Re: diode hair line crack

everythig works perfect for about 1 minute 20 secs, picture is there and sound up and down channels ok, then it switches itself off for about 40 secs then switches back on for about 1 minute and keeps going like this, i will take some better pics of the tv and post here later on thanx for the help guys

Re: diode hair line crack

ok found another diode hiding behind the 2 large caps to the top left side corner of the inverter (coil) on the power board, i measured this with a multimeter XL830L on diode setting, normal way i get .428 and i am getting a reading the other way also, and it counts from 365 all the way up to 1.999 then the meter cant go any higher and just gets a reading of 1, i used a newcason xc6013l meter to read the caps not too sure how to do a ESR check because i dont think this meter will check that?? the diode is a F54 series can not see it properly as i have not...

hello, i have a power board 17pw26-4 from a Toshiba 40 inch lcd tv. the problem is it comes on and roughly between 50 seconds and 1min 10sec seconds it switches off, i have metered the caps and all is well but i have found 2 big diodes with a hairline crack from cathode end to the anode , i did a diode test on them and they measure 388 to 389, they don't measure anything the other way, not familiar with diodes and have tried to post a pic but don't know if it has went on here, any help appreciated...

Re: newbee capacitor samxon 150uf 450v

thankyou for your reply

Re: newbee capacitor samxon 150uf 450v

might answer my own question here did not see the HP(M) on the cap believe giving it 20% is this correct????

I am a newbee on here so if i am not supposed to be here then forgive me.cap 150uf 450v out of a 42inch lcd Toshiba TV all caps look good tests well i am a bit puzzled, this one gives me a reading of 137uf on the meter, the tv switches on ok then about a minute it will go off and 30 secs later will switch itself back on. The question..... is this cap ok or should it be replaced as i have read that as long as its within a 10% range it should be ok tested with newcason XC6013L setting on 200uf thanks. jimmy

Re: New Members - please post your introductions here

hi all i am 47 and live in the north east of England, i am married with three kids. just playing around with other peoples broken electrical items (TVs, car radios, washing machines, tumble dryers and PC) managed to fix most but not all as i am just starting out. i think well its broken anyway if they are going to throw it away i might as well as give it ago of fixing it. i am also just starting to learn myself about micro controllers just flashed my first 2 pics (16f628A) and (12f509) to make proton pack lights for my ghostbusters...