9619 philips 32pfl3605 42pfl3605 chassis ram1.0a-la televisor lcd manual de servicio

Published by ER/MB/CH/WSK 1063 BU TV Consumer Care, the Netherlands Subject to modification EN 3122 785 189302010-Mar-12

Copyright 2010 Koninklijke Philips Electronics N.V.All rights reserved. No part of this publication may be reproduced, stored in a retrieval system or transmitted, in any form or by any means, electronic, mechanical, photocopying, or otherwise without the prior permission of Philips.

Colour Television Chassis

RAM1.0ALA

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Contents Page1. Revision List 22. Technical Specifications, Connections 23. Precautions, Notes, and Abbreviation List 54. Mechanical Instructions 95. Service Modes, Error Codes, and Fault Finding 166. Alignments 297. Circuit Descriptions 318. IC Data Sheets 359. Block Diagrams

Wiring Diagram (32") 41Wiring Diagram (42") 42Block Diagram 43

10. Circuit Diagrams and PWB Layouts Drawing PWBPower Supply Unit 32" (A01) 44 45-46Power Supply Unit 42" (A01) 47 48-49SSB: Power (B01) 50 62-63SSB: AV Input (B02) 51 62-63SSB: VGA Input (B03) 52 62-63SSB: HDMI Input (B04) 53 62-63SSB: RF Tuner (B05) 54 62-63SSB: Keyboard/LED/IR Interface (B06) 55 62-63SSB: MT8222 (B07) 56 62-63SSB: DDR2 DRAM (B08) 57 62-63SSB: LVDS Output (B09) 58 62-63SSB: Audio Amplifier (B10) 59 62-63SSB: TCON (B11) 60 62-63SSB: TCON Power (B12) 61 62-63IR/LED Board (J) 64 65

11. Styling SheetsStyling Sheet 32" - 42" 66

Revision ListEN 2 RAM1.0A LA1.

2010-Mar-12

1. Revision ListManual xxxx xxx xxxx.0 First release.

2. Technical Specifications, ConnectionsIndex of this chapter:2.1 Technical Specifications2.2 Directions for Use2.3 Connections

Notes: Figures can deviate due to the different set executions. Specifications are indicative (subject to change).

2.1 Technical Specifications

For on-line product support please use the links in Table 2-1. Here is product information available, as well as getting started, user manuals, frequently asked questions and software & drivers.

Table 2-1 Described Model Numbers:

2.2 Directions for Use

Directions for use can be downloaded from the following websites:http://www.philips.com/supporthttp://www.p4c.philips.com

Model Number Styling Published in32PFL3605/67 Dali 3122 785 1893032PFL3605/93 Dali 3122 785 1893032PFL3605/98 Dali 3122 785 1893042PFL3605/67 Dali 3122 785 1893042PFL3605/93 Dali 3122 785 1893042PFL3605/98 Dali 3122 785 18930

Technical Specifications, Connections EN 3RAM1.0A LA 2.

2010-Mar-12

2.3 Connections

Figure 2-1 Connection overview

Note: The following connector colour abbreviations are used (acc. to DIN/IEC 757): Bk= Black, Bu= Blue, Gn= Green, Gy= Grey, Rd= Red, Wh= White, Ye= Yellow.

2.3.1 Side Connections

1, 2 - Cinch: Video CVBS - In, Audio - InYe - Video CVBS 1 VPP / 75 ohm Wh - Audio L 0.5 VRMS / 10 kohm Rd - Audio R 0.5 VRMS / 10 kohm

3 - S-Video (Hosiden): Video Y/C - In1 - Ground Y Gnd 2 - Ground C Gnd 3 - Video Y 1 VPP / 75 ohm 4 - Video C 0.3 VPP / 75 ohm

4 - USB2.0

Figure 2-2 USB (type A)

1 - +5V 2 - Data (-) 3 - Data (+) 4 - Ground Gnd

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2.3.2 Rear Connections

5 - Aerial - In- - IEC-type (EU) Coax, 75 ohm

6 - Cinch: Audio - OutRd - Audio - R 0.5 VRMS / 10 kohm Wh - Audio - L 0.5 VRMS / 10 kohm

7 - Cinch: Video YPbPr - In, Audio - InGn - Video Y 1 VPP / 75 ohm Bu - Video Pb 0.7 VPP / 75 ohm Rd - Video Pr 0.7 VPP / 75 ohm Rd - Audio - R 0.5 VRMS / 10 kohm Wh - Audio - L 0.5 VRMS / 10 kohm

8 - VGA: Video RGB - In, Mini Jack: Audio - In

Figure 2-3 VGA Connector

1 - Video Red 0.7 VPP / 75 ohm 2 - Video Green 0.7 VPP / 75 ohm 3 - Video Blue 0.7 VPP / 75 ohm 4 - n.c. 5 - Ground Gnd 6 - Ground Red Gnd 7 - Ground Green Gnd 8 - Ground Blue Gnd 9 - +5VDC +5 V 10 - Ground Sync Gnd 11 - n.c. 12 - DDC_SDA DDC data 13 - H-sync 0 - 5 V 14 - V-sync 0 - 5 V 15 - DDC_SCL DDC clock

Wh - Audio L 0.5 VRMS / 10 kohm Rd - Audio R 0.5 VRMS / 10 kohm

9 - HDMI 1, 2: Digital Video, Digital Audio - In

Figure 2-4 HDMI (type A) connector

1 - D2+ Data channel 2 - Shield Gnd 3 - D2- Data channel 4 - D1+ Data channel 5 - Shield Gnd 6 - D1- Data channel 7 - D0+ Data channel 8 - Shield Gnd 9 - D0- Data channel 10 - CLK+ Data channel 11 - Shield Gnd 12 - CLK- Data channel 13 - Easylink/CEC Control channel 14 - n.c. 15 - DDC_SCL DDC clock 16 - DDC_SDA DDC data 17 - Ground Gnd 18 - +5V 19 - HPD Hot Plug Detect 20 - Ground Gnd

10 - Service Connector (UART)1 - Ground Gnd 2 - UART_TX Transmit 3 - UART_RX Receive

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Precautions, Notes, and Abbreviation List EN 5RAM1.0A LA 3.

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3. Precautions, Notes, and Abbreviation ListIndex of this chapter:3.1 Safety Instructions3.2 Warnings3.3 Notes3.4 Abbreviation List

3.1 Safety Instructions

Safety regulations require the following during a repair: Connect the set to the Mains/AC Power via an isolation

transformer (> 800 VA). Replace safety components, indicated by the symbol ,

only by components identical to the original ones. Any other component substitution (other than original type) may increase risk of fire or electrical shock hazard. Of de set ontploft!

Safety regulations require that after a repair, the set must be returned in its original condition. Pay in particular attention to the following points: Route the wire trees correctly and fix them with the

mounted cable clamps. Check the insulation of the Mains/AC Power lead for

external damage. Check the strain relief of the Mains/AC Power cord for

proper function. Check the electrical DC resistance between the Mains/AC

Power plug and the secondary side (only for sets that have a Mains/AC Power isolated power supply): 1. Unplug the Mains/AC Power cord and connect a wire

between the two pins of the Mains/AC Power plug. 2. Set the Mains/AC Power switch to the on position

(keep the Mains/AC Power cord unplugged!). 3. Measure the resistance value between the pins of the

Mains/AC Power plug and the metal shielding of the tuner or the aerial connection on the set. The reading should be between 4.5 M and 12 M.

4. Switch off the set, and remove the wire between the two pins of the Mains/AC Power plug.

Check the cabinet for defects, to prevent touching of any inner parts by the customer.

3.2 Warnings

All ICs and many other semiconductors are susceptible to electrostatic discharges (ESD ). Careless handling during repair can reduce life drastically. Make sure that, during repair, you are connected with the same potential as the mass of the set by a wristband with resistance. Keep components and tools also at this same potential.

Be careful during measurements in the high voltage section.

Never replace modules or other components while the unit is switched on.

When you align the set, use plastic rather than metal tools. This will prevent any short circuits and the danger of a circuit becoming unstable.

3.3 Notes

3.3.1 General

Measure the voltages and waveforms with regard to the chassis (= tuner) ground (), or hot ground (), depending on the tested area of circuitry. The voltages and waveforms shown in the diagrams are indicative. Measure them in the Service Default Mode with a colour bar signal and stereo sound (L: 3 kHz, R: 1 kHz unless stated otherwise) and

picture carrier at 475.25 MHz for PAL, or 61.25 MHz for NTSC (channel 3).

Where necessary, measure the waveforms and voltages with () and without () aerial signal. Measure the voltages in the power supply section both in normal operation () and in stand-by (). These values are indicated by means of the appropriate symbols.

3.3.2 Schematic Notes

All resistor values are in ohms, and the value multiplier is often used to indicate the decimal point location (e.g. 2K2 indicates 2.2 k).

Resistor values with no multiplier may be indicated with either an E or an R (e.g. 220E or 220R indicates 220 ).

All capacitor values are given in micro-farads ( = 10-6), nano-farads (n = 10-9), or pico-farads (p = 10-12).

Capacitor values may also use the value multiplier as the decimal point indication (e.g. 2p2 indicates 2.2 pF).

An asterisk (*) indicates component usage varies. Refer to the diversity tables for the correct values.

The correct component values are listed on the Philips Spare Parts Web Portal.

3.3.3 Spare Parts

For the latest spare part overview, consult your Philips Spare Part web portal.

3.3.4 BGA (Ball Grid Array) ICs

IntroductionFor more information on how to handle BGA devices, visit this URL: http://www.atyourservice-magazine.com. Select Magazine, then go to Repair downloads. Here you will find Information on how to deal with BGA-ICs.

BGA Temperature ProfilesFor BGA-ICs, you must use the correct temperature-profile. Where applicable and available, this profile is added to the IC Data Sheet information section in this manual.

3.3.5 Lead-free Soldering

Due to lead-free technology some rules have to be respected by the workshop during a repair: Use only lead-free soldering tin. If lead-free solder paste is

required, please contact the manufacturer of your soldering equipment. In general, use of solder paste within workshops should be avoided because paste is not easy to store and to handle.

Use only adequate solder tools applicable for lead-free soldering tin. The solder tool must be able: To reach a solder-tip temperature of at least 400C. To stabilize the adjusted temperature at the solder-tip. To exchange solder-tips for different applications.

Adjust your solder tool so that a temperature of around 360C - 380C is reached and stabilized at the solder joint. Heating time of the solder-joint should not exceed ~ 4 sec. Avoid temperatures above 400C, otherwise wear-out of tips will increase drastically and flux-fluid will be destroyed. To avoid wear-out of tips, switch off unused equipment or reduce heat.

Mix of lead-free soldering tin/parts with leaded soldering tin/parts is possible but PHILIPS recommends strongly to avoid mixed regimes. If this cannot be avoided, carefully clear the solder-joint from old tin and re-solder with new tin.

Precautions, Notes, and Abbreviation ListEN 6 RAM1.0A LA3.

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3.3.6 Alternative BOM identification

It should be noted that on the European Service website, Alternative BOM is referred to as Design variant.

The third digit in the serial number (example: AG2B0335000001) indicates the number of the alternative B.O.M. (Bill Of Materials) that has been used for producing the specific TV set. In general, it is possible that the same TV model on the market is produced with e.g. two different types of displays, coming from two different suppliers. This will then result in sets which have the same CTN (Commercial Type Number; e.g. 28PW9515/12) but which have a different B.O.M. number.By looking at the third digit of the serial number, one can identify which B.O.M. is used for the TV set he is working with.If the third digit of the serial number contains the number 1 (example: AG1B033500001), then the TV set has been manufactured according to B.O.M. number 1. If the third digit is a 2 (example: AG2B0335000001), then the set has been produced according to B.O.M. no. 2. This is important for ordering the correct spare parts!For the third digit, the numbers 1...9 and the characters A...Z can be used, so in total: 9 plus 26= 35 different B.O.M.s can be indicated by the third digit of the serial number.

Identification: The bottom line of a type plate gives a 14-digit serial number. Digits 1 and 2 refer to the production centre (e.g. AG is Bruges), digit 3 refers to the B.O.M. code, digit 4 refers to the Service version change code, digits 5 and 6 refer to the production year, and digits 7 and 8 refer to production week (in example below it is 2006 week 17). The 6 last digits contain the serial number.

Figure 3-1 Serial number (example)

3.3.7 Board Level Repair (BLR) or Component Level Repair (CLR)

If a board is defective, consult your repair procedure to decide if the board has to be exchanged or if it should be repaired on component level.If your repair procedure says the board should be exchanged completely, do not solder on the defective board. Otherwise, it cannot be returned to the O.E.M. supplier for back charging!

3.3.8 Practical Service Precautions

It makes sense to avoid exposure to electrical shock. While some sources are expected to have a possible dangerous impact, others of quite high potential are of limited current and are sometimes held in less regard.

Always respect voltages. While some may not be dangerous in themselves, they can cause unexpected reactions that are best avoided. Before reaching into a powered TV set, it is best to test the high voltage insulation. It is easy to do, and is a good service precaution.

3.4 Abbreviation List

0/6/12 SCART switch control signal on A/V board. 0 = loop through (AUX to TV), 6 = play 16 : 9 format, 12 = play 4 : 3 format

AARA Automatic Aspect Ratio Adaptation: algorithm that adapts aspect ratio to remove horizontal black bars; keeps the original aspect ratio

ACI Automatic Channel Installation: algorithm that installs TV channels directly from a cable network by means of a predefined TXT page

ADC Analogue to Digital ConverterAFC Automatic Frequency Control: control

signal used to tune to the correct frequency

AGC Automatic Gain Control: algorithm that controls the video input of the feature box

AM Amplitude ModulationAP Asia PacificAR Aspect Ratio: 4 by 3 or 16 by 9ASF Auto Screen Fit: algorithm that adapts

aspect ratio to remove horizontal black bars without discarding video information

ATSC Advanced Television Systems Committee, the digital TV standard in the USA

ATV See Auto TVAuto TV A hardware and software control

system that measures picture content, and adapts image parameters in a dynamic way

AV External Audio VideoAVC Audio Video ControllerAVIP Audio Video Input ProcessorB/G Monochrome TV system. Sound

carrier distance is 5.5 MHzBDS Business Display Solutions (iTV)BLR Board-Level RepairBTSC Broadcast Television Standard

Committee. Multiplex FM stereo sound system, originating from the USA and used e.g. in LATAM and AP-NTSC countries

B-TXT Blue TeleteXTC Centre channel (audio)CEC Consumer Electronics Control bus:

remote control bus on HDMI connections

CL Constant Level: audio output to connect with an external amplifier

CLR Component Level RepairComPair Computer aided rePairCP Connected Planet / Copy ProtectionCSM Customer Service ModeCTI Color Transient Improvement:

manipulates steepness of chroma transients

CVBS Composite Video Blanking and Synchronization

DAC Digital to Analogue ConverterDBE Dynamic Bass Enhancement: extra

low frequency amplificationDCM Data Communication Module. Also

referred to as System Card or Smartcard (for iTV).

DDC See E-DDCD/K Monochrome TV system. Sound

carrier distance is 6.5 MHzDFI Dynamic Frame Insertion

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32PF9968/10 MADE IN BELGIUM220-240V 50/60Hz

128WAG 1A0617 000001 VHF+S+H+UHF

BJ3.0E LA

Precautions, Notes, and Abbreviation List EN 7RAM1.0A LA 3.

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DFU Directions For Use: owner's manualDMR Digital Media Reader: card readerDMSD Digital Multi Standard DecodingDNM Digital Natural MotionDNR Digital Noise Reduction: noise

reduction feature of the setDRAM Dynamic RAMDRM Digital Rights ManagementDSP Digital Signal ProcessingDST Dealer Service Tool: special remote

control designed for service technicians

DTCP Digital Transmission Content Protection; A protocol for protecting digital audio/video content that is traversing a high speed serial bus, such as IEEE-1394

DVB-C Digital Video Broadcast - CableDVB-T Digital Video Broadcast - TerrestrialDVD Digital Versatile DiscDVI(-d) Digital Visual Interface (d= digital only)E-DDC Enhanced Display Data Channel

(VESA standard for communication channel and display). Using E-DDC, the video source can read the EDID information form the display.

EDID Extended Display Identification Data (VESA standard)

EEPROM Electrically Erasable and Programmable Read Only Memory

EMI Electro Magnetic InterferenceEPG Electronic Program GuideEPLD Erasable Programmable Logic DeviceEU EuropeEXT EXTernal (source), entering the set by

SCART or by cinches (jacks)FDS Full Dual Screen (same as FDW)FDW Full Dual Window (same as FDS)FLASH FLASH memoryFM Field Memory or Frequency

ModulationFPGA Field-Programmable Gate ArrayFTV Flat TeleVisionGb/s Giga bits per secondG-TXT Green TeleteXTH H_sync to the module HD High DefinitionHDD Hard Disk DriveHDCP High-bandwidth Digital Content

Protection: A key encoded into the HDMI/DVI signal that prevents video data piracy. If a source is HDCP coded and connected via HDMI/DVI without the proper HDCP decoding, the picture is put into a snow vision mode or changed to a low resolution. For normal content distribution the source and the display device must be enabled for HDCP software key decoding.

HDMI High Definition Multimedia InterfaceHP HeadPhoneI Monochrome TV system. Sound

carrier distance is 6.0 MHzI2C Inter IC busI2D Inter IC Data busI2S Inter IC Sound busIF Intermediate FrequencyIR Infra RedIRQ Interrupt RequestITU-656 The ITU Radio communication Sector

(ITU-R) is a standards body subcommittee of the International Telecommunication Union relating to radio communication. ITU-656 (a.k.a.

SDI), is a digitized video format used for broadcast grade video. Uncompressed digital component or digital composite signals can be used. The SDI signal is self-synchronizing, uses 8 bit or 10 bit data words, and has a maximum data rate of 270 Mbit/s, with a minimum bandwidth of 135 MHz.

ITV Institutional TeleVision; TV sets for hotels, hospitals etc.

LS Last Status; The settings last chosen by the customer and read and stored in RAM or in the NVM. They are called at start-up of the set to configure it according to the customer's preferences

LATAM Latin AmericaLCD Liquid Crystal DisplayLED Light Emitting DiodeL/L' Monochrome TV system. Sound

carrier distance is 6.5 MHz. L' is Band I, L is all bands except for Band I

LPL LG.Philips LCD (supplier)LS LoudspeakerLVDS Low Voltage Differential SignallingMbps Mega bits per secondM/N Monochrome TV system. Sound

carrier distance is 4.5 MHzMHEG Part of a set of international standards

related to the presentation of multimedia information, standardised by the Multimedia and Hypermedia Experts Group. It is commonly used as a language to describe interactive television services

MIPS Microprocessor without Interlocked Pipeline-Stages; A RISC-based microprocessor

MOP Matrix Output ProcessorMOSFET Metal Oxide Silicon Field Effect

Transistor, switching deviceMPEG Motion Pictures Experts GroupMPIF Multi Platform InterFaceMUTE MUTE LineMTV Mainstream TV: TV-mode with

Consumer TV features enabled (iTV)NC Not ConnectedNICAM Near Instantaneous Compounded

Audio Multiplexing. This is a digital sound system, mainly used in Europe.

NTC Negative Temperature Coefficient, non-linear resistor

NTSC National Television Standard Committee. Color system mainly used in North America and Japan. Color carrier NTSC M/N= 3.579545 MHz, NTSC 4.43= 4.433619 MHz (this is a VCR norm, it is not transmitted off-air)

NVM Non-Volatile Memory: IC containing TV related data such as alignments

O/C Open CircuitOSD On Screen DisplayOAD Over the Air Download. Method of

software upgrade via RF transmission. Upgrade software is broadcasted in TS with TV channels.

OTC On screen display Teletext and Control; also called Artistic (SAA5800)

P50 Project 50: communication protocol between TV and peripherals

PAL Phase Alternating Line. Color system mainly used in West Europe (color carrier= 4.433619 MHz) and South America (color carrier PAL M=

Precautions, Notes, and Abbreviation ListEN 8 RAM1.0A LA3.

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3.575612 MHz and PAL N= 3.582056 MHz)

PCB Printed Circuit Board (same as PWB)PCM Pulse Code ModulationPDP Plasma Display PanelPFC Power Factor Corrector (or Pre-

conditioner)PIP Picture In PicturePLL Phase Locked Loop. Used for e.g.

FST tuning systems. The customer can give directly the desired frequency

POD Point Of Deployment: a removable CAM module, implementing the CA system for a host (e.g. a TV-set)

POR Power On Reset, signal to reset the uPPSDL Power Supply for Direct view LED

backlight with 2D-dimmingPSL Power Supply with integrated LED

driversPSLS Power Supply with integrated LED

drivers with added Scanning functionality

PTC Positive Temperature Coefficient, non-linear resistor

PWB Printed Wiring Board (same as PCB)PWM Pulse Width ModulationQRC Quasi Resonant ConverterQTNR Quality Temporal Noise ReductionQVCP Quality Video Composition ProcessorRAM Random Access MemoryRGB Red, Green, and Blue. The primary

color signals for TV. By mixing levels of R, G, and B, all colors (Y/C) are reproduced.

RC Remote ControlRC5 / RC6 Signal protocol from the remote

control receiver RESET RESET signalROM Read Only MemoryRSDS Reduced Swing Differential Signalling

data interfaceR-TXT Red TeleteXTSAM Service Alignment ModeS/C Short CircuitSCART Syndicat des Constructeurs

d'Appareils Radiorcepteurs et Tlviseurs

SCL Serial Clock I2CSCL-F CLock Signal on Fast I2C busSD Standard DefinitionSDA Serial Data I2CSDA-F DAta Signal on Fast I2C busSDI Serial Digital Interface, see ITU-656SDRAM Synchronous DRAMSECAM SEequence Couleur Avec Mmoire.

Color system mainly used in France and East Europe. Color carriers= 4.406250 MHz and 4.250000 MHz

SIF Sound Intermediate FrequencySMPS Switched Mode Power SupplySoC System on ChipSOG Sync On GreenSOPS Self Oscillating Power SupplySPI Serial Peripheral Interface bus; a 4-

wire synchronous serial data link standard

S/PDIF Sony Philips Digital InterFaceSRAM Static RAMSRP Service Reference ProtocolSSB Small Signal BoardSSC Spread Spectrum Clocking, used to

reduce the effects of EMISTB Set Top BoxSTBY STand-BYSVGA 800 600 (4:3)

SVHS Super Video Home SystemSW SoftwareSWAN Spatial temporal Weighted Averaging

Noise reductionSXGA 1280 1024TFT Thin Film TransistorTHD Total Harmonic DistortionTMDS Transmission Minimized Differential

SignallingTS Transport StreamTXT TeleteXTTXT-DW Dual Window with TeleteXTUI User InterfaceuP MicroprocessorUXGA 1600 1200 (4:3)V V-sync to the module VESA Video Electronics Standards

AssociationVGA 640 480 (4:3)VL Variable Level out: processed audio

output toward external amplifierVSB Vestigial Side Band; modulation

methodWYSIWYR What You See Is What You Record:

record selection that follows main picture and sound

WXGA 1280 768 (15:9)XTAL Quartz crystalXGA 1024 768 (4:3)Y Luminance signalY/C Luminance (Y) and Chrominance (C)

signalYPbPr Component video. Luminance and

scaled color difference signals (B-Y and R-Y)

YUV Component video

Mechanical Instructions EN 9RAM1.0A LA 4.

2010-Mar-12

4. Mechanical InstructionsIndex of this chapter:4.1 Cable Dressing4.2 Service Positions4.3 Assembly/Panel Removal4.4 Set Re-assembly.

Notes: Figures below can deviate slightly from the actual situation,

due to the different set executions.

4.1 Cable Dressing

Figure 4-1 Cable dressing (32")

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Figure 4-2 Cable dressing (42")

4.2 Service Positions

For easy servicing of a TV set, the set should be put face down on a soft flat surface, foam buffers or other specific workshop tools. Ensure that a stable situation is created to perform measurements and alignments. When using foam bars take care that these always support the cabinet and never only the display. Caution: Failure to follow these guidelines can seriously damage the display! Ensure that ESD safe measures are taken.

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4.3 Assembly/Panel Removal

4.3.1 Rear Cover

Figure 4-3 Rear cover removal (32")

Figure 4-4 Rear cover removal (42")

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Warning: Disconnect the mains power cord before removing the rear cover.See Figure 4-3 and Figure 4-4.1. Remove the 3 different kind of fixation screws that secure

the rear cover.2. Lift the rear cover from the TV. Make sure that wires and

flat foils are not damaged while lifting the rear cover from the set.

4.3.2 Speakers

Figure 4-5 Speakers, PSU & SSB removal (32")

Figure 4-6 Speakers, PSU & SSB removal (42")

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See Figure 4-5 and Figure 4-6.1. Unplug the speaker connector [1] from the SSB and

remove the wire wrap from this cable.2. Remove the fixation screws from the speakers [2].3. Take the speakers out.When defective, replace the whole unit.

4.3.3 Power Supply Unit (PSU)

Caution: it is mandatory to remount all different screws at their original position during re-assembly. Failure to do so may result in damaging the PSU. See Figure 4-5 and Figure 4-6.1. Unplug all connectors [3] from the PSU.2. Remove all fixation screws [4] from the PSU.3. The PSU can now be taken out of the set.When defective, replace the whole unit.

4.3.4 Small Signal Board (SSB)

Caution: it is mandatory to remount all different screws at their original position during re-assembly. Failure to do so may result in damaging the SSB. See Figure 4-5 and Figure 4-6.1. Release the clips from both the LVDS Flat Foil

connectors [5].Caution: be careful, as these are very fragile connectors! Take the flat foils out of their connectors.

2. Unplug all other connectors [1] and [6].3. Remove grounding screws [7] from the stand support.4. Remove all other fixation screws [8] from the SSB.5. The SSB can now be lifted upwards away from the bottom

shield cover. Caution: be careful not to damage the bottom shielding between the SSB and the plastic stand-off.

4.3.5 Stand support plate

Figure 4-7 Stand support plate (32")

Figure 4-8 Stand support plate (42")

See Figure 4-7 and Figure 4-8.1. Remove the SSB as described earlier.2. Remove the PSU as described earlier.3. Remove shielding fixation screws [1]. See Figure 4-74. Remove stand support plate fixation screws [2].5. Lift up the support plate together with the stand.

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4.3.6 Bezel removal

Figure 4-9 Bezel removal (32")

Figure 4-10 Bezel removal (42")

See Figure 4-9 and Figure 4-10.1. Remove the speakers as described earlier.2. Remove the panel holders [3] (42" version only). 3. Remove the other fixation screws [1] and [2].4. Lift up the LCD panel.

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4.3.7 IR/LED Board

Figure 4-11 IR/LED Board

1. Remove the bezel as described earlier.2. Unplug the connectors from the IR/LED board.3. Release the clips that hold the board and take it from the

bezel, see Figure 4-11.When defective, replace the whole unit.

4.3.8 Keyboard Control Board

1. Remove the bezel as described earlier.2. Unplug the connector from the Keyboard Control Board.3. Remove the fixation screws from the Keyboard Control

Board and take unit out.When defective, replace the whole unit.

4.3.9 LCD removal

Figure 4-12 Vesa spacer

1. Remove the SSB as described earlier.2. Remove the PSU as described earlier.3. Remove the stand support plate as described earlier.4. Remove the bezel as described earlier.5. Remove the Vesa spacer as shown in Figure 4-12 by using

a 10 m.m. wrench. Note it has been secured with Loctite 2440.

6. Lift the LCD Panel from the bezel.

4.4 Set Re-assembly

To re-assemble the whole set, execute all processes in reverse order.

Notes: While re-assembling, make sure that all cables are placed

and connected in their original position. See Figure 4-1 and Figure 4-2.

Pay special attention not to damage the EMC foams on the SSB shields. Ensure that EMC foams are mounted correctly.

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Service Modes, Error Codes, and Fault FindingEN 16 RAM1.0A LA5.

2010-Mar-12

5. Service Modes, Error Codes, and Fault FindingIndex of this chapter:5.1 Service Modes5.2 Service Tools5.3 Software Upgrading5.4 Error Codes5.5 Fault Finding and Repair Tips

5.1 Service Modes

The Customer Service Mode (CSM) is used for communication between the call centre and the customer, while the Service Alignment Mode (SAM) offers several features for the service technician. The Standard Default Mode (SDM) creates a pre-defined setting.

This chassis also offers the option of using ComPair, a hardware interface between a computer and the TV chassis. It offers the abilities of structured troubleshooting, error code reading, and software version read-out for all chassis.

5.1.1 Service Default Mode (SDM)

Purpose To create a pre-defined setting, to get the same

measurement results as given in this manual To start the blinking LED procedure where only Layer 2

errors are displayed (see also Table 5-1).

How to ActivateUse the standard RC transmitter and key in the code 062596, directly followed by the MENU button.

How to ExitSwitch the set to STANDBY.

5.1.2 Customer Service Mode (CSM)

PurposeThe Customer Service Mode shows error codes and information on the TV's operation settings.The call centre can instruct the customer (by telephone) to enter CSM in order to identify the status of the set.This helps the call centre to diagnose problems and failures in the TV set before making a service call.The CSM is a read-only mode; therefore, modifications are not possible in this mode.

How to Activate CSMKey in the code 123654 via the standard RC transmitter.

Note: Activation of the CSM is only possible if there is no (user) menu on the screen!

Figure 5-1 CSM Menu [1/3]



How to NavigateToggling between menus CSM1, -2 and -3 can be done by means of the CURSOR-DOWN/UP knob.

CSM1 Set Type Philips Model type number (16 characters

maximum) Production code Displays the production serial number of

the TV. Note that if an NVM is replaced or is initialized after corruption, this production code has to be re-written to NVM. ComPair will foresee a in possibility to do this.

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Service Modes, Error Codes, and Fault Finding EN 17RAM1.0A LA 5.

2010-Mar-12

Installation date Installation date. Option code Displays the option code. Codes Displays the latest 5 error codes status.

Refer to 5-1 Error codes. SSB Displays the 12NC of the SSB (Small Signal Board). Display Displays the 12NC of the display (LCD Panel). PSU Displays the 12NC of PSU (Power Supply Unit).

CSM2 Current Main SW Main software version. Standby SW Standby software version. SW version of other uP Other uP software version if

applicable. NVM-version NVM version.

CSM3 Signal Quality/Present Digital percentage and analog

Yes/No. Child lock Child lock active/non-active. HDCP keys Detect and display HDCP keys: Valid/Non-

valid. HDMI audio format input stream Indication of HDMI

audio input stream format e.g. Dolby TrueHD, DTS-HD Master Audio, MPCM.

HDMI video format input stream Indication of HDMI video input stream format e.g. 576i50Hz, 576p50Hz, 720p50Hz, 1080i50Hz, 1080p50Hz.

How to Exit CSMPress MENU on the RC-transmitter.

5.1.3 Service Alignment Mode (SAM)

How to enterTo enter the factory mode, use the following method: Press the following key sequence on the remote control

transmitter: 062596 directly followed by the INFO button.

After entering the service alignment mode, the following screen is visible (refer to Figure 5-4).

Figure 5-4 Example of SAM

How to NavigateThe up/down cursor keys can be used to navigate through the menu, while with the Left/Right cursor the values can be changed.

How to StoreChoose DO, and press the OK button.

How to go one level up in the menuPress the MENU button.

How to ExitGo up in the menu to the root and switch the set to STANDBY.

5.2 Service Tools

5.2.1 ComPair

IntroductionComPair (Computer Aided Repair) is a Service tool for Philips Consumer Electronics products. and offers the following:1. ComPair helps to quickly get an understanding on how to

repair the chassis in a short and effective way.2. ComPair allows very detailed diagnostics and is therefore

capable of accurately indicating problem areas. No knowledge on I2C or UART commands is necessary, because ComPair takes care of this.

3. ComPair speeds up the repair time since it can automatically communicate with the chassis (when the uP is working) and all repair information is directly available.

4. ComPair features TV software upgrade possibilities.

SpecificationsComPair consists of a Windows based fault finding program and an interface box between PC and the (defective) product. The ComPair II interface box is connected to the PC via an USB cable. For the TV chassis, the ComPair interface box and the TV communicate via a bi-directional cable via the service connector(s).The ComPair fault finding program is able to determine the problem of the defective television, by a combination of automatic diagnostics and an interactive question/answer procedure.

How to ConnectThis is described in the chassis fault finding database in ComPair.

Figure 5-5 ComPair II interface connection

Caution: It is compulsory to connect the TV to the PC as shown in the picture above (with the ComPair interface in between), as the ComPair interface acts as a level shifter. If one connects the TV directly to the PC (via UART), ICs will be damaged!

How to OrderComPair II order codes: ComPair II interface: 3122 785 91020. Programming software can be downloaded from the Philips

Service portal. ComPair UART interface cable for RAM1.1x xx.

3138 188 75051.

Note: While having problems, contact the local support desk.

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10000_036_090121.eps091118

TOUART SERVICECONNECTOR

TOUART SERVICECONNECTOR

TOI2C SERVICECONNECTOR

TO TV

PC

HDMII2C only

Optional power5V DC

ComPair II Developed by Philips Brugge

RC outRC in

OptionalSwitch

Power ModeLink/Activity I2C

ComPair II Multifunction

RS232 /UART


2010-Mar-12

5.3 Software Upgrading

5.3.1 Introduction

Philips continuously tries to improve its products, and we recommend that you update the TV software when updates are available. Software update files can be obtained from your dealer or can be downloaded from the following website:http://www.philips.com/support

Preparing a portable memory for software upgradeYou require the following:1. A personal computer connected to the Internet.2. An archive utility that supports the ZIP-format (e.g.

WinZip for Windows or Stufflt for Mac OS).3. A USB flash drive (preferably empty).

Note:1. Only FAT/DOS-formatted flash drives are supported.2. Only use software update files that can be found on the

Philips Service Portal.

5.3.2 Check the current TV software version

Before starting the software upgrade procedure, it is advised to check the current TV software version:1. Press the Menu button on your remote control.2. Select Setup and press OK, then select [Software

update] > [Current software].If the current software version of your TV is the same as the latest update file found on the Philips Service Portal, it is not necessary to update the TV software.

5.3.3 Download the latest software

1. Point your web browser to the Philips Service Portal.2. Find information and software related to your TV.3. Select the latest software update file and download it to

your PC.4. Insert a USB flash drive into one of the USB ports of your

PC.5. Decompress the downloaded ZIP file and copy the

autorun.upg to the root directory of the USB flash drive.

5.3.4 Update the TV software

1. Power off your TV and disconnect all memory devices.2. Insert the USB flash drive that contains the software

update file.3. Switch on your TV, and TV will display the Main Menu upon

detection of USB portable. 4. Select [Setup] and press OK. See Figure 5-6.

Note: If the USB flash drive is not detected after power up, disconnect it and re-insert it.

5. Select [Software update] > [Local updates] and press OK. See Figure 5-7 and Figure 5-8.

6. When prompted, select [Cancel] or [OK] and press OK. See Figure 5-9.

7. To proceed, In next menu select [Start] and press OK to start software updates. See Figure 5-10.

8. Upgrading will now begins and the status of the updating progress will be displayed. See Figure 5-11.

9. When the TV software is updated, the TV automatically restarts and the TV starts up with the new software.

Figure 5-6 Update the TV software 1




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2010-Mar-12



Note: Do not remove the USB flash drive during the software

update. If a power failure occurs during the update, do not remove

the USB flash drive from the TV. The TV will continue the software update as soon as power comes back.

If an error occurs during the update retry the procedure or contact your dealer.

We do not recommend downgrading to an older version. Once the upgrade is finished, use your PC to remove the

TV software from your USB portable memory.

5.4 Error Codes

The error code buffer contains all errors detected since the last time the buffer was erased. The buffer is written from left to right. When an error occurs that is not yet in the error code buffer, it is displayed at the left side and all other errors shift one position to the right.

Table 5-1 Error codes

Notes:1. x = layer 1 error indication, yy = layer 2 error indication.

5.5 Fault Finding and Repair Tips

5.5.1 Speakers

Make sure that the volume is set to minimum during disconnecting the speakers in the ON-state of the TV. The audio amplifier can be damaged by disconnecting the speakers during ON-state of the set!

5.5.2 Tuner

Attention: In case the tuner is replaced, always check the tuner options.

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Error Code x yy1 Event Error blinking Defective boardin SDM in CSM spontaneous

0 00 no error n.a. n.a. n.a. n.a.2 13 I2C bus error layer 2 layer 1 layer 1 SSB3 16 12V sensing of

platform supply- - layer 1 platform supply

4 18 false POK-line display or inverter

layer 2 layer 1 layer 1 display supply/inverter

2 27 multi-standard demodulator (IF)

layer 2 layer 1 - SSB

2 34 tuner layer 2 layer 1 - SSB


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5.5.3 Power failure

For trouble shooting, following reference voltages are given: After power-up After power-down (switched to standby).

Table 5-2 Reference voltages

Signal nameLocation (testpoint, item + pin no.)

Voltage ( 5%)after power-up

after power-down(standby)

5VIN FB1 5 V 5 V5VSB R29 5 V 5 V3V3SB FB18 3.3 V 3.3 V1V0SB C6 1.1 V 1.1 V5VSW Q28 pin 7,8 5 V 0 VVGA_5V U6 pin 8 4.8 V 4.8 VREG3V3 U38 pin 4 3.3 V 3.3 V3V3SW Q28 pin 5, 6 3.3 V 0 V1V2SB U3 pin 3 1.2 V 1.2 VVDD33 FB8 3.3 V 3.3 V3V3DRV FB15 3.3 V 0 V1V8SW U1 pin 4 1.8 V 0 VB3V3SW FB20 3.3 V 0 V12VIN FB2 12 V 0 V12VSW R34 12 V 0 VPANEL_VDD Q22 pin 5 to 8 12 V 0 VTUNER_VCC U9 pin 3 5 V 0 V12VAMP C454 12 V 0 VREG5V U39 pin 3 5 V 0 VH_VDD C363 8 V 0 V3V3TC C419 3.3 V 0 VVGL R587 -5 V 0 VVGH C392 28.5 V 0 V16VTC C359 16.5 V 0 V


2010-Mar-12

5.5.4 Trouble shooting diagrams

Set is in PC mode, no image

Figure 5-12 Trouble shooting diagram - set is in PC mode, no image

No

Yes

Yes

Yes

No

No

No

Start

LED is lighted

1. Is Power Core available? 2. Is SSB J1-Pin 6, 7, 8 - 5V available? 3. Is SSB J3-Pin 4 - 0~0.8V (Low level) available? 4. Is SSB J2-Pin9 - 0~0.8V (Low level) available?

LED ON to OFF

1. Is SSB J3 Pin 4 - 2.5~3.3V (Hi level) available?

Is backlight on?

Is Display Normal?

END

1. D-sub cable is OK? 2. Check whether J2 -Pin 6 PWM is normal. 3. Is P2 video input signal normal? 4. Check whether U36 input/output of video signal is normal. 5. Check whether J10,J11 video signal is normal. 6. Is Connection of J10 and J11 FFC cable OK?

1. Is SSB J1 PIN 9, J2-Pin1, 2 Voltage 12V available? 2. Check if J1 Pin 2 - 2.5~3.3V(Hi Level) is available? 3. Check if J2 Pin 5 - 2.5~3.3V(Hi Level) is available?

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Set is in TV/Composite video mode, no image

Figure 5-13 Trouble shooting diagram - set is in TV/Composite video mode, no image

No

No

No

No

Yes

Yes

Yes

Start

LED is lighted

1. Is Power Core available? 2. Is SSB J1-Pin 6, 7, 8- 5V available? 3. Is SSB J3-Pin 4-0~0.8V (Low level) available? 4. Is SSB J2-Pin9-0~0.8V (Low level) available?

LED ON to OFF 1. Is SSB J3 Pin 4-2.5~3.3V (Hi level) available?

Is backlight on?

Is Display Normal?

END

1. Axial RF/AV Composite /S-Video cable are OK? 2. Check whether J2 -Pin 6 PWM is normal. 3. Is T1/P3 video input signal normal? 4. Check whether U36 input/output of video signal is normal. 5. Check whether J10,J11 video signal is normal 6. Is Connection of J10 and J11 FFC Cable OK?

1. Is SSB J1-PIN9, J2-Pin1, 2 Voltage 12V available? 2. Check if J1-Pin 2-2.5~3.3V(Hi Level) is available. 3. Check if J2, Pin 5-2.5~3.3V(Hi Level) is available.

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Set is in Component video mode, no image

Figure 5-14 Trouble shooting diagram - set is in Component video mode, no image

No

No

No

No

Yes

Yes

Yes

Start

LED is lighted

1. Is Power Core available? 2. Is SSB J1-Pin 6, 7, 8- 5V available? 3. Is SSB J3-Pin 4 - 0~0.8V (Low level) available? 4. Is SSB J2-Pin 9 - 0~0.8V (Low level) available?

LED ON to OFF 1. Is SSB J3 Pin 4 - 2.5~3.3V (Hi level) available?

Is backlight on?

Is Display Normal?

END

1. Component Cable is OK? 2. Check whether J2 -Pin 6 PWM is normal. 3. Is P1/P2 video input signal normal? 4. Check whether U36 input/output of video signal is normal. 5. Check whether J10,J11 video signal is normal 6. Is Connection of J10 and J11 FFC Cable OK?

1. Is SSB J1-PIN9, J2-Pin1, 2 Voltage 12V available? 2. Check if J1-Pin 2-2.5~3.3V(Hi Level) is available 3. Check if J2, Pin 5-2.5~3.3V(Hi Level) is available

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2010-Mar-12

Set is in HDMI mode, no image

Figure 5-15 Set is in HDMI mode, no image

No

No

No

No

Yes

Yes

Yes

Yes

Start

LED is lighted

1. Is Power Core available? 2. Is SSB J1 - Pin 6, 7, 8- 5V available? 3. Is SSB J3 - Pin 4-0~0.8V (Low level) available? 4. Is SSB J2 - Pin 9-0~0.8V (Low level) available?

LED ON to OFF

1. Is SSB J3 Pin 4-2.5~3.3V (Hi level) available?

Is backlight on?

Is Display Normal?

END

1. HDMI Cable is OK? 2. Check whether J2 -Pin 6 PWM is normal. 3. Is P8/P9 video input signal normal? 4. Check whether U36 input/output of video signal is normal. 5. Check whether J10,J11 video signal is normal 6. Is Connection of J10 and J11 FFC Cable OK?

1. Is SSB J1-PIN9, J2-Pin1, 2 Voltage 12V available? 2. Check if J1-Pin 2-2.5~3.3V(Hi Level) is available. 3. Check if J2, Pin 5-2.5~3.3V(Hi Level) is available.

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2010-Mar-12

DC/DC converter

Figure 5-16 DC/DC converter [1/2]

Yes

Yes

Yes

Yes

Yes

Yes

Yes

Yes

Yes

Yes

The voltage is about +12V while power switch on 1. J1/J2 connection good 2. Check power board

The voltage is about +5V while power switch on 1. Check Q27-Gate B

No

No

No

No

No

No

No

No

No

No

No

Start

J1 PIN6, 7, 8

J1 PIN 9, J2 PIN 1/2

The voltage is about +5V 1. Check power board 2. Check power cable connection J1

Q28 PIN 7, 8

U4 PIN 5, 6 The voltage is about +3.3V 1. Check U4 PIN2 EN

U2 PIN 5, 6 The voltage is about +1.0V

U3 PIN 3 The voltage is about +1.2V

U1 PIN2,4 The voltage is about +1.8V

U38 PIN 2, 4 The voltage is about +3.3V

U9, U39 PIN 3 The voltage is about +5V

T CON-U35 PIN 3 The voltage is about +3.3V

T CON-U32 PIN2 The voltage is about +12V

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2010-Mar-12

Figure 5-17 DC/DC converter [2/2]

No

No

No

No

No

Yes

Yes

Yes

Yes

Yes

Yes

T CON-U35 PIN 2,4 The voltage is about +1.8V

T CON-R556

The voltage is about +16V

END

T CON-D24 PIN 3

T CON-R587

The voltage is about +27.1V

The voltage is about -5V

T CON-L8 The voltage is about +8V

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2010-Mar-12

DDC reading

Figure 5-18 DDC reading

No

No

Yes

Yes

Yes

Start

Analog DDC OK?

Support DDC1/2B 1. VGA cable ok? 2. Check signal (U6 to PIN5, 6) 3. Check U6- PIN8 5 V 4. Is input signal compliant to protocol?

HDMI DDC OK?

Support DDC1/2B 1. HDMI cable ok? 2. Check signal (U15 to Pin5, 6) 3. Check signal (U16 to Pin5, 6) 4. Is input signal compliant to protocol?

END

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2010-Mar-12

No audio

Figure 5-19 No audio

Yes

Yes

Yes

Yes

No

No

No

No

Start

Input signal good? 1. Check Audio source 2. Check the player of source

Output Source OK? 1. Check Speaker 2. Audio Output of J6 Audio

Signal

Check amplifier OK?

END

Check signal correct? 1. Check MT8222 Audio In/Out 2. U37 AUDIO In/Out

1. Check U23 Audio Signal In/OUT

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Alignments EN 29RAM1.0A LA 6.

2010-Mar-12

6. AlignmentsIndex of this chapter:6.1 General Alignment Conditions6.2 Hardware Alignments6.3 Software Alignments6.4 Display Option Settings6.5 Reset of Repaired SSB

Note: The Service Alignment Mode (SAM) are described in chapter 5. Service Modes, Error Codes, and Fault Finding. Menu navigation is done with the CURSOR UP, DOWN, LEFT or RIGHT keys of the remote control transmitter.

6.1 General Alignment Conditions

Perform all electrical adjustments under the following conditions: Power supply voltage: 120 - 230 VAC, 50 10 Hz. Connect the set to the mains via an isolation transformer

with low internal resistance. Allow the set to warm up for approximately 15 minutes. Measure voltages and waveforms in relation to correct

ground (e.g. measure audio signals in relation to AUDIO_GND).Caution: It is not allowed to use heatsinks as ground.

Test probe: Ri > 10 M, Ci < 20 pF. Use an isolated trimmer/screwdriver to perform

alignments.

6.1.1 Alignment Sequence

Set the correct options: In SAM, select Options and then Option numbers Fill in the option numbers for Group 1 and Group 2

according to the set sticker (see also section 6.4 Display Option Settings).

Press OK on the remote control before the cursor is moved to the left

In submenu Option numbers select Store and press OK on the RC, or

In main menu, select Store again and press OK on the RC Switch the stand to standby.Warm the set up for >15 minutes.

6.2 Hardware Alignments

Not applicable.

6.3 Software Alignments

Put the set in SAM mode (see chapter 5. Service Modes, Error Codes, and Fault Finding). The SAM menu will now appear on the screen. Select RGB Align and go to one of the sub menus. The alignments are explained below.The following item can be aligned: White point.

To store the data: Press OK on the RC before the cursor is moved to the

left. In main menu select Store and press OK on the RC. Press MENU on the RC to switch back to the main menu. Switch the set to stand-by mode.

For the next alignments, supply the following test signals via a video generator to the RF input: EU/AP-PAL models: a PAL B/G TV-signal with a signal

strength of at least 1 mV and a frequency of 475.25 MHz

US/AP-NTSC models: an NTSC M/N TV-signal with a signal strength of at least 1 mV and a frequency of 61.25 MHz (channel 3).

LATAM models: an NTSC M TV-signal with a signal strength of at least 1 mV and a frequency of 61.25 MHz (channel 3).

DVB-T models: a DVB-T signal with the following specifications:- frequency: 546.00 PID- video: 0B 06 PID- PCR: 0B 06 PID- Audio: 0B 07.

6.3.1 White Point

Choose TV menu, TV Settings and then Picture and set Smart Picture to Vivid mode.

White point alignment LCD screens: Use a 100% white screen as input signal and set the

following values: Colour temperature: Normal. All White point values to: 127. Red BL offset value to 240 for HDMI source. Green BL offset value to 240 for HDMI source. Red BL offset value to 0 for VGA source. Green BL offset value 0 for VGA source.

In case you have a colour analyser: Measure with a calibrated contactless (max. 25 mm) colour

analyser in the centre of the screen. Consequently, the measurement needs to be done in a dark environment.

Adjust the correct x, y coordinates (while holding one of the White point registers R, G or B on 127) by means of decreasing the value of one or two other white points to the correct x, y coordinates (see Table 6-1). Tolerance: dx: 0.004, dy: 0.004.

Repeat this step for the other colour temperatures that need to be aligned.

When finished press OK on the RC and then press STORE (in the SAM root menu) to store the aligned values to the NVM.

Restore the initial picture settings after the alignments.

Table 6-1 White D alignment values

If you do not have a colour analyser, you can use the default values. This is the next best solution. The default values are average values coming from production. Select a COLOUR TEMPERATURE (e.g. COOL,

NORMAL, or WARM). Set the White point RED, GREEN and BLUE default

values according to the values in Table 6-2. When finished press OK on the RC, then press STORE (in

the SAM root menu) to store the aligned values to the NVM. Restore the initial picture settings after the alignments.

Value Cool (11000K) Normal (9000K) Warm (6500K)x 0.276 0.287 0.313y 0.282 0.296 0.329

AlignmentsEN 30 RAM1.0A LA6.

2010-Mar-12

Table 6-2 White tone default settings 32" & 42" Dali sets(3xxx series)

6.4 Display Option Settings

Table 6-3 Display code overview

6.5 Reset of Repaired SSB

A very important issue towards a repaired SSB from a service repair shop implies the reset of the NVM on the SSB.A repaired SSB in service should get the service Set type 00PF0000000000 and Production code 00000000000000.Also the virgin bit is to be set. To set all this, you can use the ComPair tool.

White Tone 32" 42"Black level offset

Colour Temp R G B R G B R G Normal t.b.d. t.b.d. t.b.d. t.b.d. t.b.d. t.b.d. t.b.d. t.b.d.Cool t.b.d. t.b.d. t.b.d. t.b.d. t.b.d. t.b.d. t.b.d. t.b.d.Warm t.b.d. t.b.d. t.b.d. t.b.d. t.b.d. t.b.d. t.b.d. t.b.d.

CTN_ALT BOM# Panel Type Display code in SAM32PFL3605/67 LGD LC320WUY-SCA1-8R1 00932PFL3605/93 LGD LC320WUY-SCA1-8R1 004

32PFL3605/98 LGD LC320WUY-SCA1-8R1 00142PFL3605/67 LGD LC420WUY-SCA1-7R1 010

42PFL3605/93 LGD LC420WUY-SCA1-7R1 00542PFL3605/98 LGD LC420WUY-SCA1-7R1 002

Circuit Descriptions EN 31RAM1.0A LA 7.

2010-Mar-12

7. Circuit DescriptionsIndex of this chapter:7.1 Introduction7.2 Power Architecture7.3 MT8222 Video/Audio processor

Notes: Only new circuits (circuits that are not published recently)

are described. Figures can deviate slightly from the actual situation, due

to different set executions. For a good understanding of the following circuit

descriptions, please use the wiring, block (seechapter 9. Block Diagrams) and circuit diagrams (see chapter 10. Circuit Diagrams and PWB Layouts). Where necessary, you will find a separate drawing for clarification.

7.1 Introduction

The RAM1.0A LA chassis is using the MT8222 video and audio processor.

7.1.1 Implementation

Key components of this chassis are: MT8222 scaler HFT-8/125H (China/AP)/HFT-8-13F2 (Argentina) tuner K3953M/K9362M (China/AP)/

M3953M/M9370M (Argentina) saw filter TDA9885TS IF demultiplexer TPA3101D2 audio amplifier TL2428MC T-CON IC

7.1.2 RAM1.0A LA Architecture Overview

For details about the chassis diagrams refer to chapter 10. Circuit Diagrams and PWB Layouts. An overview of the RAM1.0A LA architecture can be found in Figure 7-1.

Figure 7-1 Architecture of RAM1.0A LA

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M AINP OW E RS UP P LY BLOCK

LCD PANEL (1920 1080 )

S ca ler ch ipMTK

MT8222AMMU for FHD

Ana logTuner

12 V D C

M ini-LVDS

P/I boa rd

5 V D C

DDR2 256Mb 2NT5TU32M 16 CG-25C

A udio A mpC lass-D

(T PA 3101D 2)D C/DC

conversion

M a in boa rd

BL boost

POK

PWM

BL on/off

Co

mp

osite

S-V

ide

o

HD

MI2

L R

CV

BSA

udio

out

SPI FLASH (4MB)MX25L3205DM

3V3

EDIDEDIDEDID

1V81V2

Power

Analogue Audio

Video &control signal

5V

5V0

IF

R /L

H/P

out

(Op

tional)

S A WFilter

S A WFilter

IF DecoderTD A 9885CVBS

S IF VIF

S IF

D-S

UB

Co

mp

on

ent

B /L IN V E R TE R

DUSB

-SU

B

Audio

in

Co

mp

on

ent

Aud

io in

Co

mp

osite

S-V

ide

oA

udio

in

X1X2

X1

TCO NTL2428MC

HD

MI1

EEPRO M24C04

EEPRO M24C32

KEY PAD I.R. REC EIVER

Audio sw itchHEF4052

Circuit DescriptionsEN 32 RAM1.0A LA7.

2010-Mar-12

7.1.3 SSB Cell Layout

Figure 7-2 SSB layout cells (top view)

18930_211_100310.eps100310

DC - DC CONVERSIONTCON

DDR2 Scaler

Audio Amplifier

INPUT/OUTPUT CONNECTORS

ServiceConnector

TUNER

Circuit Descriptions EN 33RAM1.0A LA 7.

2010-Mar-12

7.2 Power Architecture

Refer to figure Figure 7-3 for the power architecture of this platform. For trouble shooting, refer to section 5.5.3 Power failure.

Figure 7-3 Power Architecture RAM1.0A LA platform

18930_212_100310.eps100315

PowerBoard

U4

AP1534SG

12VIN

U2

Q28_1MOS_SSG4953

AP1534SG

IR/LED BD

BS0V1BSV5 DVDD10

3V3SB

U21

RESET_MAX809STRG

TJ3965D

U31V2SB

AVDD33_CVBS

AVDD33_XTAL

AVDD33_ADAC

AVDD33_USB

AVDD33_AADC

AVDD33_LVDS

AVDD33_SIF AVDD33_DIG

AVDD33_REFP_AADC

AVDD33_VGA

AVDD33_HDMI

FB183V3SW

U1

AP1084KL1V8SW

U26

DRV602PWR

U20

AT24C32CN

AVDD12_PLL

AVDD12_LVDS

AVDD12_USB

AVDD12_DIG_RGB

AVDD12_MEMPLL

AVDD12_RGB

AVDD12_VPLL

AVDD12_HDMI

U22

DDR_NT5TU32M16CG

VCC2IO_1

VCC2IO_2

VCC2IO_3

RVREF0

5VIN 5VSB

12 VSW

MOS_RSS075P03

Q22PANEL_VDD

FB165VSW U8Q28_2

U7

USB_TPS2041BDR

D5

BAT54CVGA_5V U6

MOS_SSG4953

AT24C02BN

PI5C3257QE

Audio_SW_CD 4052BNSR

U5

AZ7805T

U9TUNER_VCC_5V

U23

AUDIO_AMP_TPA3101D2PHPR

MAX17113ETL

U34

U32

RT8250GSPH_VDD

FB18

VGL

VGH

U35

Gamma_MAX9668

AP1117EL1V8TC TL2428_V183V3TC

16VTC U30

I 725 mA

I 2.16 A

I 843 mA

TL2428_V18

T1

HFT-8B/125FB5

FB16

U10

TDA9885TS

GPIO25

GPIO5

R233

R266

F2

125V/3A

C8710uf/10V

R236

R235

+ CE16100uf/25V

+ CE17100uf/25V

F3

63V/2A

R232

R224

R231

R266

R237

R228

R226

+ CE8220uf/25V

+ CE26220uf/25V

R225

+ CE7220uf/25V

R234F1

125V/3A

+ CE4220uf/25V

+ CE7220uf/25V

C8710uf/10V

+ CE3220uf/25V

R227

+ CE6220uf/25V

R229+ CE7220uf/25V

R230

+ CE27100uf/25V

Circuit DescriptionsEN 34 RAM1.0A LA7.

2010-Mar-12

7.3 MT8222 Video/Audio processor

Refer to figure Figure 7-4 for the power architecture of this platform.

Figure 7-4 MT8222 Video/Audio system application

7.3.1 Signal paths

RGBAnalogue RGB signals are transferred by the MT8222 to a digital signal by the internal A/D converter. The MT8222 generates an LVDS signal to the TL2428 on-chip TCON which drives the LCD display.

HDMIHDMI signals are further processed digitally by the MT8222. The MT8222 generates an LVDS signal to the TL2428 on-chip TCON which drives the LCD display.

Component InputComponent signals are processed by the MT8222. The MT8222 generates an LVDS signal to the TL2428 on-chip TCON which drives the LCD display.Audio is separately processed by the MT8222 and further processed by the CS4344 and then the audio amplifier.

RF InputRF input signals are demodulated by the TDA9885 IF demodulator and further processed by the MT8222. The signal is then split into an video and an audio part.

The video signal is further processed by the MT8222 which generates an LVDS signal to the TL2428 on-chip TCON which drives the LCD display.The audio signal is further processed by the MT8222 and split into two parts. One part drives the Stereo Line Driver AUDIO OUT chain, the other part drives the CS4344 and the audio amplifier.

18930_213_100310.eps100310

PRST#

U19MX25L3205DM2I-12G

NT5TU32M16CG-25C

Amp R+

Audio Amp

U23

TPA3101D2PHPR

U22

DATA

Amp L-Amp L+

Amp R-

IR_

DATA

ADIN 0

TDA9885TSV5 U10

Y1 4 MHz

REF

LED 2

ADIN 0

AT24C32CN-SH-TEEPROM

U29

TCONLVDSU36

TL2428MC

VIF(K3953M30) SAW1

VIF

SIF(K9650M30) SAW2

SIF

TCVBS-N&P

AT24C02

AT24C02

VGA EDID EEPROM

Data Bus 2

Data Bus 1

OPWR0 5V H1

HDMI DDC I2C

T-CON I2C

HDMI DDC I2C

OPWR0 5V H2 U16

U15

U6

RGB & H/V SYNC

o

o o

o

EEPROM

EEPROM

AV1 L/R IN

VGA L/R IN

VGA I2C VGA I2C

SC1 IN

SY1 IN

AV1 IN

Y1 IN

YPBPR1 L/R IN

PR1 IN

PB1 IN

AL2 & AR2 OUT

MT8222

U17

Tuner

Line OUT

VGA Audio Input

AV1 Input

CVI-1 Input

VGA Input

PB2 IN

Y2 IN

YPBPR2 L/R IN

PR2 INCVI-2 Input

HDMI1

HDMI2

USB

DRV602PWR U26

LINE OUT R/L

CS4344

U37

I2S DACIF TunerAGC Tuner

Tuner SCL/SDA

U7

Channel Switch74HC4052PW Channel 2

Channel 3

Channel 1

USB DM

Debug PORT RXTX

USB DP

Y227MHz

K

E

Y

B

D

Reset Circuit

LCD PANELT CON SIGNAL

DDR

Flash

Y6CSTCE10M0G55

IR BD

I2S

10MHz

DAC L

DAC R

T-CON I2C

Scaler UART

IC Data Sheets EN 35RAM1.0A LA 8.

2010-Mar-12

8. IC Data SheetsThis section shows the internal block diagrams and pin configurations of ICs that are drawn as black boxes in the electrical diagrams (with the exception of memory and logic ICs).

8.1 Diagram B05, TDA9885 (IC U10)

Figure 8-1 Internal block diagram and pin configuration

18930_300_100308.eps100308

Block diagram

Pinning information

1

2

3

4

5

6

7

8

9

10

11

12

24

23

22

21

20

19

18

17

16

15

14

13

TDA9885T

n.c.

VIF2

OP1

FMPLL

DEEM

AFD

DGND

AUD

TOP

SDA

SCL

SIOMAD

SIF2

SIF1

OP2

AFC

VP

VPLL

AGND

CVBS

VAGC

REF

TAGC

n.c.

DIGITAL VCO CONTROL AFC DETECTORRC VCO

VIF-PLL

VIF-AGCTUNER AGC

SUPPLY SIF AGC

AUDIO PROCESSINGAND SWITCHES

NARROW-BANDFM-PLL DEMODULATOR

SINGLE REFERENCE QSS MIXERINTERCARRIER MIXER

AND AM DEMODULATOR

SOUND TRAPS4.5 to 6.5 MHz

TAGC

CVAGC(pos)

CAGC(neg) CBL

VAGC(1)TOP

14

VPLL

19 121561 9

41011 1218 20

2

117

8

5

6

external reference signalor 4 MHz crystal

REF AFC

AUD

CVBS

audio output

video output: 2 V (p-p)[1.1 V (p-p) without trap]

CAF

SIOMADSDASCL

MAD

VP

CAGC

13

n.c.AGND

7

DGND

OUTPUTPORTS I

2C-BUS TRANSCEIVER

223

LLPMF2PO1PO

DEEM

AFD

sound intercarrier outputand MAD select

FM-PLLfilter

VIF-PLLfilter

de-emphasisnetwork

VIF2

n.c.

24

23

SIF2

SIF1

TDA9885

IC Data SheetsEN 36 RAM1.0A LA8.

2010-Mar-12

8.2 Diagram B07, MT8222TMMU/A (IC U17)

Figure 8-2 Internal block diagram

18870_300_100211.eps100305

Block diagram

CVBS / SV (8 )

Analog Front End

ADC 3D TVD 8032

Main Path (Customer) External Switches

YPbPr (2 )

VGA

ADC

ADC

ADC

HDTVD

VGAD

MDDi

PIP Path

DS

HDMIx3

Digital Path

MDDi DS

OSD

Control Signal (GPIO,...)

LVDS LVDS Tx

Merge

Gamma

Dithering

Color

Color

US

US

DSP

DR

AM

MU X


2010-Mar-12

Figure 8-3 Pin configuration

18870_301_100211.eps100305

Pinning information


2010-Mar-12

8.3 Diagram B10, TPA3101D (IC U23)


18930_301_100309.eps100309

Block diagram

Pinning information

325

2710

2512

PVCCRRINPPGNDRAGND

ACCV

CN

ETUM

PYBV

PTUO

RPTU

OL

CN

CN

NRS

BNLS

BNTU

OLNTU

ORF

LUA

TGE

RV

NW

ODT U

HSD

NG

A

CN

CSO

R

PRS

BP LS

B

PTUO

RNTU

OR

NT UOL

PTUOL

PVCCR

Exposed

RINNNCNC

NCNC

PGNDRLINPVCLAMPRLINNVCLAMPLNCPGNDLGAIN0PGNDLGAIN1PVCCLMSTR/SLVPVCCLSYNC

334

289

2611

343

298

352

307

361

316

44

17

38

23

43

18

37

24

45

16

39

22

46

15

40

21

47

14

41

20

48

13

42

19

Biasesand

References

StartupProtection

Logic

VREGok

RINP

RINN

RampGenerator

ROSC

VCCokAVCC

VREG

PWMLogic

GainControl

GainControl

LINP

LINN

SHUTDOWN

VBYP

VBYP

MSTR/SLV

PWMLogic

SYNC

AVCC

AVCCAVCC

GainControl

GAIN0GAIN1

8

T Adj.

MUTE

FAULT

VREG

AGND

VBYPVBYP

VREGVBYP

VClampGen PVCCR

GateDrive

GateDrive

VClampGen

GateDrive

Thermal

SCDetect

PVCCR

GateDrive

BSLN

VCLAMPLPVCCL

PVCCL

BSLP

LOUTN

BSRN

VCLAMPRPVCCR

PVCCR

ROUTN

BSRP

ROUTP

PGNDR

PVCCLPVCCL

PGNDL

LOUTP

Gain

Gain

Gain

Gain

TLL InputBuffer

TLL InputBuffer


2010-Mar-12

8.4 Diagram B11, TL2428MC (IC U36)


18850_305_100107.eps100223

Block diagram

Pinning information

RLV0~6P/M

OPC + ODCTCON

mini-LVDS

TFT LCD ARRAY

SourceDriver 1

SourceDriver 2

SourceDriver 5

SourceDriver 8

InternalSSIC

VST

SOE,POL2

1RxA~E

2RxA~E

1RxCLK2RxCLK

LVDSInput

Frame MemorySDRAM(16Mbit)

EEPROM(LUT)16Kbitor 32Kbit

S

C

L

S

D

A

LLV0~6P/M14

14

GateDriver

1

GateDriver

2

GateDriver

n

Gate inpanel

1

Gate inpanel

2

Gate inpanel

n

C

L

K

1

(

F

L

K

)

,

,

G

C

L

K

3

(

G

S

C

)

,

,

G

C

L

K

6

G

I

P

_

E

N

M

P

V

S

S

M

P

V

D

D

R

L

V

0

+

R

L

V

0

-

M

L

V

D

D

R

L

V

1

+

R

L

V

1

-

M

L

V

S

S

R

L

V

2

+

R

L

V

2

-

R

L

V

3

+

R

L

V

3

-

M

L

V

D

D

R

L

V

4

+

R

L

V

4

-

R

L

V

5

+

R

L

V

5

-

M

L

V

S

S

R

L

V

6

+

R

L

V

6

-

M

L

V

D

D

L

L

V

0

+

L

L

V

0

-

M

L

V

S

S

L

L

V

1

+

L

L

V

1

-

L

L

V

2

+

L

L

V

2

-

M

L

V

D

D

L

L

V

3

+

L

L

V

3

-

L

L

V

4

+

L

L

V

4

-

M

L

V

S

S

L

L

V

5

+

L

L

V

5

-

L

L

V

6

+

L

L

V

6

-

M

L

V

D

D

M

L

V

S

S

R

M

L

V

D

S

M

P

V

S

S

M

P

V

D

D

1

3

2

1

3

1

1

3

0

1

2

9

1

2

8

1

2

7

1

2

6

1

2

5

1

2

4

1

2

3

1

2

2

1

2

1

1

2

0

1

1

9

1

1

8

1

1

7

1

1

6

1

1

5

1

1

4

1

1

3

1

1

2

1

1

1

1

1

0

1

0

9

1

0

8

1

0

7

1

0

6

1

0

5

1

0

4

1

0

3

1

0

2

1

0

1

1

0

0

9

9

9

8

9

7

9

6

9

5

9

4

9

3

9

2

9

1

9

0

8

9

XIN 133 88 TESTBXOUT 134 87 TESTA

EOVDD 135 86 CGNDEOVSS 136 85 CVDDOPT_N 137 84 EEP_SIZE

H_CONV 138 83 NCEOVDD 139 82 GCLK6EOVSS 140 81 GCLK5

POL 141 80 NCSOE 142 79 NC

CVDD 143 78 OGNDCGND 144 77 OVDD

EOVDD 145 76 GCLK4(OPT_P)EOVSS 146 75 GCLK3CVDD 147 74 GCLK2CGND 148 73 GCLK1(GSP_R)EIVSS 149 72 CGNDEIVDD 150 71 CVDD

I2C_EN 151 70 VDD_EVEN(GOE)NC 152 69 VDD_ODD(GSC)WP 153 68 VST(GSP)

EOVSS 154 67 EIVSSEOVDD 155 66 EIVDD

OVDD 156 65 FLK1OGND 157 64 DPMCVDD 158 63 CGNDCGND 159 62 CVDD

WPWM 160 61 EIVSSREFMODE 161 60 EIVDD

LEDON 162 59 RESETEOVDD 163 58 EIVSSEOVSS 164 57 EIVSS

REVERSE 165 56 VCORESCVDD 166 55 TEST DCGND 167 54 TEST COVDD 168 53 OGNDOGND 169 52 OVDDEOVSS 170 51 CGNDEOVDD 171 50 CVDD

SDA 172 49 EIVDDSCL 173 48 EIVSS

DISM 174 47 ODC_BYPASSOVDD 175 46 MODE[ 1]OGND 176 45 MODE[ 0]

1 2 3 4 5 6 7 8 9

1

0

1

1

1

2

1

3

1

4

1

5

1

6

1

7

1

8

1

9

2

0

2

1

2

2

2

3

2

4

2

5

2

6

2

7

2

8

2

9

3

0

3

1

3

2

3

3

3

4

3

5

3

6

3

7

3

8

3

9

4

0

4

1

4

2

4

3

4

4

OG

ND

O V DDP W

M_ TIN

PWM

_ TO UT

OP C

_ ENCV DDCG

ND

L GN

DLVDDR1AMR1APR1 BMR1BPL VD

DR1CMR1C

PR1C

LKMR 1C

LKPLG

ND

R1 DM

R1 DPR 1 EMR1 EPR 2AMR 2 APR2BMR2BPL VDDR2C

MR2C

PR 2C

LKMR2C

LKPLG

NDR2 D

MR2 D

PR2EMR2 EPC G

ND

CV DDB IT

_SELFS ELR BFO VDDO

GND


2010-Mar-12

Personal Notes:

10000_012_090121.eps090121

Block Diagrams EN 41RAM1.0A LA 9.

2010-Mar-12

9. Block DiagramsWiring Diagram (32")

9P11

CN4

8P12

CN5

1319

1P3

1316

1P3

J6 4P

J28P12

J19P11

J1060P

J1160P

J3 6P8

8Z02

8Z01

CN2 CN1

3P J1

SSB(1150)B

MAIN POWER SUPPLYIPB PLHF-A961A(1005)

LCD DISPLAY(1004)

TO BA

CKLI

GHT

TO BA

CKLI

GHT

KEY

BOA

RD

CO

NTRO

L(11

14)

IR / LED BOARD (1112)

8561

8M20

8560

WIRING DIAGRAM 32" DALI

18930_400_100310.eps100310

HIGH VOLTAGE

Board Level Repair

Component Level RepairOnly For Authorized Workshop

J23P

J16P8

CN5 (B03C)1. +12V2. +12V3. GND14. GND15. BL ON OFF6. DIM7. Boost8. N.C.9. POK10. N.C.11. N.C.12. N.C.

CN41. N.C.2. PS ON/OFF3. GND4. GND5. GND6. +5V7. +5V8. +5V9. +12V10. GND11. N.C.

J2 (B01)1. 12VIN2. 12VIN3. GND4. GND5. BL_ON6. BL_DIM7. BL_BOOST8. N.C.9. POK10. N.C.11. N.C.12. N.C.

J1 (B01)1. N.C.2. 12VIN3. GND4. GND5. GND6. 5VIN7. 5VIN8. 5VIN.9. 12VIN10. GND11. N.C.

J6 (B10)1. L+2. L-3. R-4. R+

J3 (B06)1. ADIN32. GND3. IR4. LED25. 5VSB6. LED17. ADIN08. 5VSW

J11 (B11)1. GND| 36. 3V3TC37. 3V3TC38. GND39. H_VDD40. H_VDD41. 16VTC42. 16VTC|60. GND

J10 (B11)1. GND| 19. 16VTC20. 16VTC21. H_VDD22. H_VDD23. GND24. 3V3TC25. 3V3TC|60. GND

MAINS CORD8191

LOUDSPEAKER RIGHT(5213)


USB

SVH

S

TUN

ER

HD

MI

HD

MI

VG

A

SHIELDING

CN1

EN 42RAM1.0A LA 9.Block Diagrams

2010-Mar-12

Wiring Diagram (42")

9P11

CN4

8P12

CN5

CN2

1P3

CN3

1P3

J6 4P

J28P12

J19P11

J1060P

J1160P

J3 8P

8Z01

8Z02

CN2 CN1

4P J1

SSB(1150)B

MAIN POWER SUPPLYIPB PLHF-A962A (1005)

LCD DISPLAY (1004)

TO BA

CKLI

GHT

TO BA

CKLI

GHT

MAI

NS

CORD

KEY

BOA

RD

CO

NTRO

L(11

14)

IR / LED BOARD (1112)

8561

8126

8560

WIRING DIAGRAM 42" DALI

18930_401_100310.eps100310

CN5 (B03C)1. +12V2. +12V3. GND14. GND15. BL ON OFF6. DIM7. Boost8. N.C.9. POK10. N.C.11. N.C.12. N.C.

CN41. N.C.2. PS ON/OFF3. GND4. GND5. GND6. +5V7. +5V8. +5V9. +12V10. GND11. N.C.

J2 (B01)1. 12VIN2. 12VIN3. GND4. GND5. BL_ON6. BL_DIM7. BL_BOOST8. N.C.9. POK10. N.C.11. N.C.12. N.C.

J1 (B01)1. N.C.2. 12VIN3. GND4. GND5. GND6. 5VIN7. 5VIN8. 5VIN.9. 12VIN10. GND11. N.C.

J6 (B10)1. L+2. L-3. R-4. R+

J3 (B06)1. ADIN32. GND3. IR4. LED25. 5VSB6. LED17. ADIN08. 5VSW

HIGH VOLTAGE

Board Level Repair

Component Level RepairOnly For Authorized Workshop

USB

SVH

S

TUN

ER

HD

MI

HD

MI

VG

A

J24P

J18P



8126

SHIELDING

CN1

8191

J11 (B11)1. GND| 36. 3V3TC37. 3V3TC38. GND39. H_VDD40. H_VDD41. 16VTC42. 16VTC|60. GND

J10 (B11)1. GND| 19. 16VTC20. 16VTC21. H_VDD22. H_VDD23. GND24. 3V3TC25. 3V3TC|60. GND

Block Diagrams EN 43RAM1.0A LA 9.

2010-Mar-12

Block Diagram

18930_402_100311.eps100311

M AINP OW E RS UP P LY BLOCK

LCD PANEL (1920 1080 )

S ca ler ch ipMTK

MT8222AMMU for FHD

Ana logTuner

12 V D C

M ini-LVDS

P/I boa rd

5 V D C

DDR2 256Mb 2NT5TU32M 16 CG-25C

A udio A mpC lass-D

(T PA 3101D 2)D C/DC

conversion

M a in boa rd

BL boost

POK

PWM

BL on/off

Co

mp

osite

S-V

ide

o

HD

MI2

L R

CV

BS

Aud

io o

ut

SPI FLASH (4MB)MX25L3205DM

3V3

EDIDEDIDEDID

1V81V2

Power

Analogue Audio

Video &control signal

5V

5V0

IF

R /L

H/P

out

(Op

tional)

S A WFilter

S A WFilter

IF DecoderTD A 9885CVBS

S IF VIF

S IF

D-S

UB

Co

mp

on

ent

B /L IN V E R TE R

DUSB

-SU

B

Audio

in

Co

mp

on

ent

Aud

io in

Co

mp

osite

S-V

ide

oA

udio

in

X1X2

X1

TCO NTL2428MC

HD

MI1

EEPRO M24C04

EEPRO M24C32

KEY PAD I.R. REC EIVER

Audio sw itchHEF4052

EN 44RAM1.0A LA 10.Circuit Diagrams and PWB Layouts

2010-Mar-12

10. Circuit Diagrams and PWB LayoutsPower Supply Unit 32"

18930_560_100315.eps100315

32" Power Supply UnitA01 A01

2010-02-10

PLHC-A961A32" PSU

!

!

!

!

!

!

!

! !

!

!

!

!

!

!

!

!

!

!

!

!

!

!

!

!

!

!

NeutralLive

3V3 stdbyStandbyGND

GNDGND

DIMBL_ON_OFF

NCBoost

5V5V

GND

5V

12V

NC

+12V+12V

GND1GND1

POKNCNCNC

COLD

COLD

85

10

9

6

2

1

7

4

HOTCOLD

:

Current F/B

LED Block:

I_Down

I_Up

FreqUpFreq

Up

CX1020.68uF/275V

C6010.47UF/500V

1

2AC1

3AC2

4

BD601RS205M

12CN1(1308)AC-inlet

F101T3.15AH 250V

C607

47uF/450V/WL

TH1013ohm 15D

1

2

3

4

LF101CV335022SS

1

2

3

4

LF102SQE2020

CX1010.22uF/275V

D6011N5397

R619

680K

/201

2

R603

3.3K

C605

102

C606

102

C604

473

C602104

C603

104/

2012 R6

20

56K/

2012

R60533K

R604

10K

R6130.36/2W

R6152M/2012

R610

10K

S

G

D

Q602TK5P50D

R609100/2012

R60810/2012

D6031N4148W 1

2

3

4

5

6

7

8

9

10

11

CN4(1M95)

1

2

3

4

5

6

7

8

9

10

11

12

CN5(1M99)

CY10

110

0pF

CY10

210

0pF

CY103

330pF/250V

CY104

330pF/250V

D602

SUR460

R6162M/2012

R6172M/2012

R6182M/2012

C6085pF

VA101TVR14621KSY

R101

120/

1W

s

SA10

1

TSA6

01M

A1

C610

470p

F/1K

V

GND_PFC

GND_BD601

1

2

3

4

LF103SQE2020

3 25 14

6 7 8 9 10

L601EE2020

13

FH101FB58 FUSE HOLDER

1FB

2CT

3CT

RL4

CS5

ZCD

6G

ND

7D

RV

8VC

C

U60

1

SCY99102

C609

102

C607A10nF/1kV

1DRAIN

2

GND

3VCC4 VFB

5 SYNC

6 VSTR

U101FSQ0465R

C1022.2nF/630V

R10347K/3W

D101UF4007

R10836K

R10712K

C109474

C107

105/

2012

ZD1037.5V

U201KIA431A

R210100K

C211104

R20851

1

23

4

PC101EL817MCDT R209560

R211240R

R2122.7K

R2132.4K

R10447K/3W

C10856pF

R214100R

1

23

4

PC102

EL817MCDT

R1092.2K

ZD10216V

Q101KST2222AR110

10K R215470

R10510-1/2W fusible

D102UF4007

C10547uF/50V/MK

R1061K/2012

C10422uF/50V/WL

D1031N4148W

C212104

Q203KST2222A

R216220K

D104NC

R101A100K/1W

C10110nF/1kV

D202MBR20100CT

C207470pF/1KV

R20724/1W

C2082200uF/10V/WL

C210470uF/10V/MK

T201EE2821

C2021000uF/25V/WB

L2010.6UH

C205470uF/25V/MK

C2092200uF/10V/WL

C2031000uF/25V/WB

Q201FQPF13N06

D220US1J C220

10uF/50V/WL U202KIA431BM

R2259.1K/2012R2261.6K/2012

R2272.7K/2012

R224180R

R221100K

R22220K

ZD22015V

C221104R220

33/3216

E

B

C

Q220KST2222A

C222 104

R228100K

E

B

C

Q221KST2222A

C223104

R22

922

0K

R230100K

R2310R0

R219150K

R23391K

R238100K/2012

CY201680pF/250V

D2221N4148W

D221

1N4148W

R2411K

1

2 3

4

PC103

EL817MCDT

ZD10

4

18V

R1115.6K

R50

227

0K/2

012

R50

327

0K/2

012

R50

427

0K/2

012

R50556K

R50610K

D5021N4148W

ZD501NC

C502NC

R50782K

S

G

D

Q5012N7002A

C503101

S

G

D

Q5032N7002A

R508560K

S

G

DQ504

2N7002A

R50

124

0K/2

012

S

G

DQ502

2N7002A

R509100K

C504105/2012C501

1uF/50V/WL

D501UF4007

R5104.7K

D503NC

C505105/2012

Q130KST2907A

Q131

KST2

222A

ZD13024V

R1332.2K

C131104

R1302.2K

C130104

R1310R0 R132

0R0

D201SB3200

D203SB3200

R2174.7K

R20124/1W

C201470pF/1KV

C206225/2012 25V

L10.6UH

R72310K

R756680

ZD70324V

Q708

TK5P

50D

D7531N4148W

R70768

1

10

7

6

5

4

T701

UU2758

ZD70724V

R71010K

R752680

ZD70124V

D7511N4148W

R70168

ZD70524V

R72610K

R762680

ZD70424V

D7571N4148W

R71168

ZD70824V

R71310K

R759680

ZD70224V

D7551N4148W

R70468

ZD70624V

Q706

TK5P

50D

Q709

TK5P

50D

Q707

TK5P

50D

C40654pF/6.3KV

C404103

1

CN2

B03B PASK 1

1

CN3

B03B PASK 1

C405N.C

C40154pF/6.3KV

C402103

C403N.C

A

C

AC

D403BAV99

A

C

AC

D404

BAV99

R4254.7K

R4263K

C426225

S

G

D

Q4312N7002A

R42330K

R42415K

C423104

R426A1M

D4261N4148W

KA

D431LTST-C930TBKT-LG

S

G

D

Q4322N7002A

R4342.2M

C435225/2012

D4341N4148W

D4301N4148W

R435180R/2012

R432180R/2012

R436180R/2012

R437180R/2012

4

1

5

6

7

8

T702

UU1116

4

1

5

6

7

8

T703

UU1116

C431105/25V/2012

C430105/25V/2012

R4676.2K

C419102

L490100uH/2012

D491

1N4148W

C490102 R491

9.1KR49030K

C491102

R490A330D492

1N4148W

S

G

D

Q410KST2222A

R4941K

R49947K

R499A0R0

C492473

B

EC

Q411KST2907A

R4960R0

A

C

AC

D402BAV99

A

C

AC

D401BAV99

E

BC Q418

KST2222A

C409103

C410103

R4061M

1 VCC

2 ENA

3 VREF

4 UVLS

5 PWM

6 NC

7 STATUS

8 GNDA

9 CT

10 RT1 11PROT

12VSEN

13ISEN

14SSTCMP

15TIMER

16GNDP

17LDR2

18HDR2

19HDR1

20LDR1

U401OZ9977B_1

R408S27K

R415470K

R431A20K

R4312K

R42010K

R480100K

R420A200K R4293.6K

R42

7

10K

R4122R2/2012

C431A103

C413104/50VC420A103

C412105/2012

C412A105/2012

C418473 C418A

223

C415475/2012

C411105/2012

C407104

Q4672N7002A

R467B1M

C467225/2012

D4671N4148W

R467A10K

R467C0R0

R4080R0

R405120K

R410120K

R4110R0

R414120K

R413120K

D4051N4148W

D4061N4148W

R4011M

R409220K

C4082.2uF

S

G

D

Q4022N7002A

D4131N4148W

S

G

D

Q402A2N7002A

C408A2.2uF

R409B4.7K

C700

105/

50V/

3216

C701

105/

50V/

3216

C702

105/

50V/

3216

C703

105/

50V/

3216

C704

105/

50V/

3216

C705

105/

50V/

3216

C706

105/

50V/

3216

C707

105/

50V/

3216

R44147R 2012

R44247R 2012

R44347R 2012

R44447R 2012

R44547R 2012R446

47R 2012

R44747R 2012

R44847R 2012

R44947R 2012

R45347R 2012

R45447R 2012

R45547R 2012

R45647R 2012

R45747R 2012

R45847R 2012

R43847R 2012

R43947R 2012

R44047R 2012

R417A2.7K

R41768K

R418C0R0

R418ENC

R418D300

R418F820R

R418820R

R418G300R

R417B0R0

R417CNC

R4021M

R421A3.9K

R42120K

R408F82K

R408ENCR408C

0R0

R408D9.1K

R408A0R0

R408B180K

C421181/COG

C421A221/COG

C421B271/COG

R23210k

FB601

BFS3550A

C103100pF/1kV

R102

750K/1W

C206A225/2012 25V

FB606BFS3550R

FB607BFD3565R

CY105100pF/250V

CY202220pF/250V

FB201BFD3565R

CY203220pF/250V

C110100pF/1KV

FB60

5BF

S355

0A

FB60

8BF

S355

0A

C611

47uF/450V/WL

R10

4A47

K/3W

R506A10K

FB102

BFS3550A

FB101

BFS3550A

FB10

3BF

D35

65R

FB10

4BF

D35

65R

VCC

ST3V3

STANDBY

ADIM

DIM

INV_ON/OFF

STATUS

HOT_GND

PFC-OUTPUT

12V

5V

VCC

+5V

+12V

+5V

5VS

DRIVE

DRIVE

5VS

OVP

AC_DET STANDBY

HOT_GNDHOT_GND

HS2HS1

1GH2GH

1GL2GL

ISEN

VREFIM

STATUS

VREF+12V

HG2

HS2

HG1

HS1

LG1

LG2

LDR1

HDR1

HDR2

LDR2

IM

IS

UVLS

SSTCMP

VREF

12V

LDR1

HDR1

HDR2

LDR2

INV_ON/OFF

VREF

UVLS

DIM

CTISEN

VREF

DIM1

PROTVREF

PROT

DIS-ARC

12V

ENA

DIS-ARC

COLD_GND COLD_

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