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My power supply board is out on a Q7. Can I get a new power supply board or send this one in?

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Forum.eserviceinfo.com/viewtopic.php?p=68151
www.ocia.net/

Posted on Aug 02, 2010

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Posted on Jan 02, 2017

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SOURCE: my power supply board is out on my Q7 monitor

www.badcaps.net/forum/printthread.php?t=8430

Posted on Aug 02, 2010

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Where can i locate the part number 4F0907279 for Q7 2006 model


Hello Enoch,

The on board power supply control unit J519 is
installed in the cockpit at the front left on the
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The on board power supply control unit 2 is, as shown in
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More info and component diagrams here:
http://www.volkspage.net/technik/ssp/ssp/SSP_364.pdf ONBOARD POWER SUPPLY CONTROL MODULE AUDI A6 Q7 S6 C6 4F0907279

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My polaroid tv model tdx-03211c turns on but no picture and led on back of tv blinks constantly


Hello Edwin Ortiz---My tv had the red blinking light on the power board and i found a tiny 3amp subminiture fuse listed as F2 on the printed board. It fooled me because it did not look like any fuse i've ever seen. Anyhow the fuse was open and the problem was the two transistor listed as Q6 and Q7 on the power board.The transistors are a brand from fairchild with a part # FQPF9N50CF . They cost $1.60 each and i got them from Mouser Electronics out of texas (www.mouser.com )

On power board check F2 minifuse and transistors Q6 and Q7---make sure that you use so heat sink compound on the new transistors or they wont last long. You can reach me at justride@yahoo.com for more detail on how to fix. good luck--jim--

Sep 28, 2011 | Polaroid TDX-03211C LCD TV

1 Answer

My power supply board is out on my Q7 monitor


www.badcaps.net/forum/printthread.php?t=8430

Aug 02, 2010 | Optiquest Computers & Internet

5 Answers

ViewSonic N3250W Television with FSP212-3F01.dead needs VOODOO


I am working on the same power supply right now, my has a bunch of bad caps that I already replaced but I did not try to turn it on yet becuase I see that RS1 and RS8 are missing, some one had try to fix this power supply. Can you please tell me the value of these two resistors? Please see my pictures at http://s807.photobucket.com/home/budm/allalbums
Your problem sound like the logic board problem, I can tell you what you should have if I can find out if these two resistors were left out from the factory or some had removed them. I fixed the same power supply for the N2652 but I did not take the pictures of the board, I wish I did.3a99fcd.jpg

Jun 17, 2010 | ViewSonic N3251w 32 in. LCD HDTV

1 Answer

No video/ does not power on


Check the power supply, you must have at least the +5vdc standby voltage at the power output connector, look for bad caps withleaking/bulging top, you may also have shotrted out Q7 and ZD4 in the +5vdc standby power supply section. Hopefully you do not have failed inverter bd. too. The power supply module and the inverter board are common parts that failed.
http://s807.photobucket.com/albums/yy352/budm/Protron%20PLTV%203250/

Power supply: http://www.google.com/products?rlz=1T4GGIH_enUS282US283&q=pltv+3250+power+supply&um=1&ie=UTF-8&ei=9lIDTL7XO4fcM7HA-Ds&sa=X&oi=product_result_group&ct=title&resnum=1&ved=0CCgQrQQwAA

May 14, 2010 | Protron PLTV3250 32 in. LCD Television

1 Answer

Hi, Q7 in the power supply


the pin at one side is the base, et the other side top is colector and bottom emiter, looking the transistor face flat down.

Hector

Apr 01, 2010 | ViewSonic N3250W Television

1 Answer

No picture on monitor


The Q7 has a tendency to burn up transistors and a high voltage capacitor on the one half of the inverter board which is part of the power board.
I have repaired 1/2 dozen of these with that problem.
Only way to tell for sure would be to open it up and look at it.
If you can do that and send me a picture to bammbamm@ptd.net, I may be able to confirm this.
The other possible problem could be a bad bulb, but since it is fairly new ? that is probably not the issue.
Fran

Jul 20, 2009 | ViewSonic Optiquest Q7b Flat panel TFT 17"...

7 Answers

Viewsonic N3250W won't power on


Got the same problem for a N3250. I'm not an electronic engineer and will attempt to fix my TV. Therefore I got the FSP2123F02 ($49.75)and now they have a harness 4WT0062302GP ($8.90) that will do a quick plug and play and will avoid any solder of the pins. That is my understanding can anyone corroborate this procedure. By the way I got both products from electronica-usa.com
I repaired it on June 28th with the lsit of parts above
More deatil information here (of the problem) http://forum.eserviceinfo.com/viewtopic.php?p=149367#149367

List of photos
A) new Power supply on TV 47afd61.jpg
B) new Power supply and new 12 pin connector (plug and play)
f322961.jpg
C) old board
d8619b4.jpg
D) TV picture in HD
e702b63.jpg

Jan 15, 2008 | ViewSonic N3250W Television

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