STR-DH720/DH720HP
STR-DH720/DH720HP
24
24
2-21. SCHEMATIC DIAGRAM – STANDBY-AVIDEO MT PC Board –
1
A
B
C
D
E
F
G
H
I
J
K
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
STANDBY-AVIDEO MT PC BOARD
POWER
TRANSFORMER
(MAIN)
T901
5
13
-5
-13
0
5
0
0
0
-5
-5
0
5
0
0
3.3
0
0
0
5
0
5
0
0
0
0
0
0
5
-5
0
0
0
0.6
0
2.8
0
3.3
-0.7
0
3.3
0
0.7
50V
1
C992
FH901
FH902
RY901
5V, TV-8
1
4
4P
CNP902
LIVE
NEUTRAL
F901
2SC3052EF-T1-LEF
Q990
AC OFF DETECT
10k
R993
2SC3052EF-T1-LEF
Q901
RELAY DRIVER
2.2k
R903
47k
R904
75
R227
16
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
VOUT1
SW5
VIN5
SW3
VIN4
SW4
VIN3
V-
VI
N
2
SW2
VOUT3
GND
VIN1
SW1
VOUT2
V+
75
R213
75
R215
75
R225
G
1
2
3
6
7
4
5
8
9
10
11
12 13
75
R224
G
1
2
3
4
5
75
R21
1
75
R214
50V
10
C224
50V
10
C225
50V
10
C226
50V
10
C227
50V
10
C228
50V
10
C229
50V
10
C213
75
R228
50V
10
C211
75
R226
75
R229
75
R278
75
R277
75
R276
24
23
22
21
20
19
18
7
6
5
17
16
15
14
13
8
3
2
1
4
9
10
11
12
CH1 IN1
SW1
CH1 IN2
SW2
CH1 IN3
GND
V+1
CH2 IN1
GND
CH2 IN2
GND
CH2 IN3
CH3 IN3
GND
CH3 IN2
V-
1
CH3 IN1
V-
2
GND
CH3 OUT
V+2
CH2 OUT
PS
CH1 OUT
16V
C953
3300
CL904
CL905
CL906
CL907
I
O
G
I
O
G
47p
C210
47p
C208
MC2838-T112-1
D990
CL902
CL901
R266
0
R264
0
R262
0
R260
0
R258
0
R256
0
R254
0
R253
0
R230
0
CL211
CL212
CL213
CL214
CL215
CL216
CL217
CL218
CL219
CL220
CL221
CL222
CL223
CL247
CL246
CL245
CL242
CL224
CL226
CL227
CL228
CL229
CL230
CL231
CL232
CL233
MC2840-T112-1
D993
MC2840-T112-1
D994
25V
3300
C904
D5SBA60-F
D941
1
3
4
8
6
1
3
3P
CNP901
LIVE
NEUTRAL
6.8k
R991
15k
R990
F940
T3.15A 250V
CL903
F941
T3.15A 250V
25V
1000
C998
ISA1602AM1-T111-1F
Q201
2SC3052EF-T1-LEF
Q202
1
C219
1k
R234
100
R207
27k
R232
10k
R233
100
R235
R200
10k
G
1
2
3
4
5
DA2J10100L
D202
DA2J10100L
D901
47k
R202
47k
R203
R201
1SR154-400TE-25
D203
MC2838-T112-1
D204
0.1
C205
0.1
C215
0.1
C217
4.7
C218
0.1
C232
0.1
C233
0.1
C235
0.1
C943
0.1
C950
0.1
C951
R212
220
75
R216
75
R217
75
R218
R902
33
C201
0.1
C202
0.1
C944
0.1
14
13
12
11
10
9
8
7
6
5
4
3
2
1
CN271
14P
COMP_SW2
NC
V_MUTE_1
VSEL_1
VSEL_2
VIDEO2
VIDEO2_VGND
COMP_DET
STOP
POWER_RY
+5V_STBY
+3.3V STBY
VERSION
MODEL
CL248
CL249
CL210
7
6
5
4
3
2
1
CN904
7P
+13V
NC
+13V
R3_GND
R3_GND
+4V_DCDC
+4V_DCDC
0.047
C940
0.047
C941
1
2
3
4
4P
CN906
R3 AC (Yellow)
NC
CENTER
R3 AC (Green)
0.1
C207
IC203
NJM2505AF (TE2)
1
V-
O
U
T
2
GND
3
+V
4
V-
IN
5
VGND
10 50V
C216
10 50V
C214
10V
100
C212
R222
2.2k
47
35V
C204
47
35V
C203
100
R205
100
R204
C236
22p
C237
22p
C238
22p
C239
22p
C240
22p
C241
22p
1
3
4
5
6
7
8
9
CN272
9P
CVBS IN
GND
CY IN
GND
CB IN
GND
CR IN
GND
CL234
CL237
CL238
CL236
CL235
C245
100
C242
68
C243
68
C244
68
8.2k
R236
POWER
TRANSFORMER
(SUB)
T902
~ AC IN
J
MAIN
BOARD
(4/4)
CNP920
(Page 22)
I
MAIN
BOARD
(4/4)
CNP930
(Page 22)
N
DCDC
BOARD
CN1500
(Page 5)
IC201
KIA7805API-U/PF
IC202
KIA7905PI
+5V REG
IC201
VIDEO AMP
IC203
-5V REG
IC202
CH1 = Y
CH2 = Pb
CH3 = Pr
NJM2586AM
IC220
COMPONENT
VIDEO SELECT
IC220
IC210
NJM2595M-TE2
INPUT SELECT
IC210
VIDEO DETECT
VIDEO DETECT
D
DIGITAL
BOARD
(2/4)
CN2103
(Page 9)
L
D-VIDEO
BOARD
(2/4)
CN3200
(Page 15)
J220
J211
SAT/CATV
(IN 2)
BD/DVD
(IN 1)
COMPONENT VIDEO
ASSIGNABLE (INPUT ONLY)
VIDEO 1
VIDEO OUT
VIDEO 1
VIDEO IN
J210
SAT/CATV
VIDEO IN
MONITOR
VIDEO OUT
MONITOR
OUT
Y
P
B
P
R
Y
P
B
P
R
Y
P
B
P
R
*1
F901
T3.15AL
250V
(ECE)
8A,
125V
(US, CND)
*1
*
R201
2.2k
(ECE)
0
(US, CND)
*
(ECE)
(CHASSIS)