Lenovo 7749, 7721, 7715, 7774, 7706, 7719, 7799, 7773, 7705, 7717, 7718, 7522, 7515, 7569, 7523, 7611 Contents

Contents

Chapter 1. About this manual . . . .	. 1		Chapter 7. Symptom-to-FRU index . .	. 53
Important safety information	.	1	Hard disk drive boot error	.	53
Important information about replacing the RoHS			Power supply problems	. 53
compliant FRUs	.	2	Diagnostic error codes	.	54
			Beep symptoms	.	76
Chapter 2. Safety information . . . .	.	3	POST error codes	.	77
General safety	.	3	Miscellaneous error messages	.	79
			Undetermined problems	.	80
Electrical safety	.	3
Voltage-selection switch	.	5	Chapter 8. Replacing FRUs (Machine
Safety inspection guide	.	5
Handling electrostatic discharge-sensitive devices .	.	6	Types: 7515, 7523, 7569, 7611, 7706,
Grounding requirements	.	7	7717, 7719, 7749, and 7774.) . . . .	.	83
Safety notices (multi-lingual translations) . . . .	.	7	Locating connectors on the front of your computer		84
Chapter 3. General information . . . .	39		Locating connectors on the rear of your computer		85
			Removing the computer cover	. 86
Lenovo Care	.	39	Locating components	.	88
Additional information resources	.	39	Locating parts on the system board	.	89
Specifications	.	40	Removing and reinstalling the front bezel . . .	.	89
For machine types: 7515, 7523, 7569, 7611, 7706,			Installing or replacing a memory module . . .	. 90
7717, 7719, 7749, and 7774	.	40	Installing or replacing an adapter card . . . .	.	92
For machine types: 7522, 7560, 7610, 7705, 7715,			Replacing the battery	.	95
7718, 7721, 7773, and 7799	.	40	Replacing the power supply assembly . . . .	.	96
For all machine types	.	41	Replacing the heat sink and fan assembly . . .	.	98
Chapter 4. General checkout	43		Replacing the microprocessor	.	100
			Replacing the system board	.	103
Problem determination tips	.	43	Replacing the primary hard disk drive . . . .	.	105
			Replacing the secondary hard disk drive . . .	. 107
Chapter 5. Diagnostics	45		Replacing the optical drive	.	110
Lenovo System Toolbox	.	45	Replacing the diskette drive or card reader . .	. 112
			Replacing the front fan assembly	.	113
PC-Doctor for Windows PE	. 45
			Replacing the rear fan assembly	.	115
Running diagnostics from the Rescue and
			Replacing the internal speaker	.	117
Recovery workspace	.	46
			Replacing the front audio and USB assembly . . . 119
PC-Doctor for DOS	.	46
			Completing the FRU replacement	. 120
Creating a diagnostic CD/DVD image . . .	. 46
Running diagnostics from the disc	. 46		Chapter 9. Replacing FRUs (Machine
Navigating through the diagnostics programs . . 47
			Types: 7522, 7560, 7610, 7705, 7715,
Running tests	.	47
Viewing the test log	.	48	7718, 7721, 7773, and 7799.)	123
Chapter 6. Using the Setup Utility . . .	49		Locating connectors on the front of the computer		124
			Locating connectors on the rear of the computer		125
Starting the Setup Utility program	.	49	Opening the computer cover	.	126
Viewing and changing settings	. 49		Accessing the system board components and
Using passwords	.	49	drives	.	127
Password considerations	.	50	Locating components	.	128
Power-On Password	.	50	Locating parts on the system board	. 129
Privileged Access Password	. 50		Installing or replacing a memory module . . .	. 130
Setting, changing, and deleting a password . .	. 50		Installing or replacing an adapter card . . . .	. 132
Enabling or disabling a device	.	51	Replacing the battery	.	134
Selecting a startup device	.	51	Replacing the hard disk drive	.	136
Selecting a temporary startup device . . . .	.	51	Replacing the optical drive	.	137
Selecting or changing the startup device sequence 52			Replacing the power supply assembly . . . .	. 140
Advanced settings	.	52	Replacing the heat sink and fan assembly . . .	.	142
Exiting from the Setup Utility program . . . .	.	52	Replacing the microprocessor	.	144
			Replacing the system board	.	147
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