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SYMPTOM-TO-FRU INDEX
Symptom / Error
FRU / Action in Sequence
2XX
201: Memory data
error.
202: Memory line error
00–15.
203: Memory line error
16–23.
205: Memory test
failure on on-board
memory.
221: ROM to RAM
remap error.
1. Go to “Memory
Checkout” on
page 33.
2. DIMM card
3. System board
301, 303, 304, 305, 3XX
(301: Keyboard error.)
1. Go to “Keyboard or
Auxiliary Input
Device Checkout” on
page 32.
2. Keyboard
3. External numeric
keypad
4. External keyboard
5. Keyboard/mouse cable
6. System board
7. DC-DC Card
601, 6XX
(601: Diskette drive or
controller error.)
1. Go to “Diskette Drive
Checkout” on
page 31.
2. Diskette drive
assembly
3. Diskette
4. System board
602
(Diskette read error.)
1. Go to “Diskette Drive
Checkout” on
page 31.
2. Diskette
3. Diskette drive
assembly
604
(Unacceptable ID was read
from the diskette drive.)
1. Go to “Diskette Drive
Checkout” on
page 31.
2. Diskette drive
assembly
3. System board
808X
8081: PCMCIA
presence test failure.
(PCMCIA revision
number also checked.)
8082: PCMCIA register
test failure.
1. Reseat the PC Card
slot assembly.
2. PCMCIA device
3. System board
ThinkPad 770, 770E, 770X and 770Z
55
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...