Volume Board - Philips AZ4000 Service Manual

CIRCUIT DIAGRAM - VOLUME BOARD
VOLOUME BOARD - CIRCUIT DIAGRAM
1400 A2 1403 B6 2401 E4 3403 D4 4408 A3
1401 D3 1425 D6 3400 A5 3428 D3 4409 B3
1402 B5 2400 E2 3402 D3 3429 D4 4409 B3
1 2

VOLUME BOARD

A
1400
FE-ST-VK-N
T400
1
KEY_G3
T401
2
VSS
T405
3
SWPb
B
T402
4
SWPa
T405
5
+B
T405
6
BASS_LED
T403
7
+C
T404
8
C
ROTARY 2
T405
9
D_GND
T405
10
ROTARY 1
3428
D
1K
2400
E
100p
1 2
12 - 1
6411 C5 T401 B2 T404 C2 T405 B2
T400 A2 T402 B2 T405 B2 T405 C2
T400 D5 T403 C2 T405 B2 T405 C2
3 4 5 6
KEY GROUP 3
3400
4408
1K2
4409
1402
1403
4409
BASS EQ
VSS
6411
3402 3403 3429
22K 22K 1K
1425
DIPMATE
1401 T400
1 2
1
SOURCE
4 EC16
2
VSS
5
?
2401
SWPb
3
100p
VOL
?
SWPa
3 4 5 6
LAYOUT DIAGRAM - VOLUME BOARD
VOLOUME BOARD - LAYOUT DIAGRAM
1400 A2 1402
1401 A1 1403
1
A
A
B
C
1
D
2400 A2 3400
2401 A2 3402
E
4400
A
12 - 1
A2 1404 A1 6401 A2
A2 3404 A2 9400 A2
2
2
A1 3403 A1 4400 A1 4403 A1
A1 3405 A1 4401 A1
1 2
4403
3403 3405
3402
1 2
A
A