Symptom Charts Startup

If expansion memory card installed, remove it and press reset button. Remove battery, wait 30 seconds, reinstall battery, turn on computer. Remove battery, remove and reseat ROM card, reinstall battery, turn on computer. Replace logic board. Check LCD contrast and volume control and adjust to mid-range. Plug in AC adapter, and press reset button. Wait at least 30 seconds for boot up chime. Remove adapter and battery remove and reseat ROM card reinstall battery...