Troubleshooting
Rev. A
5-17
Table 5-14. Repair of C210 MAIN Board (continued)
Condition
Cause
Check point
Solution
Symptom : Abnormal printing (continued)
(continued)
PG motor is not
functioning
properly.
Fuse F1 is
defective.
Check is the fuse F1 is blown out. If it
is, check peripheral parts before
replacing the fuse in case they are
also shortened due to the fuse
problem.
Replace the
main control
board or any
bad parts.
Symptom : Paper is fed abnormally.
PF motor is not
functioning
properly.
PF motor driver
circuit is
defective.
Check pin 5,6,16 and 17 of IC6 for
input signal waveform and pin 1,8,11
and 18 of
for output signal
waveform.
If no motor phase input signals is
input, gate array
is defective.
If no drive waveforms is output,
is defective.
Figure 5-16. PF motor Drive Waveform
Replace the
main control
board or
.
Symptom :The control panel is not functioning properly.
Buttons,
'
or
operation is
abnormal.
Control panel
control circuit is
defective.
Check that the harness for the
control panel is securely connected
to the control circuit board.
Check If the harness is not
damaged. IF not, the
(
) or
gate array
is defective.
Replace the
control panel or
main control
board.
Symptom : Abnormal data transmission between the host computer and the printer.
Communication
error has
occurred or data
is garbled.
Any of the
interface parts is
defective.
Replace the interface cable and run
the self-test.
If the self-test runs normally, any of
the interface parts is defective.
Replace the
main control
board.
is defective.
Symptom : The default settings are not stored.
$
is
defective or
abnormal writing
operation to the
$
.
Replace the
main control
board.
Summary of Contents for DLQ-3000+
Page 1: ...EPSON EPSON EPSON France S A SERVICE MANUAL DLQ 3000 PRODUIT ...
Page 2: ...EPSON 24 PIN DOT MATRIX PRINTER EPSON DLQ 3000 SERVICE MANUAL SEIKO EPSON CORPORATION 4008259 ...
Page 6: ...v REVISION SHEET Revision Issued Data Contents Rev A August 21 1997 First Release ...
Page 62: ...2 3 12 Other Sensor Circuits 2 30 ...
Page 160: ...Chapter 6 Maintenance 6 1 Maintenance 6 1 6 1 1 Lubrication and Adhesion 6 1 ...
Page 171: ...DLQ 3000 Rev A A 6 ...
Page 172: ...Appendix Rev A A 7 A 2 Circuit Diagrams Figure A 2 C210 MAIN Board Circuit Diagram 1 2 ...
Page 173: ...DLQ 3000 Rev A A 8 ...
Page 174: ...Appendix Rev A A 9 Figure A 3 C210 MAIN Board Circuit Diagram 2 2 ...
Page 175: ...DLQ 3000 Rev A A 10 ...
Page 177: ...DLQ 3000 Rev A A 12 Figure A 5 C124 PSB Board Circuit Diagram ...
Page 180: ...Appendix Rev A A 15 Figure A 8 C210 MAIN Board Component Layout 2 2 ...
Page 181: ...DLQ 3000 Rev A A 16 Figure A 9 C124 PSB Board Component Layout ...
Page 182: ...Appendix Rev A A 17 Figure A 10 C124 PSE Board Component Layout ...
Page 189: ...EPSON SEIKO EPSON CORPORATION ...
Page 254: ...PC 437 USA Europe standard Annexe A 27 ...
Page 255: ...PC 850 Multilingue PC 860 Portugais PC 863 Français canadien PC 865 Norvégien A 28 Annexe ...
Page 256: ...PC861 Islandais BRASCII Portugais brésilien Abicomp Portugais brésilien Annexe A 29 ...
Page 259: ...A 32 Annexe ...
Page 262: ...Utilisation du sommaire des commandes A 10 V Vitesse 2 25 W Windows Microsoft 1 17 18 Index 3 ...