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Step
1
While power is ON, short IC7503-1 pin (RESET) and
the GND.
15. Standard Inspection Specifications 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. Items pointed out should reappear.
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
Model with the HDD : Perform auto recording and
playback for one minute using the HDD
6
If a problem is caused by a VCD, DVD-R, DVD-
Video, Audio-CD, or MP3, playback the test disc.
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).
9
When replacing of RAM drive, transfer [9] [5] in
the service mode setting to delete Laser used
time.
Use the following checklist to establish the judgement criteria for the picture and sound.
Operation
Procedure
43
"RESET (L)" is transmitted to the
terminal of Timer Microprocessor
80 pin), then the unit operates normally.
Item to Check
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.
No abnormality should be seen in the picture,
sound or operation.
*Panasonic DVD-R disc should be used when
recording and playback.
No abnormality should be seen in the picture,
sound or operation.
Make sure that [FIRM_SUCCESS] appears
FL displays.
*[UNSUPPORT] display means the unit is
updated to newest same version. Then version
is not necessary.
Make sure that [CLR SERV] appears in the
display.
After checking it, turn the power off.
Make sure that [CLR LASER] appears in the
display.
After that, turn power off.
Descriptions
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