Panasonic DVD-RV22PP Service Manual

and Spindle Motor AssemblyBefore replacing the optical pickup unit and spindle motor assembly, check the total usinghours for each of them. The checking method is as follows:Cautions to be taken when replacing the optical pickupThe optical pickup may break down due to the static electricity of human body. Take properprotection measures against static electricity before repairing the parts around the opticalpickup. (See the page describing the PREVENTION OF STATIC ELECTRICITYDISCHARGE.)1. Do not touch the areas around the laser diode and actuator.2. Do not judge the laser diode with a tester. (The tester will bedamaged easily.)3. It is recommended to use a destaticized soldering iron for short-circuiting or removing the laser diode. (Recommended solderingiron) HAKKO ESD Product4. Solder the land of the flexible cable in the optical pickup.Note:- When using a soldering iron which is not destaticized, short-circuitthe terminal face of the flexible case with a clip. After that, short-circuit the land.- After the repairing work is completed, remove the solder accordingto the correct procedure shown in this Technical Guide.17