Troubleshooting; Repackaging Instructions - Tektronix ADA400A Instruction Manual

Maintenance

Troubleshooting

Table 24: Electrical Faults
Symptom
No power
No output signal on connector end of cable
assembly or output too high or low
Intermittent or difficult positioning
No signal output to cable assembly —
interface power is present and fuses are
not blown

Repackaging Instructions

58
Table 24 lists symptoms of electrical faults, possible causes, and corrective
actions.
Possible Cause
Damage to TEKPROBE interface connec-
tions. Check interface pins and cable
assembly wires for damage.
Blown input fuse
Damage to output cable
Defective position controls
Faulty module
If the original packaging is unfit for use or not available, use the following
packaging guidelines:
1. Use a corrugated cardboard shipping carton having inside dimensions at least
one inch greater than the probe dimensions. The box should have a carton
test strength of at least 200 pounds.
2. Put the probe into a plastic bag or wrap to protect it from dampness.
3. Place the probe into the box and stabilize it with light packing material.
4. Seal the carton with shipping tape.
Corrective Action(s)
Replace interface pin(s)
Replace or repair cable assembly
Check and replace fuse(s)
Repair or replace cable assembly
Replace position control(s)
Send unit to service center for exchange or
replacement.
ADA400A Differential Preamplifier