i could not find a supplier for a conductive ink of here in the philippines..
does someone know a substitute for it?
does someone know a substitute for it?
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Re: Broken circuit on laminated PCB of laptop keyboard
scratch off the mask and solder on a wire bridge. re- coat (lacquer, spray paint, whatever works for you).
i found this to be much more reliable than the ink (you mean the epoxy/silver mix, right?)"Every normal man must be tempted at times to spit on his hands, hoist the black flag, and begin slitting throats." - H.L. Mencken
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my system is p5ql pro asus mobo , logitech keyboard ps2 keyboard (more than 10 years) .
my place use to get some power drip for a second ,at that time , pc shuts and restarts itself , it dint cause any problem till now , once or twice i noticed , i am not sure if it was exactly at power drip time or normal time - both keyboard and ethernet lan stopped working , the keyboard would lose power i mean led lights-num lock caps lock would not stay on , no light at etherbet cable too..then i would restart the pc - then its all good .
few years back ps2 mouse stopped working, but ps2... -
Hello
i have following problems on HP 850 G2 laptop and 840 G2 laptop. After win11 update 24H2 the keyboard and touchpad stop working. I delete the keyboard from device manager and restart : work. If i shut down the laptop and restart after 5 min the problem apear again: no keyboard and no touchpad active. I have used also hp driver from oficial sit but no luck. I have modified with regedit " i8042prt Start REG_DWORD with 1, but no suscces. Any ideea? -
Can I use an external keyboard with a modern (as of this post) laptop from, say, Dell?
I am worried about durability because I am a cheap, frugal person. I suspect an external keyboard would extend the life of the laptop. I have always been a desktop person, since my AMD 386DX-40, and I really don't know about laptops (though the current Dell products look like they are fanless, which eliminates a big failure point).
(Also I prefer the "clicking" "Unicomp" keyboard, which is still made an hour or two away from me in Lexington KY, using the same equipment... -
So, I have a really bizarre issue that I'm struggling to identify the cause of. Working on an 820-02020 board with some bizarre keyboard/input-source character mapping. My suspicion is a possible damaged SPI ROM (U1970), perhaps, but I'm really not sure in this case:
1. The issue is pretty weird, but when installing MacOS, I noticed my WiFi password did not work. I quickly realized the special characters (!@#$%^& etc) were not mapping correctly.
2. I noticed the keyboard layout/input-source is defaulting to JAPANESE every single time I restore the board. I am not... -
My computer does not detect the microphone. When I opened the laptop, I discovered that the sub-board was missing screws, and the keyboard had been replaced by plastic welding (the keys came loose because it was not secure). On the board, I found that a part of it was broken (I am not sure whether it was broken by the person who replaced the keyboard or if the loose keys caused the damage, but I could not find the broken piece inside the laptop). In the broken area, I saw some circuit traces, but I am not sure where they were connected to. If anyone has this board, could you please help me identify...09-10-2025, 06:03 AM
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