Vintagecasey
Well-Known Member
I posted this on the Kenwood area a few days ago but have gotten no response so I will maybe get one here? Okay continuing on with my (Kenwood kr9600) phono sections again phono 1 and phono 2 are completely different sections not the typical one section with a switch. 
(green is replaced) I replaced all of the electrolytic capacitors I've replaced all of the transistors. Phono 1, now works correctly now. After setting up a second turntable phono 2 has a problem and again all of these transistors and capacitors on phon02 were all original. I have a situation where for a second or two the volume will all of a sudden increase two times the volume, it's not a pop it's a increase in volume and then it will go back to normal. I have since replaced all of the electrolytics and all of the transistors on phono 2 and the problem remains. Again the Left channel volume doubles the right channel volume is at 0 for these few seconds. Looking for some assistance what could be an obvious problem or what suggestions are to check next. My next step is to check all other solder joints to make sure there isn't a cold solder joint. I've poked and prodded around on each of the resistors transistors capacitors just to see if maybe I can get it to make the noise by pushing on each component to see about a cold joint. No change. I've also tried to check all the ground points haven't found any problems with them yet but it is very intermittent. Again this only happens on phono 2, FM, phono 1, auxiliary and tape sections all work normally. Thanks for any assistance.
(green is replaced) I replaced all of the electrolytic capacitors I've replaced all of the transistors. Phono 1, now works correctly now. After setting up a second turntable phono 2 has a problem and again all of these transistors and capacitors on phon02 were all original. I have a situation where for a second or two the volume will all of a sudden increase two times the volume, it's not a pop it's a increase in volume and then it will go back to normal. I have since replaced all of the electrolytics and all of the transistors on phono 2 and the problem remains. Again the Left channel volume doubles the right channel volume is at 0 for these few seconds. Looking for some assistance what could be an obvious problem or what suggestions are to check next. My next step is to check all other solder joints to make sure there isn't a cold solder joint. I've poked and prodded around on each of the resistors transistors capacitors just to see if maybe I can get it to make the noise by pushing on each component to see about a cold joint. No change. I've also tried to check all the ground points haven't found any problems with them yet but it is very intermittent. Again this only happens on phono 2, FM, phono 1, auxiliary and tape sections all work normally. Thanks for any assistance.