IBM 2621421 Hardware Maintenance Manual - Page 47
Symptom/Error, FRU/Action in Sequence, Drive in the System Secu
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Symptom/Error Insert system diskette and press key to reboot. No beep, power-on indicator turns off and LCD is blank. No beep, power-on indicator turns on and LCD is blank. No beep, power-on indicator turns on and LCD is blank. But you can see POST on an external CRT. No beep, power-on indicator turns on and a blinking cursor shown on LCD during POST. FRU/Action in Sequence Ensure that "System Boot Drive" in the "System Security" menu of the BIOS Utility is not set to [Drive A]. Ensure the diskette drive configuration in the "Basic System Settings" menu of the BIOS Utility is not set correctly. Diskette drive cable Diskette drive Hard disk connection board Hard disk drive System board Power source (battery and adapter). See "Power Systems Check" on page 25. Ensure every connector is connected tightly and correctly. Charger board Battery pack AC Adapter System board Power source (battery and adapter). See "Power Systems Check" on page 25. Reconnect the LCD connector Charger board Processor board Reconnect the DIMM. System board Reconnect the LCD connectors. LCD inverter ID LCD LVDS board (for 13.3-inch LCD) LCD FPC cable LCD inverter LCD System board Ensure every connector is connected tightly and correctly. System board ThinkPad i Series 1400 (Part I) 39