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A3 Front Panel Assembly
The front panel assembly is made up of a liquid crystal display (LCD), a
keypad and, depending on the power meter option, a power reference cable
assembly and a sensor cable assembly(s).
There are two inputs to the front panel assembly:
•
the flex circuit from connector A2J4 of the processor assembly
which controls the keypad.
•
the ribbon cable from A2J3 of the processor assembly which
controls the LCD display.
The power meter self tests contain display tests. These are accessed by
System
pressing
,
More
Inputs
.
Display
Agilent E4418B/E4419B Service Guide
,
,
Service Self Test Individual
Theory of Operation
A3 Front Panel Assembly
,
,
4-7
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