Hey guys, does anyone have a schematic or familiarity with this amp for the practical component part numbers; transistors U4 & U5, IC U12, those are primarily for the sub (5th) channel.
U101, U301, U401 are for the full main channels, an IC is in one of the full main channel but the legend is under I’m guessing U201 (IRS2092S) but I’m not sure if it’s the original and applies for the missing ones.
The tech before me removed and misplaced the missing parts. The amp is with me so if other picture angles are needed that can be done.
U101, U301, U401 are for the full main channels, an IC is in one of the full main channel but the legend is under I’m guessing U201 (IRS2092S) but I’m not sure if it’s the original and applies for the missing ones.
The tech before me removed and misplaced the missing parts. The amp is with me so if other picture angles are needed that can be done.
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Any suggestions, Anyone?
Could the IRS2092S be the driver for the IRF540 outputs on the full main channels?
The U4 & U5 are rail feeders +/- for the IRS2092S, what I don’t know if they are just BJT or special Regulators N/P type.
The U12 is daisy changed to the rest of opamp which are all 4558 (could it be the same)?
Could the IRS2092S be the driver for the IRF540 outputs on the full main channels?
The U4 & U5 are rail feeders +/- for the IRS2092S, what I don’t know if they are just BJT or special Regulators N/P type.
The U12 is daisy changed to the rest of opamp which are all 4558 (could it be the same)?
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I'm wrong.
It appears to have ±5v regulators. Look at the following file on and near page 29.
http://www.bcae1.com/temp/iraudamp9 - IRS2092S.pdf
It appears to have ±5v regulators. Look at the following file on and near page 29.
http://www.bcae1.com/temp/iraudamp9 - IRS2092S.pdf
Look at the pin configuration including the polarity of the input, the ground pads and the output pads. Any regulator that has the correct polarity and pin configuration should work. Since they have what appears to be common grounds, the 78/79 type regulators are likely the right parts.
Unless you're in a hurry, you should wait to see if someone can provide more definitive information.
Unless you're in a hurry, you should wait to see if someone can provide more definitive information.
I’m currently on this amp and I’ve added the regulators and the mosfet drivers for the output fets. All well so far no overheating issues but I’m missing something.
There are two 7812 which I’m only able to find one output pin connected to the IRS2092 on pin 12.
The other regulator has input 26v from secondary windings (both regulator) but the connected one has 14v out, unlike the one that I can’t find any connections is at 22v.
I’ve swap regulators but voltage is the same.
It’s a triple layer board and I’ve found two inner circuits that wasn’t connected thru the vias up in the opamp area.
I think if it’s connected then the voltage would be lowered (just a feeling).
There are two 7812 which I’m only able to find one output pin connected to the IRS2092 on pin 12.
The other regulator has input 26v from secondary windings (both regulator) but the connected one has 14v out, unlike the one that I can’t find any connections is at 22v.
I’ve swap regulators but voltage is the same.
It’s a triple layer board and I’ve found two inner circuits that wasn’t connected thru the vias up in the opamp area.
I think if it’s connected then the voltage would be lowered (just a feeling).
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