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viewsonic n3250 schematic/power supply

 
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lago



Joined: 13 Apr 2009
Posts: 7
PostPosted: Mon Apr 13, 2009 5:37 am    Post subject: viewsonic n3250 schematic/power supply Reply with quote
Hi, Im the new kid in town just found out about this wounderfull site it is awesome,
Now to what got me here I would be very much in apreciation if some one can help with proving the viewsonic model # 3250w schematic / power supply to troubleshoot the power supply of my tv it does not turn on at all there is power going in to and the fuse is ok, but I do not know what is the vlts. going out in wich pins
Thank you very much in advance cincerly
Lago Very Happy
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jts1957



Joined: 24 Nov 2008
Posts: 773
Location: Far, Far Away
PostPosted: Mon Apr 13, 2009 6:43 am    Post subject: Reply with quote
Check CS21 & CS22 in power supply.
webmaster@viewsonic.com maybe a replacement power supply, but I doubt if they'll be of help as far as a schematic.
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lago



Joined: 13 Apr 2009
Posts: 7
PostPosted: Mon Apr 13, 2009 7:19 am    Post subject: bad IC21/22 Reply with quote
Hi, thanks for the info I check cs21 and they swell up both, I did not see any other like that or blown diodes nor ic's by any chance what component may alowed for this to swell ? is there something else I need to look for ? thank you very much, for you pront response
Lago
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jts1957



Joined: 24 Nov 2008
Posts: 773
Location: Far, Far Away
PostPosted: Mon Apr 13, 2009 7:36 am    Post subject: Reply with quote
Who knows?

A bad batch of Caps?
Old age?
Viewsonic obtained from the cheapest provider?
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lago



Joined: 13 Apr 2009
Posts: 7
PostPosted: Fri Apr 17, 2009 3:43 pm    Post subject: Reply with quote
Hi jts725 I d like to thank you for you r tips the power supply had caps at 1500 16v. could not find any only special order and would take 3-4 weeks ?? so i place some of the i series to mach and is working just fine thank again
Lago
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