Sharp LC-32HT1U, Service Manual

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21 20
LC-32HT1U LC-32HT1U
8 7 10 9 6 5 4 3 2 1
A
B
C
D
E
F
G
H
17 16 19 18 15 14 13 12 11
SYSTEM BLOCK DIAGRAM
B to B (40)
SC4002
Comp_Cb
Comp_Cr
YCbCr Comp_Y
DIN_H
DIN_V
IC3301
IXB405WJ
Video Processer
YPbPr 16bit
CK,HD,VD
14.318MHz
Xtal
P_UATxD
P_UARxD
SLOW
BUS
LVDS OUT
DTV IN
CVBS1
P3201
(30p
FFC)
HDMI_H
MAIN
AGC,AFT
SP (4p)
SP-J
B to B (80) SC4001
EXT.
SP
Disclete
LPF
Buffer
Y/VOUT1
C/Comp1_Cb
Comp1_Cr
IC3302
DDR
IXB375WJ
128Mbit
AV
to
Main
I/F
(60FFC)
SC3701
80
FFC
80
FFC
IC4002
EEPROM
BR24L64F
POWER
INPUT
CHANNEL
VOL
KEY
CPU
M16C
KM
(5p)
LCD
LCD
PANEL
CN7
(2p)
R/L,U/D
P3203 (6pin
)
I2C
Y/V
C
CVBS2
C
YCbCr
HV
CPU BUS
Data 8bit
Address
CS[3:0],RD#,WR#
BCLK
SCL_A,SDA_A
SCL_TR,SDA_TR
I2C
EEPROM_SCL/SDA
24MHz
Xtal
AGC,AFT,OPC,AVPWB,
KEY1,KEY2,QTEMP
Thermister
TH1002
M1103J03
R/C
LED(3)
OPC
UART
SC1001
(40pin )
R/C
PNL+5V
AVPWB
KEY1,KEY2
A/D(7)
QTEMP
Flash
B515WJ
Mbit
PS_ON
D_POW
PNL-POW
EU_DPOW
+10V
BU+5V
I/O
LED(3)
IC3201
LVDS
Reciever
DS90C386
IC3202
LVDS
Transmitter
DS90C385A
IC4003
CPLD_3
B585WJ
PNL_H
PNL_V
Isoleted BUS
Data 8bit
Address
STB,OFL,OSC
INV+5V
RX_PD
PE (12p)
P1801
IC1014
CPLD_12
Buf
TEMP[3:1],O/S_SET,FRAME
P3202 (7pin
)
POWER CIRCUIT
INV CIRCUIT
BU+3.3
V
+9V_
A
+5V_
A
+5
V
+3.3
V
+2.5V_D
D
+2.5V_T
R
+1.8V_T
R
+1.8V_V
A
+1.8V_V
L
5V
REG
+10V
REG_PNL
INT4
PD (8p)
P1802
+3.3V +1.8V +2.5V
+2.5V
IC3805
Audio SWITCH
NJM2750
IC3800
AV SWITCH
MM1630AQ
INPUT 3
S Video
INPUT 2
Component2
Monitor
Out
Main Y/V
TV
Main
Out
Video1
Video2
Video3
HDMI-Analog
INPUT 1
Component1
LR/Main
Main C/Cb
CVBS
YCVBS
CVBS
LR
YPbPr
DTV/CVBS
Monitor Out
DTV/YCVBS
DVI_LR
AV
OPTICAL
OUT
DA (12p)
IC2501
MSPMSP3440
SIF_1
SC1_Out
IC2700
SOUND DSP
NJU26111
SC1_IN
SC2_IN
DACA_L/R
HDMI_SPDIF
IC2709
SOUND DIT
AK4353
IC2707
SW
LVX125T
I2S_IN
IC2702
A/D DIR DAC
AK4586VQ
SC4_IN SC2_Out
MONO_IN
SIF_2
DAC
MCK
I2S
RX1
D/A
A/D
TX
IC2502
Digital AMP
TA2024
RX2
DTV_SPDIF
Audio
Control
DTV/LR
SP_L/SP_R
RELAY
INPUT 4
HDMI
IC1912
HDMI RX
SII9021
RX_x8
HDMI_YPbPr
HDMI
AUDIO
HDMI_HV
RS232C
Rx/Tx
UPD4721
RS-232C
(D-SUB)
IC1104
VIDEO
0UT SW
M52055
CVBS
UART
IC1102
M62320FP
SDA3,
SCL3
SDA3,
SCL3
SDA_A,SCL_A,I2CEXT
SDA3_3,
SCL3_3
IC2708
I/O
M62320
SDA3_2,
SCL3_2
OPT_CNOUT
AFT,AGC
D.POW
SDA3_3,
SCL3_3
I2C_SDA55,
I2C_SCL55
SDA3_3,
SCL3_3
DS (14p)
I2C
EXT
SDA_A
SCL_A
I2CEXT
Tuner A
(ALPS) Tuner
CVBS
SIF
SYSTEM RESET
RESET
RA (8p)
LED
R/C
OPC
OPC LED
POW_LED_R
POW_LED_G
PA
(12p)
DDC
Main Cr L/R
CVBS
YPbPr
L/R
L/R
Video1
Video2
Video3
IC2507
BA4560
IC1913
IC1106
S
R/C
OPC
LED
O1,O2
IC3808
I/O
M62320
R/C
OPC
AFT,AGC
PWB
Revision
LED(3)
DSP RESET
HOTP_CONT
HDMI_WP
SDA3,
SCL3
SYNC
N_MAIN_OE
N_MAIN_WE0
N_MAIN_CE[1:0]
TX_PD
Buf
PNL_CLK
ERR
Buf
PNL_3.3V
INV+5V
ERR_PNL
IC1003
EEPROM
BR24L08F
AC_DET
P_UATxD
P_UARxD
STBY_POW
STBY_POW
STBY_POW
AC_DET
P_I2CSCL1,P_I2CSDA1
I2C_SCL5,I2C_SDA5
SW
SCL_B,SDA_B
FET
SCL_B_2,SDA_B_2
SCL_B_2,SDA_B_2
Buf
I/O
I/O
DET_PNL5V,DET_10V,DET_D10V
KM
(5p) P1002
HDMI_V
+3.3V_D
POWER
AC
DP (9p)
CN4
(2p)
PA
(20p)
CN5
(2p)
CN6
(2p)
CN7
(2p)
+24V
BU5V
BU18V
24V
AC
10V
BS10v
UR35V
D-POW
3.3V
PNL-POW
EU-D-POW
PE
(12p)
PD
(8p)
UR13V
UR6V
5V
MAIN
PFC INV
SLEEP
PS_ON
I2C_SDA55,
I2C_SCL55
Video4
D/CVBS
DIGITAL
Digital Tuner
TU8001
SD-CARD
SC8701
PH1_Lite
Digital AV decode &
Main CPU
IC8101
CPLD
IC9101
I2C_0
SLOW BUS
Vout
DDR
256Mb*2
IC8301
IC8302
FLASH
128Mb
IC8451
DS
(14p)
SPDIF
Digital
Audio
UART
Demodulator
IC8601
DA
(12p)
I2C
TS
I/O
EEPROM
IC8453
isolate
I2C_1
DAC
IC8801
LR
P1
1(4
p)
P3821
(4p) IC10
89S8253
P12
(3p)
P900
1(3
p)
RJ-11
R/C
B L
DIGITAL Sub