Drv Circuit Board Diagram - Hitachi DZ-MV380A(K) Service Manual

3-12 DRV Circuit Board Diagram

11
12
(4.6)
(4.6) 73
(4.6)
82
41
(4.6)
(3.2)
43 42
(4.6) (4.6)
47 46
(4.6) (4.6)
Note: Voltage values are in reading status.
Example: 24 (4.7): Terminal no. (voltage value)
Supplement: Since the DVD drive is intermittently operated, set to the reading status in which
laser light is emitted from the pickup.
8
(3.2)
1 35
70 36
5
(3.3)
57
(3.3)
16
(4.7)
50
(4.8)
17
(4.7)
32
(4.7)
34 44
(4.7) (4.7)
11 23
(4.7) (4.6)
DRV -SIDE A-
[PATTERN No.JA2084-4]
30
(3.3)
8
(3.0)
14
(2.5)
64
(4.7)
49
(4.5)
4
(3.3)
Information of MAN, DRV, SID and HDM Circuit Boards
During servicing, replace the entire MAN circuit board, and the entire
disc drive unit, including the DRV, SID and HDM circuit boards.
Because of this servicing method, this service manual includes only the
simplified circuit board diagrams, and does not include any schematic
circuit diagrams.
The simplified circuit board diagrams show the major voltage values:
Refer to them during troubleshooting.
- 20 -
5
(3.3)
8
(3.3)
8
(3.3)
8
(3.3)
4
8
(4.8)
(4.8)
8
8
(3.3)
16 14
(4.8)
(4.8) (4.8)
8
(4.8)
8
5 (3.3)
(4.8)
5
(4.8)
4
(4.8)
17
1
(4.8)
(4.8)
5
(4.8)
DRV -SIDE B-
[PATTERN No.JA2084-4]
3 1
(4.8) (4.8)
32
(4.8)