Controling fans in hushbox via 12V trigger - AVS Forum | Home Theater Discussions And Reviews
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post #1 of 8 Old 10-17-2017, 04:08 PM - Thread Starter
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Controling fans in hushbox via 12V trigger

Hi guys,

could use some help with correctly wiring a relay. I'm building a hush/dustbox for my projector and want the cooling fans to go on & off with the PJ using the 12V trigger output.

I was advised to get this relay from eBay: http://www.ebay.co.uk/itm/Dc-12V-4-C...o/251614581114

Problem is, I'm not really tech-savvy and it came with no form of instructions whatsoever. I have an idea of how I need to wire it, but I'm not sure it is correct and I really don't want to fry anything. Could anyone please have a look at my awful drawing below and tell me if I'm on the right track, and if not, correct me? Thank you!
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My Home Theater setup:
Picture:
Benq W2000 (HT3050) // 130" DIY AT-screen // Sony UHP-H1 // PS3
Sound: Pioneer VSX-AX2AV (7.1) // Infinity Beta 50/C360/ES250, Mission 737R, Dynavoice Thunder T-12 // Sinus Live BassPump III
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post #2 of 8 Old 10-17-2017, 07:26 PM
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It looks wired correctly. Ad states either high or low level on in1 so not sure what the four jumpers are on the left are, maybe to switch between high or low or just enable disable?
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post #3 of 8 Old 10-17-2017, 11:47 PM - Thread Starter
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Rekbones, thanks you very much!!! The jumpers do switch between High or Low (although I'm not sure what that means, exactly, or how it should be set).

I also had someone else take a look at the drawing and he suggested simplifying the wiring by doing like below, difference being the relay do not receive constant 12V DC, just the power from the trigger output when the projector is on. Would that work??
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My Home Theater setup:
Picture:
Benq W2000 (HT3050) // 130" DIY AT-screen // Sony UHP-H1 // PS3
Sound: Pioneer VSX-AX2AV (7.1) // Infinity Beta 50/C360/ES250, Mission 737R, Dynavoice Thunder T-12 // Sinus Live BassPump III
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post #4 of 8 Old 10-18-2017, 08:05 AM
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Quote:
Originally Posted by kutzon View Post
Rekbones, thanks you very much!!! The jumpers do switch between High or Low (although I'm not sure what that means, exactly, or how it should be set).

I also had someone else take a look at the drawing and he suggested simplifying the wiring by doing like below, difference being the relay do not receive constant 12V DC, just the power from the trigger output when the projector is on. Would that work??
No do not wire it this way, the whole point of the relay is to take all of the load off of the trigger output. Wire it the way you first had it.

"Smart enough to know better, to old to care" ------ Dedicated Bat Cave Home Theater, JVC RS49U/Mitsubishi HC7900DW Projector, 110" 16:9 Jamestown screen with variable power masking for CIW 2.50:1 to 16:9, Marantz 7009 with 7.1.4 Atmos with Ohm mains,3 DIY Subs (2 15" (1 ported, 1 sealed and a 12" 4th order bandpass), 1 DIY butt kicker, Custom Built HTPC, 18TB DroboFS NAS
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post #5 of 8 Old 10-18-2017, 08:16 AM - Thread Starter
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Quote:
Originally Posted by rekbones View Post
No do not wire it this way, the whole point of the relay is to take all of the load off of the trigger output. Wire it the way you first had it.
OK, makes perfect sense so will do, thanks a lot!!! Do I need to worry about the jumper? It is set to "High" per default.

My Home Theater setup:
Picture:
Benq W2000 (HT3050) // 130" DIY AT-screen // Sony UHP-H1 // PS3
Sound: Pioneer VSX-AX2AV (7.1) // Infinity Beta 50/C360/ES250, Mission 737R, Dynavoice Thunder T-12 // Sinus Live BassPump III
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post #6 of 8 Old 10-18-2017, 09:46 AM
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Quote:
Originally Posted by kutzon View Post
OK, makes perfect sense so will do, thanks a lot!!! Do I need to worry about the jumper? It is set to "High" per default.
Assuming you have the polarity correct on the trigger output, high should be correct.
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"Smart enough to know better, to old to care" ------ Dedicated Bat Cave Home Theater, JVC RS49U/Mitsubishi HC7900DW Projector, 110" 16:9 Jamestown screen with variable power masking for CIW 2.50:1 to 16:9, Marantz 7009 with 7.1.4 Atmos with Ohm mains,3 DIY Subs (2 15" (1 ported, 1 sealed and a 12" 4th order bandpass), 1 DIY butt kicker, Custom Built HTPC, 18TB DroboFS NAS
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post #7 of 8 Old 10-18-2017, 04:03 PM
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Quote:
Originally Posted by kutzon View Post
Hi guys,

could use some help with correctly wiring a relay. I'm building a hush/dustbox for my projector and want the cooling fans to go on & off with the PJ using the 12V trigger output.

I was advised to get this relay from eBay: http://www.ebay.co.uk/itm/Dc-12V-4-C...o/251614581114

Problem is, I'm not really tech-savvy and it came with no form of instructions whatsoever. I have an idea of how I need to wire it, but I'm not sure it is correct and I really don't want to fry anything. Could anyone please have a look at my awful drawing below and tell me if I'm on the right track, and if not, correct me? Thank you!


This is the one I use on my dust box works beautifully SSR-S25DA
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DIY dust box / hush box / ceiling light... http://imagizer.imageshack.us/v2/640...633/7qBblE.jpg

Last edited by DTI; 10-18-2017 at 04:09 PM.
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post #8 of 8 Old 08-08-2018, 08:23 AM
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Originally Posted by DTI View Post
This is the one I use on my dust box works beautifully SSR-S25DA

Cool Hush Box - Do you have any more info on how you built it?
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