https://jestineyong.com Semiconductors, Test Equipments, Circuit Board Troubleshooting, Electronic Repair Courses and Many More! Sat, 21 Feb 2026 07:34:55 +0000 en-US hourly 1 https://wordpress.org/?v=5.4.19 https://jestineyong.com/pev-pro-kv-80-8-channel-mixer-repaired-after-catastrophic-failure/ https://jestineyong.com/pev-pro-kv-80-8-channel-mixer-repaired-after-catastrophic-failure/#comments Sat, 21 Feb 2026 07:34:54 +0000 https://jestineyong.com/?p=36909 Recently, I received a Pro KV-80 powered mixer from an international school here in Nairobi. The unit was completely dead — no signs of life. What followed was a layered repair process that reinforced several important amplifier troubleshooting principles. In this post, I’ll walk through the failure symptoms, diagnosis process, and final repair — with […]

The post Pev Pro KV-80, 8-Channel Mixer Repaired After Catastrophic Failure! first appeared on Electronics Repair And Technology News.]]> https://jestineyong.com/pev-pro-kv-80-8-channel-mixer-repaired-after-catastrophic-failure/feed/ 19 https://jestineyong.com/soundcraft-mixer-repaired/ https://jestineyong.com/soundcraft-mixer-repaired/#comments Fri, 30 Dec 2022 23:59:48 +0000 https://jestineyong.com/?p=28985             This musical mixer was brought to  my workshop dead by a church Pastor who happens to be my co- worker when I was a chef at Sheraton hotel in my country. He also had retired and now a pastor. I opened top cover which entails loosing so many nuts and […]

The post Soundcraft Mixer Repaired first appeared on Electronics Repair And Technology News.]]> https://jestineyong.com/soundcraft-mixer-repaired/feed/ 15 https://jestineyong.com/how-to-repair-mixer-power-amplifier/ https://jestineyong.com/how-to-repair-mixer-power-amplifier/#comments Fri, 26 Jan 2018 14:35:51 +0000 https://jestineyong.com/?p=16413                   The complaint of this UKC Mixer power amplifier was no power. The first component to check is the main fuse but it did not blow but the toroidal was very hot that it melted the plastic cover-see the photo below: What caused the transformer to overheat? […]

The post How To Repair Mixer Power Amplifier first appeared on Electronics Repair And Technology News.]]> https://jestineyong.com/how-to-repair-mixer-power-amplifier/feed/ 11 https://jestineyong.com/how-to-repair-avvox-mixer-amplifier-with-no-sound/ https://jestineyong.com/how-to-repair-avvox-mixer-amplifier-with-no-sound/#comments Fri, 15 Jul 2016 04:21:43 +0000 https://jestineyong.com/?p=12799                 The complaint of this Avvox Mixer Amplifier was no sound even when the Music and Mic volume control were set to almost half-see the photo below: The first thing I did was to remove the cover and power up the set and check on the Dc supply […]

The post How To Repair Avvox Mixer Amplifier With No Sound first appeared on Electronics Repair And Technology News.]]> https://jestineyong.com/how-to-repair-avvox-mixer-amplifier-with-no-sound/feed/ 11 https://jestineyong.com/rescue-of-a-sound-craft-mixer-epm8/ https://jestineyong.com/rescue-of-a-sound-craft-mixer-epm8/#comments Fri, 03 Apr 2015 12:57:13 +0000 https://www.jestineyong.com/?p=9270                         This Mixer was brought to me in dead condition by my friend. This was being used by his friend in US, and went dead with a sound. Since getting it serviced is a very costly affair there, it was brought to India and given […]

The post Rescue of a Sound Craft Mixer EPM8 first appeared on Electronics Repair And Technology News.]]> https://jestineyong.com/rescue-of-a-sound-craft-mixer-epm8/feed/ 30