Philips MX3900D Service Manual page 30

POWER SWITCH PART - CIRCUIT DIAGRAM (For pt 4 board)
1500 B1 2501 B2 3501 C3 3503 B2 3505 A2
1501 C1 2502 C2 3502 A2 3504 B2 3506 C3
1 2
3505
A
470R
+C
3503
100R
1500
B 1
2
Stdby_LED
3 RC6
4
LPS_LED
5 Stdby_key
Standby
6
GND_B
7
+C
C
FE-ST-VK-N
GND_B GND_B
1 2
POWER SWITCH PART - COMPONENT & CHIP LAYOUTS (pt 4 board)
This assemby drawing shows a summary of all possible versions. For
components used in a specific version see schematic and respective parts list.
8239 210 94144 ..3502p4 dd wk0405
6-6a
6500 C3 7500 C3 7504 A2
6501 A3 7501 B3
3
+C
7504
A
BC847B 6501
LTL-816GE
TSOP4836ZC1 7501
3
VS
1
OUT
B
GND
2
GND
+C
7500
3506
BC847B
C
470R
8239 210 94144 ..3502p4 dd wk0405
3
This assemby drawing shows a summary of all possible versions. For
components used in a specific version see schematic and respective parts list.
8239 210 94144 ..3502p4 dd wk0405
DTC KEY PART - CIRCUIT DIAGRAM (For pt 4 board)
1400 A1 1402 A2 1404 A3 2400 A3
1401 A2 1403 A2 1405 A3 3400 A2
1
1400
1 GND_B
DISC1
3400
2
150R
A
EH-S
GND_B
1
DTC KEY PART - COMPONENT & CHIP LAYOUTS (pt 4 board)
This assemby drawing shows a summary of all possible versions. For components used in a specific version see schematic and respective parts list.
This assemby drawing shows a summary of all possible versions. For components used in a specific version see schematic and respective parts list.
6-6a
3401 A2 3403 A3
3402 A3
2 3
DISC4
DISC2 DISC3 DISC5
3401 3402 3403
220R 270R 390R
A
GND_B GND_B GND_B GND_B
GND_B
8239 210 94134 ..3502p4 dd wk0405
2 3
8239 210 94134 ... 3502p4 dd wk0405
8239 210 94134 ... 3502p4 dd wk0405