Samsung LN46A500T1FXZA fixed

[lotas]

hi i have LN46A500T1FXZA

and there are overpriced repair kits for not powering on...and or powering on with no image...bl on...and intermittent loud screech sound coming out of speakers

the parts are ic101 and c102 on main board

can someone tell me the ic101 part descriptions so i can order myself...and does c102 replace have to be 100uf?..if not what range of values could be used? i see someone usef 47uf and it worked.

C102 (10 µF, 10 V)
IC101 (MP2363DN-LF)

[shelby5041]

i have same tv...tv power on with jingle...bl on...but no image ....i replace c102 no change...i do have 12v input on tcon board.at VIN but at V12V check point i have 0V....my guess is bad tcon?...or could this be main board failure...seeing that i have 12v going to tcon and no image im just guessing tcon is bad...im hobby only...no pro...looking for pro advice

[shelby5041]

nevermind it cant b tcon....i installed another tcon and no change...must be bad main board...ill toss tv in trash as its not worth buying a mainboard...tv is only worth 25$ im my area even if working

[shelby5041]

thanks lotus...if c102 is 10uf why are people using 47uf and 100uf ?

[lotas]

thanks lotus...if c102 is 10uf why are people using 47uf and 100uf ?

10uF (tantalum) was originally supplied, you can increase the capacity (22, 33, 47... 100uF), nothing bad will happen.

[shelby5041]

thanks lotus
i wonder why this didnt fix my tv?..i installed a 47uf 25v cap...still no image ....

[shelby5041]

here is a partial pic of my tcon.

i have 12v at the VIN pad....and at the V12V pad i have 0v...using the gnd pad for both...how can i rule out a bad tcon causing no image?

[lotas]

Check this fuse.

[shelby5041]

thanks will check it .not sure how i missed it...guess i was looking for a F lsbel for fuse normally F1 and didnt see it...overlooked it ....i did swap tcons prior and no change...the odds of both boards having blown fuses not likely but is possible..should i have 12v at the v12v test point?.....if fuse is ok then what?