Sony MZ-N10, Руководство по обслуживанию

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23
MZ-N10
Laser Power Check and Adjustment
Connection :
Checking and Adjustment Method :
1. Select the manual mode of test mode (see page 12), and set the
laser power adjusting mode (item number 010).
2. Press the
.
key continuously until the optical pick-up
moves to the most inward track.
3. Open the cover and set the laser power meter on the objective
lens of the optical pick-up.
4. Press the
>
key, and set the laser MO read adjustment mode
(item number 011).
5. Check that the laser power meter reading is 0.572
±
0.10 mW.
6. If the reading value is not satisfied, adjust with the
[VOL +]
or
[VOL --]
key so that the laser power meter reading becomes
the specification value. Press the
X
key or key on the
remote commander to write the adjusted value.
7. Press the > key, and set the laser CD read adjustment mode
(item number 012).
8. Check that the laser power meter reading is 0.763
±
0.13 mW.
9. If the reading value is not satisfied, adjust with the
[VOL +]
or
[VOL --]
key so that the laser power meter reading becomes
the specification value. Press the
X
key or key on the
remote commander to write the adjusted value.
10. Press the
>
key, and set the laser MO (
×
2 speed) write ad-
justment mode (item number 013).
11. Check that the laser power meter reading is 7.34
±
0.88 mW.
12. If the reading value is not satisfied, adjust with the
[VOL +]
or
[VOL --]
key so that the laser power meter reading becomes
the specification value. Press the
X
key or key on the
remote commander to write the adjusted value.
13. Press the
>
key, and set the laser MO (x4 speed) write
adjustment mode (item number 014).
laser
power meter
Optical pick-up
objective lens
Remote commander LCD display
Laser
010
Remote commander LCD display
LrefPw
@
**
011
Remote commander LCD display
HrefPw
@
**
012
Remote commander LCD display
WrPwLo
@
** 013
Remote commander LCD display
WrPwHi
@
**
014
14. Check that the laser power meter reading is 8.81
±
1.05mW.
15. If the reading value is not satisfied, adjust with the
[VOL +]
or
[VOL --]
key so that the laser power meter reading becomes
the specification value. Press the X key or key on the
remote commander to write the adjusted value.
16. Press the
x
key to quit the manual mode, and activate the test
mode (display check mode).