Hi all.
This is the board from a Onkyo NR609 AV receiver, complete with what IO assume is the preamp board, and I also have the original power transformer, as well as the small AC in board.
I was wondering, is there a way to switch on this unit and use it as a test amplifier or 7 channel power amp? I know it does not have the best sound quality, just thought it a waste to chuck it.
All else fails, I will be using the transformer for my APEX build, can always strip the main board and use the heatsinks and other bits.
I would however, appreciate some help in trying to get this to work, if its possible.
Regards
Cedric
This is the board from a Onkyo NR609 AV receiver, complete with what IO assume is the preamp board, and I also have the original power transformer, as well as the small AC in board.
I was wondering, is there a way to switch on this unit and use it as a test amplifier or 7 channel power amp? I know it does not have the best sound quality, just thought it a waste to chuck it.
All else fails, I will be using the transformer for my APEX build, can always strip the main board and use the heatsinks and other bits.
I would however, appreciate some help in trying to get this to work, if its possible.
Regards
Cedric
Try direct apply AC to the primary of transformer and secondary to the amp board, power on the amp and test the power supply capacitor voltage.
Please make sure you can handle with the danger AC and prepare a dim bulb tester circuit to test it.
Please make sure you can handle with the danger AC and prepare a dim bulb tester circuit to test it.
There is one set relay to control the primary ac supply to the rectifier, you can connect them to activate the power supply.
The supply have high and low voltage for the amp and control by another set relay and you can test the voltage difference and select the correct voltage that you want.
The supply have high and low voltage for the amp and control by another set relay and you can test the voltage difference and select the correct voltage that you want.
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The other board that I have, that also belongs to the amplifier. From what I understand, I wont need this board?
As per your recommendation, what about the two smaller relays, next to the ones you suggested that I bridge
As per your recommendation, what about the two smaller relays, next to the ones you suggested that I bridge
The other board is the standby and AC on/off control board, no need use in this case.
The two small relays(left) control the power on/off to power amp, so that you should connect them. The bigger size relays(right) seems for High/Low supply voltage control, you have to test the actual voltages for them.
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yes
You have to study the transformer connection to the board, I can not see detail info in the manual.
You have to study the transformer connection to the board, I can not see detail info in the manual.
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