Table of Contents
Advertisement
QQ
3 7 63 1515 0
3. Confirmation of sled movement
By pressing the F. SKIP or B. SKIP button continuously when all LCD light up, it is possible to transfer the pick-up to either the outer circumfer-
ence or the inner circumference (the LCD is to remain all light up).
4. Confirmation of the RF level
Test point: RF and VC (Vref)
Test disc: TCD-782
Confirm that the RF waveform appears as shown below.
5. Confirmation of tracking balance
Test point: TE and VC (Vref)
Test disc: TCD-782
Press the DSL button while the test disc is playing and confirm that the traverse waveform is as is shown below.
TE
L 13942296513
6. Confirmation of each servo
It is possible to confirm the adjustment value of each servo by repeatedly pressing the MODE button while the test disc is playing. The switch
over sequence is as stated below.
Confirmation mode OFF -> Focus bias (FB) -> Tracking balance (TB) -> Tracking gain (TG) -> Tracking error offset (TEO) -> Focus gain (FG)
-> Focus error offset (FEO) -> Confirmation mode OFF
Example: Tracking error offset (TEO) Adjustment value: 03
Tracking error offset (TEO) display
*Adjustment values are displayed in HEX.
www
.
http://www.xiaoyu163.com
At 0.8Vp-p or greater
VC
Adjustment value
x
ao
u163
y
i
http://www.xiaoyu163.com
2 9
8
VOLT/DIV: 200mV
TIME/DIV: 0.5us
Q Q
3
6 7
1 3
1 5
VOLT/DIV: 200mV
TIME/DIV: 2ms
co
.
– 28 –
9 4
2 8
0 5
8
2 9
9 4
2 8
m
9 9
9 9
Advertisement
Table of Contents
