Service manual

Example: Closed
Channel Resistance
Test
This example performs a Closed Channel Resistance Test to measure
Channels 0 through 31 relay contact resistances. If the relay contact
resistance for a channel is >2.0
Ω the program prints a message indicating
which channel has failed the test. Use this list in Chapter 4 when
troubleshooting a failing relay.
NOTE
This test assumes that the module is configured without protection
varistors, fuses, or resistors and that jumpers JM1 through JM8 are
installed on the Agilent E1463A Component Assembly (factory setting).
Refer to the Agilent E1463A User’s Manual for details and locations of
user installed protection circuits
10! RE-SAVE "CLOS_TEST"
20 ASSIGN @Dmm TO 722
30 ASSIGN @Sw TO 70915
40 DISP CHR$(129)
50 DIM Result(1,31),Path$(1)[2]
60 DATA NO,NC
70 READ Path$(*)
80 Cc$="01" ! Card number
90 Ph$="0" ! Place holder
100 !
110 !Start test
120 !
130 CLEAR SCREEN
140 PRINT "Install Component Assembly and Test Fixture "
150 PRINT
160 PRINT " 1. Turn Mainframe and Agilent 3458A DMM power OFF"
170 PRINT " 2. Connect GPIB Cable between mainframe and DMM"
180 PRINT " 3. Install E1463A Component Assembly into Mainframe"
190 PRINT " 4. Attach Test Fixture to Component Assembly"
200 PRINT " 5. Turn Mainframe and DMM power ON "
210 PRINT " 5. Press Continue when ready to begin testing "
220 PAUSE
230 CLEAR SCREEN
240 !
250 ! Start the measurements
260 !
270 FOR J = 0 TO 1
280 OUTPUT @Dmm;"PRESET NORM;FUNC OHMF"
(Continued on Next Page)
24 Verification Tests Chapter 2