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What is the vertical ic of changhong 21A500PH & where can i buy it?

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It's LA78040, and you can buy it from any electronics store.

Posted on Feb 11, 2013

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How to connect dvd player to changhong tv Model ud42yc5500ua


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Whic is vertical driver ic and which is vertical processor ic in ny tv... Main ic LA76810 and vertical ic 78040... whic is processor and which is driver ic


LA 76810 is the processor-chroma- oscillator jungle & 78040 is the vertical IC. Refer its schematic for more details. If you wish to get some details; check the site linked here. Pull up older posts. Surf the site with patience. http://electronicshelponline.blogspot.com/

Feb 01, 2015 | Televison & Video

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25pt4323/56rverticalproblom &shutdown


• Troubleshoot Vertical Circuits and shutdown will follow.

• Check for cold solder joints on the Vertical IC

• Check capacitors and associated components

here is your guide in finding the Vertical IC:


Standard Televisions

Sep 10, 2012 | Philips 27PT5441 27" TV

1 Answer

My sony tv model no. kv-ha21m80 is on standby mode & its LED is blinking four times that means it has some problem in vertical section.But when I tried to check voltages of its vertical IC AN5522


Disconnect Vertical supply and so that your Horizontal system run check all voltages before connecting vertical again ...should the protection come in again when vertical connected ...replace Vertical Ic and safety resistor in line

Apr 21, 2012 | Televison & Video

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Thin vertical line, high tension problem ? IC location?


Check the picture below to find the vertical IC. The markings on the body are: LA7837.


5e82824.jpg

Mar 06, 2010 | Hitachi 32UX59B 32" TV

1 Answer

My videocon 29'' showing a bright horizontal line in center of screen after 2-3 min of start up, & full picture will not come


this we call vertical problem need to resolder vertical ic or to check on vertical side is there 24vdc supply is coming to ic

Jun 07, 2009 | Televison & Video

1 Answer

I have a toshiba TP55C81 projection TV. The red The red vertical adjustments stopped working. The adjustmnet knob in the control panel does not effect the adjustment and none of the vertical adjustmen


You need to replace the vertical STK convergence chip but I would recommend that you replace the horizontal chip at the same time as this is likely to fail soon.

The following relates to the repair I have recently carried out to my Toshibal 40WH08B rear projection TV but shuold be very similar to your model. Replace the STK chips with the same type on your model:

On the convergence board PB 9487 (the one with the 2 large heat sinks that the r, b & g guns plug into) you will see two STK392-110 ics connected to the large heat sinks. Replace both of these and readjust convergence in service mode if necessary.

I obtained the replacement ics from Charles Hyde & Sons Ltd (see link below). I ordered the general ics not the Toshiba ones as these are identical as far as I could see and they cost £17.19 each instead of £36.68 each.

http://www.chsinteractive.co.uk/search.html?query=stk392-110

You will need to desolder the heat sinks as well as the ics as access to the ic mount screws are obstructed by the conv.dig board (metal cased). Buy a good quality desolder pump if you dont have one.
One last thing I should mention. The white paste between the ics and the heatsink is silicon thermal compound. Without this the heatsinks will not take heat from the ics effectivly and the ics will burn out! I recommend that you clean all of the old paste off the heatsinks and apply new to the whole of the metal plates on the back of the ics before you screw them to the heatsinks. You can get the thermal compound and the desolder pump from the same supplier I recommended for the ics.

Let know if your are having any problems.

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I have a philips 9p6044. where can I buy convergence ic's and a


its far more likely that you need a new Vertical output IC. The convergence ICs wouldnt prevent the picture. When you have audio but no video it is often meaning vertical failure. Try replaceing the vertical IC

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Sound like the vertical deflection circuit is defrctive. Check for cold solder around the vertical IC, Check the Diode and cap that supply power to the Vertical IC. If it still do not work, change out/ replace the virtical IC.

Jerome

Dec 21, 2007 | Computers & Internet

1 Answer

Vertical 1 line


Check voltage supply at vertical amp ic ,if present than change vertical amp ic.Some times supply line is dameged by faulty amp ic.therefore you have to rctify supply and replace ic.Check supply line fusible resistors.
gopal

Dec 13, 2007 | Televison & Video

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