Service Engineer training

• Osteosys Co., Ltd.

Index

1. Introduction 2. General information of device3. Interior / exterior part’s names and interior module4. Installation and operation (DEMO)

1) User program’s installation (DEMO)2) Test program (DEMO)3) PACS, OCS (DEMO)4) Daily test (DEMO)5) Measurement and analysis (DEMO)6) Patient’s data back up and import (DEMO)

5. A/S repairing1) Indicator’s explanation of module 2) Power error (when power is not on)3) Movement error 4) X-RAY exposure error

6. Firmware Download method7. Module exchanging method8. Alignment method9. Calibration method

Index

Q: Osteoporosis?

A: Is a disease of bone that leads to increased risk of fracture.

In osteoporosis the bone mineral density (BMD) is reduced, bone microarchitecture is disrupted, and the amount and variety of pro-teins in bone is altered.

Normal Osteoporosis

1. Introduction

Q: Patient’s mortality risk in with femoral fractures?

A: 12~20% of femoral fractures’ patient died within 6 months and 20~25% of patient have a possibility to pass way with a complica-tion.

Spine fracture Femur fracture

1. Introduction

Q: The fragile parts of body to fractureA:

1. Forearm2. Spine3. Femur

DEXXUM T is the best system to measure

the Bone Mineral Density (BMD) for forearm, spine and femur

with low dose exposure of X-ray.

1. Introduction

2. General information of device

<DEXXUM T>- X-ray system : DEXA (Dual Energy X-ray Absorptiometry)- Scanning method : Pencil beam

Detector

BED

AC InletEthernet port

Main SW

Emergency SW

Bed

Wing Bed

Curtain Film

Caster

Control panel

2. General information (Exterior)

Carriage Top Cover

Carriage Bottom Cover

Column Front Cover

Column Rear Cover

Left SideCover

BackCover

Front CoverRight SideCover

Right wingCoverLeft wing

Cover

2. General information (Exterior)

1. Carriage2. Generator (HFG)3. Main board4. Power board5. Motor driver for Y axis

23 4

5

6

98

7

16. Motor driver for X axis7. MDF 8. Motor Y axis9. DEXXUM T

2. Interior / exterior part’s names and interior mod-ule

DEXXUM T Block sketch

1) User program installation2) Data base installation (Daily test)3) Data base setting

4. Installation and operation (DEMO)

DEXXUM T user program scanning process

Program start Measure

Daily test error is-

sue?

Daily test process/ Finish

Insert (regis-ter) correctly

Patient in-formation?

Register Patient and se-lect measurement

Standard axis moving and wait the instruction

Selected scan area?

Laser pointer ONUser panel using

Position select

Moved to standard

axis?

Start to scan

Can select reposition se-

lection?

Finished scanning?

Start to analysis

Yes

Yes Yes

Yes

Yes

No

Yes

No

No

No

No

No

1) Network connection2) Modification kV, mA3) Modification for sampling time4) Get count5) Get spectrum6) Get temperature7) Using scan mode8) Using user operation switch9) Shutter test

4. Test program

1) PC setting to connect PACS (LAN CARD)2) Method to connect PACS3) OSC connection

5. PACS interlock

1) Instruction of Indicator Power Module Indicator SMPS Indicator Power Board Indicator Main Board Indicator X-ray Generator Indicator

2) Repair power error

3) Repair device movement’s error

4) Repair X-ray Generator’s error

6. A/S repairing

1) Instruction of indicator – Power Module

Power board

SMPS

Power module is composed Power board(DC/DC) and SMPS(AC/DC).

MainBoard

MotorDrive

r

EmergencySwitch

Insert AC

6. A/S repairing

(((((((AC L

AC N

When is insert AC power, LED1’s ONSMPS must be always ON.

2) Instruction of indicator – SMPS

6. A/S repairing

X X X X X X X X

O X X X X X X X

O X O O O O O O

O X O O O O O O

O O O O O O O O

O O O O O O O O

No 1 2 3 4 5 6 7 8

descrip-tion

DC Re-lay ON

Genera-tor ON

Motor(A)

Motor(T)

-15V +15V +5V SMPS ON

No 9 10 11 12 13 14 15 16

descrip-tion

24V Re-lay In

Genera-tor ON

Motor(A)

(FUSE)

Motor(T)

(FUSE)

_15V(FUSE

)

+15V(FUSE

)

+5V (FUSE

)

SMPS ON

If is ON, only Main Switch

If is ON, Main Switch and Emergency Switch

If is ON, Main Switch and Emergency Switch, also Main board ON

3) Instruction of indicator – Power board

6. A/S repairing

Ethernet Indicator

WD1 When Link with PC

WD2 When connect by 100M bps

Main board 7-segment indicator (reverse)

7S

Description 7S Description

0 Done for initial 6 Saving location’ informa-tion

1 Laser pointer ON 7 Movement to TOP direc-tion

2 Collect Spectrum data 8 Movement Bottom direc-tion

3 Collect Count data 9 Movement Left direction

4 Scan moving a Movement Right direc-tion

5 Initialing b Automatic scan mode

TopBottom

Right

Left

1

2

Main board has 7 segment indicators for Main board’s movement and indicator’s Ethernet network connection.

4) Instruction of indicator – Main board

6. A/S repairing

X-ray Generator Indicator

ON/OFF Ready state

ON X-ray Shot state

Selectable Switch selection use

115 88VAC ~ 130VAC, 45Hz ~65Hz

230 176VAC ~ 264VAC , 45Hz ~ 65Hz

X-ray Generator’s indicator is OFF even power is connected, check inserted AC and then open cover, check Drive board is moving.

5) Instruction of indicator – X-ray Generator

6. A/S repairing

Power error’s reason

1. Main switch or emergency switch is OFF

2. Fuse destruction’s case, when input the excess current into device

3. Power supply error (Wall power error)

4. Destruction of main switch or destruction of emergency switch

5. Output of terminal in AC power path or disconnection of cable

6. SMPS of power board’s error

7. Main board’s error

6) Instruction of indicator – Power error

6. A/S repairing

1. Check the main board and emergency switch is ON.

2. Check Fuse state with the naked eyes and multi meter.

Ω

6) Instruction of indicator – Power error

6. A/S repairing

3. Check the Wall Power.

4. Remove the outlet from device, and switch’ state.

Ω

Switch

ON OFF

1 pole 0 Ω - Ω

2 pole 0 Ω - Ω

Main switch1pole 2pole

Back View

Switch

ON OFF

1 pole 0 Ω - Ω

ON

6) Instruction of indicator – Power error

6. A/S repairing

5. Check AC power path.

1

2 3

4

4

5

NO Descreption

1 Ielet(N,L)

2 Noise Filter

3 Main Switch

4 Inner Inlet

5 Terminal Block4

6) Instruction of indicator – Power error

6. A/S repairing

Disconnect the main board and HFG’s power board and power ON.If it approved till connector’s block 220V, but not to SMPS’ indicator and then exchange

SMPS.

When Power enter, do connect the separated main board.When is no error, do connect HFG.

6. Check the SMPS

6. Check the main board and HFG’s state.

6) Instruction of indicator – Power error

6. A/S repairing

The kind of movement’s error

1. No image from selected area and scanning other area.

2. Do not stop with noise when device goes to initial position.

3. The device do not move.

4. It’s very noisy when the device moves.

7) Movement’s error

6. A/S repairing

1. Do not appear the selected scan area and appear unselected area image.

2. Do not stop with noise when the device is initialing.

1) Check the User manual.2) Check the alignment’s Laser pointer.3) Check the alignment’s between X-ray Generator and Detector.

1) Check the Limit Switch damage and Cable 2) Check the Limit Block’s location

7) Movement’s error

6. A/S repairing

3. The device does not move.

1) Check the power state of Motor Driver2) When does not supply power, check the Power Board Indicator and

power.3) Check the Cable’s disconnection state.4) Check the main module’s movement state and network’s connection

state.

2. The device’s movement is very noisy.

1) Check the interior of device if is other strange substance.2) Check the Cover’s fixed state.3) Check the Main-board ~ Motor ~ Motor Driver Cable’s state.

7) Movement’s error

6. A/S repairing

The kind of X-ray exposure’s error

1. Generator power’s error issue(B-031, B-041 )

2. Generator movement’s error issue (B-011,B-012, B-018)

3. No find the X-ray Indicators error, but there is no detection from Detector.

7) Movement’s error- X-ray’s error code

6. A/S repairing

1. Generator’s power Error.

1) Check with naked eyes the Generator’s Indicator, to estimate the power’s approve.

2) Check the AC power is insert to Generator.3) Check the Fuse state, opening the Cover.4) Measure the CON3 to DC, and then check the results is

350~400VDC, when is no output, exchange the main power board.

CON3AC Power

7) Movement’s error- X-ray’s error code

6. A/S repairing

3. The is no Indicator’s error, but detection in Detector

1) Check the real exposure doing scintillator on X-ray shutter in Get count state of TEST Program. Exchange the detector the count’s results even the exposure has no problem.

2. Generator error code

1) Exchange the Generator for errors of KV, mA, filament Feedback.2) B-011 error code, check the real exposure doing scintilllator on

X-ray shutter in Get count state of TEST Program. Exchange the detector the count’s results even the exposure has no problem..

Sintillator shows the green colour when X-ray Energy touch.

7) Movement’s error- X-ray’s error code

6. A/S repairing

<DEMO>

7. Firmware Download method

8. Module exchanging method

<DEMO>

1) Exchange Main board2) Exchange Power board3) Exchange Film 4) Exchange Detector5) Exchange X-Ray Generator

<DEMO >

1) Camera-Jig’s installation method

2) Exchange X-Ray Generator’s method

3) Alignment method

4) Alignment method using Scintillator

9. Alignment method

10. Calibration method

<DEMO >

1) Phantom’s name

2) Calibration method

3) Correction using Reference Phantom

4) Daily TEST