PE+ Tabletop video problem

[L8ndeb]

Hi Guys,

Came in this morning and was hit with #8 (PE+ tabletop video poker) and a pixelated screen.

Please see attachment for a pic.

I have checked for loose connections, dirty connections, press and held the self test switch, reseated the character generators, and checked for bad pins on the monitor. I also swapped processor boards with the machine next to it, and the pixelation goes away. Although I do get cmos errors as the board is not the same model. What do I check on the processor board? Anybody have an idea what to do next? TIA

[proten]

Did you check the battery?

[L8ndeb]

Outside of the solder connections......no. I will first thing in the a.m. Thanks

Took a quick measurement just now......battery voltage with board out of machine is 3.68v.

[L8ndeb]

Checked the battery and was putting out 3.68V Went as far as replacing it, and still no change. Any suggestions as to where I can look on the processor board?

[proten]

The next thing I would try is a clear and reset up.

[jay]

It looks like one of your video chips has gone bad.

There are 4 graphics chips MXO MGO MRO MBO  and a smaller Caprom chip.
If you have a Green colored super board this chip will be labled something like CAPX731 otherwise the older brown (non superboard) will have the chip labled like CAP731 (no X). THe number varies from game set to game set.

Chips typically don't go bad unless they have gotten a good zap of static so I would blame corrosion and casino funk (organic growth)

I would start by re-seating these chips. If you have not pulled chips before - be gentle to avoid bending/breaking legs - ease each side of the chip up using a small flat head.

Observe that the chip has either a knotch or a small hole at the end of the chip.
This lines up with the knotch at the end of the socket.