I received a laptop that has many issues,has been torn apart, put back together (somewhat), and contains non OEM parts.But I counldn't say no to FREE! I am in the process of identifying parts and specs. But I noticed 2 switches on the mainboard that look very tampered with, 1 is a KHS04 relay and the other is an OTAX KHS 10 relay.I've been able to find the product but not the switch positions in relative to my board.Can you direct me to the schematics for these switches?
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You can order a replacement for about $3-$5 But there's a lot of labor involved, the laptop has to be completely taken apart. DC jack will have to be soldered, then the laptop put back together! Probably 2-3 hours of work.
If you take it to a professional their prices will vary from place to place. Anywhere from $75 - $150
To be honest there's no simple answer, some laptops are easier to take apart, and will be cheaper to fix.
If you set your BIOS password but have forgotten what it is, then the simplest way to reset it is to remove the BIOS battery. You need to be somewhat technically proficient to do so, especially if it's the BIOS on a laptop you want to reset. Some machines have a BIOS reset button on the back of them to reset the BIOS after a failed overclock, but I've never seen such a function on a laptop. You may also try typing in "Toshiba" as your BIOS password if that's the make of your laptop as it's been use a backdoor BIOS password in the past.
You will have to clear the CMOS. This can be done by opening the laptop and locating the jumper "CMOS". There will be 3 pins. Two of them will be jumped together, switch the jumper to the other two pins and press the power button. Then return the pin back to the original two pins and close the laptop. Your done. Login to the bois without a password.
There are so many things you could have done wrong, it would take too long to write. Loose connections, hooked something up incorrectly, connections switched, did not ground yourself, static electricity, put screws in the wrong place and one of them shorted out the motherboard, .......not much of a solution, but there are way too many possibilities.
Turn off power, remove battery pack, remove all screws on the laptop casing, then pull apart. Slowly pull cd rom cable attachments straight out. Make sure you do not bend the pins. Then insert new rom drive, then put pc back together, boot and install cd rom drivers.
well pull the battery and power, if your lucky it didnt ruin the motherboard that said the only fix to clean it is take EVERYTHING apart soak it in isorobic alcohol gently clean it with a non lint cloth or sponge, let it dry for a day or 2, put it back together and hope.....