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Sharp MZ-80P6 Service Manual page 14

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ASSOCIATION WITH B039
CIRCUIT
8039
Check reset circuit.
Check oscillator
circuit.
Correct and back to
"START"
step.
Check IC21.
8039
Check IC18 or
pattern discontinued.
74l~:S04
Check
IC20.
2716
Check IC21, or
pattern
touch.
Correct and back
to
"START"
step.
Correct
and
back to
"START"
step.
-12-
CHECK OF 8085
CIRCUIT
Check of ROM (2732)
Check of 8155
Check of IC15
74LS244
Check oscillator
circuit.
Check reset circuit.
GJi'eck R44.
Check pattern.
Check
pattern.
Check
each
bus
line.

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