bad tcon fuse

[petehall347]

sorry i dont have pics or board number to hand .
main fuse 4.7v one side 0.47v the other side . the fuse measured 0 ohms yesterday . today after testing voltage it measures 7 ohms . is there anything i should check on the tcon board before replacing the fuse . fuse is 5 amps measured on board .
might this just be a case of a worn out fuse i wonder ?

[budm]

Re: bad tcon fuse

Check the resistance on the load side of the fuse against the T-CON circuit ground, you should check the resistance between T-CON circuit ground against test points AVDD, VGH, VGL, etc, if you can locate them

[petehall347]

Re: bad tcon fuse

ok will do . thanks.
just a note to add .tv was fine then put into standby all day then fault found after switching on again .back-lights no picture .no idea about sound as no idea what input it was set on if any as this tv forgets what it was on last most of the time .
also made slight buzzing humming same as when something is drawing too much current or damp but no way it got damp . it no longer does this .

[petehall347]

Re: bad tcon fuse

ok no apparent shorts so soldered 5 amp fuse wire on top of old fuse and now have picture . think i will get some new fuses for it just in case something goes wrong . tiny little things they are .think it is marked with an s and i believe it to be 5 amps .

[petehall347]

Re: bad tcon fuse

its a p and green . about 1.65mm x 0.86mm .. just looking up code for sizes

[petehall347]

Re: bad tcon fuse

here is the board fuse is cp01 . excuse my messy soldering of the fuse wire . same as fuse next to it

[petehall347]

Re: bad tcon fuse

i am truly shocked at the price of these fuses .. £8.71 for 10 .. it might be staying as it is .

[diif]

Re: bad tcon fuse

i am truly shocked at the price of these fuses .. £8.71 for 10 .. it might be staying as it is .

Cheaper on Ali https://www.aliexpress.com/item/32847428852.html

[petehall347]

Re: bad tcon fuse

Cheaper on Ali https://www.aliexpress.com/item/32847428852.html

thanks but i dont really want to be waiting a month for a tiny fuse .

[petehall347]

Re: bad tcon fuse

worked out what i am going to do to replace the fuse .i have a plan . am leaving the 5 amp fuse wire where it is . i am going to trace the 5v feed wire to tcon and cut it and splice in a 3 amp fuse . simply solder wires to a 20mm fuse and shrink wrap it . this will make it easy to change if the need arises .

[petehall347]

Re: bad tcon fuse

i fixed it . hoping it lasts . excuse my messy work .