Lenovo T41/T41P, T42/T42P manual FRU tests, Following table shows the test for each FRU

Product overview

FRU tests

The following table shows the test for each FRU.

FRU	Applicable test
System board	1.	Diagnostics -->CPU/Coprocessor
	2.	Diagnostics -->Systemboard
	3.	If the docking station or the port replicator
		is attached to the ThinkPad computer,
		undock it. Place the computer on a
		horizontal surface, and run Diagnostics -->
		Other Devices -->HDD Active Protection
		Test.
		Note: Do not apply any physical shock to
		the computer while the test is running.
Power	Diagnostics -->Other Devices -->AC
	Adapter, Battery 1 (Battery 2)
LCD unit	1.	Diagnostics -->Video Adapter
	2.	Interactive Tests -->Video
Modem	1.	Make sure the modem is set up correctly.
daughter card	2.	Replace the modem jack and the modem
(MDC or		card in turn, and run the following tests in
BMDC)
		Diagnostics -->Communication:
		a. Lucent Soft Modem Loopback
		b. Lucent Soft Modem Dialtone
		c. Conexant Smart Modem Interrupt
		d. Conexant Smart Modem Dialtone
Audio	1.	Interactive Tests -->Internal Speaker
	2.	Diagnostics -->Other Devices -->Analog
		Devices AC97 CODEC Test
Speaker	Interactive Tests -->Internal Speaker
PC Card slots	1.	Diagnostics -->Systemboard -->PCMCIA
	2.	Insert a PC Card Wrap Plug into every PC
		Card slot, and run Diagnostics -->
		Systemboard -->PCMCIA External Loop
Keyboard	1.	Diagnostics -->Systemboard -->
		Keyboard
	2.	Interactive Tests -->Keyboard
Hard disk drive	Diagnostics -->Fixed Disks
Diskette drive	1.	Diagnostics -->Diskette Drives
	2.	Interactive Tests -->Diskette
DVD drive or	1.	Diagnostics -->Other Devices -->
DVD/CD-RW		CD-ROM/DVD
combo drive	2.	Interactive Tests -->CD-ROM/DVD Test

(continued)

ThinkPad T40/T40p, T41/T41p, T42/T42p Series 53