howie
Junior Member
Posts: 88 
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Post by howie on Nov 12, 2017 12:40:57 GMT -5
This touch screen has been flaky in the past. If a power outage occurs it may or may not power back up normally. It has a 24 VDC external power supply I put it on a UPS to help protect it. Lost power the other night and the ups crapped out before the power was restored. Now it won't power back up again. I have 24 volts to the part next to the number 6 and that's where it stops. What are parts 6 and Z3 in the picture 1315498136736.bmp (900.05 KB) |
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howie
Junior Member
Posts: 88
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Post by howie on Nov 12, 2017 12:44:06 GMT -5
well that didn't work have to figure out how to post a picture
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Post by mastertech on Nov 12, 2017 16:26:17 GMT -5
It looks like a diode. There maybe a D before that 6 but was printed over.  |
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howie
Junior Member
Posts: 88
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Post by howie on Nov 12, 2017 19:11:17 GMT -5
On this side of the board power stops here. This is the first device for 24 VDC+ after the power connector. I can find ground or 24VDC- all over the board. When I ohm it out, sometimes it reads open and others about 190 ohms. Perhaps that was me unknowingly reversing the probes. If it is a diode then power must be going out on the bottom of the board. I have put it away for the night and won't have time to smash it with a hammer again until Tuesday night
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Post by mastertech on Nov 12, 2017 19:22:09 GMT -5
I have put it away for the night and won't have time to smash it with a hammer again until Tuesday night Hahahaha!!!. Let me know if you need help. I have a special hammer for problematic boards. Makes smaller pieces.  |
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howie
Junior Member
Posts: 88
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Post by howie on Nov 12, 2017 19:39:23 GMT -5
I have put it away for the night and won't have time to smash it with a hammer again until Tuesday night Hahahaha!!!. Let me know if you need help. I have a special hammer for problematic boards. Makes smaller pieces. I don't think there's a chance in hell of getting a service manual from Crestron. They are so tight they squeak. |
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Post by mastertech on Nov 12, 2017 19:44:26 GMT -5
Yeah, I hear that. You never know though. I have called manufacturers on many occasions and they happily emailed me the schematics. But then there were times they told me to get bent. |
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