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Ok, this is a preliminary schematic of the Zemco Driving Computer. There is no model number, but the component side of the board has a "PWC 1-0" in the lower right corner. The circuit side has a "PN-3245" towards the center of the left half of the board.
This is a 5-button 6-function driving computer: SPEED, DISTANCE, TIME, FUEL (consumed), and MPG (instantaneous/average). It has a flourescent readout. And I would like it to work again! (The manuals can be found here )
The reason it doesnt work is: I blew up transistor Q2 with a short circuit. If you really want the long story, email me . Q2 is a NB 313Y. The reason I couldnt identify Q2 is that there is a crater where the part number is supposed to be. A chart of possibilities based on the remnants of the part number is here .
For a pinout of the larger chips, click here . For a layout of the circuit board, click here . And this is what it looks like.
Please contact me with any suggestions and remedies.
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