Sony CDX-4480ESP Service Manual ▷ View online
– 1 –
Model Name Using Similar Mechanism
NEW
CD Drive Mechanism Type
MG-363W-121
Optical Pick-up Name
KSS-520A
SERVICE MANUAL
E Model
CDX-4480ESP
FM/AM COMPACT DISC PLAYER
MICROFILM
CD player section
System
Compact disc digital audio
system
system
Signal-to-noise ratio
90 dB
Frequency response
10 - 20,000 Hz
Wow and flutter
Below measurable limit
Tuner section
FM
Tuning range
FM tuning interval:
50 kHz/200 kHz switchable
87.5 - 108.0 MHz
(at 50 kHz step)
87.5 - 107.9 MHz
(at 200 kHz step)
50 kHz/200 kHz switchable
87.5 - 108.0 MHz
(at 50 kHz step)
87.5 - 107.9 MHz
(at 200 kHz step)
Antenna terminal
External antenna connector
Intermediate frequency
10.7 MHz
Usable sensitivity
8 dBf
Selectivity
75 dB at 400 kHz
Signal-to-noise ratio
65 dB (stereo),
68 dB (mono)
68 dB (mono)
Harmonic distortion at 1 kHz
0.5% (stereo),
0.3% (mono)
0.3% (mono)
Separation
35 dB at 1 kHz
Frequency response
30 - 15,000 Hz
Capture ratio
2 dB
AM
Tuning range
AM tuning interval:
9 kHz/10 kHz switchable
531 - 1,602 kHz
(at 9 kHz step)
530 - 1,710 kHz
(at 10 kHz step)
9 kHz/10 kHz switchable
531 - 1,602 kHz
(at 9 kHz step)
530 - 1,710 kHz
(at 10 kHz step)
Antenna terminal
External antenna connector
Intermediate frequency
10.71 MHz/450 kHz
Sensitivity
30
µ
V
SPECIFICATIONS
Power amplifier section
Outputs
Speaker outputs
(sure seal connectors)
(sure seal connectors)
Speaker impedance
4 - 8 ohms
Maximum power output
40 W
×
4 (at 4 ohms)
General
Outputs
Line outputs (2)
Power antenna relay
control lead
Power amplifier control
lead
Telephone ATT control
lead
Power antenna relay
control lead
Power amplifier control
lead
Telephone ATT control
lead
Tone controls
Bass
±
10 dB at 100 Hz
Treble
±
10 dB at 10 kHz
Power requirements
12 V DC car battery
(negative ground)
(negative ground)
Dimensions
Approx. 178
×
50
×
185 mm
(w/h/d)
Mounting dimensions
Approx. 182
×
53
×
162 mm
(w/h/d)
Mass
Approx. 1.2 kg
Supplied accessories
Parts for installation and
connections (1 set)
Front panel case (1)
connections (1 set)
Front panel case (1)
Design and specifications are subject to change without
notice.
notice.
– 2 –
NOTES ON CLEANING THE OBJECTIVE LENS
SAFETY-RELATED COMPONENT WARNING!!
COMPONENTS IDENTIFIED BY MARK
!
OR DOTTED LINE
WITH MARK
!
ON THE SCHEMATIC DIAGRAMS AND IN
THE PARTS LIST ARE CRITICAL TO SAFE OPERATION.
REPLACE THESE COMPONENTS WITH SONY PARTS WHOSE
PART NUMBERS APPEAR AS SHOWN IN THIS MANUAL OR
IN SUPPLEMENTS PUBLISHED BY SONY.
REPLACE THESE COMPONENTS WITH SONY PARTS WHOSE
PART NUMBERS APPEAR AS SHOWN IN THIS MANUAL OR
IN SUPPLEMENTS PUBLISHED BY SONY.
cotton swabs
objective lens
2-axis actuator
2-axis cover
slide base
optical pick-up
surface of objective lens
Notes:
Do not force to push the objective lens. Otherwise, the plate spring
supporting the objective lens will be bent, causing a deteriorated
RF waveform.
Never touch anything other than the objective lens. Otherwise, a
significant deterioration occurs in the RF waveform.
Do not force to push the objective lens. Otherwise, the plate spring
supporting the objective lens will be bent, causing a deteriorated
RF waveform.
Never touch anything other than the objective lens. Otherwise, a
significant deterioration occurs in the RF waveform.
Apply CD lens cleaner B-4 (Part No.:J-2501-000-A) to cotton swabs
(narrow type) (Part No.:J-2501-023-A) to be lightly wet. Use a force
(about 5 g (0.18 oz)) to make the objective lens in contact with the
bottom lightly, and clean the lens by spirals as following below.
Replace the cotton swab and repeat this cleaning two or three times.
(narrow type) (Part No.:J-2501-023-A) to be lightly wet. Use a force
(about 5 g (0.18 oz)) to make the objective lens in contact with the
bottom lightly, and clean the lens by spirals as following below.
Replace the cotton swab and repeat this cleaning two or three times.
SERVICE NOTE
CAUTION
Use of controls or adjustments or performance of proce-
dures other than those specified herein may result in haz-
ardous radiation exposure.
dures other than those specified herein may result in haz-
ardous radiation exposure.
Notes on Chip Component Replacement
•
Never reuse a disconnected chip component.
•
Notice that the minus side of a tantalum capacitor may be dam-
aged by heat.
aged by heat.
NOTES ON HANDLING THE OPTICAL PICK-UP BLOCK
OR BASE UNIT
OR BASE UNIT
The laser diode in the optical pick-up block may suffer electrostatic
breakdown because of the potential difference generated by the
charged electrostatic load, etc. on clothing and the human body.
During repair, pay attention to electrostatic breakdown and also use
the procedure in the printed matter which is included in the repair
parts.
The flexible board is easily damaged and should be handled with
care.
breakdown because of the potential difference generated by the
charged electrostatic load, etc. on clothing and the human body.
During repair, pay attention to electrostatic breakdown and also use
the procedure in the printed matter which is included in the repair
parts.
The flexible board is easily damaged and should be handled with
care.
NOTES ON LASER DIODE EMISSION CHECK
The laser beam on this model is concentrated so as to be focused on
the disc reflective surface by the objective lens in the optical pick-
up block. Therefore, when checking the laser diode emission, ob-
serve from more than 30 cm away from the objective lens.
the disc reflective surface by the objective lens in the optical pick-
up block. Therefore, when checking the laser diode emission, ob-
serve from more than 30 cm away from the objective lens.
NOTES ON PICK-UP FLEXIBLE BOARD
The pick-up flexible board in this set is secured to the optical pick-
up with an adhesive tape. Once the tape is removed, an adhering
force becomes weak, and it cannot be reused.
Therefore, if the optical pick-up is replaced, replace also the pick-
up flexible board with a new one.
up with an adhesive tape. Once the tape is removed, an adhering
force becomes weak, and it cannot be reused.
Therefore, if the optical pick-up is replaced, replace also the pick-
up flexible board with a new one.
– 3 –
TABLE OF CONTENTS
1. GENERAL
Location of Controls .................................................................. 4
Getting Started ........................................................................... 4
Setting the Clock ....................................................................... 5
CD Player .................................................................................. 5
Radio ......................................................................................... 6
Other Functions ......................................................................... 7
Connections ............................................................................... 9
Getting Started ........................................................................... 4
Setting the Clock ....................................................................... 5
CD Player .................................................................................. 5
Radio ......................................................................................... 6
Other Functions ......................................................................... 7
Connections ............................................................................... 9
2. DISASSEMBLY
2-1. Cover Assy ........................................................................... 11
2-2. Front Panel Assy .................................................................. 11
2-3. Sub Panel (1) Assy .............................................................. 12
2-4. CD Mechanism Block ......................................................... 12
2-5. Main Board ......................................................................... 13
2-6. Heat Sink ............................................................................. 13
2-7. Chassis (T) Sub Assy .......................................................... 14
2-8. Lever Assy ........................................................................... 14
2-9. Servo Board ......................................................................... 15
2-10. Roller Assy .......................................................................... 15
2-11. Chassis (OP) (O/S) Assy ..................................................... 16
2-12. Optical Pick-up Block ......................................................... 16
2-2. Front Panel Assy .................................................................. 11
2-3. Sub Panel (1) Assy .............................................................. 12
2-4. CD Mechanism Block ......................................................... 12
2-5. Main Board ......................................................................... 13
2-6. Heat Sink ............................................................................. 13
2-7. Chassis (T) Sub Assy .......................................................... 14
2-8. Lever Assy ........................................................................... 14
2-9. Servo Board ......................................................................... 15
2-10. Roller Assy .......................................................................... 15
2-11. Chassis (OP) (O/S) Assy ..................................................... 16
2-12. Optical Pick-up Block ......................................................... 16
3. ELECTRICAL ADJUSTMENTS
Tuner Section ........................................................................... 17
4. DIAGRAMS
4-1. IC Pin Descriptions ............................................................. 19
4-2. Circuit Boards Location ...................................................... 26
4-3. Block Diagram –CD Section– ............................................. 27
4-4. Block Diagram –Main Section– .......................................... 29
4-5. Schematic Diagram –CD Mechanism Section– .................. 31
4-6. Printed Wiring Boards –CD Mechanism Section– .............. 35
4-7. Printed Wiring Board –Main Section– ................................ 40
4-8. Schematic Diagram –Main Section– ................................... 45
4-9. Printed Wiring Board –Display Section– ............................ 49
4-10. Schematic Diagram –Display Section– ............................... 51
4-2. Circuit Boards Location ...................................................... 26
4-3. Block Diagram –CD Section– ............................................. 27
4-4. Block Diagram –Main Section– .......................................... 29
4-5. Schematic Diagram –CD Mechanism Section– .................. 31
4-6. Printed Wiring Boards –CD Mechanism Section– .............. 35
4-7. Printed Wiring Board –Main Section– ................................ 40
4-8. Schematic Diagram –Main Section– ................................... 45
4-9. Printed Wiring Board –Display Section– ............................ 49
4-10. Schematic Diagram –Display Section– ............................... 51
5. EXPLODED VIEWS
5-1. Chassis Section ................................................................... 57
5-2. Front Panel Section ............................................................. 58
5-3. CD Mechanism Section (1) ................................................. 59
5-4. CD Mechanism Section (2) ................................................. 60
5-5. CD Mechanism Section (3) ................................................. 61
5-2. Front Panel Section ............................................................. 58
5-3. CD Mechanism Section (1) ................................................. 59
5-4. CD Mechanism Section (2) ................................................. 60
5-5. CD Mechanism Section (3) ................................................. 61
6. ELECTRICAL PARTS LIST
.......................................... 62
– 4 –
SECTION 1
GENERAL
This section extracted from
instruction manual.