HYT TC-518 Service Manual page 46

TC-518 Service Manual
Removing the Earpiece/Microphone
Loosen and remove the screws.
Note: Using the radio with audio accessory may affect the waterproof performance of the radio.
Attaching/Removing the Encoder Knob Cap
Unclench cover of the encoder knob by a flathead screwdriver at the dent of the encoder knob (as shown below).
Turn the screw in the middle to remove the encoder knob, and turn the fixed nuts of the encoder switch.
As for the attaching method, it' s on the contrary.
Figure 12
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