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IBM ThinkPad S30 Hardware Maintenance Manual: No Beep Symptoms; Lcd-related Symptoms

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Symptom/Error
Operating system
not found

No Beep Symptoms

Symptom/Error
No beep, power-on
indicator on, LCD blank,
no POST
No beep, power-on
indicator off, LCD blank
during POST
No beep, power-on
indicator on, LCD blank
during POST
No beep during POST
but system runs correctly.

LCD-Related Symptoms

Symptom/Error
LCD backlight not
working
LCD too dark
LCD brightness cannot
be adjusted
LCD screen unreadable
Character missing pels
Screen abnormal
Wrong color displayed
LCD has extra horizontal
or vertical lines
displayed.
22
ThinkPad s30, s31
FRU/Action in Sequence
1. Check that the operating system has no
failure and is installed correctly.
2. Enter IBM BIOS Setup Utility and see
whether the hard disk drive and the
diskette drive are properly installed.
3. Diskette drive
4. Hard disk drive
5. System board
FRU/Action in Sequence
1. Ensure every connector is
connected tightly and correctly.
2. DIMM
3. System board
1. Battery ASM
2. AC Adapter
3. System board
1. Reseat DIMM.
2. System board
Speaker
FRU/Action in Sequence
1. Reseat the LCD connector.
2. LCD FPC ASM
3. LCD inverter
4. LCD
5. System board
1. Reseat the LCD connector.
2. LCD FPC ASM
3. LCD inverter
4. LCD
5. System board
1. LCD FPC ASM
2. LCD inverter
3. LCD
4. System board

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This manual also for:

Thinkpad s31

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