Commodore 1351 Mouse Repair

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Jan Beta

Jan Beta

Күн бұрын

I'm troubleshooting and repairing a Commodore 1351 mouse for the C64/C128. // Kindly sponsored by PCBWay - Get your first PCBs free! - www.pcbway.com/
Most inspiration for my approach came from this website: www.monkeyspeak.com/1351/repai...
GadgetUK164 took a different approach to repair a similar problem in his video here: • Commodore 64 (C64) 135...
TIME STAMPS:
0:00 Introduction to the 1351 Mouse
2:30 Sponsor Message
2:57 Disassembling the Mouse
4:42 Mechanical inspection
5:26 Removing the PCBs
6:22 Cleaning the LEDs and Sensors
7:49 Checking Cable Continuity
10:26 The Resistor Problem
15:43 Checking the LEDs
16:32 Checking Voltage Levels
18:45 Determining Resistor Values
25:58 Fitting new Resistors
27:19 Testing the Mouse
---------------------------------------­-----
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#JanBeta #Commodore1351 #Repair #PCBWay

Пікірлер: 154
@TomLokovic
@TomLokovic 3 жыл бұрын
Hey Jan, I'm delighted that you found my writeup and schematic useful. I'm a big fan of your channel, so seeing this pop up in my feed made my day! And any time a dear old Commodore device is given new life it makes me happy.
@JanBeta
@JanBeta 3 жыл бұрын
Hey Tom, thanks so much for sharing your mouse repair with the world! It was a massive help and hopefully continues to help people bringing their good old 1351s back to life. :)
@thechillhacker
@thechillhacker 2 жыл бұрын
Thanks to both of you. I have a 1351 on it's way from Germany now, and I am pretty sure I will be following basically the same procedure to give my C128 and 64 a usable mouse! Perhaps I'll record mine as well, not that I think there's too much to add to the great work you both have already done.
@GadgetUK164
@GadgetUK164 3 жыл бұрын
Thanks for the mention Jan =D I can't think of a more crusty video I've done lol! The good news is my mouse continued to work ever since! Keep up the great work =D
@JanBeta
@JanBeta 3 жыл бұрын
You are very welcome Chris, I found your video very informative. Plus there's only very few videos available on the issue. Great that your mouse still works, gives me hope that mine will continue to work for some years, too, hopefully. :)
@keanebgONE
@keanebgONE 5 ай бұрын
Thank you Jan! 3 year later your video helped me repair a perfect looking but completely non functional 1351. Great stuff!
@JanBeta
@JanBeta 5 ай бұрын
Awesome! Glad that my video helped. I think this is one of the most common faults with these 1351s. :)
@rangercv4263
@rangercv4263 3 жыл бұрын
Excellent job Jan. Never expected warping as a cause of mouse failure or that changing the resistance could work around such a mechanical failure. Shout out to the gentleman whose web site clued us into the problem. I will definitely check out what he has to offer. Cheers
@JanBeta
@JanBeta 3 жыл бұрын
Thanks! It might still be a mix of transistors degrading, LEDs degrading, plastic degrading. But I think the plastic is the most reasonable explanation.
@madmodders
@madmodders 3 жыл бұрын
The mouse works in either port. Try loading the "better driver" from the disk, and you can select which port you use. :) For some strange reason, when I was young, I mutilated my 1351. I desoldered the cable and used it on an Amiga mouse, and made experiments on the innards so the ball cage is in pieces, and the circuit board is also in pieces. And the IR LEDs and photo transistors are gone... That will be a true resurrection the day I find the time.
@stefanpiskaty8650
@stefanpiskaty8650 3 жыл бұрын
Perfect timing! I was about to give up on my horizontal-only Amiga mouse when your video pushed me in the right direction - thanks a lot!
@JanBeta
@JanBeta 3 жыл бұрын
Ah, excellent! Hope you managed to fix the mouse!
@dragdusan86
@dragdusan86 6 ай бұрын
Hi Jan, fixed my 1351 mouse following your instructions here. Values for resistance I used same (easy way obviously 😂). I’m using final cartige III works like a charm. When mouse is setup in joystick mode (keep pressed right click during boot) and final cartrige can be configured as joystick to be used, it also works perfect. I played commando with it and it works (not easiest thing to do but it also works) Thank you for posting this it helped a lot to me😊
@carnright
@carnright 3 жыл бұрын
This was so much fun to watch! Your enthusiasm and happiness made this as much fun to watch for your adventure as it was for the technical aspects :-D Thank you very much for this video!
@JanBeta
@JanBeta 3 жыл бұрын
Oh, thank you Michael! :)
@TRONMAGNUM2099
@TRONMAGNUM2099 3 жыл бұрын
Yeah Jan!!! Grats on the fix!! Nothing ever comes easy on this channel!
@johndoe1254
@johndoe1254 11 ай бұрын
Hey Jan... Even after 2 two years this video was an excellent tutorial for me to fix my 1351 successfully. 👍
@JanBeta
@JanBeta 11 ай бұрын
Nice! Glad this was helpful. I think replacing those resistors is the way to fix many broken 1351s, seems to be a very common fault! :)
@gertsy2000
@gertsy2000 3 жыл бұрын
Jan Beta, a very good fix. I agree with you, whatever tolerances that have changed in the last 30 years are unlikely to change further. A permanent resistor fix is simple, elegant, and the most effective. Well done!
@gallgreg
@gallgreg 3 жыл бұрын
Nice troubleshooting and repair!! Congrats on getting the mouse working like new!
@megan_alnico
@megan_alnico 3 жыл бұрын
I would have loved one or these back in the day. I used to have to use GEOS with a terrible joystick. I don't know how I did my school work on it, but somehow, I did.
@JanBeta
@JanBeta 3 жыл бұрын
Ah, it worked reasonably well with a joystick, too, once you got used to it. I worked without a mouse for years, too. :)
@megan_alnico
@megan_alnico 3 жыл бұрын
@@JanBeta I looked it up and I had a grey and black one called "The Boss". I think it was defective because it was impossible to be accurate with it. Somehow I drew stuff in the paint program anyway. I remember the fill tool taking forever to fill an area. I did like GEOS in general though and wanted a DOS port when I moved on to my 286.
@8BitNaptime
@8BitNaptime 2 жыл бұрын
It's silly but when I bought a 1351 back in high school I felt like I had a "real" computer with GEOS... I thought it was hilarious that geoPaint had the same patterns as the Macs I saw in the store.
@jamesmoates8490
@jamesmoates8490 3 жыл бұрын
I had to download your music it makes me feel like I am back in the 80s. Enjoy watching your videos .
@JanBeta
@JanBeta 3 жыл бұрын
Yes, Focus 10 makes great tracks. :)
@00Skyfox
@00Skyfox 3 жыл бұрын
Joystick/1350 mode works great for certain games and programs. I use that to play Alcon (Slapfight) and it works so much better than a regular joystick, and with paint programs like Doodle that don’t natively have mouse support it can work fairly closely to the mouse input in Geopaint. My 1351 still works after 30 years but I do need to replace the left button.
@HAGSLAB
@HAGSLAB 3 жыл бұрын
What a great result and informative video. Well done! Thank you! :)
@JanBeta
@JanBeta 3 жыл бұрын
Thanks! :)
@admirerofclassicalelectron2858
@admirerofclassicalelectron2858 3 жыл бұрын
Congratulation on saving another piece of classic hardware. Nice! But the oscilloscope is your friend and the Min/Max function of your Fluke is another one. It would be much easier to determine the maximum voltages using this.
@JanBeta
@JanBeta 3 жыл бұрын
Ah, didn't think of the luxury functions. Thanks! :)
@tullyal
@tullyal 3 жыл бұрын
Another great fix !!! Always entertaining and informative. :-)
@flymario8046
@flymario8046 3 жыл бұрын
Good going man! I expected to see variable resistors connected to the shafts instead of optical detectors. Impressive. Loved the video.
@JanBeta
@JanBeta 3 жыл бұрын
Thanks! Yes, these were quite sophisticated really. :)
@TheBredeBert
@TheBredeBert 3 жыл бұрын
OMG that mouse! such nostalgia, such joy, such frustration but such love we had a similar one with our A500+
@JanBeta
@JanBeta 3 жыл бұрын
Haha, yes, they were not very good. Still heartwarming to be able to use one again for me. :)
@8BitNaptime
@8BitNaptime 2 жыл бұрын
@@JanBeta They were great! As long as you cleaned out the desk cheese from the rollers regularly.
@parrottm76262
@parrottm76262 3 жыл бұрын
Yes! I have one of those. Now I know how to maintain and fix it. Thanks so much!
@JanBeta
@JanBeta 3 жыл бұрын
You are welcome, hope it works for you!
@tonyfishlock7240
@tonyfishlock7240 3 жыл бұрын
Nice to see your C64 back on the bench 😁 I have an Omega Mouse that seems to be doing the same sort of thing so that gives me something to look at thank you
@tonyfishlock7240
@tonyfishlock7240 3 жыл бұрын
Amiga mouse 😂😂
@JanBeta
@JanBeta 3 жыл бұрын
Ah, that explains why it's not really working on the C64... ;)
@Brewskii2117
@Brewskii2117 3 жыл бұрын
This was way more interesting than I thought it would be. I figured you'd just be pulling lint off the mouse rollers :D
@JanBeta
@JanBeta 3 жыл бұрын
A tiny bit more complicated than that... ;)
@Eskodisk
@Eskodisk 3 жыл бұрын
I have the same problem with my 1351... Was about to throw it away... Thank you for this great fixing video.
@SaintKaede
@SaintKaede 3 жыл бұрын
All that to get a mouse workin', but so it goes, I actually haven't seen much of the mouse let alone the inside of one so there's that, but good to see that it can be fixed if needed, Danke Jan!
@JanBeta
@JanBeta 3 жыл бұрын
Thanks! Yeah, quite some effort but worth it for me in the end. I'm really happy to be able to use the mouse again. :)
@ColdRFusion
@ColdRFusion 3 жыл бұрын
Commodore, always trying to save a cent which costs us decades later! Nice repair 👍
@Brettski777
@Brettski777 3 жыл бұрын
Hi Jan . Keep the videos coming ! . All the best :-)
@JanBeta
@JanBeta 3 жыл бұрын
Thanks Brettski! :)
@RocketGeek
@RocketGeek 3 жыл бұрын
Now we just need a video on the C=1520 plotter/printer - Where to get the replacement gear that always splits, and the pens.
@PJBonoVox
@PJBonoVox 3 жыл бұрын
I figured out the problem pretty early on. You were clicking the circle, but the triangle was actually at the top middle.
@JanBeta
@JanBeta 3 жыл бұрын
Haha, thanks! :D
@daskarman
@daskarman 3 жыл бұрын
Awesome ! I ended up retrofitting My with Logitech optical pickup Delete the ball completely Looks original but works much better !
@JanBeta
@JanBeta 3 жыл бұрын
Oh, interesting. I saw the conversion kits for the Amiga mice, too. Seems to be a good option. :)
@daskarman
@daskarman 3 жыл бұрын
@@JanBeta keep doing what you're doing Jan Commodore stuff needed to be preserved it's part of our history !
@tommyovesen
@tommyovesen 3 жыл бұрын
Ahh, it's friday evening, weekend, I pop a beer and watch Jan Beta. Thanks:)
@JanBeta
@JanBeta 3 жыл бұрын
Hope you enjoyed! :)
@daw7563
@daw7563 3 жыл бұрын
I have experienced that really old LEDs (and opto coupler stuff) for some reason degrade over time, even if not in use. The result is that they get more dim and require more power to perform as expected, and in voltage dividers this can really make a big difference.
@JanBeta
@JanBeta 3 жыл бұрын
Yes, I saw the same effect in some old receivers with LED indicators. Some of them were darker than others in the same unit so I guess there is some sort of degrading going on.
@gorjy9610
@gorjy9610 3 жыл бұрын
all LEDs do lose some brightness over time, IR LEDs aren't different. Old ones are better than modern versions, you will not find any working mouse from these days working after 20 years for sure. This way of fixing a issue (replacing just resistors) is better than changing a holes in plastic but real fix would be replacing LEDs and resistors if necessary after that.
@8BitNaptime
@8BitNaptime 2 жыл бұрын
Yes, something changes, in optocouplers it's the CTR, current transfer ratio that changes. Why, I don't know. I hope in my 1351 I can change out the LEDs and phototransistors or diode or whatever. They seem to be discrete parts.
@kaitlyn__L
@kaitlyn__L 2 жыл бұрын
@@gorjy9610 indeed, modern near-UV and phosphor LEDs lose almost all their brightness in about a decade. My 8 year old wifi router’s LEDs are impossible to see with lights on now, and in the dark you can only barely see them.
@RetroHackShack
@RetroHackShack 3 жыл бұрын
I found it very useful! :) I am having similar problems with my Atari ST mouse, so I am going to pull it out and measure my voltages to see if I am having the same problem.
@JanBeta
@JanBeta 3 жыл бұрын
Nice, hope it works for the ST mouse, too!
@sungsampandora
@sungsampandora 2 жыл бұрын
Thanks to Tom und Jan, my mouse is working again, the fault was on the y-axis (R8 and R9)
@MarkyShaw
@MarkyShaw 3 жыл бұрын
Nice!!! I'm so bummed. I have this same mouse, but the ball itself is missing. You'd think you could just grab any old mouse ball and it would fit, but sadly they do not! This ball appears to be a little larger than others. I wish I could find a replacement but I haven't been able to find it. Jan, if you have a micrometer around, could you by any chance let me know what the size is? Maybe I can find a replacement if I know the exact size.
@JanBeta
@JanBeta 3 жыл бұрын
I measured 250mm. If you can't find one, the balls from the Amiga tank mice should be the same. It's probably easy to find a broken one somewhere and steal the ball. ;)
@MarkyShaw
@MarkyShaw 3 жыл бұрын
@@JanBeta Thank you so much my friend!!! I really appreciate it! Hope all is well :-)
@craftsman123456
@craftsman123456 3 жыл бұрын
Nice detailed repair. I had the same issue. The plastic warps over the years and the signal weakens until it no longer works. I used the quicker method of making the hole that the beams go through to the sensor slightly larger. This solved the problem for me. I wonder how long your repair will last as the plastic will probably continue to warp. The pot method would at last allow adjustments. Someone needs to make a pcb of the board
@JanBeta
@JanBeta 3 жыл бұрын
Thanks! GadgetUK just commented that his mouse (he also did the physical modification) still works today, 4 years later. I wonder how long my repair is going to last but I suspect the warping and degrading of the plastics is a very slow process and I'm probably going to be good at least for some years.
@andrewlittleboy8532
@andrewlittleboy8532 3 жыл бұрын
Had to replace the infra red diodes on my amiga tank mouse also. The legs seemed to be corroded and must have went all the way up the legs inside the diode. You can still buy the LED's and in my Amiga mouse it solved the problem instantly.
@JanBeta
@JanBeta 3 жыл бұрын
Oh, good to know you can still get the infrared LEDs!
@Geomanb
@Geomanb 3 жыл бұрын
I have 2 of them: one dead, one working. In the end I only use the "Micromys V5" for it is excellent. Both 1351 are museum pieces now. Well perhaps I attempt an repair after viewing this video.
@JanBeta
@JanBeta 3 жыл бұрын
I have a TOM 2 adapter to use a USB mouse, too. Still find it more nostalgic to use an actual 1351. :)
@10MARC
@10MARC 3 жыл бұрын
Wow... So it is not so much the Resistors failed, but the amount of light changed, so the existing Resistors worked to well? Interesting
@ingodiekmann8321
@ingodiekmann8321 3 жыл бұрын
Hey Jan, it looks very professional to me. Thanks for your great videos. What's up to your work on that Tandy? :-)
@JanBeta
@JanBeta 3 жыл бұрын
Thanks Ingo! I'm still working on the Tandy, want to release the next video when I have actually made progress so it might be a while. :)
@ChargePumpable
@ChargePumpable 3 жыл бұрын
Hallo Jan, sehr schönes Fix-Video ! Danke. Hast Du mal die Vorher / Nachher-Werte verglichen ? Die Abweichung muss ja doch erheblich gewesen sein.
@GentryBa1
@GentryBa1 3 жыл бұрын
Hey Jan! :) I have to do the same thing on my two 1531 mice. One question left: Can you adjust the sensivity in GEOS to adjust the mouse-speed? Best regards from Bavaria, Matthias ;)
@LeftoverBeefcake
@LeftoverBeefcake 3 жыл бұрын
Just checked my copy of GEOS and there are acceleration and velocity settings for the mouse in the preferences manager.
@JanBeta
@JanBeta 3 жыл бұрын
Yes, as @LeftoverBeefcake said, at least in the >2.0 versions of GEOS there is acceleration and sensitivity settings. I remember there were patched third party drivers, too, that worked even better. But I didn't find any yet.
@GentryBa1
@GentryBa1 3 жыл бұрын
@@JanBeta Thanks, Jan! :) So maybe the user-feeling could be improved a little bit. Well, lets see that after completing the refurbishment of my CBM 8032.
@inbarraz
@inbarraz 3 жыл бұрын
Lol Jan, kudos for the חומוס עם צנוברים box on your table (@11:20) :-) Are you just using it for parts storage or did you actually try the Hummus?
@BocaRetroGames
@BocaRetroGames 3 жыл бұрын
Yeah ! Jan beta video!
@JanBeta
@JanBeta 3 жыл бұрын
Hope you enjoyed! :)
@stephenbruce8320
@stephenbruce8320 3 жыл бұрын
I have a draw full of those but for the Amiga and mixed in might be a 1351. Back in the day no one really knew just how meh those were it was all we had. If you moved it and the cursor moved it was cool. I have a draw full of those old Tank Jobbers that do work but I just don't like them so I either use the ones Commodore put out later for the Amiga or have a more modern optical mouse. I will have to look to see if I have a 1351 or not.
@JanBeta
@JanBeta 3 жыл бұрын
You can spot the 1351 by its bigger connector and the label on the bottom.
@herdware
@herdware 3 жыл бұрын
Electricky! Need to see if this is the same problem I have with my 1351.
@thechillhacker
@thechillhacker 2 жыл бұрын
Of course, for ComMAYdore, we can all cherish the fact that technically, the C64/C128 (and probably Amiga) used an optical mouse before it was cool. But as anything that came Tremiel's company, they were optical mice..with balls xD
@matthewsmith4574
@matthewsmith4574 3 жыл бұрын
My Amiga Tank mouse is essentially the same. The cable is fine, buttons work but no movement. Nearly the same internals (same brand and very similar layout) to this as as well...
@fawad.rashid
@fawad.rashid 3 жыл бұрын
Yah you fixed it !!!!!
@JanBeta
@JanBeta 3 жыл бұрын
Yes!
@RamLaska
@RamLaska 3 жыл бұрын
I wonder if it would be possible to make an adapter to plug in a USB mouse into the C=64 paddle port. Reading the USB mouse would be trivial, it's producing the variable voltage that the 64 is expecting that would be the challenge. I'm not sure, but I'm thinking the Raspberry Pi doesn't have any analog outputs. I wonder if a capacitor would be able to smooth out the output PWM well enough to make the C=64 think it's hearing from a 1351.
@JVHShack
@JVHShack 3 жыл бұрын
Two questions for Jan: 1) What model mouse is the Amiga equivalent? 2) Was that a hummus bowl chilling behind your laptop at 13:45? I couldn't read the language printed on it.
@mattnik
@mattnik 3 жыл бұрын
I'm pretty sure the same mouse worked on my Amiga 1000, we had one back in the late 80's when they first came out.
@JanBeta
@JanBeta 3 жыл бұрын
I think the Amiga mouse doesn't have a name, just says Amiga on the label, or just Commodore for some models. They are not compatible with the C64 mice. And yes, it's a hummus bowl. Can't read it myself, text is in hebrew, a friend brought it from a visit in Israel some years ago. It ended up as my trash bin on the workbench.
@mattnik
@mattnik 3 жыл бұрын
@@JanBeta Ah okay my mistake. The mouse on my Amiga looked very similar. Back to the days when compatibility was the exception not the norm! But that's some of the fun I guess!
@Zeem4
@Zeem4 3 жыл бұрын
Excellent video, however CSG = Commodore Semiconductor Group, not Commodore Software Group.
@JanBeta
@JanBeta 3 жыл бұрын
Oh, you are right of course!
@n2185x
@n2185x 3 жыл бұрын
If you know the desired voltage drop across the resistor, the actual voltage drop across it, and the actual resistor value, then you should be able to compute the desired resistor value to get you the desired voltage drop. Since the voltage across the resistor is the current through it multiplied by the resistor value (i.e., V = I * R), you would then have desired_voltage / desired_resistance = actual_voltage / actual_resistance ==> desired_resistance = desired_voltage * actual_resistance / actual_voltage. Now this assumes that the current going through the resistor will be the same regardless of the resistance that you're applying, and there will obviously be limits to that, but the above should get you in the ballpark, I'd think. Of course, there's no substitute for actual experimentation. :-)
@JanBeta
@JanBeta 3 жыл бұрын
Yes, Tom also pointed that out on his website but I thought it would be safer to experiment. :)
@n2185x
@n2185x 3 жыл бұрын
@@JanBeta Experimentation certainly is a more sure-fire way of approaching it. So I guess my question is: how do the values you got through experimentation stack up against the values that you would have computed using the above method? I would expect an almost exact match, within some relatively small margin of error (in reality, withing the margin of error of the original resistor values. The ones they used look like the 5% variety to me, based on what looks like gold bands on the end).
@144megabytes
@144megabytes 2 жыл бұрын
Same problem. Now I know how to measure it to fix it 🙂
@gern0tk
@gern0tk 3 жыл бұрын
Is there an interface converter available to drive the C64 using a modern PC mouse?
@JanBeta
@JanBeta 3 жыл бұрын
Yes, there are several converters. Micromys and TOM2 come to mind, but there are probably more, including DIY adapters using microcontrollers.
@bjrnen8505
@bjrnen8505 3 жыл бұрын
I own a CMD Smart Mouse with the exact same diagnose as your 1351. How to get it fixed.
@JanBeta
@JanBeta 3 жыл бұрын
I have no experience with the CMD mice but I would guess the circuit is similar so probably you also have resistors that you could check.
@aphexteknol
@aphexteknol 3 жыл бұрын
Ive never repaired a 1351 mouse as mine is still working fine, but This is super interesting because I had read most 1351 mice died due to faulty MOS controller chips. Now I am wondering if the variability of these trimming resistors and componenet degradation isnt what is actually killing some of these mice over time?
@JanBeta
@JanBeta 3 жыл бұрын
I was reading the same thing in many places. After finding out about the resistors, I suspect the many of these mice are not as dead as they seem.
@Watcher680116
@Watcher680116 3 жыл бұрын
In my 1351 mouse just the soldering points where the cables come in on the back of the small board with the buttons had become bad. German: "Kalte Lötstellen". Had to redo it three times because of the very big soldering pads and the big amound of old soldering lead on them.
@JanBeta
@JanBeta 3 жыл бұрын
The soldering in my mouse looked a bit sloppy, too. I can well imagine that some develop bad joints after all these years. Good thing you managed to fix it.
@danielktdoranie
@danielktdoranie 3 жыл бұрын
Have you seen those kits that convert the old ball mice to IR?
@JanBeta
@JanBeta 3 жыл бұрын
Yes, but as far as I know they are only available for Amiga/ST mice. If you know of a kit for 1351, let me know. Would be interesting to maybe convert far more common Amiga mice to the C64.
@peddersoldchap
@peddersoldchap 2 жыл бұрын
18:00 Could you have used the min-max function of the multimeter?
@angrydove4067
@angrydove4067 3 жыл бұрын
Great job. I was disappointed, back in the day, that beyond GEOS, I couldn't find any other programs for the C=128 which used my 1351mouse, not even a word processor.
@JanBeta
@JanBeta 3 жыл бұрын
Yeah, there is very little software supporting the mouse. Kind of sad. At least it works really well in GEOS.
@linus1936
@linus1936 3 жыл бұрын
There are a few replacements for the MOS5717 (Pic and Aduino based, I think). I don't know how well they work.
@JanBeta
@JanBeta 3 жыл бұрын
It's not a massively complicated chip so I guess the replacements are going to work pretty well. I'll have to look into that. :)
@vlogocyklista
@vlogocyklista 3 жыл бұрын
Is there any possibility to convert Amiga mouse, to work with c64?
@LaserFur
@LaserFur 3 жыл бұрын
Could have measured the existing voltage and used the existing resistor along with math to pick a new resistor voltage. This of course assumes a linear rate, but the transistor detector output should be a set amount of current.
@dennisp.2147
@dennisp.2147 3 жыл бұрын
This...
@JanBeta
@JanBeta 3 жыл бұрын
Yes, Tom pointed that out on the website, too. I wanted to make sure to make up for all possible variations so I decided to do it like I did (also, I suck at maths...)
@dennisp.2147
@dennisp.2147 3 жыл бұрын
@@JanBeta It all worked out in the end though, so six of one, a half-dozen the other...
@stanburton6224
@stanburton6224 3 жыл бұрын
Given that MOS has a history of making chips that eventually fail due to chemistry issues, is it not possible that the input impedance of the chip has changed over time?
@user-marco-S
@user-marco-S 3 жыл бұрын
I did have the C64 in these days, but no Geos and no mouse. Maybe Geos came later.
@villesyrjala3354
@villesyrjala3354 3 жыл бұрын
Finally we find out the real reason for Commodore's downfall; their hardware was being made by the software group :)
@JanBeta
@JanBeta 3 жыл бұрын
CSG actually means Commodore Semiconductor Group, I misspoke there for some reason! :D
@raymondpenn1066
@raymondpenn1066 3 жыл бұрын
Why did you leave the original capacitor? After 30 years I think it might be a little dry.
@JanBeta
@JanBeta 3 жыл бұрын
Coming up in another video. :)
@stefanmarinescu5086
@stefanmarinescu5086 3 жыл бұрын
Maybe i missed it, but would be curious about the bad resistor values
@JanBeta
@JanBeta 3 жыл бұрын
I didn't even measure them, I'm sorry!
@SuperVstech
@SuperVstech 3 жыл бұрын
I hav a bunch of these from my geos and geos 128 most are all crusty from laying around my attic...
@TzOk
@TzOk 3 жыл бұрын
I have such mouse, but as I have no C64, I converted it to use with Amiga (the conversion is fully reversible).
@bjrnen8505
@bjrnen8505 3 жыл бұрын
Hmm... So can the Amiga mouse be converted to use with C64?
@TzOk
@TzOk 3 жыл бұрын
@@bjrnen8505 Everything is possible, but it is much harder than the other way around, and you'd need to have the MCU from the 1351 mouse. Amiga mouse uses only a quad analog comparator (I have used four Schmitt NAND gates) for shaping the signal from optical encoders.
@bjrnen8505
@bjrnen8505 3 жыл бұрын
@@TzOk Thank you
@cathrynm
@cathrynm 3 жыл бұрын
Oh yeah, I still have my 1351 mouse. Mine still works, last I tried it.
@JanBeta
@JanBeta 3 жыл бұрын
Nice! I have been using an adapter for USB mice previously but using the real thing again just feels better (at least from a nostalgic point of view). :)
@jonathanbuzzard6648
@jonathanbuzzard6648 3 жыл бұрын
I would have replaced those capacitors too
@joachimfirnhaber8729
@joachimfirnhaber8729 3 жыл бұрын
Hallo Jan. Wenn du ein Iphone hast, dann kannst du die Infrarot Led's nicht sichtbar machen. Apple hat ein IR Filter. Gruß
@JanBeta
@JanBeta 3 жыл бұрын
Ah, das erklärt das Problem, danke!
@Fred_Krop
@Fred_Krop 3 жыл бұрын
Ah! Now i know why my is not working. Thanks!
@JanBeta
@JanBeta 3 жыл бұрын
Hope you manage to fix it! Might still be other issues, too, obviously.
@ches74
@ches74 3 жыл бұрын
I hit the thumbs up and now it's 666. Quick, somebody save us! 😱
@arisynily1882
@arisynily1882 2 жыл бұрын
I just solved taking out both CIA chips and putting them in again later
@andreracicot4881
@andreracicot4881 3 жыл бұрын
i continude to dowload your video-youtube to my pc software avc any-video convecter/ultimate capture url for dowloading any video from youtube i have the software free crack. tanks..
@FireballXL55
@FireballXL55 3 жыл бұрын
You would have been better to use your scope for this or an analogue meter.
@JanBeta
@JanBeta 3 жыл бұрын
Yes, that would have made things a bit easier still, worked okay with the multimeter, too.
@janchristensen9858
@janchristensen9858 3 жыл бұрын
Are you still alive? Why no new videos?
@JanBeta
@JanBeta 3 жыл бұрын
New video just went up for supporters. Sorry for the delay!
@discoHR
@discoHR 3 жыл бұрын
18:00 Perhaps use MIN/MAX on your multimeter? :)
@akkudakkupl
@akkudakkupl 3 жыл бұрын
The real problem was that Commodore gods were angry at you for using Apple products.
@davemunn73
@davemunn73 3 жыл бұрын
Woohoo first
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