Question about RCA HDLP50W151 50" Rear Projection HDTV

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Hplpw175x7 Do you think it would better for me to just purchase the board and install myself? Afraid to solder and already just pulled a capacitor off board so board may not be good anymore Please see info below: http://cgi.ebay.com/RCA-HD50LPW175-ATC336-Power-Supply-5104_W0QQitemZ360037590461QQihZ023QQcategoryZ61407QQcmdZViewItem

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  • RCA Master
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Thats a good price as long as they guarantee that it works. How were you able to pull a capacitor off without un-soldering it?

Posted on May 30, 2008

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How do you remove the 150 114 120 capacitors hdtv do you just pull them out,do they need to be sodered,i have new ones and i'm not sure how to replace the new ones the tv's green light comes on...


Thanks for asking and trust our experience on Fix ya.
Normally we use a solder wick or special extractor to remove the solder. Sorry to tell you something that may confuse you, but there are several things you need to know before removing the capacitors. As the position of polarity, positive and negative terminals, be careful not damage electronic driving tracks, you should not leave any residual solder on the board. You can do it!, But be careful and calm doing it. I wish you luck, and let me know as it turned out your first job in electronics. Thank you for visiting fix ya!.

Aug 10, 2011 | RCA HD52W59 HDTV Projection Television

1 Answer

Power supply went out (at least I think thats what it is) on my Polaroid FLM-4034B 4-" HD TV, if I buy the new power supply, is it easy to install myself? Will I have to do any soldering? I am not any...


Hi Scott,
Replacing the power supply board is not quite technical, no soldering required. But before an attempt to do so, let stand the unit for 1 hour to drain the main filter electrolytic capacitor. Power supply board is where the power cord directly connected. Pull-out all the cables connected from the existing power supply board and then put in the new board, re-insert the connectors and ensure that it is properly seat-in.
Click this link for the replacement or obtain it from your local Polaroid Service Centers.
Hope I helped you.
Thanks for using Fixya.
Jdvillanueva

Jun 05, 2011 | Polaroid FLM-4034B 40 in. LCD HDTV

1 Answer

There is suddenly no picture. Just a black screen . Everything else works


There are several bad capacitors in the signal board. I can not tell you off hand the values. There are about 12 or 15 bad caps. I think in the range of 10 or 16 volts at 10 Mfs, 25 volts at 33Mfs and 16 volts at 440Mfs. If you can manage your patience and pull the bad capacitors very carefully, it can repair this TV. You will have to purchase an ESR meter to locate the bad caps. The power supply would have two bad caps. It has been sometime since I have repaired this model. I do know for sure a good supply of capacitors in your possession will repair this unit. I must caution you...to unsolder and pull these capacitors out is a very delicate and dedicated procedure. You can not tear traces from this board or you face destruction. Use a 25 watt solder pen. Purchase one at a dedicated electronic shop. Do not buy the solder pen that has a screw near the tip. These are unregulated solder pens and will make soldering and unsoldering a difficult job. Be sure to purchase solder wick to remove solder from the components, and a tube of solder to replace capacitors. Thanks for asking and show a few hands of support!

Feb 22, 2011 | Polaroid TDA-03211C 32 in. LCD HDTV

2 Answers

One of my speakers has a constant hum and an intermittent crackle/hiss while music playing. Please help!


Swap speakers from the output of the receiver or amplifier. If you hear it from the same speaker, then the speaker is bad.

Nov 10, 2010 | M-Audio BX5a Speaker

1 Answer

I have a Mitsubishi WD-62725 with the ''blinking green light of death.'' I got this T.V. for free so I figured might as well try to repair it myself (and can I just say did Mitsubishi really have to make...


It's definitely the one causing the problem but I suggest you also replace or resolder the 4 capacitors on the DM board to make the job at once. Just make a note on the polarity markings of the capacitors and the board. If there's no indicated polarity markings on the board then nevermind. Here's what you need to do the job:
  1. Soldering iron
  2. Desoldering pump
  3. Soldering lead
Steps:
  1. Heat up the soldering iron
  2. Melt the lead on the board with the soldering iron and use the desoldering pump to remove it and loosen the terminals of the capacitor.
  3. Remove and replace the capacitors one at a time to avoid confusion.
  4. Make sure to make a good solder. A good solder is volcano-shaped.
  5. Cut any excess lead terminals.
  6. Make sure there's no stray leads that might cause short circuit on the board.
  7. Check the terminals of the newly installed capacitors for any short circuit.
Tip:
The board experiences vibrations during the operation of the unit. These vibrations can result to broken solders as the time passes by. Before re-installing the board, check it for any loose or broken solders and resolder as a preventive measure. A magnifier will surely help.

Aug 06, 2009 | Televison & Video

2 Answers

Samsung 50" plasma tv with no picture but has sound.


I just had a similar issue with my 46" Samsung LCD and fixed it myself for $5.11! I realize we have different tvs, but I bet it is the same issue ... crapped out capacitors.

I researched the problem online and most places, like samsung's site, referred me to call a repairman and called for the whole control panel or power supply to be replaced for anywhere between $400-$1000. I was like ... "screw that" ... I refuse to put in a fautly part in the place of a faulty part. So I continued to research.

That's when I stumbled on youtube. There are many how to videos on how to tackle this daunting task. I read that the issue was more than likely faulty capacitors and there is a very easy way to tell if it is in fact the capacitors that are blown. instead of having a flat top, faulty capacitors are crowned or even ruptured! When I opened up my TV I saw 3 blown capacitors!

So I bought 3 new capacitors all with the same uf and higher volts ... I think all three of my capacitors were 1000 uf and 25 volts. I kept the uf the same (recommended) and raised the voltage to 35 volts. It doesn't mean more volts, it just means it COULD handle more volts if it had to (which was the problem those cheap Samsung bastards screwed up on). This is a very common problem with Samsung TVs.

Anyway, I have never soldered before, but I did it. I warmed up the solder on the bad capacitors and removed them them slid thenew ones in and soldered them in and popped everything back together ... and PRESTO .... the damn thing works better than ever!

3 capacitors= $5.11
1 solder gun and solder= about $18
fixing an incredibly intimidating TV by yourself= PRICELESS!


Seriously ... don't be afraid to F up ... check it out on youtube and other place and save yourself a bundle. Source(s): I just fixed my TV!!!!!!!!

Jul 24, 2009 | Samsung 50 in. Plasma TV

2 Answers

TV wants to turn on & off (clicking sound)for about 10 minutes.


The issue has been resolved. I removed the back of the TV (pretty easy actually) by laying a blanket over the kitchen table and placing the TV face down. I started with the power supply as an obvious beginning. Both fuses on the board tested fine. And touched up every solder joint with a hot soldering iron in case the problem was a cold solder joint. After this painstaking venture, I performed another visual inspection and noticed a capacitor that had a thin black X on the top of the can. This is a common sign the capacitor has over heated. I located a replacement for $1.20, installed, and successfully powered up the TV. I have had no problems since.
Oh, yeah, I also paid $120 for a BN44-00150A replacement power supply, plus overnight shipping. It actually arrived three weeks later. That was two weeks and six days after I fixed the power supply myself.
billdozier@gmail.com

Apr 10, 2009 | Samsung LNT5265F 52 in. LCD HDTV

3 Answers

Astar LTV-2701 27 in.


Hi Tim
I got the capacitors from Honson (College Home Hardware) 306 College St. W., Toronto, ON, CANADA, honson12@hotmail.com.. They cost between $1 and $5 ea and there were 26 of them to replace.. As I remember, the bill for the capacitors was about $80. If you don't live in Toronto, you might want to Google yourself another source, but he lets you pick them out of his parts bins and you can get them immediately. His prices were also better than anybody around here. You will also need a roll of 2mm copper desoldering wicking tape ($3), a 150 watt soldering gun, a 40 watt soldering iron and a roll of rosin core solder.

Repairing the board is as easy as 123, 26 times :(
1) Make a list of all of the electrolytics on the board. To order them you will need to supply 3 values for each: The voltage (ie 35V), the capacitance (ie: 220uf) and the temperature rating (ie: 105C).
You should be able to read these values off the ones on the board. There is quite a bit of duplication, so even if the existing one is too fried to read, you may be able to match it to another one the same size color and shape.
2) Put a black mark on the top of each capacitor in the board with a black permanent marker so that you will be able to identify which ones are left to replace.
3) Replace the capacitors one at a time by placing the copper desoldering tape abon the connection you wish to desolder and heating it with the soldering gun until the solder on the board is wicked away into the tape. Remove the capacitor noting the - connection and insert the replacement with the - lead in the same hole as the - lead of the other capacitor went into. Solder in the new capacitor with the soldering iron.
4) Repeat step 3 twenty-six times, check your work often and you're done with the board.
5) Now, cut, drill or punch some extra holes in the metal coffin that the power board sits in so that you wont bake it again, install the power board and fire up the TV.

It worked for me first time, just be real careful that you install the capacitors with the correct polarity and that the new solder joints are shiny and dont bridge to other connections.

Good luck and let me know how you make out.

Jim

Nov 08, 2008 | Astar LTV-2701 27 in. HD-Ready LCD...

1 Answer

Hplpw175x7


I would try the power supply first as the ATC336 has a history of the bad power supply boards.If the power supply doesnt fix it then I would think it may possibly be the ballast

May 30, 2008 | RCA HDLP50W151 50" Rear Projection HDTV

1 Answer

Mbox


sounds to me you have a common problem of the mbox 2 blowing the maximizer. i had this happen on one and fixed it myself by purchasing new capacitors and replacing the ones on the pcb board.you can actually change a few capacitors to make it alot better. such as a mbox one with the better capacitors

May 13, 2008 | Digidesign MBox 2 External Sound System

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