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8. Press the
. "R"
the oscilloscope becomes the specified value.
(When the
. "R"
"EFB=
" changes and the waveform changes) In this
adjustment, waveform varies at intervals of approx. 2%. Adjust
the waveform so that the specified value is satisfied as much as
possible.
(Write power traverse adjustment)
Traverse Waveform
VC
Specification A = B
9. Press the
ENTER/YES "R"
results in the non-volatile memory. ("EFB =
displayed for a moment)
10. "EFB =
MO-P" will be displayed.
The optical pick-up moves to the pit area automatically and
servo is imposed.
11. Press the
. "R"
the oscilloscope moves closer to the specified value.
In this adjustment, waveform varies at intervals of approx. 2%.
Adjust the waveform so that the specified value is satisfied as
much as possible.
Traverse Waveform
TE
L 13942296513
VC
Specification A = B
12. Press the
ENTER/YES "R"
results in the non-volatile memory. ("EFB =
displayed for a moment)
Next "EF MO ADJUST" (C07) is displayed. The disc stops
rotating automatically.
13. Press the Z (MD) button and take out the disc.
14. Load the check disc (TDYS-1).
15. Press the
. "R"
ADJUST" (C08).
16. Press the
ENTER/YES "R"
Servo is imposed automatically.
17. Press the
. "R"
the oscilloscope moves closer to the specified value.
In this adjustment, waveform varies at intervals of approx. 2%.
Adjust the waveform so that the specified value is satisfied as
much as possible.
Traverse Waveform
www
VC
.
Specification A = B
http://www.xiaoyu163.com
or
button so that the waveform of
> "R"
or
button is pressed, the
> "R"
A
B
button, and save the adjustment
SAVE" will be
or
> "R"
button until the waveform of
A
B
button, and save the adjustment
SAVE" will be
or
> "R"
button to display "EF CD
button to display "EFB =
or
> "R"
button so that the waveform of
A
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B
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2 9
8
18. Press the
ENTER/YES "R"
for a moment and save the adjustment results in the non-volatile
of
memory.
Next "EF CD ADJUST" (C08) will be displayed.
19. Press the Z (MD) button and take out the check disc.
Adjustment Location: BD board (see page 39)
13.FOCUS BIAS ADJUSTMENT
Procedure:
1. Load the continuously-recorded disc. (Refer to "5. USING
THE CONTINUOUSLY RECORDED DISC" (See page 32))
2. Press the
. "R"
MODE" (C34).
3. Press the
ENTER/YES "R"
4. Press the
MENU/NO "R"
displayed.
5. Press the
. "R"
ADJUST" (C09).
6. Press the
ENTER/YES "R"
The first four digits indicate the C1 error rate, the two digits
after "/ " indicate ADER, and the 2 digits after "a =" indicate
the focus bias value.
7. Press the
> "R"
the C1 error rate becomes about 200 (refer to Note 2).
8. Press the
ENTER/YES "R"
9. Press the
. "R"
the C1 error rate becomes about 200.
10. Press the
ENTER/YES "R"
11. Check that the C1 error rate is below 20 and ADER is 00. Then
Q Q
3
6 7
1 3
1 5
press the
ENTER/YES "R"
12. If the "( )" in "
button.
YES "R"
If below 20, press the
adjustment from step 2.
13. Press thet Z (MD) button and take out the disc.
Note 1: The relation between the C1 error and focus bias is as shown in
the following figure. Find points A and B in the following figure
using the above adjustment. The focal point position C is auto-
matically calculated from points A and B.
Note 2: As the C1 error rate changes, perform the adjustment using the
average vale.
C1 error
about
200
CD".
B
co
.
HCD-J300
9 4
2 8
button, display "EFB =
or
> "R"
button to display "CPLAY1
button to display "CPLAY 1MID".
button when "C =
or
> "R"
button to display "FBIAS
button to display "
button and find the focus bias value at which
button to display "
button and find the focus bias value at which
button to display "
0 5
8
2 9
9 4
2 8
button.
-
-
( )" is above 20, press the
button and repeat the
MENU/NO "R"
Focus bias value
C
A
m
9 9
SAVE"
AD =
)" is
/
a =
".
/
b =
".
/
c =
".
9 9
ENTER/
37
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