TV Repair Questions? Ask a TV Technician
I have a Samsung un55c8000 that just keeps clicking whe powered on.
Yes the Samsung light flashes on and off
If I don't here from anyone shortly, I will assume this is a scam and alert my credit card company,
This is usually always a Power Supply or a short in the System that causes the Relay to click continuously trying to power the set back up. I see that this is a 55" LED TV. Is this Samsung still under warranty?
If it is, we can't continue forward as it will void the warranty. This is hardware related and being a 55 in, Samsung will have a tech come out to your house and perform the repairs for you.
If it is not under warranty (and may not be anyway since you have already removed the back) the first thing to look at is to check for puffy and/or leaking Capacitors on the Power Supply.
This is a clear indicator of heat stress, and you have 2 options.
Replace the board with a used one (ShopJimmy.com or eBay are good sources) - or take the board in and have the capacitors replaced with better quality/higher rated ones to a void future failure.
In either case - expect to pay about $130 to get it back in running order.
Be sure to match board numbers if you decide to order a replacement yourself. There are more than one version of the board used in this model.
If you have additional - Just Ask.
That's it, no troubleshooting or anything?
Not happy with answer, No troubleshooting was performed to determine board was bad like voltage testing etc...
Please refund money.
There is nothing to troubleshoot - you have described a common problem.If you have an oscilloscope - you could check the capacitors in-circuit. Most poeple coming here for help do not.About all you can do is visually confirm the capacitors are to blame - other than that - the "fix" is what I have described above.Here is where you should be looking - for swollen or expanded domes on these capacitors....
There are no swollen caps!!! I knew Samsung had cap issues before paying for your service. I didn't need to pay for that... Since you cant offer anymore assistance and I am knot happy with the troubleshooting please refund my money...
Perhaps it would be better if you tell ME where you would like to check for voltages?You came here looking for help - but are declining the advice being given to you. The "clicking" indicates the power-on relay turning on and off rapidly.... and it is the FIRST thing in the power line of progression.This indicates there is a voltage anomolie the TV is experiencing, and it is not starting up because it cannot attain the standby voltage.All of this action take place on the same power supply board.
Isnt there a p-on voltage check that goes to the motherboard??? Why could it not be the Main Board causing the relay to click?
I will have to check when I get home tonight... Just as an FYI, I do have a scope and knowledge to replace components on the Power Board or Main board. I have a hardware background..
So I unplugged both connectors from the power supply board to the main board and I get no back light OR Samsung light at the bottom of the TV. (and no clicking) When I plug them both in, I get the clicking noise and no Samsung light.
So you want all cables disconnected from the main board and not just the 2?
Not sure what cable is the LVDS cable.. Do you have a pic?
I believe I found it, its the flat black ribbon cable... If so, I disconnected it and I now get the Samsung logo lit and when I power on, I get the chime and a backlight.
Thats what I was afraid of now we take it one step furtherthat cable goes to the tcon boardyou just isolated the tcon and the panal now we need to see if its the panalthen we can throw the tv away without spending a dime on it (other than your tech advice) The tcon has one flat cable in and 2 or 4 out to the display disconect the cables that go to the display from the tcon (Under the METAL shield)plug the cable back in you just pulleddo we return to clicking?i sure hope so if notthe LCD PANAL is at fault its the last part in the chain and its dead shorted tv is toastif it does click then the TCON is bad and easily replacable in my expereince its mostly the panalgood luck
So I plugged the cable back in and I am watching TV again.. It now works.. I took some voltage readings as well..
So a little background on my TV. About 2 months ago it would power off and then back on… Then it got worse and 5 weeks ago all it would do is click. I called someone out to fix it and he replaced the Main board (I was here when he did it) and it DID NOT fix it.. It still clicked when he put the new main board in.. He then put my Main board back in and ordered a Power supply board.. I was here when he put in the new power supply board as well.. It fixed it… 1.5 weeks later it started clicking again.. I called them and told them it was broken again and they told me it was my panel (without even coming out again).. I told them it was probably a bad new Power board since it did work flawless for 1.5 weeks (I don’t know if it was a new or “refurbished power supply board“) They said it was my panel and sent me my money back since they did not fix it.. This brings us up to today..
If it was my panel, would that be intermittent since it now works?
TV has been fine for 2 weeks and started clicking again today. When I unplug it and plug it back on, I get the orange power light on bottom right and when I turn it on, the power light goes off and the Samsung light does not come on and then the click of death..