Why I Love the Commodore 1084S CRT Monitor

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  • เผยแพร่เมื่อ 30 มิ.ย. 2024
  • Ep 38 : The Commodore 1084S-P, an amazingly versatile CRT from 1988. A look at what makes it great and some unexpected repairs await!
    00:00 Introduction
    04:53 Recap, New Flyback, and Horizontal Output Transistor
    06:15 An Unexpected Failure and Attempted Repair
    15:21 A Salute to the Fallen
    16:03 Pros and Cons
    18:29 Conclusion
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ความคิดเห็น • 140

  • @MrBenedictHeyer
    @MrBenedictHeyer ปีที่แล้ว +4

    That Cannon Fodder reference was gold :D

  • @JamieOrlando
    @JamieOrlando 3 ปีที่แล้ว +8

    I love my 1084. I got it with my A500 back when I was a teenager and it is still used for that computer. It is a very versatile display and still looks fantastic.

  • @bigmaxy07
    @bigmaxy07 9 หลายเดือนก่อน +2

    I recently got an A500 and then found a flat screen that took 15kHZ, it's great but now I found a working 1084S and wow, authentic scanline greatness ! Hopefully it hangs in there for a while !

  • @NozomuYume
    @NozomuYume 3 ปีที่แล้ว +11

    The VCR button provides a crude adaptive scan for a signal with erratic horizontal sync. The most common use for this was for playback from a VCR, as there was always variance in the geometry of the helical scan head between units, and tapes would sometimes develop a physical "curl" on the edges of the tape with age or bad storage. You'd see this most often in tapes where the scanlines wobble to the left and back, and in particular often shear sideways at the top or bottom of the image. Just depress the VCR button and you'll see the image snap into place.
    It basically serves a similar function to a digital time base corrector. A real full-frame digital TBC does a better job usually, but the simple circuitry in the VCR button does a good enough job a lot of the time and similar circuitry was included by default in many televisions made after VCRs became popular (only it was always on on the TVs and could not be disabled except from a service menu). Some VCRs also had an "image stabilizer" button that did the same thing, only at the VCR's end.
    The button should be left turned off when you feed it a known rock-solid signal like from a computer (in fact the button can mask some technical issues, making diagnosis hard if it's enabled)

    • @retrobitstv
      @retrobitstv  3 ปีที่แล้ว

      Great info, thanks! The manual says only a few words about it but offers no specifics at all about how the button functions. I've used the monitor with many VCRs over the years but never found a need to press it. I guess I should try it with a really bad nth generation copy just to see, assuming I can fix it that is :)

    • @NozomuYume
      @NozomuYume 3 ปีที่แล้ว +2

      @@retrobitstv Decent VCRs from the 90's will do the fix internally and don't need it. Those combo VHSDVD recorders *have* to do it, as even small wobblyness screws up digitizing the image.
      To really see the effect you need an old TV and an old or cheap VCR. You don't even have to make your own multi-gen copies to test -- tons of dollar store VHS tapes where they recorded in EP speed on crappy tape stock have the edge-of-tape form of the problem. I've had a few that were completely unwatchable without a stabilizer.
      You can also sometimes tell when the problem is being corrected by your TV if you're using a cheap 90's VCR that has an on-screen menu overlay but not video processing. The image might look fine but if you bring up the overlay you can see the scanlines from the overlay darting left and right, especially near the top of the screen. This is because the overlay is genlocked to vertical sync, but not horizontal sync.
      The VCR button was a godsend to me when I was a kid as my basement room had an old 80's VCR and an even older 80's TV, and watched a lot of multigen copied VHS tapes of new anime that had been taped off TV in Japan. =P I'd plug the VCR into my 1084 to be able to watch stuff that was a wobbly mess on my TV.

  • @arrangemonk
    @arrangemonk 2 ปีที่แล้ว +1

    rewinding a crt yoke sounds like a fun challange

    • @retrobitstv
      @retrobitstv  2 ปีที่แล้ว +1

      I'm in the process of tearing down the monitor this weekend to get a better idea of what the damage looks like and what it might take to repair it. Hoping a full rewind isn't necessary but we'll see!

  • @KingWilliam
    @KingWilliam 2 ปีที่แล้ว +2

    Still have my 1084S. I used it for quite a few years as a tv and now it's back with my pristine Amiga 1200.
    A great monitor.

  • @Samplers
    @Samplers 2 ปีที่แล้ว +2

    Great video! Thanks for documenting your journey! Very helpful to others on the same path!

  • @minombredepila1580
    @minombredepila1580 3 ปีที่แล้ว +1

    Very nice episode. And sorry for your loss.

  • @0xssff
    @0xssff 2 ปีที่แล้ว +1

    Excellent video ❤

  • @gklinger
    @gklinger 3 ปีที่แล้ว +4

    I'm surprisingly bummed out by the failure of your old friend. :(

  • @Charleshawn66
    @Charleshawn66 2 ปีที่แล้ว

    Great video!! I missed this video when it came out but did as you suggested a few seconds into your new video.

  • @doktor6495
    @doktor6495 3 ปีที่แล้ว +2

    I also still love my 1084 and I hope it lives a long time!
    Great episode!
    Greetings, Doc64!

  • @geekwithsocialskills
    @geekwithsocialskills 3 ปีที่แล้ว +5

    Great video! This model of 1084s is my favorite. I love the boxxy case design. It's a bummer is died on you. Hopefully you find a donor CRT in the future.

    • @retrobitstv
      @retrobitstv  3 ปีที่แล้ว +2

      Thanks! I really do hope it can be fixed one day; it is my fav as well!

  • @L0wcash
    @L0wcash 3 ปีที่แล้ว +4

    So lesson learned; before replacing deflection transistors check the resistance of the deflection coils.
    I hope you get this beauty fixed as it is my favorite retro computer monitor. It might be possible to repair the shorted deflection coil by winding new lacquered wire on it. If you use the same gauge and count the number of turns on the old one..
    Not an easy job, and a lot of work but it is doable..

    • @retrobitstv
      @retrobitstv  3 ปีที่แล้ว

      Great advice, and something I will remember for next time! I do hope it can be fixed, so I'll be checking out the extent of the damage soon to figure out a game plan.

  • @Unicrontesting
    @Unicrontesting 3 ปีที่แล้ว +5

    I've had it happen to me on a 1085S monitor, i pulled of the yoke and cleaned it and picked out the damaged wires, I used a thin layer of epoxy to insulate them where the lacquer had burned off, I had 2 burned trough wires which i soldered back together and used shrinking tube to insulate them. In some mister cores where the screen is more narrow I have a little bit of a small swerve in the edge geometry but its barely noticeable. But I think I was lucky :) but you can always try. I also added a scart connector to a 1084s-p it will need some additional components though, as you will have to let it switch to the scart rgb signal, pin 16 has to connect to a transistor and has to provide 3 volt.

    • @retrobitstv
      @retrobitstv  3 ปีที่แล้ว +2

      Glad to hear you were able to repair yours and thanks for the tips. I will get the yoke out and cleaned up and see how bad the damage is and then try and come up with a plan. What type of epoxy did you use? Thanks for the tip on the scart connector as well!

    • @Unicrontesting
      @Unicrontesting 3 ปีที่แล้ว +3

      @@retrobitstv I think its a bit of a generic 2 part epoxy, its called Bison Kombi Quick Epoxy

  • @garywutube
    @garywutube 2 ปีที่แล้ว +1

    I love my Philips CM8833 back the day

  • @mobamoba8939
    @mobamoba8939 3 ปีที่แล้ว +1

    Good presentation 👍🏻

  • @dave24-73
    @dave24-73 2 ปีที่แล้ว

    Adrians basement added a scart, you need to solder the jumpers for the sync to work, but all the circuitry is there.

  • @dougjohnson4266
    @dougjohnson4266 3 ปีที่แล้ว +1

    Nice work in keeping it and I think you will get it fixed someday.

    • @retrobitstv
      @retrobitstv  3 ปีที่แล้ว

      Thanks! I sure hope so :)

  • @KittyFae-
    @KittyFae- 3 ปีที่แล้ว +2

    Apparently the VCR button adjusts the monitor's circuitry to accept video from a VCR, VLP, or Video Camera. At least that is what I saw in my manual for a 1084, interesting. Such wonderful and versatile little monitor, glad to see all the love here! Hopefully you can get it up and running again, best of luck.

    • @retrobitstv
      @retrobitstv  3 ปีที่แล้ว

      Thanks for the tip and I hope it can be fixed someday!

  • @TheMrJamu
    @TheMrJamu 3 ปีที่แล้ว +4

    Commodore 1084(S)-P and it's sister model Philips cm8833/8833-II are also my favourite monitors. I have five of them :D

    • @gaijin3612
      @gaijin3612 2 ปีที่แล้ว

      Donate one to this poor chap.

    • @TheMrJamu
      @TheMrJamu 2 ปีที่แล้ว +2

      ​@@gaijin3612 , I would like to but mine are here in Europe :)

    • @gaijin3612
      @gaijin3612 2 ปีที่แล้ว

      @@TheMrJamu

    • @socialengineering2539
      @socialengineering2539 2 ปีที่แล้ว +1

      I have 2 models of philips 2 too
      They deffirente by model
      Me and my brother still owning them from 90s
      By the way im from morocco north africa

  • @carlwells9504
    @carlwells9504 10 หลายเดือนก่อน +1

    I loved my old 1084S which I used with my Amiga in my Dorm room- I used to plug my VCR into it to watch TV on it as well. Got quite the crowd watching the latest weekly episode of The Simpsons (showing my age abit there!)

    • @retrobitstv
      @retrobitstv  9 หลายเดือนก่อน

      Too funny, we used my 1084S as a dorm room TV as well!

  • @SebastianS72
    @SebastianS72 3 ปีที่แล้ว +1

    Because I was short on money during highschool, I was happy to get a used 1084S as color addition to my SM124 on my Atari ST, just had to build me an adapter cable.

  • @terosaarela4555
    @terosaarela4555 3 ปีที่แล้ว +2

    Thanks for the video! Sorry to see your 1084S failing. I briefly had a 1084 which had a broken power switch.

    • @retrobitstv
      @retrobitstv  3 ปีที่แล้ว

      I'm surprised mine hadn't broken yet, but I picked up a couple new switches to have on-hand for when it did happen!

  • @sublimemauser5904
    @sublimemauser5904 3 ปีที่แล้ว +2

    Also they were sold under the Acorn brand, to be used with late Acorn/BBC 8-bit micros and the Acorn Archimedes

  • @vinlemarechal8296
    @vinlemarechal8296 2 ปีที่แล้ว +2

    loved the cannon fodder reference

    • @Wagoo
      @Wagoo 2 ปีที่แล้ว

      music was too fast, though :P

  • @gustos2478
    @gustos2478 3 ปีที่แล้ว +1

    I’m sorry for your loss.

  • @zeromega
    @zeromega 3 ปีที่แล้ว +1

    This is one of my dream monitors, i’m using a 1201 monochrome at the moment 😆 😅

  • @gettingpast4391
    @gettingpast4391 2 ปีที่แล้ว +1

    I have that desoldering gun it's my favorite tool!

  • @ridiculous_gaming
    @ridiculous_gaming ปีที่แล้ว +1

    I have one or two of these, but my favorite was the 1084 non-S and a commodore 1080 that I stupidly gave away almost 20 years ago.

  • @seanwilliams4087
    @seanwilliams4087 2 ปีที่แล้ว +1

    Condolences for your loss - hopefully you will find a way to resurrect your old buddy. :p

  • @bobrandale4864
    @bobrandale4864 7 หลายเดือนก่อน +1

    I only have my 1084 left, (and the trapdoor still works).
    Its' only problem is the color displays in rainbows near the corners. I'm sure it would work perfectly if I had the right tools to degause (sp) the corner posts. If I remember correctly, the power-on is supposed to clear any magnetism issues, but this also seems to malfunction...

  • @socialengineering2539
    @socialengineering2539 2 ปีที่แล้ว +2

    I own sister of those they are philips cm8333
    I still have 2 from 90s i played all from megadrive to sega dreamcast ps2
    Last mounth i visitid a stores here in morocco i get my hand on 2 of this monitor but with composite only they are black color cases

  • @ShamanNoodles
    @ShamanNoodles 2 ปีที่แล้ว +2

    The RGB is even compatible all the way up to the 256 bit era(PS2 outputs RGB)! Excellent monitor

    • @Vvewa
      @Vvewa ปีที่แล้ว

      ps3 can do 480i via scart

  • @cooperschwartz318
    @cooperschwartz318 ปีที่แล้ว +1

    I feel the same way about my AppleColor RGB monitor, however, it is less versatile because it uses a 15 pin rgb conncector, but that means better picture quality

  • @EzdineGaray
    @EzdineGaray 3 ปีที่แล้ว +1

    Sorry for your loss :(
    I have one that is beginning to demonstrate the same behavior as yours did before the choke failed. Not looking forward to what comes next.

    • @retrobitstv
      @retrobitstv  3 ปีที่แล้ว

      Thanks! I hope yours is able to be saved. Maybe the insulation can be repaired with lacquer/epoxy before it fails totally like mine?

  • @tokyogentleman
    @tokyogentleman 4 หลายเดือนก่อน

    separate the green (oxidized) wire on the yoke and see if you can find the short. if broken solder them and then apply varnish and then return them to the original position.

  • @wrtlpfmpf
    @wrtlpfmpf 2 ปีที่แล้ว +1

    The VCR button changes the way it reacts to noisy sync signals. Essentially for TV and computer signals it makes sense to ignore small fluctuations in the sync position as those are typically just caused by noise.This is what's commonly called "fly-wheel synchronisation" where the deflection goes on regardless of small errors.
    For VCRs however, this is not a good strategy as they have time distortions thanks to geometric distortions of the tape and velocity errors. A signal from a VCR will always be jittery. Pressing this button makes the monitor react quicker to those fluctuations giving you a much more stable picture.

    • @retrobitstv
      @retrobitstv  2 ปีที่แล้ว

      Great info, thanks for clarifying. I used the monitor with a VCR back in the 90's but I do not remember now if I ever tried pushing the button back then or not.

  • @MindFlareRetro
    @MindFlareRetro 3 ปีที่แล้ว +1

    Great topic! A shame about the deflection yoke coil. There are some repair videos on YT -- might be worthwhile attempting a repair.

    • @retrobitstv
      @retrobitstv  3 ปีที่แล้ว +4

      Thanks! I will definitely have to dig in and do some more research. I'm already starting to hatch a plan!

    • @MindFlareRetro
      @MindFlareRetro 3 ปีที่แล้ว +1

      @@retrobitstv Cool. Looking forward to your findings.

  • @CantankerousDave
    @CantankerousDave 2 ปีที่แล้ว +1

    I've had mine since 1991. The hinges on the front panel have been broken for about that long.

  • @riggel8804
    @riggel8804 3 ปีที่แล้ว +1

    Replacing the deflection coil /yoke isn't that big a deal. Just make sure that it is unscrewed or you will snap off the neck of the tube. If one of the guns is bad than replacing the yoke won't fix it.if you replace the yoke it has to be with a virtually identical monitor or you will probably never get the convergence dialed in very good. If you replace the yoke and the convergence is off you can readjust the convergence rings.
    Tere are some good tutorials on TH-cam from the arcade community on doing a yoke replacement. I can send you a link if you want. I have never replaced a yoke but I have taken 3 or 4 off and repositioned them.
    Good job adapting this video. It was still entertaining and informative despite your CRT dying mid production.

    • @retrobitstv
      @retrobitstv  3 ปีที่แล้ว +1

      Thanks! I will definitely have to start doing some more research on repair/replacement and start looking around for a suitable donor. I'm sure it can be done, but finding just the right part is probably going to take time.

    • @riggel8804
      @riggel8804 3 ปีที่แล้ว

      @@retrobitstv you're welcome and good luck!

  • @davidkroeker1821
    @davidkroeker1821 3 ปีที่แล้ว +1

    Such a shame that the monitor died on you! I really hope you keep it and eventually find a way to get it fixed. It may be beyond your skills today, but who knows what you may learn in the months/years ahead? A retired TV repairman may be able to help or perhaps even be willing to fix it for you? I have a very similar Magnavox 8CM515 (also made by Philips) that I've owned since I was about 17 years old. My case does not have the cut-out for the SCART connector, but that part of the back of the case is unoccupied - making me wonder if the PCB inside is ready for a connector in that spot as well. I really wish you'd been able to finish this video, as I'd have loved to see if you could have gotten that SCART connector working! Hopefully someday - please don't give up...

    • @retrobitstv
      @retrobitstv  3 ปีที่แล้ว +1

      Thanks for the positive thoughts! I hope I am able to fix it in time as well. One step at a time!

    • @davidkroeker1821
      @davidkroeker1821 2 ปีที่แล้ว

      Just letting you know that, yes indeed, my Magnavox 8CM515 does have a spot on the PCB for a SCART connector as well! I didn’t check for traces under the board, but expect they are there just as on your 1084S. Are you having any luck getting your 1084S repaired?

  • @luiscortazar6291
    @luiscortazar6291 2 ปีที่แล้ว +1

    I've got a Commodore 1702. I love the Chroma Luma Split. But man would I love something like this to get Composite, S video and RGB

    • @skeggjoldgunnr3167
      @skeggjoldgunnr3167 11 หลายเดือนก่อน

      I got my commodore 64 hooked up to a 4:3 aspect medical document viewer HP elite display. (US $159.00 new three years ago). It has only displayport. SO: Luma / chroma > S-Video to HDMI to Displayport! Good adaptors! I did NOT skimp on cost, I got good stuff. It takes NTSC & PAL. Perfect and gorgeous!. My Micomsoft XRGB II + and XRGB Frame Meister not needed. I did build some BOOMIN mad speakers. A 2.1 setup with their own amps and dual voice coils. Everyone is shocked at how perfect they sound as I demo some SID tunes.

  • @tetsujin_144
    @tetsujin_144 3 ปีที่แล้ว +1

    I don't generally feel too bad for not keeping my old Commodore stuff around, there were just too many years in between when I had no interest in any of it... But it might've been nice if I'd held on to my 1084-S, especially now that I've finally got an Amiga.

    • @retrobitstv
      @retrobitstv  3 ปีที่แล้ว

      The monitor is quite literally the only piece of hardware I kept from back then, and I'm not entirely sure why, but I'm glad I did. It must have moved at least 7 times with me, maybe more.

  • @Lee-il5kc
    @Lee-il5kc 3 ปีที่แล้ว +1

    RIP ol boy. :(
    I've given up on CRTs. Too troublesome to keep working these days. I just don't have time for that kinna thing anymore. :(
    That being said, I have a 1084D that needs a PA chip replacement, which will get a vidjya on my Odysee channel here at some point......

  • @leatapmicha9917
    @leatapmicha9917 3 ปีที่แล้ว +1

    So sad ending!

  • @BertGrink
    @BertGrink 3 ปีที่แล้ว +1

    It´s probably a shot in the dark, but have you considered finding another 1084 of the same type to use as a donor?
    Great video by the way; I have a 1084S-D1 myself, so it was quite interesting to see the differences between the two models. I bought mine used a couple of years ago, but I hope it will last a few more years.
    Greetings from Denmark.

    • @retrobitstv
      @retrobitstv  3 ปีที่แล้ว +1

      Thanks! I haven't started the search for a replacement part yet but I may put out some feelers and take some measurements to see if there are suitable replacements from similarly-sized tubes. Enjoy yours!

    • @CoCoNutBob
      @CoCoNutBob ปีที่แล้ว +1

      @@retrobitstv I have a spare 1084 if you're still looking.

    • @retrobitstv
      @retrobitstv  ปีที่แล้ว +1

      @@CoCoNutBob I am still looking for parts to repair mine but I wouldn't want to cannibalize a good working unit to fix it. If you've got a dead or parts unit that you're looking to sell, please let me know though. Thanks!

  • @raynerpedersen31
    @raynerpedersen31 2 ปีที่แล้ว

    Still waithing for this monitor to be fixed.
    I cant sleep at night knowing this one is lost in action...

    • @retrobitstv
      @retrobitstv  2 ปีที่แล้ว +1

      So... some things happened here th-cam.com/video/Fox9dYMTak0/w-d-xo.html but there will still be more to the story.

  • @Geke86
    @Geke86 3 ปีที่แล้ว +1

    Nice video. I have the same crt except in mono. How did you connect the mister to the crt? I can't find any cables to connect to the 6 pin rgb din. Only my Amiga 500.
    But I'm not able to connect anything else to it or I have to use composite but this is not what I want.
    I have an European model and also no scart connect. I soldered a scart connection to it like you wanted to, but I get a scrambled picture when I connect something to it. Megadrive, snes etc.
    I saw a video of someone who was succesful but me it isn't working.

    • @retrobitstv
      @retrobitstv  3 ปีที่แล้ว +1

      Hrm, I do not have any advice on the scart connector as I never got that far into the project. It sounds like the sync isn't correct tho, or it's not switching the monitor into RGB mode at all. Another commenter indicated that it may be necessary to add a transistor on pin 16 to activate RGB. For the MiSTer, I made a custom cable for the analog I/O board and made sure to disable the scan doubler. Pigtails for the DIN6 end are less than $10 and you can add whatever end you want to it (in this case hd15 vga): www.digikey.com/en/products/detail/tensility-international-corp/10-00436/2625286

  • @RetroTuna
    @RetroTuna 2 ปีที่แล้ว +1

    Gutting sorry for your loss mmm

  • @darthamiga
    @darthamiga 2 ปีที่แล้ว

    did anybody else get a green 1084 monitor, had to open it up when it warmed up and freeze the color cpu so it would display full color again, lol, those were the days

  • @n8goulet
    @n8goulet 2 ปีที่แล้ว

    Looking to adapt my two working Amiga 1080 monitors to properly display retro systems from my PC emulators. I always see how people do the opposite. Any idea how to adapt a PC's VGA or HDMI signal to get an analog RGB connection on a 1080 monitor?

  • @PinballEddie
    @PinballEddie 2 ปีที่แล้ว +1

    Thanks for another great video but sorry about the monitor. I’m sure you’ll get it back working soon.
    Question, I know you mentioned this monitor works with the Apple ii core, have you been able to use the 486 core? I just have a 1702 monitor and it won’t work with the S video output nor the other CRT I have.
    Thanks again and stay safe.

    • @retrobitstv
      @retrobitstv  2 ปีที่แล้ว +1

      The ao486 core outputs 31khz RGB natively, so the 1084 won't be able to display it. You should be able to override the default behavior of the core and force it to 15khz, but that's going to break compatibility with software that use resolutions higher than 240p. You can try putting the following in your mister.ini file and see how far you get:
      [ao486]
      video_mode=320,8,32,24,240,4,3,16,6048
      vga_scaler=1

    • @PinballEddie
      @PinballEddie 2 ปีที่แล้ว +1

      @@retrobitstv Thanks so much for taking the time to reply and provide this information. I had a feeling it might not work but wanted to confirm with someone that has more experience with the Mister as all my past retro stuff has either been with original hardware or a Raspberry Pii.
      Thanks again and stay safe.

  • @RavenWolfRetroTech
    @RavenWolfRetroTech 3 ปีที่แล้ว +1

    I'm sad to see your old friend has serious issues. I had been talking to a gentleman that does storage locker auction buys, who says he has a half dozen 1084S monitors. I doubt it will pan out but, if it does, I'll drop you a line,

    • @retrobitstv
      @retrobitstv  3 ปีที่แล้ว +2

      Appreciate the thought! I'd definitely be interested if there were donor parts available from a dead monitor.

  • @herdware
    @herdware 3 ปีที่แล้ว +2

    Hard to see in the footage but if it's only one or two-ish wires that has burned off it should be possible to fix by reconnecting the wires and lacquering again.

    • @retrobitstv
      @retrobitstv  3 ปีที่แล้ว

      Thanks for the tip, I hope the damage isn't too extensive! Next step will be to remove the yoke, clean up the charred bits, and assess the situation.

  • @scarter9447
    @scarter9447 2 ปีที่แล้ว

    What would happen if you got that flyback pop in your fingers from the cap discharge, if the monitor was off as shown?

    • @retrobitstv
      @retrobitstv  2 ปีที่แล้ว +1

      Best possible case, some displays have a discharge circuit that will bleed off the stored voltage given enough time. The pop you heard was 10's of thousands of volts discharging which is enough to be lethal if you touch it.

  • @infinitecanadian
    @infinitecanadian ปีที่แล้ว

    It is possible to repair those yokes. Perhaps if you send it to Adrian Black he can fix it.

  • @jmp01a24
    @jmp01a24 6 หลายเดือนก่อน

    My PAL version of the 1084S came with SCART connector on the back, why does yours not have that?

    • @retrobitstv
      @retrobitstv  6 หลายเดือนก่อน

      SCART wasn't adopted in North America so none of our displays had it. Or at least so few it doesn't bear mention.

  • @Thenativebriton
    @Thenativebriton 7 หลายเดือนก่อน

    Can anyone help me. I have a 1084s d1 with a faulty transistor (2sd1401) the only replacement I could find that the manual says to use is a 2SD1883 but it keeps shorting with or without the mica. It has to be the transistor because the 2SD1401 from my other monitor works on it just fine.

  • @akiraokami
    @akiraokami ปีที่แล้ว

    I have a 1084S-P1 European model and unfortunately it does not have a SCART connector, as a result I haven't really used it in recent years, it also has a 9-pin RGB port instead of the precursor to S-video. Recently I've been playing around with the idea of using it as a PC monitor for retro inspired games (e.g. the new Turtles game that recently came out and other games like it), which is how I stumbled on to this video, while trying to look for any info on how to use it on a modern PC (as of now, I'm still stuck on whether that is even a possibility or not)

    • @retrobitstv
      @retrobitstv  ปีที่แล้ว

      You should be able to create a SCART-to-DB9 cable to use your monitor with anything that supports RGB with HV or composite sync. This might help, assuming that's a -P1 monitor: www.retromania.pt/cms/2017/06/17/tutorial-um-adaptador-scart-1084s-amiga/
      Also check out CRTEmudriver - it works on modern PCs with certain AMD video cards to support 240p monitors: geedorah.com/eiusdemmodi/forum/viewtopic.php?pid=1009#p1009

    • @akiraokami
      @akiraokami ปีที่แล้ว

      @@retrobitstv Thank you, I'll look into those~

  • @damiansurace7941
    @damiansurace7941 3 ปีที่แล้ว

    I have exactly the same model. So far still going strong 🤞
    After watching this video however I’m concerned about ensuring I don’t run any non-15khz Mister cores. Is there a list of which cores would be safe to run?

    • @retrobitstv
      @retrobitstv  3 ปีที่แล้ว +2

      After finding the real failure, I'm pretty sure that the MiSTer didn't play a part in the failure, just age. I'm not aware of any comprehensive list. Each core outputs the native signal for the original hardware. For sure the 486 core defaults to 31Khz, but you can force it, or any core really, to run at 240p with something like this in the config file:
      [ao486]
      video_mode=320,8,32,24,240,4,3,16,6048
      vga_scaler=1

    • @damiansurace7941
      @damiansurace7941 3 ปีที่แล้ว

      @@retrobitstv thanks for that. So after finding the issue, is your 1084S salvageable? 🤞

    • @retrobitstv
      @retrobitstv  3 ปีที่แล้ว +1

      @@damiansurace7941 I will need to find a suitable donor yoke from a similar model of display that has very similar properties to my original, or try and repair or re-wind the damaged copper windings. Step 1 will be to remove the yoke and assess the level of damage. If it's not too crispy I may try and repair the insulation, but if the wire itself has melted it will require more serious repair that may be beyond my skill level.

    • @damiansurace7941
      @damiansurace7941 3 ปีที่แล้ว +2

      @@retrobitstv Best of luck! If anyone can resurect it, it's you!

    • @retrobitstv
      @retrobitstv  3 ปีที่แล้ว +1

      @@damiansurace7941 Thanks! I will give it my best shot :)

  • @f1lupo
    @f1lupo 2 ปีที่แล้ว +1

    ah sucks you’re 1084S is out of commission for now anyhow…still have my original 1084 working great so far….always wanted the S for the steric sound but could never find one near my town back in the day

  • @Breakfast_of_Champions
    @Breakfast_of_Champions 3 ปีที่แล้ว +1

    Yeah the lacquering on the choke's copper wire is going to age and eventually come off.

  • @trydowave
    @trydowave 3 ปีที่แล้ว +1

    sad indeed. i have three 1084s's. Only one survives. One has a busted flyback and the other is starting to whine so im guessing its flyback is on the way out too. Other than that i have a Sony BVM 20E1E which i also adore. I hate using modern screens for retro stuff so ill be using my crts as long as i can. Great video :)

    • @retrobitstv
      @retrobitstv  3 ปีที่แล้ว

      Good news is that flybacks are still available, at least for Philips models. HR7506 I believe is the replacement part but probably a good idea to check your service manual to be sure!

  • @jsrodman
    @jsrodman 6 หลายเดือนก่อน

    1080 forever! I always felt the look was a bit superior to the 1084s.

  • @elamriti
    @elamriti 2 ปีที่แล้ว

    i have the same pal version has only one speaker any one knows where i can find a second speaker

  • @andreasimoncini
    @andreasimoncini 2 ปีที่แล้ว

    it's better Commodore 1901 or 1084s P ??? for 80 columns RGBI Commodore 128 ??? thanks :)

    • @retrobitstv
      @retrobitstv  2 ปีที่แล้ว +1

      I suspect either will be just fine for the 128. The 1901 is a PAL-exclusive model so I've never seen it before myself. On cursory examination, it looks like the 1901 only has Digital RGB, perfect for the 128, but the 1084 also has analog RGB for the Amiga and other 16-bit era computers and game consoles.

  • @profesorbooty
    @profesorbooty 3 ปีที่แล้ว

    I've seen that monitor before....

  • @mrmiyagi5
    @mrmiyagi5 3 ปีที่แล้ว

    Needs Elf magic

  • @manumores
    @manumores 3 ปีที่แล้ว

    HI! I have a question, but i have to mention immediately that i have no technical understanding whatsoever (none!), so in case of answer i won't be offended by an oversimplified version of an answer. Back to the question: I have a C-64 and an A-500. Because of limited space i use only one 1084S monitor, switching cables at the back of the monitor every time i change from C64 to A500. Is there any way i can get both computers connected to that monitor at the same time? Or in any case a scenario where i can leave the connectors at the back of the monitor in peace and not breaking my back in the process?

    • @retrobitstv
      @retrobitstv  3 ปีที่แล้ว

      The short answer is yes! It sounds like you are connecting the A500 to the monitor using composite (single yellow RCA style connector). For a much higher quality picture, the Amiga should be connected using RGB instead. This would require you getting the proper cable, DB23 to DIN6. You can find these cables for as little as $15 USD on AmiBay, eBay, or at various Amiga vendors online! Once you've connected that cable, you can leave both systems connected to the 1084S and switch between the C64 and A500 by using the RGB/CVBS button that's in the front control panel. Note that this doesn't solve the audio situation. You would either need an RCA switchbox to pick which audio input to send to the monitor, or use external amplified speakers which is what I do :)

    • @manumores
      @manumores 3 ปีที่แล้ว +1

      @@retrobitstv That is putting me a long way in the right direction. I’ll figure it out from here, now that i have the right abbreviations of stuff to fit to the setup. Thanks for taking the time and greets from Belgium!

  • @lesterjeffries2467
    @lesterjeffries2467 3 ปีที่แล้ว

    I have an 1084s which has not been use since 1998, now I try turn on and the red light come on but no picture the hookup is correct . What come be the problem other than I have not use it in years?

    • @retrobitstv
      @retrobitstv  3 ปีที่แล้ว

      Is it making any strange noises? Can you feel static when you run your hand over the screen while it's powered on? Also make sure it's not set to RGB if trying to use CVBS or vice-versa.

    • @lesterjeffries2467
      @lesterjeffries2467 3 ปีที่แล้ว

      @@retrobitstv I just starting setup my commodore 128d, I have the same setup as you do but I get no picture and the monitor will not shut off and on. Is this 2 separate problem or just one?

    • @retrobitstv
      @retrobitstv  2 ปีที่แล้ว

      @@lesterjeffries2467 First thing you need to check is if it's making high voltage. Either check to see if the neck of the tube is glowing, or just run your hand over the screen and test if you feel any static.

    • @lesterjeffries2467
      @lesterjeffries2467 2 ปีที่แล้ว

      @@retrobitstv Thanks,, I try 2 monitor and none of them turns on. So I will open the 128D and see if any dirt is inside. I have not them use them since about 1998.

  • @Cory_
    @Cory_ 2 ปีที่แล้ว

    All the talk about how CRTs are all going to die one day makes me sad. My tube is from the mid-2000s, so I'm sure it still has at least decade or so left, but it's eventually not going to be around.

  • @rsuryase
    @rsuryase 3 ปีที่แล้ว +1

    Nice to see some stuff just can't be repaired.

  • @Elbas_Tardo
    @Elbas_Tardo ปีที่แล้ว

    Power switch fail? I have one , and never fail, and is still in use. Screen curve is normal in 80 to 90. The con is the price, expensive then and now.

  • @itsyeeoledskoolfurry3208
    @itsyeeoledskoolfurry3208 3 ปีที่แล้ว

    Am I getting the FIRST comment?? This is SOOO strange.. LoL.. Anyways, I just love (sarcastically) how they advertised the Commodore Colt: as "The Complete IBM Compatible Machine For The Whole Family!" And then under the Price it says: "w/o Optional Commodore 1084 Color Monitor." And then you paid MORE for the SEPARATE monitor. Uhhmmm... That's NOT a complete System!!!! The 80's WERE SUPER Funky for computers because sold monitors separately.. LMAO... ='oD Could you (or someone here) please recommend a good quality soldering kit for beginners?? And thanks much. = o )

    • @retrobitstv
      @retrobitstv  3 ปีที่แล้ว

      I used a number of cheap $15 Radio Shack soldering irons over the years, but finally broke down and bought a nice Hakko (link in the description). At over $100, it's a lot pricer, but once you use a nice one, there's simply no going back. Also, I've learned over the years that if you buy cheap, you buy twice (or more). Get a quality tool and it'll last a lifetime.

    • @itsyeeoledskoolfurry3208
      @itsyeeoledskoolfurry3208 3 ปีที่แล้ว

      @@retrobitstv Awesome. Thanks Much.

  • @maxbauer7248
    @maxbauer7248 7 หลายเดือนก่อน

    Just put a LCD in it /s

  • @ALEX-gl2yz
    @ALEX-gl2yz ปีที่แล้ว

    I've got two of them, ordered from listings and came perfectly working. But both of them failed within 2 weeks, same black screen with the same noise. That's all, they just fail and I won't put anymore money in these monitors. A similar size Trinitron TV CRT and that's all what you need, they come with SCART in Europe and they're stronger built than the "anyway it will fail" Amiga/Atari monitors.

    • @retrobitstv
      @retrobitstv  ปีที่แล้ว +1

      Yea these monitors all suffer from flyback and/or power switch failure eventually. Both parts are still available and aren't too hard to replace. If you still have the monitors, hopefully someone wants them to repair or at the very least, the parts can be used to keep others going a while longer.

  • @FEPLabsRadio
    @FEPLabsRadio 3 ปีที่แล้ว

    Test comment

  • @2kBofFun
    @2kBofFun 2 หลายเดือนก่อน

    These are not "Commodore", but some generic rather cheap quality Taiwanese brand (like to know which one), as you see them with all kinds of brands printed, including Philips. I do prefer a good Trinitron as it gives nicer scanlines than tridot screens. Also the colours pop more.

  • @skeggjoldgunnr3167
    @skeggjoldgunnr3167 11 หลายเดือนก่อน

    I want you to research how to rewind that deflection yoke. I want to see you try...and succeed and then I want you to make happy dance. We lovers of all things commodore will go to the deepest depths of effort to keep them alive. I may drill holes in MY breadbin to mod it more and more until there's not a mod LEFT or space to put a hole for a switch or knob...but she's a rescue, found dead in a crack puffer's closet and full of cat piss and turdlets. Needed SID, CIA, RAM, much keyboard repair involving early C=64C white keycaps w/ gray front symbols (not on top) - and orange VIC-20 function keycaps and mechboard cherry blue switches, recap, SIDFX, VICII2, JiffyDOS, Switchable kernals, RF bypass, a gang of synth effects filters, a one tube headphone amplifier, reset switch...I think I'm STILL looking for a mod I can do to it. I modded all HELL outta the 1541 ALPS drive. Track display, device ID switches, reset, RAMBOard, parallel burst nibbler mod, JiffyDOS and I'm building a DolphinDOS board. Turbo Chameleon 64 v2 w/ battery, RRNET card, dock, cable, remote. 1541 Ultimate II+. Pi1541 (the Raspberry Pi 3b+ one.) Easy Flash 3. 64 NIC+. Magic Voice Module, a Ray Carlsen power supply, Printer, datasette, cats painted all over both 1541 and C=64 to pay homage to it's past life. I buy one deluxe collectibles game from protovision and the like at least once per month. It understands full-well that I love and adore it. I could NEVER sell it. I would NEVER shitcan it. And we know that the day will come that you remedy this coil. OR ELSE!

  • @gaijin3612
    @gaijin3612 2 ปีที่แล้ว +1

    Sad.. sad face.

  • @madcommodore
    @madcommodore 2 ปีที่แล้ว

    As a CRT TV engineer I will tell you within the first 3 seconds of your video that is NOT a good CRT at all. The tube when turned off needs to be as dark as possible like a Grundig (Atari) Sony (Apple) or Panasonic. That is medium grey. I have every C= monitor ever sold and my two 1902 monitors are the only ones with dark grey tubes.