All posts by Jestine Yong

• About Transistor

  Hi Jestine, How to figure out wheter it is a PNP transistor or NPN ? Answer: You have to read the part number and refer to the data book or from internet search. For more information about...

  • Posted May 8, 2008
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• The Basic Electronic Repair Course

  Do you still remember from my previous blog post about an ex-policeman that was interested in electronic repair? Yes, in fact today i have just completed the basic electronic repair course for him alone. I don’t mind...

  • Posted May 7, 2008
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• CRT Monitor Display Shrinked At Both Sides

  Dear Jestine, Thanks for the repair newsletter you’ve sent to me. How are you? Hope you’re having a good day and the business is always in a right track. My dear friend I want to consult a...

  • Posted May 7, 2008
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• About Varistor

  Hi Jestine, I have here TLS-5(Telephone Line Simulator), 110V input but accidentally I plug this in 220V, then busted. I opened the cover and found out the component color in red with label RV1 is busted/burned. Can...

  • Posted May 7, 2008
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• Basic Signal Measurement Using Oscilloscope

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  • Posted May 6, 2008
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• Why HOT Always Burnt?

  Hi Jestine, Thanks one more…. I have a question, why HOT are always burn (or what is the cause for burning hot)? what component is causing the hot to burn? Henjo Hi Henjo, Please check out my...

  • Posted May 6, 2008
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• Another Question

    “I have a question regarding the subwoofer repair.My sub woofer had a 13V1.8A transformer.Can I replace it with a 12V 2A transformer.The model is mercury SW980”-Santhosh Hi Santhosh, You can try as the amp is higher...

  • Posted May 6, 2008
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• Posting Support Questions In My Blog

  I do received lots of technical questions either from my ERG members, buyers or even from new visitors. I have decided to post only selected questions and answers to this blog. If you have the answer for...

  • Posted May 5, 2008
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