Question about Televison & Video
Samsung s42sd just died.stnd-by light blinks four times when I plug power cord.It have a relay sound clicking every 20 sec or so on PCB and main digital input board.I do have 5V stnd-by.I hear the click when the 4V from PS-ON is going on 0V for about 1 sec.I do not have any other voltage going out from PCB.
I dont think it as an IC problem... it must be a short circuit occuring somehwere in the board.. and this is ticking is from relay which protects the circuit from the shorting..
so look out where is that bad portion of shorting.. if u r able to isolate it then i think u will get it fixed..
Posted on Jan 15, 2008
All this internal tv stuff is beyond my expertise.
since no one has said anythign for a while
im just putting this out there:
you have to become a member first
but they could probably help you better than me.
Posted on Jan 14, 2008
The best thing to do is bring your samsung to the nearest service center for repair.
Posted on Jan 14, 2008
Its a power problem.. Its deffinately on the sub electronic controll circuit as the set would not have even gained power if it was the main supply.. I suggest you look at defective or damaged components especially capicators.. If you have limited experience on this i recommend you take it to a technocian.. I will tryy to obtain more detailed information for you on the trouble shooting and repairs as well as other stuff that you can try..
if you are looking at the problem look at the relays and the capacitors close to them, Look at the transistors and ic last.. you can use a multi tester and see where the voltage stops, more than likely its that componet or the one before it is bad..
If a relay is tripping ceck to ensure the relay is getting power before it trips. If the relay shows contunity to input voltage but still shuts off its the relay thats bad...
Posted on Jan 13, 2008
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Posted on Jan 02, 2017
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