General troubleshooting
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Document no. M1137263-04
6 General troubleshooting
Figure 28 S/5 AM, CCM general troubleshooting flowchart
Monitor not functioning
Connect and check
Disconnect and reconnect the
pow er cord.
Connect pow er cord and
interconnecting cables
Remov e all modules and tur n
pow er on
The problem w as caused by
loosen unit(s)
Mains
pow er cord connected?
Possible intrconnecting
cables connected?
No
No
Yes
Yes
No
No
Stby-led lit?
Start-up texts
appear on
screen?
No
Clock etc. data
appears on the
screen?
Plug in a module
On/Stby sw itch "ON"?
Display connected and
pow ered? Keyboard
connected?
Monitor starts
functioning?
Monitor starts
functioning?
The pow er supply unit w as shut
dow n by instant over voltage in the
main s.
The problem w as caused by
loosen pow er cord
Yes
Module data
appears on the
screen?
Another
moudle w orks in
same place?
Monitor starts
functioning
No
Yes
Faulty module.
See troubleshooting in module slot.
Pick up the next module.
Faulty Module Frame or Central Unit.
See troubeshooting in Frame slot.
Faulty Central Unit.
See troubleshooting in Frame slot.
Yes
No
Yes
Keyboard trouble. See troubleshooting in
Command Bar s s lot.
Yes
Yes
Yes
Yes
No
No
F-CU5_General troubleshooting.vsd
No
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