High Voltage Pulsed Current Hvpc Mode Test - Chattanooga Group Vectra Genisys Service Manual

5 TROUBLESHOOTING
5.12 HIGH VOLTAGE PULSED CURRENT
HVPC MODE TEST
Set up Unit per 5.6 parts A and B prior to performing
tests.
A. High Voltage Pulsed Current (HVPC) Mode
Test Procedures
1. Set Scope; Time- 25 μS, Channel- 50 V, and
Trigger- DC.
2. Press Electrotherapy Button.
3. Press High Volt Button.
4. Rotate Therapy Intensity Control clockwise
until 250 Volts is displayed.
5. Press Start Button.
6. Compare waveform on scope to Figure
5.12.
7. Press Edit Button.
8. Press Polarity Button until Positive is
displayed in Polarity icon.
9. Compare waveform form on scope to
Figure 5.13.
10. Press Display Button until Peak Current is
displayed in the Display icon.
11. The numbers displayed for amplitude
must not exceed 1.5 Amps. See Figure
5.14.
12. Press "Stop".
B. High Voltage Pulsed Current (HVPC) Mode
Test Results
1. Waveforms on scope the same as Figures
5.12 and 5.13 and Amps do not
exceed 1.5.
Unit passed test.
2. No waveform or considerably different
waveforms.
Unit failed test. Replace appropriate Stim
Board.
3. Amps exceed 1.5.
Unit failed test. Replace appropriate Stim
Board.
Vectra Genisys®/Intelect Legend XT®/ Intelect® Vet Therapy Systems
PROPER NEGATIVE HIGH VOLT WAVEFORM
FIGURE 5.12
PROPER POSITIVE HIGH VOLT WAVEFORM
FIGURE 5.13
AMPS MUST NOT
EXCEED 1.5
FIGURE 5.14
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