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Troubleshooting
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Tango Series Audio Controllers
Troubleshooting
Overview
Power Connections
Tracking down problems that are power related are somewhat easy because the unit either powers up or it
doesn’t. If it does not, there are several things to check.
1. Check to make sure you are attached to a functioning live electrical circuit. If the branch circuit is dead
check the breaker or there may be a light switch controlling the power to the outlet. If it’s on a switched
circuit try to obtain power elsewhere.
2. Ensure that both ends of each power cord are firmly seated in all of the source components.
3. If you’re plugged into power strips, check them for operation as well. Be aware these often have mini-
breakers on them and you should check to ensure that power is functioning in EACH outlet.
It is not uncommon for the inexpensive power strips to fail at one plug-in but not the others.
4. There is a power switch located at the rear of the Controller, check to see that it is in the ON or (1)
position.
5. There is a fuse beside the power switch at the back of the Controller. Remove the fuse and inspect it to see
that it is intact. If you have an ohm meter, test for continuity across the fuse (sometimes they look good,
but they’re really broken near one of the ends). If you are using a power bar they often have mini-breakers
on them, and you should check to ensure that all is well. The fuse in the rear of the Unit is a T8AL250v.
Source Unit Connections
Problems in source cabling can often be traced to symptoms where the source cannot be heard in any zone and/
or when the source doesn’t seem to respond to keypad commands.
1. Ensure that the source component’s LINE OUT connections are connected to the Controller’s LINE IN
connections for the correct device. These can sometimes be mismatched.
2. Take a look at the source component to ensure that MUTE functions have not accidentally been activated.
Symptom Possible Causes Section
Everything is dead Power Power
All keypads are dead Power-cabling between MRC and keypad incorrect. Power
(No lights) Keypad connections reversed. Keypad cabling
Some keypads ok, some dead. Cabling between MRC & keypad shorted. Keypad
connections reversed. Defective keypad. Defective
cable.
Keypad Cabling.
Restart system.
Sources don’t work manually or
automatically
Power Power
Sources and keypads work but
no sound in zone.
Speakers not connected. Problem between keypad and
speakers. Problem with speakers. Volume too low.
Keypad Cabling
Source Cabling
Sources and keypads work but
no sound in zone.
RCA cables from source inserted into the source outputs. Source Cabling
Sources work manually but key-
pads don’t control device.
Device programming incomplete. Infrared emitter lead
missing. Infrared emitter lead connected to wrong device.
Programming.
Source cabling.
Restart system.
Sources power off when
selected.
Program error in ON/ OFF function. Programming
Sources don’t start playing when
selected.
Program error in device select function. Programming