Dc Voltage

TB 9-4920-362-35

8. Dc Voltage

a. Performance Check

(1) Set AC POWER and DC POWER switches to OFF.

(2) Connect digital voltmeter (A4) to connector J466R pin 1 (+) and pin 2 (-), using

two leads (B6).

(3) Set AC POWER, DC POWER, and TRIM switches to ON. Digital voltmeter will

indicate between 27.5 and 28.5 V dc.

(4) Set DC POWER and TRIM switches to OFF.

(5) Disconnect leads from J466R and connect to J468R pin 1 (+) and pin 2 (-).

(6) Set DC POWER switch to ON. Digital voltmeter will indicate between 27.5 and

28.5 V dc.

(7) Set DC POWER switch to OFF.

(8) Disconnect leads from J468R and connect to J469R pin 1 (+) and pin 2.

(9) Repeat (6) and (7) above.

(10) Disconnect digital voltmeter from equipment setup.

(11) Set AC POWER switch to OFF.

(12) Connect digital voltmeter positive side to +15VDC and negative side to SIG

GRD (front panel), using adapters and leads (B1, B2, B3, and B4).

(13) Set AC POWER switch to ON. Digital voltmeter will indicate between 14.5 and

15.5 V dc.

(14) Set AC POWER switch to OFF.

(15) Disconnect adapter and lead from +15VDC and connect to -15VDC.

(16) Set AC POWER switch to ON. Digital voltmeter will indicate between -14.5 and

-15.5 V dc.

(17) Set AC POWER switch to OFF.

(18) Connect cable WI (supplied with TI) to connector J3 (rear of TI).