Samsung 400DXn Service Manual page 28

OPTION / RESET CHECKSUM Part

Reset: Factory Reset
Reset the settings as factory default value. Need to turn the Power On/Off after reset.
CHECKSUM
The 4 digit serial number regarding the Micom(MCU) and MPEG decoder(CPU) code is displayed if you
select this.
Indicates the version and date of Micom/CPU code below the service menus.
Options
PC Cable Detect: When this menu set "Off", the monitor
dosen't check the Pin #9 of 15 pin D-sub cable. It is used for
some computers opened PC check signal pin.
SW Download Mode: It is possible that micom code and CPU
code download with same port (serial), so select the target IC
to download "AnalogTV" or "IDTV"
IDTV WatchDog: Micom and CPU communicate continually
and the micom send the reset signal to CPU when the CPU
stops operating.
4. Troubleshooting
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