Re: Backlight problem on viewSonic VP171b
My monitor worked for about 2 weeks then it went blank again. Q5 and Q6 blew again. I replaced them and the monitor worked for about 10 seconds and then they blew again. Do you know what is causing these transistors to blow?
edfromut
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Last Activity: 05-16-2012, 04:59 PM
Joined: 11-29-2011
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Re: Backlight problem on viewSonic VP171b
I replaced Q5 and Q6 and that did the trick. For $5 total it's like brad new. Thanks PlainBill !!Leave a comment:
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Re: Backlight problem on viewSonic VP171b
I have the same problem as previous posts, one second delay and then the screen goes black. It looks like I have a shorted transistor (Q5), but I can't identify it. The transistors Q3, Q4, Q5, and Q6 are all the same. They are very small and the only markings on them is "DK" on one line and "QN" underneath it.
Can anyone identify these transistors?Leave a comment:
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