ZETRON 15P, Руководство по эксплуатации

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Section 6. Repair
6-3
DTMF Output Test
While the DTMF tone pairs are generated by a different source than the rest of the analog
paging signals, they come out through the same final audio stages as the other analog signals
and their level is adjusted using the same control, R26. If the Audio test has been done
correctly, it is very likely that you will never need to test the DTMF tone pairs
independently. However, if you do need to fine tune the DTMF performance, this test makes
that possible.
The DTMF test mode is entered by first removing power from the encoder, and then holding
down the ENTER key while re-applying power. When you hear the DTMF tone, release the
ENTER key. The key pad is now live. As you press the keys, the encoder will display the
digit and send out the DTMF tone pair. All sixteen pairs are supported.
Press the CLEAR key to exit this test and return to the normal operating mode.
FAULT IDENTIFICATION
Listed below are some possible problems and their causes to assist in troubleshooting faults:
PROBLEM POSSIBLE CAUSE(S)
No display on power up F1, Power supply, wiring of the power supply.
Error message "Errx" Refer to Self-Test subsection above.
Only some pagers work Check the actual capcode or reed frequencies of the pagers that
do not work. Most problems are due to incorrect capcode entry.
Talk time doesn't work The talk parameter has to be enabled within the format
programming for each leading digit that is to use voice. The talk
time has to also be set to more than 0 seconds in system
programming.
Can't exit program mode The CLEAR key will only exit program mode when it is
allowable to do so. This is to avoid conflicts or incomplete
programming. Press the ENTER key repeatedly until the display
reads "diGt=0", then press the CLEAR key.