Error Contents :
Power Supply Error
Symptom :
No display
Details :
Condition of occurrence : Normal power is not supplied. 7 segment indicator is defective.
Release condition : Normal power is supplied. 7 segment indicator is normal.
Cause 1 :
Power supply cable installation is defective or open.
p Check following installation and reset the power supply.
(1) Installation of power cable on power supply terminal.
(2) Connection between Power PCB and Terminal.
(3) Connector condition between power PCB and Main PCB.
Error Contents :
Communication Error
Symptom :
Error code does not appear [ . . ]
Communication error occurs at connected equipment side.
Details :
Condition of occurrence : Network connection cable defective. External noise is applied.
Overlapping of Signal Amplifier address setting. System design mistake.
Release condition : Network cable is connected. External noise is removed.
Overlapping of Signal Amplifier has been corrected. System design is normal.
OK
Cause 2 : External noise
OK
Cause 4 : System Design mistake
p Check following items.(Refer to Installation Manual)
(1) Installation location of Terminal Resistor.
(Only 1 location on NS*)
(2) Cable length. (Within 500m maximum on NS*)
(3) Number of units connected
(Up to 64 units maximum on NS*)
(4) Communication cable specification.
(Use specified type.)
(5) Number of Signal Amplifier installed.
(Up to 8 units max. on system)
(6) Network cable shall not be connected in loop.
*NS : Network Segment
OK
Cause 1 :
Network cable installation is defective or open.
p Check Network cable installation.
Cause 3 :
Overlapped address of Signal Amplifier.
p Set up address again which does not overlap on system.
After set up again, reset the power supply.
p Remove external noise around Signal Amplifier or
Network cable. (Keep enough distance)
2. Signal Amplifier (UTR-YRPC)
Cause 2 : Signal Amplifier is defective.
If normal voltage (220V) is applied to power supply
terminal of Signal Amplifier, there is a possibility of defective
PCB. Proceed as follows.
Replace Signal Amplifier.
OK
AC
Trouble shooting 61
Trouble shooting 62
06-67
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