Samsung 400DXn Service Manual page 31

4. Troubleshooting
4-7 Program Update – Micom (MCU)
1. Connect a RS-232C to Stereo cable between the COM1 port on the PC and Stereo jack backside of the
monitor.
2. Enter Service Mode and move to "Option" menu.
3. Set SW Download Mode to "AnalogTV" by using ▼ or ▲ key on the remote control.
OPTION
Suwon CH. Table
Erase NVRam
PC CABLE DETECT
SW Download Mode
iDTV WatchDog
4. Execute the file "Gprobe 5.4.0.3.exe" included in Gprobe.zip, Install "Gprobe".
The recommended directory is C:\Programfiles\Genesis Microchip\Gprobe 5
5. Execute "Gprobe"
6. GProbe Option Setting
Options (On Menu bar) -> Connection Settings (F10)
7. Connection tab Set connecting device to "Serial".
4-16
RS232C to Streo cable (AA39-00311A)
On
Analog TV
ENABLE