13 MAINTENANCE

■About protection indications

Check the temperature

The IC-7700 has a 2-step protection function to protect the final power amplifiers.

The protector monitors the power amplifier temperature and activates when the temperature becomes extremely high.

• Power down transmission

Reduces the transmit output power to 100 W. “LMT” appears beside the transmit indicator during transmit.

•Transmission inhibit Deactivates the transmitter.

The transmit indicator is displayed in gray during transmit.

When the protector is activated, wait until the power amplifier cools down using the transceiver in standby or receive condition.

NOTE: DO NOT turn the transceiver power OFF

when the protector is ON. If you do, the cooling fan

will not function and it will take longer to cool the transceiver.

The power amplifier temperature can be monitored in the multi-function meter, TEMP gauge.

■Screen saver function

∫

√

DISP

PREVIEW

SET EXIT/SET Main dial

F-1

F-2

F-3

F-5

F-7

The IC-7700 has a screen saver function to protect the LCD from the “burn-in” effect.

qPush EXIT/SET several times to close a multi-func- tion screen, if necessary.

wPush [F-7•SET] to select set mode menu screen. e Push [F-3•DISP] to enter display set mode.

r Push [F-1•Y]/[F-2•Z] several times to select the “Screen Saver Function” item.

t Rotate the main dial to select the desired time pe- riod for the screen saver activation from 15, 30,

60 min. and OFF.

• Deactivate the screen saver with “OFF” selection.

yPush [F-2•Z] to select the “Screen Saver Type” item.

uRotate the main dial to select the screen saver type from “Bound,” “Rotation” and “Twist.”

•Push and hold [F-5•PREVIEW] to display the indication for your reference.

i Push EXIT/SET twice to exit set mode.

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