Sony HCD-PZ1D, Service Manual

Page: 72 / 108

HCD-PZ1D
72
IC1501 MM1758AFBE
IC811, 812 BU2099FV
– MIC Board –
IC781 BU9253FS-E2
– VIDEO Board –
IC1500 TC74LVX4051FT
– FRONT Board –
IC801 TK11133CSCL-G
16
OSC
CR
15
MUTE
14
VCC
13
AD IN
12
AD OUT
11
LPF OUT
10
LPF IN
9
MIX IN
1
GND
2
ECHO VOL
3
BIAS
4
DA IN
5
DA OUT
6
LPF IN
7
LPF OUT
8
MIX OUT
SRAM COUNTER
MIX
A/D
D/A
1
D4
2
D6
3
COM
4
D7
5
D5
6
INH
7
VEE
8
GND
9
C
10
B
11
A
12
D3
13
D0
14
D1
15
D2
16
VCC
OUT
C
IN
OUT
C
IN
OUT
C
IN
OUT
C
IN
OUT
C
IN
OUT
C
IN
OUT
C
IN
OUT
C
IN
LOGIC LEVEL
CONVER
TER
1 VCC1
2 C IN
3 MUTE 1
4 CVBS IN
28 VCC2
23 CVBS OUT
25 S1
150k
:
BIAS
12 CB IN
150k
:
BIAS
CLAMP
6dB
6dB
6 Y IN
7 GND
8 BIAS
CLAMP
BIAS
6dB
9 I/P
10 CY IN
11 CLP
13 MUTE2
5 YC MIX
+
6dB –6dB
6dB
27 S-DC OUT
24 S2
LOW-PASS
FILTER
21 Y OUT
22 GND2
6.75MHz
75 :
DRIVER
LOW-PASS
FILTER
6.75MHz
75 :
DRIVER
20 CY OUT
75
:
DRIVER
S-DC OUT
S1/S2
26 C OUT
LOW-PASS
FILTER
6.75MHz
75
:
DRIVER
CLAMP
150k
:
BIAS
LOW-PASS
FILTER
6.75MHz
LOW-PASS
FILTER
13.5MHz
18 CB OUT
19 GND2
17 GND2
15 GND2
75
:
DRIVER
LOW-PASS
FILTER
6.75MHz
LOW-PASS
FILTER
13.5MHz
14 CR IN
150k
:
BIAS
16 CR OUT
75
:
DRIVER
LOW-PASS
FILTER
6.75MHz
LOW-PASS
FILTER
13.5MHz
6dB
6dB
CONTROL
CIRCUIT
BANDGAP
REFERENCE
+
–
OVER HEAT &
OVER CURRENT
PROTECTION
1
VCONT
3
NP
2
GND
4
VOUT
5
VIN
2 3 4 5 6 7 8 9 10
11 17 16 15 14 13 12
CONTROL
CIRCUIT
12 BIT
SHIFT
REGISTER
12 BIT
STORAGE
REGISTER
OUTPUT
BUFFER
(OPEN DRAIN)
19 20
VDD OE Q1
1
18
Q1
1
Q10 Q9 Q8 Q7 Q6 Q5
Q4 Q3 Q2 Q1 Q0
LCK
CLOCK
DA
TA
N.C.
1
VSS