DOWNLOAD Sony MDX-C7900 / MDX-C7900R Service Manual ↓ Size: 5.85 MB | Pages: 60 in PDF or view online for FREE

Model
MDX-C7900 MDX-C7900R
Pages
60
Size
5.85 MB
Type
PDF
Document
Service Manual
Brand
Device
Car Audio
File
mdx-c7900-mdx-c7900r.pdf
Date

Sony MDX-C7900 / MDX-C7900R Service Manual ▷ View online

SERVICE MANUAL
MDX-C7900
FM/AM MINIDISC PLAYER
MDX-C7900R
FM/MW/LW MINIDISC PLAYER
US Model
Canadian Model
E Model
MDX-C7900
AEP Model
UK Model
MDX-C7900R
Model Name Using Similar Mechanism
NEW
Base Mechanism Type
MG-164KT-138
Optical Pick-Up Name
KMS-241A/J2N
SPECIFICATIONS
MDX-C7900/C7900R
Refer to RM-X4S Service Manual (9-925-
698-
[][]
) issued previously for information
of remote commander (RM-X4S) supplied
with this set.
Photo: MDX-C7900
– Continued on next page –
9-925-787-12
Sony Corporation
2001H0500-1
e Vehicle Company
C
 2001.8
Shinagawa Tec Service Manual Production Group
Ver 1.1  2001.08
– 2 –
TABLE  OF  CONTENTS
1.
SERVICE  NOTE
....................................................... 3
2.
GENERAL
Location of Controls (MDX-C7900) .............................. 4
Location of Controls (MDX-C7900R) ........................... 5
Resetting the Unit ........................................................... 6
Detaching the Front Panel ............................................... 6
Preparing the Rotary Commander .................................. 6
Setting the Clock ............................................................. 6
Installation (US, Canadian) ............................................ 7
Installation (AEP, UK, E) ............................................... 8
Connections ..................................................................... 10
3.
DISASSEMBLY
......................................................... 13
4.
ELECTRICAL  ADJUSTMENTS
Test Mode ........................................................................ 18
MD Section ..................................................................... 18
Tuner Section .................................................................. 18
5.
DIAGRAMS
5-1. Block Diagram – SERVO Section – ............................... 21
5-2. Block Diagram – MAIN Section – ................................. 23
5-3. Block Diagram
– DISPLAY/KEY CONTROL Section – ........................ 25
5-4. Block Diagram
– BUS CONTROL/POWER SUPPLY Section – ........... 27
5-5. Printed Wiring Boards
– MECHANISM DECK Section – ................................. 29
5-6. Schematic Diagram
– MECHANISM DECK Section – ................................. 31
5-7. Schematic Diagram – MAIN Section – .......................... 35
5-8. Printed Wiring Board – MAIN Section – ....................... 39
5-9. Printed Wiring Board – PANEL Section – ..................... 43
5-10. Schematic Diagram – PANEL Section – ........................ 45
5-11. IC Pin Function Description ........................................... 55
6.
EXPLODED  VIEWS
................................................ 64
7.
ELECTRICAL  PARTS  LIST
............................... 68
Ver 1.1
– 3 –
Flexible Circuit Board Repairing
• Keep the temperature of the soldering iron around 270 ˚C dur-
ing 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.
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.
ATTENTION  AU  COMPOSANT  AYANT  RAPPORT
À  LA  SÉCURITÉ!
LES  COMPOSANTS  IDENTIFIÉS  PAR  UNE  MARQUE  
!
SUR  LES  DIAGRAMMES  SCHÉMATIQUES  ET  LA  LISTE
DES  PIÈCES  SONT  CRITIQUES  POUR  LA  SÉCURITÉ
DE  FONCTIONNEMENT.  NE  REMPLACER  CES  COM-
POSANTS  QUE  PAR  DES  PIÈCES  SONY  DONT  LES
NUMÉROS  SONT  DONNÉS  DANS  CE  MANUEL  OU
DANS  LES  SUPPLÉMENTS  PUBLIÉS  PAR  SONY.
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  PUB-
LISHED  BY  SONY.
CAUTION
Use of controls or adjustments or performance of procedures
other than those specified herein may result in hazardous ra-
diation exposure.
SECTION  1
SERVICE  NOTE
• Type A/B Discrimination
[MAIN  BOARD] (Component Side)
IC700
MB90574PFV-G-113-BND (C7900R: Type A)
MB90574PFV-G-114-BND (C7900: Type A)
MB90F574PFV-G-113 (C7900R: Type B)
MB90F574PFV-G-114 (C7900: Type B)
– 4 –
SECTION  2
GENERAL
This section is extracted from
instruction manual.
Page of 60
Display

Sony MDX-C7900 / MDX-C7900R Service Manual ▷ Download

  • DOWNLOAD Sony MDX-C7900 / MDX-C7900R Service Manual ↓ Size: 5.85 MB | Pages: 60 in PDF or view online for FREE
  • Here you can View online or download the Service Manual for the Sony MDX-C7900 / MDX-C7900R in PDF for free, which will help you to disassemble, recover, fix and repair Sony MDX-C7900 / MDX-C7900R Car Audio. Information contained in Sony MDX-C7900 / MDX-C7900R Service Manual (repair manual) includes:
  • Disassembly, troubleshooting, maintenance, adjustment, installation and setup instructions.
  • Schematics, Circuit, Wiring and Block diagrams.
  • Printed wiring boards (PWB) and printed circuit boards (PCB).
  • Exploded View and Parts List.