Search:

Type: Posts; User: Jomac

Page 1 of 20 1 2 3 4

Search: Search took 0.03 seconds.

  1. Replies
    10
    Views
    370

    This looks more like a Grounding or Earthing...

    This looks more like a Grounding or Earthing issue , in this thread I explain pretty everything it can be , the same applies to all sorts of interference on CRT's , yours fits perfectly into...
  2. Replies
    11
    Views
    292

    Hi Trav , Berzerk is a slightly different Sync...

    Hi Trav , Berzerk is a slightly different Sync output so it lock frequency will put it a bit more off center than most games , while it not important on a lot of games using the G07 you will need to...
  3. Replies
    14
    Views
    422

    I know that Point blank 1 has some RAM in the...

    I know that Point blank 1 has some RAM in the output stages that are quite voltage sensitive ( over voltage sensitive ) , EG: anything over 5.20v and they seem to fail yet I have seen the same RAM on...
  4. Welcome to the forum , probably best to have a...

    Welcome to the forum , probably best to have a look over this thread and as you will see what you have is exactly what I refer to in that thread....
  5. Replies
    13
    Views
    577

    Hey Joe , Mate if that was a problem on the...

    Hey Joe ,

    Mate if that was a problem on the neck board it would be displayed as the screen fully saturated in Green and retrace lines, with Blue and Red only visible in the background, so the...
  6. Replies
    14
    Views
    413

    Mate the purity on that monitor is not good...

    Mate the purity on that monitor is not good enough for the guns to work , the white needs to be pure white but in your video is clearly very patchy.
    It is worse on the top right quarter of the...
  7. Replies
    14
    Views
    1,734

    Monitor chassis grounding / earthing can be a...

    Monitor chassis grounding / earthing can be a complex thing to understand but it's worth remembering that any quality 110v chassis require a isolation transformer, even in the US these means a...
  8. Replies
    14
    Views
    1,734

    Might be easier if you call into the workshop...

    Might be easier if you call into the workshop after work or give me a call and I,ll give you a run through what to check etc.
  9. Replies
    14
    Views
    1,734

    Firstly forgot about what you see in MAME , that...

    Firstly forgot about what you see in MAME , that has nothing at all to do with genuine arcade neither do LCD monitors , very few game test patterns can be aligned perfectly on 30 year old arcade...
  10. Replies
    4
    Views
    322

    Firstly we don't use Vertical Sync, if you have...

    Firstly we don't use Vertical Sync, if you have anything connected to the V-Sync pins on the chassis you have found your problem.
    The only Sync connection used on that chassis is H-Comp -Sync ,...
  11. Have never seen one of these myself , never did a...

    Have never seen one of these myself , never did a lot of PC monitor work because unlike the TV market at the time PC monitor servicing was pretty closed shop.
    I doubt Rick Nieman would know anything...
  12. Replies
    31
    Views
    1,619

    The biggest problem with these boards especially...

    The biggest problem with these boards especially when things have gone wrong is that the main IC that looks like a normal EPROM is dead , It's actually a very old obsolete MPU with built in RAM &...
  13. Replies
    31
    Views
    1,619

    Autosteve , is spot about those awful Sentinal...

    Autosteve , is spot about those awful Sentinal Mechs, they caused a stack of problems and were also susceptible to static interference from the monitor so a shield had to be added to the cabinets....
  14. Replies
    20
    Views
    1,645

    Thanks Gibo that makes sense , will post a link...

    Thanks Gibo that makes sense , will post a link in this thread when I start the new thread
  15. Replies
    20
    Views
    1,645

    Yeah they are very complex , by far the most...

    Yeah they are very complex , by far the most complex arcade monitors ever made but this isn't the issue, it's they are incredibly dangerous to work on because with these it's the high voltage...
  16. Replies
    6
    Views
    373

    As already mentioned it looks like a whole back...

    As already mentioned it looks like a whole back of ram has stopped working , whatever you do don't press on IC's and don't waste any time pulling ROMS out and sanding the legs , if one of these...
  17. Replies
    3
    Views
    403

    If you look at the chassis with the focus and...

    If you look at the chassis with the focus and screen facing, to the left of the flyback there is a 22K Red Red Orange resistor ( it's in front of the large bipolar 4.7uf 50v cap ) if it is cooked...
  18. Replies
    6
    Views
    356

    Itís the same as the one beside it Q415

    Itís the same as the one beside it Q415
  19. This exact question and exact solution is already...

    This exact question and exact solution is already in the other thread you refer to, it even has a picture so not sure how it could be made any easier?
  20. Replies
    6
    Views
    532

    Picture of Factory / Service mode controls ...

    Picture of Factory / Service mode controls

    135484
  21. Replies
    6
    Views
    532

    Yep there is a hidden factory /service menu , I...

    Yep there is a hidden factory /service menu , I helped the guys from Team Neo-Arcadia make some new controls that plugged into the existing connector so you could access everything.
    You can adjust...
  22. The problem I have with these is I have no tubes...

    The problem I have with these is I have no tubes left for testing them on so I usually pass anything like this onto Des , Pretty much anything B&W , Vector / XY I haven't done for several years now.
  23. Replies
    19
    Views
    964

    Ignore the Black box, it is disconnected. What...

    Ignore the Black box, it is disconnected.
    What it is , a Spark detect reset delay box, LAI were forced to build these back in those days because kids discovered that using Piezo gas igniters and...
  24. Replies
    12
    Views
    1,813

    Most of the old 2 button LAI models were updated...

    Most of the old 2 button LAI models were updated with a new solid state controller board that Nigel from Sunrise produced , the manual that come with the new board was more comprehensive than the...
  25. Thread: Nanao MS8-26U

    by Jomac
    Replies
    13
    Views
    1,495

    The MS8-26 is made for one tube and yoke only ,...

    The MS8-26 is made for one tube and yoke only , the tube is a 63cm 26" Mitsubishi with a specific yoke for that chassis only.
    From your pictures I can't even ID that tube / yoke combination you have...
Results 1 to 25 of 500
Page 1 of 20 1 2 3 4