Read Sharp GX-BT3 (serv.man4) Service Manual online
GX-BT7
6 – 2
[2] Voltage And Current Block Diagram
Figure 6-2: VOLTAGE AND CURRENT BLOCK DIAGRAM
12V, 2A
SMPS
DC DC
CONVERTER
SW 5V, 3A
MCU USB_PWR
SW 5V, 2.1A
MCU USB_PWR
TO USB
JACK
UNSW 3.9V
SW 5V
AC
100V~240V
50/60 Hz
IC802
STEP DOWN 3.3V
DC DC
CONVERTER
MCU DC RELAY
MCU DC RELAY
UNSW 5V
TO OTK5262,
BT OP AMP,
RUNNING LEDs
TO POW IC,
LED DRIVER,
APPLE IC
SW 3.3V
SW 12V
UNSW 1.3V
SW 2.3V
LDO 1.3V
MCU DC RELAY
TO
OTK5262
TO OTK5262,
REMOCON,
LEDs,
SPI FLASH
UNSW 3.3V
TO
BLUETOOTH
BLUETOOTH
UNSW 3.9V
TO POWER IC
!
IC804
IC801
IC800
IC803
MOSFET
ICA100
Q802
Q831
CURRENT
LIMITER
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