DOWNLOAD Sony DVP-CX985V Service Manual ↓ Size: 10.78 MB | Pages: 127 in PDF or view online for FREE

Model
DVP-CX985V
Pages
127
Size
10.78 MB
Type
PDF
Document
Service Manual
Brand
Device
DVD
File
dvp-cx985v.pdf
Date

Sony DVP-CX985V Service Manual ▷ View online

5
DVP-CX985V
SELF DIAGNOSIS FUNCTION
....................................
2
1.
SERVICING  NOTES
...............................................
6
2.
GENERAL
................................................................... 10
3.
DISASSEMBLY
3-1. Disassembly Flow ........................................................... 11
3-2. Case ................................................................................. 12
3-3. MB Board ........................................................................ 12
3-4. AV Board ......................................................................... 13
3-5. Bracket (L)/(R) ................................................................ 13
3-6. Front Panel Section ......................................................... 14
3-7. Cover (PT)/(CDM) .......................................................... 14
3-8. DVBU26 Assy ................................................................. 15
3-9. Power Block .................................................................... 15
3-10. Table (400) Assy ............................................................. 16
3-11. Door Block, Base (Door) Assy ....................................... 16
3-12. DC Motor (Door) (M603) ............................................... 17
3-13. Holder (Table Sensor 400) .............................................. 17
3-14. D. SENS OUT Board, D. SENS IN Board ..................... 18
3-15. Pop-up (400) Assy ........................................................... 18
3-16. Door SW Board ............................................................... 19
3-17. Lock SW Board, Loading SW Board ............................. 20
3-18. CD/DVD Mechanism Deck Block
(CDM62-DVBU26) ........................................................ 21
3-19. Motor (400) Assy (Loading) (M602)/(Table) (M601),
Loading Motor Board ..................................................... 21
3-20. Optical Pick-up (KHM-290AAA) .................................. 22
4.
TEST  MODE
.............................................................. 23
5.
MECHANICAL  ADJUSTMENTS
....................... 45
6.
ELECTRICAL  ADJUSTMENTS
......................... 46
7.
DIAGRAMS
7-1. Block Diagram  – RF Section – ...................................... 50
7-2. Block Diagram  – SERVO/CHANGER Section – ......... 51
7-3. Block Diagram  – AUDIO Section – .............................. 52
7-4. Block Diagram  – VIDEO Section – .............................. 53
7-5. Block Diagram
– PANEL/POWER SUPPLY Section – .......................... 54
7-6. Note for Printed Wiring Boards and
Schematic Diagrams ....................................................... 55
7-7. Printed Wiring Board
– MB Board (Component Side) – ................................... 56
7-8. Printed Wiring Board
– MB Board (Conductor Side) – ..................................... 57
7-9. Schematic Diagram  – MB Board (1/14) – .................... 58
7-10. Schematic Diagram  – MB Board (2/14) – .................... 59
7-11. Schematic Diagram  – MB Board (3/14) – .................... 60
7-12. Schematic Diagram  – MB Board (4/14) – .................... 61
7-13. Schematic Diagram  – MB Board (5/14) – .................... 62
7-14. Schematic Diagram  – MB Board (6/14) – .................... 63
7-15. Schematic Diagram  – MB Board (7/14) – .................... 64
7-16. Schematic Diagram  – MB Board (8/14) – .................... 65
7-17. Schematic Diagram  – MB Board (9/14) – .................... 66
7-18. Schematic Diagram  – MB Board (10/14) – .................. 67
7-19. Schematic Diagram  – MB Board (11/14) – .................. 68
7-20. Schematic Diagram  – MB Board (12/14) – .................. 69
7-21. Schematic Diagram  – MB Board (13/14) – .................. 70
7-22. Schematic Diagram  – MB Board (14/14) – .................. 71
7-23. Printed Wiring Board  – DRIVER Board – .................... 72
TABLE  OF  CONTENTS
7-24. Schematic Diagram  – DRIVER Board – ....................... 73
7-25. Printed Wiring Boards
– MOTOR/SWITCH Section – ....................................... 74
7-26. Schematic Diagram  – MOTOR/SWITCH Section – .... 75
7-27. Printed Wiring Boards  – SENSOR Section – ................ 76
7-28. Schematic Diagram  – SENSOR Section – .................... 77
7-29. Printed Wiring Board
– AV Board (Component Side) – .................................... 78
7-30. Printed Wiring Board
– AV Board (Conductor Side) – ...................................... 79
7-31. Printed Wiring Board
– RS-232C Board – ......................................................... 80
7-32. Schematic Diagram  – AV (1/3)/RS-232C Boards – ...... 81
7-33. Schematic Diagram  – AV Board (2/3) – ........................ 82
7-34. Schematic Diagram  – AV Board (3/3) – ........................ 83
7-35. Printed Wiring Board
– PANEL-L Board (Component Side) – ......................... 84
7-36. Printed Wiring Board
– PANEL-L Board (Conductor Side) – .......................... 85
7-37. Schematic Diagram  – PANEL-L Board (1/2) – ............ 86
7-38. Schematic Diagram  – PANEL-L Board (2/2) – ............ 87
7-39. Printed Wiring Boards  – PANEL Section – .................. 88
7-40. Schematic Diagram  – PANEL Section – ....................... 89
7-41. Printed Wiring Board  – POWER Board – ..................... 90
7-42. Schematic Diagram  – POWER Board – ........................ 91
7-43. IC Pin Function Description .......................................... 100
8.
EXPLODED  VIEWS
8-1. Overall Section ............................................................... 124
8-2. Front Panel Section ........................................................ 125
8-3. Power Block Section ...................................................... 126
8-4. Table Section .................................................................. 127
8-5. Chassis Section .............................................................. 128
8-6. Base (Door) Section ....................................................... 129
8-7. CD/DVD Mechanism Deck Section-1
(CDM62-DVBU26) ....................................................... 130
8-8. CD/DVD Mechanism Deck Section-2
(CDM62-DVBU26) ....................................................... 131
8-9. CD/DVD Mechanism Deck Section-3
(CDM62-DVBU26) ....................................................... 132
8-10. CD/DVD Mechanism Deck Section-4
(CDM62-DVBU26) ....................................................... 133
8-11. Optical Pick-up Section (DVBU26) .............................. 134
9.
ELECTRICAL  PARTS  LIST
.............................. 135
6
DVP-CX985V
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.
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.
NOTE  OF  REPLACING  THE  MB  BOARD
When replacing the MB board, since the adjustment value is not
set up correctly, “Drive Auto Adjustment” can’t be performed.
In this case, initialize Memory in the following procedures.
Procedure:
1. Set the test mode. (See page 23)
2. Press the [2] key of the remote commander, and set the “DRIVE
MANUAL OPERATION”. (See page 29)
3. Press the [6] key of the remote commander, and set the “2-6,
Memory Check”. (See page 32)
4. Press the [CLEAR] key of the remote commander, and initial-
ize Memory.
SETTING  OR  RELEASING  THE  FRONT  COVER  LOCK
Procedure:
1. Press the
I
/1
button to turn the power on.
2. Press two buttons of
x
and [OPEN/CLOSE] on the main unit
for 5 seconds or more.
Note:
The setting method and the releasing method are the same operation.
NOTES  ON  HANDLING  THE  OPTICAL  PICK-UP
BLOCK  OR  BASE  UNIT
– POWER Board (Conductor Side) –
CN201
13
1
CHECK  OF  POWER  BOARD  WITH  THE  POWER  ON
It is possible to analyze the defect with only POWER board power
ON.
Procedure:
1. Set to power OFF state.
2. Remove the connector from CN201 on the POWER board.
3. Short between CN201 pin 1 (P-CONT) and CN201 pin qa
(EVER+3.3V) on the POWER board.
4. Turn the power ON.
5. Confirm that the voltage value of CN201 each pin on the
POWER board satisfy following value .
CN201 Pin
Voltage Value
pin 2 (EVER–11V)
–11V
pin 3 (SW–11V)
–11V
pin 6, 7 (SW+11V)
+11V
pin 8 (SW+3.3V)
+3.3V
pin qa (EVER+3.3V)
+3.3V
pin qs (SW+5V)
+5V
pin qd (EVER+11V)
+11V
Ver. 1.2
7
DVP-CX985V
AV board
AV board
– Front side –
MB board
cables
(MB board to 
driver board, 
sensor board)
cables
(MB board to 
driver board, 
sensor board)
MB board
AV board
power block
locking wire 
saddle
MB board
It takes care that the cables doesn’t hang down.
cable
(AV board to panel-L board)
cables
(MB board to 
driver board, 
sensor board)
cable
(MB board to 
led board)
ALIGNMENT  OF  GEAR (CAM)  PHASE  WITH  DOOR
ASS’Y
CLEANING  OF  OPTICAL  PICK-UP
door assy
 gear (cam)
Align a slit of door assy with a marking on 
the bottom land of gear tooth when the gear 
is rotated fully in arrow direction, as shown.
optical pick-up
pulley assy
Remove the pulley assy, and 
clean the lens of optical pick-up 
through this hole.
NOTE  FOR  INSTALLATION
8
DVP-CX985V
driver board
cables
cables
When installing the cables, it is made to make it crawl in a chassis.
AV board
AV board
cables
It is made to contact and for there not to be a power block and cables.
power block
MB board
power block
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