Denniske1976
Experienced Member
Hi everyone,
I've finally started cleaning and repairing my old Compaq Portable III and I have a few questions:
1. There is 640K in de machine, on the mainboard, and also another expansion with 512K. However, only 640K is counted at startup. AFAIK all is configured correctly. Is there a reason why it won't show the extra 512K? (other than the switches not correctly set). From the manual, I can't really seem to find any setting for extra expansion RAM. Only the expansion board itself has switches for configuring if there's 512K or 2MB on it.
2. Second: the keyboard cable completely desintegrated around the DIN plug and where it enters the keyboard, also the coil itself had gone stiff/hard. So not much to do with that and keystrokes would only respond one third of the time. So, I cut off a cable from another keyboard that had the right coil and soldered that in. Problem I have now is that I get "Keyboard error, press F1 to continue" at boot and the system beeps as if a key was locked down. I did get the pinouts from standard AT 5-pin DIN plug pinout schemes. And wrote down what pin was what color inside the keyboard, to reflect what I soldered on the DIN-plug. Any ideas? It shouldn't be much harder than pin1 connects to pin1 etc... also tried the pin1 connects to pin3 and pin5 to pin4 etc (so male-female setup). Is there a difference for this particular keboard maybe?? Because it only has F1 to F10 keys, maybe this is an XT keyboard? But the pinouts are equal for those right?
Thanx for all the help again!!
Dennis
I've finally started cleaning and repairing my old Compaq Portable III and I have a few questions:
1. There is 640K in de machine, on the mainboard, and also another expansion with 512K. However, only 640K is counted at startup. AFAIK all is configured correctly. Is there a reason why it won't show the extra 512K? (other than the switches not correctly set). From the manual, I can't really seem to find any setting for extra expansion RAM. Only the expansion board itself has switches for configuring if there's 512K or 2MB on it.
2. Second: the keyboard cable completely desintegrated around the DIN plug and where it enters the keyboard, also the coil itself had gone stiff/hard. So not much to do with that and keystrokes would only respond one third of the time. So, I cut off a cable from another keyboard that had the right coil and soldered that in. Problem I have now is that I get "Keyboard error, press F1 to continue" at boot and the system beeps as if a key was locked down. I did get the pinouts from standard AT 5-pin DIN plug pinout schemes. And wrote down what pin was what color inside the keyboard, to reflect what I soldered on the DIN-plug. Any ideas? It shouldn't be much harder than pin1 connects to pin1 etc... also tried the pin1 connects to pin3 and pin5 to pin4 etc (so male-female setup). Is there a difference for this particular keboard maybe?? Because it only has F1 to F10 keys, maybe this is an XT keyboard? But the pinouts are equal for those right?
Thanx for all the help again!!
Dennis
