Basic Items For Service; Check Points After Servicing - Pioneer DV-120-K Service Manual

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3. BASIC ITEMS FOR SERVICE

3.1 CHECK POINTS AFTER SERVICING

Items to be checked after servicing / DV
To keep the product quality after servicing, confirm recommended check points shown below.
No.
Confirm the firmware version on Test Mode.
1
Confirm whether the customer complain has been solved.
2 If the customer complain occurs with the specific disc, use it for
the operation check.
Play back a CD.
3
(track search)
Play back a DVD.
4
(Menu operation, Title/chapter search)
Check the appearance of the product.
5
Specific Items to be Checked
No.
Confirm playback error rates at the innermost and outermost
1
tracks by using the following disc.
DVD test disc (GGV1025)
See the table below for the items to be checked regarding video and audio.
Item to be checked regarding video
Block noise
Horizontal noise
Dot noise
Disturbed image (video jumpiness)
Too dark
Too bright
Mottled color
5
6
Procedures
Procedures
6
7
The version of the firmware must be latest.
Update firmware to the latest one, if it is not the latest.
The customer complain must not be reappeared.
Video, audio and operations must be normal.
Audio and operations must be normal.
Video, audio and operations must be normal.
No scratches or dirt on its appearance after receiving it for
service.
The error rates must be less than 5.0e-4.
(This procedure can determine if the drive is degraded.)
Item to be checked regarding audio
Distortion
Noise
Volume too low
Volume too high
Volume fluctuating
Sound interrupted
DV-120-K
7
8
Check points
Check points
8
A
B
C
D
E
F
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