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Zapco Z220 no sound?
Zapco Z220 no sound?
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Old 21st July 2009, 03:47 AM   #11
fongman is offline fongman  United States
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I'm a little confuse but, i'd test the top left and right pin. tested okay. next the right top and bottom right. and around and found none shorted.
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Old 21st July 2009, 02:22 PM   #12
tsmith1315 is offline tsmith1315  United States
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Quote:
Amp power up fine. I measure the amp rca and got only .500v. I know i should be getting 12v, but when i apply ground to it the amp goes into overload or protection.
This statement is confusing. Could you clarify?
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Old 21st July 2009, 03:26 PM   #13
fongman is offline fongman  United States
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The amp turns on fine without any voltage draw. I notice that the input on the RCA have low ground when the amp is trun on. I apply or put gound to it and the amp would go into overload. After 10 sec it would come out of overload. Still no sound. Thanks i hope you can help?
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Old 21st July 2009, 07:11 PM   #14
tsmith1315 is offline tsmith1315  United States
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The Z220 has balanced differential inputs, so the RCA shields aren't grounded...
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Old 21st July 2009, 08:14 PM   #15
fongman is offline fongman  United States
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Thanks, do you think it will be an easy fix?
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Old 12th August 2009, 05:52 PM   #16
fongman is offline fongman  United States
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Hi guys, i just want to update that the amp was fixed. I found out that the input RCA are bad. I resolder both side and now the amp plays fine. I want to thank those of you who help me in anyway.

PS
Perry thanks for all you time and support
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