Panasonic DVD-S31EG, Service Manual

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Cautions to be taken when replacing the optical pickup
The optical pickup may break down due to the static
electricity of human body. Take proper protection measures
against static electricity before repairing the parts around
the
optical pickup. (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 be damaged easily.)
3. It is recommended to use a destaticized soldering iron
for short-circuiting or removing the laser diode.
(Recommended soldering iron) HAKKO ESD Product
4. Solder the land of the flexible cable in the optical pickup.
Note:
• • • •
When using a soldering iron which is not
destaticized, short-circuit the terminal face of the
flexible case with a clip. After that, short-circuit
the land.
• • • •
After the repairing work is completed, remove the
solder according to the correct procedure shown
in this Technical Guide.
7.2. Cautions to be used before replacing the Optical Pickup Unit and
Spindle Motor assembly
Before replacing the optical pickup unit and spindle motor assembly, check the total using hours for each of them. The checking
method is as follows:
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DVD-S35E / DVD-S35EB / DVD-S35EG / DVD-S31EG