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3. BASIC ITEMS FOR SERVICE
3.1 CHECK POINTS AFTER SERVICING
To keep the product quality after servicing, please confirm following check points.
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Confirm whether the customer complain has
been solved.
If the customer complain occurs with the
specific media, use it for the operation check.
The customer complain must not be
reappeared.
Display, video, audio and operations must be
normal.
2 DVD
Measure playback error rates at the
innermost and outermost tracks by using the
test mode with the following disc.
DVD test disc (GGV1025)
Deterioration of mecha-drive can be checked.
The error rates must be less than 2.5e-4.
3 DVD
Play back a DVD.
(Menu operation; Title/chapter search)
Display, video, audio and operations must be
normal.
4 CD
Play back a CD.
(Track search)
Display, audio and operations must be
normal.
5 FM/AM tuner
Check FM/AM tuner action.
(Seek, Preset)
Switch band to check both FM and AM.
Display, audio and operations must be
normal.
6
Check whether no disc is inside the product.
The media used for the operating check must
be ejected.
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receiving it for service.
For check items concerning image and voice, please refer to the followings:
Check items concerning image
Check items concerning voice
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Distorted image (Image skip)
High volume
Low brig
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ges in level
Too brig
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Color fading
Partial discoloration
www. xiaoyu163. com
QQ 376315150
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TEL 13942296513
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TEL 13942296513 QQ 376315150 892498299
TEL 13942296513 QQ 376315150 892498299
