Sony HCD-FX999W Service Manual page 74

HCD-FX999W/FX1000W
QQ
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– I/O Board –
IC203 NJM2235V (TE2)
IN 1 1
SW 1
2
IN 2 3
BIAS
SW 2 4
TE
L 13942296513
IC607 M62429FP-TP
VIN2 VOUT2
8 7
VR 2
VOL AMP 2
VOL AMP 1
REF AMP
VR 1
1 2
VIN1 VOUT1
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74
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IC802 BU2099FV
20 19 18
17
OUTPUT BUFFER (Open Drain)
3 4
1 2
8 GND
7
BUFFER OUT
VDD
6
5 VIN 3
VCC CLOCK
6 5
VREF
LOGIC
CONTROL
3 4
GND DATA
x ao
y
i
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8
14 13 12
16 15 11
12BIT SHIFT REGESTER
12BIT STORAGE
RAGESTER
5 6 7 8 9 10
IC601 MC14052BDR2
Q Q
3 6 7 1 3
IC201 MM1623BFBE
1
VCC1
150kΩ
BIAS
C IN 2 6dB
MUTE 1 3
-6dB
CLAMP
CVBS IN 4 6dB
5
YC MIX
CLAMP
Y IN 6
7
GND1
6dB
BIAS 8 BIAS
I/P
9
10
CY IN
150kΩ
CLAMP
BIAS
u163 CLP 11
150kΩ
BIAS
12
CB IN
.
13
MUTE2
150kΩ
BIAS
CR IN 14
2 9 9 4 2 8
1 5 0 5 8 2 9 9 4
S-DC OUT
28 VCC2
S1/S2
200Ω
27 S-DC OUT
75Ω
LPF 26 C OUT
DRIVER
6dB
6.75MHz
25 S1
24
S2
75Ω
LPF 23 CVBS OUT
DRIVER
6.75MHz
22
GND2
75Ω
LPF
DRIVER
6.75MHz
21
Y OUT
6.75MHz
LPF
75Ω
6dB 20 CY OUT
DRIVER
LPF
13.5MHz
m 19
GND2
6.75MHz
LPF
75Ω
co 6dB 18 CB OUT
DRIVER
LPF
13.5MHz
17
GND2
6.75MHz
LPF
75Ω
16
6dB CR OUT
DRIVER
LPF
13.5MHz
15 GND2
9 9
2 8 9 9