Agilent 35670A

Internal Test Descriptions

 

Power-on Test Description

Power-on Test Messages

The ‘’Power-on Test Messages’’ table provides additional information for interpreting the power-on test LEDs. Using the ‘’Binary to Hexadecimal’’ table, translate the power-on test LEDs to their equivalent hexadecimal code (see ‘’To troubleshoot power-up failures’’ on page 4-15 for details on decoding the power-on test LEDs to their binary code). The ‘’Power-on Test Messages’’ table describes the power-on subtests in the order they are run. The table also shows the relationship between a failing power-on subtest and the assemblies or sub-blocks.

False error codes can be caused by shorts on the buses, reset line, or interrupt line. If an error code is caused by the last bus connected, it is probably the source of the failure.

Binary to Hexadecimal

Binary

 

1 = LED on

Hexadecimal

0 = LED off

 

 

 

 

 

0000

0

 

 

0001

1

 

 

0010

2

 

 

0011

3

 

 

0100

4

 

 

0101

5

 

 

0110

6

 

 

0111

7

 

 

1000

8

 

 

1001

9

 

 

1010

A

 

 

1011

B

 

 

1100

C

 

 

1101

D

 

 

1110

E

 

 

1111

F

10-3

Page 385
Image 385
Agilent Technologies 35670-90066 manual Power-on Test Messages, Binary to Hexadecimal