CDX-DAB500A, CDX-DAB500U - Sony Car Audio Service Manual (repair manual)

cdx-dab500a, cdx-dab500u service manual
Model
CDX-DAB500A CDX-DAB500U
Pages
50
Size
4.45 MB
Type
PDF
Document
Service Manual
Brand
Device
Car Audio
File
cdx-dab500a-cdx-dab500u.pdf
Date

Read Sony CDX-DAB500A / CDX-DAB500U Service Manual online

SERVICE MANUAL
Sony Corporation
Published by Sony Techno Create Corporation
CDX-DAB500A/DAB500U
SPECIFICATIONS
9-893-558-02
2013L33-1
© 
2013.12
AEP Model
UK Model
Ver. 1.1  2013.12
Model Name Using Similar Mechanism
CDX-GT574UI
Mechanism Type
MG-101CA-188
Optical Pick-up Name
DAX-25A
•  The tuner and CD sections have no adjustments.
DAB/FM/MW/LW DIGITAL RADIO CD PLAYER
Tuner section
DAB/DAB+/DMB-R
Tuning range: 174.928 – 239.200 MHz
Usable sensitivity: –97 dBm
Antenna (aerial) terminal:
External antenna (aerial) connector
FM
Tuning range: 87.5 – 108.0 MHz
Antenna (aerial) terminal: 
External antenna (aerial) connector
Intermediate frequency: 25 kHz
Usable sensitivity: 8 dBf
Selectivity: 75 dB at 400 kHz
Signal-to-noise ratio: 80 dB (stereo)
Separation: 50 dB at 1 kHz
Frequency response: 20 – 15,000 Hz
MW/LW
Tuning range: 
MW: 531 – 1,602 kHz
LW: 153 – 279 kHz
Antenna (aerial) terminal: 
External antenna (aerial) connector
Intermediate frequency: 
9,124.5 kHz or 9,115.5 kHz/4.5 kHz
Sensitivity: MW: 26 μV, LW: 45 μV
Inputs: 
Remote controller input terminal
DAB antenna (aerial) input terminal
FM/MW/LW antenna (aerial) input terminal
AUX input jack (stereo mini jack)
USB port
Power requirements: 12 V DC car battery 
(negative ground (earth))
Dimensions: Approx. 178 u 50 u 177 mm 
(7
1
/
8
 u 2 u 7 in) (w/h/d)
Mounting dimensions: Approx. 182 u 53 u 160 mm 
(7
1
/
4
 u 2
1
/
8
 u 6
5
/
16
 in) (w/h/d)
Mass: Approx. 1.2 kg (2 lb 11 oz)
Supplied accessories: 
Remote commander: RM-X211
 
Design and specifications are subject to change 
without notice.
General
Outputs: 
Audio outputs terminal (front, rear/sub 
switchable)
Power antenna (aerial)/Power amplifier control 
terminal (REM OUT)
Power amplifier section
Output: Speaker outputs
Speaker impedance: 4 – 8 ohms
Maximum power output: 52 W u 4 (at 4 ohms)
CD Player section
Signal-to-noise ratio: 120 dB
Frequency response: 10 – 20,000 Hz
Wow and flutter: Below measurable limit
USB Player section
Interface: USB (Full-speed)
Maximum current: 1 A
DAB antenna (aerial) (CDX-DAB500A only)
Parts for installation and connections (1 set)
Photo: CDX-DAB500U
•  CDX-DAB500A is the model that attached 
the fi lm antenna to CDX-DAB500U.
  Model name of main unit is CDX-DAB500U.
CDX-DAB500A/DAB500U
2
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.
FLEXIBLE  CIRCUIT  BOARD  REPAIRING
• 
Keep the temperature of soldering iron around 270 °C during 
repairing.
• 
Do not touch the soldering iron on the same conductor of the 
circuit board (within 3 times).
• 
Be careful not to apply force on the conductor when soldering 
or unsoldering.
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.
CAUTION
Use of controls or adjustments or performance of procedures 
other than those specifi ed herein may result in hazardous radia-
tion exposure.
This product is protected by certain 
intellectual property rights of Microsoft 
Corporation. Use or distribution of such 
technology outside of this product is 
prohibited without a license from Microsoft 
or an authorized Microsoft subsidiary.
Android is a trademark of Google Inc. Use 
of this trademark is subject to Google 
Permissions.
ZAPPIN and Quick-BrowZer are
trademarks of Sony Corporation.
Windows Media is either a registered 
trademark or trademark of Microsoft 
Corporation in the United States and/or 
other countries.
iPhone, iPod, iPod classic, iPod nano, and 
iPod touch are trademarks of Apple Inc., 
registered in the U.S. and other countries.
MPEG Layer-3 audio coding technology 
and patents licensed from Fraunhofer IIS 
and Thomson.
1. 
SERVICING  NOTES 
 .............................................  
3
2. GENERAL 
 ..................................................................  
6
3. DISASSEMBLY
3-1. Disassembly 
Flow 
...........................................................  10
3-2.  Mini Fuse (Blade Type) (10A/32V) (FU1), Cover .........   10
3-3.  Sub Panel Block ..............................................................   11
3-4.  CD Mechanism Deck (MG-101CA-188) .......................   11
3-5. MAIN 
Board 
...................................................................  12
3-6. SERVO 
Board 
.................................................................  12
3-7.  Chassis (T) Sub Assy ......................................................   13
3-8. Roller 
Arm 
Assy 
..............................................................  13
3-9. Chassis 
(OP) 
Assy 
...........................................................  14
3-10.  Chucking Arm Sub Assy .................................................   14
3-11. Sled Motor Assy 
..............................................................   15
3-12.  Optical Pick-up Section ..................................................   15
3-13. Optical Pick-up ...............................................................   15
4. DIAGRAMS
4-1.  Block Diagram - SERVO Section - ................................   16
4-2.  Block Diagram - MAIN Section - ...................................   17
4-3. Block 
Diagram 
- PANEL, POWER SUPPLY Section - ...........................   18
4-4.  Schematic Diagram - MAIN Section (1/4) - ...................   20
4-5.  Schematic Diagram - MAIN Section (2/4) - ...................   21
4-6.  Schematic Diagram - MAIN Section (3/4) - ...................   22
4-7.  Schematic Diagram - MAIN Section (4/4) - ...................   23
4-8. Printed 
Wiring 
Board 
- MAIN Section (1/2) (Suffi x-11) - .................................   24
4-9. Printed 
Wiring 
Boards 
- MAIN Section (2/2) (Suffi x-11) - .................................   25
4-10. Printed Wiring Board 
- MAIN Section (1/2) (Suffi x-12) - .................................   26
4-11. Printed Wiring Boards 
- MAIN Section (2/2) (Suffi x-12) - .................................   27
4-12.  Printed Wiring Board - KEY Board (Suffi x-11) - ...........   28
4-13.  Printed Wiring Board - KEY Board (Suffi x-21) - ...........   29
4-14.  Schematic Diagram - KEY Board - ................................   30
5. 
EXPLODED  VIEWS
5-1. Main 
Section 
...................................................................  40
5-2.  Front Panel Section .........................................................   41
5-3.  CD Mechanism Deck Section (MG-101CA-188) ..........   42
6. 
ELECTRICAL  PARTS  LIST 
 ..............................   43
Accessories are given in the last of the electrical parts list.
TABLE  OF  CONTENTS
Note: Refer to the servicing notes “MAIN AND KEY BOARDS DIS-
CRIMINATION” (page 5) for how to distinguish Suffi x-11 and 
Suffi x-12 of the MAIN board, Suffi x-11 and Suffi x-21 of the 
KEY board.
CDX-DAB500A/DAB500U
3
SECTION  1
SERVICING  NOTES
NOTES  ON  HANDLING  THE OPTICAL  PICK-UP  
BLOCK  OR  BASE  UNIT
The laser diode in the optical pick-up block may suffer electro-
static break-down because of the potential difference generated by 
the charged electrostatic load, etc. on clothing and the human body.
During repair, pay attention to electrostatic break-down and also 
use the procedure in the printed matter which is included in the 
repair parts.
The fl exible board is easily damaged and should be handled with 
care.
NOTES  ON  LASER  DIODE  EMISSION  CHECK
Never look into the laser diode emission from right above when 
checking it for adjustment. It is feared that you will lose your sight.
If the optical pick-up block is defective, please replace the whole 
optical pick-up block.
Never turn the semi-fi xed resistor located at the side of optical 
pick-up block.
optical pick-up
semi-fixed resistor
UNLEADED  SOLDER
Boards requiring use of unleaded solder are printed with the lead-
free mark (LF) indicating the solder contains no lead.
(Caution:  Some printed circuit boards may not come printed with 
the lead free mark due to their particular size)
 : LEAD  FREE  MARK
Unleaded solder has the following characteristics.
•  Unleaded solder melts at a temperature about 40 °C higher 
than ordinary solder.
 
Ordinary soldering irons can be used but the iron tip has to be 
applied to the solder joint for a slightly longer time.
 
Soldering irons using a temperature regulator should be set to 
about 350 °C.
Caution: The printed pattern (copper foil) may peel away if 
the heated tip is applied for too long, so be careful!
• Strong 
viscosity
 
Unleaded solder is more viscous (sticky, less prone to fl ow) 
than ordinary solder so use caution not to let solder bridges 
occur such as on IC pins, etc.
• 
Usable with ordinary solder
 
It is best to use only unleaded solder but unleaded solder may 
also be added to ordinary solder.
Notes
t For safety, turn off the ignition before cleaning 
the connectors, and remove the key from the 
ignition switch.
t Never touch the connectors directly with your 
fingers or with any metal device.
REPLACING  THE  LITHIUM  BATTERY  OF  
THE  REMOTE  COMMANDER
When the battery becomes weak, the range 
of the remote commander becomes shorter. 
Replace the battery with a new CR2025 
lithium battery. Use of any other battery 
may present a risk of fire or explosion.
Notes on the lithium battery
t Keep the lithium battery out of the reach of 
children. Should the battery be swallowed, 
immediately consult a doctor.
t Wipe the battery with a dry cloth to assure a 
good contact.
t Be sure to observe the correct polarity when 
installing the battery.
t Do not hold the battery with metallic tweezers, 
otherwise a short-circuit may occur.
CLEANING  THE  CONNECTORS
The unit may not function properly if the 
connectors between the unit and the front 
panel are not clean. In order to prevent this, 
detach the front panel and clean the connectors 
with a cotton swab. Do not apply too much 
force. Otherwise, the connectors may be 
damaged.
+ side up
WARNING
Battery may explode if mistreated.
Do not recharge, disassemble, or dispose 
of in fire.
CDX-DAB500A/DAB500U
4
NOTE  FOR  REPLACEMENT  OF  THE  USB  CONNEC-
TOR (CN903)  AND  AUX  JACK (J901)
To replace the USB connector and AUX jack requires alignment.
1.  Insert the USB connector and AUX jack into the front panel.
2.  Place the KEY board on the front panel and align the terminals 
of the USB connector and AUX jack with the holes in the KEY 
board.
3.  Solder seven terminals of the connector and three terminals of 
the jack.
KEY board
front panel
USB (socket) connector
(CN903)
AUX jack
(J901)
TEST  DISCS
Use following TEST DISC (for CD) when this set confi rms  the 
operation and checks it.
Part No.
   
Description
3-702-101-01 DISC 
(YEDS-18), 
TEST
4-225-203-01 DISC 
(PATD-012), 
TEST
NOTE  FOR  REPLACEMENT  OF  THE  SERVO  BOARD
When repairing, the complete SERVO board should be replaced 
since any parts in the SERVO board cannot be repaired.
NOTE  FOR  REPLACEMENT  OF  THE  SENSOR  BOARD
When the SENSOR board is defective, exchange the MECHANI-
CAL BLOCK (11CA) ASSY.
EXTENSION  CABLE  AND  SERVICE  POSITION
When repairing or servicing this set, connect the jig cable (exten-
sion cable (CD mecha)) as shown below.
•  Connect the MAIN board (CN700) and the SERVO board 
(CN401) with the jig cable.
Jig cable:
Part No.
   
Description
A-1818-424-A 
EXTENSION CABLE (CD MECHA)
SERVO board
(CN401)
MAIN board
(CN700)
extension cable (CD mecha)
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