Mitsubishi Electric apricot VS660, System Product Manual

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6-12
Solving Problems
Error and Information Messages
Error Message Explanation
8042 Gate - A20 Error Gate A20 on the keyboard cont4oller (8042) is
not working. Replace the 8042.
Address Line Short! Error in the address decoding circuitry on the
baseboard.
Cache Memory Failure, Do Not Enable
Cache! Cache memory is defective.
CH-2 Timer Error Most AT systems include two timers. There is
an error in timer 2.
CMOS Battery State Low CMOS RAM is powered by a battery. The
battery power is low. Replace the battery.
CMOS Checksum Failure After CMOS RAM values are saved, a
checksum value is generated for error
checking. The previous value is different from
the current value. Run Setup.
CMOS System Options Not Set The values stored in CMOS RAM are either
corrupt or nonexistent. Run Setup.
CMOS Display Type Mismatch The video type in CMOS RAM does not match
the type detected by the BIOS. Run Setup.
CMOS Memory Size Mismatch The amount of memory on the baseboard is
different than the amount in CMOS RAM. Run
Setup.
CMOS Time and Date Not Set Run Setup to set the date and time in CMOS
RAM.
Diskette Boot Failure The boot disk in floppy drive A: is corrupt. It
cannot be used to boot the system. Use
another boot disk and follow the screen
instructions.
DMA Error Error in the DMA Controller.
DMA #1 Error Error in the first DAM channel.
DMA #2 Error Error in the second DMA channel.