Question about Panasonic PT-47WX49 47" Rear Projection Television

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NO Power My TV has no power. I Already change the regulator trasistor and nothing happens. once you turn the set on, the relay is very noisy it always chatters but still no power.

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Http://home.earthlink.net/~oleg.filippov/ConvergenceFix.htm
http://cmpalmer.blogspot.com/2006/11/fixing-my-own-tv-part-ii.html

Posted on Jan 10, 2008

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Posted on Jan 02, 2017

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1 Answer

AC plug connection fails some times.


Fault with the main power supply regulator board. Check and replace damaged component/s at its main power regulator [SMPS] section circuit. Contact any service technician. If you wish to get some details; check the site linked here. Surf the site with patience. Pull up older posts.
http://electronicshelponline.blogspot.com/
It will be best to replace the power supply regulator board as card basis rather than making "Surgery" to it; which usually will make loss for both money and time.

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1 Answer

My tv wont turn on when i press the power button on the tv ?


Fault with the main power supply regulator board. Check and replace damaged component/s at its main power regulator [SMPS] section circuit.Contact any service technician.If you wish to get some details; check the site linked here.Surf the site with patience.Pull up older posts.
http://electronicshelponline.blogspot.com/
It will be best to replace the power supply regulator board as card basis.

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1 Answer

I realized my Sanyo tv post may have been confusing.


There always is the possibility that the replacement power board is defective.

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My LG TV MOD. CF-20D16 AFTER 10 MINUTES TURNS OFF THEN THIS TIME BECOMES SHRTER I HAVE CHANGED THE Cs IN POWER SUPPLY(small size) NO EFFECT I THINK HV POWER TRASISTOR GETS HOT.YOUR SOLUTION REFERS TO


Only regular sets and older projection sets have that transistor---if you changed or had bad caps in the power supply it may be the issue.
10_31_2012_11_58_52_pm.jpg

Oct 31, 2012 | Televison & Video

1 Answer

Visio VP504 fhdtv10a - When I plug it in, it has an amber logo light and makes a click noise (like a relay). When I press the power button nothing happens.


These are problems gradually developed in TV over the years. You may have to look for any dry solder, change the capacitors that look 'puffy' and try.

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1 Answer

The remote turns on green light at the bottom, tv not on. Manually pushing button does nothing.


Most likely you have a shorted diode and transistor at the on/off relay inside the set. The trasistor is a small suface mount and the diode is a top mounted device. This should not be a real expensive repair. Take it to a repair shop. These parts are very small.

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1 Answer

SONY KV34HS510 always worked perfectly but today it wouldn't turn on by remote or button on TV. It makes the same "click" sound which it always did before coming on but it just immediately clicks again to...


You need to bring it to a TV technician. There is a relay inside the TV which can be blocked by any few errors that may occur in your TV, for protection. Only a tech may discover the problem.

May 25, 2009 | Televison & Video

1 Answer

Sony tv will not turn on


the power supply is a switched mode. you need to take your tv to a w/shop, and let them check the following.
powersupply rectifier diodes, power trasistor lekage,
diodes, zener diodes,
if a 90-110 volts to the line trasistor,
a line transistor be checked.
the tv simple problem

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1 Answer

Samsung TXG2547 25"inches TV problem


you have damage your tv micro chip, regulator ,or horizontal output with static current when you plug out your tv from th plug,what is clicking is the relay trying to power up your tyv but due too the damage it cannot power have a tech repair your tv good luck

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