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6.2.2 Test Mode 2 (MD Mechanism Assy Adjustment, Check)
1 Temperature Check (Please perform this check soon after the power has been switched on.)
Note: When IC101 (RF-AMP) or IC104 (mechanical controller) has been exchanged or when a correction changing VD+3 has been made, be sure to correctly perform all steps up to step 7.
Step No. 1 2 3 When 4 Operation Keys and Operation Method Power ON while holding the ENTER key and the PLAY key depressed. Press the NAME CLIP key. When is 80 or more at this time, the adjustment is OK (step 4 and following can be omitted). is 80 (not passed) Measure the ambient temperature T (Â°C) andcheck hat the measuring value ( ) is within the standard in regard to the microcomputer set value ( ). Note: When the indication of the measuring value ( ) is not stable, and the ambient temperature T (Â°C) is 25 Â°C or less, set to the lower value. When the ambient temperature is over 25 Â°C, set to the higher value. TEMP 80 FL Display EJECT TEMP Test mode The microcomputer starts measuring. End 80 is the default value (unadjusted). : Measuring value : Set value Status Remarks
TEMP Âµ-com Measuring value Room Temperature [ T (Â°C) ] 11.6 to 16.9 17.0 to 22.3 22.4 to 27.6 27.7 to 33.0 33.1 to 38.4 ( hex= â +1 to +3 0 to +2 â1 to +1 0 to â2 â1 to â3 ) 79 When the 7A microcomputer 7B value is 7C 7D Âµ-com Set value
Change with the TIME SKIP key (UP) and the A-B key (DOWN). Press the EDIT/NO key.
TEMP 7B 7B No Disc Writing to EEPROM is made and return is made automatically from test mode to normal mode.
2 Laser Power Check
Step No. 1 2 3 4 Operation Keys and Operation Method Power ON while holding the ENTER key and the PLAY key depressed. Press the NAME key. Measure the laser power with an optical power meter. At this time, check that the measuring value (PLAY power) meets the standard value of the table on the right. Note: When the standard value on the right is applied, the numerical value immediately after entry into test mode 2 shall be taken as the standard. FL Display EJECT ppw ppw ppw Test mode PLAY power output status Status Remarks Laser Wavelength: 780 nm
TEMP Âµ-com Measuring value
( hex = â ) +02 to +04 â01 to +01 â02 to â04
May be omitted.
Âµ-com Set value
Standard Value (mW) 0.69Â±0.12 0.67Â±0.1 0.63Â±0.1
Press the NAME key. At this time, check that the measuring value (REC power) meets the standard value of the table on the right.
REC power output status hex = â +02 to +04 â01 to +01 â02 to â04 Standard Value (mW) 6.18Â±0.93 5.79Â±0.87 5.47Â±0.82
Press the STOP key.
The LD goes out.