Compaq 386 manual Advanced Diagnostics Error Codes

Maintenance and Service Guide 5-13

Table 5-2. Advanced Diagnostics Error Codes Continued

Error		Recommended
Code	Description	Action
402-13	Printer interrupt, loopback and data	The following steps apply to error codes 401-xx
	register failed.	through 498-xx:
402-14	Printer interrupt, loopback and control	1.	If a printer is connected, be sure it is turned ON and in
	register failed.		the ONLINE mode.
		2.	Check the switch settings and jumper positions on
402-15	Printer interrupt, loopback data and
			the multipurpose fixed disk controller board (see
	control register failed.
			Chapter 8).
402-16	Printer unexpected interrupt received.
		3.	Replace the printer and/or the printer cable and retest.
403-01	Printer pattern test failed.	4.	Replace the multipurpose fixed disk drive controller
			board.
498-00	Printer failed or not connected.
		5.	Replace the system board and retest.
Video Display Unit Test
501-01	Video controller test failed.	The following steps apply to error codes 501-xx
		through 516-xx:
502-01	Video memory test failed.
		1.	Replace the monitor and retest.
503-01	Video attribute test failed.
		2.	Replace the video display controller board and retest.
504-01	Video character set test failed.
		3.	Replace the system board and retest.
505-01	Video 80 × 25 mode 9 × 14 character
	cell test failed.
506-01	Video 80 × 25 mode 8 × 8 character cell
	test failed.
507-01	Video 40 × 25 mode test failed.

Continued...

Addendum 108431-001 (11-88) to Manual No. 108033-003