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Step 11
(from Step 10)
An over temperature problem can be caused by an environmental problem (see
Specifications in Chapter 1) or blocked air ducts. Check each of these items.
Did you find the problem?
NO
YES
Step 12
(from Steps 10 and 11)
Is bit 1 a zero?
NO
YES
3-1520-8
Service Guide
Go to Step 12.
Repair the problem. Go to "Map 0410: Repair Checkout" in the Diagnostic
Information For Micro Channel Bus Systems .
If the SRN is 409-Axy, replace the main power supply. If the SRN is
409-Bxy, replace the backup power supply.
If the symptom did not change, reinstall the original power supply. Call your
service support person for assistance.
Go to "Map 0410: Repair Checkout" in the Diagnostic Information For Micro
Channel Bus Systems .
Go to "MAP 1540: CPU Enclosure - Minimum Configuration" on page
3-1540-1.
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