Panasonic Toughbook CF-48 Service Manual page 24

No. Symptom
1
Data does not print from
the printer.
2 Data prints out incorrectly.
3 The unit hangs after
outputting data from the
printer.
4 Print area is out of line.
5
Data is printed all on one
line.
(Carriage return does not
work.)
No. Symptom
1 Access lamp does not
light.
2 Cannot read from DVD.
3 Tray does not open.
4 Abnormal sound.
Troubleshooting
procedures
No.
Does the printer pass its
1-1
self-printing test?
Does the printer pass its
2-1
self-printing test?
Is the Parallel Port (Data
2-2
Direction) setting correct?
Replace the Main PCB.
3-1 Does operation return to
normal?
Does the printer pass its
4-1
self-printing test?
Does the printer pass its
4-2
self-printing test?
Troubleshooting
procedures
No.
Replace the CD-ROM drive.
1-1 Does operation return to
normal?
Replace the LED PCB.
1-2 Does operation return to
normal?
Replace the Main PCB.
1-3 Does operation return to
normal?
Replace the media.
2-1 Does operation return to
normal?
Replace the CD-ROM drive.
2-2 Does operation return to
normal?
Replace the CD-ROM drive.
3-1 Does operation return to
normal?
Replace the media.
4-1 Does operation return to
normal?
4 - 12
Source of
problem
Result
YES Main PCB
NO Printer
YES Go to No. 2-2
NO Printer
YES Main PCB
NO Improper setting
YES Main PCB
NO Printer
YES Main PCB
NO Printer
YES Main PCB
NO Printer
Source of
problem
Result
YES CD-ROM drive
NO Go to No. 1-2
YES LED PCB
NO Go to No. 1-3
YES Main PCB
NO CD-ROM FPC
YES Media
NO Go to No. 2-2
YES CD-ROM drive
NO Main PCB
YES CD-ROM drive
NO Main PCB
YES Media
NO CD-ROM drive
Component
IC23
IC23
IC23
IC23
IC23
Component
LD804
IC13
IC13
IC13