Brother QL-1060N Service Manual page 17

<For 220/230/240V model>
Oscillator circuit
7.6MHZ
Photo sensor for
detecting top edge
of media
Cutter home position
sensor
Media type sensor circuit
6 selector switches
FEED, CUT button
Green LED, Red LED
Cover open sensor
Power supply
ON/OFF button
Key PCB
Cover left sensor
Fan motor unit
Lock
signal
+8V output
220/230/240V
AC power supply
Fig. 2.3-2 Block Diagram of Main PCB (For 220/230/240V model)
CPU
850E/MA3
(NEC)
ROM: 256KB
RAM: 16KB
INT
Switching
Power supply
power supply
shunt PCB
II- 9
EEPROM
(4Kbit)
FROM 64Mbit
(Max. 64Mbit)
16bit bus
SDRAM 128Mbit
(Max. 128Mbit)
USB IC
D12
LAN IC
LAN 9115
RS232C
IC
DC motor
Normal/reverse
drive circuit
Step motor
Bipolar constant current
drive circuit
Thermal head
temperature detect circuit
+25V power supply
voltage detect circuit
+25V output
+25V
(for drive power supply)
output
ON/OFF
current control signal
+2.5V power
supply circuit
+3.3V power
supply circuit
+5V output
USB
IF
LAN
IF
RS232C
IF
DC motor
for full cut
For tape feed
driving
Thermal head
+2.5V output
(for CPU power supply)
+3.3V output
(for logic power supply)