Re: Tennis Tourney PCB Repair

Frank,

Are there any major differences between Tennis Tourney and Paddle Battle? I have a Paddle Battle PCB that I've been wanting to make an adaptor for, to fire it up and see if it works.

Brian

*********** REPLY SEPARATOR ***********

On 8/16/2004 at 12:41 PM Frank Palazzolo wrote:

>Hello,
>
>I just finished repairing a PCB from this game, and I learned a few things
>while I did.
>
>First off, I only have the PCB and no cab. I thought it was a "Paddle
>Battle" since that's what it says on the board - Apparently they didn't
>bother to label it as Tennis Tourney.
>
>Originally it was DOA, with a masking tape labelled "Zilch - no sync, no
>audio".
>Visually there was some heat damage near one chip, the last 7400 before the
>audio output. It probably latched up at some point.
>
>The power supply was fine. I replaced a 9316 in the vertical counter chain
>and the raster fired up - scores, but no ball, no audio, sometimes no
>paddles (coin up would reset the scores, but the paddles wouldn't always
>show up)
>
>I replaced the 7400 and the audio started working.
>
>I found that the PNP/NPN latch used in the coin circuit wouldn't stay
>latched. Furthermore, I realized this circuit is absolutely unused in the
>Allied Leisure versions of Pong, unlike the Atari version. So, I just
>grounded the output - and the paddles work fine every time.
>
>I replaced another 9316 in the vertical ball position counter, and now it
>works 100%.
>
>-Frank
>
>
>
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Received on Mon Aug 16 13:26:19 2004