Author Topic: samsung ps42q7hdx  (Read 4352 times)

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billy no mates

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samsung ps42q7hdx
« on: January 31, 2012,16:29:49 »
hi
 
i have a samsung ps42q7hdx which originally had the slow to turn on and clicking relay replaced all but the three big caps on p/s and it turns on
but with this fault http://youtu.be/jVYCcsqB1yY  so i started by testing all voltages from p/s and all fine so then i disconnected all other boards from power supply except the main and no difference the video above is of whats happening on screen and you can hear a bit of a melody repeating coming from the TV the video is taken with all boards connected ....also tried different input eg: hdmi,scart and dtv same thing on screen  as in video above except you have sound from the input selected for a couple of seconds then you hear the same melody as in the video then the sound from the input selected and then the melody and so on 

any ideas guys

thanks in advance

billy  :c017:

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