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SERVICE MANUAL
7-16-3. In the case of no pulse
occurrence, check the parts U306.3 and 4p.
Verify the Loop condition detection part whether the U306.15 is the
normal output.
7-16-4. If the Modem does not work completely, please check whether normal
output level is coming out from U302.
Try to change this component because there is a great possibility of
damage caused externally.
7-16-5. Please check the parts U306.11 and 13.6p whether the normal pulses are
getting out from them. In the case of problem occurrence, try to change
the component because there is a possibility of damage.
S-00-005(96.03.27)
REV.1
Document No
Date of Origin
Date of REV
PAGE REV.
0
51-L-DSR004
98-10-21
PAGE
46/102
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