Power LED blinking timing chart
1. Subject
Information of LED Flashing timing chart.
2. Contents
When abnormality has occurred the unit, the protection circuit operates and reset to the stand by mode. At this time, the
defective block can be identified by number of blinking of the Power LED on the front panel of the unit.
Blinking times Name
PTCT
indication
Detect item Detect pin
2 POWER SOS 02 H09
POWER PCB
*PWR24V, PWR15V, PWR5V Low level detect
SUB CPU Pin No.40
(POWER_FAIL1)
4
PANEL12V
SOS
04 H09 *PANEL12V Low level detect
SUB CPU Pin No.51
(POWER_FAIL3)
10 DS_SOS 0A H09
DS PCB
*SLOT3.3V,SLOT5V.SLOT9V Low level detect
*SLOT3.3V,SLOT5V.SLOT9V High level detect
*FunctionBoard_SOS
SUB CPU Pin No.42
13
REGULATOR
SOS
0D H09
A PCB
*D3.3V,DDR1.8V,H3.3V,AS1.8V Low level detect
SUB CPU Pin No.41
(POWER_FAIL2)
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