Sharp LC-70LE836E Service Manual ▷ View online
LC-70LE835E/RU, 836E/S, 838E
6 – 21
4) Communication failure details (Low-speed blinking: Flashes 3 times + High-speed blinking)
5) Other failure details (Low-speed blinking: Flashes 4 times + High-speed blinking)
Error type
Expression of Central Icon LED
Note: Basically, debug print logs are analyzed or
communication logs are analyzed by a bus monitor.
communication logs are analyzed by a bus monitor.
Initial communication
reception failure
Flashes once
(High speed)
reception failure
Flashes once
(High speed)
H: ON
L: OFF
Initial communication from the main CPU is not received.
(Request for the monitor model No. is not received.)
→ Communication line failure or main CPU start-up failure.
(Request for the monitor model No. is not received.)
→ Communication line failure or main CPU start-up failure.
Start-up confirmation
reception failure
Flashes twice
(High speed)
reception failure
Flashes twice
(High speed)
H: ON
L: OFF
Start-up reason confirmation from the main CPU cannot be
received.
(Startup communication until start-up reason notification com-
mand is not received.)
→ Main CPU start-up failure or monitor microprocessor reception
failure.
received.
(Startup communication until start-up reason notification com-
mand is not received.)
→ Main CPU start-up failure or monitor microprocessor reception
failure.
Regular communica-
tion failure
tion failure
Flashes 3 times
(High speed)
(High speed)
H: ON
L: OFF
Regular communication that is performed at 1 second intervals in
the normal operation is interrupted.
→ Main CPU operation failure or monitor microprocessor
reception failure.
the normal operation is interrupted.
→ Main CPU operation failure or monitor microprocessor
reception failure.
Other communica-
tion failure
tion failure
Flashes 5 times
(High speed)
(High speed)
H: ON
L: OFF
When a request (PM_REQ=H) is sent from the main microproces-
sor, the request command is not output from the main CPU, etc.
→ Main CPU operation failure or monitor microprocessor
reception failure.
sor, the request command is not output from the main CPU, etc.
→ Main CPU operation failure or monitor microprocessor
reception failure.
Error type
Expression of Central Icon LED
Note: Pins are monitor microprocessor pins unless otherwise
specified (IC2001).
specified (IC2001).
Monitor temperature
failure
failure
Flashes once
(High speed)
(High speed)
H: ON
L: OFF
If the panel temperature is 60
°C or more for 15s or more in a row,
CAUTION appears on the OSD (flashes in red in the lower right
screen).
If the panel temperature is 60
screen).
If the panel temperature is 60
°C or more for 25s or more in a row,
error standby is activated.
(MONITOR MAX TEMP on page (12/21) of the adjustment pro-
cess: Change AD value for temperature failure): Thermistor
(MONITOR MAX TEMP on page (12/21) of the adjustment pro-
cess: Change AD value for temperature failure): Thermistor
Main failure
Flashes 3 times
(High speed)
(High speed)
H: ON
L: OFF
Main microprocessor detection error (CPU temperature error, etc.)
Details are displayed on page (1/21) of the adjustment process for
the main microprocessor.
Details are displayed on page (1/21) of the adjustment process for
the main microprocessor.
LC-70LE835E/RU, 836E/S, 838E
7 – 1
LC70LE835E
Service Manual
CHAPTER 7.
MAJOR IC INFORMATIONS
[1] MAJOR IC INFORMATIONS
REF NO
Name
Part Code
Description
[MAIN UNIT]
IC8401
IC8401
RH-iXD287WJQZQ
Flash
This IC is 2048Mbit NAND flash memory.
This IC stores the software data that processes the system of TV such as
the graphic processing, the LCD controls, and backlights etc.
This IC stores the software data that processes the system of TV such as
the graphic processing, the LCD controls, and backlights etc.
IC3303
RH-iXD220WJQZQ
Digital AV decode
Main CPU
Main CPU
This IC is Video Processor & MAIN CPU.
In this IC, the decode processing and the video signal processing are done.
Moreover, OSD is generated here and added to a picture signal.
In this IC, the decode processing and the video signal processing are done.
Moreover, OSD is generated here and added to a picture signal.
IC2001
RH-iXD241WJQZQ
for service
(RH-iXD241WJNJQ)
for service
(RH-iXD241WJNJQ)
UCOM
The monitor microprocessor is intended to communicate with the main CPU
and to operate the system.
It also controls power of the entire system.
and to operate the system.
It also controls power of the entire system.
IC3501/3502
RH-iXD242WJQZQ
DDR
This IC is 2GB DDR3 SDRAM.
This IC operates as a memory of IC3303 (Digital AV decode & Main CPU).
This IC operates as a memory of IC3303 (Digital AV decode & Main CPU).
IC8455
VHiBR24S64F-1Y
64K bit E2PROM
The BR24S64 is a 64Kbit-2-wire (I2C bus type) serial EEPROM that can be
programmed electrically.
This IC stores the menu data and the adjustment value data of adjustment
process mode etc.
The data is given out by commands from the main microprocessor.
programmed electrically.
This IC stores the menu data and the adjustment value data of adjustment
process mode etc.
The data is given out by commands from the main microprocessor.
IC506
VHiM3221EiP-1Y
RS232C-DRIVER
The MAX3221E is a single driver, single receiver RS-232 solution operating
from a single Vcc supply. The RS-232 pins provide IEC G1000-4-2 ESD
Protection. The device meets the requirements of TIA/EIA-232-F and pro-
vides the electrical interface between an asynchronous communication
controller and the serial-port connector. The charge pump and four small
external capacitors allow operation from a single 3V to 5.5V supply.
from a single Vcc supply. The RS-232 pins provide IEC G1000-4-2 ESD
Protection. The device meets the requirements of TIA/EIA-232-F and pro-
vides the electrical interface between an asynchronous communication
controller and the serial-port connector. The charge pump and four small
external capacitors allow operation from a single 3V to 5.5V supply.
IC4402
VHiMT5135AE-1Q
CI controller
DTB-T/C Demodulator
DTB-T/C Demodulator
This is a control IC for PCMCIA cards. This controls information on IC cards
inserted into the PCMCIA card slot (SC4401) or information on software
version upgrade cards saved on flash memories to transfer the data to
CPUs and memories.
inserted into the PCMCIA card slot (SC4401) or information on software
version upgrade cards saved on flash memories to transfer the data to
CPUs and memories.
IC2005
VHiR24002AS-1Y
2K bit E2PROM
This is a 2Kbit-2-wire (I2C bus type) serial EEPROM that can be pro-
grammed electrically.
This IC stores the menu data and the adjustment value data of adjustment
process mode etc.
The data is given out by commands from the main microprocessor.
grammed electrically.
This IC stores the menu data and the adjustment value data of adjustment
process mode etc.
The data is given out by commands from the main microprocessor.
IC1504
VHiSii9387+-1Q
HDMI_Port_Processor
The SiI9387 HDMI port processor is the second generation of HDMI
devices that support revision 1.4 of the HDMI specification.
The main feature is as follows.
1) 5-input, 1-output HDMI port processor.
2) Audio Return Channel that allows an S/PDIF uplink from HDMI sink
devices that support revision 1.4 of the HDMI specification.
The main feature is as follows.
1) 5-input, 1-output HDMI port processor.
2) Audio Return Channel that allows an S/PDIF uplink from HDMI sink
device to an HDMI source available in one reciver port.
3) Integrated TMDS receiver and transmitter cores capable of receiving
and transmitting at 2.25Gbps.
4) Supports video resolutions up to 1080p, 60Hz, 12bit or 720p/1080i,
120Hz,12bit.
5) Receiver fully comply with DVI1.0, HDCP and several optional 3D for-
mats described in the HDMI1.4 specifications.
IC9505
VHiPD720114-1Q
Ethernet Bus Interface
The IC is a USB 2.0 hub device that complies with the Universal Serial Bus
(USB) Specification Revision 2.0 and works up to 480 Mbps. USB 2.0 com-
pliant transceivers are integrated for upstream and all downstream ports.
The IC4 works backward compatible either when any one of the down-
stream ports is connected to a USB 1.1 compliant device, or when the
upstream port is connected to a USB 1.1 compliant host.
(USB) Specification Revision 2.0 and works up to 480 Mbps. USB 2.0 com-
pliant transceivers are integrated for upstream and all downstream ports.
The IC4 works backward compatible either when any one of the down-
stream ports is connected to a USB 1.1 compliant device, or when the
upstream port is connected to a USB 1.1 compliant host.
IC2703
VHiYDA164BZ-1Y
Audio-AMP
This IC is digital audio power amplifier with digital audio interface.
The power-supply voltage is corresponded to A.5V~18V and the maximum
output is 20Wx2ch.
The power-supply voltage is corresponded to A.5V~18V and the maximum
output is 20Wx2ch.
IC1105
(LC-70LE835E,RU
and LC-70LE838E
only)
(LC-70LE835E,RU
and LC-70LE838E
only)
RH-iXC563WJQZY
LNB supply and
control
control
It is IC for amplifying the feeble electric wave sent from satellite broadcast-
ing on the level which can treat a decoder, and changing and processing
signal.
ing on the level which can treat a decoder, and changing and processing
signal.
LC-70LE835E/RU, 836E/S, 838E
8 – 1
LC70LE835E
Service Manual
CHAPTER 8.
OVERALL WIRING/BLOCK DIAGRAM
[1] OVERALL WIRING DIAGRAM
1
2
10
9
7
6
5
4
3
8
J
A
B
C
D
E
F
G
H
I
13
11
19
18
16
15
14
12
17
ޣ
LWޤ
1
80
1
80
Lch: Speaker
Rch: Speaker
POWER Unit
70"
1
41
LCD_CTL Unit
70"
R/C Unit
KEY
Unit
1 5
ޣ
ACޤ
LC-70LE835E,RU: QACCKA055WJPZ
LC-70LE836E,S : QACCBA106WJPZ
LC-70LE838E : QACCKA055WJPZ
MAIN Unit
1
5
1
4
1
micro SD
SC8454
1
3
ޣ
PLޤ
P260
CI card slot
SC4401
TUNER
LC-70LE835E,RU :TU1102
LC-70LE836E,S :
TU1104
LC-70LE838E :
TU1102
HDMI2/PC
Audio
J501
LAN
J9501
HDMI1
SC1503
HDMI2
SC1502
HDMI3
SC1501
USB1
J9502
HDMI4
SC1505
HP/Audio Out
J504
OpticalOut
D527
RS232C
D-SUB 9pin
SC504
ޣ
RCޤ
P2001
ޣ
LWޤ
P2601
ޣ
CIޤ
P2007
ޣ
SPޤ
P2701
ޣ
PDޤ
EXT1(SCART)
SC505
EXT2/3
J511
USB2
J9504
USB3
J9503
1
1
5
1
4
PC(RGB)
SC501
23
1
24
1 4
ޣ
KMޤ
ޣ
RAޤ
1
2
2
1 3
ICON UNIT
ޣ
CIޤ
ޣ
PDޤ
QCNW-M029WJQZ
QCNW-M167WJQZ
QCNW-M034WJQZ
QCNW-M030WJQZ
QCNW-M031WJQZ
QCNW
-M168WJQZ
QCNWN
2731TPZZ
QCNWN
2731TPZZ
To LCD MODULE
4
1
LED_DRIVER_UNIT
ޣ
LAޤ
1
64
1
64
ޣ
IRޤ
IR
TRANSMITTE
R
1
3
ޣ
LAޤ
ޣ
L1ޤ
ޣ
L2ޤ
QCNW-M166WJQZ
QCNWN
2732TPZZ
QCNWN
2732TPZZ
LC-70LE835E/RU, 836E/S, 838E
8 – 2
[2] SYSTEM BLOCK DIAGRAM (LC-70LE835E/RU, 838E)
1
2
3
10
9
7
6
5
4
8
J
A
B
C
D
E
F
G
H
I
13
11
19
18
16
15
14
12
17
zz
IC3303
IXD220WJQZ
MT5395(FHD)
H.264/VC-1
Digital AV decode & Main CPU
ORESET#
SP
I_
FL
ASH
/N
AN
D
Fl
as
h
LVD
SO
U
T
USB_D0
Audioin
DTV/SPDIF
I2C_1(CPU_OS_CLK1/DAT1
)
CP
U_UA
TX
D0
_RS
RGB in
SW_TMDS
SW_TMDS
CV
BS
I2C_0(CPU_OS_CLK0/DAT0
)
MAIN
CPU_ATV_IF+
PS
_O
N
AC
_DET
POWER CIRCUIT
MAIN
D5.6V
D5V
U5V
D3.3V
M1.8V
D1.5V
D1.2V
D1.1V
AT5V
IF1.8V
SAT1.2V
STB3.3V
SD3.3V
CPU_A+1.2V
CIIN+5V
MT5135+1.1
IC2703
SPAMP(2CH)
YDA164
PE
HP/MONI_L/R
I2S(SDATA/LRCLK/BCLK)
Disclete
Mute
Q506
PC/HDMI_LR
PC/HDMI
Audio
(Mini Plug)
ޣ
SPޤ
P2701(5P)
SPEAKER
OPTICALOUT
D527
OPT_OUT
AUDIO_MUTE
27.000MHz
X3301
X'tal
PC(RGB)
SC501
RFIN
UART_CPUTO232C,UART_232CTOCPU
TU_DEMOD_SCL/SDA
(400KHz 3.3V)
J9502
USB1
IC506
RS232CTxRx
M3221EIP
RS-232C
SC504
Bu+3.3V
No.9pin RC Passthrough
IC8455
EEPROM
64kbit
+3.3V
HDMI1(ARC)
SC1503
PC/HDMI2
J501
D-SUB
RGB
Audioout
IC3501
DDR3(1333M)
2Gbit
I2C_0
D_IF-/+
COMP1_IN_L/R
U5V
IC9502
PowerSW
AP2151
OFL1
CPU_OPWM1
IC8401
NANDFLASH
2Gbit
+3.3V
+3.3V
+1.5V
+1.2V
+1.1V
RGB HV
IC1504
HDMI-SW
SII9387
DDC_3
HDMI_3
DDC_4
HDMI_4
+3.3V
HPJack
AUDIOOUT
(Mini Plug)
J504
CPU_OPWM2
HDMI_CEC
IC3502
DDR3(1333M)
2Gbit
PN
L_
POW
Co
mp
on
en
t
COMP1_Y/Pb/Pr
HDMI2
SC1502
HDMI3
SC1501
HDMI4
SC1505
DDC_2
HDMI_2
DDC_1
HDMI_1
IC2601
Spliter
HC2G66D
I2C_0 (400KHz)
CPU
_D
ATMDI_RJ
45_TP/T
N
CPU
DATMDI
R
J
4
5
R
P/
N_TUN_RST
SDI
O
C
M
D/
SDI
O
CL
K
SDI
0㨪
3
IC2701
DSP
(YSS951)
I2C_0(400KHz)
AMP_LRCK/BCLK/MCLK
AMP_DATA_LR
+3.3V
+1.8V
+13V
+3V
J9503
USB3
IC9504
PowerSW
AP2141
USB_D1
J9501
Ethernet
C
PU_UA
TXD
1_UC
O
M
+5V
+5V
+5V
RC,OPC
PNL PO
AC DET
PC/HDMI_LR
COMP1_IN_L/R
PC_VSYNC/HSYNC
PC_R/G/B
PC_R/G/B
PC_VSYNC/HSYNC
PC_R/G/B
OPT_OUT
MONI_HP_L/R
SIF
(400KHz3.3V)
Bu+3.3V
X2701Xtal
VON
PNL_WP
PNL_E
+5V
(100KHz 3.3V)
I2C_1
IC9611
Spliter
HC2G66D
P
PNL I2C EN
L/R_REF
Power
UR13V
I2C_1(100KHz)
PNL_I2C_EN
HPOUT_MUTE
+3.3V
+3.3V
SC8454
MicroSDConnector
TOSHIBA
64GbitMicroSD
+1.2V
N_PER_RST
AMP_PROTECT
SP_MUTE
IC503
AUDIO
_M
U
TE
J9504
USB2
IC9503
PowerSW
AP2181
+5V
IC9505
USB2.0Hub
Controller
PD720114
X9502
Xtal
30MHz
1.5A
0.5A
0.5A
SIF
TU1102
Analog/
DVB-T/C/S
SiTuner
TS_TOUT_CLK/SYNC/VAL/D0- D7
N_TUN_SAT_RST
LR
Component
CVBS
LR
CVBS1_IN
CVBS1_IN_L/R
CVBS1_IN_L/R
EXT2/3
J511
AUDIO_MUTE
SCART
SC505
SC/Y_CVBS2_IN
RED1/C1,GREEN1,BLUE1
RED1/C1,GREEN1,BLUE1
SC1_IN_L/R
SC1_V_OUT
TUNER_L/R_OUT
SC1_V_OUT
TUNER_L/R_OUT
Disclete
Mute
Q502
SLOWSW1,SC1FSW
IC510
CAPLESS VIDEO
AMPwith LPF
NJW1351B
IC507
Select
MM1507XN
+5V
+5V
CV
BS
_Ou
t
AMP HOPP
TUNER_OUTL/R
N_PER_RST
AMP_PROTECT
IC2706
OpAMP
NJM4565V
+13V
IC2704
HP-AMP
AK4201EU
+5V
VSYNC
ILL_LE
D1
,L
ED
3
PA
N
E
L_
O
F
L1
CV
BS
CICard
IC4402
CICont&
DTB-T/CDemod
MT5135AE
CI_CE1/OE/WE/A0
- A14/D0- D7
/IREQ/REG/WAIT/RESET
/IOWR/IORD/VS1/CD1/CD2
TS_CIOUT_CLK/SYNC/VAL/D0- D7
TS_CIIN_CLK/SYNC/VAL/D0 - D7
TU SCL /SDA
MT5135_IN
IF_AGC
X4401Xtal
27MHz
DVBTS_CPUIN_CLK/SYNC/VAL/D0
DVB_SPI_CLE/CLK/DATA
DEMOD_RST
DEMOD_TSCLK/SYNC/VAL/DATA0
+5V
+3.3V
+1.2V
+1.1V
+3.3V
TUN_GAIN_SW
N_TUN_RST
N TUN SAT RS
TUN_GAIN_SW
I2C_2(CPU_OS_CLK2/DAT2
OFL2
IC9610
Spliter
HC2G66D
+3.3
PWM2
I2C_1(100KHz)
AUDIO_MUTE
DVB_IF_AGC
+1.8V
+1.2V
LNB
+1.5V
+5V
HDMI_CEC
IC2003
Buffer
LCX125FT
HD
M
I_
CEC
_I
HD
M
I_
C
EC
_O
Thermister
TH2001
IC2001
R8C/36C
IXD241WJ
SUB MCU
LAMP ER
AC DET
THERMO
SRESET
FL2001
Xtal
20MHz
STB
UART
UCOM_RST
IC2002
Reset
PMREQ
N_SRESET
I2C
32.768kHz
EEPROM_SCL/SDA
IC2005
EEPROM
2kbit
DET_PNL12V
W PROT
X2001
Xtal
SMPOW
PS_O
SMPOWHOLD
MUTE_A_ALL
HDMI_CEC_IN
HDMI_CEC_OUT
UCOM_MODE
MODE
RESET
OR
CPU_TXD_UCOM,CPU_RXD_UCOM
N_SRESET
N_CPU_RST
SMPOWHOLD
C
P
U_UA
RX
D0
_RS
C
PU
_U
ARX
D1
_UC
O
M
IC8451
Buffer
+3.3
IC8452
-3
Selec
t
RC,OPC
RC
RC_CPU
0
1
GND
KEY
R/C
EMBLEM
R/C
OPC
ޣ
CIޤP2007(3p)
ޣ
RAޤ(5p)
ޣ
CIޤ(3p)
RC,OPC
ROM_WP
VCOM_WP
PE
IR_VSYNC
VSYNC(GSP)
GSP
I2C_READY
DET_POW
STBCP
RC
IR_
PA
SS
AMP_MUT
E
N_PER_RST
N_USB_RST
SAT_SCA/SDA
CI_SPI_CLE/CLK/DAT
A
CV
B
S_OUT_MUTE
VGA_SDA/SCL/PWR5V
IC8452
-1
Selec
t
IC8452
-2
Selec
t
1
0
1
0
IC2004
HDMI_
OPT_OUT
SW_TMDS
IC8454 D8457
SMPOWHOLD
D2005 Q2007
ޣ
PDޤ
P9602(24p
)
PS_ON
Q9605
Q2005
LED
+3.3V
Q505
D2711
Q2703
D2701
Q2701
SP_MUTE
HP_MUTE
HP
_M
U
TE
Bu+3.3V
Q2004
Q2002
Bu+3.3V
IC2007
N_MUTE_A_ALL
UCO
LNB_SHORT
ANT+5V
ANT+5V_SW
CPU
L/R_REF
AC_DET_CPU
AC DET
ERROR
PM REQ
LVDSOUT
OFL
OFL1
CPU
+3.3
N_CPU_USB1_FLG
ޣ
LWޤ
P2601(41p
)
TCON_
SDA/SCL
I2C READ
PWM1
Q2603
NC/PWM2
PWM2
DIMMER
STB
ޣ
PLޤ
P2605(4p)
PN
L+
12V
PNL PO
PNL_POW
PNL I2C EN
HDMI_OPT_OU
ILL_LED1,LED3
RC,OPC
Bu+3.3V
ޣ
KMޤ
(4p)
SDA/SCL
T-CON
Q1103
OR
OR
OR
EXT 1
SC505
ERROR
STB
PS_ON
AC DET
PNL_POW
OFL1
IR_VSYNC
PWM1
DET_POW
L/R_REF
L/R_REF
PWM2
I2C READ
ROM_WP
VCOM_WP
PE
SDA/SCL
IR
TRANSMITT
ޣ
IRޤ(3p)
LR_P
ULS
E
LR_P
ULSE
IR_
PA
SS
POW
_S
W
STBY_
P
OW
KEY
KEY1,
K
E
Y2
ޣ
RCޤP2001(15p)
PNL+12V
PNL+12V
ޣ
PLޤ
PNL+12V
UR13V
BU5V
BU5V
UR13V
AMP13V
UR13V
BU5V
ޣ
L2ޤ
ޣ
L1ޤ
OFL
VSYNC(GSP)
ERROR
STB
PNL_POW
SDA/SCL
LED_VCC
ޣ
L2ޤ
ޣ
L1ޤ
ޣ
LAޤ
OFL
VSYNC(GSP)
ERROR
STB
PNL_POW
SDA/SCL
LED_VCC
ޣ
LAޤ
LED+
LED -
ޣ
LW ޤ
ޣ
PDޤ
LED_Driv
e
SDA/SCL
OFL
VSYNC(GSP)
Click on the first or last page to see other LC-70LE836E service manuals if exist.