Reflowed the crystals and processor . . . no change. Maybe one of the boost or buck converters? They appear to be proprietary Samsung ICs so not much else to do at this point, I think. I suppose I could try reflowing those - especially IC401 / VLS1R0A. Voltages are wrong around that one . . . maybe I have a board with that IC on it. to try swapping it out.
Un50mu6070 Mainboard issue
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Here's the data from the 24C512 eeprom . . .Attached FilesComment
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Not yet, I haven't had time yet, I'll try to look tomorrow.
For now, try these two dumps for 25q80 and 24c512 for diagnostics.
Status register for 25Q80 (0x98.0x02).Last edited by lotas; 02-27-2025, 05:47 PM.Comment
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Updated the firmware on the 24C512 with your file and it's still not working. I'll try the 25Q80 file at some point, but I'm going to shelf this project for now. I started restoring a Pioneer SX-1010 recently and I want to spend time on that. Thanks again for your help. I'll revisit this post when I pick this project back up.Comment
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