Power Systems Checkout
To check the power supply voltages, do the following:
Note: If you cannot power-on the computer, a motor-start
jumper might be installed on the hard disk drive.
Remove the motor-start jumper.
1. Power-off the computer.
2. Unplug the two power-supply connectors.
3. Power-on the computer and check for the voltages
listed below.
If the voltages are not correct, check the power
cord for continuity.
If the power cord is good, replace the power
supply.
1
5
9
12
8
4
System Unit Fan:
A non-functioning fan can cause
heat to build up resulting in intermittent problems.
If the fan is not running, replace the power supply.
Vdc
Minimum
Vdc
Maximum
Ground (–)
Pin
Positive (
+
)
Pin
+
4.8
+
11.5
–11.0
+
5.2
+
12.6
−
12.9
6, 7, or 8
6, 7, or 8
6, 7, or 8
3, 4, or 5
2
1
150
IBM Mobile Systems HMM - Volume 1
Содержание N51 Series
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Страница 55: ...Parts Listing 1 2 3 4 5 6 7 8 9 10 11 12 14 15 16 13 17 18 Model L40 SX 8543 43 ...
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Страница 211: ...Exploded View 21 11 20 10 1 2 3 4 5 6 7 8 9 13 14 15 16 17 18 19 12 ThinkPad 300 2615 199 ...
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Страница 235: ...ThinkPad 350 Exploded View ThinkPad 350 PS Note 425 2618 223 ...
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Страница 262: ...ThinkPad 500 Exploded View 250 IBM Mobile Systems HMM Volume 1 ...
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Страница 290: ...ThinkPad 510 Exploded View 2A 13 14 15 2B 278 IBM Mobile Systems HMM Volume 1 ...
Страница 291: ...Bottom Cover Screws DD DD EE EE EE EE EE G G G G G G EE G DD EE Black Black Black ThinkPad 510 2604 279 ...
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Страница 318: ...ThinkPad 710T Exploded View 306 IBM Mobile Systems HMM Volume 1 ...
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Страница 441: ...1010 Main Cabinet Group Removal Make sure the security key is in the vertical position 1 2 3 Dock II 3546 429 ...
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