Question about Sony FD Trinitron WEGA KV-32FS120 32" TV

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Not displaying power is on but not displaying anything screen is black

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  • Master
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Let us be sure first if the power of your tv is on.
1.do you hear a sound coming from your tv?
2.is the remote sensor of your tv is responding once you press a button?
if the answer is yes then your tv is on!
to fix the problem, open the back cover of your tv.once it is open plug it to your wall outlet and power on.be carefull not to touch the live components of your tv..there is a small pcboard that is plug in to the end of the picture tube it is called the crt board or the cathode ray tube/tv color amplifier.At this board you can see the crt socket that connects the picture tube and the CRT board
the crt socket has labels on pins they are KR,KB,KR,and H1,H2.

Posted on Jun 03, 2010

  • Danilo Baraquiel
    Danilo Baraquiel Jun 03, 2010

    continuation of my answer, the H1 and 2 are the heater.The heater is the one responsible for lighting the screen...using your multitester,measure the h1and h2 pins.set your tester to ac range there must be an ac voltage signal of 3vac-8vac.If there is no voltage present,trace the connections of the h1,h2 pins there must be an open resistor on its path to the CRT socket..replace the resistor with the same value..The supply for the heater comes from the output voltage of the plyback..and so there is a possobility of plyback malfunction..try to replace them..tnx

    hope i help you....

    please vote for my help..


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Posted on Jan 02, 2017

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