Standby-A Video Mt Pc Board; Schematic Diagram - Standby-A Video Mt Pc Board - Sony STR-DH520 Service Manual

4-19. SCHEMATIC DIAGRAM – STANDBY-A VIDEO MT PC Board –
1 2 3

STANDBY-A VIDEO MT PC BOARD

A
B
* R201
0 (US, CND)
2.2k (TW, UK, AUS, ECE)
R200
CL211 R202
C
*
R201
CN271
14P
(EXCEPT US, CND)
MODEL 14
CL212 R203
VERSION 13
CL213
+3.3V STBY 12
CL214
+5V_STBY 11
DIGITAL
CL215
10
POWER_RY
CL216
BOARD
D STOP 9
CL217
G
COMP_DET 8
(2/4)
CL218
VIDEO2_VGND 7
CN2103
CL219
VIDEO2 6
CL220
(Page 27)
VSEL_2 5
CL221
VSEL_1 4
CL222
3
V_MUTE_1
NC 2
CL223
COMP_SW2 1
E
C233
0.1
F
CH1 = Y
0 0 -5 -5
CH2 = Pb
13 14 15 16 17 18 19
CH3 = Pr
IC220
NJM2586AM
G
IC B/D
IC220
12 11 10 9 8 7 6
COMPONENT
0 0 5
VIDEO SELECT
C235
0.1
H
I
J
1 2 3
K
Y P P
B
SAT/CATV
(IN 2)
ASSIGNABLE (INPUT ONLY)
STR-DH520
• See page 46 for IC Block Diagrams.
4 5 6
D203
Q202
1SR154-400TE-25
2SC3052EF-T1-LEF
VIDEO DETECT
3.3 D202
R232
DA2J10100L
-0.7
22k
0
4.7k
R233
C219
47k 10k 3.3
1 Q201
2.8 ISA1602AM1-T111-1EF
VIDEO DETECT
0
R234
R235
1k
C218 R236
100
47k C205
0.1 22K
0.1
R278 75
R277 75
R276 75
C232
0.1
C212
100
10V
0 5 0 0 3.3
20 21 22 23 24
0 0
D204
MC2838-T112-1 9 10
5 4 3 2 1
0 0 0 5
8 7
-5 0
C217
0.1
C211
10
50V
4 5 6 7 8 9 10 11 12 13
G
Y P P Y P P
R B R B R
BD/DVD MONITOR
(IN 1) OUT
COMPONENT VIDEO
J220
7 8 9 10
C998
1000
25V
C904
3300
C201 C202
25V
0.1 0.1
13 -13
IC202
I
KIA7905PI
IC201 G
IC202
O
+5V REG
-5V REG
5 -5
R903
C203 C204
2.2k
47 47
25V 25V
R904
47k
C215
0.1
R214
75
0 0 0 5
11 12 13 14 15 16 IC210
NJM2595M-TE2
IC B/D
IC210
INPUT SELECT
6 5 4 3 2 1 2SC3052EF-T1-LEF
AC OFF DETECT
0 0
0
C944
0.1
C213
R215
10
75
50V
1 2 3 4 5 1 2 3 4 5
G
G
(CHASSIS)
VIDEO VIDEO SAT/CATV MONITOR
VIDEO OUT VIDEO IN VIDEO IN VIDEO OUT
J211 J210
31 31
11 12 13
D941
D5SBA60-F CN906
F940
4P
T3.15A 250V
CL901
1 R3 AC (Yellow)
C940 2 NC
0.047
CL902
3 CENTER
CL903
4 R3 AC (Green)
C941 F941
0.047 T3.15A 250V
CN904
7P
CL210
7 +4V_DCDC
6 +4V_DCDC
CL249
R3_GND
5
4 R3_GND
CL248
3 +13V
2 NC
1 +13V
CNP902
2P
*1 F901
CL904
1 LIVE
T6.3AL 250V (TW)
CL905
T3.15AL 250V (UK, AUS, ECE)
FH902 4 NEUTRAL
8A, 125V (US, CND)
F901
*1
Q901
FH901
2SC3052EF-T1-LEF
RELAY DRIVE
0
0.7
D901
CNP901
DA2J10100L
RY901
3P
5V, TV-8
CL906
1 LIVE
CL907
3 NEUTRAL
R902
33
T902
SUB POWER
TRANSFORMER
4
D993
MC2840-T112-1
6 3
C950
0.1
C953 1
8
C943
3300
0.1
16V
D994
MC2840-T112-1
Q990
C951
0.1
C992
0.6
R991
1
6.8k
50V
R993 R990
10k 15k
D990
MC2838-T112-1
STR-DH520
14 15 16 17
MAIN BOARD
(4/4)
C
CNP920
(Page 23)
T901
MAIN POWER
TRANSFORMER
DCDC MAIN BOARD
BOARD (4/4)
I B
CN1500 CNP930
(Page 38) (Page 23)
~ AC IN