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| |-+  Bally 5000, 5500 and Others.
| | |-+  Spotty display on a Bally V5500		 0 Members and 1 Guest are viewing this topic. « previous next »
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Author Topic: Spotty display on a Bally V5500  (Read 6236 times)
proten
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« on: May 30, 2012, 12:13:32 AM »
I have a Bally V5500 that has spots on the card faces.
I have two other boards that work great so I know that it is the one board.
Could it be a bad video chip or ram?
Which chip is which (mains,video,memory)?

* 011.JPG (1955.69 KB, 1936x2592 - viewed 471 times.)

* 0081.jpg (724.7 KB, 968x1296 - viewed 499 times.)
« Last Edit: May 30, 2012, 12:59:03 AM by proten » Logged
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proten
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« Reply #1 on: May 30, 2012, 12:21:18 AM »
More pictures

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* 0061.jpg (599.74 KB, 968x1296 - viewed 454 times.)
« Last Edit: June 05, 2012, 12:23:30 AM by proten » Logged
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proten
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« Reply #2 on: May 30, 2012, 01:06:53 AM »
Two more.

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* 0121.jpg (482.62 KB, 968x1296 - viewed 475 times.)
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proten
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« Reply #3 on: June 01, 2012, 12:52:45 AM »
Nobody has any ideas?
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pigsfly
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« Reply #4 on: November 02, 2013, 04:28:44 PM »
Try a RAM clear, worked for me . . .
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proten
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« Reply #5 on: November 02, 2013, 05:49:54 PM »
Ram cleared and no change.
Thinking it may be a ram chip or video chip.
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dhellis
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« Reply #6 on: January 06, 2014, 08:21:11 PM »
Quote from: proten on November 02, 2013, 05:49:54 PM
Ram cleared and no change.
Thinking it may be a ram chip or video chip.

I would think ram chip before I would think of the video chip. I have seen arcade games that act similar and those
have been due to bad ram.

Any chance you have a schematic for this particular board? I am looking to find which IC(s) control the Deal/Draw
buttons so if you have it then it would be greatly appreciated
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