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Samsung PS42Q97HD

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    #1

    Samsung PS42Q97HD

    i have a 42" plasma tv sat here. the original fault was that there were red lines and dots on the screen. so i opened the back and saw that 16 caps needed replacing. so i obviously replaced all of the caps. i then tested the thing and it just came up with a blank screen. i turned off and on again and saw that the blue light flashed 5 times and then turned off. when i read up on this it said to change caps?? looked at the y main board and a few of the green 2A fuses needed replacing. so i did and i still get the 5 blinks and no picture. please help, thankyou
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    #2
    Re: Samsung PS42Q97HD

    What caps did you use?

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      #3
      Re: Samsung PS42Q97HD

      same values, they weren't cross tops, can't remember the make of them. just need to know which board it would be

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        #4
        Re: Samsung PS42Q97HD

        As long as they were low ESR they should work.

        Disconnect a board at a time from the PSU and switch the set on... check the standby led for the 5 blinks.... if still there turn the set off and reconnect the board... disconnect the next one and do the same until you dont have the 5 flashes.... that disconnected board will be your problem

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          #5
          Re: Samsung PS42Q97HD

          i did as you said. i unplugged the y main. it still had the 5 blinks, and the same when i unplugged the x main. then i unplugged what i believe to be the logic board. this didn't even power on the tv. so lastly i tried unplugging the control board and the tv turned on did the 5 blinks and then turned itself off. it then proceeded to turn itself back on and do the 5 blinks again. it kept doing this in like an infinite loop

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            #6
            Re: Samsung PS42Q97HD

            ??????

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              #7
              Re: Samsung PS42Q97HD

              If you used generic caps, you could have caused more problems than you originally had. Do not use generic caps. Panasonic FM/FR/FC are advised, generic Maplin special are not.

              I have only ever seen bad caps on the Y-main of these sets. Never PSU.
              5 blinks of LED is normal power up procedure.

              So check all soldering etc.

              Red sparklies are usually caused by misadjusted Yrr/Yfr.
              Please do not PM me with questions! Questions via PM will not be answered. Post on the forums instead!
              For service manual, schematic, boardview (board view), datasheet, cad - use our search.

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                #8
                Re: Samsung PS42Q97HD

                hmmm well these caps were blown all over on all three boards. looks like i'll just have to ber it. thanks for the help

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                  #9
                  Re: Samsung PS42Q97HD

                  http://postimg.org/image/alt7k2x4z/
                  that is the y main

                  http://postimg.org/image/fpdyebdmj/
                  the x main

                  http://postimg.org/image/uoqyi9y9h/
                  the psu

                  http://postimg.org/image/3ve3etwgj/
                  and what i believe to be the logic main. as you can see none of the caps are blown. hope this helps

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