This set has a power module 2300keg003a-f. Someone has removed 10 caps . I have the caps they removed. All are 3300uf @10v, except 1 which is 680uf @ 50v. I need to know which one that is . C271, c272, or whatever. Most of the removed caps check bad and look "pregnant" I just have to know the odd one to repair this set.
If you wish to get some details; check the site linked here. Pull up older posts. Surf the site with patience. http://electronicshelponline.blogspot.com/
SOURCE: astar ltv2701 Power Supply
I just finished replacing all 25 or so of the electrolytic capacitors on the power supply board of an LTV 2701 AStar TV. When I got done, the tv came back to life and WORKS GREAT. Every last electrolytic was either leaking onto the board or puffed up or both. The main problem is that Astar designed the case so that no air can circulate over the board and the capacitors bake after a couple of years. If you don't do somethig to let the air circulate, you will be replacing them again in 2 more years. The board is pretty sturdy however and its fairly easy to replace them all with some copper desoldering braid and a 125 watt soldering gun. Just be sure to keep the polarities right on the electrolytics and make sure that they are the 105C variety. Good luck and remember to add some fans and cut some extra holes in the cage.
SOURCE: Polaroid " 3211 TLXB red light no power
hi remove the supply to the main board & inverter, now power your psu if give you this same above voltages , go for new power supply unit. change your power
SOURCE: power supply has blown fuse found two caps bad
You can contact them to see when they will have it back instock: http://www.shopjimmy.com/power-supply-unit-partnum-from-olevia-lt42hvi.htm
This the part number EEC-PWFSP27-000
SOURCE: Maganovox 37'' power button not lighting up anymore.
Set your volt meter to the diode check and measure across the white fuse [power off and unplugged],Shuld read zero. Then the fuse is good, an open fuse will have no reading. If you replaced the caps....be sure the voltage is the same or greater. The Mfs must be the same...and most importantly be sure they are 105dgrees. In some cases they could be 125 degrees. If you replaced them with 85 degrees you will definitly not get a good start up. And always be sure you check the polarity on the caps to the board. The board should show a plus or minus. The long leg on a new cap is always positive. Locations for the caps I believe are2074 which is 25volt 2200Mf and cap 2081 is 35volt 1200Mf and a third cap 2066 at 16volt 10Mf. Be very careful with cap 2066 as the trace on the board can be damaged when you unsolder this! Good Luck!
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