Test Procedures.

TM 32-5811-018-14&P

Test Procedures.

6-10.

Use the troubleshooting procedures in table 6-1 for routine per-

formance testing as well as troubleshooting.

Section VI.

ADJUSTMENT PROCEDURES

6-11.

General.

This section provides adjustment procedures for the power supply

and OVP modules.

Adjustment Procedures.

6-12.

Application of input dc voltage without connecting

voltage sense lines to voltage to be sensed may

result in damage to the converter module.

Power Supp ly Voltage Adjustment Procedures.

(1)

Connect power supplies and digital voltmeter (dvm) to power

supply test set as shown in figure 6-2.

(2)

Press POWER ON pushbutton one time and ensure lighted

portion of pushbutton comes on.

Hold load switch on power supply test set in FULL LOAD posi-

(3)

tion, and set dvm to read dc volts.

(4)

Place test switch in position corresponding to converter

modules to be adjusted (see table 6-2).

(5)

Remove potentiometer cap and adjust potentiometer on con-

verter module for dvm reading within tolerance listed in

table 6-2 for specific test switch position.

Release load

switch and replace potentiometer cap when adjustment is

complete.

Rotate test switch to next position and repeat steps (3),

(6)

(4) and (5). Check voltages for all test switch positions,

adjust as necessary.

Press POWER ON pushbutton once and ensure lighted portion of

(7)

pushbutton goes off.

NOTE

Converter modules with complementary outputs (PS4

in PP-7293 and PP-7294) need not be adjusted twice;

however, complementary voltages must track to

within 150 mV.

6-21