Lenovo 646502U Hardware Maintenance Manual - Page 109
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Table 33. Removal steps of structure frame (continued) Remove the CPU support plate. 78 Step 7 Screw (quantity) M2 × 5 mm, flat-head, nylon-coated (1) Color Black Torque 0.167 Nm (1.7 kgfcm) 9 9 10 9 9 11 9 9 a 12 12 Step Screw (quantity) Color Torque 9 M2 × 3.5 mm, flat-head, nylon-coated (9) Black 0.167 Nm (1.7 kgfcm) 10 M2 × 9.5 mm, flat-head, nylon-coated (1) Black 0.167 Nm (1.7 kgfcm) 11 M2 × 3 mm, small-head, nylon-coated (1) Silver 0.167 Nm (1.7 kgfcm) In step a , loosen the hex screws. When installing: When attaching the system board to the frame, adjust the placement with the small projection a . Then secure the system board with the screws. ThinkPad T61 and T61p (15.4-inch widescreen) 103
Table
33.
Removal
steps
of
structure
frame
(continued)
Remove
the
CPU
support
plate.
7
8
Step
Screw
(quantity)
Color
Torque
±7²
M2
×
5
mm,
flat-head,
nylon-coated
(1)
Black
0.167
Nm
(1.7
kgfcm)
9
9
9
9
10
11
9
9
12
12
a
Step
Screw
(quantity)
Color
Torque
±9²
M2
×
3.5
mm,
flat-head,
nylon-coated
(9)
Black
0.167
Nm
(1.7
kgfcm)
±10²
M2
×
9.5
mm,
flat-head,
nylon-coated
(1)
Black
0.167
Nm
(1.7
kgfcm)
±11²
M2
×
3
mm,
small-head,
nylon-coated
(1)
Silver
0.167
Nm
(1.7
kgfcm)
In
step
±a²
,
loosen
the
hex
screws.
When
installing:
When
attaching
the
system
board
to
the
frame,
adjust
the
placement
with
the
small
projection
±a²
.
Then
secure
the
system
board
with
the
screws.
ThinkPad
T61
and
T61p
(15.4-inch
widescreen)
103