Schematic Diagram - Standby-Avideo Mt Pc Board - Sony STR-DH720 Service Manual

STR-DH720/DH720HP
2-21. SCHEMATIC DIAGRAM – STANDBY-AVIDEO MT PC Board –
1 2 3
STANDBY-AVIDEO MT PC BOARD
A
2SC3052EF-T1-LEF
VIDEO DETECT
* R201
2.2k (ECE)
0 (US, CND)
10k
R200
CL211 R202
47k
B * R201
CN271
14P
(ECE)
MODEL 1
CL212 R203 47k C205
VERSION 2
0.1
CL213
+3.3V STBY 3
CL214
+5V_STBY 4
DIGITAL
CL215
POWER_RY 5
CL216
BOARD
STOP 6
CL217
D
C (2/4) COMP_DET 7
CL218 R205 100
VIDEO2_VGND 8
CN2103
CL219 R204 100
VIDEO2 9
CL220
(Page 9)
VSEL_2 10
CL221
VSEL_1 11
CL222
V_MUTE_1 12
NC 13
CL223
COMP_SW2 14
D
CN272
C245 100
9P
CL234
D-VIDEO CVBS IN 1
GND 3
BOARD
CL235
CY IN 4
L
(2/4) C242
GND 5
E 68
CL236
CN3200 CB IN 6
CL237
GND 7
(Page 15)
CR IN 8 CL238
GND 9
F
G
C232
0.1
CH1 = Y
CH2 = Pb
CH3 = Pr
0 0 -5 -5 0 5 0 0
13 14 15 16 17 18 19 20 21 22 23
IC220
NJM2586AM
IC220
COMPONENT
VIDEO SELECT
H
12 11 10 9 8 7 6 5 4 3 2
0 0 5 0 0 0 5
C235
0.1
I
C224 C225 C226 C227 C228 C229
10 10 10 10 10 10
50V 50V 50V 50V 50V 50V
R230 R253 R254 R256 R258 R260
0 0 0 0 0 0
J
C238 C241
22p
22p
C237 C240
22p 22p
C236 C239
22p 22p
1 2 3 4 5 6 7
K
Y P P Y P P
B R B R
SAT/CATV BD/DVD
(IN 2)
(IN 1)
ASSIGNABLE (INPUT ONLY)
COMPONENT VIDEO
J220
STR-DH720/DH720HP
4 5 6 7
D203
1SR154-400TE-25
Q202
D202
R232
DA2J10100L
27k
3.3
-0.7
C219 R233
3.3
1
10k Q201
0 2.8
ISA1602AM1-T111-1F
VIDEO DETECT
0
R235
100
R207 R234
100 1k
C218
R236
4.7
8.2k
C216 10 50V
C214 10 50V
0
4 5
IC203
NJM2505AF (TE2)
IC203
VIDEO AMP
3 2 1
5 0
C207
0.1
C212
100
10V
R222 2.2k
C217
0.1
3.3
24
0 0
D204
MC2838-T112-1 9 10 11 12
1
8 7 6 5
-5 0
C211
10
50V
R262 R264 R266
0 0 0
8 9 10 11 12 13 1 2 3 4
Y P P
B R VIDEO 1 VIDEO 1
VIDEO OUT VIDEO IN
MONITOR
OUT J211
8 9 10
C201 C202
0.1 0.1
13 -13
IC202
KIA7905PI
IC202
IC201
+5V REG -5V REG
5 -5
C204
C203
47 47
35V 35V
C215
0.1
R212
220
0 0 0 5
13 14 15 16
IC210
NJM2595M-TE2
IC210
INPUT SELECT
4 3 2 1
0 0
C213
10
50V
Q990
2SC3052EF-T1-LEF
AC OFF DETECT
5 1 2 3 4 5
SAT/CATV MONITOR
VIDEO IN VIDEO OUT
J210
24 24
11 12 13 14
1 +4V_DCDC
CL210
+4V_DCDC
2
3 R3_GND
CL249
4 R3_GND
5 +13V
6 NC
CL248
+13V
7
CN904
D941 7P
C998
D5SBA60-F
1000 F940
25V T3.15A 250V
CL901
1 R3 AC (Yellow)
C904
C940 2 NC
3300
0.047 CL902
25V
3 CENTER
CL903
4 R3 AC (Green)
F941
C941
CN906
T3.15A 250V
0.047
4P
CL904
1 LIVE
CL905
4 NEUTRAL
FH902
CNP902
*1 F901 4P
F901
T3.15AL 250V (ECE)
*1
8A, 125V (US, CND)
FH901
Q901
2SC3052EF-T1-LEF
RELAY DRIVER
R903
2.2k 0
0.7
R904
D901 RY901
47k
5V, TV-8
DA2J10100L
R902
33
CNP901
3P
CL906
1 LIVE
CL907
3 NEUTRAL
T902
POWER
TRANSFORMER
(SUB)
6
D993
MC2840-T112-1
8
C950
0.1
D994
MC2840-T112-1
C953
C943
3300
0.1
16V
C944
C951
0.1
0.1
0
0.6
C992
R991
1
6.8k
50V
R993 R990
10k 15k
D990
MC2838-T112-1
15 16 17
DCDC
BOARD
N
CN1500
(Page 5)
MAIN
BOARD
J
(4/4)
CNP920
(Page 22)
T901
POWER
TRANSFORMER
(MAIN)
MAIN
BOARD
I
(4/4)
CNP930
(Page 22)
~ AC IN
4
3
1
(CHASSIS)