Diagnosis Procedure; Basic Procedures - Panasonic Toughbook CF-28 Service Manual

4. Diagnosis Procedure

4.1. Basic Procedure
The basic procedures for diagnosis, disassembly, and test of defective parts of a set to be repaired are summarized below. .or
details, refer to relevant pages in the Service Manual.
l l l l l .low Chart
DEFECTIVE PARTS
SORTING
REPAIR WORK
INSPECTION
OCCURRENCE OF
TROUBLE
Power On Self Test
POST NORMAL
FINISH
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.
DISASSEMBLY PROCEDURE
Replace defective parts.
SELF-DIAGNOSIS TEST
After repair, conduct a self-
diagnosis test and make sure that the
repaired set operates properly.
END OF
REPAIR WORK
4 - 1
Power sw is set to ON.
POST ERROR
OCCURRENCE
TEST OK
Automatic diagnosis takes
place when the power switch
is set to ON.
TEST FAILED