davros
Active Member
Latest update.
Replacing Q5 and on the Supply board did the trick. All my voltages have returned to normal on the power supply board.
Relay clicks in roughly 4 seconds.
After 15 min warm up I spent another 30 minutes obsessively working on Offset and Bias. Offset is now steady at .1mV on both channels. Bias is at 20.1mV on both channels.
I put her back together and spent 20 minutes on the radio with no issues.
Switching to Phono 1 is giving me some crackle and pop (both speakers), and going back to FM I lost the right channel.
I shut down and worked all the controls and levers and had right speaker back when I powered back on
Jiggling the stereo/mono switch seems to increase the popping on Phono.
I'm going to work the switches tomorrow, and if necessary I'll need to go back in to clean the switches further. I really gave it to those switches the first 2 times, so I'm hoping exercising them does the trick.
I also should have the new relay today, I may put it in and hit the controls again anyway.
I'm in the home stretch, and while not done, I can see the light at the end of the tunnel. I will continue reporting back, until it is running perfectly.
This has been time consuming, and for those following, its been a month long process.
I will also post a lessons learned, and a conclusion.
As this is my first Solid State rebuild, maybe I can part some of my meager knowledge on to someone who has been holding back from starting their own Pioneer.
I've certainly learned a large amount from the forums, and while it may have seemed I moved ahead without reply's at some times, its because my answers were found somewhere else on the forum.
Replacing Q5 and on the Supply board did the trick. All my voltages have returned to normal on the power supply board.
Relay clicks in roughly 4 seconds.
After 15 min warm up I spent another 30 minutes obsessively working on Offset and Bias. Offset is now steady at .1mV on both channels. Bias is at 20.1mV on both channels.
I put her back together and spent 20 minutes on the radio with no issues.
Switching to Phono 1 is giving me some crackle and pop (both speakers), and going back to FM I lost the right channel.
I shut down and worked all the controls and levers and had right speaker back when I powered back on
Jiggling the stereo/mono switch seems to increase the popping on Phono.
I'm going to work the switches tomorrow, and if necessary I'll need to go back in to clean the switches further. I really gave it to those switches the first 2 times, so I'm hoping exercising them does the trick.
I also should have the new relay today, I may put it in and hit the controls again anyway.
I'm in the home stretch, and while not done, I can see the light at the end of the tunnel. I will continue reporting back, until it is running perfectly.
This has been time consuming, and for those following, its been a month long process.
I will also post a lessons learned, and a conclusion.
As this is my first Solid State rebuild, maybe I can part some of my meager knowledge on to someone who has been holding back from starting their own Pioneer.
I've certainly learned a large amount from the forums, and while it may have seemed I moved ahead without reply's at some times, its because my answers were found somewhere else on the forum.