Specifications

TM 11-5820-670-30

2-26. TROUBLESHOOTING CHARTS.

(CONT)

CHART 2-24

Control Unit Troubleshooting

(Sheet 9 of 12)

FREQUENCY SELECTION CODE TABLES

The tables in this section indicate the pins of J9101 that are grounded and the pins that are not

grounded for each setting of the frequency selector switches. The grounded pins are indicated by zero

resistance in the tables, and the ungrounded pins by INF (infinite) resistance. Pin G is grounded for

all frequency settings from 30.00 to 52.00 MHz, pin J is grounded for all settings from 53.00 to 75.00

MHz, pin H is grounded for all settings from 30.00 to 49.00 MHz, and pin g is grounded for all settings

from 50.00 to 75.00 MHz.

TABLE

Resistance Measurements for KC Tuning Control Lines

LAST TWO DIGITS OF

FREQUENCY SELECTED

INF

RESISTANCE TO GROUND FOR

CONNECTOR J9101 PIN N NUMBER

INF

2-122