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Sinistar Cabinet Problems

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boardjunkie:

And just for the record, this board uses a different ram than the older WMS boards do. The cmos ram is a 6514 at location 1c near the cpu. See this pic:

http://www.robotron-2084.co.uk/jpegs/robycpunvramsocket.jpg

The socket shows where the chip is. There is no pin 22 since this is an 18 pin package. Pin 18 is VCC/stby.

Anyway....just install new batteries (clean the contacts first), power it up until it shows the cmos error, then either press the advance switch or turn it off for a few seconds and back on again. If the ram is good the error will clear and you should get the rug pattern while it goes thru the self test.

BewareILive:


--- Quote from: boardjunkie on May 21, 2012, 09:43:33 am ---And just for the record, this board uses a different ram than the older WMS boards do. The cmos ram is a 6514 at location 1c near the cpu. See this pic:

http://www.robotron-2084.co.uk/jpegs/robycpunvramsocket.jpg

The socket shows where the chip is. There is no pin 22 since this is an 18 pin package. Pin 18 is VCC/stby.

Anyway....just install new batteries (clean the contacts first), power it up until it shows the cmos error, then either press the advance switch or turn it off for a few seconds and back on again. If the ram is good the error will clear and you should get the rug pattern while it goes thru the self test.

--- End quote ---

I did clean the contacts and install new batteries, it didn't seem to make a difference. One of the chips on the ROM board seems to be rusted, would that need to be replaced?

lanman31337:

Any pics of your board by chance? 

BewareILive:


--- Quote from: lanman31337 on May 21, 2012, 04:32:44 pm ---Any pics of your board by chance?  

--- End quote ---

Only the LED 3 lights up, as shown in the first picture here.

Also, I had just recently unplugged the part below the power supply. It has the same effects if it is plugged in, I just forgot to do that.

BewareILive:


--- Quote from: lanman31337 on May 21, 2012, 04:32:44 pm ---Any pics of your board by chance? 

--- End quote ---



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