All posts by Jestine Yong

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  Restored A Tampered And Spoiled KREFT Valve Radio

  Those of you who have missed by earlier article published on 7th June, 2018 may please visit this link: Servicing Kreft Valve Radio | Electronics Repair And Technology News (jestineyong.com) This radio was brought to me with...

  • Posted August 27, 2021
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  Cracked Unknown PWM Replaced By Universal Module In Pressure Monitor SMPS

  One of the technicians brought the SMPS alone, of this pressure monitor, picture of which was shared by him through whatsapp upon my request. The SMD PWM IC had cracked and we could not trace out its...

  • Posted August 21, 2021
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  Smoke Alarm Repair

                A 40-year-old mains powered smoke alarm started occasionally triggering without smoke and the prime suspect (other than dust) was the main 4.7 μF 50V electrolytic capacitor. The capacitor was checked...

  • Posted August 21, 2021
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  Moto G 3rd Gen Mobile Repaired For Ringer/Speaker Not Working

              Received call from the customer referred by my friend for Mobile ringer tone not working. Customer handed over the mobile at my place. By physical condition it seems like someone had...

  • Posted August 21, 2021
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  Olik Amplifier Right Channel No Sound Repaired

  Customer sent to me this Olik brand Amplifier with the complaint of right channel don’t have sound. I have tested it and it was true that the left channel was working and the problem was in the...

  • Posted August 16, 2021
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  Saved Two More ATX SMPS From Dump

                I request you to refer to my previous article of July, 2018 in connection with the above SMPS : 14 Bad Components Found In Intex SMPS Model Smart IT-2045S+ (Unbelievable)...

  • Posted August 16, 2021
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  Heating Up and Shutting Down Problem In Massage Device Repaired

              A massage therapist brought his device for repair and explained that it keeps shutting down and he cannot hear the fan spinning. I have worked on this device before and now...

  • Posted August 16, 2021
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  Assembled A 555 Based Timer For Water Boiler

                We have an assembled water boiler in our house. This was made many years back, when I was working in BPL and staying in Bangalore. A stainless steel vessel was...

  • Posted August 4, 2021
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