Linn Axis PCAS011 power supply

klinker · 23rd March 2006, 06:58 PM

Axis does not turn on. No light on, no smoked parts. The motor in circuit reads 3 K ohms on each leg.
This appears to be an early model S/N 002851.
Any help would be greatly appreciated.

Klinker

sreten · 24th March 2006, 10:06 AM

Hi,

you need to check the mains lead fuse.

any fuses either side of the mains transformer.

check with a multimeter there is AC into and out of the mains transformer.

check there is appropriate DC to the circuit boards.

after that circuit details are needed.

/sreten.

tubenut · 24th March 2006, 05:18 PM

Check the fuse.... No transformer on an axis psu by the way.
Also check the high voltage caps and resistors of 15K (big ones).

klinker · 24th March 2006, 09:02 PM

Your absolutely right. It's abvious you've seen this before.
Linn was kind enoough to send me the schematic for the board.
It has no values so I calculataed the 15K resistors. Do you know what wattage they are? They look like 3 or 4 watt metal oxide.

Thanks to everyone for the help.

Regards,
Klinker

tubenut · 25th March 2006, 07:11 AM

Dunno wattage but the 5 Watt Welwyn that I fitted have been 100 % for 6 months or so now.
Does one of them measure high?

tubenut · 25th March 2006, 07:12 AM

BTW, would love a copy of the CCT.

audiotux · 25th March 2006, 08:17 AM

Hi klinker ,

can you please send me the schematic too ?
Thanx in advance

Jürgen

klinker · 26th March 2006, 10:42 PM

Thanks for the input, I ordered 3W. I couldn't find 5W metal oxide.

Yes, I'll be glad to if I can figure out how!!

Klinker

tubenut · 27th March 2006, 07:48 AM

Scan and E mail?

Redart · 7th April 2006, 12:16 PM

Hi All,

I too have a dead Axis - no turn on the motor and no LEDs illuminated. I can get the motor to spin by applying power direct to the motor terminals, but not through the board.
Has anyone found a solution or can advise what to change out?.
Also can anyone supply a circuit diagram ?

Thanks.

23rd March 2006, 06:58 PM	#1
klinker diyAudio Member Join Date: Mar 2006 Location: Arizona	Linn Axis PCAS011 power supply Axis does not turn on. No light on, no smoked parts. The motor in circuit reads 3 K ohms on each leg. This appears to be an early model S/N 002851. Any help would be greatly appreciated. Klinker

24th March 2006, 05:18 PM	#3
tubenut diyAudio Member Join Date: Nov 2002 Location: South Africa, Jhb	Check the fuse.... No transformer on an axis psu by the way. Also check the high voltage caps and resistors of 15K (big ones). __________________ Guillaume Croak Audio Exploration

25th March 2006, 07:11 AM	#5
tubenut diyAudio Member Join Date: Nov 2002 Location: South Africa, Jhb	Dunno wattage but the 5 Watt Welwyn that I fitted have been 100 % for 6 months or so now. Does one of them measure high? __________________ Guillaume Croak Audio Exploration

25th March 2006, 07:12 AM	#6
tubenut diyAudio Member Join Date: Nov 2002 Location: South Africa, Jhb	BTW, would love a copy of the CCT. __________________ Guillaume Croak Audio Exploration

27th March 2006, 07:48 AM	#9
tubenut diyAudio Member Join Date: Nov 2002 Location: South Africa, Jhb	Scan and E mail? __________________ Guillaume Croak Audio Exploration


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24th March 2006, 10:06 AM	#2
sreten diyAudio Member Join Date: Nov 2003 Location: Brighton UK	Hi, you need to check the mains lead fuse. any fuses either side of the mains transformer. check with a multimeter there is AC into and out of the mains transformer. check there is appropriate DC to the circuit boards. after that circuit details are needed. /sreten.

24th March 2006, 09:02 PM	#4
klinker diyAudio Member Join Date: Mar 2006 Location: Arizona	Your absolutely right. It's abvious you've seen this before. Linn was kind enoough to send me the schematic for the board. It has no values so I calculataed the 15K resistors. Do you know what wattage they are? They look like 3 or 4 watt metal oxide. Thanks to everyone for the help. Regards, Klinker

25th March 2006, 08:17 AM	#7
audiotux diyAudio Member Join Date: Nov 2004 Location: Bruchsal/Germany	Hi klinker , can you please send me the schematic too ? Thanx in advance Jürgen

26th March 2006, 10:42 PM	#8
klinker diyAudio Member Join Date: Mar 2006 Location: Arizona	Thanks for the input, I ordered 3W. I couldn't find 5W metal oxide. Yes, I'll be glad to if I can figure out how!! Klinker

7th April 2006, 12:16 PM	#10
Redart diyAudio Member Join Date: Apr 2006 Location: Gold Coast	Hi All, I too have a dead Axis - no turn on the motor and no LEDs illuminated. I can get the motor to spin by applying power direct to the motor terminals, but not through the board. Has anyone found a solution or can advise what to change out?. Also can anyone supply a circuit diagram ? Thanks.

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