Hi,
i Upgraded my NAD C352 with a 356Bee some days ago. The Amp worked absolutely fine and the sound improvement was even a bit more than i had expected.
As i opened it up to clean the inside from dust and get a short overview of the board i immediately saw blewed up a shunt regulator sitting there.
The Regulator ia an AZ431BZ-BE
Unfortunetly that regulator isnt existing anymore.
The only ones i could find were
AZ431BZ-ATRE1
AZ431AZ-ATRE1
As i understood, the AZ or BZ Versions differ in the entrance Voltage tolerance of 0.4 -0.8%
Also the others go from 2,5 up to 36v instead of the Original BZ-BE 2,5 to 18v
So my question is one of these, the right regulator to exchange the blown up one?
If i just can get the 2,5 to 36v Versions is an exchange enough or do i have to regulate something after because of the larger range?
Thanks for any help!!
cheers
i Upgraded my NAD C352 with a 356Bee some days ago. The Amp worked absolutely fine and the sound improvement was even a bit more than i had expected.
As i opened it up to clean the inside from dust and get a short overview of the board i immediately saw blewed up a shunt regulator sitting there.
The Regulator ia an AZ431BZ-BE
Unfortunetly that regulator isnt existing anymore.
The only ones i could find were
AZ431BZ-ATRE1
AZ431AZ-ATRE1
As i understood, the AZ or BZ Versions differ in the entrance Voltage tolerance of 0.4 -0.8%
Also the others go from 2,5 up to 36v instead of the Original BZ-BE 2,5 to 18v
So my question is one of these, the right regulator to exchange the blown up one?
If i just can get the 2,5 to 36v Versions is an exchange enough or do i have to regulate something after because of the larger range?
Thanks for any help!!
cheers
Last edited:
It should suffice to just replace it with either one of those two types, assuming nothing else got damaged. The feedback network and the internal voltage reference, which is 2.5 V for both the original and the replacement parts, determine the actual voltage, so there is no need to adjust anything.
