ic3b4ll's latest activity
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ic3b4ll replied to the thread How to dump 1mbit mask roms from a konami 80's pcb.There are two types of 1 megabit ROMs with slightly different pinouts. Those are mask ROMs so I'd expect them to use... Mask ROM pinout... -
you can get free kynar wire from inside disposable vapes! a free 500-1000mAh lithium ion battery too!!
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ic3b4ll replied to the thread Hello from Germany!.Hello!
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ic3b4ll reacted to channelmaniac's post in the thread MV1FZNB2 Garbage Screen/Green Screen Loop with
Like.
Click of death is most likely a RAM failure - Work RAM or Backup RAM... or a failure on the control lines to the Backup RAM. See if you... -
ic3b4ll reacted to channelmaniac's post in the thread MV4 top board issues, only slot 1 works with Like.
Nice fix! If you look closely you'll see that there are 4 repeating rows of chips on that top board. They are all connected together on...
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ic3b4ll replied to the thread Weird Raiden Fighters issue.Bad checksum may mean that the flash chip on the motherboard is bad. You could try to replace it.
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ic3b4ll replied to the thread MV4 top board issues, only slot 1 works.What @ack said :)
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You are mostly there finding the issue. As you have identified in the pics D2 is stuck high on slots 2/3 and probably 4. The 16 data...
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ic3b4ll replied to the thread MV4 top board issues, only slot 1 works.What version of the MV4 is it? The big one with loads of ICs or the newer with SMD customs?
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After reflowing the solder to the cartridge connector pins on the mainboard again, I'm finally able to get it booting. I'm much more...
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ic3b4ll replied to the thread MV1FZNB2 Garbage Screen/Green Screen Loop.I don't think you've created a mess for yourself, just changing the volume wouldn't have caused the board to stop booting. With that...
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ic3b4ll replied to the thread Mystic warriors pcb arent showing sprites..It's not bad if the sprites came back. There's probably a bad via or pad connection underneath the chip itself. Proceed as @stj...
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lift it, clean the traces and check for damage, re-tin the legs on the chip and re-fit it i'v had that type of issue with a midnight...
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ic3b4ll replied to the thread Mystic warriors pcb arent showing sprites..Maybe my wording wasn't the clearest. I was suggesting getting the normal running temperature range of good ones to compare with...
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ic3b4ll replied to the thread Mystic warriors pcb arent showing sprites..Oh, another thing. If either chip is *hot* it's shorted and therefore dead. Maybe we should start taking temperature measurements of...