Caution For Replacing Parts - Panasonic SA-BT230P Service Manual

3.2.

Caution for Replacing Parts

3.2.1. Items that should be done after replacing parts
Note 1:
Download latest Firmware and burn it on CD-R or CD-RW, and update Firmware.
3.2.2. 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.
2 Insert RAM disc.
4 Perform playback for one minute using the RAM disc.
5 Perform playback for one minute using the BD-Video disc.
6 If a problem is caused by a BD-Video disc, 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 ser-
vice settings (return various settings and error information to
their default values. The laser time is not included in this initial-
ization).
Use the following checklist to establish the judgment criteria for the picture and sound.
Item
Picture Block noise
Crosscut noise
Dot noise
Picture disruption
Not bright enough
Too bright
Flickering color
Color fading
Procedure
Contents
Items pointed out should reappear.
The Panasonic RAM disc should be recognized.
No abnormality should be seen in the picture, sound or operation.
*Panasonic DVD-RAM disc should be used when recording and play-
back.
No abnormality should be seen in the picture, sound or operation.
No abnormality should be seen in the picture, sound or operation.
Make sure that [UPD OK] appears in the FL displays.
*[UNSUPPORT] display means the unit is already updated to newest
same version. Then version up is not necessary.
Make sure that [CLR] appears in the FL display.
After checking it, turn the power off.
Check Item
Sound Distorted sound
Noise (static, background noise, etc.)
The sound level is too low.
The sound level is too high.
The sound level changes.
12
Item to Check
Contents Check