PC Card-Related Symptoms
Symptom / Error FRU / Action in Sequence
PC Card does not work
either in the upper slot or
the lower slot.
Diagnostic error code:
DEV 080
ERR 33
FRU 7210
1. Reseat the PCMCIA
slot assembly.
2. PCMCIA slot assembly
3. System board
PCMCIA slot pin is
damaged. PCMCIA slot assembly
PC Card does not work. 1. Reseat the PC Card
2. Check the PC Card is
enabled in the
ThinkPad Configuration
program
3. Reseat the PCMCIA
slot assembly.
4. PCMCIA slot assembly
5. System board
Peripheral-Device-Related Symptoms
Symptom / Error FRU / Action in Sequence
External display does not
work correctly. See “External Display
Self-Test” on page 682.
Printer problems. 1. Run printer self-test.
2. Parallel port device
3. Cable
4. System board
Parallel port device
problems. 1.Device
2. Device cable
3. System board
Serial port device problems. 1.Device
2. Device cable
3. DC/DC card
External diskette drive does
not work correctly, or
internal diskette drive is not
recognized.
1. Reseat the external
FDD connector.
2. External diskette drive
3. Make sure that the
diskette is not
damaged.

ThinkPad 770 (9548, 9549) 559