Sony CDX-L480N Service Manual ▷ View online
25
CDX-L480N
IC401 BD3803AF-FE2
22
21
20
19
18
17
16
15
14
13
12
I
2
C BUS
LOGIC
VCO
FADER
(0~-58,
-∞dB)
FADER
(0~-58,
-∞dB)
FADER
(0~-58,
-∞dB)
FADER
(0~-58,
-∞dB)
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
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
SDA
SCL
MUTE
SEL
ADJ
VCC
OUT-
FR
OUT-
RR
OUT-
FL
OUT-
RL
VCC
VCC/2
TONE
PASS
PASS
TONE
PASS
PASS
26
CDX-L480N
IC750 TDA8589J/N1
MUTE
MUTE
ENABLE
LOGIC
STANDBY/
MUTE
BATTERY
DETECTION
CHIP DETECT/
DIAGNOSTIC
PROTECTION/
DIAGNOSTIC
SWITCH
REGULATOR
SWITCH
REFERENCE
VOLTAGE
LOADDUMP
PROTECTION
TEMPERATURE
PROTECTION
BACK-UP
SWITCH
REGULATOR
1
3
5
7
9
11
13
15
17
19
21
23
25
27
29
31
33
35
37
2
4
6
8
10
12
14
16
18
20
22
24
26
28
30
32
34
36
TAB
OUT-FL-
OUT-FL+
OUT-RL-
OUT-RL+
IN-RL
S-GND
IN-RR
OUT-RR+
OUT-RR-
OUT-FR+
OUT-FR-
DIAG
ANT-REM
AMP-REM
SERVO5V
MECH6V
VP
B.UP+B
SDA
SCL
VP2
PGND3
SVR
IN-FL
IN-FR
BEEP
PGND2
VP1
STB
PGND1
RST
CRES
AUDIO8.3V
GND
PANEL+B
CBU
FL
RL
RR
VP
FR
I
2
C BUS
27
CDX-L480N
SECTION 3
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
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
3-1. CHASSIS SECTION
R
Ref. No.
Part No.
Description
Remark
R
1
X-3382-709-1 PANEL ASSY, SUB
2
3-042-244-11 SCREW (T)
3
X-3383-739-1 LOCK ASSY (S)
4
3-246-481-01 PLATE (TU), GROUND
5
3-246-450-01 BRACKET (CD)
6
3-376-464-11 SCREW (+PTT 2.6X6), GROUND POINT
7
A-3274-588-A MAIN BOARD, COMPLETE
F901
1-532-877-11 FUSE (BLADE TYPE) (AUTO FUSE) 10A
TU1
A-3220-945-A TUNER UNIT (TUX-031//Q3)
#1
7-685-792-09 SCREW +PTT 2.6X6 (S)
#2
7-685-790-01 SCREW +PTT 2.6X4 (S)
#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
3
2
1
#1
#1
6
6
4
7
F901
not supplied
#1
#1
not supplied
not
supplied
TU1
#5
#3
#1
#1
#3
#3
#3
#4
5
MG-393XC-121//Q
#2
not supplied
28
CDX-L480N
3-2. FRONT PANEL SECTION
Ref. No.
Part No.
Description
Remark
Ref. No.
Part No.
Description
Remark
#6
#6
56
59
57
58
51
60
not supplied
(KEY board)
(KEY board)
LCD901
not supplied
not supplied
not
supplied
not
supplied
not
supplied
not
supplied
not supplied
52
53
54
61
55
51
X-3384-031-1 PANEL SUB ASSY, FRONT
52
X-3383-104-3 BUTTON ASSY (S)
53
3-246-463-01 FILTER (IR)
54
3-246-466-01 PLATE (CD), LIGHT GUIDE
55
3-246-479-01 SPRING (RELEASE)
56
3-246-454-03 PANEL (CD), FRONT BACK
57
X-3383-264-2 CASE ASSY (for FRONT PANEL)
58
A-3337-982-A PANEL OVERALL ASSY, FRONT
59
1-694-977-11 CONDUCTIVE BOARD, CONNECTION
60
3-042-504-01 EMBLEM (NO.2.5), SONY
61
3-246-455-11 BUTTON (PRESET)
LCD901 1-805-078-11 DISPLAY PANEL, LIQUID CRYSTAL
#6
7-685-106-19 SCREW +P 2X10 TYPE2 NON-SLIT
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