Computer Laptop User Manual
Table Of Contents
- PowerBook 200 Series
- Basics
- Specifications
- Troubleshooting
- General
- Power Manager Reset
- Symptom Charts
- Startup
- Startup (Continued)
- Power
- Power (Continued)
- Power (Continued)
- Power (Continued)
- Power (Continued)
- Power (Continued)
- Video
- Video (Continued)
- Video (Continued)
- Video (Continued)
- Video (Continued)
- Video (Continued)
- Video (Continued)
- Video (Continued)
- Video (Continued)
- Video (Continued)
- Video (Continued)
- External Floppy Drive
- External Floppy Drive (Continued)
- External Floppy Drive (Continued)
- External Floppy Drive (Continued)
- Hard Drive
- Peripherals
- Peripherals (Continued)
- Peripherals (Continued)
- Peripherals (Continued)
- Peripherals (Continued)
- Peripherals (Continued)
- Peripherals (Continued)
- Peripherals (Continued)
- Peripherals (Continued)
- Internal Modem
- Internal Modem (Continued)
- Internal Modem (Continued)
- Internal Modem (Continued)
- Internal Modem (Continued)
- Internal Modem (Continued)
- Miscellaneous
- Miscellaneous (Continued)
- Miscellaneous (Continued)
- Take Apart
- Main Battery
- Keyboard
- End Clutch Covers
- Top Case
- Hard Drive
- Backup Battery
- Trackball
- Center Clutch Cover
- Display Assembly and CPU Stiffener
- Display Assembly
- CPU Stiffener
- Logic Board
- Case Bottom
- Display Housing
- 210/230/250/280 Dsply Cable
- 270c/280c Display Cable
- 270c/280c Inverter Board
- 270c/280c Actuator
- 270c/280c Speaker
- Feet
- Rear Cover & I/O Door
- Upgrades
- Additional Procedures
- Exploded View
Troubleshooting Symptom Charts/Power - 6
Power
Screen is blank;
computer does not
respond
1 Simultaneously press <Command> <Control> <Power On> keys
to reset computer.
2 Connect power adapter and reboot computer in 3-4 minutes.
3 Try known-good, charged main battery.
4 Check all logic board cable connections.
5 Replace logic board.
Note:
When replacing the logic board, check that the EMI clips
are securely attached to the CPU stiffener. The “CPU Stiffener”
topic in Take Apart helps you locate and identify the two EMI clips.
If both clips are not secure, replace the CPU stiffener.