PWRGOOD
VC
VB
VG
VA
GND
Password-Override
Connecter
Note: Only VOLT is marked on the system board.
Use the above figure to locate the VA, VG,
VB, VC, and PWRGOOD signal names.
If all voltages are correct, the voltage converter
is operating correctly.
If the voltages are not correct, go to the next
step.
8. Power-off the computer and unplug the AC adapter
cable from the computer.
9. Check for a short circuit between GND and VA, VG,
VB, or VC.
If there is a short circuit, replace the following
FRUs one at a time to correct the problem.
–
Voltage converter
–
System board
If there is no short circuit, go to the next step.
10. Check the output voltage of the AC adapter cable
(see “Checking the AC Adapter” on page 72).
If the output voltage is correct, go to the next
step.
11. Replace the following FRUs one at a time.
–
Voltage converter
–
System board
Checking the Voltage Converter (720,
720C):
Use the following procedure to isolate a
problem with the ThinkPad 720, 720C voltage converter.
1. Power-off the computer.
2. Power-off all attached devices and disconnect them
from the computer.
3. Unplug the AC adapter cable, then remove the
battery pack from the computer.
4. Carefully place the computer bottom-side up and
remove the bottom cover.
5. Plug the AC adapter cable into the computer.
78
IBM Mobile Systems HMM
Содержание ThinkPad 360
Страница 2: ......
Страница 8: ...vi IBM Mobile Systems HMM ...
Страница 34: ...Indicator Card 61 Parts Listing 62 Option Parts List 65 24 IBM Mobile Systems HMM ...
Страница 72: ...Parts Listing 1 2 3 4 5 6 7 8 10 9 12 11 13 14 17 16 15 62 IBM Mobile Systems HMM ...
Страница 116: ...ThinkPad 700 Exploded View 106 IBM Mobile Systems HMM ...
Страница 117: ...ThinkPad 700 Exploded View continued ThinkPad 700 700C 720 720C 9552 107 ...
Страница 118: ...ThinkPad 720 720C Exploded View 108 IBM Mobile Systems HMM ...
Страница 119: ...ThinkPad 720 720C Exploded View continued ThinkPad 700 700C 720 720C 9552 109 ...
Страница 175: ...ThinkPad 701C 701CS Exploded View 26 25 31 2 28 28 29 27 BC BJ BA BL 30 32 34 33 ThinkPad 701C 701CS 2630 165 ...
Страница 200: ...Parts Listing 190 IBM Mobile Systems HMM ...
Страница 204: ...194 IBM Mobile Systems HMM ...
Страница 261: ...ThinkPad 355x 360x 370C 750x 755C 755Cs 251 ...
Страница 324: ...314 IBM Mobile Systems HMM ...
Страница 368: ...2060 Keyboard Spacer 358 IBM Mobile Systems HMM ...
Страница 400: ...390 IBM Mobile Systems HMM ...
Страница 435: ...Feature Description IR Two IR ports PCMCIA One Type III or two Type II ThinkPad 755CE 755CSE 755CV 755CX 9545 425 ...
Страница 478: ...468 IBM Mobile Systems HMM ...
Страница 492: ...482 IBM Mobile Systems HMM ...
Страница 498: ...488 IBM Mobile Systems HMM ...
Страница 508: ...IBM Part Number 30H2357 Printed in U S A S82G 15ð2 ð3 ...