Compaq P1220 Wartungshandbuch PDF herunterladen (Seite 95)

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2.4.7 Adjusting the Purity

(1) Input the check 4 timing (85Hz, 1600 x 1200) to confirm that the GREEN crosshatch is

displayed in reverse.

(2) Set the chamber adjustment magnetic field to the northern hemisphere magnetic field

(HORIZ. = 0mT, VERT. = +0.04mT).

(Degauss by handy-demagnetizer with monitor set degauss operation.)

(3) Set the monitor to the factory mode from the front, select CP P OFF, and press Input

Connector Select / OSD OFF button once.

With this, the calibration of the horizontal (tube axis) one way geomagnetism sensor will be

carried out by the MPU. ("H/V MAG CAL" is displayed.)

Adjustment item

Purity

Adjustment mode/set

Factory

Imput signal/pattern

Check 4 : 85Hz, 1600x1200

GREEN crosshatch reverse

Status

indicator

2.4.6.3 Adjustment of X-Pro (Timing No. A 30k/70Hz Full white)

(1) Select XPRO-CALIBRATE by button and press (+) button.

(When (+) button is pressed, microcomputer automatically sets the protector.)

(2) Confirm that OK is indicated on OSD.

2.4.6.4 Confirmation for operation of X-Pro (Timing No. 25 1800 x 1350 at 85Hz, Full white)

(1) Select XPRO-TEST 28 mode by button and press (+) button.

(2) Confirm that OK is indicated on OSD without entering power save state.

(3) Change to full white of timing No. A, select XPRO-TEST 31 mode by

button, and press

(+) button.

(4) Confirm that X-Pro operates and enters into the self-diagnosis mode (LED flacker: color

amber for a second, OFF a second, color amber for 4 seconds, OFF 1 second, and re-

frain).

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Compaq P1220 Wartungshandbuch Seite 95