I am using samaung sdk3500 keyboard yesterday ps2 pin of keyboard is damaged then i cut the wire and i have another ps2 pin i try to fix that ps2 to this keyboard wire so please give me the combination of wire color or ps2 pin structure
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I'm going to need even more information; The devices that use PS2 connections, which device is it, and how many of those devices do you have?
One thing that might be a problem, if the issue you see is intermittent, I would check the PS2 connector and see if the pins are bent or broken. PS2 connector pins sometimes will bend or break and this can cause some connection issues if not completely stop the keyboard/mouse from working... Also given the age of your PC the PS2 port may just be bad, but this is not a fatal injury to a computer.
Replacing the Keyboard and Mouse with a standard USB keyboard and mouse, should resolve all of your issues.
PS2 is an older technology that keyboards and mice used to run on; Now however USB connections are used.
Further more, if this an HP Desktop with 2 USB ports on the front, and 4 USB ports on the back, you will want to avoid using the 2 USB ports on the front, especially on older HP and Dell Desktops, the reason is the power supplies often do not have enough power to run multiple USB devices on the front USB ports.
The back ports should be fine regardless of the number of devices.
That is a circuitry problem. You can try this following procedure if you can.
--unscrew and open your mouse casing.
--you need a tester (VOM) to test the wiring continuity. If one of the wire is open connection you can replace it with a new USB or PS2 connector. If all the wire is shorted, proceed to the next step.
--Check if the microswitch is ok by testing the pin connection using the tester. Microswich has 3 pins, test only the soldered pins. When you press the switch, it might be shorted. If not, replace it with a new microswitch.
Microswitch and USB/PS2 connector are available in all electronics shops.
First, I would try booting to Safe Mode and see if that gets you to Windows. If it does, then it's a driver issue that can be relatively easily fixed by "Uninstalling" the keyboard in the Control Panel/Device Manager, then rebooting and letting the system reinstall the driver.
If that doesn't do it, then it sounds like the (assuming you're using a PS2 keyboard) PS2 keyboard plug port may be compromised (ie., damaged). Try using a USB keyboard instead and see if that solves your issue (as trying to repair a PS2 keyboard port is not practical).