Sony CDX-4000X / CDX-4005 / CDX-4800X Service Manual ▷ View online
33
IC901 BA4903ST-V5
IC1 CXA2596M-T6
3-16. IC BLOCK DIAGRAMS
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
REGULATOR
VREF
+
–
+
–
THERMAL
SHUT
DOWN
OVER
VOLTAGE
PROTECT
PROTECT
CIRCUIT ON
5
1
2
3
4
AMP
ON
AMP
B+
GND
VCC
BU+B
ON
ON
5.7V
34
IC7 LA6556
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
+
–
–
+
–
35
IC701 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
36
#2
#1
TU601
#1
#1
#1
#3
#1
#1
#2
#1
#2
#2
#2
#2
#2
#5
#5
#5
#1
#1
F901
8
1
2
3
6
4
5
19
7
18
10
17
14
11
15
16
12
12
13
9
MG-383Z-121//K
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.
Les composants identifiés par une
marque 0 sont critiques pour
la sécurité.
Ne les remplacer que par une piéce
portant le numéro spécifié.
marque 0 sont critiques pour
la sécurité.
Ne les remplacer que par une piéce
portant le numéro spécifié.
Ref. No.
Part No.
Description
Remark
4-1. CHASSIS SECTION
R
Ref. No.
Part No.
Description
Remark
R
1
X-3378-387-1 PANEL ASSY (CD), SUB
2
3-041-039-01 BUTTON (EJECT)
* 3
1-676-690-11 RELAY BOARD
4
X-3376-686-2 GEAR ASSY
5
3-030-909-02 DAMPER, OIL
6
X-3376-687-1 LOCK ASSY
7
3-713-786-51 SCREW +P 2X3
* 8
3-041-156-01 COVER
9
1-792-194-21 CORD (WITH CONNECTOR) (POWER)
* 10
3-041-173-01 BRACKET (CD)
* 11
3-019-565-01 BRACKET (IC)
12
3-376-464-11 SCREW (+PTT 2.6X6), GROUND POINT
* 13
A-3294-800-A MAIN BOARD, COMPLETE (4005)
* 13
A-3294-871-A MAIN BOARD, COMPLETE (4800X)
* 13
A-3294-878-A MAIN BOARD, COMPLETE (4000X)
* 14
3-041-176-01 HEAT SINK (4P)
* 15
3-041-174-01 HEAT SINK (REG)
* 16
3-041-261-01 BRACKET (TR)
* 17
3-041-155-01 CHASSIS
18
3-035-250-02 SCREW (LOCK)
* 19
X-3376-689-1 BRACKET (GEAR) ASSY
F901
1-532-877-11 FUSE (BLADE TYPE) (AUTO FUSE) 10A
TU601
A-3220-738-A TUNER UNIT (TUX-020)
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