User`s guide

Soft Switches:M
AA= 03 BB= State Register bit CC= Read addr. Low Byte
Address Test:K
AA= 04 BB= __: Bank number CCDD= Failed RAM Address
FF: ADB Tool error
Speed Test (FPI):
AA= 05 BB= 01: Stuck slow
02: Stuck fast
Note: If a ZipGS accelerator card is installed and not disabled
and DIP Switch 1-4 (Defeat Counter Delay) is not set OFF (the
default setting), your GS will bomb on Test 05. John Link reports
that a TransWarp GS with the v1.5 ROM will fail the Speed Test.
In neither case does failure indicate any actual malfunction.
Serial Test:1
AA= 06 BB= 01: Register R/W
04: Tx Buffer empty status
05: Tx Buffer empty failure
06: All Sent Status fail
07: Rx Char available
08: Bad data
Clock Test:H
AA= 07 DD= 01: Fatal error occurred - test aborted
Bat RAM Test:F
AA= 08 BB= 01: Addr. unique CC= bad addr
02: NV RAM pattern CC= bad patt DD= bad addr
ADB Test:J
AA= 09 BBCC= Bad checksum DD= 01: Fatal error
Shadow Register:
AA= 0A BB= 01: Text page 1 fail
02: Text page 2 fail
03: ADB Tool call error
04: Power on Clear bit error
Interrupts Test (Mega II and Video Graphics Controller):
AA= 0B BB= 01: VBL interrupt time-out
02: VBL IRQ status full
03: 1/4 sec interrupt
04: 1/4 sec interrupt
06: VGC IRQ
07: Scan line
Note: There are reports that if a ZipGS accelerator card is installed
and not disabled, then, your GS may fail parts of this test depending
upon DIP Switch settings. Such a failure does not necessarily indicate
a hardware fault.