Section VII
TABLE 7-2. CONSOLE TEST PROCEDURES (cont)
Normal
Circuit or
If Indication
Step
Procedure
Indication
Function Tested
Is Abnormal
1
No indication on
Meter is not in
Same as part II, this step
Short in wiring. Check
ExC VOLTS
except:
circuit.
Part
out and repair.
meter.
IV
MODE SELECTOR to
COMP.
1
Indicator lights
These indicators are
El and E2 NORM. -REV.
Check for burned out
connected in parallel
switches to NORM. , then
shall light at each
lamps.
Part
position.
with E1 and E2 volt-
V
REV.
ages and indicate
Perform E1 and E2
presence of E1 and E2
Observe E1 and E2 indi-
voltage range checks,
cater lights.
steps 4 and 5.
power supply voltages.
1
Indicator lights
These indicators
E1-E2 CHECK switch to
Check for burned out
verify operation of
lamps.
E1 CHECK and E2 CHECK.
shall light at each
Fart
position.
E1-E2 CHECK switch.
VI
Observe E1 CHECK and
Check E1-E2 CHECK
switch.
E2 CHECK indicator lights.
Replace rack-panel assem-
bly in case.
Angle Indicator Control
2
Transformer 1A8B1 Index
Part
Error Test
I
Replace angle indicator.
Connect cable assembly W1 Refer to part VII,
Field Tester generates
from 1J1 of Console to
this step.
magnetic heading in-
Replace angle indicator
Power Cart.
formation to control
amplifier.
HEADING ERROR
transformer 1A13B1
Connect Field Tester cable readout shall indi-
and null detection
If neither of the above,
cate 0 DEGREE
assembly W4 end W4P1 to
circuits in angle in-
replace Console.
60 MINUTES.
dicator and angle
field tester 5J2.
indicator amplifier.
Connect Field Tester cable
assembly W4 end W4P2 to
Console 1J4, and end
W4P3 to Console 1J3.
See figure 7-1.
E1 NORM. -REV. to
E1 REV.
El magnitude controls to
90-10-0.
MODE SELECTOR to MON.
E2 NORM. -REV. to OFF.
E1-E2 CHECK to OFF.
POWER ON-OFF switch to
POWER ON.
(Continued)
7-3
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