III-8
[ 2 ]
Power saving circuit
Fig. 3.2-10 shows a circuit diagram of the power saving circuit. If you power off the machine with
the power On/Off key or you make no key entry for approx. 5 minutes, the CPU turns P11 high to
cut off the Vcc (which normally would feed power to the logic circuits except the CPU). In this
way, the CPU enters the sleep mode where oscillation stops so as to feed no clock to the CPU.
In the sleep mode, the +5BV feeds power only to the CPU.
To cancel the power saving mode (automatic powering-off mode) and resume the normal
operation mode, press the power On/Off key.
Fig. 3.2-10 Power Saving Circuit
Summary of Contents for P-touch PT-1100
Page 2: ...SERVICE MANUAL MODEL PT 1100 1130 1170 1180 11Q PT 1250 1160 ST 1150 Heavy Duty LabelerTM ...
Page 5: ...CHAPTER I SPECIFICATIONS ...
Page 9: ...I 3 Fig 1 1 2 Key Arrangement 1 ...
Page 10: ...I 4 Fig 1 1 2 Key Arrangement 2 ...
Page 11: ...I 5 Fig 1 1 2 Key Arrangement 3 ...
Page 13: ...CHAPTER II MECHANISMS ...
Page 50: ...35 II 2 3 4 Troubleshooting Flows 1 Tape feeding failure ...
Page 51: ...36 II ...
Page 52: ...37 II 2 Printing failure ...
Page 53: ...38 II ...
Page 54: ...39 II 3 Powering failure Nothing appears on the LCD ...
Page 55: ...40 II 4 No key entry possible ...
Page 56: ...CHAPTER III ELECTRONICS ...
Page 75: ...III 17 3 3 3 Troubleshooting Flows 1 Tape feeding failure 2 Printing failure ...
Page 76: ...III 18 3 Powering failure Nothing appears on the LCD ...
Page 77: ...III 19 4 Abnormal LCD indication ...
Page 78: ...III 20 5 No key entry possible 6 Tape cassette type not identified ...
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