Sony HCD-D890AV Service Manual page 20

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IC101 CXA1992AR
39 38
PD2 IV PD1 IV
AMP AMP
FE_BIAS
40
F 41 –
+
F IV AMP
E 42 –
+
E IV AMP
43
EI
VEE
VEE 44
TEO 45
+
–
E-F BALANCE
WINDOW COMP.
LPFI 46 +
+
–
–
TEI 47
–
+
ATSC 48
–
+
ATSC
WINDOW
COMP.
49
TZC –
+
DFCT
TZC COMP.
TDFCT 50
VCC
VC 51
VEE
VCC
FZC
52 +
–
FZC COMP.
1 2
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37 36 35 34
VEE
RF SUMMING
AMP
VCC
APC
VEE
LASER POWER CONTROL
VCC
FE AMP
+
–
+
–
VEE
FO. BIAS
WINDOW
COMP.
+
–
+ TRK. GAIN
–
WINDOW COMP.
+
–
TGH
BALH
BALL
ATSC
TM1
TRACKING
PHASE COMPENSATION
TG1
FOCUS
PHASE COMPENSATION
DFCT
FS4
3 4 5 6
– 87 –
33 32 31 30
–
+
VCC
VEE
VEE
LEVEL S
VEE
VCC
MIRR
FOK
FOH
FOL
TGL IIL DATA REGISTER
INPUT SHIFT REGISTER
ADDRESS DECODER
SENS SELECTOR
OUTPUT DECODER
TZC
FZC
DFCTO
IFB1-6 FS1-4 TG1-2
BAL1-4
TOG1-4
VCC
FS1
FS2
Charge
up
TG2
VEE
7 8 9 10
29 28 27
IIL
↓
TTL
VCC
DFCT
IIL
↓
TTL
TTL
↓
IIL
VCC
TM1-7 PS1-4
ISET
VCC VCC
TM4 TM6
TM7
TM5
TM3
VEE VEE
TM2
FSET
11 12 13
SENS2
26
25 SENS1
24 C. OUT
23 XRST
DATA
22
21 XLT
CLK
20
19 LOCK
18 VCC
17 ISET
16 SL_O
15 SL_M
SL_P
14