Panasonic KX-TA624 Installation Manual page 368

6.3 Operation
PROBLEM
When using the speaker-
phone with a proprietary
telephone, KX-T7135,
KX-T7130 or KX-T7030,
nothing is heard.
The unit does not ring.
During a power failure, the
extension connected to
JACK 01 or 09 does not
operate.
Originating an outside call
cannot be performed.
A tone type single line
telephone (SLT) user
cannot make a call.
6-4 Troubleshooting
PROBABLE CAUSE
The HANDSET/HEADSET
selector on the KX-T7135,
KX-T7130 or KX-T7030 is
set to the "HEADSET"
position.
The Ringer Volume
Selector is set to "OFF".
A PT is connected to the
jack.
The corresponding CO
button does not exist on
the proprietary telephone.
There may be something
wrong with a DTMF
receiver.
POSSIBLE SOLUTION
When the headset is not used, set
the HANDSET/HEADSET selector
to the "HANDSET" position.
Set to "HIGH" or "LOW".
Disconnect the PT and connect a
single line telephone.
Program the CO button. See the
Flexible Button Assignment in the
User Manual.
1. Select "Enable" for DTMF
receiver 1 and "Disable" for
DTMF receiver 2 in program
[107].
2. Make a call using a tone type
SLT connected to one of
extension jacks 01 – 08.
3. If you cannot make the call, the
problem may have been caused
by DTMF receiver 1. If the call
can be made, go to step 4.
4. Try DTMF receiver 2. Select
"Disable" for DTMF receiver
1 and "Enable" for DTMF
receiver 2 in program [107], and
make another call. If you cannot
make the call, the problem may
have been caused by DTMF
receiver 2. If the call can be
made, go to step 5.
5. Check the other four DTMF
receivers in the same way. Refer
to program [107].