Forum: Troubleshooting Laptops, Tablets, and Mobile Devices
03-29-2022, 03:14 PM
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Replies: 16
Views: 427
Hp ZBook 17 G3 Not turning on sort of ???
I have an hp ZBook 17 that will not turn on with the power button. I do have a charge light. I have the board out and the switch is good then I found something not making sense to me. A mosfet (see...
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Forum: Troubleshooting TVs and Video Sources
02-04-2022, 12:46 PM
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Replies: 48
Views: 1,214
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Forum: Troubleshooting TVs and Video Sources
02-04-2022, 12:09 PM
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Replies: 48
Views: 1,214
Re: Samsung UN55EH6000F Power issue
Well it happened so fast and was never a steady voltage on the big cap. I think I seen 380v then down to 100 something but was very fast. I was asking about BD801S I think it is. Would you think I...
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Forum: Troubleshooting TVs and Video Sources
02-04-2022, 11:43 AM
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Replies: 48
Views: 1,214
Re: Samsung UN55EH6000F Power issue
R_J I was thinking that when I checked voltage at the big cap it was also fluctuating so would still be a problem on the hot side of the board. Would the rectifier have anything to do with it???
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Forum: Troubleshooting TVs and Video Sources
02-03-2022, 05:20 PM
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Replies: 48
Views: 1,214
Re: Samsung UN55EH6000F Power issue
RL822 checks ok and I did replace ZDL801 at the same time as other one. Thank you R_J for your time as it's much appreciated. I need to quit for the day but if you think of something please let me...
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Forum: Troubleshooting TVs and Video Sources
02-03-2022, 05:09 PM
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Replies: 48
Views: 1,214
Re: Samsung UN55EH6000F Power issue
Pulled all caps and tested with ESR meter and were almost spot on. No bulging either. I had to also replace RL820 was open and also replaced the zener diode ZDL802 was also open.
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Forum: Troubleshooting TVs and Video Sources
02-03-2022, 05:01 PM
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Replies: 48
Views: 1,214
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Forum: Troubleshooting TVs and Video Sources
02-03-2022, 04:54 PM
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Replies: 48
Views: 1,214
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Forum: Troubleshooting TVs and Video Sources
02-03-2022, 04:39 PM
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Replies: 48
Views: 1,214
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Forum: Troubleshooting TVs and Video Sources
02-03-2022, 04:11 PM
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Replies: 48
Views: 1,214
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Forum: Troubleshooting TVs and Video Sources
02-03-2022, 03:45 PM
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Replies: 48
Views: 1,214
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Forum: Troubleshooting TVs and Video Sources
02-03-2022, 03:23 PM
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Replies: 48
Views: 1,214
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Forum: Troubleshooting TVs and Video Sources
02-03-2022, 03:08 PM
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Replies: 48
Views: 1,214
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Forum: Troubleshooting TVs and Video Sources
02-03-2022, 02:59 PM
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Replies: 48
Views: 1,214
Re: Samsung UN55EH6000F Power issue
I'm now just guessing at things and tested this resistor RP820 and out of circuit it's 0.11 but I can not find a chart online that the colors work with. Under the scope it looks black, gold, black,...
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Forum: Troubleshooting TVs and Video Sources
02-03-2022, 02:51 PM
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Replies: 48
Views: 1,214
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Forum: Troubleshooting TVs and Video Sources
02-03-2022, 02:32 PM
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Replies: 48
Views: 1,214
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