Bought a Proscan 55LC55S240V69

[christo499]

Here's a general observation of the issue : Immediately when plugged in it tries to power on ( relay clicking ) fails then goes into standby at which point if the power button is swiped will try to power on again , fail and then remain in that state without going back into standby . Visual check of power supply components seems good with the exception of a buzzing sound coming from the general area of VD812 which has SP933 and B2545G printed on it . Backlight flashing momentarily ( intermittent ) along with clicking relay . I repaired a Hitachi with similar issue by replacing the mainboard ... the difference being that the backlights would come and and stay on indefinitely .

[Glitcher]

Re: Bought a Proscan 55LC55S240V69

Common problem with this model, check the rectangular blue polyfilm capacitor near the transformer on the psu

[christo499]

Re: Bought a Proscan 55LC55S240V69

I did visually it looks good , no signs of overheating . The only thing that's abnormal off hat is the buzzing sound coming from a transformer winding , almost inaudible .

[christo499]

Re: Bought a Proscan 55LC55S240V69

But sticking with your advice does anyone know of a replacement for that capacitor ?

[traderx]

Re: Bought a Proscan 55LC55S240V69

But sticking with your advice does anyone know of a replacement for that capacitor ?

https://www.badcaps.net/forum/showth...t=17613&page=4

quick glance... see post #62 onward.

or this thread:
https://www.badcaps.net/forum/showthread.php?t=25679

they suggest taking a look at C857

[christo499]

Re: Bought a Proscan 55LC55S240V69

I decided to buy a working parts tv with a cracked panel instead of fixing the power supply : LG 55LH400C . If anyone has a direct reference to the panels being the same I'd appreciate it . The Tcon board is the same in both models so I assume the panel is the same . I haven't bought the parts TV yet .

[tom66]

Re: Bought a Proscan 55LC55S240V69

The PSU will NOT be the same, but you could always just swap the Proscan LCD panel into the LG.

[christo499]

Re: Bought a Proscan 55LC55S240V69

The PSU will NOT be the same, but you could always just swap the Proscan LCD panel into the LG.

Thats' what I meant . I figure since the tcon is the same so is the panel .

[tom66]

Re: Bought a Proscan 55LC55S240V69

If the t-con board is the same there should be no issue. Only concern could be mechanical mounting positions for panel being slightly different.

[christo499]

Re: Bought a Proscan 55LC55S240V69

Anyone have a power supply near Tampa/Lakeland/Winter Haven/Orlando Fl. I could try in the tv before I buy one ?

[christo499]

Re: Bought a Proscan 55LC55S240V69

anyone ?

[christo499]

Re: Bought a Proscan 55LC55S240V69

Update : Replaced the usual capacitor and the set works great . It sat for a year before I pulled the cap out and noticed there was a crack in it .