Hi guys, got interesting problem : Asus fx506l with dabkxdmb8e0 board. It had liquid damage on palm rest (motherboard clean af), 19v is present but no 3.3v, 5v. Checked all coils, no-one had short to ground. I'm thinking the ITE IT8987VG is bad. Please confirm my suspicion. Plugin in without battery, orange light is blinking, sometimes power led turns on like for .1 seconds.
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Re: Please help: Asus fx506l no power
Reprogram ITE IT8987VG for testing -
Re: Please help: Asus fx506l no power
Mine is BGA type, dont have any schematics or diagrams, is there any other possible way to test it ?Comment
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Re: Please help: Asus fx506l no power
Check the larger caps around the EC for voltage in standby. One or more should have +3.3V. Some designs don't switch on +3.3V till enabled by the EC. Logic voltage is usually provided by a LDO output of the 3.3V regulator IC.
Look at each IC on the board part numbers to work out which one is providing the 3.3V and 5V rails.Comment
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Re: Please help: Asus fx506l no power
Same here, Any ec.bin to download an reprogram?Comment
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Re: Please help: Asus fx506l no power
Laptop bios and EC requests go here -> https://www.badcaps.net/forum/forumdisplay.php?f=40Comment
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Re: Please help: Asus fx506l no power
This EC is self-programming from bios... Look at the schematicsAttached FilesComment
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Re: Please help: Asus fx506l no power
check the spi resistor to hold 7pin should be 3.3kComment
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Re: Please help: Asus fx506l no power
Usually ite is self programming , type ?Comment
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I'm trying to troubleshoot a Microsoft Surface Pro (5th gen) model 1796 that won't power on. Motherboard model is M1007506-015. My priority is retrieving data, but the SSD is integrated so it looks like if I can't repair it it'll need to go to a data recovery company. I've done a little basic board repair before, but nothing this advanced until now. So please forgive my ignorance in advance. 😅
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