Panasonic TOUGHBOOK CF-45 Series Service Manual page 46

3F-45 |
el
4.3.7 FDD DIAGNOSIS:
Make sure that connecting cables, connectors and AC adapter are not loose or disconnected prior to testing:
floppy disk?
Try cleaning the disk heads.
Does this fix the problem?
Replace the FDD.
Does operation return to
normal?
Replace the FDD FPC.
Does operation return to
normal?
5 | Floppy disk is scratched or 5-1
otherwise damaged
6 | Content of floppy disk is
destroyed.
6-
Try cleaning the disk heads.
Does thi the problem?
Was the eject button pressed
while the system was
accessing the disk?
Replace the FDD.
s ' 5 Ref. Page
No. | Symptom eee oe ahea. Component] Shematic:
: No. Result : Diagrams
1 |} Access lamp does not Replace the FDD. YES | FDD —s —
fight. 1-1! Does operation return to
normal? NO | Go to No, 1-2 — or
Replace the LED PCB. YES | LED PCB "ps SLED1
1-2 |.Does operation return to .
normal?
*
NO | Goto No. 1-3
eed
a
Replace the Main PCB. YES | Main PCB 1C19. . | " Main 16
1-3} Does operation return to
normal? : : NO. |. FDD FPC —_ =
2 | Cannot insert ftoppy disk. Dt In the floppy disk warped or | YES | Floppy disk = —_—
Cannot remove floppy disk. bent, or labels interfering?. NO | FDD — =
3 | Does not boot from FDD, 34 Are there system files on the |. YES | Main PCB IC19 Main 16
media? NO_| Software = =
4 | Cannot read from floppy Is the floppy disk format | yes | Go to No. 4-2 — ss
disk. 4-1 | correct for the operating =
Cannot write to floppy disk. system currently being used?_|_NO_| Floppy disk format Tass =e
Does this occur for a specific | YES | Floppy disk
6-2 | Does operation return to
normal? Main PCB IC19 Main 16
7 | Damage to contents written | >, Does this occur for a specific | YES | Floppy disk — —
to floppy disk. floppy disk? NO _| Go to No. 7-2 Parse -—
Damage to contents read Replace the FDD. YES | FDD — _—
from floppy disk. 7-2 | Does operation return to
normal? NO } Go to No. 7-3 = —
Replace the FDD FPC. yes | FDD EPC = —
7-3 | Does operation return to
normal? NO | Main PCB IC19 Main 16
8 | Abnormal sound. 1 Does it sound like the head is | YES | Normal = ——
moving? NO_| Go to No. 8-2 —. =
Does the abnormal sound | yes | FpD — —_
8-2 | stop when the motor stops
running.
9 | Diagnostic Test reports Replace the FDD. ke FDD = =
problem in FDC. 9-1 | Does operation return to
normal? NO j Main PCB Ic19 Main 16