Philips HEARTSTART XLT Service Manual page 76

Operational Problems
Table 3-9 Operational Problems - Defibrillation and Synchronized Cardioversion (Continued)
Message or Symptom
Doesn't deliver correct energy into
Defibrillator Analyzer or delivers no
energy at all. (Should also get mes-
No shock delivered
sage -
failure
.)
Doesn't measure its own delivered
energy correctly.
Not synchronizing even though
ECG waveform OK on display.
Defib Meas
Fails Test in Diagnostic
Mode (other then symptoms above).
Table 3-10 Operational Problems - Pacing
Message or Symptom
Doesn't deliver correct current into
Pacer Tester or delivers no current
at all.
Doesn't measure its own delivered
current correctly.
Doesn't pace at correct rate.
Pacer hardware not installed.
sage even though Pacer is present.
Unit fails either the Shift System
Check or Extended Self Test, or
reports error code 90007.
3-24
Possible Causes
Control PCA failure.
Power PCA failure.
Defib
or
Power PCA failure.
Control PCA failure.
Control PCA failure.
Power PCA failure.
Control PCA failure.
Pacing
The following table covers problems that might arise while performing exter-
nal pacing.
Possible Causes
Control PCA failure.
Power PCA failure.
Power PCA failure.
Control PCA failure.
Control PCA failure.
Bad connections - Manual Keypad
mes-
flex circuits to Interface PCA.
Test sequence is interrupted.
Suggested solution
Replace Control PCA.
Replace Power PCA.
Replace Power PCA.
Replace Control PCA.
Replace Control PCA.
Replace Power PCA.
Replace Control PCA.
Suggested solution
Replace Control PCA.
Replace Power PCA.
Replace Power PCA.
Replace Control PCA.
Replace Control PCA.
Reconnect flex circuits properly.
See "Servicing Notes" on page 4-1.
Run the test again, making sure that
no one touches the unit during the
test.
Troubleshooting