After Making Repairs - Panasonic DMR-EZ45VEB Service Manual

DMR-EZ45VEB
10.3. (DVD) STANDARD INSPECTION SPECIFICATION AFTER MAKING
REPAIRS
After making repairs, we recommend performing the following inspection, to check normal operation.
No.
1 Turn on the power, and confirm items pointed out.
2 Insert RAM disc.
3 Enter the EE (TU IN / AV IN - AV OUT) mode.
4 Perform auto recording and playback for one minute using
the RAM disc.
5 If a problem is caused by a VCD, DVD-R, DVD-Video,
Audio-CD, or MP3, playback the test disc.
6 Models with DV Input Jack: In case of that the trouble is
caused by DV terminal.
7 After checking and making repairs, upgrade the firmware to
the latest version.
8 Transfer [9][9] in the service mode setting, and initialize the
service settings (return various settings and error
information to their default values. The laser time is not
included in this initialization).
Use the following checklist to establish the judgement criteria for the picture and sound.
Item
Block noise
Crosscut noise
Dot noise
Picture
Picture disruption
Not bright enough
Too bright
Flickering color
Color fading
Procedure
Contents Check
Item to Check
Items pointed out should reappear.
The Panasonic RAM disc should be recognized.
No abnormality should be seen in the picture, sound or operation.
No abnormality should be seen in the picture, sound or operation.
*Panasonic DVD-RAM disc should be used when recording and
playback.
No abnormality should be seen in the picture, sound or operation.
Models with DV Input Jack;
1) DV terminal: Check to be able to record from DVC.
Make sure that [UPDOK] appears in the FL displays.
Make sure that [CLR SERV] appears in the FL display.
After checking it, turn the power off.
Item
Distorted sound
Noise (static, background noise, etc.)
The sound level is too low.
Sound
The sound level is too high.
The sound level changes.
44
Contents Check