The optical pickup can be damaged by static electricity from you body.Be sure to take static electricity countermeasures
when working around the optical pickup.(Refer to the related page in this Manual about the countermeasures.
1.Do not touch laser diode,actuator and their peripheries.
2.Do not use tester to check laser diode.(Laser diode can be damaged easily.)
3.The use of soldering iron with anti-static feature is recommended when providing short-circuit to laser diode or when
-When using the soldering iron without anti-static feature,short-circuit the flexible cable terminal with a clip before
removing it.
4.Solder the land on flexible cable of optical pickup unit.
6.7.1. Precautions in optical pickup replacement
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Summary of Contents for BBK921D
Page 1: ...SERVICE MANUAL BBK921D...
Page 4: ...3 Precaution of L aster Diode 3...
Page 5: ...4...
Page 6: ...5...
Page 16: ...8 MPEG BOARD CHECK WAVEFORM 2 IC5L0380R PIN 2 WAVEFORM DIAGRAM 1 27MHz WAVEFORM DIAGRAM 15...
Page 34: ...33 FRONT SCHEMATIC DIAGRAM...
Page 36: ...35 POWER BOARD SCHEMATIC DIAGRAM...
Page 38: ...37 OK SCHEMATIC DIAGRAM...
Page 44: ...43 MIAN SCHEMATIC DIAGRAM...
Page 45: ...44 MIAN SCHEMATIC DIAGRAM...
