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Make sure that connecting cables, connectors and AC adapter are not loose or disconnected prior to testing.
No.
Result
1 Key top cannot be
pressed.
Key top does not spring
back after pressing.
1-1
Keyboard is broken.
Keyboard
YES Keyboard
NO
Main PCB
YES Go to No.3-2
NO
Operating
mistake
YES Go to No.3-3
NO
Software setting
YES Keyboard
NO
Main PCB
IC14
YES Mouse
NO
Main PCB
IC14
YES Touch Pad
NO
Go to No.5-2
YES Touch Pad FPC
NO
Main PCB
IC14
YES Go to No.7
NO
Keyboard was not
connected
properly
YES Keyboard
NO
Main PCB
IC14
6 Keyboard failure
7 Keyboard interface failure
None of the keys function.
Certain keys do not
function.
2
Input character is
displayed as garbage.
3
4 Mouse does not function.
Inputs from the mouse
are not accepted properly.
5 Touch pad not function.
Input from the track ball
are not accepted properly.
Replace the keyboard.
Does operation return to
normal?
7-1
5-1
Replace the touch pad.
Does operation return to
normal?
5-2
Replace the touch pad FPC.
Does operation return to
normal?
3-3
Replace the keyboard and
see if inputting from the
keyboard functions normally?
3-1
Replace the keyboard and
see if inputting from the
keyboard function normally?
9
.4 KEYBOARD
3-2
Is the keyboard setting in the
operating system correct?
2-1
Does the screen mode
correspond to the key entry
mode?
Source of
problem
Component
Troubleshooting
procedures
Symptom
No.
Replace the mouse.
Does operation return to
normal?
4-1
Is the keyboard properly
connected?
6-1
18
Summary of Contents for Toughbook CF-73 Series
Page 2: ...2 1 ...
Page 4: ...2 3 ...
Page 5: ...2 4 ...
Page 7: ...1 Specfication 4 ...
Page 8: ......
Page 11: ...3 Block Diagram System Confugration Diagram 8 ...
Page 12: ...4 9 ...
Page 14: ...6 11 ...
Page 56: ...1 2 3 4 5 6 7 8 9 10 11 A B C D E F G H I J CF 73E3 Printed Circuit Board Main PCB Top View ...
Page 57: ...1 2 3 4 5 6 7 8 9 10 11 A B C D E F G H I J Main PCB Bottom View ...
Page 58: ...1 2 3 4 5 6 7 8 9 10 11 A B C D E F G H I J VGA PCB Top View VGA PCB Bottom View ...
Page 59: ...Rear PCB Top View Rear PCB Bottom View 1 2 3 4 5 6 7 8 9 10 11 A B C D E F G H I J ...