Sony CMT-M90DVD / HCD-M90 Service Manual ▷ View online
4
HCD-M90
1.
SERVICING NOTES
...............................................
5
2.
GENERAL
...................................................................
9
3.
DISASSEMBLY
3-1. Disassembly Flow ........................................................... 10
3-2. Side Panel (L), Side Panel (R) ........................................ 11
3-3. Top Panel Section ............................................................ 11
3-4. Mechanical Deck (Tape) ................................................. 12
3-5. Front Panel Section ......................................................... 12
3-6. Back Panel Assy .............................................................. 13
3-7. MAIN Board ................................................................... 13
3-8. CONTROL Board, Noise Shield Case ........................... 14
3-9. DAC Board ...................................................................... 14
3-10. DVD Board ...................................................................... 15
3-11. Mechanism Deck (CDM55D-DVBU8B) ....................... 15
3-12. LOADING Board, Motor (LD) Assy (M901) ................ 16
3-13. RF-240 Board .................................................................. 16
3-14. Tray .................................................................................. 17
3-15. Optical Device ................................................................. 17
3-2. Side Panel (L), Side Panel (R) ........................................ 11
3-3. Top Panel Section ............................................................ 11
3-4. Mechanical Deck (Tape) ................................................. 12
3-5. Front Panel Section ......................................................... 12
3-6. Back Panel Assy .............................................................. 13
3-7. MAIN Board ................................................................... 13
3-8. CONTROL Board, Noise Shield Case ........................... 14
3-9. DAC Board ...................................................................... 14
3-10. DVD Board ...................................................................... 15
3-11. Mechanism Deck (CDM55D-DVBU8B) ....................... 15
3-12. LOADING Board, Motor (LD) Assy (M901) ................ 16
3-13. RF-240 Board .................................................................. 16
3-14. Tray .................................................................................. 17
3-15. Optical Device ................................................................. 17
4.
TEST MODE
.............................................................. 18
5.
ELECTRICAL ADJUSTMENTS
DVD Section ................................................................... 27
Deck Section ................................................................... 28
Deck Section ................................................................... 28
6.
DIAGRAMS
6-1. Block Diagram – DVD SERVO Section – .................... 29
6-2. Block Diagram – DVD MAIN Section (1/2) – ............. 30
6-3. Block Diagram – DVD MAIN Section (2/2) – ............. 31
6-4. Block Diagram – TUNER/TAPE DECK Section – ...... 32
6-5. Block Diagram – AUDIO Section – .............................. 33
6-6. Block Diagram
6-2. Block Diagram – DVD MAIN Section (1/2) – ............. 30
6-3. Block Diagram – DVD MAIN Section (2/2) – ............. 31
6-4. Block Diagram – TUNER/TAPE DECK Section – ...... 32
6-5. Block Diagram – AUDIO Section – .............................. 33
6-6. Block Diagram
– KEY CONTROL/POWER SUPPLY Section – ........... 34
6-7. Note for Printed Wiring Boards and
Schematic Diagrams ....................................................... 35
6-8. Printed Wiring Board – RF-240 Board (Suffix-11) – ... 36
6-9. Schematic Diagram – RF-240 Board (Suffix-11) – ...... 37
6-10. Printed Wiring Board – RF-240 Board (Suffix-22) – ... 38
6-11. Schematic Diagram – RF-240 Board (Suffix-22) – ...... 39
6-12. Printed Wiring Boards
6-9. Schematic Diagram – RF-240 Board (Suffix-11) – ...... 37
6-10. Printed Wiring Board – RF-240 Board (Suffix-22) – ... 38
6-11. Schematic Diagram – RF-240 Board (Suffix-22) – ...... 39
6-12. Printed Wiring Boards
– DVD (Side A) (Suffix-21)/LOADING Boards – ........ 40
6-13. Printed Wiring Board
– DVD Board (Side B) (Suffix-21) – .............................. 41
6-14. Schematic Diagram
– DVD (1/7) (Suffix-21)/LOADING Boards – .............. 42
6-15. Schematic Diagram
– DVD Board (2/7) (Suffix-21) – ................................... 43
6-16. Schematic Diagram
– DVD Board (3/7) (Suffix-21) – ................................... 44
6-17. Schematic Diagram
– DVD Board (4/7) (Suffix-21) – ................................... 45
6-18. Schematic Diagram
– DVD Board (5/7) (Suffix-21) – ................................... 46
6-19. Schematic Diagram
– DVD Board (6/7) (Suffix-21) – .................................. 47
6-20. Schematic Diagram
– DVD Board (7/7) (Suffix-21) – .................................. 48
6-21. Schematic Diagram
– DVD (1/7) (Suffix-22)/LOADING Boards – .............. 49
6-22. Schematic Diagram
– DVD Board (2/7) (Suffix-22) – ................................... 50
6-23. Schematic Diagram
– DVD Board (3/7) (Suffix-22) – ................................... 51
TABLE OF CONTENTS
6-24. Schematic Diagram
– DVD Board (4/7) (Suffix-22) – ................................... 52
6-25. Schematic Diagram
– DVD Board (5/7) (Suffix-22) – ................................... 53
6-26. Schematic Diagram
– DVD Board (6/7) (Suffix-22) – .................................. 54
6-27. Schematic Diagram
– DVD Board (7/7) (Suffix-22) – .................................. 55
6-28. Printed Wiring Boards
– DVD (Side A) (Suffix-22)/LOADING Boards – ........ 56
6-29. Printed Wiring Board
– DVD Board (Side B) (Suffix-22) – .............................. 57
6-30. Printed Wiring Board – DAC Board – ........................... 58
6-31. Schematic Diagram – DAC Board – .............................. 59
6-32. Printed Wiring Board – TC Board (Suffix-12) – ........... 60
6-33. Schematic Diagram – TC Board (Suffix-12) – ............. 61
6-34. Printed Wiring Board – TC Board (Suffix-32) – ........... 62
6-35. Schematic Diagram – TC Board (Suffix-32) – ............. 63
6-36. Schematic Diagram
6-31. Schematic Diagram – DAC Board – .............................. 59
6-32. Printed Wiring Board – TC Board (Suffix-12) – ........... 60
6-33. Schematic Diagram – TC Board (Suffix-12) – ............. 61
6-34. Printed Wiring Board – TC Board (Suffix-32) – ........... 62
6-35. Schematic Diagram – TC Board (Suffix-32) – ............. 63
6-36. Schematic Diagram
– MAIN Board (1/2) (Suffix-14) – ................................. 64
6-37. Schematic Diagram – MAIN (2/2) (Suffix-14)/
JACK (Suffix-11) Boards – ............................................. 65
6-38. Printed Wiring Boards
– MAIN (Suffix-14)/JACK (Suffix-11) Boards – .......... 66
6-39. Printed Wiring Boards
– MAIN (Suffix-16)/JACK (Suffix-12) Boards – .......... 67
6-40. Schematic Diagram
– MAIN (1/2) Board (Suffix-16) – ................................. 68
6-41. Schematic Diagram – MAIN (2/2) (Suffix-16)/
JACK (Suffix-12) Boards – ............................................. 69
6-42. Printed Wiring Boards
– CONTROL (Suffix-11)/VIDEO Boards – ................... 70
6-43. Schematic Diagram
– CONTROL (Suffix-11)/VIDEO Boards – ................... 71
6-44. Printed Wiring Boards
– CONTROL (Suffix-12)/VIDEO Boards – ................... 72
6-45. Schematic Diagram
– CONTROL (Suffix-12)/VIDEO Boards – ................... 73
6-46. Printed Wiring Board
– SWITCH Board (Suffix-11) – ..................................... 74
6-47. Schematic Diagram – SWITCH Board (Suffix-11) – ... 75
6-48. Printed Wiring Board
6-48. Printed Wiring Board
– SWITCH Board (Suffix-12) – ..................................... 76
6-49. Schematic Diagram – SWITCH Board (Suffix-12) – ... 77
6-50. Printed Wiring Board
6-50. Printed Wiring Board
– POWER Board (Suffix-11) – ....................................... 78
6-51. Schematic Diagram – POWER Board (Suffix-11) – ..... 79
6-52. Printed Wiring Board
6-52. Printed Wiring Board
– POWER Board (Suffix-12, -21) – ............................... 80
6-53. Schematic Diagram
– POWER Board (Suffix-12, -21) – .............................. 81
6-54. IC Pin Function Description ........................................... 88
7.
EXPLODED VIEWS
7-1. Panel (Side) Section ........................................................ 99
7-2. Front Panel Section ........................................................ 100
7-3. Top Panel Section ........................................................... 101
7-4. Chassis Section-1 ........................................................... 102
7-5. Chassis Section-2 ........................................................... 103
7-6. Chassis Section-3 ........................................................... 104
7-7. Mechanism Deck Section (CDM55D-DVBU8B) ......... 105
7-8. Base Unit Section (DVBU8B) ....................................... 106
7-2. Front Panel Section ........................................................ 100
7-3. Top Panel Section ........................................................... 101
7-4. Chassis Section-1 ........................................................... 102
7-5. Chassis Section-2 ........................................................... 103
7-6. Chassis Section-3 ........................................................... 104
7-7. Mechanism Deck Section (CDM55D-DVBU8B) ......... 105
7-8. Base Unit Section (DVBU8B) ....................................... 106
8.
ELECTRICAL PARTS LIST
.............................. 107
Ver 1.3
5
HCD-M90
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.
NOTES ON HANDLING THE OPTICAL PICK-UP
BLOCK OR BASE UNIT
BLOCK OR BASE UNIT
MODEL IDENTIFICATION
– Back Panel –
– Back Panel –
SERVICE POSITION
In checking the control board, prepare jig (extension cable J-2501-
219-B: 1.00 mm Pitch, 10 cores, Length 300 mm).
219-B: 1.00 mm Pitch, 10 cores, Length 300 mm).
Part No.
In checking the tape deck section, prepare jig (extension cable J-
2501-167-A: 1.25 mm Pitch, 17 cores, Length 300 mm).
2501-167-A: 1.25 mm Pitch, 17 cores, Length 300 mm).
Model Name
Part No.
AEP and UK models
4-239-822-0
[]
US and Canadian models
4-239-823-0
[]
Singapore model
4-239-824-0
[]
Australian model
4-240-899-0
[]
Chinese model
4-242-690-0
[]
Connect jig (extension cable J-2501-219-B)
to the control board (CN507) and DVD board (CN101).
to the control board (CN507) and DVD board (CN101).
control board (CN008)
DVD board (CN008)
TC board (CN301)
main board (CN301)
Connect jig (extension cable J-2501-167-A)
to the main board (CN301) and TC board (CN301).
to the main board (CN301) and TC board (CN301).
RELEASING THE DISC TRAY LOCK
The disc tray lock function for the antitheft of an demonstration
disc in the store is equipped.
disc in the store is equipped.
Releasing Procedure :
While pressing the
While pressing the
x
key, press the
[ DVD]
key. The message
“UNLOCKED” is displayed and the tray is unlocked.
Note:
When “LOCKED” is displayed, the tray lock is not released by
turning power on/off with the
turning power on/off with the
I
/
1
button.
Ver 1.3
Z
6
HCD-M90
Ver 1.3
NEW/FORMER DISCRIMINATION
In this set, RF-240, DVD, TC, MAIN, JACK, CONTROL,
SWITCH and POWER boards have been changed in the midway
of production.
SWITCH and POWER boards have been changed in the midway
of production.
Note:
Chinese model is produced only with the new boards.
– RF-240 BOARD (Side A) –
Former : 1-681-879-11
New
New
: 1-681-879-22
– DVD BOARD (Side B) –
Former : 1-684-516-21
New
New
: 1-684-516-22
– TC BOARD (Component Side) –
Former : 1-684-172-12
New
New
: 1-684-172-32
7
HCD-M90
Ver 1.3
– MAIN BOARD (Component Side) –
Former : 1-684-232-14
New
New
: 1-684-232-16
– JACK BOARD (Component Side) –
Former : 1-685-428-11
New
New
: 1-685-428-12
– CONTROL BOARD (Component Side) –
Former : 1-685-427-11
New
New
: 1-685-427-12
