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3. BASIC ITEMS FOR SERVICING
3.1 CHECK POINTS AFTER SERVICING
Check points after servicing (CD RECEIVER)
To keep the product quality after servicing, confirm recommended check points shown below.
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See the table below for the items to be checked regarding video and audio:
Item to be checked regarding audio
Distortion
Noise
Volume too low
Volume too high
Volume fluctuating
Sound interrupted
Procedure
Check points
Check the tuner (AM and FM) operations.
Audio and operations must be normal.
Confirm whether the customer complain has
been solved. If the customer complain occurs
with the specific disc, use it for the operation
check.
Confirm playback error rates at the innermost
and outermost tracks by using the following disc.
DVD test disc (GGV1025)
The error rates must be less than 5.0e-4.
It can be confirmed if the Drive is degraded.
The customer complain must not be reappeared.
Audio and operations must be normal.
Confirm 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.
Check the appearance of the product.
No scratches or dirt on its appearance after
receiving it for service.
Play back a CD. (track search)
Audio and operations must be normal.
Play back a SACD. (track search)
Audio and operations must be normal.
Check the sound from headphone output.
Sound must be normal, without noise.
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
