System Block Diagram - Sharp LC-40D68UT Service Manual

LC-40D68UT

[2] SYSTEM BLOCK DIAGRAM

SYSTEM BLOCK DIAGRAM
TERMINAL
J
CVBS
INPUT CVBS/LR
L/R
1
Component YPbPr
INPUT
LR
2 L/R
YPbPr
Component
I
CVBS
INPUT
CVBS/LR
3
L/R
Audio-SW
RGB/HDMI
TC4052BT
INPUT
Audio RGB_LR
4/6
(Mini Plug)
H
Audio Out L/R
OPTICAL
OPT_OUT
OUT
G
A5V
TU1101
RF IN Analog/
AFT
Digital
TV_CVBS
Tuner
F
AMP_MUTE
UR12V
E
[SP] STANDBY
IC2701
SP P2701
SP AMP AMP_PROTECT
EXT-SP
YDA148QZ SP_L/R
PCIN_H/V
D-SUB
INPUT
PCIN_R/G/B
RGB
4
+5V
IC602
EEPROM
D
DSUB_UART Q9002
UCOM_RS
Bus SW
INPUT
HDMI 1
5
+5V
IC1611
EEPROM
INPUT
HDMI 2
6
+5V
IC1610
C EEPROM
INPUT
HDMI 3
7
IC1612 +5V
EEPROM
+5V VBUS_ST
IC8003
OverCurr.DET
M32TRST_N
B
BD6538G
USB+5V
Service J8001
EEPROM
USB
A
1 2 3 4
MAIN
A9V
IC503
VCOM_SDA
VCOM_SCL
P2601
+3.3V
IC2601
BUS-SW
+5V_A
HC2G66DP
Mute
I2C_SDA/I2S_SCL
SPDIF
(100KHz)
IC1304
A9V
A5V
A3.3V
TUN_SDA_C5/TUN_SCL_C5 (100KHz 5V)
A9V D3.3V
IC1301
N_LINE_DAC_RST
Disclete
Audio DAC
Mute
AK4341ET
LINE_MCLK/BCLK/DAT/LRCLK
MUTE
I2S
Disclete
Mute
HDMI_MUTE
5 6 7 8
SYNC_DET
BU+3.3V
IC2001
Reset
RST_H8FLS_CPLD
From CPU
WRITE_BUF
Vbrt
P9601
BU+3.3V
IC8454
+3.3V
IC2602 EEPROM IC2004
DAC BU+3.3V 256kbit
M62332FP 7WH126FU
IC9002
I2C_SDA_UCOM
SUB-SW
I2C_SCL_UCOM
HC2G66DP
+3.3V
I2C
+1.8V
TUN_I2C
+1.2V
D_IF in
SIF
AGC
SPDIF
DTV/SPDIF
25.000MHz
IC8001
X8001
X'tal
DTV-C5
I2S
+1.8V
IC8251
Digital AV decode & Main CPU DDR2(800)
512Mb*1
SPOUT_L/R
UART_0
P8001
UART_1 Debug
Connector
H/V
RGB in
N_DBG_RST
N_CPU_RST
HDMIin
RESET
Port0 Port1 Port2 N_SRESET
IC9301
+3.3V 50MHz
IC8451
Serial FLASH
64Mbit
9 10 11 12
7 – 2
PNL+12V
PE
VCOM_SDA,VCOM_SCL
VCOM_WP
P8001
3pin
BU+3.3V
O/S_SET
IC2002
R/L,U/D
I/O
RxD,TxD
R8C/2A STB
Gate
Von
I/O STB_CPU
IXC165WJ
From CPU
IC2007
I2C Monitor Micom
AFT FL2001
A/D 16MHz
X'tal
RxD,TxD
UART_CPU
TH2001
RxD_RS,TxD_RS THERMO
Thermister
UART_RS A/D
ERR_PNL
AC_DET
PS_ON
I/O
I/O
PM_REQ, CBOOTS I/O
N_SRESET
INT0
I/O A/D I/O
BackUp
BU+5V
BU+3.3V
MAIN Von
A9V
ERR_PNL
5V
D3.3V
AC_DET
D1.8V
PS_ON
D1.2V
A5V
UR12V
A3.3V
A1.8V BU5V
POWER CIRCUIT Vbrt
PNL_PWM
From CPU PNL_ON
BU+3.3V
[KM] P2002 (4p) [RA] P2003 (10p)
[KM] P105 (5p) [RA] P102 (10p)
KEY
LED
MENU
R/C
POWER
OPC
INPUT
LED
CHANNEL
VOLUME
13 14 15 16
PANEL
C-PWB
POWER INV
17 18 19