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» Termpro Audio Forum » Component Specific Topics » Signal Processors » Zapco Seq Board help

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Author Topic: Zapco Seq Board help
wizzy01
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whats up AF, i got an zapco board, and when i hook it up to my system, i get a feedback/hiss/whining noise i know it could be a ground problem, but can you give me some pointers on where to start..

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1977 delta 88
avh-p4900dvd
6-pioneer mids & highs
pzi-1400.4
pzi-1800.4
4-diamond audio D315's
crunch gp3000d-pro
Posts: 61 | From: cali | Registered: Jun 2008  |  IP: Logged | Report this post to a Moderator
D-Bass
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the 3 most common causes
1)bad ground
2)bad rca's or placement of them
3)pioneer headunit
Posts: 5494 | From: Columbus, OH - formerly FL | Registered: Oct 2003  |  IP: Logged | Report this post to a Moderator
wizzy01
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thanks again D-bass, it might be a bad ground on the
seq maybe hook the ground to the HU chassis or maybe ground the rca's...

--------------------
1977 delta 88
avh-p4900dvd
6-pioneer mids & highs
pzi-1400.4
pzi-1800.4
4-diamond audio D315's
crunch gp3000d-pro
Posts: 61 | From: cali | Registered: Jun 2008  |  IP: Logged | Report this post to a Moderator
D-Bass
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you have a pioneer deck, right?
try this
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Posts: 5494 | From: Columbus, OH - formerly FL | Registered: Oct 2003  |  IP: Logged | Report this post to a Moderator
tomtomjr
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A couple of things... Flip the 3 way switch down. Adjust from there. When using the SEQ/PEQ it has a lot more gain with the main switch up, but use it down, and turn the gains up on the amp, crossover, ect. 2nd--- Did you tune the 2 trimmers yet (small holes up towards the top left corner) ? Maybe you have them up too high. 3rd--- Check to make sure the ground hooked up on the RCA's. Sometimes when people make the RCA's to the plug, they forget to hook up the ground to them. SEQ/PEQ plugs are handmade by the customer/installer. They do not come with RCA's on them. The cust/inst wires the RCA's on.
If you need more info on the SEQ/PEQ, let me know. I have been repairing them and using them for 20+ years now. Still have 6 or 7. Excellent EQ...

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Posts: 38 | From: Dallas Texas | Registered: Oct 2008  |  IP: Logged | Report this post to a Moderator
jefft08
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I have a old school board lost the plug wondering where i can get a new plug
Posts: 2 | From: port orchard wa | Registered: Jun 2009  |  IP: Logged | Report this post to a Moderator
jefft08
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Need to know where i can get a plug for my old school board
Posts: 2 | From: port orchard wa | Registered: Jun 2009  |  IP: Logged | Report this post to a Moderator
tomtomjr
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Zapco still sells them. Occasionally you can get them on Ebay for $50 or so. Price from a Zapco dealer is about $89 retail.

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Posts: 38 | From: Dallas Texas | Registered: Oct 2008  |  IP: Logged | Report this post to a Moderator
   

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