Frequency display lamp segments fail to light when READ switch is pressed.

Table 3-2. Troubleshooting Procedures (Cont)

MALFUNCTION

Test or Inspection

Corrective Action

3. Frequency display lamp segments fail to light when READ switch is pressed.

Turn off R T unit PWR switch, install known-good R/T unit, then retest.

If all segments are lighted, send failed R/T unit to next higher level of maintenance. If not, notify

your supervisor.

4. TRANSMIT indicator does not light when handset is keyed.

Sequentially substitute the following components until the TRANSMIT indicator lights. Recheck unit after each

component is changed.

Handset

Power Supply

R/T unit

If TRANSMIT lamp still does not work properly, notify your supervisor. If substituting one of the

components repairs the radio, send the failed component to the next higher level of maintenance.

5. Communications cannot be made with another operating radio set.

Perform tests. inspections and corrective actions as outlined for Malfunction number 4

If Radio Set is repaired, send tailed component to next higher level of maintenance.

communications still cannot be made, notify your supervisor.

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