Sony CDX-C8000R / CDX-C8000RX Service Manual ▷ View online
49
49
SUB (CD) BOARD
3-19. SCHEMATIC DIAGRAM — KEY SECTION —
Note:
• Voltage is dc with respect to ground under no-signal
• Voltage is dc with respect to ground under no-signal
(detuned) condition.
no mark : FM
no mark : FM
(Page 47)
CDX-C8000R/C8000RX
50
50
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
SCOUT
MRO
MPTH
TCON
OSCO
OSCI
VSSD
VDDD
DAVN
SDA
VREF
MPX
VSSA
VDDA
AFIN
MAD
PSWN
SCL
2
1
6
15
11
13
16
14
12
INTERFACE
REGISTER
SIGNAL QUALITY
DECODER
CLOCKED
COMPARATOR
POWER SUPPLY
& RESET
TEST
CONTROL
OSCILLATOR
& CLOCK
PAUSE
DETECTOR
MULTI
PATH
DETECTOR
57kHz
8th ORDER
BAND-PASS FILTER
RDS/RDBS
DECODER
RDS/RDBS
DEMODULATOR
IIC BUS SLAVE
TRANSCEIVER
17
18
CIN
19
LVIN
20
8
7
DATA
CLOCK
DATA
CLOCK
4
4
5
9
10
3
4
5
IC601 BA8270F
IC201 SAA6588T/V2-118
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
51
IC301 TDA7402TR
33
34
35
36
37
38
39
40
41
42
43
44
1 2 3 4 5 6 7 8 9 10 11
28 27
30 29
32 31
MONO
FADER
MONO
FADER
MONO
FADER
SUBWOOFER
+PHASE
CONTROL
MIXER
OUTPUT CONTROL
LP
HP
BASS
TRABLE
VOLUME
SOFT MUTE
MUTE
IN GAIN
BEEP
PLL
PIL, DET
LOUDNESS
LOUDNESS
COMPANDER
IN GAIN
+ AUTO
ZERO
MAIN SOURCE
SELECTOR
MIXING
SELECTOR
SECOND SOURCE
SELECTOR
II
C-BUS
DIGITAL
CONTROL
DEMODULATOR
+STEREO ADJUST
+STEREO BLAND
PILOT
CANCELLATION
LP
MALTI
PATH
DETECTOR
AM/FM
NOISE
BLANKER
PULSE
FORMER
SUPPLY
LP
S & H
HIGH OUT
QUAL.
D/A
12
13
14
15
16
17
18
19
22
21
20
INPUT MULTIPLEXER
CD L
CD R
AUX L
SE2L
AUX R
SE2R
FD2L+
FD2L
–
FD2R+
FD2R
–
AM
MD2G
MD2
MD1G (SE4R)
MD1 (SE4L)
MUX
VREF
AC OUTL
AC OUTR
SWINL
SWINR
ACINLF
ACINLR
ACINLR
ACINRR
OUTLF
OUTLR
OUTRF
OUTRR
OUTSWL
OUTSWR
OUTSSL
OUTSSR
26 25
24 23
AMIF
MPX
LEVEL
MP IN
MP OUT
QUAL
MUTE
GND
SDA
SCL
VDD
VOICE
BANDPASS
52
#2
8
#2
#4
#4
#4
#6
#3
#4
#4
#2
TUX201
#2
#1
#1
#1
#5
#5
#5
#6
#6
F901
1
2
3
6
24
4
5
7
16
17
14
18
15
13
11
22
21
23
11
12
19
20
10
9
MG-383V-121//Q
SECTION 4
EXPLODED VIEWS
NOTE:
• The mechanical parts with no reference
number in the exploded views are not supplied.
• Items marked “*” are not stocked since
they are seldom required for routine service.
Some delay should be anticipated
when ordering these items.
Some delay should be anticipated
when ordering these items.
• -XX and -X mean standardized parts, so
they may have some difference from the
original one.
original one.
• Color Indication of Appearance Parts
Example :
KNOB, BALANCE (WHITE) ... (RED)
Parts Color Cabinet’s Color
• Accessories and packing materials and
hardware (# mark) list are given in
the last of this parts list.
the last of this parts list.
The components identified by
mark 0 or dotted line with mark
0 are critical for safety.
Replace only with part number
specified.
mark 0 or dotted line with mark
0 are critical for safety.
Replace only with part number
specified.
Ref. No.
Part No.
Description
Remark
4-1. CHASSIS SECTION
R
Ref. No.
Part No.
Description
Remark
R
1
X-3378-512-2 PANEL ASSY, SUB
2
3-040-990-01 BUTTON (EJECT)
* 3
1-677-863-11 SUB (CD) BOARD
4
X-3376-699-2 GEAR ASSY
5
3-030-909-02 DAMPER, OIL
6
X-3377-621-2 LOCK ASSY
7
3-713-786-51 SCREW +P 2X3
* 8
3-040-995-01 COVER
9
1-776-527-71 CORD (WITH CONNECTOR) (ISO) (POWER)
* 10
3-041-012-01 BRACKET (CD)
11
3-376-464-11 SCREW (+PTT 2.6X6), GROUND POINT
12
3-045-878-01 PLATE (TU), GROUND
* 13
3-040-998-01 BRACKET (IC)
* 14
3-040-996-32 HEAT SINK (6P)
* 15
3-041-261-01 BRACKET (TR)
* 16
A-3294-907-A MAIN BOARD, COMPLETE (C8000RX:TYPE1)
* 16
A-3294-908-A MAIN BOARD, COMPLETE (C8000R:TYPE1)
* 16
A-3294-911-A MAIN BOARD, COMPLETE (C8000RX:TYPE2)
* 16
A-3294-912-A MAIN BOARD, COMPLETE (C8000RX:TYPE3)
* 16
A-3294-913-A MAIN BOARD, COMPLETE (C8000R:TYPE2)
* 16
A-3294-914-A MAIN BOARD, COMPLETE (C8000R:TYPE3)
* 17
3-040-994-11 CHASSIS
18
1-792-602-11 CORD (WITH CONNECTOR) (SUB OUT)
19
3-045-877-01 CUSHION (TU)
* 20
3-047-865-01 SHEET (MAIN), INSULATING
* 21
3-045-994-01 COVER (DSP), SHIELD
* 22
A-3294-909-A DSO BOARD, COMPLETE
* 23
3-045-138-01 CASE (DSP), SHIELD
24
3-035-250-02 SCREW (LOCK)
F901
1-532-877-11 FUSE (BLADE TYPE) (AUTO FUSE) 10A
TUX201 A-3220-738-A TUNER UNIT (TUX-020)
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