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mutantaction
Joined: 06 Sep 2012
Posts: 24
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| Posted: Wed Sep 12, 2012 12:03 pm Post subject: Marquee focus module, 100uF bi-polar caps? |
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Hi!
Quick question:)
On the Marquee focus module there's a 100uF 25V+ cap on each RGB line...this is bi-polar. However,
the printing on the PCB shows a + sign...can these be swapped for standard polarized caps?
Thanks!!
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Nashou66
Joined: 12 Jan 2007
Posts: 16171
Location: West Seneca NY
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| Posted: Wed Sep 12, 2012 12:21 pm Post subject: Re: Marquee focus module, 100uF bi-polar caps? |
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| mutantaction wrote: | Hi!
Quick question:)
On the Marquee focus module there's a 100uF 25V+ cap on each RGB line...this is bi-polar. However,
the printing on the PCB shows a + sign...can these be swapped for standard polarized caps?
Thanks!! |
I never noticed that on the PCB, i would definitely stay with BP caps.
Nashou
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barclay66
Joined: 27 Jun 2011
Posts: 1304
Location: Germany
TV/Projector: Marquee 9500 Ultra
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| Posted: Wed Sep 12, 2012 2:28 pm Post subject: Re: Marquee focus module, 100uF bi-polar caps? |
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Hi,
These caps are connected to the Dynamic Focus Amplifier output and its output signal can swing between +24V to -24V. Therefore bipolars are mandatory. Using polarized caps would only be possible if those had a much higher voltage rating which would include a higher tolerance versus wrong polarity...
Regards,
barclay66
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mutantaction
Joined: 06 Sep 2012
Posts: 24
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| Posted: Wed Sep 12, 2012 3:48 pm Post subject: |
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Ok, thanks guys! Just ordered some Rubycon 100uF 63V bi-polar!
Thanks for the advice;)
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