TB 9-6625-2204-35
CH2
PANEL
CH4
SWITCHED
POWER
6 AMP
MODE C ENCODER SIMULATOR
LIGHTS
AC POWER
ON
POWER
ON
TEST CONDITION ALTITUDE
28V
D4
C1
A1
C2
A2
C4 A4 B1 B2 D2 B4 IDENT OHMS
VOLTS
IN
OFF
CH1
6V
OFF
10 AMP
1/2 AMP
2 AMP
OUT
DC
DC
AC
DIGITIZER
SUPPRESSION AUX
TRANSPONDER SET CONTROL
OUT TRIG IN
IN
MODE 4
MODE 4
AUDIO
CAUTION ENABLE
COMPUTER
AUDIO COMMON
TRIG
METER
SELECT
PIN d
DC
LDG GR
DISPARITY
UP
AC
REPLY DOWN
PULSE GENERATOR
INTERRUPT
MODE C
POWER TRANSPONDER MODE 4
REPLY
ZEROIZE INTERROG
AC CONTROL
DC CONTROL
ENCODER
TEST SET COMPUTER
INPUT
OFF
OUT
INTERRUPT
NORMAL
POWER MODE
X PULSE
AC/DC
OFF
DC ONLY
CAUTION
LIGHT RESET
TRANSPONDER
TRG
PIN 1
92 Ω
PIN 47
(6) Set DC CONTROL fully ccw and 6 AMP POWER circuit breaker OFF.
(7) Reinstall jumper plug P5 removed in 7 h above.
b. Adjustments. No adjustments can be made.
NOTE
Multimeter ME-358/APM-239A is not supplied with all
Transponder Set Test Sets AN/APM-239A. Perform paragraph
10 only if applicable.
10. Multimeter Accuracy
a. Performance Check
(1) Connect calibrator positive (+) output terminal to multimeter (ME-358/APM-
239A) connector J1 pin B, using appropriate lead. Connect calibrator negative (-) output
terminal to multimeter connector J1 pin M, using appropriate lead.
(2) Set multimeter function switch to MOD BIAS (25 VDC). Adjust calibrator
output controls for a 30 V dc indication on multimeter.
(3) Calibrator will indicate between 28.8 and 31.2 V dc.
(4) Adjust calibrator output controls for a 20 V dc indication on multimeter.
Calibrator will indicate between 18.8 and 21.2 V dc.
