HP 330 Service Information Manual page 180

Table 5-4b, Model 330/350 Boot ROM LED State and Failure Codes
Continued frorn previous page.
Explanation
RAM gone above FFFFCOOO, no memory found
LEDs Failed to acknowledge or LED ripple
CPU register test failure, or bad MC68020
Boot ROM checksum failure, or bad Boot ROM
RAM failure above FFFFCOOO, or memory is bad
RAM failure, or part of memory is bad
Insufficient RAM to self-test or boot system
System Interface Board Keyboard Electronics Failure
Bad keyboard circuit, not system interface board
System interface board HP-IB failure
D11A failure on system interface board
Character font for video board missing or bad
Video board failed
Alpha video card failure
Graphics failure on alpha/graphics board
I/O card on select code 0 failure
I/O card on select code 1 failure
through
I/O card on select code 9 failure
through
I/O card on select code 31 failure
LEDs never accessed (or LED ripple)
164
Troubleshooting
LED Code
o •
0 0 O. 00
0 • • • • • • •
• 0 0 0 0 0 O.
. 0 0 0 0 0 • •
• 0 0 0 0 • 00
• 0 0 0 • 0 O.
. 0 0 0 • 0 . 0
• 0 0 • 0 0 . 0
. 0 0 . 0 0 • •
• 0 O. 0 • 00
• 00 • • 0 00
. 0 0 • • • 00
• 0 0 • • •
O.
. 0 0 • • • • 0
. 0 0 • • • • •
• 0 • 0 0 0 00
• 0 • 0 0 0 O.
through
• 0 • O. 0 O.
through
.0 • • • • • •
••••••••