Trigon Electronics Telalarm HF-2BB, Инструкция по установке и эксплуатации

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Page 9
HF-2BB
NO DIAL TONE
1. Check input power at unit. Should be 12 VAC.
2. Check that unit is properly grounded to a good
Earth ground.
3. Current starved. Increase AC input wire size.
4. Remove power, wait 5 seconds, restore power.
Check for dial tone.
5. Check for phone line. Should be 48-52 VDC
across phone line terminals (on hook).
6. Check VOLUME adjustment on PC board.
7. Check “SPKR” plug on PC board. Make sure
speaker is properly plugged in (Handsfree
units).
8. Verify that contacts and wires are clean and
tight.
CANNOT PROGRAM
1. Incorrect/lost program code.
2. Not entering '
✽
' before program code.
3. Try ‘NO DIAL TONE’ troubleshooting
procedures.
4. Keypad damaged. Check for vandalism.
5. Check that Program Prom/Microprocessor is
fully seated.
6. Unit is in the wrong Operational Mode
TROUBLE SHOOTING GUIDE TROUBLE SHOOTING GUIDE
TROUBLE SHOOTING GUIDE TROUBLE SHOOTING GUIDE
TROUBLE SHOOTING GUIDE
LOSES MEMORY
1. Electrical noise on power line. Install EMI/RFI
filter.
2. Excessive electrical noise from strike. Use low
current strike.
3. Unit transformer shared with another device (i.e.
door strike).
RESIDENT CANNOT ACTIVATE STRIKE/GATE
1. Tenant not pressing correct number on phone.
2. Strike/gate operator not wired correctly.
3. Missing or incorrect power to strike or gate
operator.
4. Current starved. Increase wire size.
5. Tone may be too brief in duration (cordless
phones, etc.).
AC HUM IN SPEAKER
1. Phone wires running in same conduit as AC
power.
2. Unit not properly grounded.
3. Defective microphone.
RESIDENT CANNOT HEAR VISITOR
1. Defective handset/microphone.
2. Person receiving the call answers in too short a
duration to activate the HF-2 (person must speak
a minimum of 2 seconds to be detected).
3. Excessive background noise.