Sony HCD-HDX277WC Service Manual page 71

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3 7 63 1515 0
IC806 S-T111B33MC-OGSTFG
ON/OFF 1
ON/OFF
CIRCUIT
VSS 2
NC
3
– I/O Board –
IC404 MM1758AFBE
150kΩ
VCC1 1
BIAS
C IN 2 6dB
MUTE 1 3
CLAMP
–6dB
CVBS IN 4 6dB
TE
L 13942296513
YC MIX 5
CLAMP
Y IN 6 6dB
GND 7
BIAS 8 BIAS
I/P 9
CY IN 10
CLAMP
CLP 11
150kΩ
BIAS
CB IN 12
MUTE2 13
150kΩ
BIAS
CR IN 14
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HCD-HDX275/HDX277WC/HDX279W/HDX475/HDX576WF/HDX675
OVER CURRENT
PROTECTOR
REFERENCE
VOLTAGE CIRCUIT
S-DC OUT
S1/S2
6.75MHz DRIVER
LOW-PASS
FILTER
+
6dB
6.75MHz DRIVER
LOW-PASS
FILTER
6.75MHz DRIVER
LOW-PASS
FILTER
6.75MHz
LOW-PASS
DRIVER
FILTER
6dB
LOW-PASS
FILTER
150kΩ
BIAS
13.5MHz
6.75MHz
LOW-PASS
DRIVER
FILTER
6dB
LOW-PASS
FILTER
13.5MHz
6.75MHz
LOW-PASS
DRIVER
FILTER
6dB
LOW-PASS
FILTER
13.5MHz
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y
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8
5
VIN
4 VOUT
28 VCC2
27 S-DC OUT
75Ω
26 C OUT
25 S1
24 S2
75Ω
Q Q
3 6 7 1 3
23 CVBS OUT
75Ω
22 GND2
21 Y OUT
75Ω
20 CY OUT
19 GND2
75Ω
18 CB OUT
17 GND2
75Ω
16 CR OUT
15 GND2
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2 9 9 4 2 8
IC407, 409, 411 MC14052 BDR2
2Y0 1
2Y2 2
2-COM 3
2Y3 4
5
2Y1
INH 6
1 5 0 5 8 2 9 9 4
GND 7
GND 8
m
co
9 9
16 VCC
15 1Y2
14 1Y1
13 1-COM
12 1Y0
11 1Y3
2 8 9 9
10 A
9 B
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