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  1. Mukuro_W

    Nanao MS8-26 Issues after recap... [vertical collapse] [SOLVED]

    Sorry for delay, you should replace the two D1138 even if they test aparently good, also when work on ms8 26 pay attention when you are on vertical deflection area because it will be all the way cooked and all traces so fragile
  2. Mukuro_W

    Capcom impress repro sides art

    I have to repaint two Yellowed Capcon impress cabinets, just looking for repro sides art.
  3. Mukuro_W

    Nanao MS8-26 Issues after recap... [vertical collapse] [SOLVED]

    Use metal blue ones, those are just better than carbon resistors.
  4. Mukuro_W

    PVM1454QM: horizontal collapse

    While 1454qm and 14m2 are very similar they have a different power board, by the way, the good news is that I have 1450 with a burn in on screen, so I can dusmantle it and supply a power supply, already serviced with best lytics caps (nichicom ucy an uhe series only) fully tested and...
  5. Mukuro_W

    PVM1454QM: horizontal collapse

    Ok test all the polyester film caps on h stage there is one wich can cause this if just go out of is spec more than the 5℅ it's rate, also investigate into your psu board for components leaking
  6. Mukuro_W

    PVM1454QM: horizontal collapse

    Pvm 20m2, 20m4 2054 1454 1450, are all veriy reliable BUT, could happen that some psu ics fail alongside with the HOT and one of the two v. Transistor. More common is the 5v regulator wich release the monitor just dead with tally light on, another issue is the 200v line just near the...
  7. Mukuro_W

    PVM1454QM: horizontal collapse

    I have lots of those PVMs, beleave me your flyback is ok!
  8. Mukuro_W

    PVM1454QM: horizontal collapse

    And yes you should but I din't , I have covered them with an alloy foil then removed the ic, basically I have cooked them :) this worked anyway. Removing the lytics caps and replace them is also a good idea since in that area they often fail due to heat gen between the v. Blanking ic...
  9. Mukuro_W

    PVM1454QM: horizontal collapse

    If you have already checked the two dumper diodes then there is also an ic wich provide E/W control , if my memory help, it is the ic 509 , should be a LM3580, in the past I have repaired a 2054 with weirdo pincushion issues and just was this ic! You should use a hot air station to rework...
  10. Mukuro_W

    Sony PVM 2730QM Repair (Blue/Yellow tint)

    Hi, do you still have the 2730qm? I' m looking for parts, if you want you can sale me some parts.
  11. Mukuro_W

    Nanao MS8-26 Issues after recap... [vertical collapse] [SOLVED]

    You have to replace c433, r433, r436, q401, q402 and c437, plus you have to check for broken or cold solder joints just under q402 and q401 this is an hot area look also for broken traces. Q401 and q402 are both D1138 transistors, r433 2.2k 1/4w, r436 15k 1/4w c433 10uf 50v .
  12. Mukuro_W

    PVM1454QM: horizontal collapse

    Have you already checked the others psu rails, on pvm 20m2 m4 there is a 5v ic regulator wich often fail alongside with the hot and another ipower regulatot ic
  13. Mukuro_W

    WTB: 2 x Capcom impress repro control panel

    I got a Capcom imoress in very good condition but without control panel and another one wich need the cp to be replaced too. Thanks in advance!
  14. Mukuro_W

    Alberto's Repro Control Panel Group Buy - Discount Available for Large Order

    I need two capcom impress repro control panels.
  15. Mukuro_W

    Possible issue with Capcom Impress chassis

    Before replace any part you should first study the circuit of the switching psu section then test the parts out of the circuit and if truly out of spec, replace . I will try to inspect into that board to give you some more infos and test points to check.
  16. Mukuro_W

    Possible issue with Capcom Impress chassis

    OK was too busy with a weirdo BVM 20F1 with faulty PA board this little board was sending the monitor itself in overload protection without any picture and HV, some GMK are on my bench I hope to working on them tomorrow. They are just spares ones and all working, as you can see the black frame...
  17. Mukuro_W

    Possible issue with Capcom Impress chassis

    I have to pull out one chassis from a cab to test it on bench to offer you a proper answer since its impossible to work on it when is inside the impress cab., I think I will do this for you just tomorrow and report. Have you already tested Q902 (FN651)? But most likely your chassis PSU switching...
  18. Mukuro_W

    Possible issue with Capcom Impress chassis

    When it Is on, is the picture perfectly stable?
  19. Mukuro_W

    Possible issue with Capcom Impress chassis

    The most important is find the perfect compromise in S correction, on MS9 the caps wich are responsible are c519 0.68uf and c531 0.47uf , so c519+c531 have a total capacitance of 1.15uf if this capacitance is increased we have a slow scan at side of the screen (more large square on left and...
  20. Mukuro_W

    Possible issue with Capcom Impress chassis

    This because there are some variation on MS9 chassis, ms 29su drive hitachi tube with less curvature than Toshiba tube and have different S correction capss due to this. Do you know what MS9 chassis chassis model is inside your cab?
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