Sony MZ-N10 Notes: installing & operating OpenMG Service Manual page 23

Laser Power Check and Adjustment
Connection :
Optical pick-up
objective lens
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).
Remote commander LCD display
010 Laser
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).
Remote commander LCD display
011 LrefPw
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 --]
key so that the laser power meter reading becomes
the specification value. Press the X key or
remote commander to write the adjusted value.
7. Press the > key, and set the laser CD read adjustment mode
(item number 012).
Remote commander LCD display
012
HrefPw
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 --]
key so that the laser power meter reading becomes
the specification value. Press the X key or
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).
Remote commander LCD display
013
WrPwLo
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 --]
key so that the laser power meter reading becomes
the specification value. Press the X key or
remote commander to write the adjusted value.
13. Press the > key, and set the laser MO (x4 speed) write
adjustment mode (item number 014).
Remote commander LCD display
014
WrPwHi
laser
power meter
@
**
[VOL +]
or
key on the
@
**
[VOL +]
or
key on the
@
**
[VOL +]
or
key on the
@
**
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 --]
key so that the laser power meter reading becomes
the specification value. Press the X key or
remote commander to write the adjusted value.
16. Press the key to quit the manual mode, and activate the test
x
mode (display check mode).
MZ-N10
[VOL +]
or
key on the
23