midi controller manual 22

8/9/2019 Midi Controller Manual 22

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RECORD

&

MIDI CONTROLLER

INSTALLATION MANUAL

FOR GRAND PIANOS

PianoDisc


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PianoDisc

Record & MIDI Controller

Installation Guide for Grand Pianos

Version 5.0 June, 2004

4111 North Freeway Blvd.

Sacramento, CA 95834Phone 800.566.3472 Fax 916.567.1941

www.PianoDisc.Com

2002 by PianoDisc and Burgett, Inc. All Rights ReservedPianoDisc and Burgett, Inc. reserve the right to change product


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Table of Contents

Introduction I

Illustration list II

Tools Needed 1

Step 1 Remove the action from the piano 1

Step 2 Modular sensor strip assembly 1

Step 3 Modular sensor strip installation 4

Step 4 Keyframe modification 5

Step 4 Sensor strip adapter board installation 6

Step 5 Pedal sensor installation 7

Step 6 Pedal adapter board installation 9

Step 7 Record board installation 9

Step 8 Testing the system 10

Appendix A 11

Parts List 12,13


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IntroductionWhat is the function of the Record System?

The Record System is connected to the PianoDisc Player System for record/playback capability. TheRecord System generates MIDI information and is recorded on to a diskette or to the MX library.

What is the function of a MIDI Controller?

A MIDI controller allows your piano to interface with any MIDI sound generator module. You can use

this add on option to record a musical performance. After recording a performance the music can be sentto a computer for editing. Then once the music is edited it can be printed.

What does the Record or MIDI Controller consist of?

The Record or MIDI Controller consists of two remarkable components: 1. A TFT sensor strip

2. A record board

This is how it works..

TFT is defined by PianoDisc as Touch Film Technology. It is a piezo electric configuration. It is carbonfilm encased in plastic. When a key is depressed a voltage is created. The voltage is converted to MIDI

information. The MIDI information is data that when coupled with a sound module can generate sounds,

or be sent to a computer for the purpose of editing. The system scans each sensor 961 times per second.It can create up to 127 different velocity levels. Four modular sections are coupled and located under the

keys.

Intention of this manual..

This installation manual will guide you though the process of fitting the PianoDisc Record or MIDI Con-troller on virtually any grand piano. Along with any training seminar you might attend, this guide should

be an invaluable resource.

PianoDisc encourages technicians to comment on this installation manual by contacting us at the address

listed on the previous page.

Technical assistance is available Monday through Friday 8 AM to 5 PM Pacific time.Phone: 1 (800) 566-3472


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FCC Information

CAUTION: CHANGES OR MODIFICATIONS NOT EXPRESSLY

APPROVED BY THE PARTY RESPONSIBLE FOR COMPLIANCE COULD

VOID THE USERS AUTHORITY TO OPERATE THE EQUIPMENT.

NOTE: This system, when in operation, can develop radio frequency energy which can

cause harmful interference to radio communication unless the equipment is installed and

used in strict accordance with manual instructions. This equipment has been tested andfound to comply with the limits for a Class B digital device, pursuant to part 15 of the FCC

rules, which provide reasonable protection against such interference.

If the equipment does cause harmful interference to radio or television reception, which canbe determined by turning the equipment on and off, the user is encouraged to try to correct

the interference by one or more of the following measures:

Reorient or relocate the receiving antenna.

Increase the separation between the equipment and the receiver.

Connect the equipment into an outlet on a separate circuit from that of the receiver.

Consult PianoDisc, or an experienced radio/TV technician for help.

The user may find the following booklet prepared by the Federal Communications

Commission helpful:

How to Identify and Resolve Radio-TV Interference Problems.

This booklet is available from the US Government Printing Office, Washington, DC 20402


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Tools Needed

The following tools will be necessary to install the MIDI Controller System.

A. Phillips screwdriver #1 and #2

B. Cordless drillC. Magnetic bit holder

D. #1 Phillips bit (for bit holder)E. 1/4 Magnetic bit

F. Felt pen marker (fine tip)

G. 4 steel rulerH. 1 hole saw or spade drill bit

Step 1 Remove Action From Piano

A. Remove the fall board and store it in a safe place.

B. Remove the action from the piano.

C. Remove the stack from the keyframe and keep track of where the screws belong.

This can be done easily by placing them into a piece of card board.

Step 2 Modular Sensor Strip Assembly

A. Remove all the keys from the keyframe.

B. Remove the 4 modular sensor sections and the rail straps (in baggie) from the box. Notice the rail

straps have 4 holes each. These straps connect the 4 sensor sections together.

C. Take 3 sensor sections and attach one rail strap to the right side of each section. (See figure 1)

Care must be taken to avoid damage to the TFT fingers. Scratches or breakage in

the TFT film may cause failure.

Caution

1

Figure 1


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D. Place a 4 steel ruler on the keyframe between the front rail and the balance rail to support the 4 sensorsections.

E. Place the 4 sensor sections on the steel ruler using keys 2, 22, 44, 66, 87 as a guide for the best spacingpossible. First, make sure that the sensor sections are straight. Maintain 1/16 clearance from the sen-sor finger to the sharp front punching, when the sensor finger is depressed. (See figure 2)

F. Space the sections by looking for equal distance between the keys and the adjacent sensor

finger. (See figure 3 and 4)

G. Using a felt tip marker, place a locating mark across the rail strap and the sensor sections that are notattached. (See figure 5)

H While the senor strip is in the correct location on the keyframe, mark the mounting bracket locations onthe sensor strip. The L shaped mounting brackets attach to the U channel on the sides of the sensor

strip. The mounting brackets will be attached to the keyframe wood slates. It may be only possible to

use 3 mounting brackets because of a connecting strap.

Figure 2

Equal spacing

Figure 4 Figure 5

2

Figure 3

NOTE:

Always place the mounting brackets on the rear side of the sensor

strip if raising of the keyframe is necessary.


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Now remove the sensor sections from the keyframe and place the sections in the sensor jig.(See Figure 7). For making a sensor jig, refer to appendix A.

I. Re-align the locating marks made in step G. Attach the three rail straps on that side. (See

figure 6)

J. Rotate the jig 180 degrees and attach the remaining three rail straps.

K. Locate 3 short white flat ribbon cables in the kit. These cables connect the sensor sectionstogether. The plug sockets on each sensor section have locking tabs that pull out to

unlock. Place a white ribbon cable in each socket with the metal side facing up. Push thelocking tabs in together to secure the cable into position. At key 88, attach the longer

white ribbon cable (metal side up) which will be attached to the adapter board later.

Note

To make a good connection, it is important that the locking tabs are

completely pushed into place.

Note

In the case of a close clearance between the sensor sections, the rib-

bon cable should be installed before the sensor sections are attachedto keep from damaging the cable.

Figure 7Figure 6

3


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Modular Sensor Strip Installation

A. Place the sensor strip assembly on the keyframe, space

the sensor strip side to side using keys 2, 22, 44, 66,

and 87. The front of the finger should clear the frontfelt punching by 1/16 (1.5 mm) when depressed.

B. With a sharp note depressed, check for 3 to 4 mm clear-ance from the bottom of the key to the aluminum extrusion.

C. If it is necessary to raise the sensor strip, double sided tape isprovided in the kit. If a thicker spacer is necessary, use wood

shim stock and silicone as an adhesive. Always place thespacer material on the front edge of the sensor strip.

D. Attach the sensor strip to the keyframe with the screws provided in the kit. (See figure 10)

E. Locate the long white ribbon cable in the record kit. Place one end of the cable into the record

strip plug at key 88. (Metal side up and lock the tabs) Now, fold the ribbon cable back towardsthe rear of the keyframe. Next, just past the hold down stick, fold the ribbon cable to the right

and use a plastic clamp to secure the cable to the keyframe. (See figure 12) Run the cable up between key 88 and the keyframe to the adapter board. Secure the white ribbon cable to the key

frame with double sided tape.

Double sided

tape securingcable to the

keyframe.

Cable clamp securingthe ribbon cable to the

Keyframe.

4

Figure 10

Sharp note depressed, maintain

3-4 mm of clearance betweenthe bottom and the key and the

record strip.

Figure 12Figure 11

NOTE:

If there is not enough clearance for the sensor strip, refer to the Keyframe Modification.


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Keyframe Modification

A. If there is not enough clearance, wood must be removed from the keyframe. Outline the location

to be cut. There are different ways of removing material from the keyframe. This can be accom-

plish by one of several options:

1. A Medallion planer used with a drill press provides a good clean cut. (See Figure 8 & 9)

The Medallion planer is available is most hardware stores. It is made by P& R tools, P.O

Box 606, Sand Springs, Ok., Ph. # 918-245-8720. A special wooden table, ( 2 x 5), wouldneed to constructed. (See Appendix B) This wooden table would attach to the drill press

table for supporting the keyframe.

2. A Roto Zip tool can be used as a router to cut out the wood, but it is not possible to get

close enough to the balance and front rails. Support the keyframe and finish the cutwith a sharp chisel and hammer. Remember to support the bottom of the keyframe.

3. Another method is to use a cross cut saw and cut across each slat of wood the

amount to be removed. Support the bottom of the keyframe, and use a sharp chisel

to remove the wood. Sand the cut area with 100 grit sand paper to remove sliver andsmooth surfaces.

5

Figure 8 Figure 9


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Step 4 Sensor Strip Adapter Board Installation

A. Hold the adapter board on the front vertical edge of the hammer flange rail, approxi-

mately 2 from the treble end of the stack and mark this location for mounting. (See Fig-ure 11) On pianos where the hammer flange cannot be used, as in Steinway and Mason &

Hamlin, attach the adapter board to the letoff rail. (See figure 12) Be sure to place the

mounting screws between the letoff screws.

B. Drill a 7/64 (2.5 mm) hole for the adapter board mounting screws. Mount the adapter

board with screws and spacers provided in the kit. Place the 12 white flat ribbon cable be-tween the stack and the adapter board, plug the cable into the treble plug with the metal part

of the cable facing out. Slide the locking tabs down to secure the cable in position. (SeeFigure 12)

The large connector (gray cable plug) faces down for easy access. (See Figures below)

Note

The adapter board is normally attached to the stack on the treble side. In the

event there is a problem of clearance side. This means that the bass connectorposition on the adapter board will be used instead of the treble.

Note

6

Locking tabs

Figure 11 Figure 12


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Step 5 Pedal Sensor Installation

A. The sustain pedal switch is always placed on the treble side of the damper tray. This is theideal position for the switch. In most cases it is attached to the belly rail. (See figure 13)

In some pianos, the damper support block will not allow attaching the bracket to the bellyrail. In this case, glue a block of wood (2x 2x 1 thick) to the keybed to mount the

bracket to. (See Figure 14)

B. Remove the pedal switch from the bag. There is a circle of holes on the L bracket toaccommodate different angles of position.

C. Assemble the switch to the bracket and attach the assembly to the belly rail. The switch isnormally closed, which means when the contacts are touching the switch is off.

D. Glue a piece of buck skin on the damper tray between the damper tray and the switch.

The MIDI Controller sostenoto and soft pedal switches are usually placed on the trap work

under the keybed. Locate and mount in a place out of sight, if possible. These two switchesare identical to the sustain switch and also normally closed.

Only use buckskin leather between the pedal record switch and dampertray. If felt is used, in time it will make a squeaky noise.

Note

There are three pedal sensors; sustain, sostenoto, and soft. The sostenotoand soft pedal sensors are only used on the MIDI Controller system.

Note

7

Figure 14Figure 13

Buckskin

betweenswitch and

damper

tray


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F. Drill a 1 access hole thru the belly rail on the treble side. (See Figure 15) Route thecables in thru the hole in the belly rail.

If you have a shift lever that is recessed in the keybed, like Petrof, it is difficult tocontact the lever under the piano. In this case, place the switch inside the action

cavity on the left/rear side mounted to the keybed. So when the action shifts over,the contacts will open. Mount the switch towards the rear so when the action is

pushed into place, the action will contact the switch and close the contacts. Theswitch is normally off. (See Figure 14)

Note

Figure 14

Soft pedal sensor switch

8

Figure 15

Drilling access

hole thru the

belly rail toto route cables.


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Pedal Adapter Board Installation (MIDI Controller only)

A. Locate the pedal adapter board in the kit. Mount the pedal adapter board to the belly rail

open area at the treble end. (See Figure 16) There are 2 screws and spacers provided in the kit.Plug in the three pedal switches to the appropriate pins on the adapter board. The board is la-

beled for each pedal location. Tie up the excess cable neatly.

Step 6 Record Board Installation

The record board for the player system is mounted in the solenoid rail cover. (See figure 17)

The record board for the MIDI controller has its own box which should be mounted in an accessible

location. Locate the mounting screws and mount on the right or left side under the keybed. (See figure18) Neatly clamp the wires in place.

Figure 17 Figure 18

9

Pedal adapter boardFigure 16


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Step 7 Testing The System

A. Adjust each pedal switch so the contacts open just as soon as the pedal is slightly moved. There are3 pedal LEDs and a key note LED on the record board which are normally on when the power is

on. When the pedal is depressed, the LED will go off. This means it is sending information. Use

the LEDs to aid in set up of the pedal switches.

B. Play all keys while observing the key note LED on the record board to verify all notes are workingproperly. (Note that the LED light will blink off when a finger is depressed.)

C. If any notes do not work, check the cable connections or re-plug connectors so they make goodcontact.

NOTE: Make sure all locking tabs are in the locked position. The tabs clamp the cable to the plugproviding a good connection.

10


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Sensor Strip alignment Jig

11

APPENDIX A

Sensor Strip Jig

Materials List

1. 1/2 x 6 x 50 Plywood or Particle Board2. 8 Pieces of Wood, 1/4 x 1/2 x 5

3. 16 - No. 4 Countersink Screws x 3/44. Wood Glue

5. 1/8 Drill Bit6. Countersink Bit

Assembly Instructions

1. Assemble your first sensor strip as straight

as possible by line of sight.

2. Place the sensor strip on 1/2 x 6 x 50 piece

of wood. Use plywood or particle board.Center the sensor strip to the wood.

3. Drill two 1/8 holes into each of the 8 pieces of

wood, 1/4 x 1/2 x 5. Then drill a countersink for the screw head.

4. Place the 8 pieces of wood on the sides of the

sensor strip. Four on each side equally spaced.

5. Glue and screw the 8 pieces of wood againstthe sides of the sensor strip. (See Figure)


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Parts List

Part Number Description Quantity

MIDICONTROLKIT

0810-15112 POWER SUPPLY, DC, 9V 1 AMP, 110V 11700-12181 CABLE, 5 PIN MIDI, 10FT, RIGHT 1

3150-11000 QT TFT MODULAR RECORD W/O CB 1

0600-12201 CAP, ON/OFF BLACK SWITCH 1

TFTMODREC

TFTRECMAIN TFTRECORD MAIN BOARD 1

TFTSENSECT TFT SENSOR SECTION ASSEMBLY 4

SENSHDWRBAG TFT SENSOR HARDWARE BAG REV B 1

SENSCABLEBAGNEW TFT SENSOR CABLE BAG NEW 1

RECHDWRGRAND RECORD SWITCH HARDWARE GRD BAG 1

1200-12204 LABEL, CE BOX 1

SENSSTRIPMTBAG SENSOR STRIP MOUNTING BAG 1

PDS128MIDIHARN MIDIHARNESS CABLE, PDSI28 1

1700-10015 TFT DATA CABLE ASSY, 4R 1

3150-11000

TFTSENSECT TFT SENSOR SECTION ASSEMBLY 4

SENSCABLEBAGNEW TFT SENSOR CABLE BAG, NEW 1

SENSHDWRBAG TFT SENSOR HARDWARE BAG REV B 1

PEDSWADPTBAG PEDAL SWITCH ADAPTER BAG 1

1200-12204 LABEL, CE BOX 1

SENSSTRIPMTBAG SENSOR STRIP MOUNTING BAG 1

RECHDWRVERT RECORD SWITCH HARDWRE VERTBAG 3

1900-13034 CHASSIS, TFTRECORD MAIN BOARD 1

1600-12222 RUBBER FEET,1/2"SQUARE 1

BOXMOUNT SHEET METAL BOXMOUNTING REV A 1

TFTRECMAIN TFTRECORDMAINBOARD 1

1500-12203 SCREW,4-40 x 1/4 PHIL PANMACHZ 4

1500-12216 LOCKWASHER#4INTERNAL 4

1700-10015 TFTDATACABLEASSY.4FT 1

12


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SENSHDWRBAG

1900-13036 RAIL STRAP, TFT RECORD 6

1500-12212 SCREW, 4 X 1/4 PHIL PAN SHEET, Z1 24

SENSCABLEBAGNEW

0800-68023 HEADER, 15 PIN, D-SUB RT ANGLE 1

0800-68033 HEADER, 1 MIL, l6 PIN R/A TOP C 2

1000-10003 PCB, RECORD ADAPTER NEW, 1000-03 1

1300-13013 FLEXCABLE, 16 COND, 13" 1

1300-13022 CABLE, FLEX 16COND, 40MM 3

1500-12201 SPACER, 1/4" RND X 1/4 LG #4 NY 2

1500-12215 SCREW, 4 x 3/4 PHIL FLAT SHEET, Z 2

RECHDWRGRAND

1900-13022 BRACKET,BDAMPER SW MOUNT 1

1500-12212 SCREW 4 x l/4 PHIL PAN SHEET, ZI 2

1400-12047 CLAMP, CABLE, FLAT RIBBON, FCC 2

1600-12206 FOAM TAPE, DOUBLESIDED 1"X 2 4

RECORDSWITCH RECORD SWITCH ASSEMBLY 1

1500-12225 SCREW 6 x 3/8 SLOT HEXHEAD SHEET 2

REC/MIDIMOUNT RECORD/MIDI BD MTG GRAND REV C 1

1200-12130 RECORD LABEL 1SENSSTRIPMTBAG

1900-13035 RAIL BRACKET, RECORD 4

1500-12212 SCREW, 4 X 1/4 PHIL PAN SHEET, Z 8

1500-12214 SCREW, 4 X 5/16 PHIL PAN SHEET, Z 4

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