Tx-p42u3ob

[jmh474]

So I'm a little stuck on this one, I have a plasma TV that won't come on, relays click a few times then nothing, the green led on front of TV flashes a few time think its 6 time to fast to count lol, I don't normally do a lot of plasma so bit of a loss really any help where to start

[Hombre]

Re: Tx-p42u3ob

Check SN board for shorts. Usually the ones that goes bad are Q401, Q402, Q421, Q422

[jmh474]

Re: Tx-p42u3ob

so im a bit new to this sorry to say iv found the parts on the sn board but unsure how to test the components, the most i do with tv is replace BAD CAPS and boards iv only really just started out repairing tv on the side

[Hombre]

Re: Tx-p42u3ob

Well put the multimeter scale on ohms, like 2k, and then check resistance between the legs of those IGBT's, so 1-2, 1-3 and 2-3, and if you find a short (low ohms) next step is to unsolder them from the board.

[jmh474]

Re: Tx-p42u3ob

ok so i checked the IGBT's and these a short on all of them, so what will be the next step after removing them? the SN board is reading a short on connecter SN2

[ReeceyBurger123]

Re: Tx-p42u3ob

Maybe do some research on these U30B sets it will help rather than making a thread thats just pointless.