CPS1.5 board without battery = Phoenixed?

[shmupsrocks]

Should all CPS1.5 boards have a coin battery in that circle on the top board?

https://imgur.com/a/reb9CuL

If it's still working without then it's Phoenixed?

[NoAffinity]

If running original code, a battery is required. If running with no battery then it is running decrypted code.

(Phoenix roms are only available for cps2)

Sent from my SM-G955U using Tapatalk

[shmupsrocks]

Ok it sounds like that circle on the top was the only possible location for a battery on these. I'm guessing a battery isn't needed with original ROMs if using an Infinikey.

[NoAffinity]

Correct and correct.

[NoAffinity]

Another thought - depending on how the game was desuicided, there may have been modifications to the c board. Check the underside of the c board. Details on desuiciding which required modification, are here: http://www.arcadecollecting.com/dead/ You may be in for undoing those mods in order to return the board to native rom operation.