Question about Samsung PCJ534RF 53" Rear Projection Television
It takes a few minutes to 10 or more for the TV to turn on after hitting the power button. I hear a sort of clicking after hitting the power button.
Points to a power supply problem if set "hard to turn on"
The clicking is a manual relay trying to engage.
This sounds like a very common issue.
If set is hard to turn on (takes several tries)but will eventually turn on here is what my guess would be.
Every set has a standby power supply that is running 7/24 if the set is plugged in and it supplies voltage to the remote circuit that turn on the main power supply for the tv and hence turn the set on.
This is an area where companies cut corners by using lower rated voltage caps. By this I mean Standby usually provides under 10 volts to trigger the set on----what they do is use filter caps rated at say 10 volts max in a circuit with 9 volts (example)=with the standby on all the time the filter caps (electrolytic caps) dry out and fail.
The problem usually begins where you have to turn set on or or two times and gradually gets worse--takes longer and more tries to get it to come up.
Once on it will stay on until turned off for a period of time.
The caps will begin to work better (regain some of the capacitance) as they get hot--hence one it is on it will seem ok.
The beauty of this problem is most of them happen when set is a year or two old (no warranty) and all you have to do is look at the top to locate bad ones.
They are generally black or blue and round and vary in --they have two connections each--a + for positive and a - for negative--not unlike a battery which in a way they are. The + and - are marked on top and bottom of most boards.
They are easy to replace and not expensive parts.
The tops are silver and metal looking with creases on top and if bad they will be puffed up on top---tops must be perfectly flat with no brown material leaking top or bottom.
If this is your problem once you id them (make a drawing) you can begin.
Here is the critical part---on each cap is also marked the value like 220uf 10 vdc---220 micro farad at 10 volts maximum.
If you find for example 6 puffed up and all are 10 vdc replace them with the same value capacitance (like the 220 uf) but go up to at least in this case (from 10 volts) to a 16 or higher rated voltage cap.
The only issue is when you go up in voltage rated value the cap is larger so sometimes there is an issue of physical space for the replacement on the board to fit them in.
The reason they cheapen these sets in this way is if 10 caps and you make 25,000 sets there is a considerable savings in parts cost.
They do not care as long as it lasts past the usual one year parts warranty.
I have taken the time to be long winded because this really sounds like it may be the problem you have.
See attached photo of a typical cap and if you have questions or need advice let me know.
Posted on Nov 06, 2012
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Posted on Jan 02, 2017
SOURCE: Loss of Power
You might want to unlpug the powercord for the night, then plug it back in the next morning. Some times that can help reset things. If that still doesnt do the trick, you might have a faulty power cord. If it does this with every source you hook up to your TV then that would be a sign that its something in the set vs. your external source.
Posted on Sep 24, 2007
SOURCE: Samsung HCN4727W
OK, finally found a 'replacement' part number since the original board isn't available. Replaced with BP95-00142P. Obtained from PartStore.com. Plugged in new part. Worked for an evening. Went to turn on next day and back to original problem! There must be a part feeding the convergence amp that is flakey and blowing the amp! Any more ideas?? Otherwise, just threw away $100 trying the easy fix. :^(
Posted on Jul 10, 2008
The hissing sound could be high voltage leaking from a tripler. Observe in a dark room for blue arcing. Look at tripler and connections to the projection tubes. If the tripler is leaking replace the tripler.
Posted on Oct 14, 2009
Ur tv the Ballast board the help to turn on the tv projection bulb is dead.Try website like Tvrepairworld.com to buy the Ballast board for the replacement.The Samsung/Akai tvs use the same Ballast board.When in the website go to the menu that said Samsung/Akai circuit boards.Pick that option click on it,u will see a picture of a Ballast board look like.
Posted on May 31, 2010
I had a similar problem with my Phillips 42 in. LCD HD TV.
Here's the problem. The Power Supply Board. I opened my TV up(warranty was up of course) and found several bad capacitors. Phillips and several other companies were sold capacitors that although were highly rated failed within 5 years because of a lack of preservatives. All sorts of electronic equipment is now being effected due to these defective capacitors.
1. Take it in and have it fixed
2. Open it up, check the board for faulty capacitors(bulged or leaking) Buy a new Power supply board and install it.
3. Remove PSB, remove faulty capacitors and replace with compatible new ones.
Hope this helps
Posted on Dec 09, 2010
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