Panasonic DVD-S31EG, Service Manual

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8.8. Service Precautions
Recovery after the dvd player is repaired
When an FROM or an EEPROM on the decoder PCB has replaced, carry out the recovery disc processing to optimize the drive.
Playback the disk to process the recovery automatically.
Note:
This unit requires no initialization process carried out after the traditional DVD players were repaired.
When the recovery measures are taken, the customer setting will return to the factory setting as same as the procedure
described in item of "Initialization". Write down the contents of the setting before recovery processing and reset the player.
8.8.1. Firmware version-up of the DVD player
The firmware of the DVD player may be renewed to improve the quality including operationability and playability to the substandard
discs processing to optimize the drive.
Note:
If the AC power supply is shut out during version-up due to a power failure, the version-up is improperly carried out. In such a
case, replace the FROM and carry out the version-up again. The product number of the version-up disc will be noticed when
it is supplied.
8.8.2. Firmware version-up and recovery with disc
• • • •
Recovery
• • • •
Firmware updating
Simply run the recovery disc. Then both of the above operations are automatically performed.
Commercially available CD-R can now perform updating and recovery process, making it easier to update the version.
Recovery process: Optimization of player after replacement of FROM and Decoder PCB.
Version updating: Firmware updating for improved operability and performance
8.8.3. How to use recovery disc
8.8.3.1. Performing recovery
1. Load the recovery disc RFKZD03R004 on to the player and run it.
2. Recovery is performed automatically. When it is finished, a message appears on the screen.
3. Remove the recovery disc.
4. Turn off the power.
8.8.3.2. Updating firmware
1. Load the recovery disc RFKZD03R004 on to the player and run it.
2. Firmware version of the player is automatically checked. Appropriate message appears whenever necessary.
3. Using remote controller´s cursor key, select whether version updating is to be done or not. (Selection of Yes/No)
4. a. If Yes is selected, version updating is performed.
b. If No is selected, only recovery is performed.
5. a. When updating is finished, remove the disc according to the message appearing on the screen.
b. Remove the disc according to the message appearing on the screen.
6. Turn off the power.
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DVD-S35E / DVD-S35EB / DVD-S35EG / DVD-S31EG