(Topic ID: 223261)

Problems with WCS94


By Mark73

1 year ago



Topic Stats

  • 20 posts
  • 8 Pinsiders participating
  • Latest reply 1 year ago by arakissun
  • Topic is favorited by 2 Pinsiders

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Ribbon cable reseating (resized).jpg
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#1 1 year ago

Hi!
My world cup soccer will not start and boot.
Only some dots on the DMD. Any Ideas?

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#2 1 year ago

- Check fuses.
- Check voltages at test points.
- What are the LEDs on the boards showing?

#3 1 year ago

- check for battery leaking at CPU-board
- reseat ALL ribbon cables

#4 1 year ago
Quoted from RonaldRayGun:

- Check fuses.
- Check voltages at test points.
- What are the LEDs on the boards showing?

There is three leds...

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#5 1 year ago

Show the ones on the mpu board please.its the board to the left.

#6 1 year ago
Quoted from Phat_Jay:

Show the ones on the mpu board please.its the board to the left.

No leds

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#7 1 year ago

Check fuse F115. Also check the connector at J101 on the power board. Pull it off and examine it, does the connector (or the pins) look burned or discolored?

#8 1 year ago
Quoted from gunstarhero:

Check fuse F115. Also check the connector at J101 on the power board. Pull it off and examine it, does it look burned or discolored?

Could be something with J101. I wiggled it and something happened. It scared me

#9 1 year ago
Quoted from Mark73:

... It scared me

Haha! Really? Owning 9 pins, something happens and you’re scared?
Not a real Viking, are you?

#10 1 year ago

Your driver board is showing it has power but mpu board does not. Something between the two has a problem. Check the power connectors linking the two and the fuses. For giggles id pull the two boards and look on the backs of them for burn marks. Ifweelinate possibilities we’ll narrow things down.

#11 1 year ago
Quoted from Thor-NL:

Haha! Really? Owning 9 pins, something happens and you’re scared?
Not a real Viking, are you?

I just play on them. Not so good at repairs...yet

#12 1 year ago
Quoted from Mark73:

Could be something with J101. I wiggled it and something happened. It scared me

No need to be scared. J101 is 5V from your power board to your MPU. If your MPU doesn’t get power it won’t boot, surprise!

If the pins are loose or the connector is burned or damaged it causes that kind of behavior. Sounds like you need to rebuild that connector.

#13 1 year ago

For what its worth, your Power Driver board pictures shows LED4 out ( right in the middle of your picture), this is your +5V coming off the regulator on the Power Driver board. Nothing is going to work without that voltage.

#14 1 year ago
Quoted from gunstarhero:

No need to be scared. J101 is 5V from your power board to your MPU.

Not exactly...but it can effect it.

Yeah, I wouldn't mess with J101 with the power on; J101 is your AC transformer voltage coming into the Power Driver...You should be scared messing with that one.
pasted_image (resized).png

#15 1 year ago

Have you already verified F113 is good with your meter?

#16 1 year ago
Quoted from Pin_Guy:

Not exactly...but it can effect it.
Yeah, I wouldn't mess with J101 with the power on; J101 is your AC transformer voltage coming into the Power Driver...You should be scared messing with that one.
[quoted image]

Ah, thanks for the clarification. Thanks Pin Guy!

Plus, YES, always be careful around live boards. Don't be too scared to do anything, just PLEASE be smart about it.

#17 1 year ago
Quoted from Pin_Guy:

Have you already verified F113 is good with your meter?

F113 was ok but not F111. I replaced it but no change.

#18 1 year ago

Now LED4 is working and I have 5v and 12v at test points. But DMD is strange and no Lights on playfield.

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#19 1 year ago

Try reseating this ribbon cable as well as the short one between the MPU and driver board.Ribbon cable reseating (resized).jpg

#20 1 year ago

Also the ribbon cables must be in the right position.RED side to pin1 on PCB connector.

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