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xls 1500 repair / component identification


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#1 triac

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Posted 21 March 2012 - 08:47 PM

Hi,

I have a XLS 1500 which blew up the output FET's Q203 & Q204
Apparently under moderate load it made a loud squealing noise then shut off.

It also burnt R143 & 243 beyond recognition.

Is it possible someone can identify the values of these two surface mount resistors for me?
I have examined the rest of the circuit drive components and they appear to be ok.

I am also chasing any info on converting this unit for 240v.
Currently it is running through a large step down 110v transformer which I would like to do away with.

Thanks & regards

-A

#2 dakos

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Posted 24 March 2012 - 02:10 PM

QUOTE(triac @ Mar 21 2012, 08:47 PM) View Post
Hi,

I have a XLS 1500 which blew up the output FET's Q203 & Q204
Apparently under moderate load it made a loud squealing noise then shut off.

It also burnt R143 & 243 beyond recognition.

Is it possible someone can identify the values of these two surface mount resistors for me?
I have examined the rest of the circuit drive components and they appear to be ok.

I am also chasing any info on converting this unit for 240v.
Currently it is running through a large step down 110v transformer which I would like to do away with.

Thanks & regards

-A
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