hep with a part on dmtech mainboard

[wreksta]

hi all I have this dmtech 37" tv when I switch on I get a ticking from either of these parts the the buck reg marked 2576-3,3dd or that coil near the ic legs marked 530 the ic to touch burns as does the coil so want them replaced

shown in pic



can you tell me if I can use a coil ferrite component marked up as 470 that's all that's on it

and can I use this ic 1501 then under that has 0647el in place of the offending 5 legged ic


thanks in advance

[wreksta]

Re: hep with a part on dmtech mainboard

anyone

[tom66]

Re: hep with a part on dmtech mainboard

I'd check the buck diode, which will be on the same pin as inductor & chip, is not shorted. If not, could be the load shorted. You can try powering that part externally with a high current to blow out the short, but be careful to use current limiting.