– 104 –
LD301 blinks 9 time.
Communication error.
Is DC 35V being output at
terminals C and D? (Normally,
DC 33-38.5V is output.)
Yes
Interface relay
Coil terminal
Contact terminal
Is DC 35V being output across R914?
Is DC 12V 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?
Check the interface curcuit.
Yes
Yes
No
No
Yes
D907 and C910 may be defective.
There is a 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.).
Repalce the interface relay.
No
0274E Pg 97-118(RAI-50NH5) 19/10/05, 3:37 PM104
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