MICORVAX II & III ERROR CODES FOR THE CPU LEDS
  
DESCRIPTION
  
The diagnostic light display is for Microvax II and III CPU LEDs.
Interrupt level #31 is the highest priority, a hardware fault, and is usually fatal.
Interrupt levels #16-31 are high level, time critical.
Interrupt levels #0-15 are normal.  0 is the lowest priority.
Lights on the CPU board.
CODE	Error Condition
0	Test Complete	no lights on	last to be run
1	Bootstrap device found
2	Search for bootstrap device
3	Run interrupt test
4	CPU instruction and register tests
5	Run test on Q-22 nap to local memory
6	Run address test on RAM
7	Run data test on RAM
8	Language inquiry or CPU halted (if step passes, get version # on CRT)
9	Identify console
A	Test video display
B	Reading KA-630-A IPCR register
C	Search for RAM required for ROM programs
D	Run checksum on CPU ROM
E	Waiting for P OK
F	Waiting for DC OK	all lights on	first to be run
  
SEE ALSO
  
Dec hardware manuals.