electronics, repairs, service manuals and datasheets discussion community for the repairs professionals and technicians
FAQSearchMembersGroupsRegisterProfilePM'sLogin/Out
CoolMaster rs-460-psar-j3

 
Post new topic   Reply to topic    Electronic equipment repair and service manual search discussion Forum Index -> Equipment Repairs
View previous topic :: View next topic  
Author Message
Grant
Guest





PostPosted: Wed Mar 16, 2011 1:23 am    Post subject: CoolMaster rs-460-psar-j3 Reply with quote

I got a brand new ATX power supply.
Main fuse is good but no power on secondary side.

The thing has aprox 150 v to the primary windings on the switching transformer.


Secondary side is DEAD.I have check all the E-Caps, ceramic caps, start up resistors, Diodes, etc. I have tested all winding on transformer , choke, etc with my Blue Ring tester. All seems good.

There is an Optoisolator(Driver IC 8 Legs) on the primary side, it is getting voltage but i am not sure how to check it or what voltage on what pin should be.

Has any one here worked on this model of switch mode power supply ?
Does anyone have any case history's on this model.
Thanks for any help in advance.
Back to top
vtech



Joined: 08 May 2006
Posts: 1264
Location: USA

PostPosted: Wed Mar 16, 2011 2:25 am    Post subject: Reply with quote

Do not have the specific diagram but most often , there is a line on the secondary side that needs to see the ground before you'll have full operation but there should be an "always 5v or 3v" present.

Are there any markings on the board by the plug/connector as to what it supposed to be? (ie 5v 12v etc)
Back to top
View user's profile Send private message
grant1842



Joined: 16 Mar 2011
Posts: 3

PostPosted: Wed Mar 16, 2011 3:06 am    Post subject: Reply with quote

Thanks for your reply.

The only v mark i can find on the board is were a purple wire is ,
it says +5vSB on the secondary side, and there is no volts at all on the secondary side.
Back to top
View user's profile Send private message
vtech



Joined: 08 May 2006
Posts: 1264
Location: USA

PostPosted: Thu Mar 17, 2011 1:18 pm    Post subject: Reply with quote

You mentioned " Brand New"? Can't you at least exchange it? Certainly ought to have some sort of warranty?
Have not read the whole thing but see if this page may give you some ideas?
http://tinyurl.com/4mwfpgq
Back to top
View user's profile Send private message
Display posts from previous:   
Post new topic   Reply to topic    Electronic equipment repair and service manual search discussion Forum Index -> Equipment Repairs All times are GMT
Page 1 of 1

 
Jump to:  
You can post new topics in this forum
You can reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum
You cannot vote in polls in this forum


Електроника София - Service Manuals Free Download - Prikachi - Service Diagrams

Free TV Schematics Download - HARDW.net - Pinout Master - Jabse Search - Jabse.InK  - Pulsator

Connector Pinout Forum - Новини - SnimkiOt.com - безплатен DNS - Whois разузнаване - Poblizo.com : пътешествия