Parts Return - Toshiba strata CT Installation & Maintenance Manual

Fault Finding
Five symbols are used in the flowcharts, which are identified in
The flowcharts are sequentially arranged to permit rapid fault localisation within the system.
All fault clearing must begin with the Fault Classification Flowchart, which is arranged in the
correct fault locating sequence.
H
Figure 8-13
C
CAUTION! When handling PCBs, do not:
Important!

Parts Return

1.
CAUTION!
8-2
Marking points of a
flowchart sequence.
Important notes affecting the
fault clearing procedure.
Question to be answered
YES or NO.
Progression TO or FROM another
flowchart location. Letters and
numbers denote the exact
entrance or exit points.
Statement of a required action.
Flowchart Symbols
Drop a PCB.
Stack one PCB on top of another.
Handle a PCB without discharging any static electricity from your person
by touching the grounded cabinet.
Touch the PCB contacts with your fingers.
If the fault is not cleared by substituting a PCB, reinstall the original PCB in
the KSU/cabinet before trying another PCB.
Pack the part in a suitable container (original box is highly recommended). Use anti-
static containers for all PCBs and feature cartridges. Use plastic bags for digital or
electronic telephones, KSU/cabinet, etc.
To avoid damage, never write on the part itself.
Figure 8-13.
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Strata CT I&M Manual October 2000