B
NO
+5V / PRESENT?
YES
32 MHz / CLOCK / PRESENT?
REPLACE / OSCILLATOR
NO
REPLACE POWER / SUPPLY
NO
+5V / SHORTED TO / GROUND?
YES
YES
MC68030 / HALTED?
YES
INSPECT MAIN / PCB FOR / SHORTED +5V
NO
NO
REPLACE / MCU
REPLACE / MCU OR / MC68030
FOUND / SHORT?
YES
RS-232 / DISPLAY?
YES
NO
NO
DIAGNOSTIC / ERROR?
YES
REPLACE MAIN / PCB
REMOVE SHORT / AND RECHECK
SEE THEORY OF / OPERATION, CALL / TECH SUPPORT, / OR REPLACE MAIN / PCB
NO
REPLACE PARTS / PER / DIAGNOSTIC / GUIDE
C
