[C320-list] engine panel question

[Scott Thompson]

I recently did some night sailing, which we do not do very often. When 
running the engine I noticed that there was no light on the tachometer 
or fuel gauge (both on the left), in contrast to the voltage and temp 
gauges (on the right). Does anyone know whether the lights are 
replaceable separately from the gauges themselves? Given the pattern in 
might be a loose wire rather than burned out lights, but I'd like to 
know what are the possibilities before removing the wheel, opening the 
panel, etc.

This is on a Yanmar 3GM30F, 1999 vintage, European model engine. The 
panel is the standard Catalina panel from 1999.

Scott