8 Focus Bias Adjustment
Use the special disc (continuous recorded disc)
No. Key
Display/Function
1
MULTI JOG
Select [FBIAS ADJUST]
2
Load the disc.
3
PLAY
[a=xx yyyy/zz] point a
(xx = focus bias yyyy = C1error)
4
UP
Adjust "yyyy" to 220*
5
PLAY
[b=xx yyyy/zz] point b
6
DOWN
Adjust "yyyy" to 220*
7
PLAY
[xx yyyy/zzc=] point c
Check "yyyy" within 50
8
PLAY
Display shows [aa bb cc(xx)] focus bias adjust
(aa = point a, bb=b, cc=c )
Notes:
1. The relation between the C1 error and focus bias value is shown in the figure below. Points "a" and "b" in the
figure are detected by the above adjustment. Focal position "C" is automatically obtained from points "a" and “b”
by calculation.
2. The C1 error rate fluctuates. Therefore, perform the adjustment according to the observed mean value.
9 Error Rate Check
1. CD Error Rate
No. Key
Display/Function
1
MULTI JOG
[CPLAY MODE]
2
Load the test disc (TGYS-1)
3
PLAY
Display shows [CPLAY MID]
Access and
[c=xxxx a=yy] xxxx=C1 error (lower 20) yy = AIDP error
4 ST OP
[CPLAY
MODE]
5 EJ ECT Unload
disc.
2. MO Error Rate
No. Key
Display/Function
1
MULTI JOG
[CPLAY MODE]
2
Load the recordable disc
3
PLAY
Display shows [CPLAY MID]
Access and
[c=xxxx a=yy] xxxx=C1 error (lower 50) yy = AIDP error (00)
4 ST OP
[CPLAY
MODE]
5 EJ ECT Unload
disc.
8
Содержание MD110
Страница 11: ...9 10 3 WIRING DIAGRAM ...
Страница 12: ...4 BLOCK DIAGRAM 11 12 ...
Страница 13: ...13 14 5 SCHEMATIC DIAGRAM ...
Страница 14: ...15 16 6 PARTS LOCATION Pattern Side MAIN BOARD Q20 Q10 IC12 IC7 IC9 IC11 IC10 IC8 Q12 Q8 Q9 REC BOARD ...
Страница 15: ...17 18 Q21 Q14 Q15 Q1 Q2 IC4 Q4L Q4R Q16 Q18 Q19 Q5 Q7 IC13 Q3L Q3R MAIN BOARD IC1 IC3 IC2 REC BOARD ...
Страница 16: ...19 20 FRONT BOARD Q302 Q303 Q306 Q300 Q301 Q307 ...
Страница 18: ...22 IC2 KIC9459N PIN CONNECTION PIN DESCRIPTION ...