3-13 SID Circuit Board Diagram3-14 HDM Circuit Board Diagram
Information of MAN, DRV, SID and
HDM Circuit Boards1(4.8)
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 HDM -SIDE A-
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.
14
23(4.8)
(4.7)
7
22
(4.7)
(4.7)
9Note: Voltage values are in reading status.
(3.3)
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(3.3)
8(3.3)
HDM -SIDE B-
11(3.3)
25 21 20 17
(4.9)(4.9)(4.9) (4.9)
27 26 2517165(4.9)6(4.9)10(4.9)
9(4.9)
(3.1)
11(3.1)
932 1910
3(4.8) 4(4.8)(3.3)3(3.1)8(4.9)
41(4.8)40(4.8)
SID -SIDE A-SID -SIDE B-
[PATTERN No.JA2084-4][PATTERN No.JA2084-4]
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ACEC
HITACHI
