I have a problem with +5VSB voltage regulation being slightly out of spec.
The PSU issues a single crackle noise when the PSU is powered off.
This noise appears to be coming from the switcher.
I am testing a number of components on the +5VSB rail to determine if ok.
The PSU has a TL431C shunt regulator
see further http://pdf1.alldatasheet.com/datashe...CS/TL431C.html
Is there an easy way to test this out of cct with a meter?
Any advice appreciated. Thanks
The PSU issues a single crackle noise when the PSU is powered off.
This noise appears to be coming from the switcher.
I am testing a number of components on the +5VSB rail to determine if ok.
The PSU has a TL431C shunt regulator
see further http://pdf1.alldatasheet.com/datashe...CS/TL431C.html
Is there an easy way to test this out of cct with a meter?
Any advice appreciated. Thanks