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JVC Tv KV-X2172U , having shsh.. sound from inside tv

 
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PostPosted: Mon Oct 15, 2007 9:34 pm    Post subject: JVC Tv KV-X2172U , having shsh.. sound from inside tv Reply with quote

I have a Jvc Tv model KV-X2172U & the picture was not proper picture & it's having low shshshh.... sound from inside & when I opened the Tv & adjust the picture by adjusting the focus on the flyback transformer , the picture become proper & adjusted picture but the shshshsh.... sound became very loud & then the Tv turned off by itself , so plz helpme what could be the fault is it from flyback or from the board of the screen's tube ? help plz
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minnie



Joined: 18 Aug 2005
Posts: 2877
Location: Hell

PostPosted: Mon Oct 15, 2007 9:44 pm    Post subject: Reply with quote

I'd try the flyback. First discharge the anode cap by taking a screw drive w/insulated handle and hook alligator leads to the screw driver metal and ground strap around the CRT, pop the cap off. Put some RTV around where the caps sits, put the anode lead back on and let it cure. The sound you're hearing is high voltage. If the RTV doesn't work, replace the flyback and do the same thing again. If it still leaks it's a cad picture tube. You sure it's a JVC not a Sony?
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PostPosted: Wed Oct 17, 2007 4:23 pm    Post subject: Reply with quote

yeah I am sure it it is Jvc. So is it the flyback ? & if i change the flyback can the problem be solved ? what else problem can be solved & what's RTV ? help me with those wuestions plz.
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vtech



Joined: 08 May 2006
Posts: 1264
Location: USA

PostPosted: Wed Oct 17, 2007 8:41 pm    Post subject: Reply with quote

....KVX2172U is in fact a Sony brand TV (AE2A chasis) ---not JVC. & coincidently, there were reported problems w/screen control on the flyback which would cause a blank screen.
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PostPosted: Thu Oct 18, 2007 5:36 pm    Post subject: Reply with quote

So is it the flyback ? & if i change the flyback can the problem be solved ? what else problem can be solved & what's RTV ? help me with those questions plz . when i adjust the control ( fucus ) on the flyback the picture becomes perdect but the sound increases very loudly.
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Guest






PostPosted: Thu Oct 25, 2007 7:18 pm    Post subject: Reply with quote

So is it the flyback ? & if i change the flyback can the problem be solved ? what else problem can be solved & what's RTV ? help me with those questions plz . when i adjust the control ( fucus ) on the flyback the picture becomes perfect but the sound increases very loudly.
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minnie



Joined: 18 Aug 2005
Posts: 2877
Location: Hell

PostPosted: Thu Oct 25, 2007 9:31 pm    Post subject: Reply with quote

Why haven't you put RTV on or replaced the flyback yet??? You asked for answers and 2 were given. RTV will seal the CRT. If it still leaks the flyback could be bad. Or the picture tube.
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PostPosted: Sat Oct 27, 2007 5:42 am    Post subject: Reply with quote

Ok Thanks I will do that btu what am asking is can u plz tell me what RTV means ?? & what to do with it ?
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minnie



Joined: 18 Aug 2005
Posts: 2877
Location: Hell

PostPosted: Sat Oct 27, 2007 4:09 pm    Post subject: Reply with quote

RTV= Silicone.
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arturo011



Joined: 21 Oct 2006
Posts: 5

PostPosted: Tue Oct 30, 2007 4:01 am    Post subject: Reply with quote

my dear friend what minnie has said is right plz do it. but before doing that see that you discharge the picture tube by grounding one end of lead to the ground of the picture tube and the other end pushed into the EHT cap on the picture tube, or else u will end up gettin a nice shock.
After that try removing the EHT cap, clean it thoroughly and the portion near the cap of the picture tube, and use a hot blower to dry the remaining moisture. plz do not overheat the picture tube, just a light blow dry.
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