CDX-C8050X - Sony Car Audio Service Manual (repair manual)

Model
CDX-C8050X
Pages
64
Size
8.61 MB
Type
PDF
Document
Service Manual
Brand
Device
Car Audio
File
cdx-c8050x.pdf
Date

View Sony CDX-C8050X Service Manual online

1
Model Name Using Similar Mechanism
NEW
CD Drive Mechanism Type
MG-383V-121//Q
Optical Pick-up Name
KSS-720A
SERVICE MANUAL
US Model
CDX-C8050X
FM/AM COMPACT DISC PLAYER
• The tuner and CD sections have no adjustments.
AUDIO POWER SPECIFICATIONS
POWER OUTPUT AND TOTAL HARMONIC DISTORTION
19 watts per channel minimum continuous average power into
4 ohms, 4 channels driven from 10 Hz to 20 kHz with no more
than 1% total harmonic distortion.
Other Specifications
CD player section
System
Compact disc digital audio
system
Signal-to-noise ratio
90 dB
Frequency response
10 – 20,000 Hz
Wow and flutter
Below measurable limit
Laser Diode Properties
Material
GaAlAs
Wavelength
780 nm
Emission Duration
Continuous
Laser output power
Less than 44.6 µW*
This output is the value measured at a distance
of 200 mm from the objective lens surface on the
Optical Pick-up Block.
Tuner section
FM
Tuning range
87.5 – 107.9 MHz
Antenna terminal
External antenna connector
Intermediate frequency 10.7 MHz/450 kHz
Usable sensitivity
8 dBf
Selectivity
75 dB at 400 kHz
Signal-to-noise ratio
66 dB (stereo),
72 dB (mono)
Harmonic distortion at 1 kHz
0.6% (stereo),
0.3% (mono)
Separation
35 dB at 1 kHz
Frequency response
30 – 15,000 Hz
AM
Tuning range
530 – 1,710 kHz
Antenna terminal
External antenna connector
Intermediate frequency 10.7 MHz/450 kHz
Sensitivity
30 µV
SPECIFICATIONS
Power amplifier section
Outputs
Speaker outputs
(sure seal connectors)
Speaker impedance
4 – 8 ohms
Maximum power output 50 W 
× 4 (at 4 ohms)
General
Outputs
Audio outputs
Power antenna relay
control lead
Power amplifier control
lead
Telephone ATT control
lead
Power requirements
12 V DC car battery
(negative ground)
Dimensions
Approx. 178 
× 50 × 183 mm
(7 
1/8
 
× 2 × 7 
1/4
 
in.)
(w/h/d)
Mounting dimensions
Approx. 182 
× 53 × 162 mm
(7 
1/4
 
× 2 
1/8
 
× 6 
1/2
 
in.)
(w/h/d)
Mass
Approx. 1.3 kg (2 lb. 14 oz.)
Supplied accessories
Card remote commander RM-X91
Parts for installation and
connections (1 set)
Front panel case (1)
Design and specifications are subject to change without
notice.
Ver 1.2  2001.06
9-870-128-12
2001F0400-1
© 2001.6
Sony Corporation
e Vehicle Company
Shinagawa Tec Service Manual Production Group
2
TABLE OF CONTENTS
1. GENERAL
Location of controls ................................................................. 3
Getting Started ......................................................................... 3
Setting the clock ...................................................................... 3
CD/MD .................................................................................... 4
Radio ....................................................................................... 5
DSP .......................................................................................... 6
Other Functions ....................................................................... 7
TV/Video ................................................................................. 8
Additional Information ............................................................ 9
Connections ........................................................................... 10
2. DISASSEMBLY
2-1.   Sub Panel Assy .................................................................. 12
2-2.   CD Mechanism Block ....................................................... 12
2-3.   Main Board ....................................................................... 13
2-4.   Heat Sink ........................................................................... 13
2-5.   Chassis (T) Assy ................................................................ 14
2-6.   Lever Assy ......................................................................... 14
2-7.   Servo Board ....................................................................... 15
2-8.   ARM Roller Assy .............................................................. 15
2-9.   Chassis (OP) Assy ............................................................. 16
2-10. Optical Pick-up Block ....................................................... 16
3. DIAGRAMS
3-1.   IC Pin Descriptions ........................................................... 17
3-2.   Block Diagram –CD Section– ........................................... 26
3-3.   Block Diagram –Tuner Section– ....................................... 27
3-4.   Block Diagram –Display Section– .................................... 28
3-5.   Circuit Boards Location .................................................... 29
3-6.   Printed Wiring Boards –CD Mechanism Section– ............ 30
3-7.   Schematic Diagram –CD Mechanism Section (1/2)– ....... 32
3-8.   Schematic Diagram –CD Mechanism Section (2/2)– ....... 33
3-9.   Printed Wiring Board –Main Section– .............................. 34
3-10. Schematic Diagram –Main Section (1/4)– ........................ 36
3-11. Schematic Diagram –Main Section (2/4)– ........................ 37
3-12. Schematic Diagram –Main Section (3/4)– ........................ 38
3-13. Schematic Diagram –Main Section (4/4)– ........................ 39
3-14. Printed Wiring Board –DSO Section– .............................. 40
3-15. Schematic Diagram –DSO Section– ................................. 41
3-16. Printed Wiring Board –Sub (CD) Section– ....................... 42
3-17. Schematic Diagram –Sub (CD) Section– .......................... 43
3-18. Printed Wiring Board –Key Section– ................................ 44
3-19. Schematic Diagram –Key Section– .................................. 45
4. EXPLODED VIEWS
4-1.   Chassis Section ................................................................. 48
4-2.   Front Panel Section ........................................................... 49
4-3.   CD Mechanism Section (1) ............................................... 50
4-4.   CD Mechanism Section (2) ............................................... 51
4-5.   CD Mechanism Section (3) ............................................... 52
5. ELECTRICAL PARTS LIST
........................................ 53
SAFETY-RELATED  COMPONENT  WARNING!!
COMPONENTS  IDENTIFIED  BY  MARK  0  OR  DOTTED  LINE
WITH  MARK  
0  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.
SERVICE NOTES
NOTES ON HANDLING THE OPTICAL PICK-UP BLOCK
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.
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.
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.
Ver 1.1  2000. 08
CAUTION
Use of controls or adjustments or performance of procedures
other than those specified herein may result in hazardous
radiation exposure.
If the optical pick-up block is defective, please replace the whole
optical pick-up block.
Never turn the semi-fixed resistor located at the side of optical
pick-up block.
optical pick-up block
semi-fixed resistor
3
SECTION 1
GENERAL
This section is extracted
from instruction manual.
4

Download Sony CDX-C8050X Service Manual (Repair Manual)

Here you can view online and download Sony CDX-C8050X Service Manual in PDF. CDX-C8050X service manual will guide through the process and help you recover, restore, fix, disassemble and repair Sony CDX-C8050X Car Audio. Information contained in service manuals typically includes schematics / circuit diagrams, wiring diagrams, block diagrams, printed wiring boards, exploded views, parts list, disassembly / assembly, pcb.