AWA Troubleshooting
c. 80-100 AD/IO board damaged or faulty.
16. AWA reaches an arbitrary test voltage
for meg-ohm/DC HiPot/PI test and then
stops at that voltage
Example: Test requires 5600VDC, the AWA will ramp normally to 1800 volts, then
stops. The test times keeps running and the test will never conclude.
a. Blown or damaged U10 IC on the 80-100 AD/IO board
b. Blown or damaged 80-124 HVDC board
17. AWA reaches an arbitrary test voltage
for the surge test then stops.
a. Blown or damaged U10 IC on the 80-100 AD/IO board.
b. Blown or damaged 80-124 HVDC board.
18. AWA has a lot of "Spikes" seen on the
surge waveform, especially in the 50 micro-
seconds/div setting.
a. The problem may be the A/D converter or the FIFO chip on the 80-123 Fast A/D
board; these are devices U3 and U5 respectively. Replace them one at a time to
verify.
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