MEX-DV800, MEX-DV808, MEX-DV80EE, MEX-DV80M - Sony Car Audio Service Manual (repair manual). Page 2

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2
1. 
SERVICING  NOTES 
 .............................................  
3
2. GENERAL
  ..................................................................   6
3. DISASSEMBLY
3-1.   Disassembly Flow ...........................................................   12
3-2.   Sub Panel Complete Assy ...............................................   12
3-3.   DVD Mechanism Deck Block ........................................   13
3-4.   DC Fan (25X25) (M901), MAIN Board .........................   13
3-5.   Chassis (T612Z) Sub Assy, SENSOR Board ..................   14
3-6.   Chassis (OP, Z) Complete Assy ......................................   14
3-7.   SERVO Board .................................................................   15
4. 
ELECTRICAL  CHECK 
 .........................................   16
5. DIAGRAMS
5-1.  Block Diagram - SERVO/VIDEO Section - ...................   17
5-2.  Block Diagram - TUNER/AUDIO Section - ..................   18
5-3. Block 
Diagram 
 
- PANEL/POWER SUPPLY Section - ............................   19
5-4.  Schematic Diagram - SERVO Board (1/3) - ...................   21
5-5.  Schematic Diagram - SERVO Board (2/3) - ...................   22
5-6. Schematic 
Diagram 
- SERVO Board (3/3), SENSOR Board - .......................   23
5-7. Printed 
Wiring 
Boards 
- SERVO Board, SENSOR Board - ................................   24
5-8.  Printed Wiring Board - MAIN Board - ...........................   25
5-9.  Schematic Diagram - MAIN Board (1/2) - .....................   26
5-10.  Schematic Diagram - MAIN Board (2/2) - .....................   27
5-11.  Printed Wiring Boards - KEY Section - ..........................   28
5-12.  Schematic Diagram - KEY Section - ..............................   29
6. 
EXPLODED  VIEWS
6-1. Main 
Section 
...................................................................  42
6-2.  Front Panel Section .........................................................   43
6-3.  DVD Mechanism Deck Section (MG-612L-187) ..........   44
7. 
ELECTRICAL  PARTS  LIST
  ..............................   45
Accessories are given in the last of the electrical parts list.
Note: In this set, the SERVO board has been changed 
in the midway of production.
 
Printed wiring boards, schematic diagrams and 
electrical parts list of the SERVO board that 
have been described to this service manual 
are information before it is changed.
 
Refer to supplement-1 for the SERVO board 
after it changes.
TABLE  OF  CONTENTS
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  COMPONET  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.
CAUTION
RADIATION WHEN OPEN AND INTERLOCKS DEFEATED.
DO NOT VIEW DIRECTLY WITH OPTICAL INSTRUMENTS.
:CLASS 1M VISIBLE/INVISIBLE LASER
This label is located on the bottom of the 
chassis.
This label is located on the drive unit’s internal 
chassis.
“DVD VIDEO,” “DVD-R,” “DVD-RW,” 
“DVD+R,” and “DVD+RW” are trademarks.
“DivX” and “DivX Certified” are 
registered trademarks or trademarks 
of DivX, Inc.
THIS PRODUCT IS LICENSED UNDER THE 
MPEG-4 VISUAL PATENT PORTFOLIO 
LICENSE FOR THE PERSONAL AND NON-
COMMERCIAL USE OF A CONSUMER FOR 
DECODING MPEG-4 VIDEO THAT WAS 
ENCODED BY A CONSUMER ENGAGED IN 
A PERSONAL AND NON-COMMERCIAL 
ACTIVITY AND/OR WAS OBTAINED FROM 
A VIDEO PROVIDER LICENSED BY MPEG 
LA TO PROVIDE MPEG-4 VIDEO. NO 
LICENSE IS GRANTED OR SHALL BE 
IMPLIED FOR ANY OTHER USE. 
ADDITIONAL INFORMATION INCLUDING 
THAT RELATING TO PROMOTIONAL, 
INTERNAL AND COMMERCIAL USES AND 
LICENSING MAY BE OBTAINED FROM 
MPEG LA, LLC. SEE 
HTTP://WWW.MPEGLA.COM
Manufactured under license 
from Dolby Laboratories.
“Dolby” and the double-D 
symbol are trademarks of Dolby Laboratories.
Windows Media, and the 
Windows logo are trademarks 
or registered trademarks of 
Microsoft Corporation in the 
United States and/or other countries.
Ver. 1.1
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