Hi, there is a bourned resistor in my variax 700 acoustic.

I can't use it with battery. It only works with external power supply.

Exactly after the + connector of the 9V battery, in the central circuit, there is a resistor, and then a diode D5.

I think the resistor is to prevent from alimentation polarity inversion and may be a 0 ohm but better look at.

Does anyone can look how much is the value of the resistor?

Does any one have the electric scheme of the guitar?

Thanks