Service manual

System Tests 101
C.3 8-Plane Video Option Status and Error Codes
TEST NUMBER ID NAME
----------- ---- ----
4 00D0 8PLN
00yy.xxxx Where :
for soft error ( one question mark is displayed)
yy = soft error - video readback (should be 20 or 21)
xxxx = 0
for hard error ( 2 question marks are displayed)
yy = status code for test that failed
xxxx = error from exerciser error codes
Test numbers:
-------------
program initialization 02
FCC RAM 03
FCC fifo control 04
dragon initialization 05
dragon timing chip 06
video memory 07
ID bus data path 08
FCC data transfers 09
byte packing 10
byte packing ( burst mode ) 11
compression 12
transfer display list command 13
display list commands 14
interrupts 15
cursor 16
VDAC read/write 17
scrolling 18
scrolling ( burst mode ) 19
video readback 20
cursor readback 21
left edge readback 22
right edge readback 23
sync readback 24