HP OmniBook 2100/3000/3100 Troubleshooting and Diagnostics 3-7 Symptom Call Center: Repair Center: Repair Center: Suggestions Likely Causes Comments White display Adjust display brightness. LCD module. Inverter PCA. LVDS PCA. Erratic display LCD cables or connections. LCD module. Bright or missing pixels or lines See quality statement on page 5-2. LCD module. LCD cables or connections. See quality statement on page 5-2. Hard disk Hard disk never spins Check the power source. Remove and reinsert the hard drive. Check the contacts. Hard drive or contacts. Motherboard. Hard drive case (flex cable). If the drive case is damaged, it can prevent proper operation. Check the flex cable for wear.
Hard disk makes clunking or scratching noise Back up the drive immediately. Was the computer or drive dropped? Hard drive. Check the computer and drive for evidence of customer abuse. Hard disk makes buzzing or whining noise Back up the drive immediately. Check for alternate noise sources, such as a PCMCIA drive or fan. If a keystroke causes the sound to change, it may be power supply noise. Depends on the source of the noise. Files are corrupted Run a virus scan program. Check the disk surface by running ScanDisk (Windows 95) or Disk Administrator (Windows NT). Or boot to DOS and run CHKDSK to look for problems, run CHKDSK /f to fix. Use Recovery CD to restore original factory software.
Use same suggestions shown at left. Drive capacity is less than normal Check the disk surface by running ScanDisk (Windows 95) or Disk Administrator (Windows NT). Check partitions using FDISK (Windows 95) or Disk Administrator (Windows NT). Hard drive. Use same suggestions shown at left. Recreate the Hibernate partition, then partition and format the disk. Toshiba hard disk runs sluggishly Remove the drive from the computer. If the drive is fully exposed in the HDD case (a metal shield is not present), check whether it is a Toshiba drive. Hard drive. HDD case.
If the hard drive is fully exposed in the HDD case (the metal top shield is not installed), install a new case with shield if the drive is a Toshiba drive.