HP 9130K Service Manual page 57

5-22 Maintenance
TP7 (E7) INDEX
Volts/DIV: .1 V/DIV
Time/DIV: 1ms/DIV
TP8 (E9) TRACK 0
Volts/DIV: 2V/DIV
Time/DIV: 10ms/DIV
Alternate seek track 0 and track 1
Step rate 10ms