M3500B/M5500B Service Manual
3
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9
Unit Unresponsive
3
Unit Unresponsive
Isolate the fault by following the steps in Table 3-1. Before replacing any
parts, check to see if the cables and flex circuits are properly connected. See
"Servicing Notes" on page 4-1.
Table 3-1 Unit Unresponsive
Test
Result
Possible Causes
Corrective Actions
1. Connect Power Module to
power source ONLY (AC
Mains or DC) and
observe indicators on
Power Module
(see Figure 3-3 on page
3-30).
"Power’ indicator turns
RED.
Power Source volt-
age low.
Check/correct source volt-
age.
Failure in Power
Module.
Replace Power Module.
’Power’ indicator turns
GREEN.
Proceed to step 2.
2. Connect Power Module to
unit.
"Power’ indicator turns
RED.
Short in unit’s 12 volt
wiring.
1. Check/replace Battery
PCA
2. Check/replace wiring to
Power PCA
Short on Power PCA.
Replace Power PCA.
Short on Control
PCA.
Replace Control PCA.
’Power’ indicator stays
GREEN.
Proceed to step 3.
3. Attempt to power up unit.
"Power’ indicator turns
RED.
Failure on Power
PCA.
Replace Power PCA.
Failure on Control
PCA.
Replace Control PCA.
’Power’ indicator stays
GREEN.
Proceed to step 4.
Summary of Contents for Heartstart XLT
Page 1: ...H E A R T S TA R T X LT S e r v i c e M a n u a l M 3 5 0 0 B M 5 5 0 0 B ...
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Page 3: ...Service Manual M3500B HeartStart XLT M5500B Heartstart 4000 Defibrillator Monitor ...
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Page 224: ...M3500 90900 Printed in USA February 2003 Second Edition M3500 90900 2 ...