IBM 7012 G Series, Руководство по обслуживанию

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3-1520-6
Service Guide
Step 9
(from Step 1 and 8)
The xy value in SRN 409-Axy is the hex value for the Power Status Register byte. Line 2 of
the operator panel display identifies the unit that contains the error. The bits in the Power
Status Register are defined as follows:
8 4 2 1 8 4 2 1 = Hex value of bits
7 6 5 4 3 2 1 0 = Bit numbering
Over / under voltage on +5 volts
Overload (over current) on +5 volts
Overload (over current) on +12, +3.3, or +3.6 volts
Over / under voltage on +12, +3.3, or +3.6 volts
Ignore
Ignore
First level over temperature detected by the power
supply
Second level over temperature detected by the
power supply
For example, 56 (0101 0110) represents bits 6, 4, 2, and 1. A zero indicates the active
state.
Is bit 6 or bit 7 a zero?
NO Go to Step 11.
YES Go to Step 10.