6 Cautions to be taken when handling Optical Pickup
The laser diode used inside optical pickup could be destroyed due to static electricity as a potential difference is caused by
electrostatic load discharged from clothes or human body. Handling the parts carefully to avoid electrostatic destructionduring
repair.
6.1. Handling Optical Pickup
1. Do not impact on optical pickup as the unit structurally uses an extremely precise technology.
2. Short-circuit the flexible cable of optical pickup remove from the circuit board using a short-circuit pin or clip in order to prevent
laser diode from electrostatic destruction (Refer to Fig. 6.1 and Fig. 6.2)
3. Do not handle flexible cables forcibly as this may cause snapping. Handle the parts carefully (Refer to Fig. 6.1)
4. A new optical pickup is equipped with an anti-static flexible cable. After replacing and connecting to the flexible board, cut the
anti-static flexible cable. (Refer to Fig. 6.1)
Fig. 6.1
6.2. Replacing Precautions for Optical Pickup Unit
DVD/CD Optical Pickup
The optical pickup by which part supply was carried out attaches the short clip to the flexible board for laser diode electrostatic
discharge damage prevention. Please remove the short clip and be sure to check that the short land is open, beforeconnecting.
(Please remove solder, when the short land short-circuits.)
6.3. Grounding for Preventing Electrostatic Destruction
1. Human body grounding
Use the anti-static wrist strap to discharge the static electricity accumulated in your body. (Refer to Fig. 6.2)
2. Work place grounding
Place a conductive material (conductive sheet) or ironboard where optical pickup is placed. (Refer to Fig. 6.2)
Note :
Keep your clothes away from optical pickup as wrist strap does not release the static electricity charged in clothes.
Fig. 6.2
6
SA-VK81DEE
Summary of Contents for SA-VK81DEE
Page 8: ...8 Accessories Remote control AC cord FM antenna AM antenna Video cable 8 SA VK81DEE ...
Page 9: ...9 Operation Procedures 9 SA VK81DEE ...
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Page 11: ...10 Disc information 11 SA VK81DEE ...
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Page 16: ...12 Procedure for repairing the set 16 SA VK81DEE ...
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Page 68: ...18 3 1 Cassette Deck Section 18 3 2 Adjustment Point 18 3 Alignment Points 68 SA VK81DEE ...
Page 128: ...25 1 Deck Mechanism RAA3412 S 25 1 1 Deck Mechanism Parts Location 128 SA VK81DEE ...
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Page 131: ...25 2 DVD Loading Mechanism 25 2 1 DVD Loading Mechanism Parts Location 131 SA VK81DEE ...
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Page 135: ...25 3 Cabinet 25 3 1 Cabinet Parts Location 135 SA VK81DEE ...
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