TB 11-6625-620-35-2
EL6625-620-35-2-TB-I
Figure 4-1. Printed circuit card assembly 1A2A15 (80047080), component locations.
NOTE
b. Adjustments. No adjustments can be made.
The meter reads from 0 to 49.2 percent
4-3. Final Procedure. a. Reenergize and disconnect
nominal.
all equipment and reinsert boards to proper places.
b. Reinstall coverplate and cover to Test In-
(15) Adjust R15 of card 1A2A15 to halve the error
strument.
between the 25 percent 49.2 percent indications.
C. In accordance with TM 38-750, annotate and af-
NOTE
fix DA Label 80 (US Army Calibration System).
Perform the following power supply check
When the Test Instrument cannot be adjusted within
only if the preceding performance checks or
tolerance, annotate and affix red tag, DA Form 2417
adjustments could not be obtained.
(Unserviceable or Limited Use).
4-2. Power Supply Check. a. Performance Check.
Table
4-2.
Power
Supply
Measurement
(1) Turn Test Instrument POWER switch to OFF
and disconnect cables.
indications (dc voltage)
Test instrument
(2) Remove the Test Instrument protective cover.
Maximum
Minimum
connector (jacks)
Making sure that nothing is touching any electrical
components reconnect cables.
+14.25 . . . . .
+ 15.75
+15V (J1) . . . . . . . . . . . . . . . . . . . . . . . .
(3) Set POWER switch on Test Instrument either
-14.25 . . . . . . .
-15.75
-15V (J3) . . . . . . . . . . . . . . . . . . . . . . . . .
to 115V ON or 230V ON.
+9.50 . . . . . .
+ 10.50
-10V (J4) . . . . . . . . . . . . . . . . . . . . . . . . .
(4) Using multimeter, measure the voltage in-
-114.00 . . . . . .
-126.00
-lmV (J5) . . . . . . . . . . . . . . . . . . . . . . . .
dications at Test Instrument jacks as shown in table
5
