Electronics Repair FAQ 17

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6 Comments

1. 

   dodit

   December 3, 2011 at 7:13 am

   Dear Justine

   I have some problem at Changhong Model 14B24EA Television,the problem is no output voltage at Acmatic,all of component in Acmatic I have replace but no effect at all.Can you help me please,thanks very much

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2. 

   Solikin

   December 3, 2011 at 11:03 am

   Dear Justine,

   I have problem of Akari tv model14M78V this tv if I turn on recurring life and death as protected whereas all normal output voltage acmatic what's the solution?
   thanks very much

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3. 

   admin

   December 4, 2011 at 8:55 am

   HI Dodit,

   Try the link below to isolate the problem:

   http://www.scribd.com/doc/2957819/TT204-Identifying-television-SMPS-problems

   Jestine

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4. 

   admin

   December 4, 2011 at 8:57 am

   HI Solikin,

   May i know what do you mean by life and dead in the tv? Could you elaborate?

   Jestine

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5. 

   joseph

   November 4, 2015 at 12:52 pm

   Hello admin

   I have a China tv which has all the secondary power outputs lower than normal. When I press the power button, the LED only blinks once. What could be the problem?.

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   • 

     Jestine Yong

     November 4, 2015 at 5:34 pm

     HI Joseph,

     Have you check the components in the regulation circuit such as the Optoic and the tl431 ic? What about the low ohm resistor in the power primary side. and also the e-caps you need to check.

     Jestine

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