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zookeepertoo
Joined: 11 Jun 2011 Posts: 3 Location: uk
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Posted: Sat Jun 11, 2011 12:06 pm Post subject: samsung y-sus PS50C96HDX |
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hi, on my y-sus board 3 of the 4 mosfets (748228) have blown. I have removed all 4 and am now looking for other defective parts on the board. Strangely the area surrounding the mosfets when the board is powered up shows predominantly a - (negative) 192v and in a few places -(negative) 67v. This includes the tops of the capacitors around that area of the board. Has anybody any idea which other components to look at to find the faults now please. many thanks for looking Dave.
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Last edited by zookeepertoo on Sun Jun 12, 2011 8:08 am; edited 1 time in total |
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kuhurdler
Joined: 28 Dec 2006 Posts: 2879 Location: Overland Park, KS
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Posted: Sat Jun 11, 2011 4:13 pm Post subject: |
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model number? |
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zookeepertoo
Joined: 11 Jun 2011 Posts: 3 Location: uk
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Posted: Sat Jun 11, 2011 4:59 pm Post subject: |
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ps50c96hdx
850hw-yb02
lj41-05120a
revision 1.3 |
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kuhurdler
Joined: 28 Dec 2006 Posts: 2879 Location: Overland Park, KS
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Posted: Sun Jun 12, 2011 11:50 am Post subject: |
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What is your reference? or put another way... where are you touching the black leg of your meter? |
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zookeepertoo
Joined: 11 Jun 2011 Posts: 3 Location: uk
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Posted: Sun Jun 12, 2011 12:01 pm Post subject: |
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hi, to chassis or rear of panel i guess. |
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