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that and that
kinda look similar i tried shorting the nsbaon#(idk spelling) to ground but no power at cpu vrms
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NBSWON#(correct spelling)Comment
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voltage on nbswon# ?Comment
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0.4-5 ish cuz of the low battery on multimeterComment
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Like I don't have the fans attached will it be a problem which is stopping it from starting?Comment
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Okay now after installing a new battery in my multimeter shows zero volts
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0.08v to be very preciseComment
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are u using lab psu or usb-c psu ? do u have amperomether for usb-c ? just to know how many amp it's drawing.
voltage should be 3,3 for nbswon.
this is power sequenze for similar notebook.
without fan, pc should start at least for few seconds and cpu should get warm. then power off without heatsink.Comment
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Usb-c psu, I don't have a way to know current drawComment
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Like idk what is the nbswon pin actually is and I am just assuming the thing I circled isComment
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this is the image of second board whereis the power con
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i also checked this is it useful?
​3 pins on the left side are 3.3 v
Attached Filesif you find these attachements useful please consider making a small donation to the site
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i shorted it all still ain't starting (the connector above)
ec chip getting 3.3v and 1.8v not getting hot sitting cold while doing something (i was checking all the pads near ec chip there were some weird voltages like 0.4-0.8v bios chip also has 3.3)Comment
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i just saw somewhere that if the power button is not pressed and you reset the bios the laptop will start?(dont see any way to reset bios on this thing)
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one more thing is it possible like i need to replace the caps i removed like i have a other laptop motherboard and take a big ceramic (only 1 of like a higher voltage and current value presumably) capacitor and place there .
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Yep I think that's itdon't ask me how
Saw the board view of some other board with this chip
there it is
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we need board code to find schematic and boardview.Comment
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Some other board with same ec chip with bga packageComment
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grazie mille ora funzionaComment
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so notebook is powering on and giving picture ?
however is better to get boardview and schematic to replace caps with right value.Comment
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I have a water damaged Toshiba TV that was hanging nicely on the wall then over the summer we had a new multi-million pound boiler system put in and right where this TV was hanging is a nice new pair of water pipes for the radiators...
The TV hasnt been used for a fair few months but it was needed again the other day and needless to say, it didn't power on or show any signs of life (no standby LED etc). After checking the fuse in the plug (and that the socket it was plugged in to worked) I decided to get up some step ladders to take a closer look and low and behold! It looks like... -
Hello friends, so I have got a "water damaged" (or cola/beer/coffe .. something dark and sticky) G513I system - which has the board and schematics from this thread. After cleaning up all the visible sticky residue with water and detergent (thankfully mostly on the top/keyboard side), I have a partial success. IPA was of no use for cleaning this.
Using a bench power supply on the DCIN jack (as it seems that the PSU keying pin is not wired at all - series resistor R6003 is not populated), and using a shoring wire for the power button (either pin 5 on CN251 keyboard, or one... -
HELP! audio board+its flex+powerbtn flex water damaged (an hole on audio board)!!! chnged both, but i have 5v on both ports:
https://files.fm/f/6gjpqyjw3q
here some measurements
ppbus_g3h 12,29v
PP3V3_G3H 3,29v
pp3v3_upc_xa_ldo pp3v3_upc_xb_ldo 3,27v
PP1v8_UPC_XB_LDOD PP1v8_UPC_XA_LDOA 1,8v
PP1v8_UPC_XA_LDOD PP1v8_UPC_XA_LDOa 1,8v
PP1V1_UPC_XA_LDO PP1V1_UPC_Xb_LDO 1,1v
with battery connected, as soon as i connect the cable, i see direclty 20v, but stuck at 0,0250 -
Hi,
I have water damaged Dell Latitude E5590 around charging ic.
Laptop was dead but i replaced some components like capacitors, resistors, resoldered charger(intersil 9538h) but traces under PQ904 dual mosfet(AOE6936) was burnt.
I rebuilt traces and both mosfets(PQ904 and PQ905) and after all this work laptop started turning on.
I dont have battery so i want to be sure if laptop behaviour is normal before buying.
On PL902 i have weird voltage around 5Volts, on battery socket voltage looks normal - 13.5v.
Is this voltage on pl902 normal?... -
Like title says A2141 came in with Water Damage, customer desperately wants the data.
The actual water ingress doesn't appear too bad it sat for a day but was very dusty internally. I have no idea why L8504 was arced there is no apparent moisture there or around the LVDS cable; however, the LVDS to screen screw studs had popped off at some point and somebody tried securing it with kapton tape.
I had to create a micron wire pad jumper to reconnect the south side of the L8504 since the primary pad was blasted down to the vias.
That said after cleaning up the...
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