Rev. A
Troubleshooting 4-9
TM-U200 Series (Type A/AM) Technical Manual
C o n fid e n tia l
6
Replace printer
End
OK?
No
Replace interface PCB.
No
No
No
No
No
No
Yes
No
Yes
Yes
Yes
Yes
Set DIP switch 1–1 to OFF.
Send data from host to printer.
Is “?” printed?
Are serial
interface parameters
set to identical values at
host and printer?
Make settings identical.
Replace with a proper cable.
Is
Connect the interface
End
End
End
End
OK?
OK?
OK?
6 Data from host is not printed normally.
Yes
Does
interface
cable match
specifications?
Yes
connected to the
main PCB
firmly?
interface PCB
PCB firmly.
mechanism assembly
Yes
(*)
(*) Dotted line indicates
the process of checking
problems for the serial
interface.
Summary of Contents for TM-U200 Series
Page 6: ...iv Confidential Revision Sheet Revision Page Altered Items and Contents Rev A ...
Page 72: ...2 30 Mechanism Configuration and Operating Principles Rev A Confidential ...
Page 172: ...6 Appendix Rev A Confidential Main Circuit Board Parts Layout ...
Page 176: ...10 Appendix Rev A Confidential ...
Page 186: ...Rev A Appendix A 20 TM U200 Series Type A AM Technical Manual Confidential ...
Page 187: ...Confidential SEIKO EPSON CORPORATION Printed in Japan ...
