Panasonic DVD-PV55, Service Manual

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9.6. Disassembling and
reassembling the traverse
Caution:
Precautions to avoid static electricity are needed when
servicing the traverse and peripherals.
Only service once these precautions have been taken.
9.6.1. Removing the traverse unit
Proceed only with exterior parts removed.
1. Disengage the lockable connector, and then unplug the
flexible cable.
2. Unfasten the traverse unit.
3. Solder the laser short land on the flexible cable of the
optical pick-up unit on the bottom of the traverse unit. (In 2
places)
4. Disengage the lock on the lockable connector, and unplug
the flexible cable on the optical pick-up unit.
9.6.2. Attaching the traverse unit
The traverse unit has already been adjusted. Do not touch the
adjusting screw.
1. Attach the flexible cable on the optical pick-up unit and
firmly lock it.
2. Remove the solder from the laser short land on the flexible
cable.
Note:
• • • •
Incomplete removal of the solder will prevent the
laser diode from emitting light properly.
3. Attach the flexible cable and the dumper, and fasten to the
prescribed pins on the main unit.
4. There is no need to adjust the traverse unit when replacing
it.
9.6.3. Removing the optical pick-up unit
Caution:
Precautions to follow when replacing the optical pick-
up
1. Precautions to avoid static electricity are needed
when servicing the optical pick-up and peripherals.
2. Use a clean, dust-free surface to work on.
3. Limit replacing the optical pick-up to the designated
parts. Disassembling parts other than those
designated may make it impossible to adjust.
4. Be careful not to misplace any small parts when
disassembling the traverse, such as springs and
screws.
The traverse is a high-precision optical instrument.
Be careful not to touch the lens or the area around
it and to avoid severe shocks to it.
Proceed only with the traverse unit removed. When removing
the traverse unit, be sure to solder the laser short land on the
flexible cable on the optical pick-up. (In 2 places.)
1. Remove the screws from the main rail.
2. Remove the main rail.
3. Remove the main rail spring.
4. Slide the main rail in the direction shown and remove the
optical pick-up unit.
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DVD-LV75 / DVD-PV55