Relay Board - Sony HCD-DX375 Service Manual

– I/O Board –
IC201 MM1623BFBE
150kΩ
VCC1 1
BIAS
C IN 2 6dB
MUTE 1 3
+
CLAMP
–6dB 6dB
CVBS IN 4 6dB
YC MIX 5
CLAMP
Y IN 6 6dB
GND1 7
BIAS 8 BIAS
I/P 9
CY IN 10 6dB
150kΩ
CLAMP
BIAS
CLP 11
150kΩ
BIAS
CB IN 12 6dB
MUTE2 13
150kΩ
BIAS
CR IN 14 6dB
– LED Board –
IC803 BU2099FV
20
12 BIT
CONTROL
SHIFT
CIRCUIT
REGISTER
12 BIT
STORAGE
REGISTER
2 3 4
1 5
S-DC OUT
S1/S2
75Ω
6.75MHz DRIVER
LOW-PASS
FILTER
75Ω
6.75MHz DRIVER
LOW-PASS
FILTER
75Ω
6.75MHz DRIVER
LOW-PASS
FILTER
6.75MHz
75Ω
LOW-PASS
DRIVER
FILTER
LOW-PASS
FILTER
13.5MHz
6.75MHz
75Ω
LOW-PASS
DRIVER
FILTER
LOW-PASS
FILTER
13.5MHz
6.75MHz
75Ω
LOW-PASS
DRIVER
FILTER
LOW-PASS
FILTER
13.5MHz
19 18 17 16 15 14 13 12 11
OUTPUT
BUFFER
(OPEN DRAIN)
6 7 8 9 10
IC352 MC14052BDR2
28 VCC2
27 S-DC OUT
26 C OUT
25 S1
24 S2
23 CVBS OUT
22 GND2
21 Y OUT
20 CY OUT
19 GND2
18 CB OUT
17 GND2
16 CR OUT
15 GND2
– RELAY Board –
IC701, IC711 BA6956AN
1 2 3
HCD-DX375
TSD
CONTROL LOGIC
4 5 6 7 8 9
69