II
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2.2
Outline of Control Electronics
2.2.1
Configuration
Figure 2.2-1 shows a block diagram of the control electronics of this machine. The control
electronics consists of two PCBs (main PCB and key PCB), an LCD, motor, thermal print
head, tape cassette sensor (switch ASSY) and cutter sensor.
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Main PCB
This PCB manages all the components including an LCD, motor and thermal print head.
For electronic devices on the main PCB, refer to Section 2.2.2.
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Key PCB
This PCB holds an AC jack.
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LCD
The LCD is 8 characters wide by one row high and it has 11 guidance indicators.
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Motor
The DC motor is a power source to advance tape and ink ribbon.
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Thermal print head
This is a thick-film thermal print head which integrates a heat generator (consisting of 64
heating elements vertically aligned in 180 dpi) and driver circuitry.
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Tape cassette sensor (switch ASSY)
According to the states of the three sensor switches on this sensor, the CPU can identify
the tape width and type of the tape cassette loaded.
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Cutter sensor
Pressing the cutter lever turns on this sensor, signaling that the cutter is driven. If this
sensor is turned on during printing or tape feeding, the CPU immediately stops the motor
to prevent tape jamming.
Summary of Contents for PT 1000 - P-Touch 1000 B/W Thermal Transfer Printer
Page 1: ...SERVICE MANUAL MODEL PT 1000 1050 GL100 ...
Page 7: ...I 3 USA version Figure 1 1 2 1 Display and Key Arrangement ...
Page 8: ...I 4 EUROPE version Figure 1 1 2 2 Display and Key Arrangement ...
Page 9: ...I 5 UK version GL 100 Figure 1 1 2 3 Display and Key Arrangement ...
Page 21: ...II 10 Figure 2 2 1 Configuration of the Electronic Part ...
Page 28: ...III 4 Figure 3 1 4 Separating the Bottom Cover from the Upper Cover ...
Page 45: ...IV 2 4 3 Troubleshooting Flows 1 Tape feeding failure ...
Page 46: ...IV 3 ...
Page 47: ...IV 4 2 Printing failure ...
Page 48: ...IV 5 ...
Page 49: ...IV 6 3 Powering failure Nothing appears on the LCD ...
Page 50: ...IV 7 4 No key entry possible ...
