Panasonic AWSW350P - SWITCHER, Service Manual

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INF-2
2. Version upgrade Method of using ROM changer board
A. Preparation
ITEM REMARK
ROM changer board VFK1667
Version Upgrade Data mot format file
B. Version Upgrade Procedure
1. Install the new version software (ROM) on the ROM changer board (VFK1667).
2. Make sure that the power is turned OFF.
3. Remove the bottom plate, and connect the ROM changer board to the 50P connector.
4. Set the “Baud Rate” switch on the ROM changer board to the center position.
Since write protection is not activated, write operation can be started regardless of WRITE/PROTECT
selection.
5. Press the START button twice. Then the green LED on the board turns off and the red LED will blink at
random. Erase the program and then write new program. (*1)
6. Confirmation of completion:
(a) Green LED lights : completed successful
(b) Red LED, green LED blinks : error
After completed successfully, the Main unit goes into the sleep mode. If will start after power is turned
off and then on again.Turn off power and remove the board.If it was error, press the START button to
re-write. (*2)
(*1) If the operation ends with an error after writing, it is impossible to re-write once power of the Main
unit is turned off. Try writing again by pressing START button.
(*2) In case of an error (red LED won't blink) after START, turn power off, set the BAUD RATE switch to
either position and retry writing. Normally, used at "0" position but another position may be effective.
Green LED Red LED
Initial status
Blinks Unlit
Erase after start Unlit Blinks
Write after start Unlit Blinks at random
Normal completion Lights Unlit
Abnormal completion Blinks Lights
State of LED
START
WEITE/
PROTECT
BAUD
RATE
GREEN
LED
RED
LED
Erase/write
software
ROM
ROM
：
Light
：
Unlit