Minolta Di251f Service Manual page 164

.
Item
Symptom
No.
Image memory
(memory stored
for TX image) is
not backed up.
Cause
1 Proceed to the following pro-
cedure. Is the image mem-
ory backed up?
A. TX: Disconnect the line
cable and proceed a
quick memory transmis-
sion. Turn OFF the
power switch while wait-
ing for the answer. Turn
ON the power and check
if data is stored in the
image memory.
B. RX: Turn OFF the power
switch while proceeding
memory reception with-
out printing paper. Turn
ON the power again and
check if data is stored in
the image memory.
2 Is the connector of FAX1
board connected?
3 Is the voltage of +12 V
between CN 7-1 (FAX1) and
AG (TP5) normal?
(+11.4 to +12.6 V)
4 Is the battery voltage appro-
priate? (6.85 V or more)
5 Any improvement after
replacing PSU board?
6 Is the battery full charged?
(Approx. 4hr)
7 Any improvement after
replacing the battery?
8 Any improvement after
replacing FAX1 board?
9 Any improvement after
replacing MFB2 board?
Normal
YES
Go to item 2
NO
YES Go to item 3.
NO Connect the connector.
Go to item 4.
YES
NO Go to item 5.
YES Go to item 8.
NO Go to item 6.
YES Replace PSU board.
NO Go to item 4.
YES Go to item 7.
NO Charge the battery.
YES Replace the battery.
NO Go to item 8.
YES Replace FAX1 board.
NO Go to item 9.
YES Replace MFB2 board.
NO Replace the PWB-A
T-17
Remedy