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Preface
About This Manual
This manual contains service and reference information for
IBM ThinkPad i Series 1400 (2611) products. Use this
manual along with the advanced diagnostic tests to trou-
bleshoot problems effectively.
The manual is divided into sections as follows:
The Introduction section provides general information,
guidelines, and safety information required to service
computers.
The product-specific section includes service, refer-
ence, and product-specific parts information.
– Part I (begins on page 19) covers the following
ThinkPad i Series 1400 models: 2611-411,
2611-435, 2611-451, 2611-410, 2611-434,
2611-450, 2611-436-JP
– Part II (begins on page 105) covers the following
ThinkPad i Series 1400 models: 2611-472,
2611-452, 2611-412, 2611-476, 2611-456,
2611-40M, 2611-40A, 2611-49M, 2611-43M,
2611-40T, 2611-49A, 2611-43A, 2611-40C,
2611-49T, 2611-43T, 2611-40H, 2611-49C,
2611-43C, 2611-40K, 2611-49H, 2611-43H,
2611-40F, 2611-49K, 2611-43K, 2611-49F,
2611-47F
Important
This manual is intended for trained servicers who are
familiar with ThinkPad products. Use this manual
along with the advanced diagnostic tests to trouble-
shoot problems effectively. Before servicing an IBM
ThinkPad product, be sure to review the safety infor-
mation under “Safety Notices (Multi-lingual
Translations)” on page 4 and “Safety Information” on
page 11.
Related Publications
The following product publications are available through
IBM or your IBM Authorized Dealer.
Publication Part, Form Number
Mobile Systems HMM Volume 1:
Laptop, Notebook, Portable, and
ThinkPad Computers (Models
L40, CL57, N45, N51, P70/P75,
ThinkPad 300, 350, 500, 510,
710T, Expansion Unit, Dock I,
Dock II)
30H2356,
S82G-1501-01
Preface iii