Problem solving, Troubleshooting – Crestron electronic Four-Way Coupler SRD-CPL-4 User Manual
Page 9

Crestron SRD-CPL-4 Four-Way
Coupler
Problem Solving
Troubleshooting
The table after this paragraph provides corrective action for possible 
trouble situations. If further assistance is required, please contact a 
Crestron customer service representative. 
SRD-CPL-4 Installation Troubleshooting
TROUBLE
POSSIBLE
CAUSES
CORRECTIVE ACTION
With radio on and all 
antenna cables connected 
at the radio, check for 4 - 
7 VDC at antenna end of 
cable. 
No signal 
reception. Radio 
display shows: 
“Antenna 
Disconnected”, or 
“Acquiring 
Signal” 
 
 
Short circuits 
or 
discontinuities 
With radio on and all 
antenna cables connected 
at the radio, check for AC 
voltage at antenna end of 
cable; should be < 1 VAC. 
If AC voltage is found, 
check for ground loops. 
Ensure proper cable type 
and length(s) per the 
illustration on page 2. 
Ensure amplifiers are 
oriented properly with the 
output (marked with an 
arrow labeled Radio) 
oriented towards the radio. 
“Check Antenna” 
or “No Signal” 
Antenna is 
connected 
properly but 
signal is too 
weak for 
reception. 
Refer to the instructions 
supplied with the antenna 
to ensure the antenna is 
pointed accurately. 
(Continued on following page)
Installation Guide – DOC. 6725A
Four-Way Coupler: SRD-CPL-4
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