Service manual

170 PRINT " 1. Turn mainframe, power supply, and DMM power OFF"
180 PRINT " 2. Connect GPIB cable between mainframe and DMM"
190 PRINT " 3. Install component assembly into mainframe"
200 PRINT " 4. Attach test fixture to component assembly"
210 PRINT " 5. Turn mainframe and DMM power ON"
220 PRINT " 6. Press Continue when ready to begin testing"
230 PAUSE
240 !
250 ! Start Test
260 !
270 OUTPUT @Mux;"*RST"
280 OUTPUT @Dmm;"PRESET NORM;FUNC DCV"
290 FOR I=0 TO 5
300 CLEAR SCREEN
310 PRINT " 1. Connect 100 kOhm resistor from DMM Input HI to DMM
Input LO"
320 PRINT " 2. Connect DMM Input HI lead to ";Path$(I,0)
330 PRINT " 3. Connect DMM Input LO lead to ";Path$(I,1)
340 PRINT " 4. Connect Power Supply ";Path$(I,2);" to ";Path$(I,3)
350 PRINT " 5. Turn ON power supply and set output for +10 Vdc"
360 DISP "Press Continue when connections are complete"
370 PAUSE
380 OUTPUT @Dmm;"TRIG SGL"
390 ENTER @Dmm;Result (I,0)
400 IF Result (I,0) > .01 THEN
410 PRINT "Direct path leakage out of tolerance";Result (I,0);" Volts"
420 END IF
430 ! Channel check
440 OUTPUT @Mux;"CLOS (@"&Cc$&"00)"
450 OUTPUT @Dmm;"TRIG SGL"
460 ENTER @Dmm;Result (I,1)
470 IF Result (I,1) > .01 THEN
480 PRINT "Channel path leakage out of tolerance";Result (I,1);" Volts"
490 END IF
500 OUTPUT @Mux;"*RST"
510 ! Tree check
520 OUTPUT @Mux;"SCAN:PORT ABUS"
530 OUTPUT @Mux;"CLOS (@"&Cc$&"00)"
540 OUTPUT @Dmm;"TRIG SGL"
550 ENTER @Dmm;Result (I,2)
560 IF Result(I,2) > .01 THEN
570 PRINT "Tree A path leakage out of tolerance";Result (I,2);" Volts"
2-20 Verification Tests