Panasonic SJ-MJ75 Service Manual page 31

6.1.1. Necessary instruments to adjust
1. Test disc (Playback-only disc)
2. Commercially available recordable disc (fully recorded with music) (magneto-
optical disc)
3. Remote controller
6.1.2. Preparations for adjustment
1. Check the laser emission.
A. Make the player to the mechanism unit only. (Refer to Fig.3 or the item of
"Replacement for the intermediate cabinet" in "Operation Checks and Main
Component Replacement Procedures).
B. Set the battery.
C. While pressing the battery cover to connect the battery power,
continuously press the OPEN/CLOSE switch. (As shown in Fig.4)
D. The optical pickup moves up and down and emits a laser. (Caution: Do not
look directly at the laser light source.) If the laser does not emit a beam,
follow the item of "operation check" in "Troubleshooting Guide " and
check for a malfunction.
E. Make the optical pickup move to the center of the movement range (refer to
Fig.4) (Note : Do not touch the optical pick up lens.).
F. Remove the battery.
Fig.4
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