Keyboard-transmitter will not transmit.

TM 11-5815-238-20

Table 2-2. TROUBLESHOOTING - Continued

MALFUNCTION

TEST OR INSPECTION

CORRECTIVE ACTION

3. Keyboard-transmitter will not transmit.

Be sure KEYBOARD switch is set to SEND.

If switch is set to SEND and unit does not respond higher category of

maintenance is required.

4. Teletypewriter does not give correct copy at desired range.

Step 1. Loosen and swing up shorting bar, and connect Multimeter AN/USM-451 between two terminals of

BIAS TEST MA.

2-22