Chuck Williams Fan Mod, WOW!! - Page 7 - AVS Forum
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post #181 of 231 Old 04-18-2002, 03:16 PM
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Please email me a mod plan for a Sony 1270 if at all possible.

Thanks,
Ken
Ken_Pitzner@mail.utexas.edu
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post #182 of 231 Old 06-11-2002, 02:02 PM
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Could someone send me the schematic to mod an NEC 9PG?

Thanks
Keith

keithm no@spam casco.net
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post #183 of 231 Old 06-26-2002, 01:20 PM
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Has or can this fan mod be done to a Barco 1208s? I have a short ceiling(7') and an"8" riser which puts my head right under the projector, making it difficult to hear movie dialog during quiet scenes. I don't think I have enough room for a hush box. Also, how do I go about getting the supplies and directions for the modification? Thanks.
Gary
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post #184 of 231 Old 06-27-2002, 04:35 AM
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You wanna know the funny part? When I installed my NEC, the first thing I noticed was how quiet it was compared to the ECP it replaced. When I installed the ECP, I was floored by how quiet it was compared to the bulb PJ it replaced. A stock 9PG is supposed to emit 45 DB and the ECP 55 DB. I sold the bulb PJ so I don't have the manual for it but it was probably about 65 DB. Not exactly a cost effective way to do it, but I'm happy...

Chip S.

Current owner of the last/best AmPro on the planet. The mighty 4600HD, and it's still running...better than Barco's, especially southern ones.
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post #185 of 231 Old 06-27-2002, 05:38 AM - Thread Starter
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From What I understand it can be. You should contact Chuck, He'll be happy to send a board or the specs on it

Good Luck
JohnBoy

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post #186 of 231 Old 06-27-2002, 01:57 PM
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Anyone with NEC PG9200 Fan Mod plan? Please send me a copy to jasonsjwou@yahoo.com

plz plz plz

tks tks tks

Jason
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post #187 of 231 Old 06-27-2002, 09:11 PM
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Johnboy,
Thanks, I just sent an e-mail to Chuck.
Gary
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post #188 of 231 Old 06-28-2002, 08:28 AM
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Chuck just sent me the schematic for the NEC PG mod. Thank-you Chuck.
Has anyone actually done this to a Barco? What results did you have and do you have any pointers?
Gary
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post #189 of 231 Old 08-22-2002, 06:14 AM
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Could someone please send me the 1272 mod. My email is kaanage@hotmail.com

Thanks
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post #190 of 231 Old 08-22-2002, 01:35 PM
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Can someone send me the 1272 directions as well?

jackswearhart@yahoo.com

Thanks!!!

Jack
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post #191 of 231 Old 08-27-2002, 06:53 AM
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Quote:
Originally posted by kaanage
Could someone please send me the 1272 mod. My email is kaanage@hotmail.com

Thanks
Anyone? Please?
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post #192 of 231 Old 08-27-2002, 05:08 PM
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Seeing there is more that one request and guessing that Chuck won't mind, here is a link to a .pdf of original fan mod schematic

You will need to unzip the file and view it with Adobe Acrobat.

Jerry
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post #193 of 231 Old 12-01-2002, 03:03 AM
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UP!

:)
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post #194 of 231 Old 12-01-2002, 10:24 AM
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Could someone e-mail me the mod for a 135LC to
energeezer1@hotmail.com
Thanks
Steve
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post #195 of 231 Old 01-20-2003, 10:10 AM
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I'm interested in the updated schematic as well. If anyone has it, I'd sure appreciate a copy at danbeggs@ceg.dyndns.org.

Are the PCB's available anywhere? I'd much rather go that route if it's an option.

Thanks,
Dan
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post #196 of 231 Old 01-20-2003, 01:50 PM
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Is there a reliable fan mod for the AmPro 4600?

Chris

Knowledge is based on facts which are true until proven false. Truth is based on opinion and can't be proven, or disproven at all...
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post #197 of 231 Old 01-22-2003, 02:23 PM
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Well? Doesn't anyone have any info on the updated schematic or the pcb?

Should I just break out the BFH to quieten my 1272 down? :D

Any pointers or info would really be appreciated.
Dan
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post #198 of 231 Old 01-22-2003, 03:30 PM
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Did you email Chuck?
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post #199 of 231 Old 01-22-2003, 08:00 PM
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I have a barco 808 and I know the fans are speed controlled would this effect this circuit in any way presumably both the internal projectors speed control and this one may conflict?

I have the service manuaul so I will check the internal speed circuit perhaps I coul modify that directly.

Cheers Rick

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post #200 of 231 Old 01-22-2003, 09:52 PM
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Quote:
Originally posted by BizarroTerl
Did you email Chuck?
Yes I did, several days ago. :) I understand he can be pretty busy at times, I was just thinking surely someone else had purchased the pcb if they had ever been produced.

dan
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post #201 of 231 Old 01-23-2003, 05:14 AM
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Here is the updated schematic I got from Chuck about a month and a half ago. It is for a Sony 12XX so I don't know if it is the same for other projetors or not but should work for the Sony's. It's a PDF file.
Pete
If the attachment doesn't work send me an e-mail at
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post #202 of 231 Old 01-23-2003, 05:19 AM
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O.k. it looks like the attachment didn't work. So I am going to send it out to you all through the e-mails you have provided.
Pete
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post #203 of 231 Old 01-23-2003, 05:44 AM
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PeteC, please, send to me to:
jesper_backman@se.ibm.com

Jesper
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post #204 of 231 Old 01-23-2003, 07:37 AM
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Chuck,

what voltage are the fans supposed to run at when using you circuit. I tried building the circuit (from http://www.snaggs.com/projector/disp...&pagetitle=NEC) in a program called crocodile technology.

The timer circuit worked alright and switched the relay for about a second, but when I measured the voltage across where the fan/s would be the voltage came out as 1.39v (15v with the initial relay switch), which to me seems quite low, but it could just be the components available in the software.

Also, is there a component list anyway giving the specs on all the items required, i.e. cap types, etc.

Chris.
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post #205 of 231 Old 01-23-2003, 03:47 PM
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1.39v is not going to cut it. Output voltage is a metered by the zener diode value. Seems like the original design called for a 6.1v, but I was concerned that would slow the fans too much, so I went with a 9.1v.

This is what I had for a parts list. Use at your own risk.
(1) 100 resistor
(1) 470 resistor
(1) 1K resistor
(1) 12K resistor
(1) 56K resistor
(1) 1 N4001 diode
(1) 9.1 volt zener diode
(1) .1 uf ceramic capacitor
(1) 4.7uf electrolytic capacitor
(1) 100 uf electrolytic capacitor
(1) 555 timer lC
(1) 12 volt relay
(1) 7805 voltage regulator
(1) 2N2222 NPN transistor
(1) 2N2955 transistor with heat sink

Randy
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post #206 of 231 Old 01-24-2003, 01:47 AM
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Oops I put the zener diode in the wrong way round. Switched it and now gives out about 9.37v, which sounds a lot more healthy.

Did anyone test their circuit before installing it in their projector, i.e. with a spare fan or removing the fan from the proj and testing externally.

Chris.
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post #207 of 231 Old 01-24-2003, 06:01 AM
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Chris,

Last year when I installed the mod in a 1272, I connected 1 fan to check it out. You almost need to test this in the pj because part of what you are checking is whether the fan sense circuit is happy with the lower voltage. One thing I ran into was that some sense circuits needed more voltage to not execute a shutdown.

I am about to build the mod for an NEC XG. Which projector are you working on?

Jerry
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post #208 of 231 Old 01-24-2003, 06:40 AM
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Hi Jerry,

its a NEC 6PG Xtra. I've had it for about 6 months now and my seating position is below the projector, so I am getting annoyed with the noise now, but its still a lot quieter than my old LCD proj.

Chris
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post #209 of 231 Old 02-02-2003, 04:43 PM
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Chuck,

could you (or someone else who can) send me the instructions for the fan mod of the NEC XG110LC?

my address is davidlarkins@chartertn.net

Thanks a lot... I'm ready for some quiet!

David

Regards,
David

My Home Theater
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post #210 of 231 Old 02-03-2003, 07:09 AM
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David,
YGM. Chuck is on a vacation, the lucky guy. Doug
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