Before I send the board off to Clive at Coin-Op Cauldron, I thought I would "ask the forum".
Customer brought in an auction-buy Dr. Who, which had been on route for many years based on permit stickers and overall condition. Asked me to "get it playing".
Customer told me the game had been working, but judging by the coils and dis-assembled parts hanging under the playfield, missings pieces, etc, I wasn't so sure.
Power supply seemed to be outputting the correct voltages, so I plugged it in with the customer still present. I'm glad I did, because when I switched on the power, its as if a mini-flash-bang went off on the sound board!
After the smoke cleared, I determined that C28 went all 'splodey on us. What's strange is even though the cap was blown clean in two, I STILL GET CONTINUITY across the legs of the cap! I'm wondering if the traces somehow got shorted in the "explosion"? Or maybe the short CAUSED the explosion.
Another question is, IS THIS EVEN THE RIGHT BOARD? Dr. Who manual calls for a 12738-20006 sound board, but the board in the game is a 12742-20006. Are these interchangeable?
Any and all thoughts are welcome.