– 192 –
V
V
D907 and C910 may be defective.
There is defective section between the
12V output of switching power supply on
the main P.W.B. and interface relay
(also, check for contact with solder, etc.).
Replace the interface relay.
LD301 blinks 9 times.
Interface relay
Check the interface curcuit.
Is 35V DC being output across R914?
Is 12V DC being supplied across
the control side (coil terminal) of
interface relay?
Is a voltage (at least 10V)being
generated between the contact
terminals of interface relay?
Coil terminal
Contact terminal
Communication error.
Is 35V DC being output at
teminals C and D?(Normally,
33-38.5V DC is output.)
Yes
Yes
Yes
Yes
No
No
No
No