Kenwood TS-990S Operation Manual - Page 16

1 INSTALLING AND CONNECTING THE TRANSCEIVER TORQUE ADJUSTMENT FOR TUNING (M) CONTROL You can change the rotation torque of the Tuning (M) control as desired by pinching the ring at the back of the dial, then rotating the dial. Clockwise increases the rotation torque and counterclockwise decreases it. Tight Loose Hold the ring securely, allowing you to rotate the knob. ACCESSORIES CONNECTIONS (FRONT PANEL) HEADPHONES (PHONES) The PHONES jack accepts 2-conductor (mono) or 3-conductor (stereo) headphones with an impedance of 4Ω to 32Ω (standard is 8Ω) and a 6.3 mm (1/4") diameter plug. While the headphones are plugged in, the audio line for the internal speaker (or an optional external speaker) is muted and the audio is heard through the headphones. The following optional headphones can be used with this transceiver: • HS-5 (monaural) • HS-6 (monaural) Note: ◆◆Headphones with a higher impedance also have a higher volume level. ◆◆Refer to "BASIC OPERATIONS" for details of configuration for the mixing balance to the headphones output and the left and right reverse. {page 4-26} Straight Key (Commercially available) Paddle (Commercially available) Headphones (Optional or Commercially available) FRONT PANEL USB Flash Drive and USB Keyboard (Commercially available) 1-2 GND(STBY) MIC PTT DOWN UP GND(MIC) NC 8V(10mA max) Microphone (Optional or Commercially available) Microphone Connector (Viewed from the Front Panel Side) Index Contents