Electronic apparatus, external adjustment device for the same, and adjusting method for the same

An electronic apparatus, comprising:

• a reference signal generator configured to generate a reference signal;
• a temperature sensing unit configured to measure the internal temperature of the apparatus and to generate a temperature signal having a characteristic that varies in accordance with the internal temperature of the apparatus;
• a drive unit configured to generate a drive signal and to output the drive signal to a motor coil of a unit to be driven;
• a receiver configured to receive a signal transmitted from an external adjustment device via the motor coil;
• a detecting unit configured to detect the type of the signal received by the receiver;
• and
• an examining unit configured to output a test signal via the motor coil to the external adjustment device, the test signal being indicative of the temperature-varying characteristic of the temperature signal, based on the detection result of the detecting unit.