Yes he is a corpse..
I've injected 1.7volts to find if there's a shorted capacitor in the line, nothing was found and the processor started heating-up consuming 370mA
I don't have the tools to replace him, thank you.
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| HP 15-AC (LA-C701P Rev 1.0) No start https://vlab.su/viewtopic.php?f=53&t=129078 |
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| mohammedsf [ 29 сен 2022, 04:14 ] | |
| Заголовок сообщения: | HP 15-AC (LA-C701P Rev 1.0) No start |
Hello, this board came with no start, there is no 3valw/5valw before pressing the power button, after pressing every thing rises except the discrete power supply and the consumption is 0.160A for 6 seconds then cut off Both Main & EC firmware flashed +VCC_CORE "PL14" = 1.67v +VCC_CORE "PL14" = 9 ohm "SR23Y i5-5200U" even with +VCC_CORE is up for 6 seconds, the CPU does not heat-up at all.. PM_SLP_S3#, PM_SLP_S4#, PM_SLP_S5# all rise for a millisecond and cut no shorts found anywhere is the processor dead ? 9 ohms doesn't look good.. I have measured an i7-5500U SR23W and it's around 45 ohms |
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| Виктор1985 [ 29 сен 2022, 09:32 ] | |
| Заголовок сообщения: | Re: HP 15-AC (LA-C701P Rev 1.0) No start |
mohammedsf писал(а): +VCC_CORE "PL14" = 9 ohm "SR23Y i5-5200U" mohammedsf писал(а): is the processor dead ? The proc is dead, normal resistance of this proc must be near the 40 ohm, да вы и сами все знаете)) |
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| mohammedsf [ 30 сен 2022, 03:03 ] | |
| Заголовок сообщения: | Re: HP 15-AC (LA-C701P Rev 1.0) No start |
Yes he is a corpse.. I've injected 1.7volts to find if there's a shorted capacitor in the line, nothing was found and the processor started heating-up consuming 370mA I don't have the tools to replace him, thank you. |
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