Sanyo PDP-42XR8DA, Service Manual, Page: 11 / 41

9
Method of software upgrading
1: Software writing and upgrade method with ISP writing-device.
(1)
Main board upgrade: connect a four-pin wire of the ISP writing-device to Debug port(X806)
on the main board; Unit upgrade: connect VGA ports of the ISP writing-device and the main
board, enter factory menu and set “ISP Mode” to “ON”.
(2) Using Mstar writing-tool on line, click “Connect” menu, if it displays “Device EN25B32“ as
shown in fig2, the connection is success, if it fails, select “EN25B52” of “Device” manually
and press “Connect” again.
Fig2 Device EN25B52 successful connection
(3)
Click “Read” and select the file written (MERGE.bin for example) as shown in fig3.
Fig3 the written file
(4) Click “Auto”, select “All chip”, “program” and other items as shown if fig4.