IBM P275 Specifications, Self-diagnosis function, If the ! power indicator is green

Self-diagnosis function

This monitor is equipped with a self-diagnosis function. If there is a problem with your monitor or computer(s), the screen will go blank and the ! (power) indicator will either light up green or flash orange. If the ! (power) indicator is lit in orange, the computer is in power saving mode. Try pressing any key on the keyboard or moving the mouse.

!(power) indicator

x If the ! (power) indicator is green

1Disconnect any plugs from the video input connector 1 and 2, or turn off the connected computer(s).

2Press the ! (power) button twice to turn the monitor off and then on.

3Press the M button for 2 seconds before the monitor enters power saving mode.

If all four color bars appear (white, red, green, blue), the monitor is working properly. Reconnect the video input cables and check the condition of your computer(s).

If the color bars do not appear, there is a potential monitor failure. Inform your authorized technical support of the monitor’s condition.

xIf the ! (power) indicator is flashing orange

Press the ! (power) button twice to turn the monitor off and then on.

If the ! (power) indicator lights up green, the monitor is working properly.

If the ! (power) indicator is still flashing, there is a potential monitor failure. Count the number of seconds between orange flashes of the ! (power) indicator and inform your authorized technical support of the monitor’s condition. Be sure to note the model name and serial number of your monitor. Also note the make and model of your computer and graphic board.

Specifications

CRT	0.24 mm aperture grille pitch
	21 inches measured diagonally
	90-degree deflection
	Trinitron
Viewable image size	Approx. 403.8 ⋅ 302.2 mm (w/h)
	(16 ⋅ 12 inches)
	19.8" viewing image
Resolution
Maximum	Horizontal: 1920 dots
	Vertical: 1440 lines
Recommended	Horizontal: 1600 dots
	Vertical: 1200 lines
Input signal levels	Video signal
	Analog RGB: 0.700 Vp-p
	(positive), 75 Ω
	SYNC signal
	H/V separate or composite sync:
	TTL 2 kΩ, Polarity free
	Sync on Green: 0.3 Vp-p
	(negative)
Standard image area	4:3
	Approx. 388 ⋅ 291 mm (w/h)
	(15 3/8 ⋅ 11 1/2 inches)
	or
		US
	5:4
	Approx. 364 ⋅ 291 mm (w/h)
	(14 3/8 ⋅ 11 1/2 inches)
Deflection frequency*	Horizontal: 30 to 130 kHz
	Vertical: 48 to 170 Hz
AC input voltage/current	100 to 240 V, 50 – 60 Hz, 2.0 – 1.0 A
Power consumption	Approx. 135 W
Dimensions	Approx. 504.2 ⋅ 511 ⋅ 495.4 mm (w/
	h/d) (19 7/8 ⋅ 20 1/8 ⋅ 19 5/8 inches)
Mass	Approx. 31 kg (68 lb 5 oz)
Plug and Play	DDC2B/DDC2Bi, GTF (page 20)

*Recommended horizontal and vertical timing condition

•Horizontal sync width duty should be more than 4.8% of total horizontal time or 0.8 µs, whichever is larger.

•Horizontal blanking width should be more than 2.3 µsec.

•Vertical blanking width should be more than 450 µsec.

Design and specifications are subject to change without notice.

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