BBK BX900U, Service Manual

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7
CD PLAYER CHECKING PROCEDURES
A. WAVE E/F BALANCE ADJUSTMENT
1) Test Point : VC, TS10.
2) Test Disc : Sony Test CD Type 3.
3) Test
Equipment :
Scope : DC 0.2 V 0.5 ms.
4) Test Mode : Play Sony CD, Type 3, Track 1, Press FF.
(Fast Forward), Until A=B (as Figure Bellow).
SCOPE : DC POSITION
A
B
Figure A
B. FOCUS-BIAS ADJUSTMENT
1) Test Point : VC RFO.
2) Test Disc : Sony Test CD, Type 3.
3) Test Equipment :
Scope : DC 0.5 V 0.5 P s.
4) Test Mode : Play Sony CD, Type 3, Track 1,
Make Wave Form (Eye Pattern) Max. And Clear.
SCOPE : AC POSITION
Figure B
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