Hi There
I have a short circuit in my BN44-00264A PSU. The FS801S blows immediately when powered up. There are no smells or visibly obvious suspect components. I've been reading through related forum posts and I think I have narrowed down the problem.
I removed components QI820 and QI821 based on a forum thread I was following (but I think this may have been unnecessary in my case). I tried the lamp across the fuse terminals. In my case I have electrician test lamps and these glowed brightly.
A few days later I discovered ~zero resistance across the +/- terminals of BD801S while it was still in circuit. I removed BD801S and still measured the same resistance across BD801S.
Yesterday, I noticed ~zero resistance across the Gate and Drain and the Drain and Source of QP801S. I removed this component and I'm now measuring an open circuit. Does QP801S sound like the faulty component.
Should I replace all the components I have removed or just the QP801S.
Also, I'm in Australia. What is a good place to source components? I have found rs.online.com which have the QI820 & QI821 components. They have a STF11NM60ND. What does the D on the end mean? Is this the same component as STF11NM60N.
http://au.rs-online.com/web/p/mosfet...stors/7612745/
They don't have the Bridge Rectifier TS6B05G, they have a KBU605G
http://au.rs-online.com/web/p/bridge...fiers/6875894/
Has anyone tried alibaba.com or aliexpress.com for components?
Thanks
Mark
I have a short circuit in my BN44-00264A PSU. The FS801S blows immediately when powered up. There are no smells or visibly obvious suspect components. I've been reading through related forum posts and I think I have narrowed down the problem.
I removed components QI820 and QI821 based on a forum thread I was following (but I think this may have been unnecessary in my case). I tried the lamp across the fuse terminals. In my case I have electrician test lamps and these glowed brightly.
A few days later I discovered ~zero resistance across the +/- terminals of BD801S while it was still in circuit. I removed BD801S and still measured the same resistance across BD801S.
Yesterday, I noticed ~zero resistance across the Gate and Drain and the Drain and Source of QP801S. I removed this component and I'm now measuring an open circuit. Does QP801S sound like the faulty component.
Should I replace all the components I have removed or just the QP801S.
Also, I'm in Australia. What is a good place to source components? I have found rs.online.com which have the QI820 & QI821 components. They have a STF11NM60ND. What does the D on the end mean? Is this the same component as STF11NM60N.
http://au.rs-online.com/web/p/mosfet...stors/7612745/
They don't have the Bridge Rectifier TS6B05G, they have a KBU605G
http://au.rs-online.com/web/p/bridge...fiers/6875894/
Has anyone tried alibaba.com or aliexpress.com for components?
Thanks
Mark
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