17
D-107
CONFIRMATION METHOD OF ADJUSTMENT
In the
µ
com of this system, there is a built-in function “adjustment confirmation mode” to
check various servo control easily with CD operation buttons.
Also, focus offset, tracking offset, tracking balance, focus gain, and tracking gain are all
adjusted automatically as the digital servo control is built in the system.
1. Activating Adjustment Confirmation Mode
(1) Load the test disc TCD-784 or Mozart (CO-74176) at the function CD.
(2) After pressing the
button (PLAY/PAUSE) and
button simultaneously, press
button (STOP) within 3 sec.
(The adjustment confirmation mode is activated and the track number of the display turns to
.)
Note:
Normal control is disabled with the operation buttons when the adjustment confirmation mode is activated.
To cancel this mode, simply unplug the AC cord.
2. Function of Adjustment Confirmation Mode
Button
Function
Description
(OPEN/CLOSE)
Load / unload of disc.
Open/close while disc is no rotation.
Press other button after finishing open/close mode.
Activates focus servo, and
starts disc rotation.
Track number display turns to
.
Activates all servo, and starts
auto-adjustment.
When
displayed, press
after 3 sec.
Track number display turns to
.
After auto-adjustment, it stops.
Displays each
auto-adjustment result.
After finishing auto-adjustment, every pressing of
the
button displays each adjusted value of
auto-adjustment as follows. Check that the value
of
portion falls within the range shown Table 1
on page18.
(The value of
portion is hexadecimal)
Fdoffset
h
(Focus offset adjusted value)
Tdoffset
h
(Tracking offset adjusted value)
Tbal
h
(Tracking balance adjusted value)
Fbal
0 0 h
(Focus balance adjusted value)
Fogain
h
(Focus gain adjusted value)
Trgain
h
(Tracking gain adjusted value)
Focus balance adjusted value is always fixed to 00h.
Do not operate with other buttons other than
described above during this mode.
Step
(0)
(PLAY/PAUSE)
(1)
(2)
(3)
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