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Procedure for replacing REC/PLAY and ERASE heads by unfastening screws.
Adjusting head azimuth screw for maximum LINE OUTPUT.
Measuring take-up torque for play, fast forward, and rewind.
Measuring back tension during playback using a tension gauge.
Adjusting tape tension by bending the pinch roller coil spring.
Adjusting tape speed to 3 KHz ±10Hz using a test tape.
Adjusting PAUSE timing by bending the pinch roller arm.
Adjusting head azimuth screw for maximum LINE OUT level.
Adjusting LINE OUT level to 0.82V ±0.5dB.
Adjusting VU meter to obtain 0VU indication at 0.6V LINE OUT.
Adjusting frequency response and bias for 10KHz signal.
Adjusting SVR102, 202 for equal record/playback output.
Handling LSI sensitivity to static electricity, temperature, and humidity.
Grounding equipment, tools, and soldering iron when repairing.
Preventing incorrect insertion and damage due to power.
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