Chattanooga SENIOR SOLUTIONS, Service Manual

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38
Senior Solutions™ Therapy System
5 TROUBLESHOOTING
5.11 MICROCURRENT MODE TEST
Set up System per 5.6 parts A and B prior to
performing test.
Place ESTI-2 Load Switch in the 10 K Micro position
only for the Microcurrent Mode Tests.
See Figure
5.10.
A. Microcurrent Mode Test Procedures.
Set Scope; Time- 250 μS, Channel- 5.0 V,
and Trigger- DC.
Press Electrotherapy button.
Press Microcurrent button and press Edit
button.
Press Frequency button.
Press the Up Arrow button until 1000.0 Hz
is displayed.
Press the Accept and Return Arrow.
NOTE:
1000.0 Hz should be displayed within the
Frequency icon. If not, repeat
steps 4
through 6.
Press “Polarity” until “Alternating” appears
within the Polarity icon.
NOTE:
The Frequency value will continue to
ramp and rotate due to Alternating
Polarity being selected. This is normal.
Rotate Therapy Intensity Control until
1000 is displayed.
Press START.
Compare waveform on scope to
Figure
5.11 and Figure 5.11A.
NOTE:
The output will alternate between positive
and negative on the scope.
Press STOP button and then press Home
button.
Select the next channel to be tested by
pressing the Select Channel button until
the desired channel is selected. Repeat
steps 2 through 11 for each channel.
B. MicroCurrent Mode Test Results
Waveform is the same between scope and
Figure 5.11 and Figure 5.11A.
Unit passed test.
No waveform or considerably different
waveform.
Unit failed test. Replace appropriate Stim
Board.
1.
2.
3.
4.
5.
6.
7.
8.
9.
10.
11.
12.
1.
2.
FIGURE 5.11
PROPER POSITIVE + “MICROCURRENT” WAVEFORM
SPEC: 10 V PEAK TO PEAK ±10%
FIGURE 5.11A
PROPER NEGATIVE  “MICROCURRENT” WAVEFORM
SPEC: 10 V PEAK TO PEAK ±10%
FIGURE 5.10
LOAD SWITCH
TO 10K MICRO