I have a Sony TA F555 ES amp I'm trying to diagnose to either repair myself or determine whether it would be worth bringing to a repair shop.
There are four 2SC2922 NPN power transistors attached to the large heat sink on the back of the unit. All 4 are smoking, some have burned through the center of the chip.
Any ideas of why the chips are failing? I presume there is another problem that needs repair before these power transistors are replaced.
|All times are GMT. The time now is 09:17 AM.|
vBulletin Optimisation provided by vB Optimise (Pro) - vBulletin Mods & Addons Copyright © 2017 DragonByte Technologies Ltd.
Copyright ©1999-2017 diyAudio