Sony CDX-MP50 Service Manual ▷ View online
33
CDX-MP50
IC401 BD3802F (MAIN Board)
28
27
26
25
24
23
22
21
20
19
18
17
I
2
C BUS
LOGIC
16
15
VCO
FADER
(0~-58,
-∞dB)
FADER
(0~-58,
-∞dB)
FADER
(0~-58,
-∞dB)
FADER
(0~-58,
-∞dB)
EFFECT (OFF,6dB,
10dB,14dB)
EFFECT (OFF,6dB,
10dB,14dB)
BASS,TREBLE, MIDDLE
(-15dB~+15dB,1dB STEP)
BASS,TREBLE, MIDDLE
(-15dB~+15dB,1dB STEP)
VOLUME
(+23~-79dB,-∞dB
1dB STEP)
VOLUME
(+23~-79dB,-∞dB
1dB STEP)
INPUT GAIN
(0~15dB,1dB STEP)
INPUT SELECTOR
(4 STEREO INCLUDE 1 ISOLATION INPUT)
INPUT GAIN
(0~15dB,1dB STEP)
MUTE
MUTE
6
7
8
9
10
11
12
3
4
5
2
1
D-GND
A-GND
FIL
BUS-
RCH
AN
BUS-
LCH
TU-
RCH
TU-
LCH
CD-
RCH
CD-
LCH
D1
D2 DS11
13
DS21
14
DS31
SDA
SCL
MUTE
SEL
ADJ
VCC
OUT-
RL
OUT-
RR
OUT-
FL
OUT-
FR
DS32
DS22
DS12
VCC
VCC/2
ON
OFF
ON
OFF
TONE
PASS
PASS
TONE
PASS
PASS
34
CDX-MP50
SECTION 4
EXPLODED VIEWS
Ref. No.
Part No.
Description
Remark
4-1. CHASSIS SECTION
Ref. No.
Part No.
Description
Remark
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 are given in the last of this
parts list.
R
R
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.
1
X-3382-626-1 PANEL ASSY (CD), SUB
2
3-246-030-01 BUTTON (EJECT)
3
1-792-173-11 CABLE, FLAT (FFC) 12P (CNP903)
4
X-3376-686-4 GEAR ASSY
* 5
X-3376-689-2 BRACKET (GEAR) ASSY
6
3-030-909-03 DAMPER, OIL
7
3-713-786-51 SCREW +P 2X3
8
X-3376-687-3 LOCK ASSY
9
1-776-207-82 CORD (WITH CONNECTOR) (POWER)
10
3-246-007-01 BRACKET (CD)
11
3-922-535-11 SCREW (+BTT)
12
A-3274-832-A MAIN BOARD, COMPLETE
13
3-041-261-11 BRACKET (TR)
* 14
3-019-565-01 BRACKET (IC)
15
3-223-913-11 LABEL (OP CAUTION)
F901
1-532-877-11 FUSE (BLADE TYPE) (AUTO FUSE) 10A
TUX501 A-3220-887-A TUNER UNIT (TUX-030)
#1
#1
7-685-792-09 SCREW +PTT 2.6X6 (S)
#2
7-621-772-20 SCREW +B 2X5
#3
7-685-793-09 SCREW +PTT 2.6X8 (S)
#4
7-685-795-09 SCREW +PTT 2.6X12 (S)
#5
7-685-134-19 SCREW +P 2.6X8 TYPE2 NON-SLIT
9
10
2
MG-393MC-121
#1
#1
1
6
7
8
3
#1
#2
#2
#2
#1
#1
not supplied
not supplied
not supplied
not
supplied
supplied
not
supplied
supplied
not supplied
not supplied
(RELAY board)
(RELAY board)
4
5
11
11
12
13
14
15
TUX501
#3
#3
#3
#5
#3
#3
#4
F901
35
CDX-MP50
4-2. FRONT PANEL SECTION
Ref. No.
Part No.
Description
Remark
Ref. No.
Part No.
Description
Remark
51
A-3337-671-A OVERALL ASSY, FRONT PANEL
52
X-3383-499-1 PANEL (S) ASSY, FRONT
53
3-246-534-01 SPRING (RELEASE)
54
X-3383-169-1 BUTTON ASSY (S)
55
1-694-989-11 CONDUCTIVE BOARD, CONNECTION
56
X-3382-625-1 PANEL ASSY, FRONT BACK
57
X-3378-390-3 CASE ASSY (for FRONT PANEL)
LCD901 1-805-084-11 DISPLAY PANEL, LIQUID CRYSTAL
#6
#6
7-685-106-19 SCREW +P 2X10 TYPE2 NON-SLIT
#6
#6
not supplied
(DISPLAY board)
(DISPLAY board)
LCD901
not supplied
not supplied
not supplied
not
supplied
not
supplied
not supplied
not supplied
not supplied
51
52
53
54
55
56
57
36
CDX-MP50
4-3. CD MECHANISM SECTION (1)
(MG-393MC-121)
(MG-393MC-121)
Ref. No.
Part No.
Description
Remark
Ref. No.
Part No.
Description
Remark
101
A-3274-253-A DISC IN SW BOARD, COMPLETE
102
3-040-039-03 CHASSIS (T)
103
3-040-038-01 SPRING (LR), TENSION
104
3-040-050-01 LEVER (L)
105
3-040-022-01 RETAINER (ROLLER), SHAFT
106
3-040-044-01 ROLLER (S)
107
3-040-067-01 LEVER (R)
108
A-3301-980-A SHAFT ROLLER ASSY
109
3-040-037-01 GUIDE (DISC)
110
3-040-040-03 ARM (ROLLER)
111
A-3274-698-A SERVO BOARD, COMPLETE
112
3-221-779-02 BRACKET (MOTOR)
113
3-040-034-01 SPRING (RA), TENSION
114
3-040-042-01 WASHER
115
3-043-880-01 RING (RA), RETAINING
116
3-044-206-11 SCREW, SPECIAL
117
1-685-337-11 LOAD SW BOARD
M903
A-3315-039-A MOTOR SUB ASSY, LO (LOADING)
#7
7-627-553-37 SCREW, PRECISION +P 2X3 TYPE3
#8
7-628-253-00 SCREW, SPECIAL
#9
7-627-553-17 SCREW, PRECISION +P 2X2 TYPE3
102
104
103
109
101
107
105
105
108
114
114
115
116
106
113
111
110
112
117
#7
#8
#7
#8
#7
#9
M903
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