User`s guide
The tables below list the fatal and non-fatal error codes.
Error tone codes for fatal errors
Error tone code Description
1-1-3
Real-time clock write/read failure
1-1-4
ROM BIOS checksum failure
1-2-1
Programmable interval timer failure
1-2-2
DMA initialization failure
1-2-3
DMA page register write/read failure
1-3-1
1-3-3
1-3-4
RAM refresh verification failure
First 64KB RAM chip or data line failure (multi-bit)
First 64KB RAM odd/even logic failure
1-4-1,
First 64KB RAM address line failure
1-4-2
First 64KB RAM parity test in progress failure
I
2-1-1
First 64KB RAM failure-bit 0
I
2-1-2
2-1-3
2-1-4
2-2-1
2-2-2
2-2-3
First 64KB RAM failure-bit 1
First 64KB RAM failure-bit 2
First 64KB RAM failure-bit 3
First 64KB RAM failure-bit 4
First 64KB RAM failure-bit 5
First 64KB RAM failure-bit 6
2-2-4 First 64KB RAM failure-bit 7
2-3-1 First 64KB RAM failure-bit 8
2-3-2 First 64KB RAM failure--bit 9
2-3-3 First 64KB RAM failure--bit A
2-3-4
2-4-1
2-4-2
First 64KB RAM failure-bit B
First 64KB RAM failure-bit C
First 64KB RAM failure-bit D
Troubleshooting
A-13