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CD PLAYER CHECKING PROCEDURES
A. WAVE E/F BALANCE ADJUSTMENT
1)
Test Point
2)
Test Disc
3)
Test Equipment
Scope
4)
Test Mode
(Fast Forward), Adjust VR401 Until A=B (as Figure Bellow).
B. FOCUS-BIAS ADJUSTMENT
1)
Test Point
2)
Test Disc
3)
Test Equipment
Scope
:
VC, TS10.
:
Sony Test CD Type 3.
:
:
DC 0.2 V 0.5 ms.
:
Play Sony CD, Type 3, Track 1, Press FF.
SCOPE : DC POSITION
Figure A
:
VC RFO.
:
Sony Test CD, Type 3.
:
DC 0.5 V 0.5 μs.
:
SCOPE : AC POSITION
A
B
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