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06-14-2019, 08:59 PM
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#1 |
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Senior Member
Join Date: Feb 2011
Posts: 108
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Help needed identify Diode - PSU FSP Hexa 500W
Hi All
Need help to identify a shorted diode on PSU Hexa 500W. Don't know what rating to replace with. Shorted diode is D24. D24 is located just under the long heat sink (indicated by arrow). there is a familiar looking diode at D25 Main Fuse is also blown. Any help is appreciated. Thanks |
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06-14-2019, 09:27 PM
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#2 |
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Badcaps Veteran
Join Date: Feb 2010
City & State: S.F. Bay area
My Country: USA
Line Voltage: 120V 60Hz
I'm a: Knowledge Seeker
Posts: 39,047
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Re: Help needed identify Diode - PSU FSP Hexa 500W
https://www.badcaps.net/forum/attach...7&d=1560567083
Did you remove it and test it off the board? It is connected in parallel with the resistor R84 (I cannot cleary see the print on the body, but more likely to be a 10 Ohms resistor). BTW, that diode/resistor network is for Gate discharge which is connected to Gate of the MOSFET, you should check and see if the MOSFET is OK or not. Since the main fuse is blown, you need to check all the power semiconductor devices for shorts.
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Never stop learning Basic LCD TV and Monitor troubleshooting guides. http://www.badcaps.net/forum/showthr...956#post305956 Voltage Regulator (LDO) testing: http://www.badcaps.net/forum/showthr...999#post300999 Inverter testing using old CFL: http://www.badcaps.net/forum/showthr...er+testing+cfl Tear down pictures : Hit the ">" Show Albums and stories" on the left side http://s807.photobucket.com/user/budm/library/ TV Factory reset codes listing: http://www.badcaps.net/forum/showthread.php?t=24809 Last edited by budm; 06-14-2019 at 10:22 PM.. |
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