MAMEWorld Forums - The Loony Bin - Re: Unknown Pong clone in bootleg blue...

> Okay...so I see two slide switches on pcb which I will guess first one is for the
> winning score. Does 11 and 15 appear next to one of the slide switches?

Yes, 11 -- 15 by the upper left switch.

>
> The second slide switch could be for operator to set pong/ball speed to either fast
> speed or slow speed. That is what is available for Chicago Coin's TV Ping Pong pcb.

Second switch, the one on the right, says S -- T.

>
> imo this is why I consider some of the pong pcbs that have additional features such
> as these could be considered second generation arcade pong systems.

Yes, there are definitely several more TTL chips on this board compared to my Rally board which had 2 more chips than a standard Pong.

>
>
> I am note sure yet of what company marketed that pcb you have in the photos. If it
> was Chicago Coin or Mirco, there should be something printed on pcb. Likely marketed
> by a company even smaller than Mirco imo, but not sure yet of which company. There
> could be something on Dan's site or also on TAFA.

On the front, "REV A" appears in the upper left corner and a faint "BENCH TEST" stamp appears on the upper right heat sink area.

On the back, "EC-715" appears in the upper right corner.

The only other markings are the component designations. Also, there is no A,B,C... 1,2,3... markings for the rows and columns. Instead, each IC has just a number, 1 through 91. Most of the chips are date coded from 1973 with a few marked for 1972.

>
> Anyway, if that is also your pcb, another good find there.

Yes, both Pong boards and the two smaller boards I posted for $49.99 and no S/H!

At the very least, I'd like to figure out power and video out connections and see if these boards work! I'll post results if any.