Pls post more tutorial videos. I am also trying to repair (battery damage) my TWO PC-XT motherboards with all components and cards in perfect condition.
Hi, I have a question to these yellow cables. I'm fixing an 5160 board that had the same modification. As I thought it's a custom mod I removed. Was fighting myself through different faults (capacitors, etc) but board does not come to life (followed steps on -0°). Do you have any idea what kind of mod this is? so maybe I could find additional hints what is wrong with my one. Followed the stops
Those are not mods - they're factory installed bodges and without them the board absolutely wont work. I hope you took a photo before you removed them.
nope, but you have everything on video so that I can reverse engineer. Thanks for making these kind of videos :). Saw boards of same year that do not have these installations and they work. Could imagine that some chips were out of stock, so they installed different ones and made manual modifications because of this. Now that I've removed the installation it is totally plausible that the board is not working (no IRQ0, etc) @@AndersNielsenAA
Is it just me or is the speaker in a 5160 louder than the one in a 5150? I have had both, and when I put together my 5150 back in 2010-2011 I noticed that the speaker in it was disappointingly quiet compared to the 5160 I had as a kid. My 5150 is from 1983, the year I was born, but I'm not sure when in 1983. I guess I need to look at it again. It actually has very low hours since it was originally a diskless system which came out of a trial of a CCTV based training system at a fort on the east coast.
Could also be a leaky BIOS battery that destroyed something. Since it's not an exact XT clone I would start by checking the data and address lines on the BIOS ROM for activity. Or remove it and read it - it looks socketed from what I can find online.
Haha. You finally ran into a case where you actually wanted to concatenate files, and you still got bash redirection to do it! `cat` could have sworn you were going to finally give it more than one argument.
or just burn the bottom half of the ROM and ground the extra address pin. EDIT: or put a different BIOS on it and do the same with the other ROM and hook the extra address pin up to a switch. Switchable BIOS!
@@senilyDeluxe I think the reason it didn’t work the first time was that the pin A15 is connected to is actually pulled high (or connected to 5V) - so this was easier. Alternatively I could’ve just burned only the top half but that seemed pointless. I guess I could check the technical reference to see how A15 is actually connected.. but for now it works.
Very good, im glad you were able to get it working.
Happy to see it worked, and can’t wait for more!
That is a good sound I like it. Excited to see this more
This is exactly what I needed
Pls post more tutorial videos.
I am also trying to repair (battery damage) my TWO PC-XT motherboards with all components and cards in perfect condition.
Nice work getting to POST! Curious as to what your tablet is and what you are able to use it for?
The tablet is a cheap table oscilloscope :) It works.
Fnirsi 1013D
Good job
Thank you!
Cool, check the ROM is not something I would check first. I have a 5160 to check as well, it is complete with the keyboard, but no screen.
Hi, I have a question to these yellow cables. I'm fixing an 5160 board that had the same modification. As I thought it's a custom mod I removed. Was fighting myself through different faults (capacitors, etc) but board does not come to life (followed steps on -0°). Do you have any idea what kind of mod this is? so maybe I could find additional hints what is wrong with my one. Followed the stops
Those are not mods - they're factory installed bodges and without them the board absolutely wont work. I hope you took a photo before you removed them.
nope, but you have everything on video so that I can reverse engineer. Thanks for making these kind of videos :). Saw boards of same year that do not have these installations and they work. Could imagine that some chips were out of stock, so they installed different ones and made manual modifications because of this. Now that I've removed the installation it is totally plausible that the board is not working (no IRQ0, etc)
@@AndersNielsenAA
for those who are interested as well, found a nice picture here: minuszerodegrees.net/patch_wires/5160_motherboard_with_patch_wires_1.jpg.
Is it just me or is the speaker in a 5160 louder than the one in a 5150? I have had both, and when I put together my 5150 back in 2010-2011 I noticed that the speaker in it was disappointingly quiet compared to the 5160 I had as a kid.
My 5150 is from 1983, the year I was born, but I'm not sure when in 1983. I guess I need to look at it again. It actually has very low hours since it was originally a diskless system which came out of a trial of a CCTV based training system at a fort on the east coast.
Since the schematics are available for both it shouldn't be too hard to check if the drive strength is higher for some reason :) I wish I had a 5150.
I got one of these at a house clearance, first thing it did was blow a cap when i turned it on.
I bet! I’m certainly happy I didn’t get hit with tantalum shrapnel. Checking the lines for shorts is no guarantee either.
I wonder if my Schneider EuroPC is suffering from a bad BIOS ROM too, as it doesn’t POST either…
Could also be a leaky BIOS battery that destroyed something. Since it's not an exact XT clone I would start by checking the data and address lines on the BIOS ROM for activity. Or remove it and read it - it looks socketed from what I can find online.
Actually did pull it and was able to read it. Need to probe it to see if there’s activity. Thanks for the advice!
Haha. You finally ran into a case where you actually wanted to concatenate files, and you still got bash redirection to do it! `cat` could have sworn you were going to finally give it more than one argument.
I know, I know..
I have a special skill for doing oneliners in two lines and opposite :)
Should’ve been: cat rom.bin rom.bin >> romx2.bin
@@AndersNielsenAA Yeah, what you did was fine though because bash history did half of the work.
or just burn the bottom half of the ROM and ground the extra address pin.
EDIT: or put a different BIOS on it and do the same with the other ROM and hook the extra address pin up to a switch. Switchable BIOS!
@@senilyDeluxe I think the reason it didn’t work the first time was that the pin A15 is connected to is actually pulled high (or connected to 5V) - so this was easier.
Alternatively I could’ve just burned only the top half but that seemed pointless.
I guess I could check the technical reference to see how A15 is actually connected.. but for now it works.
@@AndersNielsenAA That would have been my other guess. Either the pin was high or floating.
Why'd you cover up the numbers at the bottom with a piece of paper
I'm assuming a previous owner put it there to write some details that have since vanished :)
@@AndersNielsenAA ah, ok instead of paper I have my motherboard's manufacturing number on it
I also have an IBM 5160. I just need to repair it. This video will help me immensely
Yay! That's what it's for :)
@@AndersNielsenAA Thank you!
name O&O
Huh?