THANK YOU SIR!
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Traced problem to panel board on left, with board disconnected have 3/4 of panel lit with image. Have short across smd caps. How do I proceed?
Thanks again.Attached FilesComment
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How's this?Comment
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Measure the resistance on these pins (3x3) with a multimeter against ground, it should not be low or short.Attached FilesComment
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No lows or shorts on those pins, but at the caps. I think it's the panel.Attached FilesComment
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If they are all sitting on the same bus, then if at least one is short, then all the others will seem to be short too, try to unsolder one by one and check, start with the suspicious ones (darkened, microcrack..).Comment
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You can also use alcohol or flux to put on them and turn tv on and see which one gets hot and evaporatesComment
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Removed 4 more smd caps , unable to find short. Throwing in the towel on this one,but I learned a lot. Thanks lotas and Storyteller12. Appreciated your input.Comment
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Hello everyone,
I'm facing an issue with a HEG-001 motherboard that is unable to complete the Second-Stage Boot. I'd like to start directly with my conclusion, which is the decision to replace the MAX77621AEWI chip, and understand if it could be a correct evaluation.
Before I dive into the process that led me to this decision, I want to mention that I have a fully equipped lab where I can perform any kind of tests.
Let's begin:
Following some guides online, I tried to understand how the Boot phase of the Nintendo Switch works, and what are the... -
I'm using Xiaomi Router 4A gigabit edition as wireless repeater. It worked fine for 2 years or so, but last week, wireless started to disappear.
When I unplug/replug the power, it was working fine for a day/half a day or so until it freezes again.
After testing with different power supply adapters and concluding it wasn't the issue I finally opened the case and this was the situation:
Anyway I proceed to clean up the mess and replace all caps but unfortunately it made the situation worse. Now router can't even boot, either it freezes during... -
Hi,
I have liquid damaged macbook air 2018. Macbooks restarts after 10s when its trying to boot.
Q7660 was water damaged and I have cleaned everything. It is connected to the U7650 that makes the PP5V_G3S. When its trying to turn on than everything voltage seems fine and than it drops and after 10s its trying to boot again and again.
Anyone to help me to solve it?
Thanks for reply. -
Hello all... TV started boot looping. Opened the back panel and tried to isolate the problem. Just PSB no boot loop. PSB and MB no boot loop. Plug in the LVDS from panel to MB and boot looping starts up. It doesnt matter of order that I plug the LVDS ribbons back in, only 1 and no boot loop but as soon as 2nd one plugs in boot looping. I then noticed a flicker on the screen when I was closing the clip on the harness to the LVDS. Shut the lights off so I can see better, and I noticed as i slowly close it, I will get a picture, but as soon as it clips in, I lose picture and booting happens. So I... -
Hello All,
I have an issue with my Majority PETERHOUSE GRADUATE Internet Radio, it keeps rebooting at the boot logo Welcome screen. I have an another forum active in other website but due to lack of response I am posting the same here. I am positing a link below that has pictures including all the troubleshooting I have tried, appreciate if someone can take a look and give me any suggestions.
https://www.hifivision.com/threads/m...-screen.98243/
Troubleshooting Summary: Majority Internet Radio - Flash Chip...
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