System Control Panel Indicators, Switches, And Keys; System Check Indicators; System Check Recovery; Power And Thermal Check Recovery - IBM System/370 145 Operating Procedures Manual

SYSTEM CONTROL PANEL INDICATORS, SWITCHES, and KEYS
SYSTEM CHECK INDICATORS
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STOR STOR
CLOCK DIAGN M REG BYTE CTRL STOR SEL
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II PARITY CHECK
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SYSTEM CHECKS
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~~~ II CY~LE ~uAD~~~~ATE
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000000080000000000
SYSTEM CHECK RECOVERY
If a system check is indicated, re-IMPL and then re-IPL.
If the error recurs, see "Handling Abnormal Situations--
Introductory Flowchart," page 84.
POWER and THERMAL CHECK RECOVERY
When a power supply failure or overtemperature condition
occurs during a system operation, a power-off sequence oc-
curs. The POWER check indicator on alone indicates a
8
power supply failure. The THERM indicator on along
with the POWER check indicator indicates an overtem-
perature condition.
1. Press CHECK RESET key (resets the indication and
allows the POWER ON key to be operative).
2. Press POWE R ON key.
If the condition causing the failure was temporary, power
will come up normally. If power cannot be restored, see
"Handling Abnormal Situations--Introductory Flowchart,"
page 84.