PIONEER CU-VSX138 Service Manual

VSX-D508

56

•

Parts List

Mark No. Description Part No.

1 Filter AZA7152
2 Name Plate AZA7304
3 Rubber Sheet (A) AZA7308
4 Rubber Sheet (B) AZA7307
5 Spring (+) AZB7049

6 Spring (–) AZB7050
7 Spring AZB7051
8 Screw AZB7052
9 Remo-con Case (A) AZN7738

10 Remo-con Case (B) AZN7326

11 Battery Cover AZN7327
12 Main Key (FF) AZN7666
13 Main Key (STOP) AZN7741
14 Main Key (REV) AZN7665
15 Main Key (PAUSE) AZN7742

16 Main Key (PLAY) AZN7664

NSP 17 PCB AZW7248

2

9

13

12

16

15

14

3

17

1

10

8

11

7

6

5

4

7.4 REMOTE CONTROL UNIT [CU-VSX138 (AXD7178)]

7.4.1 Exploded Views and Parts List

NOTES:• Parts marked by "NSP" are generally unavailable because they are not in our Master Spare Parts List.

•

The

mark found on some component parts indicates the importance of the safety factor of the part.

Therefore, when replacing, be sure to use parts of identical designation.

•

Screws adjacent to

mark on the product are used for disassembly.

VSX-D508

57

A

B

C

D

1

234

1

2

3

4

7.4.2 Schematic Diagram

8 16 24 32407 15

23 31 39

6 14 22 30385 13

21 29 37

4

12 20 28 36

3 11 19 27352

10 18 26 34

1

9 17 25 33

No.

128

27

26

25

24

23

22

21

20

19

18

17

16

15

3.0V

T5

T4T3

T1

X1

4.0MHz

T2

D2

RLS-73

KEY No.

R3

47Ω

R7

100kΩ

R6

100kΩ

R1

1.8Ω

R2

220Ω

IC1

AZC7282

R18

0

Q4Q3Q2

R5

100kΩ

R10

R13

R16R15R14

R12R11

R9R8

D11

D14

D17

D1

SE303A-C

C3

1/50

C4

1/50

Q1

2SC3265

D16D15

D13D12

D10D9

Q2 - Q4 : RN4605 × 3

D9 - D17 : CL-230HR-CD × 9

R8 - R16 : 240Ω × 9

P0D1

P0D0

P0C3

P0C2

P0C1

P0C0

P0B3

P0B2

P0B1

P0B0

P0A3

P0A2

P0A1

P0A0

2

3

4

5

6

7

8

9

10

11

12

13

14

P0D2

P0D3

P0D3

P0D2

P0D1

P0E3

P0E2

P0E0

INT

P0E0

P0E1

P0E2

P0E3

REM

VDD

XOUT

XIN

GND

RESET

WDOUT

C1

220/6.3

C2

47/10

K01 : AMP (POWER)

K02 : TV (POWER)

K03 : MUTING

K04 : POWER

K05 : TV FUNC.

K06 : VOL.-

K07 : VOL.+

K08 :

K09 :

K10 :

K11 :

K12 : ENT.

K13 : CH-

K14 : CH+

K15 : DVD/LD

K16 : TV/SAT

K17 : CD

K18 : VCR1

K19 : TUNER

K20 : TV CONTROL

K21 : VCR2

K22 : AMP

K23 : MD/TAPE

K24 : 1

K25 : 2

K26 : 3

K27 : 4

K28 : 5

K29 : 6

K30 : 7

K31 : 8

K32 : 9

K33 : 10 (0)

K34 : 11 (+10)

K35 : 12 (DISC)

K36 : DIRECT

K37 : FUNCTION

K38 : FL DIMMER

K39 : MODE CHECK

K40 : COMMANDER SET UP

SWITCHES

Note : When ordering service parts, be sure to refer to "EXPLODED VIEWS and PARTS LIST" or "PCB PARTS LIST".