Minolta Di251f Service Manual page 161

.
Item
Symptom
No.
Automatic recep-
tion disabled
Cause
1 Did you select the auto-
matic reception mode?
2 Is the external telephone on
hook?
3 Any improvement after
replacing NCU board?
4 Any improvement after
replacing the cable between
NUC and FAX1?
5 Any improvement after
replacing FAX1 board?
6 Any improvement after
replacing MFB2 board?
7 Any improvement after
replacing AOP board?
8 Any improvement after
replacing the cable between
AOP and MFB2?
YES Go to item 2
Select the automatic recep-
NO
tion mode.
YES Go to item 3.
Set the external telephone
NO
on-hook.
YES Replace NUC board.
NO Go to item 4.
Replace the cable between
YES
NUC and FAX1.
NO Go to item 5.
YES Replace FAX1 board.
NO Go to item 6.
YES Replace MFB2 board.
NO Go to item 7.
YES Replace AOP board.
NO Go to item 8.
Replace the cable between
YES
AOP and MFB2.
NO Replace the PWB-A
T-14
Remedy