IEC 30 Series - Page 52

SECTION 5
Table 5-1. Troubleshooting Guide (Continued)
Symptom/Step Possible Cause
Remarks
24.
VARIABLE
PULSE
FAULTS
a. Output at +5v.
1.
2.
q57, Q60 shorted.
q59,
Q58 or CR61 open.
b. Output
at -5v.
1.
2.
q58,
Q59 shorted.
Q57,
Q60 or CR62 open.
5-12