3 Handling Precautions For Traverse Deck
The laser diode in the traverse deck (optical pickup) may break down due to potential difference caused by the static electricity of
clothes or our human body.
So, be careful of electrostatic breakdown during repair of the traverse deck (optical pickup).
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Way of handling the traverse deck (optical pickup)
1. Do not subject the traverse deck (optical pickup) to static electricity as it is extremely sensitive to electrical shock.
2. To prevent the breakdown of the laser diode, an antistatic shorting pin is inserted into the flexible board (FFC board).
3. Do not to apply excessive stress to the flexible board (FFC board). When removing or connecting the short pin, finish the job
in as short time as possible.
4. Do not turn the variable resistor for laser power adjustment. (It is pre-adjusted during production time)
Grounding for electrostatic breakdown prevention
1. Human body grounding
Use the anti-static wrist strap to discharge the static electricity from your body.
2. Work table grounding
Put a conductive material (sheet) or steel sheet on the area where the traverse deck (optical pickup) is place, and ground the
sheet.
Caution :
The static electricity of your clothes will not be grounded through the wrist strap. So, take care not to let your clothes touch the
traverse deck (optical pickup).
Caution when replacing the Traverse Deck
The traverse deck has a short point shorted with solder to protect the laser diode against electrostatics breakdown. Be sure to
remove the solder from the short point before making connections.
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SA-AK340GCP
Summary of Contents for SA-AK340
Page 13: ...8 Operation Procedures 13 SA AK340GCP ...
Page 14: ...14 SA AK340GCP ...
Page 23: ...10 3 Main Parts Location 23 SA AK340GCP ...
Page 40: ...12 2 Checking and Repairing of Transformer P C B 40 SA AK340GCP ...
Page 41: ...12 3 Checking and Repairing of Panel Deck Deck Mechanism P C B 41 SA AK340GCP ...
Page 42: ...12 4 Checking and Repairing of Power P C B 42 SA AK340GCP ...
Page 47: ...47 SA AK340GCP ...
Page 48: ...14 2 Power P C B and Transformer P C B 48 SA AK340GCP ...
Page 49: ...14 3 Waveform Chart 49 SA AK340GCP ...
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Page 87: ...21 Exploded Views 21 1 Cabinet Parts Location SA AK340GCP 87 ...
Page 88: ...SA AK340GCP 88 ...
Page 89: ...21 2 Deck Mechanism Parts Location RAA4502 S SA AK340GCP 89 ...
Page 90: ...21 3 Packaging SA AK340GCP 90 ...
