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Old 5th Jan 2021, 4:56 pm   #1
stuart_morgan_64
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Default Help ID part

I can't find info on this device, assume mosfet, switching for back light on monitor. I read BH614T under that D606. Tried google, perhaps someone will know the logo, a with a long tail round it. Anny suggestions please.
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Old 5th Jan 2021, 5:21 pm   #2
McMurdo
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Default Re: Help ID part

one of these by the looks of it

Dual complimentary switching mosfet

https://www.digchip.com/datasheets/p...AOD606-pdf.php
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Old 5th Jan 2021, 5:24 pm   #3
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Default Re: Help ID part

Hi
You're probably right - it will be a MOSFET. If it's failed it could be a faulty transformer - that type often fails as does the backlight insulation (and the tubes themselves) within the screen. I might be telling you what you altready know, but check the two secondary windings of the transformer have identical resistances.
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Old 5th Jan 2021, 5:24 pm   #4
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Default Re: Help ID part

Hya, I think you are spot on, should of come here first, have used a bit of time up, S2 and G2 have a short. Power supply fired up with no mosfet. Thanks for your reply
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Old 5th Jan 2021, 5:26 pm   #5
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Default Re: Help ID part

Another reply, I shall do that before ordering parts. Original problem was had to keep turning it on a few times. Two bulging caps on 4v rail. Replaced other caps but managed to bridge a small 10uf cap. Will check coils, thanks
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Old 5th Jan 2021, 5:31 pm   #6
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Default Re: Help ID part

All primary's and secondary's reading the same. I'll shall order part and fingers crossed
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