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TROUBLESHOOTING
Symptom:
System is dead, LCD screen is blank.
Possible causes:
Blown fuse in 12VAC transformer-replace transformer, do not short secondary terminals
together.
Thermal fuse on MLS-SPU1 board triggered-check for and remove short circuit between
"+12" and "GND" terminals of MLS-SPU1 board.
Symptom:
Call placed, no message sent to pager.
Possible causes:
"COM" terminal of MLS-SPU1 board not connected, or not properly connected-refer to
drawings in this manual for wiring assistance.
The pager number assigned to the message does not match actual pager number. The pager
number is the last 2 digits of the capcode which appears on the back of the pager. (see
MESSAGE PROGRAMMING).
The first 5 digits of the pager capcode are not "08782". All pages sent by this version of
Alpha-Page are programmed to be sent to pager capcodes beginning with "08782". If MLS
did not provide your pagers, make sure the pagers are programmed correctly.
Programming keyboard is plugged in, when keyboard is plugged in, system is in programming
mode and is not monitoring for calls-when finished programming, unplug keyboard.
TX125-ENC transmitter is too far away from pagers-relocate transmitter centrally in building
(see drawing C091905-1).
TX125-ENC transmitter isn't properly connected to the MLS-SPU1, refer to "Connecting
TX125-ENC Transmitter" section of this manual and drawing C091905-1.
Symptom:
No transmitter CTS" appears on the LCD screen.
Possible causes:
At power-up/reset, Alpha-Page does a self-test of the MLS-485's, Alpha-Page does not see the
MLS-485's. Refer to "Connecting TX125-ENC Transmitter" section of this manual and
drawing C091905-1.
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