Compal JHL90 - Page 146

JHL90 Service Manual
If the diagnostics program cannot detect an error, the problem may be intermitten
The test program should be executed several times to isolate the problem. When
problem has been located, perform the appropriate troubleshooting procedures as
follows:
t.
a
ry test, perform the Power Supply
e Display
test, perform the Keyboard
B device, perform the
Dev res in Section 6-5.
on, perform the CRT
Failure Troubleshooting procedures in Section 6-6.
• If an error is detected when using the HDMI connection, perform the HDMI
the Touch Pad
Troubleshooting procedu
• det ing the speakers, perform the Speaker
ti n Se
• If an error is detected when using the CD-
ROM/DVD D bleshootin
• If an error is detected when using e Modem
ooti Se
• 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
Wireless LAN g p
• If an error is detected by the main batte
Troubleshooting procedures in Section 6-2.
• If an error is detected by the display test, perform th
Troubleshooting procedures in Section 6-3.
• If an error is detected by the keyboard
Troubleshooting procedures in Section 6-4.
• If an error is detected when using an external US
External USB ices Troubleshooting procedu
• If an error is detected when using the CRT connecti
Failure Troubleshooting procedures in Section 6-7.
• If an error is detected when using the touch pad, perform
res in Section 6-8.
If an error is
eshoo
ected when us
iTroubl ng procedures ction 6-9.
the CD/DVD drive, perform
rive Trou g procedures in Section 6-10.
the modem, perform th
Troublesh ng procedures in ction 6-11.
the Wireless LAN unit, perform the
rocedures in Section 6-13. Troubleshootin
6-4