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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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