39
HCD-M10
14. ERROR RATE CHECK
14-1. CD Error Rate Check
Procedure:
1. Load the check disc (TDYS-1).
2. Press the
.
“R” or
>
“R” button and display “CPLAY1
MODE” (C34).
3. Press the ENTER/YES “R” button twice and display “CPLAY1
MID”.
4. The display changes to “C =
AD =_ _)”.
5. Check that the C error rate is below 20.
6. Press the MENU/NO “R” button to stop playback, then press
the
Z
MD button and take out the check disc.
14-2. MO Error Rate Check
Procedure:
1. Load the continuously-recorded disc. (Refer to “5. USING
THE CONTINUOUSLY RECORDED DISC” (See page 33))
2. Press the
.
“R” or
>
“R” button to display “CPLAY1
MODE” (C34).
3. Press the ENTER/YES “R” button to display “CPLAY1MID”.
4. The display changes to “C =
AD =
)”.
5. If the C error rate is below 20, check that ADER is 00.
6. Press the MENU/NO “R” button to stop playback, then press
the
Z
MD button and take out the disc.
15. FOCUS BIAS CHECK
Change the focus bias and check the focus tolerance amount.
Procedure:
1. Load the continuously-recorded disc. (Refer to “5. USING
THE CONTINUOUSLY RECORDED DISC” (See page 33))
2. Press the
.
“R” or
>
“R” button to display “CPLAY1
MODE” (C34).
3. Press the ENTER/YES “R” button twice to display “CPLAY1
MID”.
4. Press the MENU/NO “R” button when “C =
AD =
)”
is displayed.
5. Press the
.
“R” or
>
“R” button to display “FBIAS
CHECK” (C16).
6. Press the ENTER/YES “R” button to display “
/
c =
”.
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.
7. Press the ENTER/YES “R” button and display “
/
b =
”.
Check that the C error is below 220 and ADER is below 2.
8. Press the ENTER/YES “R” button and display “
/
a =
”.
Check that the C error is below 220 and ADER is below 2
9. Press the MENU/NO “R” button, then press the
Z
MD button
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.
16. 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.
16-1. CD Auto Gain Control Output Level Adjustment
Procedure:
1. Load the check disc (TDYS-1).
2. Press the
. m
“R” or
M >
“R” button to display “AG
Set (CD)” (C11).
3. When the ENTER/YES “R” button is pressed, the adjustment
will be performed 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).
4. Press the
Z
MD button and take out the check disc.
16-2. MO Auto Gain Control Output Level Adjustment
Procedure:
1. Load the test disc (MDW-74/GA-1).
2. Press the
.
“R” or
>
“R” button to display “AG Set
(MO)” (C10).
3. When the ENTER/YES “R” button is pressed, the adjustment
will be performed 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).
4. Press the
Z
MD button and take out the test disc.