Block Diagram; Overall Wiring Diagram - Pioneer BDP-120 Service Manual

1

4. BLOCK DIAGRAM

QQ
3 7 63 1515 0

4.1 OVERALL WIRING DIAGRAM

A
When ordering service parts, be sure to refer to "EXPLODED VIEWS and PARTS
LIST" or "PCB 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.
B
Over Voltage Protecter
Primary
Switching
Control
Transformer
IC901
WA327WJ
MR4010
C
FEED BACK
STANDBY CTL
TE
L 13942296513
POWER PWB UNIT
(DUNTKF053TEV3)
D
E
www
F
18
1
http://www.xiaoyu163.com
2
FAN_VDD
FAN REG
Q901
OVP
2SD468
AT_12V
AT_12V (To MAIN PCB)
Rectifier
SUB_PC_-8V SW
AT_-12V
Q953
Rectifier
2SB1132Q
LOW_POWER_CTL
CN2502
8PIN
BtoB
CN1201
AT_5V
x ao
y
POWER
. i
OPE-L PWB UNIT
(DUNTKF056TEV3)
2
http://www.xiaoyu163.com
3
8
To FAN
CN902
23PIN
B to B
CN901
SUB_PC_-8V (To MAIN PCB)
OVP
Q Q
3 6 7 1 3
TO
POWER CIRCUIT MAIN_P-CON(H)
BLOCK
DRIVE_P-CON(H)
SUB_PC_(H)
FAN_DET
LOW_POWER_CTL
SUB_SHORT_DET
PLAY STOP
PAUSE
u163
.
BDP-120
3
4
2 9 9 4 2 8
MAIN BLOCK
23PIN
B to B
CN2301
FR_CEC_IN
FR_CEC_OUT
D_GND
FRONT_RXD
FRONT_TXD
COLD_RST
FL_BUSY
POWER_FAIL
CBOOT
23PIN
B to B
SC9001
AT_12V
AT_5V
IC2508
SUB_PC_-8V
1 5 0 5 8 2 9 9 4
RESET
PST8246N
IC2502
KEY_STBY
RESET
PST3220
m
co
(WHITE)
4
9 9
IC2506
AND
T7SET08F
I2C
IC2502
E2PROM
BR24L16F
2 8 9 9
IC2501
RESET
BD5231
CN2501
14PINFFC
SC1101
AT_5V
SEG_
COM
IC1101
LCD DRIVER
PT6596