Question about Flat Panel Televisions
SOURCE: TV power supply burnt out
If you can read the numbers on the power board, sometimes really obscure and have the model number of your tv, you can contact the manufacturer and see if you can buy the power board directly. If not, contact a local tv shop and read the part number off to the tech and give him the make and model and see if he can locate it for ya. some of these parts have lifetime warranties so check with your manufacturer. hope this helps, j
Posted on Apr 08, 2009
SOURCE: 37"scott lcd tv power supply
Hey gessneruk, remember the one you and I were working on saturday that had no +24V? I got it up and running!
I had lost +24V on my power supply (Megmeet MLT386) and found F2 on the power supply blown out (3.15A). This was caused by a shorted QA2/QA2A (both are 9N50C FET transistors) After replacing these it still did not work, I found that four .47 ohm SMT resistors at R233 through R236 were blown open, I replaced them with a single .1 ohm 2W resisitor, I also had to replaced transistor QF1 (marked 2X4). After replacing all of these components, I restored the +24VDC and the tv.
Posted on Sep 15, 2009
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