Samsung SCX-483xFD Service Manual page 106

2) Machine Test
Switch Test
Use this feature to test all keys on the operation control panel. The result is displayed on the LCD window
each time you press a key.
Test Param Set (Handset Model only)
You can set the parmeter for handset standard.
Caution : The parameter value is set at the best condition in the shipment from factory.
Modem Test
Use this feature to hear various transmission signals to the telephone line from the modem and tocheck the
modem. If no transmission signal sound is heard, it means the modem part of the mainboard malfunctioned.
Dram Test
Use this feature to test the machine's DRAM. The result appears in the LCD display.If all memory is working
normally, the LCD shows << O K >>ROM TEST
Use this feature to test the machine'S ROM. The result and the software version appear in the LCD display.
• FLASH VER : 1.00 V
• ENGINE VER :1.00V
Pattern Test
Using this pattern printout, you can check if the printer mechanism is functioning properly.It is needed in the
production progress. Service person doesn't need to use it.
Shading Test
The function is to get the optimum scan quality by the speci c character of the CIS (Contact Image Sensor).
If the copy image quality is poor, perform this function
to check the condition CIS unit.
EDC
There are 3 sub item in this menu.
They are NVM Read/Write, NVM initial, Test Routines. Use this function to check the status of the
components in the machine.
Restart Machine
You can reboot the machine by using a key without mechanic rebooting.
Service Manual
SCX-483x/5x3x series
4. Alignment and Troubleshooting
4-26
Samsung Electronics