IBM 380Z manual Checkout, System programs, Systems, Pin Voltage V dc

A new features or options is added to the computer.

To update		the		flash memory,	do the		following:
1.	Obtain	an	appropriate diskette			containing the update.
2.	Insert	the		System Program	Service		diskette into drive
	A, and	turn on the computer with ac power or a fully
	charged	battery.
3.	SelectUpdate		system programs		from	the	menu.

Power		Systems	Checkout
To	determine		whether a	power systems problem is due to
the	AC	Adapter or the		battery, do the following:

1.Remove the battery.

2.Connect the AC Adapter and check that power is supplied.

3.Disconnect the AC Adapter and install the charged battery; then check that power is supplied by the battery.

If the problem is due to the AC Adapter, go to “AC Adapter Checkout”

If the problem is due to the battery, go to “Battery Checkout” on page 14

If the problem is not due to the AC Adapter or the battery, go to “Backup Battery Checkout (Nonrechargeable)” on page 15

AC Adapter	Checkout:			This checkout is used only
when the	computer		fails under		ac	power.
If	the	problem		occurs only	when the AC Adapter is
used	with a		port replicator,			replace the replicator.
If	the	power-on		indicator	does not turn on, check the

power cord of the AC Adapter for conductivity and installation.

1.Unplug the AC Adapter cable from the computer and measure the output voltage at the cable plug. See the following figure:

Pin

1

2

Voltage (V dc)

+15.5 to+17.0

Ground

a. If the voltage persists, go to the next step.

ThinkPad 380Z 13