Comments on: Return Of Panasonic RX-M70M2 Two-In-One With Mains Transformer Failure https://jestineyong.com/return-of-panasonic-rx-m70m2-two-in-one-with-mains-transformer-failure/ Semiconductors, Test Equipments, Circuit Board Troubleshooting, Electronic Repair Courses and Many More! Fri, 18 Jun 2021 15:32:24 +0000 hourly 1 https://wordpress.org/?v=5.4.19 By: Parasuraman S https://jestineyong.com/return-of-panasonic-rx-m70m2-two-in-one-with-mains-transformer-failure/comment-page-1/#comment-375118 Fri, 18 Jun 2021 15:32:24 +0000 https://jestineyong.com/?p=25406#comment-375118 In reply to Waleed Rishmawi.

Hi, dear! Kindly read my response to Albert van Bemmelen above. Highvoltage surges knocks off these transformers. Anyhow no fireworks like in your welding machines! (LOL) Many thanks for your comments!

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]]> By: Parasuraman S https://jestineyong.com/return-of-panasonic-rx-m70m2-two-in-one-with-mains-transformer-failure/comment-page-1/#comment-375117 Fri, 18 Jun 2021 14:45:34 +0000 https://jestineyong.com/?p=25406#comment-375117 In reply to Albert van Bemmelen.

No, dear! Not at all! The load is taken by the 7805 IC and the module draws only very negligible current. These things happen due to very bad power fluctuations! The other day, suddenly the 230V AC shot upto 300V. Many home appliances in many houses got damaged. It was because of wind and rain that uprooted big trees. Though the surge was momentary, before the power got shut down, that was enough to cause damages. Secondly, bigger transformer will never fit in that place! Many thanks for your observation and comments!

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]]> By: Waleed Rishmawi https://jestineyong.com/return-of-panasonic-rx-m70m2-two-in-one-with-mains-transformer-failure/comment-page-1/#comment-375113 Fri, 18 Jun 2021 09:23:36 +0000 https://jestineyong.com/?p=25406#comment-375113 wow, that is a well burnt dark transformer... what caused that? was the original transformer has the same specs of the modified one? any way, good job on the repair and have a blessed day

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]]> By: Albert van Bemmelen https://jestineyong.com/return-of-panasonic-rx-m70m2-two-in-one-with-mains-transformer-failure/comment-page-1/#comment-375108 Fri, 18 Jun 2021 05:02:00 +0000 https://jestineyong.com/?p=25406#comment-375108 Is it maybe possible that the previously added modifications that obviously use more current maybe overheated the original transformer that apparently was unable to handle the extra power needed at the given max 7.5V 1A? Why they also use to say to buy a bigger audio amplifier with a larger transformer even if we only use normally just the half audio output power at max to be sure it never breaks down for those reasons.

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