I'm rebuilding my 400 s2 using the full suite from White Oak. After nearly a year of intermittent tinkering and some intense trouble shooting over the last few weeks, I was finally rewarded with the clarity and precision I've read so much about.....almost.
The left channel plays normally. The right channel is attenuated or, otherwise, at a noticably lower volume than the left. It's maybe 15-25% lower AND begins to clip, or distort by some other means, at approximately 50% volume. It seems to sound okay but I haven't done any critical listening.
I could really use some direction on where to look next for, what I hope is, the last issue I'll face during this project.
I have not done any testing other than swapping input channels and speaker connections to be sure this problem isn't something external.
I am firmly in the amateur stages of this hobby and would really appreciate any assistance this group can provide. I have, and can effectively use, a DMM. I also have a Tektronix 2246 Oscilloscope that I purchased to help figure out that I'd improperly wired the potentiometers. I barely know how to use this scope but I am able to produce a wavy line most of the time.
I've checked and adjusted bias for both channels. I measure 390 between B+ Bias and Ground. Between B- Bias and Ground I get 350. This doesn't seem right to me but I'll defer to this group.
I'm very confident, albeit not 100%, in my component placement on all three boards and in my wiring simply due to the amount of time I spent reviewing each and every component during previous troubleshooting exercises.
I don't know where to look next or even what to look for. Any help or advice you all can offer would really be a big help and very much appreciated.
I apologize if this has been covered in another thread, I have not taken the time to look as time has become a factor. I could probably figure this out eventually but I've had electronics spread across my living room for 3 months longer than the 3 days I promised my wife.
The left channel plays normally. The right channel is attenuated or, otherwise, at a noticably lower volume than the left. It's maybe 15-25% lower AND begins to clip, or distort by some other means, at approximately 50% volume. It seems to sound okay but I haven't done any critical listening.
I could really use some direction on where to look next for, what I hope is, the last issue I'll face during this project.
I have not done any testing other than swapping input channels and speaker connections to be sure this problem isn't something external.
I am firmly in the amateur stages of this hobby and would really appreciate any assistance this group can provide. I have, and can effectively use, a DMM. I also have a Tektronix 2246 Oscilloscope that I purchased to help figure out that I'd improperly wired the potentiometers. I barely know how to use this scope but I am able to produce a wavy line most of the time.
I've checked and adjusted bias for both channels. I measure 390 between B+ Bias and Ground. Between B- Bias and Ground I get 350. This doesn't seem right to me but I'll defer to this group.
I'm very confident, albeit not 100%, in my component placement on all three boards and in my wiring simply due to the amount of time I spent reviewing each and every component during previous troubleshooting exercises.
I don't know where to look next or even what to look for. Any help or advice you all can offer would really be a big help and very much appreciated.
I apologize if this has been covered in another thread, I have not taken the time to look as time has become a factor. I could probably figure this out eventually but I've had electronics spread across my living room for 3 months longer than the 3 days I promised my wife.
