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9
CHECKS PRIOR TO PARTS REPLACEMENT AND ADJUSTMENTS
Before performing repairs, perform the following checks to determine the faulty locations up to a certain extent.
Details of the procedures are described in “5 Electrical Adjustments”.
Details of the procedures are described in “5 Electrical Adjustments”.
• 5-6-2. Laser power check (see page 33)
• 5-6-3. Iop Compare (see page 33)
• 5-6-4. Auto Check (see page 34)
• 5-6-3. Iop Compare (see page 33)
• 5-6-4. Auto Check (see page 34)
Note:
The criteria for determination above is intended merely to determine if satisfactory or not, and does not serve as the specified value for
adjustments.
When performing adjustments, use the specified values for adjustments.
adjustments.
When performing adjustments, use the specified values for adjustments.
FORCED RESET
The system microprocessor can be reset in the following procedure.
Use these procedure when the unit cannot be operated normally due to the overrunning of the microprocessor, etc.
Procedure :
Use these procedure when the unit cannot be operated normally due to the overrunning of the microprocessor, etc.
Procedure :
1. Disconnect the short-circuit pin of CN201.
2. Disconnect the AC outlet.
3. After some time, connect AC power plug to the AC outlet again.
4. Connect the short-circuit pin of CN201.
2. Disconnect the AC outlet.
3. After some time, connect AC power plug to the AC outlet again.
4. Connect the short-circuit pin of CN201.
[MAIN BOARD] (SIDE A)
CN201
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