Compaq 1600XL Maintenance & Service Manual page 61

Model 1600T, 1600-XL140, 1600-XL141, 1600-XL142, 1600-XL143, 1600-XL144,
1600-XL146, 1600-XL147, 1600-XL150 XL156, XL157, XL255, XL256, XL257, and XL258
Error Code Description
200-xx Memory machine ID test failed
Memory system ROM checksum failed 2. Replace the system board and retest.
202-xx
203-xx Write/Read test failed
204-xx Address test failed
211-xx Random pattern test failed
214-xx Noise test failed
215-xx Random address test failed
Error Code Description
300-xx Failed ID Test
301-xx Failed Self Test/Interface Test
302-xx Failed Individual Key Test
304-xx Failed Keyboard Repeat Test
Error Code Description
401-xx Printer failed or not connected
402-xx Failed Port Test
403-xx Printer pattern test failed
P N M
RESARIO OTEBOOK AINTENANCE AND
Presario 1600XL Series
Memory Test Error Codes
Keyboard Test Error Codes
Parallel Printer Test Error Codes
S G 1600XL S
ERVICE UIDE ERIES
Recommended Action
1. Flash the system ROM and retest.
1. Remove the memory module and
retest.
2. Install a new memory module and
retest.
Recommended Action
1. Check the keyboard connection. If
disconnected, turn off the computer
and reconnect the keyboard.
2. Replace the keyboard and retest.
3. Replace the system board and retest.
Recommended Action
1. Connect the printer.
2. Check power to the printer.
3. Install the loop-back connector and
retest.
4. Check port and IRQ configuration.
5. Replace the system board and retest.
T 13
ROUBLESHOOTING