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Require a circuit Diagram for National Colour TV Model TC-430M or similar , because there is sound but no image the screen is dark , i tried to wrap a wire around the flyback but still nothing can anyone hlep please?

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National CRT TV TC-1400M Circuit diagram


If you wish to get some details; check the site linked here. Pull up older posts. Surf the site with patience.
http://electro-medical.blogspot.com/
http://electronicshelponline.blogspot.com/
Circuit diagrams many popular brand devices are given.

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Good day!!!!


Commonly that trouble is cause of faulty capacitors on power supply board...

Please follow this step on how to fix that problem on your own..
  1. Open the back cover of your TV.
  2. Look at the power supply board..Its normally connected to the power cord..
  3. After that,,try to look at the actual image of capacitors if it is bulged on the top so that you can easily determine the bad capacitors..
  4. After that,,try to replaced the bad capacitors using soldering iron and soldering lead..replaced the capacitors only with the same type ratings and value..
  5. Some of the capacitors not bulged so its better if have a capacitance meter..

I hope this solution will be helpful...

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It wouls appear one of the backlights in the screen is cutting out, this will require the screen to be replaced although in certain circumstances, depending on the age & model of your TV, it is sometimes possible to change the faulty backlight independantly. Take it to a repair centre to get an anaylisis of the type of screen it has.

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Dear Sir,

According to your request i am providing download link
Circuit diagram for Grundig 5441 tv. If you have any problem regarding this issue come back with more information about the problem,we will glad to assist you



Preview

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in PDF format download High resolution complete Circuit Diagram
Download Circuit Diagram

Thank you for choosing fixya

Good Luck

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