Pixel EM-2 - Troubleshooting; Table 9 - Troubleshooting

Telephone Line Powered Auto Dialing emFONE
Product Manual
EM-2
Copyright © 2014 Pixel Technologies Pty. Ltd
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7. Troubleshooting
If a problem is encountered with this product, before returning it for repair, please check for the
following.
PROBLEM
SOLUTION
Telephone line fault
Test the standby telephone line voltage
1. Connect a DC meter across the line terminals
2. PABX line voltage should read 24V DC
3. PSTN/NBN line voltage should read 48V DC
Test the ON telephone line voltage
1. Turn the unit on by pressing the ON/OFF button
2. Connect a DC meter across the line terminals
3. Line voltage will be approximately 7V - 12V DC
No dial tone
 Check the telephone line voltage
 Service may have been disconnected from the service provider.
 Try connecting a standard telephone handset across the line to
test for dial tone.
 If the unit automatically dials when the line is ON the line is
connected to a HOTLINE. Refer to section 3.3.5 for further details.
Alarm button does not work
 Ensure the Alarm button is wired to the switch contacts correctly
and that there is no open circuit condition.
 Alarm button needs to be a dry contact connection.
'i' (Information Button) not working
 By default, this will prompt the unit to dial the information
number (12722123), which if connected to Australia's Telstra
network will retrieve the telephone number of the line the unit is
connected to.
 Please note that this feature will not work if connected to a PABX
system.
Noise on the telephone line
 Noise is usually induced from the trailing cables.
 Microphone leads may be too close to high voltage cabling.
 If an external speaker/microphone is installed, disconnect, make
a call, if the noise has gone, re-route the microphone cable away
from other wire looms.
 Swap the telephone line to another pair of wires.
 Earth the shield of the trailer cable.
Acoustic feedback
 Acoustic feedback will occur if the speaker and microphone are
installed less than 60mm apart. When installing the unit utilizing
the built-in internal speaker and microphone, ensure the unit is
mounted flush on the panel and panel cutouts are in line with the
speaker grill and microphone cutouts of the unit.
Table 9 - Troubleshooting
Please note under no circumstances should you attempt to repair this product at a circuit board level
as this will void the warranty.