I replaced my 63 flashers with #63 LEDs and they are staying on...
Any ideas?
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GRUMPY I've disconnected the 330ohm resistor via the ground wire. The flashers work in test mode but not in game activation. I.e. Spelling sorcerer.
I was incorrect there is 36vdc on the lamp circuit.
Do all the flashers have to be replaced with LEDs for this to work?
I replaced both pair in the play field and they work fine... The dragon eyes flashers in backglass won't fire even if I put back the ground wire and use regular bulbs in play. It will fire in test mode in any combo.
I don't really have a way to test the roms.. before I buy new ones, how could I test if it's an input issue? I don't really understand what you mean there. Sorry for my ignorance, and thanks again for all the help.
Quoted from GRUMPY:Well there are instructions in the ROMs telling the CPUs if this switch then turn on this bulb and add X points. For solenoid #7 to be turned on by the Pia chip there has to be a switch input or a combination of switches that need to be hit in the proper order for the CPU to tell the Pia chip to send an output to the TIP to turn on the bulbs. U-15 Pia chip looks for switch inputs then transmits this info on the data lines for the CPU chip.
OK, sorry to have made you explain that.
I've been looking at getting new ROMs since mine are L1 anyway. Its a place to start. Im not sure im up to reprogramming them now.
Thanks.
@Grumpy, I'm. It not sure if I have or not.
I've run all the basic diagnostic tests 1-4 in the manual. I'll look that up tonight.
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