– 74 –
LD301 blinks 9 time.
Communication error.
Ye s
Is the power circuit normal?
See the description on power
circuit for details.
Is 36 V DC being output at
terminals C and D? (Normally,
32-39V DC is output.)
Ye s
No
Interface relay
Coil terminal
Contact terminal
Is 36V DC being output across R213?
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?
D207 and C210 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.).
Replace the interface relay.
Check the interface circuit.
No
No
Ye s
Ye s
Ye s
No
To Next Page
Loading...
