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4.4.8. PRINTING DIAGNOSIS
Make sure that connecting cables, connectors and AC adapter are not loose or disconnected prior to testing.
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.)
4.4.9. CD-ROM Drive DIAGNOSIS
Make sure that connecting cables, connectors and AC adapter are not loose or disconnected prior to testing.
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
IC5
IC5
IC5
IC5
IC5
Component
LD703
IC3
IC3
IC3
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