Symetrix 528 - Troubleshooting Guide; Troubleshooting Table

www.SteamPoweredRadio.Com
I
6. Troubleshooting Guide I
Make the following tests one at a time to isolate a problem you think may be caused by
the 528 (or any other unit).
1. Make sure the unit is plugged in, and the pilot LED is lighted.
2. Bypass the device in question by directly connecting the cable feeding the input to
the cable feeding the output (with a double female adapter). Listen to the system with
this direct connection in place. If signal passes through this direct connection, but not
through the unit, the trouble is with the unit.
3. Check INPUT, OUTPUT, SIDECHAIN and patching wires and connectors carefully. MOST
MALFUNCTIONS ARE WIRE OR CONNECTOR RELATED.
4. Plug headphones directly into outputs to see if signal is present. If you cannot hear
I
I
I
I
the signal at the unit's output, work your way back through the chain until you can hear I
it. (If you get all the way back to the input without hearing anything, get competent
help.)
5. BB SURE ALL JUMPERS ARB IN PLACE ON THE REAR PANEL TERMINAL STRIPS. THE I
SIGNAL PATH MUST BB COMPLETED. SEE "NOTE" ON PAGE 8.
6.1 Troubleshooting Table
Problem
No expand/gate action
No compreaa/limit action
Low or diatorted output
Diatortion or crackling
aound at output
30
What to check - what to do
1. Is the CHANNEL IN switch depressed?
2. Is there something in the sidechain that ' s
not turned on?
3. Is there a 2-conductor (mono) plug in the
sidechain?
4. Is the EXPANDER THRESHOLD set low
enough for the present signal level?
1. Is the CHANNEL IN switch depressed?
I
I
I
I
2. Is there something in the sidechain that's I
not turned on?
3. Is the COMP THRESHOLD set low enough
for the present signal level?
1. Be sure gear patched into the sidechain
is turned on.
2. Check INPUT, OUTPUT and SIDECHAIN
connectors for shorts.
3. Is something patched into the signal
chain before or after the 528?
4. Is the 528 powered up?
1. Check level and signal at input: Is it too
high? Is it distorted?
I
I
I
I
I
I