DOWNLOAD Sony CMT-CPX1 / HCD-CPX1 (serv.man2) Service Manual ↓ Size: 4.21 MB | Pages: 65 in PDF or view online for FREE

3

...............................................

4

Location of Controls .......................................................

8

Setting the Clock .............................................................

9

3-1. Disassembly Flow ........................................................... 10
3-2. Case ................................................................................. 11
3-3. Front Panel Section ......................................................... 11
3-4. TC Board, Mechanical Deck .......................................... 12
3-5. MAIN Board ................................................................... 12
3-6. Tuner Unit ....................................................................... 13
3-7. CD Mechanism Deck (CDM55A-K6BD44S) ................ 13
3-8. Loading Board ................................................................. 14
3-9. Cam (CDM55) ................................................................ 14
3-10. Base Unit (BU-K6BD44S) ............................................. 15
3-11. Motor Gear Assy (Sled) (M102), BD Board .................. 15
3-12. Optical Pick-up (KSS-213D) .......................................... 16

.............................................................. 17

Deck Section ................................................................... 19
CD Section ...................................................................... 20

6-1. Block Diagram  – CD Servo Section – ........................... 21
6-2. Block Diagram  – TUNER/TAPE DECK Section – ...... 22
6-3. Block Diagram  – MAIN Section – ................................ 23
6-4. Block Diagram

– DISPLAY/POWER SUPPLY Section – ...................... 24

6-5. Note for Printed Wiring Boards and

Schematic Diagrams ....................................................... 25

6-6. Printed Wiring Board  – BD Board – ............................. 26
6-7. Schematic Diagram  – BD Board – ................................ 27
6-8. Printed Wiring Board  – TC Board – .............................. 28
6-9. Schematic Diagram  – TC Board – ................................. 29
6-10. Printed Wiring Boards

 – LOADING/MAIN Boards – ....................................... 31

6-11. Schematic Diagram  – MAIN Board (1/2) – .................. 32
6-12. Schematic Diagram

– LOADING/MAIN (2/2) Boards – ............................... 33

6-13. Printed Wiring Board  – AMP Board – .......................... 34
6-14. Schematic Diagram  – AMP Board – ............................. 35
6-15. Printed Wiring Boards

– BACK LIGHT/LCD/SWITCH Boards – .................... 36

6-16. Schematic Diagram

 – BACK LIGHT/LCD/SWITCH Boards – ................... 37

6-17. Printed Wiring Boards

 – HP/SP OUT/POWER Boards – .................................. 38

6-18. Schematic Diagram

  – HP/SP OUT/POWER Boards – ................................. 39

6-19. IC Pin Function Description ........................................... 44

7-1. Case Section .................................................................... 47
7-2. Front Panel Section-1 ...................................................... 48
7-3. Front Panel Section-2 ...................................................... 49
7-4. Lid (TC) Section ............................................................. 50
7-5. Chassis Section-1 ............................................................ 51
7-6. Chassis Section-2 ............................................................ 52
7-7. Chassis Section-3 ............................................................ 53
7-8. CD Mechanism Deck Section

(CDM55A-K6BD44S) .................................................... 54

7-9. Base Unit (BU-K6BD44S) ............................................. 55

............................... 56

4

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.

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.

To prevent four screws of +BVTP 3 

× 8 TYPE 2 TT (B), that fix the mechanical deck to the front panel, from being magnetized, must not

use a magnetic screwdriver.

screw +BVTP 3 

×

 8 TYPE 2 TT (B)

screw +BVTP 3 

×

 8 TYPE 2 TT (B)

non-magnetic screwdriver

Model Name

Part No.

US and Canadian models

4-244-015-1

[]

Singapore model

4-244-015-2

[]

Australian model

4-244-015-3

[]

Korean model

4-244-015-4

[]

5

Set up the service position with putting an insulator under the mechanical deck as the figure shown below.

tape mechanical deck

insulator

Set up the service position for the CD mechanism deck with disassembling the entire set as the figure shown below.

AMP section

CD mechanism deck

main board

front panel

6

Lead the wire (flat type) (9 core) properly to prevent the wire from coming out from the right side of the guides on the sub panel or sagging
inside of the lid.

 Follow the assembly procedure in the numerical order given.

lid (TC)

guides

wire (flat type) (9 core)

sub panel

3

three screws
(BVTP2.6

 

×

 

8)

1

Lead the cable trough out 
the ditch of the HP board 
to prevent the cable from 
contacting with the CD 
mechanism deck.

2

HP board

ditch

cable

HP board