1-2
MVC-CD500
1-3. NOTES ON HANDLING THE LASER DIODE
[LASER UNIT AND BASE UNIT (DDX-G3000)]
The laser diode may suffer electrostatic breakdown because of the
potential difference generated by the charged electrostatic load, etc.
on clothing and the human body.
During repair, pay attention to electrostatic breakdown and also use
the procedure in the printed matter which is included in the repair
parts.
The flexible board is easily damaged and should be handled with
care.
1.
Precaution for Checking Emission of Laser
Diode [Base Unit (DDX-G3000)]
Laser light of the equipment is focused by the object lens in the
optical pick-up so that the light focuses on the reflection surface of
the disc. Therefore, be sure to keep your eyes more then 30 cm
apart from the object lens when you check the emission of laser
diode.
Optical pick-up
(Laser diode)
2.
Soldering Conditions of Laser Unit
Temperature of
Less than 350 °C
the Soldering Iron
Time to Solder
3 seconds
Interval to Solder
Next terminal is soldered after waiting
for 1 second
Note:
Adjustment is needed when laser unit is replaced.
Refer to “19. AF Laser Output Adjustment” and “20. AF Laser Axis
Check” of SERVICE MANUAL, ADJ (987621651.pdf).
Laser unit
(LED901)