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/Startup - 4
Symptom Charts
Startup
RAM failure occurs
(eight-tone error
chord sequence
sounds after startup
chord)
1 Check RAM expansion card connection.
2 Replace RAM expansion card.
3 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.
Hardware failure
occurs (four-tone
error chord sequence
sounds after startup
chord)
1 Disconnect hard drive data cable and reboot system. If
startup sequence is normal, reseat cable and retest.
2 Replace hard drive.
3 If the system is connected to an external floppy drive,
disconnect drive and reboot system. If startup sequence is