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Block diagram 2
MCU_VCC
Touch Panel
KEY[1,2,3,4]
8 Keys
IR_IN
IR RECEIVER
IR
IR401,IR402
2PCS
FLVFD (5x7 Dots,
VFD_CLK
8 Digits, Icons)
VFD_CONTROL
with COG Driver
VFD_STB
Character ROM
VFD_DATA
MCU RESET
RESET
POWER_EN
DVD_PWR
+12VV
PRE_OUT_L
OP AMP
PRE_OUT_R
Summer
OP AMP
+12VV
Tuner+5V
FM Tuner
MCU_I2C_2
(With RDS
Decode
I2C
MCU_I2C_1
HDMI_TV_HPD
MCU
MPEG_STB
U601
MPEG_CLK
MPEG_DAT
/CS48540_RST
SCP_BSY
SCP_IRQ
9950_INT
9950_RST
MCU_LOAD_DISC+
MCU_LOAD_DISC-
AMP_STB
AMP_MUTE
Level Detection
AMP+25V and Transistor Switch
+12VV
HPF
Class-D
SPK_L_OUT
OP AMP
Amplifier
(50W,6 Ohms)
Fc=150Hz
U803,U806
SPK_R_OUT
AMP_STB (50W,6 Ohms)
AMP_MUTE
LPF
Class-D
OP AMP
Amplifier
SUB_OUT
(100w 3 Ohm)
Fc=150Hz
U803,U806
AMP_STB
AMP+25V
+12VV
Tuner_L
+8V5
Tuner_R
MPEG_R_OUT
MPEG_L_OUT
Tuner_L
EEPROM TU24C02CS2
Volume Control
Tuner_R
Treble/Bass
STB_3V3
Sound Processor
AUX_L
U201
AUX_R
I2C
VCC+3V3
Regulator IC
VCC+1V8
Regulator IC
A+1V8
Regulator IC
+12V
Regulator
12V FAN
+8V5
9V/200mA
DAC+5V
Regulator
+12VA
5V1/200mA
VFD+12V
DC/DC
VFD-28V
Converter
DVD+5V
DVD_PWR
VFD+5V
Tuner+5V
MCU_VCC Converter
USB+5V
HDVCC+5V U301,U302
POWER_EN
STB+3V3 Regulator IC
2-2
+12VA
Buffer OP
DVD+5V
+12VV
Regulator
AMP+25V
12V/200mA
POWER_EN
POWER_EN
DC/DC
+12V
Converter
U301,U302
SMPS
POWER_EN
STB+5V
+5V DC/DC
PRE_OUT_L
PRE_OUT_R
AC CORD
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