True to the Music
Radial Engineering Ltd. Workhorse User Guide
14
TROUBLE SHOOTING
1. No Power:
• Check the power 5-pin XLR connection on the rear panel.
• Ensure the power supply is plugged into a working outlet.
2. No sound at individual XLR outputs outputs:
• Check the front panel LED Power indicators and ensure the
Workhorse is powered up.
• Check that all modules are seated properly and secured.
• Check audio cable connecting to and from the Workhorse.
• If you are using the mixer section, ensure the it is setup
correctly and the channel is on. Also check the level and pan
settings.
• Check that the eight FEED switches are set to the proper
setting for your setup.
3. No sound at mixer outputs:
• Ensure the correct mixer channels are active and their LED
indicators are illuminated.
• Check that the level controls are set to a nominal level and the
pan controls are positioned at the center mark.
• Ensure the main and monitor master level controls are set to a
nominal level and that the ‘ON” switch is depressed.
• If you are using the main outputs check the insert jack and any
equipment connected there.
3. A loud humming noise is audible in the system:
• Check the source device for proper connections and settings.
• If the module(s) you are working with allow it you can try lifting
the signal ground.
• Plug all your equipment into the same power source to
minimize ground loops.
• Use the Workhorse Main outputs. These are transformer
isolated to eliminate hum and buzz caused by ground loops.
4. Some modules are louder than others:
• Use the mixer section to amplify a low output module and bring
it up to par with other modules.
5. Sound is distorted when using the Summing Mixer input:
• Although the 25-pin D-Sub input for the summing mixer is
based on the Tascam™ analog audio pin-out it unbalances
the signal by grounding the cold (-) lead. Most devices with
a balanced 25-pin D-Sub output will work fi ne driving the
unbalanced summing mixer input. However, in the remote
chance that the source device creates distortion with this
arrangement you can solve the issue with a custom 25-pin
D-Sub to XLRF cable wherein the XLRs pin-3 (cold) is left
unconnected inside the shell.
6. Sound from one module is appearing on different output:
• Check the FEED switch on the rear panel. It may be mistakenly
engage causing the signal from one module to be routed to the
next.
