IV - 1
CHAPTER IV TROUBLESHOOTING
4.1
Overview
This section gives the service personnel some of the troubleshooting procedures to
be followed if an error or malfunction occurs with this machine. It is impossible to
anticipate all of the possible troubles which may occur in future and determine the
troubleshooting procedures, so this chapter covers some sample troubles. However,
those samples will help service personnel pinpoint and repair other defective
elements if he/she analyzes and examines them well.
4.1.1 Precautions
Be sure to observe the following precautions to prevent the secondary problems from
happening during troubleshooting:
(1) Get a good idea of what the trouble is. Whenever more than one trouble source is
found, plan the most reasonable repairing procedure after reviewing the
relationship between them.
(2) When supplying power to this machine having problems from either a set of dry
cells or the optional AC adapter, make sure that its output voltage level is 8 to
13V under no load.
(3) When supplying power from a stabilized power unit, use the power unit with
approx. 3A capacity and choose the output level of 8 to 13V. When connecting it
to this machine, be careful with the polarity.
(4) When using a circuit tester for testing the conductivity, remove all of the dry cells
and the AC adapter from this machine.
4.1.2 After Repairing
After repairing the defective section, be sure to check again (Refer to “3.2 Final Check
and Inspection Mode”.) to see if the repaired section works correctly. Also make a
note of the troubleshooting procedure so that it will be handy should problems occur
in the future.
4.2
Troubleshooting Guide
If any of the following problems occurs:
Go to Section 4.3.
- Tape feeding failure
- Printing failure
- Powering failure (Nothing appears on the LCD
and the backlight does not light.)
- No key entry possible
- Tape cutting failure
- Interface port failure
- LCD indication error or backlight error
- Tape cassette type not identified
Summary of Contents for P-Touch PT-2730
Page 1: ...P touch SERVICE MANUAL MODEL PT 2730 ...
Page 7: ...I 3 Figure 1 1 2 Key Arrangement 1 PT 2730 USA ...
Page 8: ...I 4 Figure 1 1 3 Key Arrangement 2 PT 2730 UK ...
Page 9: ...I 5 Figure 1 1 4 Key Arrangement 3 PT 2730 DEU ...
Page 10: ...I 6 Figure 1 1 5 Key Arrangement 4 PT 2730 FRA ...
Page 78: ...III 58 Figure 3 3 27 Key Depressing Order ...
Page 84: ...III 64 3 4 Troubleshooting for the Test Mode 1 LCD Indication Check mode ...
Page 85: ...III 65 2 Cassette Sensor Switch Check mode ...
Page 86: ...III 66 ...
Page 87: ...III 67 3 Key Check mode ...
Page 88: ...III 68 4 Print Check mode 5 Cut Check mode ...
Page 89: ...III 69 ...
Page 90: ...III 70 6 Encode Reading Check mode ...
Page 93: ...IV 2 4 3 Troubleshooting Flows 1 Tape feeding failure ...
Page 94: ...IV 3 ...
Page 95: ...IV 4 2 Printing failure ...
Page 96: ...IV 5 ...
Page 97: ...IV 6 3 Powering failure Nothing appears on the LCD and the backlight does not light ...
Page 98: ...IV 7 ...
Page 99: ...IV 8 4 No key entry possible 5 Tape cutting failure ...
Page 100: ...IV 9 6 Interface port failure 7 LCD indication error or backlight error ...
Page 101: ...IV 10 8 Tape cassette type not identified ...
Page 102: ...A 1 APPENDIX 1 CIRCUIT DIAGRAMS Main PCB circuit diagram 1 2 ...
Page 103: ...A 2 Main PCB circuit diagram 2 2 ...
Page 104: ...A 3 Key PCB circuit diagram ...
Page 105: ...Sep 2010 SM PT037 ...