This unit is about 6 years old and its trouble dates back some 6-8 months. I do not have a schematic or service manual for it.
Upon initial cold startup: All channels (speakers) mildly motorboat followed by a decaying static which ceases in about 5 minutes. However, the audio remains somewhat distorted for about
10 minutes after which the unit operates normally. Trouble is independant of input or source and occurs through all 5 speaker loads.
My thoughts are something common to all amp channels especially electrolytic decoupling capacitors. This unit has always produced more than its share of heat so I know electrolytics would suffer somewhat. I know the 703 is similar to other Onkyos of that vintage so I am hoping someone out there has experienced this trouble with an Onkyo. I do not want to replace this receiver since it has phono inputs and analog tape input which is rare in todays market.
Thanks, Tom
Upon initial cold startup: All channels (speakers) mildly motorboat followed by a decaying static which ceases in about 5 minutes. However, the audio remains somewhat distorted for about
10 minutes after which the unit operates normally. Trouble is independant of input or source and occurs through all 5 speaker loads.
My thoughts are something common to all amp channels especially electrolytic decoupling capacitors. This unit has always produced more than its share of heat so I know electrolytics would suffer somewhat. I know the 703 is similar to other Onkyos of that vintage so I am hoping someone out there has experienced this trouble with an Onkyo. I do not want to replace this receiver since it has phono inputs and analog tape input which is rare in todays market.
Thanks, Tom