II - 11
2.2.2 Main PCB
[ 1 ] Block Diagram
Figure 2.2-2 shows a block diagram of the main PCB. The main PCB consists of the
following:
(1) CPU
(2) DC motor driver
(3) Thermal head driver
(4) Oscillation circuit
(5) Solder points
(6) Power supply circuit
(7) Key detector circuit
(8) Voltage detector circuit
(9) Temperature sensor detector
(10) LCD driver
Figure 2.2-2 Block Diagram of Main PCB
(12 characters x 1 row,
with guidance indicators)
LCD driver
DC motor
driver
Thermal
print head
(64 dots
in 180 dpi)
Thermal
head driver
Oscillation
circuit
Power supply circuit
(3-terminal regulator)
AC adapter
Dry cells
Key contacts
Cutter sensor
Key PCB
Voltage detector
circuit
Temperature
sensor detector
Cassette sensor
Main PCB
Internal ROM: 128 KB
Internal RAM: 6 KB
LCD
CPU
MN101EF57G
Key detector
circuit
Solder points
Drive motor
(DC motor)
Содержание PT1090 - P-Touch - Labelmaker
Страница 1: ...SERVICE MANUAL MODEL PT 1090 ...
Страница 7: ...I 3 Figure 1 1 2 Display and Key Arrangement USA version EUROPE version ...
Страница 74: ...A 1 Appendix 1 Main PCB Circuit Diagram NAME CODE MAIN PCB CIRCUIT DIAGRAM PT1090 LW4024001 ...
Страница 75: ...A 2 Appendix 2 Key PCB Circuit Diagram NAME CODE KEY PCB CIRCUIT DIAGRAM PT1090 LW4025 001 ...
Страница 76: ...Aug 2009 SM PT027 Printed in Japan ...