Agilent Technologies Ininiium 9000 Dokumentacja Pobierz pdf (Strona 92)

Chapter 5: Troubleshooting

How to Use the Power Fault LEDs

The previous page showed where you should look through the rear fan slots to see the upper right hand

corner of the acquisition board. There are a series of 13 LEDs. They are separated into three sections of

four LEDs each and then the Over Temperature LED is by itself at the bottom (as shown in Figure 5-5).

Figure 5-5

By looking at the pattern of LEDs illuminated after a power failure, you can determine the cause of the

fault. However, in most cases, only assembly level repair is required which greatly simplfies decoding

these LEDs. An in-depth discussion of this LEDs will first be presented so you understand how they

operate and then the assembly level repair procedures will be discussed.

The LEDs must be interpreted in groups of four (as shown in the layout above) with the upper two LEDs

1 2 ... 87 88 89 90 91 92 93 94 95 96 97 ... 165 166

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Agilent Technologies Ininiium 9000 Dokumentacja Strona 92