Question about Astar LTV-2701 27 in. HD-Ready LCD Television
Hi, I read that you replaced capacitors on the power board of an Astar LCD Tv. I was wonering where you buy theres capacitors, and how to instal them. I have a Tv with its capacitors going, and was wondering if you could help me with it.
Photos of power board and capacitors
Posted on Dec 29, 2008
I did change myself all these capacitors. It cost me a little over US 38 plus shipping. I placed the order over the phone to Digi-Key Corporation in Thief River Falls, MN. If anyone interested I can send a copy of the invoice with all the capacitors codes and values. Good luck!
Posted on Nov 21, 2008
I got the capacitors from Honson (College Home Hardware) 306 College St. W., Toronto, ON, CANADA, email@example.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.
Posted on Nov 08, 2008
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Posted on Jan 02, 2017
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