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MXD-D400
5-15. ERROR RATE CHECK
5-15-1. CD Error Rate Check
Checking Procedure:
1. Load the check disc (MD) (TDYS-1).
2. Turn the
l AMS L
MODE" (C36).
[YES]
3. Press the
button twice and display "CPLAY 2MID".
4. The display changes to "C =
5. Check that the C error rate is below 20.
[MENU/NO]
6. Press the
button to stop playback, then press the
[EJECT]
button and take out the check disc.
5-15-2. MO Error Rate Check
Checking Procedure:
1. Load the continuously-recorded disc. (Refer to "5-6. USING
THE CONTINUOUSLY RECORDED DISC")
2. Turn the
l AMS L
MODE" (C36).
[YES]
3. Press the
button to display "CPLAY 2MID".
4. The display changes to "C =
5. If the C error rate is below 20, check that ADER is 00.
[MENU/NO]
6. Press the
button to stop playback, then press the
[EJECT]
button and take out the test disc.
5-16. FOCUS BIAS CHECK
Change the focus bias and check the focus tolerance amount.
Checking Procedure:
1. Load the continuously-recorded disc. (Refer to "5-6. USING
THE CONTINUOUSLY RECORDED DISC")
2. Turn the
l AMS L
MODE" (C36).
[YES]
3. Press the
button twice to display "CPLAY 2MID".
[MENU/NO]
4. Press the
button when "C =
displayed.
5. Turn the
l AMS L
CHECK" (C16).
[YES]
6. Press the
button to display "
The first four digits indicate the C error rate, the two digits
after "/ " indicate ADER, and the 2 digits after "c =" indicate
the focus bias value.
[YES]
7. Press the
button and display "
Check that the C error is about 220 and ADER is below 2.
[YES]
8. Press the
button and display "
Check that the C error is about 220 and ADER is below 2
[MENU/NO]
9. Press the
button, then press the
and take out the disc.
Note:
If the C error and ADER are above other than the specified value
at points a (step 8. in the above) or b (step 7. in the above), the
focus bias adjustment may not have been carried out properly.
Adjust perform the beginning again.
42
(MD) knob to display "CPLAY 2
AD =
".
(MD) knob to display "CPLAY 2
AD =
".
(MD) knob to display "CPLAY 2
AD =
(MD) knob to display "FBIAS
/
c =
".
/
b =
".
/
a =
".
[EJECT]
button
5-17. AUTO GAIN CONTROL OUTPUT LEVEL
ADJUSTMENT
Be sure to perform this adjustment when the optical pick-up is
replaced.
If the adjustment results becomes "Adjust NG!", the optical pick-
up may be faulty or the servo system circuits may be abnormal.
5-17-1. CD Auto Gain Control Output Level Adjustment
Adjusting Procedure:
1. Load the check disc (MD) (TDYS-1).
2. Turn the
l AMS L
(C11).
[YES]
3. When the
formed automatically.
"Complete!!" will then be displayed momentarily when the
value is recorded in the non-volatile memory, after which the
display changes to "AG Set (CD)" (C11).
[EJECT]
4. Press the
5-17-2. MO Auto Gain Control Output Level Adjustment
Adjusting Procedure:
1. Load the test disc (MDW-74/GA-1).
2. Turn the
l AMS L
(C10).
[YES]
3. When the
formed automatically.
"Complete!!" will then be displayed momentarily when the
value is recorded in the non-volatile memory, after which the
display changes to "AG Set (MO)" (C10).
[EJECT]
4. Press the
" is
(MD) knob to display "AG Set (CD)"
button is pressed, the adjustment will be per-
button and take out the check disc.
(MD) knob to display "AG Set (MO)"
button is pressed, the adjustment will be per-
button and take out the test disc.
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