Dating yamaha guitars by serial numbers
For my purposes, I labeled these pickups as "wide" or "narrow." One pickup is around 10 mm wide, and the other is about 12 mm wide.In addition, the standard 1/4” output jack solders directly to the PCB, rather than the ribbon connector.The first time I tried to repair a failed op-amp in a G-303, I realized that the pin-out documentation was wrong on the schematic.In Los Angeles I have seen jazz players using the G-303 plugged straight into a Polytone amp, just for the sound and playability of this great axe.
In terms of sophistication of design and electronics, the weighty Ibanez IMG2010 comes out way ahead of the G-303, but like the Roland G-707, the IMG2010 is a bit of an acquired taste, and its curious body design means that the Ibanez IMG2010 is virtually impossible to play sitting down without a guitar strap!
The cards are labeled as version "A." The published Roland documentation supports version "B: and "C." These rare "A" cards are unusual in several ways: the component layout is very different and the outputs trimmers seem to be arbitrarily placed on the board.
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