I was just told my HItachi 46UX50B needs a new high voltage transformer, but they want $500 to fix it. The tv is 10 years old...but I found a replacement part for it for $100. Anyone know how difficult it is to change that out? I'm very handy with everything, but never messed with tv's before. Thanks for any assistance!
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Re: Hitachi 46UX50B high voltage transformer issue
Hello Bour,Its not too Bad,You gonna need a Couple of Things,Solder Wick,And a Soldering Gun,As you Pull ooff the Back of the Set.Youll find Probley 8 Screws Holding the Deflection Module(that will be the One with The High Voltage Tranformer on it(IHVT)You will have to look good on the board for all screws.....The Red lead tha come out of the IHVT Push down and Turn it should Come loose,The follow the g2 Lead to a Screen focus Bluck and pull on it it will come loose from it Note wher this lead came from,Once you have the Board loose,Turn it over and Put the Solder wick on the Connections
and apply Heat,Solder will be sucked up by the Wick and you do this with each Conn,Till the IHVT is Loose(Note)Solderwick is available at Radioshack,Hope this Helps Perry
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do you smell something at the back of your tv. if yes and still hearing the continues cricking sound its your flyback transformer it has a leak a high voltage current is arching try to replace the flyback transformer.
that white line is a high voltage leak have you had this set serviced lately? one of the hv lines from the flyback transformer
is not seated or leaking you need a tech to find it not a safety issue just an anoyance
It is possible that you have some loose connections, but I have seen the relays in the power supply get to be intermitent and will not stay closed. Tapping lightly on the relays will usually tell whether or not they are bad.
jansen6pack- I am currently repairing the same tv, what I found is that the video pak is going.I have checked pricing and the unit is about 500 bucks,but if you take it to a repair shop they may be able to repair it or send it away for repair. It may be worth the estimate charge. cooltekFeb.18/08
TV's have a circuit that monitors the high voltage and shuts down the power if it senses something amiss.
On projection types, figure on just replacing the entire board that has the flyback transformer on it.
Hope ya fix it!
The steps that need to be taken on fixing this set start with the standby voltage requirement. Is it there? next is the low voltage loop from the transformer, also a requirement for the set to come on. ...accordianman