Read Sony CDX-C8050X Service Manual online
46
46
1
24
HOLD
2
AGCVTH
3
LD
4
PD
5
A
6
B
7
C
8
D
9
VEE
VEE
VCC
APC PD AMP
+
–
–
+
–
–
+
–
–
+
–
–
VEE
VREF
1.25V
VCC
APC LD AMP
+
–
VC
VC
VCC
VCC
23 LC/PD
22 LD ON
21 HOLD SW
19 RF BOT
18 RFTC
17 RF I
16 RFO
10
F
15 RFE
11
E
14 FE
12
VC
13 TE
20 AGCCONT
+
–
–
+
–
–
+
–
–
+
–
–
VC
VEE
+
–
–
VC
VC
VC
VC
VC
VC
VC
+
–
–
+
–
–
+
–
–
+
–
+
–
–
VC
+
–
RF SUMMING AMP
RF EQ AMP
TRACKING
ERROR AMP
VEE
ERROR AMP
FOCUS
VC BUFFER
VCC
VEE
IC601 BA8270F
IC303, 304, 305 NJM2160AM-TE2
IC1 CXA2596M
• IC Block Diagrams
IC504 RN5VD33AA-TL
1
2
3
4
5
5
6
7
8
9
10
14
13
12
11
BUS ON
SWITCH
RESET
SWITCH
BATTERY
SWITCH
BUS ON
RST
BATT
CLK
VREF
DATA
GND
VCC
RST
BUS ON
BUS ON
CLK IN
BU IN
DATA IN
DATA OUT
1
36
FWD
2
REV
3
VCC2
4
VL0–
5
VL0+
6
VO4+
7
VO4–
8
VO3+
9
VO3–
S-GND
35 MUTE2
34 MUTE1
33 VIN4
31 VIN4+
30 VREF-IN
29 VIN1 (VREF)-SW
28 VREF-OUT (CH1)
10
VO2+
27 REG-OUT
11
VO2–
26 REG-IN
12
VO1+
13
VO1–
14
VCC1
15
VIN1
16
VIN1–A
17
VIN1+A
18
VIN1–B
25 VIN3+
24 VIN3–
23 VIN3
32 VIN4–
INPUT
OUTPUT
CONTROL
LEVEL
SHIFT
LEVEL
SHIFT
LEVEL
SHIFT
LEVEL
SHIFT
+
–
+
–
–
+
–
–
+
–
+
–
+
–
+
–
+
–
AMP-A
AMP-B
VIN1/VREF SW
MUTE1
MUTE2
CH2-CH4 OUTPUT
ON/OFF
CH1 OUTPUT
ON/OFF
GND
5V REG
+
–
–
+
–
22 VIN2+
21 VIN2–
20 VIN2
19 VIN1 +B
+
–
–
+
–
IC7 LA6556L-TE-L
IC302 TL5001CDR
REFERENCE
VOLTAGE
S.C.P.
COMPARATOR 1
SWITCH
'ON'
AT
'H'
'H'
PWM
COMPARATOR
S.C.P.
COMPARATOR 2
DEAD-TIME
COMPARATOR
S.C.P.
LATCH
OSC
U.V.L.O
ERROR
AMP
–
+
+
–
+
+
+
–
+
–
–
–
+
+
5
6
7
8
1
2
3
4
OUT
VCC
FEED BACK
INPUT
SCP
DEAD-TIME
CONTROL
RT
GND
1
2
3
4
5
CD
NC
OUT
VDD
GND
RESET
REFERENCE
REFERENCE
VCC
VCCL
VCCL
INL
SVRL
INML
INMR
SVRR
INR
VCCR
VCCR
VCCR
BUFFER
BUFFER
BUFFER
BUFFER
LIFT
AMP
SIGNAL
AMP
LIFT
AMP
SIGNAL
AMP
CL+
CL–
LGND
OUTL
OUTR
RGND
CR–
CR+
16
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
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