RUNNING THE DIAGNOSTICS
Checking the Installed Devices List
If a device is installed but the icon appears in a gray shade
rather than a dark shade on the basic diagnostics menu,
the device is defective. If necessary, adjust the contrast
control to clearly distinguish the shades of the icon.
Reseat the device connectors. If the symptom remains,
replace the device or the system board.
If a device that is not installed appears in a dark shade (for
example, FDD-2 appears in a dark shade when
no second
FDD is installed), do the following:
1. Replace the first device in the configuration, such as
an FDD-1.
2. If the problem persists, replace the card that the
device is connected to.
The Parallel, and Serial icons are always displayed in a
dark shade, because the icons represent subsystems of
the system board and not the attachment of devices.
The FDD-1 icon represents a device in the computer. The
FDD-2 icon represents another device, such as:
An external diskette drive attached to the computer
An external diskette drive attached to a port replicator
A diskette drive in a docking station
Diagnostic Error Codes
If an error is detected, the following appears:
Large X on the left side of the device icon.
Device ID (three digits).
Error code (two digits).
FRU code (four digits).
The device ID and error code indicate the detailed portion
of the FRU that caused the error. If replacing a FRU does
not correct the problem, see the device ID or error code
from the previous failure. If they have changed, the cause
might be that the new FRU is defective or that the FRU
was incorrectly installed.
Device ID:
If an error is detected by the diagnostic
tests, a three-digit device ID is displayed, indicating the
suspected device.
General Descriptions
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Summary of Contents for ThinkPad 770E
Page 80: ...FRU REMOVALS AND REPLACEMENTS 74...
Page 102: ...FRU REMOVALS AND REPLACEMENTS Locate the microphone spacer and cable 96...
Page 111: ...FRU REMOVALS AND REPLACEMENTS ThinkPad 770 770E 770X and 770Z 105...
Page 123: ...PARTS LIST Parts List ThinkPad 770 770E 770X and 770Z 117...
Page 136: ...IBM Part Number 37L5152 Printed in U S A S1 L 9621 2...
