Main
ThinkPad Computer Hardware Maintenance Manual
1836, 1840, 1841, 2883, 2887, 2888,
2889, 2894, 2895)
Page
Contents
Lenovo 2005. Portions IBM Corp. 2005. iii
iv
About this manual
This manual contains service and reference information for ThinkPad
Lenovo 2005. Portions IBM Corp. 2005. 1
Page
Introduction
Important service information
Lenovo 2005. Portions IBM Corp. 2005. 3
Strategy for replacing FRUs
Strategy for replacing a hard disk drive
How to use error messages
Diskette compatibility matrix
Diskette capacity
Safety notices: multilingual translations
Important service information
Safety notice 1
Introduction 5
Safety notice 2
6
(continuation of safety notice 2)
Introduction 7
Safety notice 3
8
(continued)
Introduction 9
Safety notice 4
10
(continuation of safety notice 4)
Introduction
Safety notice 5
12
Safety notice 6
Introduction 13
Safety notice 7
14
Safety notice 8
Introduction 15
Safety information
16
General safety
Introduction 17
Electrical safety
Observe the following rules when working on electrical equipment.
18
Safety inspection guide
Introduction 19
Handling devices that are sensitive to electrostatic discharge
20
Use the round ground prong of the ac plug on ac-operated computers.
Grounding requirements
Introduction 21
Laser compliance statement
22
CAUTION:
Introduction 23
24
General descriptions
The desciptions in this chapter apply to any ThinkPad model that has the PC-Doctor
Lenovo 2005. Portions IBM Corp. 2005. 25
program. Some descriptions might not apply to your particular computer.
Read this first
26
Read this first
Related service information
This section provides information about the following: v Service Web site v v v
General descriptions 27
Service Web site
Restoring the pre-installed system
Passwords
28
General descriptions 29
How to remove the power-on password
How to remove the hard-disk password
30
Page
Power management
32
Screen blank mode
Standby mode
Hibernation mode
General descriptions 33
Checkout guide
34
Testing the computer
Creating the PC-Doctor diagnostics diskette
General descriptions 35
The options on the test menu are as follows:
36
v v v v v v v v v v v v v v v
v v v v v v v v
WirelessLAN
Usethecursor keys and ESC to move in menus. PressENTERtoselect.
Detecting system information with PC-Doctor
Hardware Info
Utility
Power system checkout
Checking the ac adapter
38
(16-10V)
Pin Voltage (V dc) 1 +15.5 to +17.0 2 Ground
Checking operational charging
Checking the backup battery
Checkout guide
Red (+) Black (-)
Wire Voltage (V dc) Red +2.5 to +3.2 Black Ground
40
v v v replacement, replace the system board.
Checkout guide
ThinkPad R50/R50p and R51 Series
Lenovo 2005. Portions IBM Corp. 2005. 41
42
Product overview
This section presents the following product-unique information: v v v v
ThinkPad R50/R50p and R51 Series 43
(continued)
Specifications
44
(continued)
ThinkPad R50/R50p and R51 Series 45
(continued)
46
ThinkPad R50/R50p and R51 Series 47
Status indicators
The system status indicators show the status of the computer, as follows:
48
2 7 8
9
(continued)
ThinkPad R50/R50p and R51 Series 49
R
Product overview
Indicator Meaning 8 Standby
FRU tests
The following table shows the test for each FRU.
50
(continued)
Product overview
ThinkPad R50/R50p and R51 Series 51
Product overview
Fn key combinations
52
(continued)
combination
Product overview
ThinkPad R50/R50p and R51 Series 53
Product overview
Symptom-to-FRU index
54
Numeric error codes
0175 Bad CRC1, stop POST taskThe EEPROM checksum is not correct.
System board. 0176 System SecurityThe system has been tampered with.
ThinkPad R50/R50p and R51 Series 55
56
ThinkPad R50/R50p and R51 Series 57
Error messages
58
Beep symptoms
No-beep symptoms
ThinkPad R50/R50p and R51 Series 59
LCD-related symptoms
60
Note: (white or color.) A dark dot means a pixel is always off (black color.)
No beep, power-on indicator on, and a blank LCD during POST.
System board. v v v adjusted. v adjusted.
Intermittent problems
ThinkPad R50/R50p and R51 Series 61
Undetermined problems
FRU replacement notices
62
(Cross-section)
Screw notices
90degrees more
Retaining serial numbers
ThinkPad R50/R50p and R51 Series 63
This section includes the following descriptions: v v v
Restoring the serial number of the system unit
Retaining the UUID
64
Reading or writing the ECA information
ThinkPad R50/R50p and R51 Series 65
Removing and replacing a FRU
66
1010 Battery pack
ThinkPad R50/R50p and R51 Series 67
1020 Ultrabay Enhanced device
68
1030 Hard disk drive
ThinkPad R50/R50p and R51 Series 69
(continued)
Note:
Removing and replacing a FRU
70
1040 DIMM (optional)
For access, remove this FRU:
ThinkPad R50/R50p and R51 Series 71
Note:
1050 Keyboard
For access, remove this FRU:
72
(continued)
1 1a
When installing: Make sure that the connector 4 is
ThinkPad R50/R50p and R51 Series 73
74
ThinkPad R50/R50p and R51 Series 75
b b
1060 DIMM (standard)
For access, remove these FRUs in order: v
76
1070 Modem daughter card (MDC/MDC-2)
For access, remove these FRUs in order: v
ThinkPad R50/R50p and R51 Series 77
Turn the card over 3 , and detach the modem connector 4.
78
1080 Bluetooth/Modem daughter card (BMDC/BMDC-2)
For access, remove these FRUs in order: v
ThinkPad R50/R50p and R51 Series 79
80
1090 Keyboard bezel
For access, remove these FRUs in order: v
ThinkPad R50/R50p and R51 Series 81
(continued)
1 1
82
M2 12 mm, bind-head, nylon-coated (3)
(2.5 kgfcm) 4 4
M2 12 mm, bind-head, nylon-coated (2)
(2.5 kgfcm) 5 5
ThinkPad R50/R50p and R51 Series 83
3. Attach the touch pad connector 4.
84
1100 Mini PCI adapter
For access, remove these FRUs in order: v v v
ThinkPad R50/R50p and R51 Series 85
(continued)
86
MAIN
ThinkPad R50/R50p and R51 Series 87
AUX
88
MAIN
AUX
1110 Fan assembly
For access, remove these FRUs in order: v v v
ThinkPad R50/R50p and R51 Series 89
(Bottom view of the fan assembly)
1 M2 10 mm, flat-head, nylon-coated (3)
1120 CPU
90
1130 Backup battery
For access, remove these FRUs in order: v v v
ThinkPad R50/R50p and R51 Series 91
When installing: 2 is firmly attached.
1140 Speaker assembly
92
In step 3 , release the speaker cables from the cable guide a .
ThinkPad R50/R50p and R51 Series 93
1150 IEEE 1394 cable
For access, remove these FRUs in order: v v v v v
94
(continued)
Note Some models do not have the IEEE 1394 cable.
Before remove the IEEE 1394 cable, remove bracket structure 5 . (continued)
Removing and replacing a FRU
ThinkPad R50/R50p and R51 Series 95
96
1160 PC Card slots assembly
For access, remove these FRUs in order: v v v v v v
ThinkPad R50/R50p and R51 Series 97
1 M2 4 mm, flat-head, nylon-coated (2)
Removing and replacing a FRU
1170 Ultrabay Enhanced shield kit
For access, remove these FRUs in order: v v v v
98
(continued)
Note: For the other models, skip this step.
2 a 3
ThinkPad R50/R50p and R51 Series 99
(continued)
2 M2 12 mm, bind-head, nylon-coated (1)
Removing and replacing a FRU
100
When installing: Make sure that the connectors 5 are firmly attached. (continued)
ThinkPad R50/R50p and R51 Series 101
For models with M9-32 or M10 GL-128 video chip:
102
For models with M7-32 video chip:
(continued)
7 M2 12 mm, bind-head, nylon-coated (2)
Removing and replacing a FRU
(continued)
Removing and replacing a FRU
ThinkPad R50/R50p and R51 Series 103
11 11 12 13
104
14
1180 LCD assembly
For access, remove these FRUs in order: v v v v (BMDC/BMDC-2) on page 79 v v
ThinkPad R50/R50p and R51 Series 105
(continued)
1 M2.5 4.8 mm, bind-head, nylon-coated (4)
106
Removing and replacing a FRU
Step Screw (quantity) Color Torque 5 M2 6 mm, bind-head, nylon-coated (1)
(continued)
(2.5 kgfcm) 7 M2 6 mm, bind-head, nylon-coated (1)
ThinkPad R50/R50p and R51 Series 107
Removing and replacing a FRU
108
1190 VGA and Ultrabay Enhanced device eject button cable
For access, remove these FRUs in order: v v v v v v v
ThinkPad R50/R50p and R51 Series 109
2 M2 4 mm, flat-head, nylon-coated (1)
When installing: Make sure that the connector 1 is firmly attached. (continued)
110
a
ThinkPad R50/R50p and R51 Series
b
4 Hex stud (2) Silver 0.392 Nm
Removing and replacing a FRU
1200 System board, interposer card, and base cover
112
(continued)
ThinkPad R50/R50p and R51 Series
114
(continued)
ThinkPad R50/R50p and R51 Series
116
5 Hex stud (2) Silver 0.392 Nm (4 kgfcm) 6 M2.5 3 mm, flat-head, nylon-coated (1)
ThinkPad R50/R50p and R51 Series
Removing and replacing a FRU
118
b
a
2010 LCD front bezel
ThinkPad R50/R50p and R51 Series
(continued)
cap
Screw (quantity) Color Torque 1
120
2020 Inverter card
122
When installing: in this figure.
ThinkPad R50/R50p and R51 Series 123
(continued)
4a
124
4a
5 M2 4 mm, bind-head, nylon-coated (2)
ThinkPad R50/R50p and R51 Series 125
(continued)
Removing and replacing a FRU
Remove the antenna assembly ( a ).
126
Remove the hinges ( b ) from the LCD assembly.
(continued)
(continued)
ThinkPad R50/R50p and R51 Series 127
128
ThinkPad R50/R50p and R51 Series 129
130
2. Route the antenna cables as in the following drawings:
(continued)
d
3. Route the cables as in the figure below.
ee
ThinkPad R50/R50p and R51 Series 131
3010 ThinkPad Dock II PCI cover
(Bottom view)
132
3020 ThinkPad Dock II top cover
(Rear view)
ThinkPad R50/R50p and R51 Series 133
(continued)
1 M2.5 4.8 mm (3) 0.392 Nm
134
(continued)
ThinkPad R50/R50p and R51 Series 135
Locations Front view
136
Page
Rear view
138
12
R
3
Bottom view
ThinkPad R50/R50p and R51 Series 139
Locations
Parts list Overall
140
ID a- j See Miscellaneous parts on page 217. 1 LCD unit (see LCD FRUs on page 188). N
ThinkPad R50/R50p and R51 Series 141
(continued)
Parts list
142
(continued)
ThinkPad R50/R50p and R51 Series 143
144
(continued)
ThinkPad R50/R50p and R51 Series 145
146
(continued)
ThinkPad R50/R50p and R51 Series 147
148
(continued)
ThinkPad R50/R50p and R51 Series 149
150
(continued)
ThinkPad R50/R50p and R51 Series 151
152
No. FRU P/N CRU ID 6 128-MB DDR SDRAM SO DIMM (PC2700) OP v v
(continued)
ThinkPad R50/R50p and R51 Series 153
31P9831 *
Parts list
154
(continued)
ThinkPad R50/R50p and R51 Series 155
156
(continued)
ThinkPad R50/R50p and R51 Series 157
158
(continued)
ThinkPad R50/R50p and R51 Series 159
160
(continued)
ThinkPad R50/R50p and R51 Series 161
162
(continued)
13R2701 N
ThinkPad R50/R50p and R51 Series 163
14.1-in. Korea v v v
13R2697 N
164
(continued)
ThinkPad R50/R50p and R51 Series 165
166
(continued)
Parts list
ThinkPad R50/R50p and R51 Series 167
168
Parts list
(continued)
ThinkPad R50/R50p and R51 Series 169
170
(continued)
Parts list
ThinkPad R50/R50p and R51 Series 171
172
(continued)
ThinkPad R50/R50p and R51 Series 173
174
(continued)
ThinkPad R50/R50p and R51 Series 175
176
(continued)
ThinkPad R50/R50p and R51 Series 177
178
93P4170 N
Parts list
(continued)
93P4170 N
ThinkPad R50/R50p and R51 Series 179
Parts list
180
(continued)
ThinkPad R50/R50p and R51 Series 181
182
93P4202 N
System board assembly, M7-32, 10/100 Ethernet v
91P7332 N
Parts list
(continued)
ThinkPad R50/R50p and R51 Series 183
184
(continued)
ThinkPad R50/R50p and R51 Series 185
186
91P6829 N
Parts list
ThinkPad R50/R50p and R51 Series 187
91P6829 N
Parts list
LCD FRUs
k l
188
n
m
14.1-in. XGA TFT
(continued)
ThinkPad R50/R50p and R51 Series 189
190
(continued)
ThinkPad R50/R50p and R51 Series 191
192
(continued)
ThinkPad R50/R50p and R51 Series 193
194
15.0-in. XGA TFT
(continued)
ThinkPad R50/R50p and R51 Series 195
196
(continued)
ThinkPad R50/R50p and R51 Series 197
198
(continued)
ThinkPad R50/R50p and R51 Series 199
200
15.0-in. SXGA+ IPS TFT
(continued)
ThinkPad R50/R50p and R51 Series 201
202
(continued)
ThinkPad R50/R50p and R51 Series 203
204
15.0-in. UXGA IPS TFT
ThinkPad R50/R50p and R51 Series 205
15.0-in. QXGA IPS TFT
AC adapters
206
Keyboard
ThinkPad R50/R50p and R51 Series 207
Table 2. Keyboards for 14.1-in. LCD models
208
Recovery CDs
For Windows XP Professional (R50/R50p series)
ThinkPad R50/R50p and R51 Series 209
Parts list
For Windows XP Professional (R51 series)
210
ThinkPad R50/R50p and R51 Series 211
212
ThinkPad R50/R50p and R51 Series 213
For Windows XP Home Edition (R50/R50p series)
214
For Windows XP Home Edition (R51 series)
ThinkPad R50/R50p and R51 Series 215
Parts list
216
Parts list
Miscellaneous parts
(continued)
ThinkPad R50/R50p and R51 Series 217
218
(continued)
ThinkPad R50/R50p and R51 Series 219
220
Optional FRUs
ThinkPad R50/R50p and R51 Series 221
Parts list
Common parts list
Tools
222
Power cords (system)
ID Canada, U.S. 13H5264 * Japan 74P4331 Argentina 36L8870 Brazil 49P2095
Power cords (ThinkPad Dock and ThinkPad Dock II)
ThinkPad R50/R50p and R51 Series 223
Notices
224
Notices
Notices
ThinkPad R50/R50p and R51 Series 225
Trademarks
226
