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I'm gonna try to fix my HDTV

jpr62902

jpr62902

Jeanclaude Spam Banhammer
I've been reading online about the symptoms my TV is having. It seems a capacitor goes bad on the power supply circuit board.

I've done a little soldering in the past, but never on a circuit board. I'll be replacing an electrolytic capacitor, so I know about the polarity thing. Any other tricks of the trade y'all could offer would be most appreciated!
 
Do you have a fine point pencil style soldering gun? The bigger Weller ones put out too much heat unless you use a fine electrode and feather the trigger real careful. Get get some good fresh electronic board solder. Have a wick handy so you don't run any beyond where you are going to be working. Good needle nose preferably with a 90 degree bend and work fast. As soon as one end is loose get it out and move to the other end.You will need to heat it again to get the new ends in and do both before you worry about finish soldering.
 
Thanks for the tips, Mulie. What kind of wick? Here's a pic of the board. Looks like there's plenty of room for a sloppy solder job. I'd be replacing the capacitor numbered 2074.
 

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Thw wick is either a piece of braided wire, like the outside of a coax soaked in resin and flattened or a solder sucker like you can get at radio shack. The object is to apply enough heat to remove the cap then use the wick and some more heat to suck up the solder and leave the hole open for the new cap, or use the solder sucker and a bit of heat to suck the solder out fo the hole. Anyway, the object is to leave the hole open to accept the new cap.
 
Adillo303 said:
Thw wick is either a piece of braided wire, like the outside of a coax soaked in resin and flattened or a solder sucker like you can get at radio shack. The object is to apply enough heat to remove the cap then use the wick and some more heat to suck up the solder and leave the hole open for the new cap, or use the solder sucker and a bit of heat to suck the solder out fo the hole. Anyway, the object is to leave the hole open to accept the new cap.
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Could you also heat the solder and insert a wood toothpick in the hole?
 
jpr62902 said:
Could you also heat the solder and insert a wood toothpick in the hole?
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No! I would use a small paper clip maybe but not wood. It does not conduct electric.Often you have to heat it around the hole and pop the pin or wire of the new one in. I use braided wick also to keep things cleaned up. Looks like you have an ideal location for the repair. Not jammed in around other things.
 
save yourself the trouble get the sucker it will remove all surplus solder and leave you a clean hole also look in to a butane heated soldering pen new electronics are so sensitive to stray electricity that they recomend butane now instead of electricity
 
If I had that board out and was looking to repair an expensive TV, I would take it to someone who has a lot of experience with electronics soldering, and let a pro do the job.
 
Agree on the no toothpick

Agree on the butane solder iron. Added point no cord to get caught at an inconvenient moment.

If you use the paper clip make sure that you do not heat the paper clip and burn your fingers and that you do not remove the heat too soon and solder the paper clip i the hold.

Agree on the easy location to work in.
 
Fixed it. Thanks for all the info, folks. I now give you, Oprah!
 

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muleman said:
Good deal!. Are you that good in court?:whistling::whistling:
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I'm sure it would have been just as easy to solder in a courtroom as it was on my kitchen table.:whistling:

nixon said:
Kinda doubtful there Bill . Any guy that admits to watching Oprah can't be all that hard edged ,and aggressive . :yum::yum:
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I knew I could count on you for a zinger.:w00t2:

Actually, that station came in the best from my outdoor antenna. I also thought there was something strangely ironic about a screen shot of a big old wrinkly elephant with the caption "Oprah."
 
jpr62902 said:
I'm sure it would have been just as easy to solder in a courtroom as it was on my kitchen table.:whistling:



I knew I could count on you for a zinger.:w00t2:

Actually, that station came in the best from my outdoor antenna. I also thought there was something strangely ironic about a screen shot of a big old wrinkly elephant with the caption "Oprah."
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Pelosi would have been a more fitting caption . Good job on getting it fixed & not having to call THE guy :biggrin:
 
jpr62902 said:
I knew I could count on you for a zinger.:w00t2:
Actually, that station came in the best from my outdoor antenna. I also thought there was something strangely ironic about a screen shot of a big old wrinkly elephant with the caption "Oprah."
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My statement was all in fun . I hope You know that .
Actually I'm impressed with Your ingenuity . Many folks would have shipped the TV off to the land fill .
 
nixon said:
My statement was all in fun . I hope You know that .
Actually I'm impressed with Your ingenuity . Many folks would have shipped the TV off to the land fill .
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Yeah, I know.:biggrin:

I wouldn't call it ingenuity, though. All I did was type my tv model number into a Yahoo search and got bunches of info on the fix. The part was $5.00. I figured I'd give it a try and if it worked, great. If not, I still had a broken tv.
 
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