Diode 31DQ 06 Shchottky measurements are right?

Thread Starter

frank55

Joined Dec 6, 2013
284
Hi guys; please can you tell me if Diode 31DQ 06 Shchottky measurements
are right for this Tv Power Supply

Forward Bias 0.217

This is a Sumsung Monitor 2493 HM blue steady light on and no black screen,no 24v or 5.3v to the boards invert-er and main board no visible bad components,i checked all components that i could with my Fluke 84 and do not find anything out of specks except suspect this Diode 31DQ 06 Shchottky measurements,any help would be apreciated,thanks in advance


https://www.google.com/search?q=samsung+2493hm+power+board&tbm=isch&imgil=iLFJyF0RRevYgM%3A%3BhH9ibcu_bo9CIM%3Bhttp%253A%252F%252Fwww.dhgate.com%252Fstore%252Fproduct%252Fmonitor-power-board-bn44-00173a-for-samsung%252F163137965.html&source=iu&pf=m&fir=iLFJyF0RRevYgM%3A%2ChH9ibcu_bo9CIM%2C_&biw=1259&bih=896&usg=__HyZQUiPOA6ayk18hPLXDY2n3YAA=&ved=0ahUKEwjyhfTB6cLJAhUH7B4KHWRwAQQQyjcIeg&ei=-NlhVvKpMofYe-TghSA#imgrc=iLFJyF0RRevYgM:&usg=__HyZQUiPOA6ayk18hPLXDY2n3YAA=
 

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Last edited:

ian field

Joined Oct 27, 2012
6,539
Hi guys; please can you tell me if Diode 31DQ 06 Shchottky measurements
are right for this Tv Power Supply

Forward Bias 0.217

This is a Sumsung Monitor 2493 HM blue steady light on and no black screen,no 24v or 5.3v to the boards invert-er and main board no visible bad components,i checked all components that i could with my Fluke 84 and do not find anything out of specks except suspect this Diode 31DQ 06 Shchottky measurements,any help would be apreciated,thanks in advance


https://www.google.com/search?q=samsung+2493hm+power+board&tbm=isch&imgil=iLFJyF0RRevYgM%3A%3BhH9ibcu_bo9CIM%3Bhttp%253A%252F%252Fwww.dhgate.com%252Fstore%252Fproduct%252Fmonitor-power-board-bn44-00173a-for-samsung%252F163137965.html&source=iu&pf=m&fir=iLFJyF0RRevYgM%3A%2ChH9ibcu_bo9CIM%2C_&biw=1259&bih=896&usg=__HyZQUiPOA6ayk18hPLXDY2n3YAA=&ved=0ahUKEwjyhfTB6cLJAhUH7B4KHWRwAQQQyjcIeg&ei=-NlhVvKpMofYe-TghSA#imgrc=iLFJyF0RRevYgM:&usg=__HyZQUiPOA6ayk18hPLXDY2n3YAA=
The Vf stated is somewhere near right or maybe just a little high.

Note that most SB rectifiers show measurable reverse leakage on a DMM resistance range.

Its rated 3A, the 06 means its 60V - about as high as they go before prices rocket.
 
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