Sony HCD-GZR7D Service Manual page 85

QQ
3 7 63 1515 0
IC851 TC9488FG (MIC BOARD)
30 29
1 2
IC901 MM1758XFBE (VIDEO BOARD)
TE
L 13942296513
150kΩ
VCC1 1
BIAS
C IN 2 6dB
MUTE1 3
CLAMP
CVBS IN 4 6dB
YC MIX 5
CLAMP
Y IN 6 6dB
GND1 7
BIAS 8 BIAS
I/P 9
CY IN 10
CLAMP
CLP 11
150kΩ
BIAS
CB IN 12
MUTE2 13
www
150kΩ
BIAS
CR IN 14
.
http://www.xiaoyu163.com
28 27 26 25 24
VREF
POST
DAC S/H
LPF
ADPCM DELAY ADPCM
DECODE DRAM ENCODE
OSC VOLUME CONTROL
3 4 5 6
S-DC OUT
S1/S2
6.75MHz
LOW-PASS
FILTER
+
–6dB 6dB
6.75MHz
LOW-PASS
FILTER
6.75MHz
LOW-PASS
FILTER
6.75MHz
LOW-PASS
FILTER
6dB
LOW-PASS
FILTER
150kΩ
BIAS
13.5MHz
6.75MHz
LOW-PASS
FILTER
6dB
LOW-PASS
FILTER
13.5MHz
6.75MHz
x ao
LOW-PASS
y
FILTER
6dB
i
LOW-PASS
FILTER
13.5MHz
http://www.xiaoyu163.com
8
23 22 21 20 19
VREF
ADC
VREF
7 8 9 10 11 12
Q Q
3 6 7 1 3 SW
28 VCC2
OUT
27 S-DC OUT
75Ω
DRIVER
26 C OUT
VCC
25 S1
24 S2
75Ω
DRIVER
23 CVBS OUT
75Ω
22 GND2
IC003 BA00BC0WCP-V5E2 (REGULATOR BOARD)
DRIVER
IC071 BA00BC0WCP-V5E2 (REGULATOR BOARD)
21 Y OUT
IC072 BA00BC0WCP-V5E2 (REGULATOR BOARD)
IC073 BA00BC0WCP-V5E2 (REGULATOR BOARD)
75Ω
DRIVER
20 CY OUT
19 GND2
75Ω
DRIVER
1
18 CB OUT
17 GND2
75Ω u163
DRIVER
16 CR OUT
.
15 GND2
HCD-GZR7D/GZR8D/GZR9D
2 9 9 4 2 8
18 17 16
ALC
VREF
VREF
ALC
13 14 15
IC902 MM1508XNRE (VIDEO BOARD)
1 1 5 0 5 8 2 9 9 4
2
6dB
DRIVER
CLAMP CLAMP
3
BIAS
VREF
–
DRIVER
+
THERMAL OVER CURRENT
SHUT DOWN PROTECT
2 3
m
co
9 9
2 8 9 9
6 IN1
5 GND
4 IN2
VDD
4 5
85