Page 4 of 4 FirstFirst ... 234
Results 31 to 34 of 34

Thread: For new people : Repairing PCBs yourself

  1. #31
    Join Date
    Nov 2014
    State
    NSW
    Posts
    438
    Mentioned
    15 Post(s)
    Quoted
    104 Post(s)

    Is there any value in original boards from an authenticity point of view? I have recently replaced my cpu on pinball pool with a pascal board on account of the fact that my original board had corrosion from the battery. Is it worth keeping or is a board with leaking battery corrosion to much trouble to fix

  2. #32
    Join Date
    Jan 2009
    State
    Cairns
    Posts
    13,850
    Mentioned
    456 Post(s)
    Quoted
    3734 Post(s)
    Quote Originally Posted by Jamie View Post
    Is there any value in original boards from an authenticity point of view? I have recently replaced my cpu on pinball pool with a pascal board on account of the fact that my original board had corrosion from the battery. Is it worth keeping or is a board with leaking battery corrosion to much trouble to fix
    Gottlieb CPU's are notorious for failing and being 100% unrepairable due to the "spider chips" that are totally unobtainium. Battery damage is the LEAST of their worries!!

    The best you you could have done is exactly what you did - throw away the original - in fact better, smash it with a hammer to prevent some poor sod wasting days of their life in a vain attempt to repair it (it NEVER works with these boards).

    Other machines and boards are a different story and I alway prefer to repair rather than replace where possible and practical.

  3. #33
    Join Date
    Mar 2013
    State
    Truganina, Victoria
    Posts
    7,753
    Mentioned
    407 Post(s)
    Quoted
    2837 Post(s)
    Quote Originally Posted by Jamie View Post
    Is there any value in original boards from an authenticity point of view? I have recently replaced my cpu on pinball pool with a pascal board on account of the fact that my original board had corrosion from the battery. Is it worth keeping or is a board with leaking battery corrosion to much trouble to fix
    dont smash them. sell them. most of the people with the skills to repair them cant do it economically as a service for their normal hourly rate (its cheaper to just buy a new one) but they will sell if you put a fair price on them. A lot of us tend to burn hours meditating over old boards doing our own repairs after hours for the sheer enjoyment of it.

  4. #34
    Join Date
    Aug 2018
    State
    QLD
    Posts
    14
    Mentioned
    0 Post(s)
    Quoted
    4 Post(s)
    Quote Originally Posted by Mrvfone View Post
    Hello,

    If you buy a non-working board from e-bay for $30.. You may have to spend that again just getting it to work or even trying to diagnose it.. And i`m not including the hours of time this might take!

    Unless you have a stash of old boards you can grab parts off, Parts will have to be bought new, Sometimes they can only be sourced from the US. This can get expensive and time consuming as you can see.
    This is the problem I have right now.

    I bought a Revolution X 3 Player arcade machine and everything on it is broken.

    Sound Board: The sound board caps had puked all over the PCB... I fixed this by replacing the caps and repairing the corroded traces. Actually fixed it.. Woohoo!

    Video Board: I thought this would be easy to fix but it's been doing my head in for for the past 18 months. When you turn it on it says some of the VRAM modules are faulty. Okay... so just order some more. Nope can't find them anywhere. So I ordered the NOS next model chips from the U.S hoping they would work... parcel get's "lost" by customs. Forced to order a 2nd lot. 2nd lot arrive, try and solder on, extremely difficult as they are Surface mount and the pins are under the chip. Still doesn't work. Pretty sure it's because it's not the exact same model. So I unsolder a working chip to move it to one of the other spots to see if it's some sort of trace issue. Can't get it to work either. Try putting it back into original spot.... now IT doesn't want to work.(think it's my bad soldering though) Argh! Meanwhile 6 months later customs "finds" my original chip order and I receive it. So that's about $70 or so in postage. Looks like I need to find a board with these exact chips now.

    CRT Chassis: Meanwhile all this is happening, my CRT Chassis which was working decides to die. I checked the fuses, fuse is blown. Replace fuse. Fuse blows. I take the chassis out and check it... someone has gone to absolute town with this thing, it's covered in old flux, it's got bodge wires galore, sloppy solder joints fixing up broken traces, corrosion on the component legs and some of the caps aren't even in both holes on the board. Consider this one a write-off so order a Wei-Ya universal replacement(I know, I know, Wei-Ya are terrible, fix your original... only problem is my original IS a Wei-Ya!) so that's another $220 shipped

    I don't even know if the Gun coil board works yet until the Video Board works, so it may need replacing yet.

    My plan is also to turn this machine into a Rev X/Terminator 2 Hybrid machine so I'll also need Terminator 2 video board, sound board and possibly gun coil board(maybe able to use Rev X one for both).

    Seemed so cheap when I bought this machine off Gumtree!

Page 4 of 4 FirstFirst ... 234

Thread Information

Users Browsing this Thread

There are currently 1 users browsing this thread. (0 members and 1 guests)

Tags for this Thread

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •