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4.4. Power-on Self Test
(
Boot Check
)
4.4.1. Outline of POST
Note: If error occurs, nothing is displayed. (No display of OK, etc.)
4.4.2. Error Diagnosis by Checking Beep Signal Sound
The beep sound is as follows:
(2-1-2)
(Length of bar shows length of sound)
Table of errors classified by beep sounds
(Note) A beep sound is also issued in case of other I/O trouble.
The set has a boot check function called POST (Power-On Self Test) in it. The condition of the main body is disgnosed
by checking beep sound or error code.
Start ……………. Test begins automatically when power switch is set to ON.
Nomal finish …… After memory checking, a beep sound is issued once and the set is placed into automatic stop.
1-4-2
CMOS error
Timer error
1-4-4
1-3-1
1-2-4
Diagnosis
Main board
Beep signal sound
1-2-2
1-2-3
1-3-3
1-3-4
1-1-3
1-2-1
1-4-1
4-1-4
4-2-1
Error message
DMA Controller error
DMA Controller error
DMA Slave error
DMA Master error
Keyboard Controller error
Memory error
Refresh error
Interrupt Controller (Master) error
Interrupt Controller (Slave) error
PCI error
PCI error
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