23
ZS-M30
10. Press the NO/CANCEL button to display “LDPWR
CHECK” and stop the laser emission.
(The NO/CANCEL button is effective at all times to stop
the laser emission)
Note 1:
After step 9, each time the
YES/ENTER
button is pressed, the
display will be switched “LD 0.7 mW $
”, “LD 6.2 mW $
”,
and “LD WP
$
”. Nothing needs to be performed here.
(
= correction)
KMS260B
27X40
B0825
lOP=82.5 mA in this case
lOP (mA) = Digital voltmeter reading (mV)/3.3 (
Ω
)
(Optical pick-up label)
9. EF BALANCE ADJUSTMENT
Adjusting Procedure:
1. Connect an oscilloscope to TP504 (TE) and TP506 (VC) on
the MD board.
2. Load a disc (any available on the market). (Refer to Note 1)
3. Press the
M
button to move the optical pick-up outside the
pit.
4. Turn the JOG dial to display “EFBAL ADJUST”.
5. Press the YES/ENTER button to display “EFB = MO-R”.
(Laser power READ power/Focus servo ON/tracking servo OFF/
spindle (S) servo ON)
6. Turn the JOG dial so that the waveform of the oscilloscope be
comes the specified value.
(When the JOG dial is turned, the
of “EFB =
” changes
and the waveform changes ) In this adjust-ment, wave form var
ies at intervals of approx. 2 %. Adjust the waveform so that the
specified value is satisfied as much as possible.
(Read power traverse adjustment)
7. Press the YES/ENTER button and save the result of adjust-
ment to the non-volatile memory. (“EFB = SAVE” will be
displayed for a moment. Then “EFB = MO-W” will be dis-
played)
8. Turn the JOG dial so that the waveform of the oscilloscope be
comes the specified value.
(When the JOG dial is turned, the
of “EFB-
” changes and
the waveform changes) In this adjustment, waveform varies at
intervals of approx. 2%. Adjust the waveform so that the speci-
fied value is satisfied as much as possible.
(Write power traverse adjustment)
Note 1:
Data will be erased during MO reading if a recorded
disc is used in this adjustment.
Note 2:
If the traverse waveform is not clear, connect the
oscilloscope as shown in the following figure so that
it can be seen more clearly.
C521
C526
L509
5
17
C519
C520 C522
R519
R518
R533
R531
R535
IC502
R524
R532
R525
R540
R542
R5
4
C546
R538
C550
TP505
(RF)
TP506
(VC)
TP504
(TE)
36
25
24
20
37
40
30
35
MD BOARD
(SIDE B)
Ω
oscilloscope
(DC range)
Connection:
C521
C526
L509
5
17
C519
C520 C522
R519
R518
R533
R531
R535
IC502
R524
R532
R525
R540
R542
R5
4
C546
R538
C550
TP505
(RF)
TP506
(VC)
TP504
(TE)
36
25
24
20
37
40
30
35
[MD BOARD]
(SIDE B)
oscilloscope
(DC range)
A
B
VC
Specification : A = B
Traverse Waveform
A
B
VC
Specification : A = B
Traverse Waveform
Specified Value:
Laser power meter reading : 7.0
±
0.2 mW
Digital voltmeter reading : Value on the optical pick-up label
±
10%