Compal JHT01 Service Manual page 132

JHT01 Service Manual
If the diagnostics program cannot detect an error, the problem may be intermittent.
The test program should be executed several times to isolate the problem. When a
problem has been located, perform the appropriate troubleshooting procedures as
follows:
• If an error is detected by the main battery test, perform the Power Supply
Troubleshooting procedures in Section 6-2.
• If an error is detected by the display test, perform the Display
Troubleshooting procedures in Section 6-3.
• If an error is detected by the keyboard test, perform the Keyboard
Troubleshooting procedures in Section 6-4.
• If an error is detected when using an external USB device, perform the
External USB Devices Troubleshooting procedures in Section 6-5.
• If an error is detected when using the CRT connection, perform the CRT
Failure Troubleshooting procedures in Section 6-6.
• If an error is detected when using the HDMI connection, perform the HDMI
Failure Troubleshooting procedures in Section 6-7.
• If an error is detected when using the touch pad, perform the Touch Pad
Troubleshooting procedures in Section 6-8.
• If an error is detected when using the speakers, perform the Speaker
Troubleshooting procedures in Section 6-9.
• If an error is detected when using the CD/DVD drive, perform the CD-
ROM/DVD Drive Troubleshooting procedures in Section 6-10.
• If an error is detected when using the modem, perform the Modem
Troubleshooting procedures in Section 6-11.
• If an error is detected when using the Express card unit, perform the Express
card Troubleshooting procedures in Section 6-12.
• If an error is detected when using the Wireless LAN unit, perform the
Wireless LAN Troubleshooting procedures in Section 6-13.
6-4