Hi 🙂
I have a B&K ST1400 power amp from the 90’s (?) that is exhibiting signs of it’s age, and it is outputting really low level - no where near where it used to be.
Someone who knows about this stuff a lot better than I do, recommended that I change the rail fuses.
Are these them?
http://jeffreyhayat.com/temp/bk.jpg
Thanks in advance.
I have a B&K ST1400 power amp from the 90’s (?) that is exhibiting signs of it’s age, and it is outputting really low level - no where near where it used to be.
Someone who knows about this stuff a lot better than I do, recommended that I change the rail fuses.
Are these them?
http://jeffreyhayat.com/temp/bk.jpg
Thanks in advance.
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General rules: replacing electrolytic capacitors in power and signal circuits, cleaning switches and regulators, checking soldering and contacts.
I appreciate the response, but that's not what I asked. 🙂
I am not asking for advice on how to fix it; I am simply asking if those are the rail fuses.
Cheers. 🙂
I am not asking for advice on how to fix it; I am simply asking if those are the rail fuses.
Cheers. 🙂
Yes, there are two rail fuses per channel. Check them for continuity with your meter. If one or both are blown,
there may be other problems in that channel (bad transistors, etc.) as well. If the fuses are ok, or if you
replace bad one(s), check for DC voltage at the amplifier outputs. If there is a large DC voltage present,
there are more problems that need repair. Do not hook up the speakers, because they will be damaged.
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