Table 4-2. VOLTAGE MEASUREMENTS, JACK PANEL ASSEMBLY

TM 11-5895-1141-34

Location

Condition of Operation

Voltage

24 2 v

R303-R308 junction to

Any

24 v return

R308-CR301 junction to

Any

12 + 1 v

24 v return

11 1 v

Q301 collector to emitter

Keying switches open, channel

select on LOCK or NONLOCK.

Q301 collector to emitter

Any keying switch closed,

0.5 v Max.

channel select on LOCK or NON-

LOCK

NOTE

Refer to figure FO-3 for component locations.

Table 4-3. VOLTAGE MEASUREMENTS, MICROPHONE AMPLIFIER ASSEMBLY

Location

Condition of Operation

Voltage

+24 2 v

E5, E9-13, E15-18 to E1-2

Any

E14 to E1

Any, LAMP BRIGHTNESS control

14 to 22 v

rotated over range

variable

+12 0.6 v

C1204+ to E1

Any

7.3 0.5 v

CR1204 anode to E1

Any

NOTE

Refer to figure FO-7 for component locations.

4-3