Hi I need help about this toshiba satellite L10-102 no power I already check dc in jack 19v is present.I don't know next step to check. Please everyone can guide me and help me to solve this problem. Thank you in advance
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Re: TOSHIBA L10-102 No power
Disconnect the battery and plug in the charger. Start following the voltage..
1) Check for 19V at the DC jack (which you've done) and then on both sides of fuse PF1.
2) Check both sides of dual input diode (goes in pins 1-2 and comes out on pin 3). If voltage doesn't get through, it's bad.
3) Check both sides of input MOSFET PQ21 (comes in pins 5-8 and goes out pins 1-3)
If voltage does not get through PQ21...
4) Measure gate voltage on pin 4. Something around 25-28V means the MOSFET should be on, so it is bad. 0-19V means it is being told to stay off, so try to investigate why that is...
5) Check for a short to ground. With multimeter in diode mode, put red on ground and black on PQ21 pins 1-3. Reading of < 100mV is a short.
If in doubt, measure voltages on all pins of PQ23, PQ24, PQ25, PU1, PU2, etc, and post them here.
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Hi all!
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. 😅
I found the boardview for this laptop in the forums here, and am able to open it on my PC with FlexBV.
https://www.badcaps.net/forum/troubl...-hardware-devi... -
Hi all,
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