HP 4145A - Page 44

Model 4145A
SECTION III
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5
The CRT is sectioned into five areas, as shown in
the figure. Description for each area is as follows :
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1
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2
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3
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4
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5
Page Display Area :
The instrument’s various pages are displayed in
this area. When the PLOT key is pressed, only
this area is output to the plotter.
Command Display Area :
The SAVE, GET, PLOT, PRINT, PURGE and
REPACK commands are displayed in this area.
Keyboard Input Line :
All keyboard (front panel) entries are displayed
in this area. Up to 60 characters can be
entered but only 27 can be displayed. To edit
the displayed characters, use the BACK,
FORWARD, DELETE and INSERT keys. When
the RECALL key is pressed, the previous entry
is re-displayed.
System Message Line :
Displays instructions, error messages, and error
codes. When the instrument is turned on,
instrument status is displayed.
Softkey Prompt Display Area :
Displays Softkey Prompts (SKP).
Note
@ , 0, and @ are erased by pressing
the CLEAR key.
Figure 3-5. Useable Display Area.
CRT intensity and focus adjustment. (Requires a
sm.all flat-tip screwdriver.)
(1) Turn on the 4145A. The MENU page will be
displayed on the CRT.
(2) Press the EXTN softkey and the DIAG softkey.
(3) Press the GDU TEST softkey. Display will .be
as shown in the figure.
(4) Adjust INTENSITY @ until all three lines
(each line has a different intensity) are visible.
(0)
(5) Adjust FOCUS @ until the corners of the
displayed trace are sharp.
(6) Press the MENU key.
Figure 3-6. Operator Adjustment.
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