POS-500 Error Messages

System failure or showing error messages …

1. BIOS RAM checksum error--- System halted
   When the checksum of the BIOS code is incorrect, this is an indication that the BIOS code may have become corrupt.
   Contact your dealer to replace the BIOS.
   
2. CMOS battery failed
   This is an indication that the CMOS battery is no longer functioning.
   Contact your dealer to replace the battery.
   
3. CMOS checksum error--- Default loaded
   When the checksum of the CMOS is incorrect, the system loads the default product configuration. A checksum error may be display to indicate the CMOS has become corrupt. This is also an indication of a weak battery that may have caused this error.
   Contact your dealer to replace the battery.
   
4. CPU at nnnn
   This display indicates the running speed of the CPU.
   
5. Press ESC to skip memory test
   The user may press Esc to skip the full memory test.
   
6. Floppy disk fail
   This is an indication that the system cannot initialize the floppy drive controller or find the drive. Check and make sure that the floppy drive is installed correctly.
   
7. HARD DISK initializing please wait a moment...
   This is an indication that some hard drives require extra time to initialize.
   
8. HARD DISK INSTALL FAILURE
   This is an indication that the system cannot initialize the hard drive controller or find the drive. If no hard drives are installed, be sure that the Hard Drive selection in Setup is set to NONE. Also check and make sure that the hard drive is installed correctly.
   
9. Hard disk diagnosis fail
   There is a possibility that the system may run specific disk diagnostic routines. When this message appears, this is an indication that one or more hard disks did return an error when the diagnostics ran.
   
10. Keyboard error or no keyboard present
    This is an indication that the system cannot initialize the keyboard. Check and make sure that the keyboard is attached correctly and no keys are pressed or locked in place during POST.
    
11. Memory test
    This message will appear in the display during a full memory test, indicating the count down of the memory areas being tested.
    
12. Memory test fail
    If POST detects an error during memory testing, there is an additional information appearing on the display, giving the type and location of the memory error.
    
13. Primary master hard disk fail.
    This is an indication that the POST detects an error in the primary master IDE hard drive.
    
14. Primary slave hard disk fail.
    This is an indication that the POST detects an error in the primary slave IDE hard drive.
    
15. The screen displays a keyboard error message when you turn on or reset the POS 500.
    Make sure to check the keyboard is securely connected to the keyboard port, and that no pins in the connector are missing or bent.
    
16. The items that appear on the screen do not correspond to the keyboard options.
    This is an indication that your keyboard may not be mapped properly for the system. Check and see if a standard PC/AT keyboard connected to your PS/2 connector is working properly.
    
17. There is no display on the screen.
    Make sure to check that the monitor is turned on and plugged in.
    
18. The power switch is on, but the power light is not on.
    Make sure to check the electrical outlet for power.
    
19. You see a floppy disk error message.
    Make sure to check the floppy disk connectors are properly connected.
    
20. A newly installed hard disk drive is not working properly.
    -Make sure that you have installed the drive correctly. Check that the cable has been fully inserted into the connector.
    -Run the BIOS setup again and make sure the system is auto-sensing the correct drive type.
    
21. A device attached to a serial port is not working.
    -Make sure that the cable is securely connected. Also be sure that the COM ports are set properly in the BIOS setup utility.
    -Check and make sure that the jumper or connector on the device are set correctly.
    
22. A device attached to the LPT1 port is not working properly.
    Check and make sure that the device has power and is properly connected to the POS 500.
    
23. An expansion slot card installed in the expansion module is not working.
    Unlock the bracket screw and pull it out, try reinserting the card again. Check and make sure that the expansion module is installed correctly. Also, be sure that the card and socket services software is installed correctly. At the same time, check that the correct card drivers and utilities are installed. The supplied card and socket services software supports most PC cards, but some do require special drivers or software. Read the documentation that came with the card for more information.

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POS-112  Troubleshooting

No picture display...

• Check if the VGA signal cable is connected to the display card of the computer.
• Check if the display card should be completely seated in its slot.
• Check if the Power Button and computer power switch is ON position.
• Check to make sure that a supported mode has been selected on the display card or system being used. (Please consult the display card or system manual to change graphics mode.)
• Check the monitor and your display card with respect to compatibility and recommended settings.
• Check the signal cable connector for bent or pushed-in pins.

The monitor does not seem to be on...

• Check if the Power LED indicator is green.
• Check if the Power button is in the ON position and power cord should be connected.
• Make certain the computer is not in a power-saving mode (touch the keyboard or mouse). This mode is detected when the Power LED is amber color.

No Power...

• Check if the Power button of the LCD monitor is responding by turning On/Off for a couple of times.
• Unplug the power cord of the monitor from the AC outlet to turn off and reset the monitor, or simultaneously press the RESET and Power.

Unstable Image, poor or swimming focus...

• Check if the VGA signal cable is completely attached to the computer.
• Use the OSD controls adjust the image display by increasing or decreasing the FOCUS control. Settings may need to be re-adjusted to attain adequate focus, use the Auto Adjust OSD.
• Check the compatibility of the monitor and your display card with respect the recommended signal timings.
• If your text is garbled, change the video mode to non-interlace and use 60Hz refresh rate.

Poor Display image size...

• Use the OSD controls to increase or decrease the Horizontal Size.
• Make sure to check that a supported mode and signal timing has been selected on the display card or system being used. (Please refer to your display card or system manual if you intend to change the graphics mode or refresh rate.)

Poor resolution display...

• Proceed to the OSD menu and check if the appropriate Display Resolution is properly selected.

Image persistence...

• Image persistence happens when a "ghost" of an image remains on the screen even after the monitor has been turned off. Unlike the CRT monitors, LCD monitor's image persistence is not permanent. If an image was on the monitor for one hour and a "ghost" of that image remains, the monitor should be turned off for one hour to erase the image. The supplier recommends that all personal display devices to use a screen saver at regular intervals whenever the screen is idle.

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