MD-101A
0J12
A-BEX
TMD-381
0F001
1
8
7
6
5
4
3
2
ADJUSTMENT PROCEDURES-1
The necessity for adjustment
unnecessary
necessary
The exchanged parts
Pickup unit
Parts on MD
mount,
and Motors
Mechanical
parts
Adjustment of Temperature Compensation Offset
Adjustment of laser power
Check of laser power
Adjustment of Traverse (EF balance)
Check of error rate in high reflectance disk
Check of error rate in low reflectance disk
Adjustment of focus Bias
Check of focus bias
Notes in adjustment
1. Laser of pickup
2. Perform adjustment using test mode.
3. Perform adjustment as the indicated turn.
4. After adjustment should cancel test mode.
Equipment required for adjustment
Digital volt meter
Oscilloscope
Optical sensor
Laser power meter
Frequency range is 40MHz or more.
The calibration of the probe is performed.
In case adjust, don't look at the laser of the pickup unit.
You have fear of loss of eyesight.
Name
Name
Name
1. Measuring instrument
2. Test disk
Description
Description
Details
Part No.
Manufactured
LEADER
LEADER
LPM-8010
LP-8010-02
Standard disk for recording/play back
FFC socket
PC board
Flexible flat cable
Extended JIG
1mm pitch, 7 cores
Part No. NCJIG-0J12
Part No. 25052307
Adjustment item
Manufactured
MO disk
High reflectance disk
3. JIG
When an error rate is worse than
the standard value, perform this
work.
REMARKS