Morning all.
It pains me to post this here as I took my time on this one as I knew it's a complex built. I was hoping to beat @MichaelW to a build report but we both hit problems at the same time. He got a new board and got it working. I'm persevering with mine thought as I want to know what I have done or not done!
So before I loose my patience and or my mind and start ripping things off the board I thought I would ask around on here. I know there are some very accomplished builders and some total recall experts here!
Firstly I have checked values. Cleaned the board. And started an audio probe.
Going from the main audio schematic it's all good. I get a squeal on pin 3 of IC3 not sure if that's an issue.
Audio stopped at C14 so I replaced that and it's fine now. All the way to D in. After that nothing.
I her audio on pin 3 and 4 of IC6 but no delay at all.
Looking at my voltages everything looks good apart from IC4. I get nothing at all ok the right hand side.
I also get no voltage at pin 7 of IC7. Could this be related to the issue at IC4?
My thoughts is a bridge or issue in the socket for IC4. Before I take it off does this sound like it might be the issue?
Any thoughts and suggestions very very very welcome!
I cant seem to attach pictures. Please tel me how!!
Phil
It pains me to post this here as I took my time on this one as I knew it's a complex built. I was hoping to beat @MichaelW to a build report but we both hit problems at the same time. He got a new board and got it working. I'm persevering with mine thought as I want to know what I have done or not done!
So before I loose my patience and or my mind and start ripping things off the board I thought I would ask around on here. I know there are some very accomplished builders and some total recall experts here!
Firstly I have checked values. Cleaned the board. And started an audio probe.
Going from the main audio schematic it's all good. I get a squeal on pin 3 of IC3 not sure if that's an issue.
Audio stopped at C14 so I replaced that and it's fine now. All the way to D in. After that nothing.
I her audio on pin 3 and 4 of IC6 but no delay at all.
Looking at my voltages everything looks good apart from IC4. I get nothing at all ok the right hand side.
I also get no voltage at pin 7 of IC7. Could this be related to the issue at IC4?
My thoughts is a bridge or issue in the socket for IC4. Before I take it off does this sound like it might be the issue?
Any thoughts and suggestions very very very welcome!
I cant seem to attach pictures. Please tel me how!!
Phil