II - 13
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 the Main PCB
- 12 characters TN LCD
- 3.0V drive
Chip On Glass LCD Driver
FPC Connector
DC motor drive circuit
Cassette sensor
Cutter sensor
Thermal head drive circuit
Battery voltage detector
Environmental temperature
detector for Print Control
Thermal head
- 180 dpi and 64 dots
Power source control circuit
- Power source
- AAA-size alkaline battery, Ni-MH battery 6
- AC adapter (only H105)
* North America: AD24ES US
* Europe: AD-24(E), AD-24ES EU
- Three terminal regulator: 3.3BV
- Internal ROM: 192 KBytes
- Internal RAM: 16 KBytes
- Package 80 pin LQFP
LCD
Tape feed motor
- DC motor
Keyboard
IN 8, OUT 7 + power
source ON/OFF
LCD_SI,
LCD_SCL
Control Signals
(LCD_RES, LCD_CON, AB[0])
2
3V ON/OFF
3
2
3
3.3VCC
3.3VCC
VBT
+3.3BV
+3.3BV
AD Port
AD Port
3.3VCC
VBT
3.3VCC
VAD
IN, OUT
16
ON/OFF
VAD
CPU
Summary of Contents for P-Touch PT-H100
Page 1: ...SERVICE MANUAL MODEL PT H100 H105 ...
Page 7: ...I 3 Figure 1 1 2 Display and Key Arrangement USA version EUROPE version ...
Page 79: ...A 2 NAME CODE LAA711 001 MAIN PCB CIRCUIT DIAGRAM PT H100 2 2 ...
Page 80: ...A 3 Appendix 2 Key PCB Circuit Diagram NAME CODE KEY PCB CIRCUIT DIAGRAM PT H100 LAA712 001 ...
Page 81: ...Jul 2012 SM PT051 ...