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6 Laser Power Check and Adjustment
Laser power setting in playback and recording modes.
Preparation
1. Remove the MD mechanism from the unit
2. Remove the case and bracket.
3. Reconnect the flat cable of MD mechanism to the unit
1. Laser Power Adjustment
No. Key
Display/Function
1 MULTI
JOG
[LDPWR
ADJUST]
Load recordable disc
2
Load the disc and laser on [a0.9mW>$xx] read power
(xx = power value)
3
EJECT
Unload the disc and laser on
4 FF/FB
(REC)
Move the pickup to check the laser power with laser power meter sensor
(Press the REC key if the pickup is In the proper position)
5
MULTI JOG
Adjust “xx” so that the power meter shows 0.9mW.
6
PLAY
[a7.0mW>$xx] writing power
7
UPIDOWN
Adjust “xx” so that the power meter shows 7.0mW.
This adjustment should be carried out In 15secs.
8
PLAY
Laser power off
Display shows [LDPWR ADJUST] after [LDPWR<$xx] to save the data In
E2PROM
Start from No.2 if readjust.
2. Laser Power Check
No. Key Display/Function
1 UP [LDPWR
CHECK]
2 PL AY
[c0.9mW>$xx]
(xx=0.85 to 0.95mW)
3 PL AY
[c7.0mW>$xx]
Laser power meter: 7.0 + - 1.0mW*
7 Traverse Adjustment
V: 0.5V/div H: 10ms/div
INPUT: DC mode
6
Summary of Contents for MD110
Page 11: ...9 10 3 WIRING DIAGRAM ...
Page 12: ...4 BLOCK DIAGRAM 11 12 ...
Page 13: ...13 14 5 SCHEMATIC DIAGRAM ...
Page 16: ...19 20 FRONT BOARD Q302 Q303 Q306 Q300 Q301 Q307 ...
Page 18: ...22 IC2 KIC9459N PIN CONNECTION PIN DESCRIPTION ...