My Take on X-BOSOZ - Page 101

jleaman · 5th April 2006, 03:36 AM

I need help with the x-bosoz

mine is fried and another psu down the drain

I was getting 20V - and 35V positive. what have i done wrong ? im looking at the xcel sheet that they have put up on there site and its part for part.

Pic's can be posted if needed. R4 on the other boards is now toast

Russ White · 5th April 2006, 12:39 PM

Jason, it sounds like you installed another diode backward which probably toasted R4. You likely need to replace R4 and the diode(s).

jleaman · 5th April 2006, 01:53 PM

No it-s in exactly the same way as the psu shows it.

hayenc · 5th April 2006, 04:57 PM

When I was getting the low voltage on the positive side, it turned out to be my mistake in hooking up the transformer. One of the primary connections was not tight, so it was overloading and dropping below the required voltage for the regulator to have any effect. I would suggest carefully (these are dangerous volatges.) checking voltages upstream of the zener/FET to make sure you are not starving the regulator.

Only other thing I can think of is making sure the 610 and 9610 are not switched.

Craig

jleaman · 5th April 2006, 05:04 PM

This picture is exactly how i have mine built.

Russ White · 5th April 2006, 05:12 PM

Quote:

Originally posted by jleaman
This picture is exactly how i have mine built.

Jason, we all know how the circuit should look.

A picture of yours might help.

jleaman · 5th April 2006, 05:18 PM

Quote:

Originally posted by Russ White

Jason, we all know how the circuit should look. A picture of yours might help.

I dont want to be rude, BUT my board is exactly part for part location for location and polarity for polarity.

mwmkravchenko · 5th April 2006, 05:21 PM

Not to say anything bad about your skills. But an extra set of eyes never hurts when your dealing with a lot of small parts. Been down the same path your on more than once. Everytime someone will walk in and spot the problem in 5 minutes.

Mark

jleaman · 5th April 2006, 05:24 PM

The transformer is connected like this..

Positive rail.
white/oranged shorted to gether to get voltage of 60V it is a 2 x 30V

Yellow goes to AC+1
Black goes to AC+2

Negitive rail
The other transformer 2 x 12V orange/white shorted again to get 24V

Yellow goes to AC-1
Black Goes to AC-2

I can post a picture tonight when i get home

I hope i didn't ruen any thing.

BrianDonegan · 5th April 2006, 05:35 PM

Close up pics of the top and bottom would be ideal. Did the second PS work until you hooked it up to the pre?

5th April 2006, 12:39 PM	#1002
Russ White diyAudio Member Join Date: Jan 2005 Location: Nashville, TN, USA	Jason, it sounds like you installed another diode backward which probably toasted R4. You likely need to replace R4 and the diode(s). __________________ Less pulp more juice Twisted Pear Audio.

5th April 2006, 05:21 PM	#1008
mwmkravchenko Mark Kravchenko --- www.kravchenko-audio.com diyAudio Member Join Date: Jan 2002 Location: Perth Canada	Hi Jason! Not to say anything bad about your skills. But an extra set of eyes never hurts when your dealing with a lot of small parts. Been down the same path your on more than once. Everytime someone will walk in and spot the problem in 5 minutes. Mark __________________ Mark

5th April 2006, 05:35 PM	#1010
BrianDonegan diyAudio Member Join Date: Dec 2004 Location: Rock Ridge	Close up pics of the top and bottom would be ideal. Did the second PS work until you hooked it up to the pre? __________________ Twisted Pear Audio

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5th April 2006, 03:36 AM	#1001
jleaman Banned Join Date: Apr 2002	I need help with the x-bosoz mine is fried and another psu down the drain I was getting 20V - and 35V positive. what have i done wrong ? im looking at the xcel sheet that they have put up on there site and its part for part. Pic's can be posted if needed. R4 on the other boards is now toast

5th April 2006, 01:53 PM	#1003
jleaman Banned Join Date: Apr 2002	No it-s in exactly the same way as the psu shows it.

5th April 2006, 04:57 PM	#1004
hayenc diyAudio Member Join Date: Apr 2005 Location: Glendale, AZ	When I was getting the low voltage on the positive side, it turned out to be my mistake in hooking up the transformer. One of the primary connections was not tight, so it was overloading and dropping below the required voltage for the regulator to have any effect. I would suggest carefully (these are dangerous volatges.) checking voltages upstream of the zener/FET to make sure you are not starving the regulator. Only other thing I can think of is making sure the 610 and 9610 are not switched. Craig

5th April 2006, 05:24 PM	#1009
jleaman Banned Join Date: Apr 2002	The transformer is connected like this.. Positive rail. white/oranged shorted to gether to get voltage of 60V it is a 2 x 30V Yellow goes to AC+1 Black goes to AC+2 Negitive rail The other transformer 2 x 12V orange/white shorted again to get 24V Yellow goes to AC-1 Black Goes to AC-2 I can post a picture tonight when i get home I hope i didn't ruen any thing.

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