Circuitry; Power Supply Circuit - Casio UP-370 Service Manual

33

CIRCUITRY

3333

POWER SUPPLY CIRCUIT

The power supply source is a DC 24 V.
U11
VCC
VP
DRIVER
PRINTER
MOTOR
U14
VP
DRIVER
AUTO
CUTTER
POWER SW
VP(+24 V)
DC 24 V
AC
ADAPTOR
U13
VCC
VCC
BUFFER
PRINTER
HVP
HEAD
Q5
FET
U18
REGULATOR
LED DS1
U1
CPU
VCC
VCC3
LATCH
U7
VCC(+5 V) VCC3 (+3.3 V)
U19
REGULATOR
– 7 –
U2
VCC3
ROM
U3. 21
VCC3
RAM
VCC3
OTHER IC