This old keyboard is in the father's home warehouse, brand: COPIA "Beijing Kebia System Engineering Co., Ltd.", Model: 8001. At that time, Dad organized the warehouse to find a lot of old keyboards, the interface is a big round, pick a feel good left, when it was small, do not know what mechanical keyboard, because that era mechanical keyboard really a lot, and The keyboard is basically a few hundred dollars, after all, it was still the era of learning machine, 286 and floppy disks.
Then I slowly came into contact with the mechanical keyboard, so suddenly I remembered that there was such a thing in my family's possession (Hey, my family said that I was too fond of collecting rubbish), so I turned it over and pulled off the keycap to see...hoho,Cherry's green axis ... It seems that when I was a kid, I was very sensitive to the requirements of my opponent.
This is the most primitive state, of course, A surface is still, when it was ready to begin renovation and renovation. In many of my bills, it all appeared. If you want to see it, you can find it yourself.
The entire keyboard is taken out of the housing and is very heavy. The steel plate is very thick. The paint finish is also very good. There is no frosting and no trace of rust.
A second-hand keycap was scouring the internet and is being tested in the upper body.
The three lights have different colors, because the original is only a caps lock indicator, and the other two are soldered to me in junior high school.
After the Amoy keycap has several function keys that are not suitable, some use the original keycap. After the test is completed, all of them are removed, and the key caps are started (throwing directly into the bucket, washing the detergent, and giving the home Dabao a variety of brushes...). The shaft body and the keyboard body are cleaned with a dust brush and a cotton swab.
This is the interface of the data line and has a ground shield. The purpose of this interface is to modify the keyboard interface later, or to improve it.
Chip 1.
Chip 2.
Change the wiring is already done, change with the bread line, because to use the bread line of the pin, did not use the DuPont line because the pin is not appropriate.
Line rules, first with gold finger tape fixed, and then wrapped with cashmere wiring harness tape.
Haha, the mystery is here, the pin is directly connected to the USB to PS/2 keyboard port, the definition is to compare the big round mouth to PS/2, and then use velvet tape to fix the connector and wiring harness. There is plenty of space in the keyboard shell, so it is easy to fix the traces. This also reduces the process of changing the welding line.
Looking for a good quality, moderate length USB extension cable to do the interface line, it is appropriate, from the original data line hole out, right.
Let it shine in the work of the unit.
welfare:
DELL Bluetooth folding keyboard, when it was received, smart phones are not yet popular, or the era of PDA, was Guangzhou travel 200 income, Japanese version, feel very good, with two 7 batteries, the keyboard should be iGO generation Workers, smart phones and platforms are now popular, it is only to play their own ability. Haha, really some peripherals are at the forefront of science and technology.
This little guy also got it very early and early. Like the size of a credit card, it uses two 7-cell batteries and a clip-on stand on the back. It is designed to hold the flip phone's keypad behind the keyboard, and then The phone becomes a full keyboard. Remember that a user guide card for this small Bluetooth keyboard is a Samsung Symbian phone flip.