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KX-T4330
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3) DOES NOT ANSWER TELEPHONE CALL.
is there a high level at pin 15
of IC9 when a ring signal is
present?
Check the telephone cord and
RING DETECTOR (PC1, R423,
C209).
Is the voltage at pin 15 of IC9 ata
high level duty more than 60%
when receiving a ring signal?
Check ICQ.
4) elICM CONTINUES TO RECORD AFTER THE CALLER HANGS UP.
@END OF MESSAGE CLIPPED WHEN CALLER HANGS UP.
When caller hangs up, the KX-T4330 can detect the following 4 signal type.
A. CPC pulse.
B. Dial tone or other continuous tones.
C. Silence.
D. Cyclic signals.
A. Check CPC DETECTOR CIRCUIT (D103, R504, R503, PC4, IC9 pin 15).
B., C., D.
Check VOX DETECTOR (IC9 pin 47).
oI REMOTE CONTROLLER DOES NOT WORK/RESPONSE IS POOR.
The following are considered for the causes of no remote reception:
A. |Isthe security code the same as set on the unit.
B. High distortion in LINE OUTPUT CIRCUIT causing interference Bewens the transmitting signal and the
remote signal.
C. Excessive loss in telephone line.
A. Check the security code of the unit.
B. Check LINE OUTPUT CIRCUIT (Q52).
C. Test on telephone line known to be working properly.
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