Side Key Switch (S400,S401) - Siemens CFX 65 Service Repair Documentation

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5. Side key switch (S400,S401)

Fault symptoms
Customer
No function while pressing
Pressing feeling is bad
Exchange
side key switch
Service Repair Documentation
Level 2.5 - CFX65
Side key switch
Watch for oxidation and
damaged side key switch
Check for dust inside the
side key switch
Check the status of the
not okay
Side key connector visually
Use the resistor test
function of a multimeter to
not okay
check connection between
the soldered contacts.
Must be ~ 0Ω when switch
is pressed
GRT
n/a
okay
okay
okay
13
not okay
SCRAP
not okay
Clean side key
switch
- check for twisted or
bent contacts
- check for dry joints
Level 2,5e repair
V1.0