Read Sony STR-DH520 Service Manual online
STR-DH520
STR-DH520
14
14
4-3. BLOCK DIAGRAM – STANDBY-A VIDEO MT PC Section –
14
13
5
7
1
75ȍ
DRIVER
6dB AMP
15
75ȍ
DRIVER
6dB AMP
V_COMP_SW2
V_SEL_SW2
V_MUTE
V_SEL_SW1
V_SEL_SW1
COMP_SW2
VSEL_2
COMP_DET
V_MUTE_1
VSEL_1
VSEL_1
SYSTEM CONTROL
IC2105 (3/5)
-5V
-5V-3
+5V
+5V-3
VOUT1
VOUT2
VIN1
VIN4
VIN3
VSEL_2
SW1
2
SW5
10
SW2
INPUT SELECT
IC210
CH1 IN2
CH2 IN2
CH3 IN2
CH1 IN3
CH2 IN3
CH3 IN3
4
SW2
COMP_SW2
6dB AMP
6dB AMP
6dB AMP
23
PS
V_MUTE_1
COMPONENT VIDEO SELECT
IC220
82
83
84
85
83
84
85
COMP_DET
81
VSEL_1
D204
VIDEO
DETECT
COMP_DET
Q202
Q201
Q201
3
5
5
10
15
13
13
12
CH1 OUT
CH2 OUT
CH3 OUT
24
22
20
V-1,-2
-5V-3
V+1,+2
+5V-3
75ȍ
DRIVER
75ȍ
DRIVER
75ȍ
DRIVER
Y
P
B
P
R
Y
P
B
P
R
J220 (1/2)
BD/DVD
(IN 1)
SAT/CATV
(IN 2)
5
6
7
-1
-2
-3
J211 (1/2)
J210 (1/2)
-3
Y
P
R
P
B
J220 (2/2)
MONITOR
OUT
COMPONENT
VIDEO
9
10
11
-3
J210 (2/2)
J211 (2/2)
VIDEO
VIDEO OUT
-1
MONITOR
VIDEO OUT
ASSIGNABLE
(INPUT ONLY)
COMPONENT
VIDEO
VIDEO
VIDEO IN
SAT/CATV
VIDEO IN
-1
6LJQDOSDWK
: VIDEO
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