Sony VPL-PX20 Service Manual page 174

GB
– B SIDE –
SUFFIX ; -11
GC
– B SIDE –
SUFFIX ; -11
VPL-PX20/PX30
A B
GB
– A SIDE –
SUFFIX ; -11
CN2500
8P
:B-TO-B
TO GA CN2106
SUB 1
SUB 2
SUB 3
GND
4
GC
– A SIDE –
GND
5
GND 6
SUFFIX ; -11 POWER ON 7
POWER PROT 8
C D
GB, GC GB, GC
IC2300
MAX797ESE
C2302 D3.3V DC-DC CONV
0.01
B:CHIP
SS DH
SKI LX
C2301
CN2300
0.33
8P D2300
16V
:B-TO-B UDZ27B REF BST
B:CHIP
JL2300 CLAMP
TO GA CN2101
#
GND DL
6V 1
6V 2
SYN PG
R2302
6V #
3
SHD VL
6V C2300
4
JL2301
33
C2310
# 25V
GND 5
0.1 FB V+
:AL-CP
B:CHIP
GND 6
CSH CSL
GND 7
GND
8
R2301
0
:CHIP
IC2500
MAX797ESE
SUB +5V
SUB5V DC-DC CONV
C2502 D2501
0.01
1S2836
B:CHIP
RECTFIER
SS DH
C2503
0.1
B:CHIP
SKI LX
C2501
C2500
0.33
22
D2500 16V
REF BST
35V
UDZ27B B:CHIP
:AL-CP
SUB +5V JL2501
CLAMP
#
GND DL
R2502
SYN PG
0
:CHIP
C2504
4.7
SHD VL
16V
F:CHIP
C2510 FB V+
0.1 R2501
B:CHIP #
CSH CSL
JL2500 JL2502
# #
9-41 9-41
E
Q2301
2SK2281
SWITCHING
D2301
1S2836
RECTIFIER
C2304 R2306
Q2300
0.1 S 0
2SK2281
B:CHIP 1W
SWITCHING :CHIP
L2300 R2309 L2301
33 1.5k 15µH
:RN-CP :SMD
:LAGE
R2305 C2306
S 1.5k C2305 0.01 C2307
:RN-CP 0.01 220
C2308
R2308 10V
R2304 680
330
330 10V
:RN-CP
:RN-CP
C2303
R2303 R2307
4.7
4.7k 4.7k
16V
:RN-CP :RN-CP
F:CHIP
D2302
D1FS4A
RECTIFIER
GB
(D3.3V REG)
Q2501
2SK2281
SWITCHING
R2506
Q2500
0
2SK2281
S 1W
SWITCHING :CHIP
R2509
L2500
47 0 C2511
:SMD :CHIP 0.1
B:CHIP
R2505
C2506
0
S
C2505 #
:CHIP
#
C2507
D2502 R2508
R2504 1000
D1FS4A 0
0 10V
:CHIP
RECTIFIER
:CHIP
R2507
R2503 #
#
GC
(SUB5V REG)
F G
1
JL2302
#
1 D3.3V
CN2301
D3.3V
C2311 2 5P
0.1 WHT
3 D3.3V
B:CHIP :S-MICRO
4 GND TO BB CN308
5 GND
JL2303
#
2
B-SS1696<08.>-GB.
3
JL2503
#
1 SUB5V
4
2 SUB5V CN2502
6P
GND 2
JL2504 3 WHT
#
:S-MICRO
4 GND 2
TO BB CN310
JL2505
5 POWER ON
#
JL2506 6 POWER PROT
#
5
B-SS1696<08.>-GC.
H