HI I have this Samsung Sp24243 that when you push power button it blinks a blue light four times. It has sound but no picture. I tested all fuses and were ok then checked caps and same no problem. Any advice on this one
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For a number of reasons, both health and personal, I will no longer be active on this board. Any PMs asking for assistance will be ignored.
Never be afraid to try something new. Remember, amateurs built the ark. Professionals built the Titanic. -
Re: Samsung Sp-s4243 turn on but no picture
sorry meant s4234Comment
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Re: Samsung Sp-s4243 turn on but no picture
s4243Comment
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Re: Samsung Sp-s4243 turn on but no picture
I went through the manual real quick and in the trouble shooting section it states that blank screen means you x or why board is bad or the DC-DC SMPS could be a problem.
I think my problem could be the DC-DC SMPS.
On the manual it says:
"DC-DC SMPS= Blank screen, the Relay repeats On and Off."
Does relay repeat mean led turn on and off?Comment
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For a number of reasons, both health and personal, I will no longer be active on this board. Any PMs asking for assistance will be ignored.
Never be afraid to try something new. Remember, amateurs built the ark. Professionals built the Titanic.Comment
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For a number of reasons, both health and personal, I will no longer be active on this board. Any PMs asking for assistance will be ignored.
Never be afraid to try something new. Remember, amateurs built the ark. Professionals built the Titanic.Comment
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Re: Samsung Sp-s4243 turn on but no picture
Good morning all I have done all the check points on the main board and dc dc smps board and number were good to the sticker on back of pane. Then on page 58 it to check logic board for proper voltages of 5v,3.3v. How do I check the voltages on that board. Two of the leds light up in a normal pattern first one lights then the other lights up. It is a normal rythm. Should all leds be on?Comment
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Re: Samsung Sp-s4243 turn on but no picture
Samsung does not have error code at all.
The lights that you saw on the logic board (this behind the mainboard) is just indictors that they are getting power and active.
With TV unplugged from mains, go over all fuses with meter for open fuse. If found one that is blown, that means the board is shorted out.
Keep us updated.
Cheers, WizardComment
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Re: Samsung Sp-s4243 turn on but no picture
I had aleady dont that and none of my fuses were blown. They were all okComment
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Re: Samsung Sp-s4243 turn on but no picture
what do you mean by open fuse?
sorry i am new to all this but have learned alot from you guys.Comment
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Re: Samsung Sp-s4243 turn on but no picture
An 'open' fuse is one that has given its life in sacrifice to keep the rest of the circuit from blowing up. The fuse limits current flow, and when there is too much, it melts, opening the circuit that was heretofore closed. There will be infinite [essentially] resistance across the leads of an open fuse.
tomComment
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Re: Samsung Sp-s4243 turn on but no picture
hello everyone i have done all checks points for vs,va,vset, and i got all good numbers. i checked all my fuses. My next question is where would i check to see if my y main board is working or x main board. I also have visualy inspected boards to see any burnt or damaged parts/blown caps and havent seen any. I posted an ad on CL in my area to see if anyone has a tv thats the same so i can replace parts. I would like to learn and try to replace what parts are needed replaced in the boards themselves.Comment
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Re: Samsung Sp-s4243 turn on but no picture
i haven't been able to find fuses f5001 and f5002. which are check points on the y main boardComment
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Re: Samsung Sp-s4243 turn on but no picture
here is a pic of the boardAttached FilesComment
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Re: Samsung Sp-s4243 turn on but no picture
uploaded it here
http://www.4shared.com/document/tGx4...A_N_42SD_.html
Comment
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