Radio Shack DX-392 owner manual Connecting to Primary Power, Internal Battery Power, AC Power

3.Replace the cover, or install addi- tional batteries for primary power as described in “Internal Battery Power.”

To check the back-up batteries’ power level, disconnect the receiver from the primary-power source. Then look at the receiver’s display. If it is dim, re- place the back-up batteries.

CONNECTING TO

PRIMARY POWER

You can power the receiver from inter- nal batteries, standard AC power, or your vehicle’s battery.

3. Replace the cover.

To check the primary-power batteries, turn off the receiver. The battery pow- er indicator appears on the display for several seconds. Fresh batteries show a power level of 7. If the indica- tor shows a power level of 2 or below, replace the primary-power batteries.

Internal Battery Power

Your receiver uses four D batteries. For the best performance, we recom- mend alkaline batteries, such as Radio Shack Cat. No. 23-550.

Follow these steps to install batteries for use as the primary power source.

1.Remove the battery compart- ment’s cover by pushing the cover in the direction of the arrow.

2.Slide four D batteries into the compartment, according to the polarity symbols (+ and –) marked next to the compartment. For easy removal, place the batteries on top of the lift-out ribbon.

Note: If you press RADIO POWER to turn on the receiver when the primary- power batteries are dead, E flashes on the display if back-up batteries are in- stalled.

AC Power

With an optional AC adapter, such as Radio Shack Cat. No. 273-1664, you can power the receiver from standard AC power.

Caution: You must use an AC adapter that supplies 6 volts with the center tip set to negative. It must deliver at least

400milliamps, and its plug must prop- erly fit the receiver’s DC IN 6V jack. Us-

ing an adapter that does not meet these specifications could damage the

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