Sony HCD-MDX10 Service Manual - Page 27

Electrical Adjustments, Md Parts Replacement And Adjustment

Page 27 highlights

SECTION 7 ELECTRICAL ADJUSTMENTS MD SECTION 7-1. PARTS REPLACEMENT AND ADJUSTMENT • Check and adjust the MDM and MBU as follows. The procedure changes according to the part replaced • Temperature compensation offset check • Laser power check • Traverse check • Focus bias check • C PLAY check • Self-recording/playback check OK • Abbreviation OP : Optical pick-up OWH: Overwrite head NG Parts Replacement and Repair Check the sleding and spindle mechanisms. Other causes can be suspected. Has the OWH been replaced? YES NO Has OP, IC171, IC101, or IC121 been replaced? YES Initial setting of the adjustment value Has OP or IC171 been replaced? NO NO YES IOP information recording (IOP value labeled on OP) Has IC171 or D101 been replaced? YES NO Temperature compensation offset adjustment • Laser power adjustment • Traverse adjustment • Focus bias adjustment • Error rate adjustment • Focus bias check • Auto gain adjustment - 27 -

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MD SECTION
7-1. PARTS REPLACEMENT AND ADJUSTMENT
Check and adjust the MDM and MBU as follows.
The procedure changes according to the part replaced
SECTION
7
ELECTRICAL ADJUSTMENTS
• Abbreviation
OP
: Optical pick-up
OWH: Overwrite head
• Temperature compensation offset check
• Laser power check
• Traverse check
• Focus bias check
• C PLAY check
• Self-recording/playback check
Parts Replacement and Repair
NG
Has the OWH been replaced?
NO
OK
NO
NO
NO
Has OP, IC171, IC101, or
IC121 been replaced?
YES
YES
Initial setting of the adjustment value
Has OP or IC171 been replaced?
YES
IOP information recording
(IOP value labeled on OP)
Has IC171 or D101
been replaced?
YES
Temperature compensation offset adjustment
• Laser power adjustment
• Traverse adjustment
• Focus bias adjustment
• Error rate adjustment
• Focus bias check
• Auto gain adjustment
Check the sleding and spindle
mechanisms.
Other causes can be suspected.