Acer AC 711 Manuale di servizio - Pagina 2

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1. DISPLAY ALIGNMENT

A. TIMING & DISPLAY SIZE

For all presetting mode shall be within the limitation:

H. WIDTH

V. HEIGHT

The external control range of the data area, shall be as follows;

Max. horizontal size

Max. vertical size

B. PICTURE POSITION

For all presetting mode shall be within the limitation:

H.PHASE

V.CENTER

C. LINEARITY

The linearity of an image displayed on the CRT must meet the following requirements, with reference to figure

4.05 for both X and Y and axis.

The measured value of linearity shall be less than 6%(p) or 8%(s) when calculated using all lattices and shall be

less than 5%(p) or 6%(s) when calculated using adjcent lattices.

D. ALIGNMENT PROCEDURE

Warm up the monitor for at least 30 minutes before adjustment.

Set the front of CRT to the east.

Turn all VR set to center position.

D-1.

H.V

Use front control key adjust the display size about 300mm, adjust VR801 Let the Plus of C824 is

28.14V in Timing 68kmode FULL WHITE PATTERN, it can be got a stable H.V.

310 ± 5mm

232 ± 3 mm

: full the screen

SCREEN CENTER ± 4 mm

SCREEN CENTER ± 3 mm

Xmax-Xmin

Xmax+Xmin

Where: Xmax,Xmin,be Calculated Same Line

Ymax,Ymin,be Calculated Same Row

Ymax-Ymin

Ymax+Ymin