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3. BASIC ITEMS FOR SERVICE
3.1 CHECK POINTS AFTER SERVICING
Check points after servicing (DVD player)A
To keep the product quality after servicing, confirm recommended check points shown below.
No.ProcedureCheck points
1Confirm the firmware version on Service Mode.The version of the firmware must be latest.
Update firmware to the latest one, if it is not the latest.
Confirm whether the customer complain has been solved. The customer complain must not be reappeared.
2If the customer complain occurs with the specific disc, Video, audio and operations must be normal.
use it for the operation check.
Confirm playback error rates at the innermost and The error rates must be less than 5.0e-4.
3outermost tracks by using the following disc.B
DVD test disc (GGV1025)
Play back a DVD.Audio and operations must be normal.
4
(Menu operation, Title/chapter search)
Play back a DVD.Video, audio and operations must be normal.
5
(Menu operation, Title/chapter search)
Check the appearance of the product.No scratches or dirt on its appearance after receiving it
6
for service.
See the table below for the items to be checked regarding video and audio:
C
Items to be checked regarding videoItem to be checked regarding audio
Block noiseDistortion
Horizontal noiseNoise
Dot noiseVolume too low
Disturbed image (video jumpiness) Volume too high
Too darkVolume fluctuating
Too brightSound interrupted
Mottled colorD
E
F
15
DV-300-K
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