topdawg wrote:I completed the install and the problem still presist the red light blinks and clicking noise
I double checked all the polarity on the caps everything seems normal.
Any help ? thanks
topdawg wrote:Hello i am new to the forum and my first time trying to fix a tv . So here goes I have a samsung lns4051 and I am having rhe same problem mention in this forum it will not turn on. So after some heavy research I wanted to attempt to repair the tv myself, I didn't find the exact replacement caps the caps removed from the tv were 1000uf 10v 105c and i replaced them with 1000cf 65v 85c. After installing the new caps the tv stilll does not turn on . I inspected the polarity of the caps that i replaced to see if i made a mistake but they were installed as i took them out . The tv still just clicks .. Can anyone help with some advice ?
zazik wrote:Hi, huge thanks for the finding, I did it myself, my LN-S4041D is working as good as new.
This is how it looks from the back after cover has been removed (19 screws! )
Big light PCB is a power supply board, our caps are on its upper right corner.
Here is a close up of those four capacitors, as you can see they are inflated, on top of two middle ones there is a dark spot of burnt electrolyte.
This is an image from the side, all four of them bumped
I unsoldered them, here you can see their marks CM812, CM817, CM811 and CS806.
All four are rated 1000mF 10V, I didn't touch others that look good, they are rated for 25V.
I'm in Canada, we have other store for electronic components: SAYAL, I found there 1000mF 35V for $1.35 CAD each, they are also made by Samsung
By the way, original capacitors are designed for maximum working temperature of 105C, new ones however for 85C, I hope it won't come to that.
35V capacitors are 25-30% bigger, do not cut the legs right away, first solder then cut, solder above PCB to give a little more freedom. Sorry for the background
This is how it looks after rework, as you can see, unlike original ones, they are touching each other.
Here is a view from the angle, a small one on the right CM809 has been pushed by a bigger capacitor a little, so keep in mind to leave some extra length on legs to pull it away from it after soldering.
Good luck and don't be afraid, it just needs a little patience (for better experience) a little fear (for caution) and a strong wish to save money (I hope it’s worth it) .
dave123 wrote:I have replaced some faulty capacitors on my samsung le40r87bdx/xeu tv motherboard, but i still cant get freeview or normal tv stations,and my screen is ghosting.Should i replace the other 2 that didnt look faulty,or could it possibly the mother board that is causing the problem now.Any assistance would be much appreciated.THANKS.
zazik wrote:I'd recommend to use caps with higher voltage ratings that you originally have otherwise you will be facing the same problem in 1-2 years again.
Acorrding to the specs, United caps are much better (look for the lowest impedance and highest current ripple). The ones rated for higher voltage and capacity have higher ripple ratings, also thicker ones are better than longer ones. But before choosing different ones you need to check clearance.
I'd rather get one step higher in both voltage and capacity.