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Electronics Repair (sci.electronics.repair) Discussion of repairing electronic equipment. Topics include requests for assistance, where to obtain servicing information and parts, techniques for diagnosis and repair, and annecdotes about success, failures and problems. |
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Is 130Deg F on the heatsink too hot for a HiFi amp ?
I've got a "better" Sony receiver/amp that's working fine. I recently connected the audio from a PC sound card to the AUX input ond it sounds great. I've been listening to Internet Radio and my MP3s but I've noticed that for what seems to be the same listening level the amp runs much hotter (30DegF) when run from the PC signal source, compared to the other external inputs. A thermometer in contact with the HS reads 130Deg F. Is This too hot ? When I first hooked the PC up I got an audible 68Hz hum. A Radio Shack transformer made for ground loop elimination eliminated it, which also isolated any DC offset. Any suggestions ? -- Al Dykes ----------- adykes at p a n i x . c o m |