Ok Sir,point noted .The 5532 is a really good opamp.
You would be wasting time and money if you did not do something about the capacitors first.
Well many has positively suggested to change caps,why wont it help?You're wasting time and money doing stuff with the capacitors, as well.
If these are surface-mount, you may not be able to do anything (for mechanical reasons).
I found other side of PCB and all caps are not SMD So can change the caps to better one.
An externally hosted image should be here but it was not working when we last tested it.
post DAC section-
An externally hosted image should be here but it was not working when we last tested it.
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Today l could investigate Yamaha 667 and found some details.
DAC section uses some nichicon VR(M) 10uf, some SMG(regular and KZ) and one fine gold series near DAC chip.Is that SMG from United chemi con capacitor?
Closer look-
I cant see ceramic caps.
Power caps are only 6800uf-
Now will changing to better nichicon (from VRM to other series) can improve it much?
please share your views.
Thanks.
DAC section uses some nichicon VR(M) 10uf, some SMG(regular and KZ) and one fine gold series near DAC chip.Is that SMG from United chemi con capacitor?
An externally hosted image should be here but it was not working when we last tested it.
Closer look-
An externally hosted image should be here but it was not working when we last tested it.
I cant see ceramic caps.
Power caps are only 6800uf-
An externally hosted image should be here but it was not working when we last tested it.
Now will changing to better nichicon (from VRM to other series) can improve it much?
please share your views.
Thanks.
Last edited:
I have a Yamaha HTR 3067 with BA4560 Opamps. I am planning to change them to LM4560, three of them. The coupling capacitors of 10uF to 4.7uF polyster ones and decoupling ones from 100uF electrolytics to 22 or 47V tantalums.
Replacing with LM4562
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