Casio CTK-220L manual Keyboard PCBs

Page 18

Item

Code No.

Parts Name

Specification

Q

R

 

Main PCB

 

 

 

 

1

6925 6160

Main PCB ass'y (MA1M)

M240438*3

1

B

LSI1

2012 4690

LSI, CPU

MSM6755B-13

1

A

IC1

2105 5922

IC

RH5VL40AA-T1

1

A

IC2

2105 4452

IC

HD74HC174FPTR

1

A

IC3

2105 5796

IC

HD74HC4511FPTR

1

A

Q1 - Q4

2259 2555

Transistor, Chip, Digital

UMW1NTL

4

A

Q5 - Q8

2259 2562

Transistor, Chip, Digital

UMS1NTL

4

A

Q9

2259 2646

Transistor, Chip, Digital

UMH3NTN

1

A

Q10

2259 2548

Transistor, Chip, Digital

DTC143EUAT106

1

A

Q11

2252 1239

Transistor, Chip

2SC4081-T106Q

1

A

D1

2390 2576

Diode, Chip, Schottky

RB501V-40TE-17

1

B

D3

2390 1820

Diode, Chip

1SS355TE-17

1

B

X1

2590 1526

Oscillator, Ceramic

EFO-EN2005C4

1

B

LED1

2370 1141

LED, 7-seg.

SL-9352-60

1

B

 

Sub PCB ass'y

 

 

 

2

6925 6173

Sub PCB ass'y

M140476*2

1

B

IC301

2114 2891

IC

LA4598

1

A

Q301

2250 0742

Transistor

2SA1703S,T-AN-T

1

A

Q302, Q305

2220 1409

Transistor

2SC1740SR-TP-T

2

A

Q303

2253 0581

Transistor

2SD1858R,S-TV6-T

1

A

Q304

2253 0455

Transistor

2SD1762E.F

1

A

 

2390 1344

Diode

1SS133T-77-T

31

B

D304

2360 1729

Diode, Zener

MTZJ5.1A-T77-T

1

B

D331

2390 0378

Diode

1SR139-100T-32-T

1

B

D333

2390 1323

Diode

RB100A-T32-T

1

B

D334, D336

2360 2002

Diode, Zener

MTZJ5.6B-T77-T

2

B

LED301

2370 1106

LED

MPR3338S-B99

1

B

J301

3501 7049

Jack, Power

HEC2305-01-330

1

B

J302

3501 4382

Jack, Phone

HSJ2000-01-010

1

B

 

Keyboard PCBs

 

 

 

 

2301 0101

Diode

1S2473T-77-T

49

B

3

6925 6180

Keyboard PCB ass'y

M140449*2

1

B

 

LED PCBs

 

 

 

 

 

2370 1323

LED (for white key)

KR3301X-J344K

29

B

4

6925 6183

LED PCB ass'y LD1,2M

M140473*1

1 C

 

2370 1330

LED (for black key)

KR3302X-J345K

20

B

5

6925 1340

LED PCB ass'y LD3M

M240428*1

1 C

6

6925 6184

LED PCB ass'y LD4M

M240500*1

1 C

 

Mechanical Parts

 

 

 

7

6925 2160

Battery cover

M340490*1

1

B

8

6925 6261

Slide knob

M311859A-6

1

B

9

6925 5380

Display plate

M340534-2

1

C

10

6909 5890

Slide contact

CSB-12D

1

B

11

3831 1072

Speaker

S10JA49A

1

B

12

6925 6370

Rubber button

M240374-3

1

B

13

6906 8371

Rubber button

M240414-2

1

B

14

6925 6300

Rubber button

M240413-2

1

B

15

6925 1700

White key set, LSK-CB

M340489*1

3

A

16

6925 1710

White key set, LSK-CS

M340489*2

1

A

17

6925 1720

Black key set, LSK-10P

M140369-1

2

A

18

6923 2390

Key contact rubber, 18

M240025-1

1

A

19

6922 4000

Key contact rubber, 31

M111765-1

1

A

 

Other

 

 

 

 

 

6916 7880

Music stand

M310827-1

1

C

— 15 —

Image 18
Contents CTK-220L Contents Specifications GeneralBlock Diagram CPU LSI1Circuit Description KEY MatrixCPU LSI1 MSM6755B-13 Filter Block Major Waveforms Printed Circuit Boards Sub PCB KDM445-MA2MSchematic Diagrams Sub PCBs KDM445-MA2M/MA3M Keyboard PCBs KDM4910K-KY1M/KY2M LED PCB KDM446-LD1M LED PCB KDM445-LD2M LED PCB KDM446-LD3M Exploded View Parts List Keyboard PCBs Nov MA1100761A