Panasonic TC-15DT2 Service Manual ▷ View online
The optical pickup can be damaged by static electricity from
your body. Be sure to take static electricity countermeasures
when working around the optical pickup.
your body. Be sure to take static electricity countermeasures
when working around the optical pickup.
8 Assembling and Disassembling the Optical Pickup
(Mechanical Parts)
8.1.
Handling the Optical Pickup
The optical pickup can be damaged by static electricity from your body. Be sure to take static electricity countermeasures when
working around the optical pickup.
working around the optical pickup.
1. The optical pickup is an extremely high-precision mechanism. Do not subject it to strong impact.
2. To preserve the quality of the optical pickup replacement parts during transport and installation, the terminals of the laser diode
are short-circuited. After replacing the parts, use the proper procedure to return the laser diode to its original condition. (Refer
to section 11.10, Assembling the Optical Pickup.)
to section 11.10, Assembling the Optical Pickup.)
3. Testers cannot be used to check the laser diode of the optical pickup. The power supply inside the tester can easily damage
the laser diode.
4. Take care when handling the flexible cable because excessive force can cause it to break.
5. You cannot adjust the semifixed resistor for laser power adjustment. Do not turn it.
8.2.
Disassembly Procedure
Use the following procedure to replace major parts.
For the assembly procedure, follow the flow chart in reverse.
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TC-15DT2
8.3.
Disassembling the Clamp
Base Unit
Base Unit
1. Remove the 2 screws.
8.4.
Disassembling the Clamper
Weight, Clamper Yoke, Magnet
and Clamper
Weight, Clamper Yoke, Magnet
and Clamper
1. Release the tab, and pull out the clamper.
2. Release the 3 tabs on the clamper.
8.5.
Disassembling the Traverse
Unit
Unit
1. Remove the 3 screws.
Note
Be sure to take static electricitiy countermeasures befer
disconnecting the flexible cable.(Refer to section 4,
HANDLING PRECAUTIONSFOR TRAVERSE DECK.)
disconnecting the flexible cable.(Refer to section 4,
HANDLING PRECAUTIONSFOR TRAVERSE DECK.)
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TC-15DT2
2. Disconnect the 2 flexible cables.
8.6.
Disassembling the Stepping
Motor Unit
Motor Unit
1. Disconnect the flexible cable.
2. Remove the 2 screws.
Note
Take care when handling the flexible cable because it can
be broken by excessive force.
be broken by excessive force.
8.7.
Disassembling the Optical
Pickup Unit
Pickup Unit
1. Remove the hook of the FPC holder, then remove the FPC
holder itself.
2. Remove the screw.
3. Release the tab, then remove spring holder 1.
Note
Be sure not to lose the spring.
4. Remove the guide shaft.
Note
Be sure to adjust the optical pickup tilt after replacing
the optical pickup.
(Refer to section 11.12, Opitcal Pickup Tilt Adjustment.)
the optical pickup.
(Refer to section 11.12, Opitcal Pickup Tilt Adjustment.)
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TC-15DT2
8.8.
Disassembling the Nut Unit
1. Remove the screw.
Notes
•
•
•
• The nut unit is not part of the optical pickup.
Before replacing the optical pickup, remove the nut
unit for use with the new optical pickup.
unit for use with the new optical pickup.
•
•
•
• After installation, use screw lock to lock the screw in
position.
•
•
•
• When reassembling, use screw lock to lock the
screw in position after attaching it.
8.9.
Disassembling the Sub-Shaft
Preload Spring
Preload Spring
1. Remove the screw.
Notes
•
•
•
• Handle the sub-shaft preload spring carefully
because the shape of the tip is easily deformed.
•
•
•
• The sub-shaft preload spring is not part of the optical
pickup. Before replacing the optical pickup, remove
the sub-sahft preload spring for use with the new
optical pickup.
the sub-sahft preload spring for use with the new
optical pickup.
•
•
•
• After installation, use screw lock to lock the screw in
position.
8.10. Assembling the Optical Pickup
1. Install the optical pickup.
Note
Take care not ot attach the tilt spring and guide shaft in
the wrong order.
the wrong order.
2. Fit the protruding part of the pickup FPC into the convexpart
of the FPC holder to install it.
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TC-15DT2
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