| • | The electronically tuned radio receives power from the RADIO fuse
and CKT 43. The radio receives power when the ignition switch is in
RUN or ACCY. |
| • | The clock and memory circuits receive power from the Multi-Function
Alarm Module's Parasitic Power Control. The circuits receive power through
CKT 1733 at all times. |
| • | The radio is grounded through CKT 250. |
| • | When the ignition switch is in RUN or ACCY, the vacuum fluorescent
display illuminates. The display shows the time or radio frequency setting. |
| • | The radio illumination is controlled by the instrument panel lamp
dimmer. |
| • | When the headlamp switch is in PARK or HEAD, voltage is applied
through the dimmer control and CKT 8 to the radio panel light and the
internal circuitry. |
| • | When the headlamp switch is in PARK or HEAD, voltage is applied
through CKT 308 to the radio. The voltage signals the internal circuitry
to adjust the brightness of the vacuum fluorescent display to a level determined
by the voltage of CKT 8. |
Important: Electromagnetic Interference (EMI) may cause a fewer number of stations
to be received in 1 of the 3 modes. The EMI may
be caused by various vehicle components. This may be the cause of the differences
in reception. Inspect for components powered up in the 3 various key
positions. This may eliminate the following conditions:
| • | Engine running components |
