R2 and R3 values on Linn Axis PSU

martiny · 1st March 2009, 06:16 PM

Does anyone know what the R2 and R3 resistor values are as mine have blown and I need to replace them. They are the large wattage ones near the power input.
Many Thanks,
martiny

h_a · 2nd March 2009, 04:58 PM

I think they're 47 Ohms.

Did you check the whole psu? If the power resistors blew, there's most likely other damage as well.

Have fun, Hannes

martiny · 3rd March 2009, 02:46 AM

Hi,
Thanks for the reply but I have found out they should be 15k.
If I put 47R ones they would need to take almost a kilowatt of power. Thanks anyway,
Martiny

h_a · 4th March 2009, 10:46 AM

Oh sorry, yes indeed I looked at the wrong ones. They just form a voltage divider that feeds a Zener, of course you need a high value in this position.

Sorry, Hannes

1st March 2009, 06:16 PM	#1
martiny diyAudio Member Join Date: Feb 2009	R2 and R3 values on Linn Axis PSU Does anyone know what the R2 and R3 resistor values are as mine have blown and I need to replace them. They are the large wattage ones near the power input. Many Thanks, martiny

2nd March 2009, 04:58 PM	#2
h_a diyAudio Member Join Date: Sep 2006 Location: Graz, Austria	I think they're 47 Ohms. Did you check the whole psu? If the power resistors blew, there's most likely other damage as well. Have fun, Hannes __________________ fresh matched IRFP240/IRFP9240 fets \|\| AlephJ/JX-kits F5 transistor kits \|\| Burning Amp BA-1/2/3 transistor kits

4th March 2009, 10:46 AM	#4
h_a diyAudio Member Join Date: Sep 2006 Location: Graz, Austria	Oh sorry, yes indeed I looked at the wrong ones. They just form a voltage divider that feeds a Zener, of course you need a high value in this position. Sorry, Hannes __________________ fresh matched IRFP240/IRFP9240 fets \|\| AlephJ/JX-kits F5 transistor kits \|\| Burning Amp BA-1/2/3 transistor kits

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3rd March 2009, 02:46 AM	#3
martiny diyAudio Member Join Date: Feb 2009	Hi, Thanks for the reply but I have found out they should be 15k. If I put 47R ones they would need to take almost a kilowatt of power. Thanks anyway, Martiny

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