IBM 07N2229, 55P5776, T221, 07N2230, 13M3200, 55P5728 manual Troubleshooting, Problem Cause and action

P/N: 55P5776

4. Troubleshooting

This chapter explains what to do if a problem occurs while you are using the monitor.

Only problems related to the converter box are covered here. Refer also to your monitor manual for troubleshooting information.

Table 1 Problems and Actions

Problem	Cause and action
Blank screen (LED lamp on the	Cause 1: No power to the converter box.
monitor is steady amber or	Action 1: Power on the monitor and make sure that the monitor
blinking amber.)	power lamp is steady amber or blinking amber. Then look at the
	power lamp on the converter box (next to the connector for the
	converter signal cable (07N2229)).
	If the lamp did not come on, the converter box has no power
	supply. Re-connect the cable between converter box and monitor,
	referring to the instructions in Chapter 2 for installing the
	converter box. Be sure to use the cable supplied with the
	converter box.
	If the lamp is green, the converter box is properly powered on. A
	green light with a blank screen means that the digital signal is
	disconnected somewhere. Check all the digital signal cable
	connections, referring to the instructions in Chapter 2 for
	installing the converter box.
	Cause 2: The monitor's EDID setting is incorrect.
	Action 2: Set the correct value for your graphics card, referring
	to the T221 Flat-Panel Monitor Users Guide.
	Cause 3: The converter box is connected only to the Connector-B
	of the monitor.
	Action 3: Connect the converter box to at least the Connector-A
	of the monitor, referring to the instructions in Chapter 2.
Instead of one large screen, two	Cause 1: No converter box in use.
identical side-by-side screens	Action 1: Use a converter box.

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