DOWNLOAD Sony CMT-F3MD / HCD-F3MD Service Manual ↓ Size: 10.5 MB | Pages: 96 in PDF or view online for FREE

Model
CMT-F3MD HCD-F3MD
Pages
96
Size
10.5 MB
Type
PDF
Document
Service Manual
Brand
Device
Audio
File
cmt-f3md-hcd-f3md.pdf
Date

Sony CMT-F3MD / HCD-F3MD Service Manual ▷ View online

4
TABLE  OF  CONTENTS
SELF-DIAGNOSIS FUNCTION
.....................................
2
1.
SERVICING  NOTES
...............................................
5
2.
GENERAL
................................................................... 16
3.
DISASSEMBLY
......................................................... 18
4.
TEST MODE
............................................................... 26
5.
ELECTRICAL  ADJUSTMENTS
MD Section ..................................................................... 30
CD Section ...................................................................... 38
6.
DIAGRAMS
6-1. Block Diagram  – CD SERVO Section – ....................... 39
6-2. Block Diagram  – MD SERVO Section (1/2) – ............. 40
6-3. Block Diagram  – MD SERVO Section (2/2) – ............. 41
6-4. Block Diagram  – MAIN Section – ................................ 42
6-5. Note for Printed Wiring Boards and
Schematic Diagrams ....................................................... 43
6-6. Printed Wiring Board  – BD (CD) Board – .................... 44
6-7. Schematic Diagram  – BD (CD) Board – ....................... 45
6-8. Schematic Diagram  – BD (MD) Board (1/2) – ............. 46
6-9. Schematic Diagram  – BD (MD) Board (2/2) – ............. 47
6-10. Printed Wiring Board  – BD (MD) Board – ................... 48
6-11. Schematic Diagram  – BD SW (MD) Board – ............... 49
6-12. Printed Wiring Board  – BD SW (MD) Board – ............ 49
6-13. Schematic Diagram  – LOADING (CD) Board – .......... 49
6-14. Printed Wiring Board  – LOADING (CD) Board – ....... 49
6-15. Printed Wiring Board  – MD DIGITAL Board – ........... 50
6-16. Schematic Diagram  – MD DIGITAL Board – .............. 51
6-17. Printed Wiring Board  – MAIN Board – ........................ 52
6-18. Schematic Diagram  – MAIN Board (1/3) – .................. 53
6-19. Schematic Diagram  – MAIN Board (2/3) – .................. 54
6-20. Schematic Diagram  – MAIN Board (3/3) – .................. 55
6-21. Printed Wiring Boards  – AMP/SP Boards – .................. 56
6-22. Schematic Diagram  – AMP/SP Boards – ...................... 57
6-23. Printed Wiring Board  – PANEL Board – ...................... 58
6-24. Schematic Diagram  – PANEL Board  – ........................ 59
6-25. Printed Wiring Board  – POWER Board – ..................... 60
6-26. Schematic Diagram  – POWER Board – ........................ 61
6-27. IC Pin Function Description ........................................... 70
7.
EXPLODED  VIEWS
................................................ 80
8.
ELECTRICAL  PARTS  LIST
............................... 86
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.
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  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.
This appliance is classified as a CLASS 1 LASER product.
The CLASS 1 LASER PRODUCT MARKING is located on
the rear exterior.
Laser component in this product is capable of emitting radiation
exceeding the limit for Class 1.
The following caution label is located inside the unit.
5
SECTION  1
SERVICING  NOTES
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.
For CD
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 emis-
sion, observe from more than 30 cm away from the objective lens.
LASER  DIODE  AND  FOCUS  SEARCH  OPERATION
CHECK
Carry out the “S curve check” in “CD section adjustment” and
check that the S curve waveforms is output three times.
For MD
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.
CLEANING  OBJECTIVE  LENS  OF  OPTICAL  PICK-UP
• In cleaning the objective lens of optical pick-up, be sure the
following below.
1. In cleaning the lens, do not apply an excessive force.
As the optical pick-up is vulnerable, application of excessive
force could damage the lens holder.
2. In cleaning, do not use a cleaner other than exclusive cleaning
liquid (KK-91 or isopropyl alcohol).
3. Wipe the objective lens spirally from center toward outside.
(See Figure A)
NOTES  ON  HANDLING  THE  OPTICAL  PICK-UP
BLOCK  OR  BASE  UNIT
MODEL IDENTIFICATION
— Back panel —
(Figure A)
4. Eject the disk, if loaded.
5. Disconnect the power cord from the socket to shut off the power
supply.
6. When cleaning the objective lens of optical pick-up in CD,
refer to “HOLDER (BU) ASS’Y” on page 24 for removing
HOLDER (BU) ASS’Y.
PART No.
Model
Part No.
Hong Kong model
4-229-548-1[]
Korean model
4-232-128-0[]
Taiwan model
4-232-129-0[]
6
DRAWING  OUT  THE  TRAY  WHEN  THE  POWER  IS  OFF
CLEANING  THE  OPTICAL  PICK-UP (CD  PLAYER)
tray (CDM)
Move the cam block in the direction 
of arrow 
A
 with a finger.
A
CD mechanism deck
floating screw
(PTPWH M2.6)  
optical pick-up block
Clean the lens block 
with a cotton bud.
7
SERVICE  POSITION  OF  THE  MD  MECHANISM
DECK
SERVICE  POSITION  OF  THE  CD  MECHANISM
DECK
MD mechanism deck
CD  mechanism deck
SERVICE  POSITION  OF  THE  POWER  BOARD
MAIN board
POWER board
CN993
CN802
Extension cable (4P)
(J-2501-042-A)
Extension cable (3P)
(J-2501-045-A)
AMP board
Page of 96
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Sony CMT-F3MD / HCD-F3MD Service Manual ▷ Download

  • DOWNLOAD Sony CMT-F3MD / HCD-F3MD Service Manual ↓ Size: 10.5 MB | Pages: 96 in PDF or view online for FREE
  • Here you can View online or download the Service Manual for the Sony CMT-F3MD / HCD-F3MD in PDF for free, which will help you to disassemble, recover, fix and repair Sony CMT-F3MD / HCD-F3MD Audio. Information contained in Sony CMT-F3MD / HCD-F3MD 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.