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NIVONA Caferomatica 830 Coffee Machine: Damaged Display Repair, AliExpress Replacement

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  • #331 18778092
    damek4
    Level 11  
    What voltages should be on the board without a display? I have 2.7V, 4.9V and I do not know if the tps system has been damaged because there are no higher voltages.
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  • #332 18778207
    amigos
    Level 16  
    Still tiring this display as in April? There should be approx. 12V behind the diode, which goes to soldering point No. 30 of the SSD1305 display or No. 23 of the SPD0301 display.
  • #333 18778587
    rombu
    Level 2  
    Thank you very much: Amigos, Satanist, Smoczy, j4rek and others that they want and deal with such topics.
    Nivona resuscitated and works.
    As PCBs send more, I have assembled and tested more displays.
    If anyone needs it, I will give it back at the cost.

    NIVONA Caferomatica 830 Coffee Machine: Damaged Display Repair, AliExpress Replacement NIVONA Caferomatica 830 Coffee Machine: Damaged Display Repair, AliExpress Replacement
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  • #334 18781311
    slawek2901
    Level 2  
    I would like to thank my colleague AMIGOS very much for help in resuscitation and instructions on how to operate the display.
    Of course, everything works as it should, which makes me very happy :)
    Thanks again for your help.
  • #335 18781371
    amigos
    Level 16  
    And great. Let the espresso machines serve you for many years.
    Best regards.
  • #336 18782712
    rombu
    Level 2  
    amigos wrote:
    Let the espresso machines serve you for many years.


    I already gave this coffee to a friend because I did it for him.
    And all happiness.
    Such a coffee is a product of Satan - instead of one coffee per week (on Sunday) everyone at home drank 3-4 a day.
  • #337 18782729
    amigos
    Level 16  
    Because the coffee grinder wiped off very quickly in these machines and the coffee was probably weak. I only felt the real taste of coffee when I exchanged heat for a new V5. As I drank the strongest on old ones, then I had to set a maximum of 3 beans because it was too strong. I highly recommend the exchange. The coffee rings must be firm and dry in the container. As they fall apart and you can see that they are coarsely ground, they are coarse to replace.
  • #338 18782804
    kris6661
    Level 11  
    Request to measure voltages on U1 61045. I submitted satanistika and darkness from the project, it does not highlight, I type this circuit because it was recovered from an old board, voltages on JP1 inputs are from 5V to 2.9V.
  • #339 18792607
    white_leo
    Level 1  
    Hi everyone
    I used the j4rek project and changed it a bit. I want to install an adapter not between DisplayBoard and OledBoard, but on the back of DisplayBoard. It seemed more comfortable to me. The dimensions of the plate are 20 * 35.35. How would you rate it?

    3D model of a red PCB with components and dimensions.
    Attachments:
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  • #340 18793254
    Rafalrd
    Level 1  
    Hello
    We have the same problem with the display, the image began to fade, nothing can be seen. Due to the fact that I do not know electronics, I have no equipment for it, I have a question: would anyone find someone willing, what would my display fix? Please contact.

    NIVONA Caferomatica 830 Coffee Machine: Damaged Display Repair, AliExpress Replacement
  • #341 18802062
    melse
    Level 10  
    Great thread, thanks for all the info! And all the efforts of you guys!
    I guess I'll get a converter pcb manufactured at e.g. Elecrow or a similar company and see if I can get my Nivona operational agian ;-)
    When I want to order the pcb after uploading the Gerber files, I am asked for the size of the pcb. What do you guys use for the size, maybe 35 mm x 20 mm if I look close to the pictures?
    Thanks!

    EDIT: Ah, it shows up after uploading the Gerber files: 17x36mm(0.67x1.4 inches) :-)
  • #342 18802596
    Davidc
    Level 9  
    Hello.
    Thank you to everyone involved in this project.
    However, I have one small question.
    I can't find the MOLEX 52745-2490 connector anywhere.
    Can they be replaced with a similar one?
  • #343 18802626
    amigos
    Level 16  
    It may be similar. Just remember that it must be upper-minded.
  • #344 18803799
    RLG
    Level 2  
    With regard to the mirroring problem on the SSD1305 Display; decoder77 resolved it by using flash memory sst39vf040. (https://www.eevblog.com/forum/testgear/replacing-oled-screen-on-an-agilent-u1253a-multimeter/msg2438199/#msg2438199). That solution requires pcb and programming the flash memory.

    Is it possible to use the I2C interface on the SSD1305 to force the display to replace the received command from the microcontroller 10100000 to 10100001? Using a $10 ESP32, it may be possible, it needs only 4 wires?
    Best
  • #345 18810034
    apache9
    Level 1  
    Hello,
    will any of the honorable forum users fix this display for me (of course not for free) or give me a bearing on someone who will do it?
    best regards
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  • #346 18831769
    apostol121
    Level 1  
    rombu wrote:
    Nivona revived and works.
    As PCBs ship more so I have assembled and tested more displays.
    If someone needs it, I will pay it back at cost.

    NIVONA Caferomatica 830 Coffee Machine: Damaged Display Repair, AliExpress Replacement NIVONA Caferomatica 830 Coffee Machine: Damaged Display Repair, AliExpress Replacement


    Hello, I am interested in purchasing.
  • #347 18841559
    fiete325
    Level 6  
    rombu wrote:
    Thank you: Amigos, satanistik, smoczy, j4rek and others who want and deal with such topics.
    Nivona revived and works.
    As more circuit boards were sent, I assembled and tested more displays.
    If someone needs it, I will resell for a purchase cost.


    Hello rombu, which circuit did you use exactly? I used the one from satanistik and with the SSD1305 display. However, it is still mirrored. I think Satanistics used the SSD0301.

    Added after 13 [minutes]:

    Here are the files. I hope you can "save" something?
    Attachments:
  • #348 18842464
    SZARKOF
    Level 1  
    Hello, I am interested in buying the PCB with a display, anyone has?
  • #349 18845276
    melse
    Level 10  
    j4rek wrote:
    Attached, project gerberas generated in Altium Designer.

    Great work @j4rek !
    I uploaded the files to a pcb manufacturer and they say that the holes you drew (4 round holes for the plastic poles and 4 rectangular holes for the plastic 'clips') are not indicated for 'cutting out or drilling out' in the Gerber files.
    Because the holes are not indicated in the same layer with the board outline.

    At least that's how they work: ;-)

    Designs about slots/CUT OUT/ millings/ v-cut
    Please kindly make sure that the v-cut lines, cut outs, millings and slots are in the same layer with the board
    outline. If it is not in the same layer with the board outline, it will be missed. So please kindly check it before
    you place your order. If it is missed due to they are not in the same layer with the board outline, we will not
    responsible for it.(lf the slots are to be plated, it needs to be with the drill holes in the same layer, or it will be
    missed easily).

    Would be nice if you could adjust it in the Gerber files!

    Thanks again for all your work!!
  • #350 18846113
    j4rek
    Level 19  
    Everything is correct - these holes and cutouts are not in the project because I do not have the original pcb to measure their location accurately. They are merely plotted on the description layer for the approximate location of mounting elements for the black frame.

    In order to add them to the project, I would need a technical drawing with the location and dimensions of the mounts or re-access to the original pcb "EF691" for measurements.
  • #351 18850121
    melse
    Level 10  
    When I run into another defective Nivona display pcb in future, I will try to make a drawing for you. As I only had one pcb for repair that's already in my friend's machine now ;-)
    Or maybe someone else in the forum can provide the exact measures.
    Thanks!
  • #353 18855007
    lacima
    Level 1  
    Hi!

    Could someone know a place where to buy a new display for my Nivona 830? I dont have electronic skills to make a pcb. Or someone to make me a board.

    Thanks in advance,
    Laci
  • #355 18856614
    fiete325
    Level 6  
    Smoczy wrote:
    It works with SSD1305 and the content doesn't blink, there are no errors. When I finish the project I will attach photos. My goal is to solder the circuit on the board to gold pins, separate two gold pins and solder two wires. The whole thing with opening the display took 15 minutes.


    Hello Smoczy,

    it works for me too. However, the entire display flashes. Is this due to the voltage supply of the Step-Up or is it a control signal from the display? Thanks in advance.
  • #357 18862930
    melse
    Level 10  
    j4rek wrote:
    Below is the newer PCB revision "NIVONA SSD1305 ADAPTER" (V1r2) - including dimensions, indentations and mounting holes provided by the user fiete325 . The rest is unchanged.

    In the attachment gerber file to the new pcb revision.


    Great!
  • #358 18875896
    m_bardo
    Level 1  
    My respect, Beloved, especially those who are so persistent in helping :-)
    I have read this thread partially. I will say right away, I do not know about it and the display has died for me. I don't know anymore if it can be re-soldered or the display replaced? I am from Warsaw and I would like to have it fixed at a reasonable price. Please advise me what solutions we have at the moment?
    Thank you in advance for your help! ??
  • #359 18875942
    amigos
    Level 16  
    In my opinion, the best and simple solution is this J4rek project https://www.elektroda.pl/rtvforum/topic3435827-300.html#18633637.
    https://www.elektroda.pl/rtvforum/topic3435827-300.html#18635792
    https://www.elektroda.pl/rtvforum/topic3435827-300.html#18636985
    There is no need to program the system / and ask someone for a batch / and uses the original PCB, which is unlikely to break. At least I have not encountered such a case.
    Certainly, someone will come to you with an offer. If you want to repair it yourself, I can help. The most important thing you need is a J4rek board and a proper SSD1305 display. Links to checked from ali are in this topic.
  • #360 18880342
    darius70
    Level 1  
    Hello
    My coffee machine is Nivona 840, it has a display fault. I will order a paid exchange. I live in Gdansk. Would anyone be interested. I request information.
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Topic summary

The discussion revolves around the repair and replacement of the display for the NIVONA Caferomatica 830 coffee machine, which often suffers from display failures. Users share experiences with sourcing replacement displays, particularly the SSD1305 and SPD0301 models, and the challenges of soldering and adapting new displays to the existing circuit boards. Various solutions are proposed, including using a custom PCB designed by community members, which allows for the integration of new displays while addressing issues like image mirroring. Participants also discuss the necessary components for the repair, including capacitors and integrated circuits, and share links to suppliers for parts. The conversation highlights the collaborative effort to find effective solutions for display issues in NIVONA machines.
Summary generated by the language model.
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