Toshiba Infinia 7130 Series Maintenance Manual page 107

Procedure 2
The purpose of this procedure is to determine if the keyboard is defective. To perform this
procedure, perform the following Check.
Check (A) Replace the keyboard with a substitute keyboard (refer to section 4.13.).
(B) Test to determine if the problem still exists.
If the problem still exists, perform Procedure 5. If the problem no longer exists,
perform Procedure 4.
Procedure 3
The purpose of this procedure is to determine if the keyboard operates properly. To perform
this procedure, begin with Check 1 and continue as instructed.
Check 1 Test the keyboard's operation by pressing (typing) each character key on the
keyboard.
If the characters display on the screen as typed, perform Check 2. If the
characters do not display on the screen as typed, perform Procedure 4.
Check 2 Determine if the original problem still exists.
If the original problem still exists, perform the Problem Definition Process. If the
original problem no longer exists, perform the No Trouble Found Process.
Procedure 4
The purpose of this procedure is to determine if the new Infinia™ keyboard operates properly.
To perform this procedure, perform the following Check.
Check (A) Replace the defective keyboard with a new Infinia™ keyboard (refer to section
4.13.). (B) Test to determine if the problem still exists.
If the problem still exists, perform Procedure 5. If the problem no longer exists,
perform the Repair Completion Process.
Procedure 5
The purpose of this procedure is to determine if a defective system board is causing the
problem. To perform this procedure, perform the following Check.
Check (A) Replace the system board (refer to section 4.9.). (B) Test to determine if the
original problem still exists.
If the original problem still exists, perform the Problem Definition Process. If the
original problem no longer exists, perform the Repair Completion Process.
Mouse Troubleshooting Process
This section describes how to determine if the Infinia ™ mouse operates properly. To perform
this process, begin with Procedure 1 and perform the remaining procedures as instructed. The
procedures described in this section include:
Procedure 1
Infinia™ 7130, 7160, and 7200 Maintenance Manual ---------------------------------------3-100
Keyboard Substitution Check
Keyboard Operation Che ck
Keyboard Replacement Check
System Board Replacement Check
Mouse Cable/Connector Check