Panasonic JS-925WS-010 Service Manual page 150

"OS not Found" or "Remove disks or other media..."
Start
Swap HDD
Boot normal?
Reformat and reinstall
OS and application to
original HDD
Boot normal?
HDD's data was
broken
This is not including cable connection checks. Please check cable connections as well.
Touch Screen does not work
Start
How about Test by Utility Program?
OK
Retry Calibration
This is not including cable connection checks. Please check cable connections as well.
No
Main PCB Failure
Yes
Replace Main PCB
No
Yes
Swap HDD
Reinstall OS and
application
Boot normal?
Original HDD Failure
NG
Swap Touch Screen
How about Test by Utility Program?
OK
Original Touch Screen
Failure
No
Main PCB Failure
Yes
Replace Main PCB
NG
Swap Touch Screen
Control PCB
How about Test by Utility Program?
OK
Original Touch Screen
Control PCB failure
178
NG
Swap TP PCB in
Display Unit
How about Test by Utility Program?
NG
Main PCB failure
OK
Original TP PCB
Replace Main PCB
failure