Top Racer

[Lurch666]

Got a pole position bootleg called top racer.
It has three 36 pin edge connectors and by looking at the GND and +5V it doesn't appear to mach any pinout I can find.

I connected the +5V and GND and then used my scope to find SYNC & RGB.

The board is booting but stopping at a ram 6 error so next thing is to figure out which ram that's referring to.

Anyone got this boardset and can shed some light on it?

 

[Bods]

No help probably but thought i'd seen it mentioned recently

https://www.ukvac.com/forum/threads/pole-postion-2-pcb.87569/#post-609989

 

[favouredson]

According to the PP manual it is one of three on the CPU board. 7H on a Namco board or 7J on an Atari board.
Look for three RAM ICs together and it should be one of those.

Faulty customs (or dodgy connections/broken traces on them) can give RAM errors, as I found out on a Xevious board last year...