Is it D203 and D205 that disable's the protection in the right channel??
Or does anyone know which 2 i lift to disable it??
Amp has distorted output on the right channel
Or does anyone know which 2 i lift to disable it??
Amp has distorted output on the right channel
Has the amp been previously repaired or is this how it came to you.
Just want some info before stating the obvious.
Just want some info before stating the obvious.
It had blown power supply fets with i changed ..
It also had both 540's blown in both channels which i changed along with the drivers for the outputs..
It also had both 540's blown in both channels which i changed along with the drivers for the outputs..
The right channel wont bias..
So its a bias issue..
I switched the MPS6521 I also switched Q208 and Q218..
with no luck..
where do i go from here?
So its a bias issue..
I switched the MPS6521 I also switched Q208 and Q218..
with no luck..
where do i go from here?
If you don't have any shorted or open source resistors or if you did, you must have some damage in the protection circuit.
I am assuming you metered the resistors in the area around the blown outputs?
Check the 1A and 2A transistors as well.
If there is a fault sometimes the bias wont set properly.
What resistance do you get from source to drain on each of the outputs?
Its likely a shorted diode marked 5D.
I am assuming you metered the resistors in the area around the blown outputs?
Check the 1A and 2A transistors as well.
If there is a fault sometimes the bias wont set properly.
What resistance do you get from source to drain on each of the outputs?
Its likely a shorted diode marked 5D.
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