AMSTRAD PC1640 - Troubleshooting Chart

Trouble
3E
See
error
command
of
FDC.
See
this
maintenance
maunal
to other
mechanical
troubles.
NO
YFS
MO
YES
->-
->-
Change LED
Is write protect
signal
received?
Medium
may
be
damaged.
U—
YES
—
NO
Cannot
write
-
YES
>~
Does it write if
medium
is changed?
Y
NO
\/
Is write
protect seal
stuck
on medium?
NO
V
YES
Write protect sensor has
failed. Check write
protect circuit and its
periphery.
is head
cord damaged
or
disconnected?
V
NO
Remove seal
YES
Exchange head
Is write
gate
correctly
opened?
YES
NO Check
circuit
check
system
Is
setting
appropriate?
YES
NO
Drive
NG
(stepping
motor)
Check circuit
15