Maintenance Manual (960-948)
2-12
Troubleshooting Procedures
If an error is detected during these tests, go to Procedure 3.
2.4.3 Procedure 3 Replacement Check
System board may be faulty. Disassemble the computer following the steps
described in Chapter 4,
and replace system
board with a new one.
2.5 USB Troubleshooting
To check if the USB is malfunctioning or not, follow the troubleshooting
procedures below as instructed.
2.5.1 Procedure 1 The test program reading check for maintenance by a
USB unit
2.5.2 Procedure 2 Connector Check and Replacement Check
2.5.1 Procedure 1 The test program reading check for maintenance
by a USB unit
USB connector and the test program for maintenance is read. If the test
program cannot be executedon the computer, go to Procedure 2.
2.5.2 Procedure 2 Connector Check and Replacement Check
USB unit is connected to USB port System board. The connection of the
cable and board may be defective. Otherwise, they may be faulty.
Disassemble the computer following the steps described in Chapter 4,
and perform the following checks.
Figure 2-4 Connection Check
4
LCD Panel Test
1
2
3
4
LCD Panel Test
All dot on/off for LCD
H - pattern display
LCD brightness
5
Battery Charge Test
6
Fan Test
7
Acceleration Sensor
Test
8
EXIT to TOP Menu
Test
No
Test Name
Sub Test No
Sub Test Name
