Electronics Specifications; Power Supply (Optional; Main Pcb - Brother TD-2020 Service Manual

1.2 ELECTRONICS SPECIFICATIONS

1.2.1

Power Supply (Optional)

(1) Battery
(2) Battery Yield
(3) Adapter
1.2.2

Main PCB

(1) Block Diagram
Optional
Bluetooth
Optional
WiFi
Optional peeler
sensor
Paper sensor
(Photo transistor)
Paper sensor
(LED, Reflective)
Cover open sensor
Optional touch panel
display unit
Panel PCB
switch x3
LED x2
AC adaptor
25V
RJ45 Ethernet
connector PHY
RJ25
RS-232C
connector
IC
USB host
TD-21xx only
USB miniB
connector
5V
Power ON/OFF
circuit
3.3V DC-DC
convertor
5V DC-DC
convertor
Optional battery base unit
(Li-ion charge circuit,
DC-DC convertor,
thermistor)
Figure 1.2-1 Block Diagram of the Main PCB
Rechargeable Li-ion battery: 14.4V
Continuously printing 2000 labels
(* Under Brother standard environment)
AC adapter (25V)
EEPROM
Reset IC
Xtal 12MHz
Stepping motor
driver circuit
CPU
ARM
Cortec-M3
LPC1830
PCB thermistor
Thermal head
Thermal head
VH control
VH
circuit
Li-ion battery
I - 4
Flash ROM
SDRAM
Stepping motor
VH
thermistor
VH
Main PCB ASSY