- 14 -
Automatic alignment
Tracking balance
Focus balance
Focus gain
Tracking gain
RF gain
DVD / CD
CD
DVD
Internal
circumference
optimization
One-layer or
two-layer
Two-layer
completed
One-layer
Two-layer
completed
Layer jump
CD : TOC READ
DVD : CSS processing
Pickup moves outward.
DVD / CD
External
circumference
optimization
STOP
Two-layer
DVD
CD
PLAYBACK
Measures error rate
Error judgement
Aligns tracking balance.
E
rror judgement
Error judgement
EQB
EQF
OK
NG
OK
NG
OK
NG
Optimization
One-layer or
two-layer
Two-layer
completed
Layer jump
NG
Time out
NG
OK
OK
(DVD external circumference EQ optimisation alignment)
DVD external circumference EQ optimization alignment
Problem/symptom
Check
Waveform
Schematic diagram Reference data
Check for propriety of RF EQ alignment.
3, (35)(38)
C
1
Two-layer DVD disk unplayable warp, small 3T, affected by double refraction?
defect, eccentricity, surface shaking?
2
"
Check RF waveform.
Compare with good unit.
(2)(3)(4)
C
3
"
Jumps correctly to 2nd layer?
(49)(50)
F
4
Error 22 occurs.
Check TE waveform.
(36)~(38)
CHECK FLOW AND TROUBLE SHOOTING
An extract from "GENERAL FLOW"
Содержание FISHER DVD-1500 AU
Страница 42: ... 55 MPEG P W BOARD CHECK WAVEFORM 1 2 3 4 5 6 Indicate each signaling in schematic diagram of MPEG P 58 ...
Страница 44: ... 57 MPEG P W BOARD CHECK WAVEFORM 8 9 10 11 12 ...
Страница 65: ... 82 WIRING DIAGRAM DVD A SIDE ...
Страница 66: ... 83 WIRING DIAGRAM DVD B SIDE ...
Страница 67: ... 86 WIRING DIAGRAM MPEG A SIDE for AU ...
Страница 68: ... 87 WIRING DIAGRAM MPEG B SIDE for AU ...
Страница 69: ... 90 WIRING DIAGRAM MPEG A SIDE for US ...
Страница 70: ... 91 WIRING DIAGRAM MPEG B SIDE for US ...
Страница 72: ... 97 AMP for AU WIRING DIAGRAM AMP AMP for US ...
Страница 74: ...SANYO Technosound Co Ltd Osaka Japan Jun 00 2550 BB Printed in Japan ...