Radio, Stereo, and Compact Disc: Description and Operation
With the Ignition Switch in ACC or RUN, voltage is supplied through the RADIO Fuse and the YEL wire to the ON/OFF Switch in the Radio.The circuit is grounded at G150. With the ON/OFF Switch closed, voltage is supplied to the Solid-State Radio circuits to ground. Two wires connect each front speaker to the Radio. The rear speakers for the ETR radio share common wires from the radio. The ETR Radio has two inputs that other models do not have: Display Dim Signal and Clock/Memory Power.
The ETR model is a Radio that changes stations electronically. The frequency of pre-selected stations can be stored in the electronic memory. The ETR model also provides a digital display of time or station frequency. As in other models, the Head, Panel and Dome Lamp Switch controls panel light dimming. In the ETR model, dimming of the station and clock display is controlled within the Radio itself by means of the Dim Display Input Signal.
The ETR Clock memory and Radio memory functions are provided voltage at all times through the HORN-DM Fuse. If voltage to the ETR model is cut off, by disconnecting the battery, for example, the operator must reset the memory functions when power is restored.