Sony cdx-c8050x Service Manual page 46

• IC Block Diagrams
IC1 CXA2596M
APC PD AMP
+
HOLD 1
–
VCC
VEE +
–
AGCVTH 2
VEE +
+
– APC LD AMP
–
LD 3
VCC
VC
PD 4
+
–
A
5
+
+
–
–
B
6
+
–
VEE
C
7
VC + VC +
– –
D 8
RF SUMMING AMP RF EQ AMP
VC
VEE 9 VEE ERROR AMP
VC
FOCUS
+
–
+
VC
–
F 10
E 11 –
+
VC
VC
VC BUFFER VCC
VC 12
+
VEE
–
VC
IC601 BA8270F
BUS ON 14 VCC
BUS ON
1
SWITCH
RESET
RST 2 13 RST
SWITCH
12 BUS ON
11 CLK IN
BATTERY
BATT 3 10 BU IN
SWITCH
CLK 4
VREF 5
DATA 6 9 DATA IN
GND 7 8 DATA OUT
IC7 LA6556L-TE-L
VCC 24 VCC FWD 1
INPUT
REV 2
23 LC/PD
VCC2
3
22 LD ON
VL0– 4
21 HOLD SW
VL0+ 5
VO4+
6
20 AGCCONT
VO4– 7
VC 19 RF BOT
VO3+ 8
18 RFTC VO3–
9
17 RF I
16 RFO
VO2+ 10
VO2– 11
15 RFE
VO1+
12
14 FE
VO1– 13
–
+
13 TE
VCC1 14
TRACKING
ERROR AMP
VC
VIN1
15
VIN1–A 16
AMP-A
–
VIN1+A 17 +
VIN1–B
18 –
+
AMP-B
IC504 RN5VD33AA-TL
5
RESET
1 2
GND
36 S-GND
CH2-CH4 OUTPUT
35 MUTE2
MUTE2
ON/OFF
CH1 OUTPUT
34 MUTE1
MUTE1
ON/OFF
33 VIN4
OUTPUT
CONTROL
32 VIN4–
+
–
31 VIN4+
LEVEL
SHIFT
30 VREF-IN
29 VIN1 (VREF)-SW
VIN1/VREF SW
LEVEL
SHIFT
28 VREF-OUT (CH1)
–
+
5V REG
+
–
27 REG-OUT
LEVEL
SHIFT
26 REG-IN
25 VIN3+
+
LEVEL
–
SHIFT
24 VIN3–
23 VIN3
22 VIN2+
–
+
+
–
21 VIN2–
20 VIN2
19 VIN1 +B
4
3
46 46
IC303, 304, 305 NJM2160AM-TE2
VCC 1
INL 2
VCCL
BUFFER
CL+
16
SVRL 3 15 CL–
LIFT
BUFFER AMP
REFERENCE
VCCL
14 LGND
SIGNAL
AMP
OUTL
13
4
INML
VCCR
INMR 5
12 OUTR
SIGNAL
AMP
11 RGND
REFERENCE
VCCR
LIFT
BUFFER
AMP
SVRR 10 CR–
6
9 CR+
BUFFER
INR 7
VCCR 8
IC302 TL5001CDR
4 3 2
U.V.L.O
DEAD-TIME
REFERENCE
COMPARATOR
VOLTAGE
–
OSC
+
SWITCH
ERROR +
'ON'
AMP
– AT
'H'
S.C.P.
–
COMPARATOR 1
+
PWM
COMPARATOR
–
S.C.P.
+ LATCH
S.C.P.
COMPARATOR 2
5 6 7
1
8