MDX-C8970R — Sony Car Audio Service Manual (repair manual)

Model
MDX-C8970R
Pages
84
Size
7.69 MB
Type
PDF
Document
Service Manual
Brand
Device
Car Audio
File
mdx-c8970r.pdf
Date

View Sony MDX-C8970R Service Manual online

MICROFILM
SERVICE MANUAL
Model Name Using Similar Mechanism
MDX-C7970R
Base Mechanism Type
MG-164NF-138
Optical Pick-Up Name
KMS-241B/J1NP
AEP Model
UK Model
SPECIFICATIONS
MDX-C8970R
FM/MW/LW MINIDISC PLAYER
2
1.
SERVICE  NOTE
.......................................................
3
2.
GENERAL
Location of controls ........................................................
4
Resetting the unit ............................................................
4
Detaching the front panel ................................................
4
Preparing the rotary commander ....................................
4
Setting the clock ..............................................................
4
Installation .......................................................................
5
Connections .....................................................................
6
Installation for microphone and rotary commander .......
9
3.
DISASSEMBLY
......................................................... 11
4.
ELECTRICAL  ADJUSTMENTS
Test Mode ........................................................................ 17
MD Section ..................................................................... 17
Tuner Section .................................................................. 17
5.
DIAGRAMS
5-1. Block Diagram  – SERVO Section – .............................. 21
5-2. Block Diagram  – TUNER Section – ............................. 22
5-3. Block Diagram  – MAIN Section – ................................ 23
5-4. Block Diagram
– DISPLAY/KEY CONTROL Section – ........................ 24
5-5. Block Diagram
– BUS CONTROL/POWER SUPPLY Section – ........... 25
5-6. Note for Printed Wiring Boards and
Schematic Diagrams ....................................................... 26
5-7. Printed Wiring Board  – SERVO/SENSOR Boards – .... 27
5-8. Schematic Diagram
 – SERVO (1/2)/SENSOR Boards – ............................... 28
5-9. Schematic Diagram  – SERVO Board (2/2) – ................ 29
5-10. Printed Wiring Board
– MAIN Board (Component Side) – .............................. 30
5-11. Printed Wiring Board
– MAIN Board (Conductor Side) – ................................ 31
5-12. Schematic Diagram  – MAIN Board (1/5) – .................. 32
5-13. Schematic Diagram  – MAIN Board (2/5) – .................. 33
5-14. Schematic Diagram  – MAIN Board (3/5) – .................. 34
5-15. Schematic Diagram  – MAIN Board (4/5) – .................. 35
5-16. Schematic Diagram  – MAIN Board (5/5) – .................. 36
5-17. Printed Wiring Board  – POWER Board – ..................... 38
5-18. Schematic Diagram  – POWER Board – ........................ 39
5-19. Printed Wiring Board  – DISPLAY Board – .................. 40
5-20. Schematic Diagram  – DISPLAY Board – ..................... 41
5-21. Printed Wiring Board  – RELAY Board – ...................... 42
5-22. Schematic Diagram  – RELAY Board – ......................... 43
5-23. IC Pin Function Description ........................................... 52
6.
EXPLODED  VIEWS
................................................ 66
7.
ELECTRICAL  PARTS  LIST
............................... 70
TABLE  OF  CONTENTS
3
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.
SECTION  1
SERVICE  NOTE
• Model Identification
The destination is expressed with the model according to the lan-
guage of Program Rom mounted in the set.
How to identify the model is described below.
– POWER BOARD (Component Side) –
IC803
MSM534001E-49TSKFDR3 (TYPE C: ENGLISH, FRENCH)
MSM534001E-50TSKFDR3 (TYPE A: ENGLISH, SPANISH)
MSM534001E-51TSKFDR3 (TYPE B: ENGLISH, GERMAN)
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 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  HANDLING  THE  OPTICAL  PICK-UP
BLOCK  OR  BASE  UNIT
CAUTION
Use of controls or adjustments or performance of procedures
other than those specified herein may result in hazardous ra-
diation exposure.
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 flexible 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 avove when
checking it for adustment. It is feared that you will lose your sight.
NOTES ON HANDLING THE OPTICAL PICK-UP BLOCK
(KMS-241B/J1NP)
 The laser diode in the optical pick-up block may suffer electro-
static break-down easily. When handling it, perform soldering
bridge to the laser-tap on the flexible board. Also perform m easures
against electrostatic break-down sufficiently before the operation.
The flexible board is easily damaged and should be handled with
care.
laser-tap
OPTICAL PICK-UP FLEXIBLE BOARD
4
SECTION  2
GENERAL
This section is extracted from
instruction manual.
Page of 84
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Download Sony MDX-C8970R Service Manual (Repair Manual)

Here you can view online or download Sony MDX-C8970R Service Manual in pdf. This Service Manual can help you recover, restore, fix, disassemble and repair Sony MDX-C8970R Car Audio. Information contained in Sony MDX-C8970R service manual (repair manual) typically includes:

  • Disassembly, troubleshooting, programming, maintenance, remote, adjustment, installation and setup instructions.
  • Schematics, wiring and block diagrams.
  • Printed wiring boards (PWB) and printed circuit boards (PCB).
  • Parts list (bill of materials).