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tofutofu
Joined: 24 Jan 2012 Posts: 15
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Posted: Fri Jan 27, 2012 2:50 pm Post subject: need help with aegis 152TA touch screen |
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HI
trying to reaper the Aegis 152TA 15" touch screen.
as I connected the 12v power supply wrong polarity, I suspects I damage it
the problem: not turning on.
things I tried:
opening the screen, I sow a bad capacitor (exploded), replace it with different capacitor from shop ( look diffident, but I have been told it's same):
old cap- (22 25a)
new cap (22mf 50v)
to be cont.. |
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tofutofu
Joined: 24 Jan 2012 Posts: 15
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Posted: Fri Jan 27, 2012 3:32 pm Post subject: |
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checking the screen after replacement - no change
I checked the power board- I could see that the 5V pin show 0v ( 12v OK):
testing the diode (disconnect 1 leg) show it is fine.
so I suspect the U13. ( is it a voltage regulator?)
need help with that
the part number is:1796-50a G3417A
thank you |
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vtech
Joined: 08 May 2006 Posts: 1264 Location: USA
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Posted: Sat Jan 28, 2012 5:10 am Post subject: |
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5Volt switching regulator made by Taiwanese outfit Aimtron
Manufactured part number AT1796-50
Probably not easy to find locally. I have had good luck with utsource.net for the oddball stuff but it will take time coming from the east. |
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tofutofu
Joined: 24 Jan 2012 Posts: 15
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Posted: Sun Feb 05, 2012 9:27 am Post subject: |
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thanks
I will try to get it... |
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