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(6) No transmission
and reception when the fax is
off hook condition and the START switch is
pressed
(7) Manual dial cannot be made
For external telephones:
Is the HS/LOOP (CN3-5) High ?
NO
YES
+&
circuits
peripheral circuits
For internal telephones:
Is the /DHS (CN31-4) High ?
NO
YES
Y
1
Check Hook switch
Check IC14
Is the setting of the dialing method correct ?
(8) Tx. and Rx.cannot
be made (but copying is possible)
I
I
1
1
Is the tel line properly connected
I
~
Can the DIS, DCS etc. signals be transmitted
?
&,&,
+
Can V29, V27 ter (9600 -2400BPS)
signals be
transmitted
?
I
1
NO
Check RXINA (IC13
15pin) and DCLK (IC1O 89pin)
23
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Table of Contents
Troubleshooting
