Failing area intermittent isolation procedures

This procedure helps you determine how to resolve intermittent problems when you do not have a system reference code (SRC) or cannot determine the symptom.

About this task

Use this table only if you do not have a system reference code (SRC), or cannot find your symptom in Intermittent symptoms.

Procedure

  1. Perform all of the steps in General intermittent problem checklist for all failing areas.
    Then, continue with the next step.
  2. Refer to the table below, and perform the following:
    1. Find the specific area of failure under Failing area.
    2. Look down the column of the area of failure until you find an X.
    3. Look across to the Isolation procedure column and perform the procedure indicated.
    4. If the isolation procedure does not correct the intermittent problem, continue down the column of the area of failure until you have performed all of the procedures shown for the failing area.
  3. Although an isolation procedure may correct the intermittent problem, use your best judgment to determine if you should perform the remainder of the procedures shown for the failing area.

Results

Table 1. Failing area intermittent isolation procedures
Failing area Isolation procedure to perform:

Power

Work station I/O processor

Disk unit adapter

Comm-unication

Processor bus

Tape optical

Perform all steps in:

X X X X X X General intermittent problem checklist
X X     X  

INTIP05

  X X X X X

INTIP07

X          

INTIP09

X          

INTIP14

    X      

INTIP16

X X X X X X

INTIP18

  X X X X X

INTIP20