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omf

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Posts posted by omf

  2. Posted

    15 hours ago, madperry said:

    Thats too bad.  I would love to buy it.  Tried contacting them about future availability,  and got no reply.

    if i were you i wouldn't bother. as someone who ownes a copy i can honestly say its not particularly good, also difficult to play.

     

    combining basically a shooting game and breakout into one does not work well.

    • Like 2

  3. Posted

    13 hours ago, SainT said:

     

    Ooh, that is interesting. I have a limit of 81 tracks for CD images currently, I'll have to increase that if it uses more. If you can (privately) provide a link to the image I'll take a look.

    i did mention this previously on a twitter pm but as you didn't reply i thought you were not interested in it so i didn't peruse any further.

     

    i will sort something out and get it to you

  5. Posted · Edited by omf

    the switch is a known bad component, especially after 30 odd years being sat around.  good practice is remove it, disassemble and make the internals shiny again with your preferred method, i use brasso then polish off

     

    apply dielectric grease and reassemble and solder back in failing that replace with a different switch

     

     

    • Like 1

  6. Posted

    if you cant get anything useful out of this thing after replacing the video ram chips i have had trouble personally with the following components

     

    the two main ram chips      after deciding to replace all the chips on the board because they were cheaper then the two ram chips, it turned out to be the ram chips or chip i think it was that was dead, not everything else 🤦‍♂️

    the clock crystal on a ntsc board (one pin had broken so it was only attached with one.  getting a replacement for that was an issue due to overpriced ebay shipping, had to get someone in the US to get it and send it to me so i could get it at a reasonable price.

     

     

     

    i still have an issue with my French RGB board (which is the one the ram chips were dead on) where it displays faint white vertical bars on the screen,  i have replaced most of the video circuitry with new but it is stll doing it.   most annoying,  apart from that the machine turns on and functions.  its not the vdp as swapping it into another pal board and testing the board it was swapped into the video is fine, so i have been stumped on that one for some time unfortunatley

    • Like 1

  8. Posted

    just a note that console 5's installation guide for the 5v ram is for ntsc boards, and although can e done on pal boards you cant blindly go and do the same wireing because the components are different / different places.  i have done a 5v ram mod on a pal machine so i may be able to help if needed

     

    • Like 1

  9. Posted

    very interested in a new version of this,  the only thing that would be useful is a better way to program the boards. the first version seemed annoying to program.

     

    being able to program / reprogram boards withoutout manual chip programming and soldering would be very useful!

  10. Posted

    1 minute ago, NeonSpaceBeagle said:

    do ps1 caps go bad? I mean I guess eventually all do, but is this common now?

    well in this articular instance, i got one off ebay in the hope to put a MODE in it and there was some damage to various board components,  some of the small capacitors look a bit on the bent side like they have been knocked possibly when the mod chip i found in it was put in, so if i can get it working again, i was going to do a recap as good practice due to the previous owners uncaring work.

     

    the auction said it was working but then stopped reading discs when they tested it, so i thought it was a bad laser which would be removed anyway for a MODE / XStation install, but sadly it wasn't quite that simple in the end.

    one issue was the small power cable for the laser movement was seized into the motherboard socket etc

     

  11. Posted

    3 hours ago, Classic Pac said:

    Seriously wouldn't it be cheaper buying what you need from local sources. There are lists online of caps for the PS1. 

    yes it would, my issue is the cap size.  getting the right capacitance or the same or more voltage is fine, but there are several sizes on the board, all the lists say capacitance and voltage not what package size they are

    and i know there are so celled better capacitors like the solid polymer ones that don't leak, those however only seem to be a specific range of capacitance.

     

    it all seems to be a rather grey area,  if a list exists including the package size also then i could and would go by that to DIY it

     

    possibly offer a kit purchase service for uk people i guess

  12. Posted

    i have a playstation 1 that could do with a capacitor kit, the only problem is that everywhere i have looked so far that deals in retro computer hardware do not stock kits for sale.

     

     

    Getting a kit from console5 or ebay (seems to only be a us seller on there selling them) i do not feel happy with.

     

    Once you have paid for the parts and extremely overpriced shipping and then ridiculous import tax on top, it makes this a particularly sour option for uk residents, paying $60~ at least for a set of capacitors is absolutely ridiculous!

     

    So im after a source in the uk, does anyone have any sources other than say rs or farnell,  i would prefer not to do the research if purchase capacitors in their individual form, i would prefer a kit for x board.

  13. Posted

    i did some tinkering and research today on this subject and found out it is reletively easy to extract the images saved in the MRQ files

     

    this is what i did to achieve this feat:

     

    open any mrq file in a hex editor
    using the functions of the hex editor select the selections and export the rew data for the box and screenshots,  offset 114 - 21937 (decimal) for the box, 21938 - end of file (decimal) for the screen shot
    goto this website: https://rawpixels.net/
    load either of the two images into the webpage
    set the image size for the image you have loaded,  box 88 x 124, screen 88 x 56
    set pixel format to RBGA
    set bpp1 = 5, bpp2 = 5, bpp3 = 6, bpp4 = 0

     

    you do not need to change any of the other options

     

    you will then see theat the correct image is then displayed at the top of the page above the options,  right click on it and use te save image as option (firefox) if using another browser use that browsers save image option.

     

    repeat for the other image, dont forget to change the image dimensions

    you shouldnt need to change the bpp options again

  15. Posted

    On 1/5/2021 at 5:06 PM, SainT said:

     

    That *IS* the program running. :)

     

    You need to run it from a command prompt and pass arguments on the command line.

    is there a way or tool or this maybe an idea for a tool for mrqtopng ?  sometimes you might want to edit the picture included within the mrq but as the image is not provided anywhere otehr than in the mrq it cannot happen

     

    i have come across this personally and would like to edit some images

     

     

  18. Posted · Edited by omf

    I would be in for one, however, it would depend on what you plan putting on the import sticker, paying 100$ for this and a shipping cost, then incurring probably a 50£ import tax bill sours the water to the point that it isn't worth the money all because our governments can't sort their shit out and agree on no costs

     

    Anything marked above $20 and it would not work for me due to unnessassary tax.

    • Sad 1

  19. Posted

    On 9/3/2020 at 11:42 AM, cdoty said:

    It's easier to order a set of boards.

    https://ebay.us/ASnj1W

     

    There is also one with a ZIF socket for easy testing.

    you can find the gerbers for these by using google,  it would be cheaper to get a batch made for yourself from jlcpcb to be honest

    you can then gold plate it if you wish and get the edge beveled if you want. along with different coloured boards, also order the amount you need.

     

    • Like 1

  20. Posted

    1 hour ago, Bomberman93 said:

    Does anyone knows the value of the variable resistor? I have to replace this faulty piece cause of some colour issues. 

    its set to 533ohm in my scart machine, however i do have some jailbars on the screen (colour is fine however) the dial it turned about 40% to probably a safe bet to say its a 1k or 1.5k pot

  21. Posted · Edited by omf

    Ok!

    i purchased a GCDual and had some trouble with it, as it turned out it was my own fault by not enabling a feature to make the sound work.

     

    sufice it to say one of my fix attempts was to remove the quicksolder board which damaged it beyond use.

     

    i am considering getting some more made so i can retry the installation,  i have downloaded the gerbers from oshpark.com and reworked them because there issues with it.

     

    i read that the qsb should in fact be 2mm but the board i received was 1.6mm, so i could fix this and get the correct sized 2mm boards done but that would put the price up quite a bit.

     

    is anyone i the market for obtaining any of these?  pcb manufacturers dont just make 1 board that i would need, i think the minmum is 5 boards, so i was thinking these could be offered at pretty much cost price to get rid of them and to help out others.

     

    post here if there is any interest in this

     

     

  24. Posted

    On 9/2/2020 at 12:27 AM, ChildOfCv said:

    there is a row of resistors and one diode.  R174, R170, R175, R172, and then a diode whose designator seems to be printed underneath.

    VR3

     

     

    On 9/2/2020 at 12:27 AM, ChildOfCv said:

    you see one diagonal resistor, R158.  Just below it, there is a capacitor straddling another resistor.  Neither designator is visible there.  What are those two?

    there appears to be no designator for these along with the resistors attached to the base pin of the transistors

     

     

    ill look for some more later

     

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