Compaq P1220 Wartungshandbuch PDF herunterladen (Seite 105)

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2.5 Inspections (In normal mode)

2.5.1 Electrical performance

Inspect the electrical performance by setting contrast to MAX and bright to center (press the (-)

(+) ADJUST buttons simultaneously).

2.5.1.1 Withstand voltage

There must be no abnormality when 1500VAC is applied for two seconds between both ends of

the AC input terminal and chassis, and between the DG coil terminal and chassis.

2.5.1.2 Grounding conductivity check

Check that the resistance value is 100mΩ or less when 25A is passed between the AC input

terminal grounding GND and chassis GND.

2.5.1.3 Degaussing coil operation

Confirm that when OSD DEGAUSS is executed, the picture vibrates and then stops.

2.5.1.4 POWER SAVE function operation (Set the AC power input to 230V)

Use the full white pattern without R, G, B signals.

Select POWER-SAVE from the OSD, and set the POWER-SAVE function ON.

(1) POWER SAVE ON

(a)Confirm that when SYNC (H&V) is removed, the system waits for approx. 5 seconds,

displays POWER SAVE for approx. three seconds, and then the picture dark ens.

Also confirm that the power LED changes to orange and the power consumption is as

follows.

(b)Confirm that when SYNC is input again, the high voltage is recovered, and the picture

appears in approx. five seconds.

Adjustment item

Inspections

Adjustment mode/set

Normal mode

Imput signal/pattern

Status

indicator

Confirmation timing

Timing No. 12 (106.25kHz / 85Hz, 1600x1200)

Power consumption 3W or less

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Compaq P1220 Wartungshandbuch Seite 105