Read Sony CFD-E75 Service Manual online
3
CFD-E75
TABLE OF CONTENTS
1.
SERVICING NOTES
..............................................
3
2.
GENERAL
..................................................................
5
3.
DISASSEMBLY
3-1. Disassembly Flow ...........................................................
8
3-2. Cabinet Lower Assy ........................................................
8
3-3. AC INLET Board, Power Board .....................................
9
3-4. TUNER Board, MAIN Board .........................................
9
3-5. Cover Plate Assy ............................................................. 10
3-6. CD Mechanism Deck (KSM-213CDP) .......................... 10
3-7. Optical Pick-up (KSS-213C) .......................................... 11
3-8. Cabinet Front Assy .......................................................... 11
3-9. Tape Mechanism Deck (MF-V5-117) ............................ 12
3-10. CD Lid ............................................................................. 12
3-11. Lid Cassette Assy, LCD Board ....................................... 13
3-12. Head (HRP301), Motor Assy (M301), Belt ................... 13
3-13. Connector Setting ............................................................ 14
3-6. CD Mechanism Deck (KSM-213CDP) .......................... 10
3-7. Optical Pick-up (KSS-213C) .......................................... 11
3-8. Cabinet Front Assy .......................................................... 11
3-9. Tape Mechanism Deck (MF-V5-117) ............................ 12
3-10. CD Lid ............................................................................. 12
3-11. Lid Cassette Assy, LCD Board ....................................... 13
3-12. Head (HRP301), Motor Assy (M301), Belt ................... 13
3-13. Connector Setting ............................................................ 14
4.
MECHANICAL ADJUSTMENTS
...................... 15
5.
ELECTRICAL ADJUSTMENTS
Tape Deck Section ......................................................... 15
Tuner Section ................................................................. 16
CD Section ..................................................................... 18
Tuner Section ................................................................. 16
CD Section ..................................................................... 18
6.
DIAGRAMS
6-1. Block Diagram – CD Section – .................................... 19
6-2. Block Diagram – TUNER Section – ............................ 20
6-3. Block Diagram – MAIN Section – ............................... 21
6-4. Block Diagram – POWER SUPPLY Section – ............ 22
6-5. Printed Wiring Board – CD Section – .......................... 24
6-6. Schematic Diagram – CD Section – ............................. 25
6-7. Printed Wiring Board – TUNER Section – .................. 26
6-8. Schematic Diagram – TUNER Section – ..................... 27
6-9. Printed Wiring Board – TAPE DECK Section – .......... 28
6-10. Schematic Diagram – TAPE DECK Section – ............. 28
6-11. Printed Wiring Boards – MAIN/LCD Boards – ........... 29
6-12. Schematic Diagram – MAIN Board (1/2) – ................. 30
6-13. Schematic Diagram – MAIN (2/2)/LCD Boards – ...... 31
6-14. Printed Wiring Boards – PANEL Section – ................. 32
6-15. Schematic Diagram – PANEL Section – ...................... 33
6-16. Printed Wiring Boards
6-2. Block Diagram – TUNER Section – ............................ 20
6-3. Block Diagram – MAIN Section – ............................... 21
6-4. Block Diagram – POWER SUPPLY Section – ............ 22
6-5. Printed Wiring Board – CD Section – .......................... 24
6-6. Schematic Diagram – CD Section – ............................. 25
6-7. Printed Wiring Board – TUNER Section – .................. 26
6-8. Schematic Diagram – TUNER Section – ..................... 27
6-9. Printed Wiring Board – TAPE DECK Section – .......... 28
6-10. Schematic Diagram – TAPE DECK Section – ............. 28
6-11. Printed Wiring Boards – MAIN/LCD Boards – ........... 29
6-12. Schematic Diagram – MAIN Board (1/2) – ................. 30
6-13. Schematic Diagram – MAIN (2/2)/LCD Boards – ...... 31
6-14. Printed Wiring Boards – PANEL Section – ................. 32
6-15. Schematic Diagram – PANEL Section – ...................... 33
6-16. Printed Wiring Boards
– POWER SUPPLY Section – ....................................... 34
6-17. Schematic Diagram
– POWER SUPPLY Section – ....................................... 35
6-18. IC Pin Function Description .......................................... 38
7.
EXPLODED VIEWS
7-1. Cabinet Section ............................................................... 40
7-2. Cabinet Upper Section .................................................... 41
7-3. Cabinet Front Section ..................................................... 42
7-4. Cabinet Lower Section .................................................... 43
7-5. Optical Pick-up Section (KSM-213CDP) ...................... 44
7-6. Tape Mechanism Deck Section-1 (MF-V5-117) ............ 45
7-7. Tape Mechanism Deck Section-2 (MF-V5-117) ............ 46
7-2. Cabinet Upper Section .................................................... 41
7-3. Cabinet Front Section ..................................................... 42
7-4. Cabinet Lower Section .................................................... 43
7-5. Optical Pick-up Section (KSM-213CDP) ...................... 44
7-6. Tape Mechanism Deck Section-1 (MF-V5-117) ............ 45
7-7. Tape Mechanism Deck Section-2 (MF-V5-117) ............ 46
8.
ELECTRICAL PARTS LIST
.............................. 47
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.
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
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.
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
CHECK
During normal operation of the equipment, emission of the laser
diode is prohibited unless the upper lid is closed while turning ON
the S901. (push switch type)
The following checking method for the laser diode is operable.
diode is prohibited unless the upper lid is closed while turning ON
the S901. (push switch type)
The following checking method for the laser diode is operable.
• Method
Emission of the laser diode is visually checked.
1. Open the upper lid.
2. Push the S901 as shown in Fig.1.
2. Push the S901 as shown in Fig.1.
Note:
Do not push the detection lever strongly, or it may be bent or dam-
aged.
3. Press the
[ ]
(CD) button.
4. Check the object lens for confirming normal emission of the
laser diode. If not emitting, there is a trouble in the automatic
power control circuit or the optical pick-up.
In this operation, the object lens will move up and down 2
times along with inward motion for the focus search.
power control circuit or the optical pick-up.
In this operation, the object lens will move up and down 2
times along with inward motion for the focus search.
NOTES ON HANDLING THE OPTICAL PICK-UP
BLOCK OR BASE UNIT
BLOCK OR BASE UNIT
u
S901
Fig.1 Method to push the S901
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