Diagnosis procedure, Basic procedures, Power on self test – Panasonic CF-72 User Manual

Page 13

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4 - 1

4.

Diagnosis Procedure

4.1.

Basic Procedures

The basic procedures for diagnosis, disassembly, and test of defective parts of a set to be repaired are summarized below. For

details, refer to relevant pages in the Service Manual.

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l Flow Chart

Power On Self Test

OCCURRENCE OF
TROUBLE

Automatic diagnosis takes
place when the power switch
is set to ON.

Power sw is set to ON.

POST NORMAL
FINISH

POST ERROR
OCCURRENCE

DEFECTIVE PARTS
SORTING

SELF-DIAGNOSIS TEST (IF REQUIRED)
Conduct a self diagnosis test when
it is necessary for conduct
trouble diagnosis.

TROUBLESHOOTING
Defective parts are sorted by
referring to symptoms.

SELF-DIAGNOSIS TEST
After repair, conduct a self-
diagnosis test and make sure that the
repaired set operates properly.

DISASSEMBLY PROCEDURE
Replace defective parts.

REPAIR WORK

INSPECTION

TEST FAILED

TEST OK

END OF
REPAIR WORK

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