Quoted from crashpad:Thanks for your help, OLDPINGUY and barakandI –
Yes, that is correct – I'd thought that 555 was all I needed (newbie to LED swaps)...
I checked the schematic and it shows General Illumination 5.9V AC, and the Pac Maze 5.4V DC; the order shows I bought 6.3V AC/DC Twin 2835 from Comet Pinball, but the bulbs themselves say 'AC'.
So it isn't as simple as having the correct bulb type, I also need to be aware of the voltages before swapping and whether AC or DC voltage?
I did check Comet's site, and the two wedge bases they show are #555 Bayonet (6.3V) and #906 Bayonet (12V), so possibly the coin door is 12V?
Is there a 'how-to' guide for converting various machines to LEDs here?
Thanks again for all your help, I appreciate it!
That is correct. Schematic shows coin door should be 5.9 VAC. Take a meter and measure. Be aware that GI illumination is not regulated, so it can subject the LEDs to large spikes at power on, which probably smoked a component in your LED.
There isn't any single how to guide for LEDs because there are so many different LED technologies and so many different games. These games just weren't designed to have these sensitive solid state devices installed in place of filament bulbs.