Crt Section - Philips PM3320 Operating Manual

4.2.4, CRT section
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Figure 4.7 Front panel view.
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POWER ON/OFF switch
After switching on the instrument, first an automatic power-up test is
started (see also section 4.1).
The POWER ON LED indicates when the instrumentis switched-on,
Continuously-variable control of the graticule illumination.
Screwdriver control for aligning the trace in parallel with the
horizontal graticule lines.
Continuously-variable control of the trace brilliance on the C.R.T.
screen.
Screwdriver control for the focussing of the C.R.T. electron beam
{including the C.R.T. text).
Continuously-variable control of the brilliance of the C.R.T. text
{control settings, cursors, softkey functions and messages).