Windows shut-down mode
CLOCK (pixel frequency)
PHASE and CLOCK
Controls the number of pixels scanned by one horizontal sweep. If
the frequency is not correct, the screen shows vertical stripes and
the picture has not correct width.
Adjusts the phase of the pixel clock signal. With a wrong phase
adjustment the picture has horizontal disturbances in light picture.
For PHASE and CLOCK adjustment use "dot-pattern" or
Win 95/98/2000/ME/XP shut-down mode pattern.