PIONEER MJL5 II
Manual de Servicio

MJ-L5, SP-L5

6.1.3 MD Mechanism Assy Adjustment and 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 Operation Keys and Operation Method Short circuit MECH TEST MODE during the power ON, or press the ESC key. (Service remote control unit)(Fig.1) Press the REC 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 (°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 (°C) is 25 °C or less, set to the lower value. When the ambient temperature is over 25 °C, set to the higher value. TEMP 80 FL Display EJECT Test mode Status Remarks

2 3 When 4

TEMP

The microcomputer starts measuring. End 80 is the default value (unadjusted).
TEMP

: Measuring value : Set value

µ-com Measuring value Room Temperature [ T (°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= � +1 to +3 0 to +2 �1 to +1 0 to �2 �1 to �3 )

µ-com Set value

79 When the 7A microcomputer 7B value is 7C 7D

�

+

5 6

Change with the F. SKIP key (UP) and the R.SKIP key (DOWN). Power OFF

TEMP 7B 7B EEPROMW Writing to EEPROM is made and return is made automatically from test mode to normal mode.

2 Laser Power Check
Step No. 1 Operation Keys and Operation Method Short circuit MECH TEST MODE during the power ON, or press the ESC key. (Service remote control unit)(Fig.1) Press the SET key (Remote control unit) 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 Test mode Status Remarks Laser Wavelength: 780 nm

2 3 4

ppw ppw ppw

PLAY power output status

µ-com Measuring value

TEMP

May be omitted.
µ-com Set value

(

hex = � +02 to +04 �01 to +01 �02 to �04

)

Standard Value (mW) 0.69±0.12 0.67±0.1 0.63±0.1

5 6

Press the SET or SEARCH key. At this time, check that the measuring value (REC power) meets the standard value of the table on the right.

rpw rpw

REC power output status hex = ( � ) +02 to +04 �01 to +01 �02 to �04 The LD goes out. Standard Value (mW) 6.18±0.93 5.79±0.87 5.47±0.82

7

Press the EJECT key.

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