Akai GXC-310D Service Manual

Defines tape format, speed, and mechanical stability measurements.

Audio frequency reproduction range for different tape types.

Measures signal quality, noise, distortion, and output signal levels.

Details input parameters, recording/playback levels, and impedance.

Technical details of the recording/playback heads and motor.

Transistors, diodes, power requirements, dimensions, and weight.

Adjusting pinch wheels for proper tape path and rotation.

Measuring and setting take-up and supply reel torque.

Adjusting torque for tape winding operations.

Adjusting motor pulley and flywheels for tape tension.

Adjusting play and record micro switches for function.

Setting the reed switch for proper operation.

Aligning tape guides and pinch wheels for smooth travel.

Setting the height of the record/playback head.

Aligning the azimuth of the record/playback head.

Adjusting the 19 kHz filter for minimum level.

Tuning the Dolby recording circuit.

Verifying Dolby playback circuit performance.