Sony HCD-DP900D Service Manual page 64

HCD-DP900D
IC001 SP3728AC (RF-240 BOARD)
64 63
1
RF IF
INPUT
ATT
2 BUS
RF IN
CP 3
WIN 4
WPP 5
6
CN
ADD
+ – – +
A2
7
EQ
B2
8 EQ
C2
9
EQ
10
EQ
D2
GCA
11
CLAMP
D
12 CLAMP
C
13
B
CLAMP
A 14
CLAMP
E 15
CLAMP
F
16
CLAMP
CLAMP
CLAMP
VC
REG.
VDD
17 18
19 20 21 22
64
62 61 60 59 58 57 56
FULL WAVE
VDD
INPUT
VGC
BUS
+
CLAMP HOLD
–
PHASE
+
DET.
+
PHASE
DET.
AMP
ADD
A+C AMP
GCA
B+D
GCA
OFFSET
G+H
AMP
GCA
E+F
GCA
ADD
LD SEL APC GAIN
SEL APC LD DRV
VSS
23 24 25 26
55 54 53
AGC
VSS
CHARG
PUMP
BUTTOM
ERR
PROGRAMBLE
EQ.FILTER
LEVEL
DEL
ADC
MPX LPF GCA
TOCA
2
TOCA
70kHz
AGC
GCA LPF
70kHz
LPF
TOP
HOLD
LEVEL
AGC
COMP
LDON
LD SEL.
MPX BIAS
27 28 29
52 51 50 49
SELIAL
DEW
PORT
DECODER
CONTROL SIG
HOLD
TPA
RF HOLD EN
MON
RF AGC HOLD
SEL
+
–
VPC
TE
FWT
VC
COMP
SEL
–
DEFECT
LEVEL
GAC
–
VC
DF
CHAGE
PUMP
MPCPI
BOTTOM
HOLD –
30 31 32
48 SDEN
47 SCLK
46
SWD
45
SRD
44
MON
43 TPH
42
FE
41
TE
40
TZIN
39
VCI
38
DET
37 TZC
36
PI
35
PII
34 BYP2
33 MIRR