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Old 14th July 2012, 08:57 PM   #1
S Merlington is offline S Merlington  United States
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Default Directed D2400

Amp powers up relays kick on but no output any suggestions??
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Old 14th July 2012, 08:59 PM   #2
Perry Babin is offline Perry Babin  United States
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Do you have positive and negative rail voltage?

Do you have positive and negative regulated voltage on the power supply pins of the op-amps?

Do you have a scope?
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Old 15th July 2012, 04:16 AM   #3
S Merlington is offline S Merlington  United States
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I have Positive and Negative rail voltges

I have both postive and negative regulated voltages

Yes i have a Scope
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Old 15th July 2012, 11:02 PM   #4
Perry Babin is offline Perry Babin  United States
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Do you have a rail to rail square wave on all of the output transistors?
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