The service manual is as described and received the link to the download sooner than expected. Great service, quality product. This site is a big help in the electronics repair business.
Il service manual molto accurato. Rapidi nella risposta
Text excerpt from page 37 (click to view)
7. SOFTWARE UPGRADE Method
1. Check whether MAIN PCB is connected to SUB PCB(JP117 to JA109). 2. Connect 9-PIN serial cable to the serial port of the computer. 3. Connect the opposite end of the serial cable to RS-232C port of SUB PCB. 4. Run Flashupgrader.exe in the PC to excute the program as shown below.
5. Select current Upgrade file - Click �Choose...� button to select the file you want to upgrade. - Select the file (pwSDK.inf) that you want to upgrade.