Cisco Systems CISCO7201 manual Symptom Possible Cause Possible Solution

Chapter 5 Troubleshooting Initial Startup Problems

Problem Solving Using a Subsystems Approach

Table 5-1	Troubleshooting the Power Subsystem (continued)
Symptom		Possible Cause	Possible Solution
System does not		DC internal power cables are not	Turn the router power switch to the
power on.		fully seated; from the power supply	standby position () and unplug the router
		to the system board, from the power	power cable. Open the cover and check
		supply to the power switch, and the	the power supply cable connections.
		power supply to the power	Reseat the cables if necessary. Replace
		connector.	the cover, plug in the power cable, and
			power on the router.
		Power source is faulty.	Turn the power source switch off, connect
			the power cable to another power source,
			if available, and turn the router power
			switch back on.
		Faulty power cable.	Turn the router power switch to the
			standby position (), (for DC power, also
			turn the circuit breaker to the off position
			and tape it in that position), remove the
			cable and replace it.
		Faulty power supply.	If the system still fails to come up when
			the power supply is connected to a
			different power source with a new power
			cable, the power supply is probably
			faulty. Contact a service representative.
System powers off,		Power supply failure.	Contact a service representative.
no STATUS LED,
and no operating
fans.

Cisco 7201 Installation and Configuration Guide

OL-11364-04 5-5