Planar PL1520M User Manual download pdf (Page 30)

TECHNICAL SUPPORT (FAQ) (cont.)

CLOCK (pixel frequency) 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.

FOCUS adjusts the phase of the pixel clock signal. With a wrong phase

adjustment the picture has horizontal disturbances in light picture.

For FOCUS and CLOCK adjustment use “dot-pattern” or win 95/98 shut-down

mode pattern.

ERROR MESSAGE & POSSIBLE SOLUTION

NO SIGNAL：

1. Check that the signal cables are proper connected , If the connector is

loose, tighten the connector’s screws.

2. Check the signal-cable’s connection pins for damage.

UNSUPPORTED:

Your computer resolution is out of VESA-SPEC

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Planar PL1520M User Manual Page 30