Comments on: About Shorted Transistor https://jestineyong.com/about-shorted-transistor/ Semiconductors, Test Equipments, Circuit Board Troubleshooting, Electronic Repair Courses and Many More! Mon, 22 Feb 2010 22:13:26 +0000 hourly 1 https://wordpress.org/?v=5.4.25 By: admin https://jestineyong.com/about-shorted-transistor/comment-page-1/#comment-4736 Mon, 22 Feb 2010 22:13:26 +0000 https://www.jestineyong.com/?p=2622#comment-4736 Hi Jaya,

It is all in my ebook http://www.TestingElectronicComponents.com

Jestine

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]]> By: jayarathna https://jestineyong.com/about-shorted-transistor/comment-page-1/#comment-4734 Mon, 22 Feb 2010 20:24:58 +0000 https://www.jestineyong.com/?p=2622#comment-4734 cheking transister photos

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]]> By: admin https://jestineyong.com/about-shorted-transistor/comment-page-1/#comment-4646 Sat, 13 Feb 2010 14:30:38 +0000 https://www.jestineyong.com/?p=2622#comment-4646 Hi Rey,

That was a good write up and base on your description, you seems to be good in troubleshooting (tracing the circuit). Keep up the good work and thanks for sharing.

Jestine

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]]> By: Rey https://jestineyong.com/about-shorted-transistor/comment-page-1/#comment-4645 Sat, 13 Feb 2010 14:17:59 +0000 https://www.jestineyong.com/?p=2622#comment-4645 Actually sir justine this power transitor was not use as a HOT in the monitor circuit it is use as transistor pincushion I have monitor brought in with Horizontal size problem so what I did I followed your book in Bonus Voltage testing by pressing the plus and minus key to solve the problem luckyly I found the ic thats controlling the size and there on I followed 8 pin IC (6358B)High Performance dual amplifier) pin One is the Vout and I trace all the way down and found this transistor to be shorted since it is not available in our area I ask somebody to buy outside town but the Transistor that he bought is mark c5248 but when I test it with the sanwa analog tester it turn out to be PNP so again I search the net and found out the C5249 is the same transistor except the power is higher so I grab a chance and bought it and test it before installling and the problem was solve the horizontal size is now back to normal and you can adjust it.

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]]> By: admin https://jestineyong.com/about-shorted-transistor/comment-page-1/#comment-4636 Sat, 13 Feb 2010 00:53:38 +0000 https://www.jestineyong.com/?p=2622#comment-4636 HI REYNALDO,
How do you test the HOT. You test the HOT with analog or digital meter and what is the brand of the meter. The reason i ask is because some meter especially the analog type have a reverse output.

Jestine

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]]> By: Reynaldo Chua https://jestineyong.com/about-shorted-transistor/comment-page-1/#comment-4620 Fri, 12 Feb 2010 02:59:27 +0000 https://www.jestineyong.com/?p=2622#comment-4620 There was one time I bought a C5248 power Transistor but when I test it with my analog meter it turn out to be a PNP transistor I was surprise I did not believe that sometime big Transistor manufacturer do makes a mistake. So it is really wise to check first before installing the new parts.

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