TABLE 7-2A. FLIGHT LINE CERTIFICATION PROCEDURE (CONT)
Circuit or
If Indication
Normal
Indication
Function Tested
Is Abnormal
Procedure
Step
These switches adjust
Replace defective regu-
Multimeter shall
2
S2 to E1.
lator supply 1A5, regu-
d-c output of El regu-
indicate same as
Part
lated power supply.
later amplifier 1A1,
E1 VOLTS setting
11
Set E1 VOLTS (5-90) to
gearcase motor 1A3,
5 percent.
each position.
switch 1AT2 or 1AT4,
variable resistor 1R3,
or Field Tester.
2
Multimeter shall
E1 VOLTS (5-90) to 5.
Part
indicate same as
Isolate trouble by sub-
III
E1 VOLTS setting
Set E1 VOLTS (1-10) to
stituting regulator
5 percent.
each position.
supply 1A6 for 1A5,
regulator amplifier 1A2
for 1A1, and gearcase
2
Multimeter shall
El VOLTS (0-10) to 0.
motor 1A4 for 1A3.
indicate 6.00
Part
0.30 volts.
IV
E1 vernier to 500.
Perform Field Tester
d-c continuity check in
accordance with para-
Multimeter shall
2
E1 vernier to 1000.
indicate 7.00
Part
V
0.35 volts.
3
E2 Voltage Range Test
Replace defective regu-
Same as step 2
Same as step 2
El NORM.-REV. to OFF.
later supply 1A6, regu-
except substitute
except substitute
lator amplifier 1A2,
E2 for all ref-
E2 for all ref-
Repeat step 2 substituting
gearcase motor 1A4,
erences to E1.
erences to E1.
E2 for all references to
switch 1AT3 or 1AT5,
E1.
variable resistor 1R4,
or Field Tester.
Isolate trouble by sub-
stituting regulator
supply 1A5 for 1A6,
regulator amplifier 1A1
for 1A2, and gearcase
motor 1A3 for 1A4.
Perform Field Tester
d-c continuity check in
accordance with para-
4
E1- E2 Load Regulation
Test
Multimer shall
Load regulation of
Replace defective regu-
S2 to E1/E2.
lator amplifier 1A1 or 1A2
indicate 50
E1 and E2 regu-
E1 NORM.-REV. to E1
or gearcase motor 1A3 or
millivolts or
lated power supplies.
NORM.
1A4.
less in each
E1 NORM.-REV. to E1
Isolate trouble by
controls to 90-9-500.
changing position of regu-
Note
lator amplifiers. If re-
Adjust E2 vernier until
Disregard mo-
multimeter indicates
sults are the same,
mentary de-
o volt.
change position of gear-
flection exceed-
case motors.
ing 50 millivolts.
S3 to E1, then to E2.
7-8B
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