參數(shù)資料
型號： KB9224
廠商： SAMSUNG SEMICONDUCTOR CO. LTD.
英文描述： VIDEO-CD 2ND GENERATION
中文描述： 視頻-環(huán)糊精第二代
文件頁數(shù)： 40/55頁
文件大小： 450K
代理商： KB9224
VIDEO-CD 2ND GENERATION
KB9224
40
When Adjusting the Tracking Gain
In Gain Adjustment, the Switch Mode is changed one Step at a time from $83F --> $820 by 12-bit DATA
transmission. A separate Latch Pulse is not needed after Adjust completion.
Trcnt and TGL outputs H Duty Check standard is above 0.1 ms.
Adjustment is carried out by choosing the most appropriate out of the 4 adjustment modes, including the ones
listed above.
The Tracking Balance Window select level can be selected by the D3 bit out of the 12-bit DATA.
0: +250 mv (TGL) ~ +200 mv (TGH)
1: +150 mv (TGL) ~ +300 mv (TGH)
When Tracking Gain Adjustment is complete, Tracking & Sled Servo Loop On and TOC Read is initiated.
Gain Adjust proceeds from Status 1 -->2 -->3 when the MICOM Command carries out Down Command from $83F
--> $820, in order. Adjustment is complete when in Status 2.
Gain Adjustment Method 1
MICOM monitors Trcnts TGL output, and if the outputs H Duty (0.1 ms) is detected, the adjustment is complete. At
this time, the Window Comparator Level is +150 mv ~ +300 mv.
Start :$83F
*Settings*
FOCUS On
Spindle On
Tracking Off
Sled Off
$08
CLV-S
$20
$830
End
Is TRCNT high
enough
Gain window level
select
Yes
No
G0 to G4
Switch control.
32 step decrease
from $83F to $820
-150 ~ +300 mV :$84 1XXX
+250 ~ +200 mV :$84 0XXX
If Gain adjusting after Balance adjustment,
separate environment settings are not needed.
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