Sharp LC-70LE747EN (serv.man2) Service Manual ▷ View online
LC-70LE747E/RU,80LE657E/RU,90LE757E/K/RU
6 – 18
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 (IC2004).
specified (IC2004).
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-70LE747E/RU,80LE657E/RU,90LE757E/K/RU
7 – 1
LC-70LE747E
Service Manual
CHAPTER 7.
MAJOR IC INFORMATIONS
[1] MAJOR IC INFORMATIONS
N
O
O
REF NO
Name
Part Code
Description
[MAIN UNIT]
1
1
IC3103
RH-iXD584WJQZQ
Flash
This IC is 4Gbit 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.
2
IC3301
RH-iXD414WJN1Q
Digital AV decode
Main CPU
Main CPU
This IC is Video Processor and 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.
3
IC2004
RH-iXD515WJN8Q
for service
(RH-iXD241WJQZQ)
for service
(RH-iXD241WJQZQ)
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.
CPU and to operate the system.
It also controls power of the entire system.
4
IC3501/3502/
3503/3504
3503/3504
RH-iXD555WJQZQ
DDR
This IC is 2GB DDR3 SDRAM .
This IC operates as a memory of IC3301 (Digital AV decode & Main
CPU).
This IC operates as a memory of IC3301 (Digital AV decode & Main
CPU).
5
IC2007
VHiRV2402Ai-1Y
2K bit E2PROM
(256-word x 8bit)
(256-word x 8bit)
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 adjust-
ment 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 adjust-
ment process mode etc.
The data is given out by commands from the main microprocessor.
6
IC506
VHiM3221EiP-1Y
RS232C-DRIVER
This 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 Pro-
tection. 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.
single Vcc supply. The RS-232 pins provide IEC G1000-4-2 ESD Pro-
tection. 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.
7
IC3104
VHiRV2464Ai-1Y
2K bit E2PROM
(256-word x 8bit)
(256-word x 8bit)
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 adjust-
ment 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 adjust-
ment process mode etc.
The data is given out by commands from the main microprocessor.
8
IC2601
VHiSii9387A-1Q
HDMI_Port _Processor
This HDMI port processor is the second generation of HDMI port pro-
cessor with HDMI Ethernet Channel(HEC) and Audio Return Chan-
nel(ARC) support on one input port.
• Supports video resolutions up to 1080p, 60Hz, 12bit or 720p/1080i,
120Hz,12bit.
• HDMI,HDCP,and DVI1.0 compatible
cessor with HDMI Ethernet Channel(HEC) and Audio Return Chan-
nel(ARC) support on one input port.
• Supports video resolutions up to 1080p, 60Hz, 12bit or 720p/1080i,
120Hz,12bit.
• HDMI,HDCP,and DVI1.0 compatible
9
IC9505
VHiGL850G3Q-1Q
Ethernet Bus Interface
This is the STT hub solutions which fully coply with Universal Serial Bus
Specification Revision 2.0
Specification Revision 2.0
10
IC1901/1902
VHiYDA176DL-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 maxi-
mum output is 15Wx2ch.
The power-supply voltage is corresponded to A.5V–18V and the maxi-
mum output is 15Wx2ch.
11
IC1703
VHiYSS952QZ-1Y
DSP
This is LSI which has 2 DSP core and FM sound source
12
IC1105
RH-iXD591WJQZY
LNB supply and
control
control
It is IC for amplifying the feeble electric wave sent from satellite broad-
casting
on the level which can treat a decoder, and changing and processing
signal.
casting
on the level which can treat a decoder, and changing and processing
signal.
LC-70LE747E/RU,80LE657E/RU,90LE757E/K/RU
8 – 1
LC-70LE747E
Service Manual
CHAPTER 8.
OVERALL WIRING/SYSTEM BLOCK DIAGRAM
[1] OVERALL WIRING DIAGRAM (LC-70LE747E/RU)
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
㩷㩷
䇼㪣㪮䇽
㪈
㪏㪇
㪈
㪏㪇
㪣㪺㪿㪑㩷㪪
㪪㫇㪼㪸㫂㪼㫉
㪩㪺㪿㪑㩷㪪
㪪㫇㪼㪸㫂㪼㫉
㪧㪦㪮㪜㪩㩷㪬㫅㫀㫋
㪎㪇㩹
㪈
㪋㪈
㪫㪄㪚㪦㪥㩷㪬㫅㫀㫋
㩿㪣㪚㪛㪶㪚㪫㪣㩷㪬㫅㫀㫋㪀
㪎㪇㩹
㪩㪬㪥㪫㪢㪋㪍㪌㪏㪫㪧㪱㪱
㪩㪆㪚㩷㪬㫅㫀㫋
㪢㪜㪰
㪬㫅㫀㫋
㪬㫅㫀㫋
㪈㩷㩷㩷㪌
䇼㪘㪚䇽
㪣㪚㪄㪎㪇㪣㪜㪎㪋㪎㪜㪃㪩㪬㪑㩷
㩷㪨㪘㪚㪚㪢㪘㪇㪌㪌㪮㪡㪧㪱
㪈㩷㩷㩷㪋
䇼㪢㪤䇽
䇼㪩㪘䇽
1
2
23 24
㪈㩷㩷㪊
㪠㪚㪦㪥㩷㪬㪥㪠㪫
䇼㪚㪠䇽
䇼㪧㪛䇽
㪨㪚㪥㪮㪄㪥㪌㪐㪋㪮㪡㪧㪱
㪨㪚㪥㪮㪄㪥㪌㪐㪌㪮㪡㪧㪱
㪨㪚㪥㪮㪄㪤㪇㪊㪇㪮㪡㪨㪱
㪨㪚㪥㪮㪄㪥㪌㪐㪐㪮㪡㪧㪱
㪨㪚㪥㪮㪥
㪉㪎㪊㪈㪫㪧㪱㪱
㪨㪚㪥㪮㪥
㪉㪎㪊㪈㪫㪧㪱㪱
㪫㫆㩷㪣㪚㪛㩷㪤㪦㪛㪬㪣㪜
㪋㩷㩷㩷㩷㩷㪈
䇼㪙㪫䇽
㪙㫃㫌㪼㫋㫆㫆㫋㪿
㪬㫅㫀㫋
㪈
㪊
㪊
䇼㪣㪈䇽
㪤㪘㪠㪥
㪈
㪌
㪌
㪈
㪋
㪈
㪈
㫄㫀㪺㫉㫆㩷㪪㪛
1 2
㪈
㪌
㪌
㪚㪠㩷㪺㪸㫉㪻㩷㫊㫃㫆㫋
㪫㪬㪥㪜㪩
㪣㪘㪥
㪟㪛㪤㪠
㪈
㪈
㪟㪛㪤㪠
㪉
㪉
㪟㪛㪤㪠
㪊
㪊
㪬㪪㪙
㪈
㪈
㪟㪛㪤㪠
㪋
㪋
㪟㪧㪆
㪘㫌㪻㫀㫆㩷㪦㫌㫋
㪘㫌㪻㫀㫆㩷㪦㫌㫋
㪩㪪㪉㪊㪉㪚
㪛㪄㪪㪬㪙
㪐㫇㫀㫅
䇼㪩㪚䇽
䇼㪣㪭䇽
䇼㪙㪫䇽
䇼㪪㪧䇽
䇼㪧㪛䇽
㪜㪯㪫㪈㩿㪪㪚㪘㪩㪫㪀 㪜㪯㪫㪉㪆
㪊
㪬㪪㪙
㪉
㪬㪪㪙
㪊
㪈
㪈
㪌
㪌
㪧㪚㩿㪩㪞㪙㪀
㪉㪊
㪈
㪉㪋
㪈
㪉㪋
䇼㪪㪙䇽
㪬㪪㪙㩷㩷㪽㫆㫉
㫆㫇㪼㫉㪸㫋㫀㫆㫅㩷㪤㪸㫅㫌㪸㫃
㫆㫇㪼㫉㪸㫋㫀㫆㫅㩷㪤㪸㫅㫌㪸㫃
㪨㪚㪥㪮㪄㪥㪌㪐㪋㪮㪡㪧㪱
㪨㪚㪥㪮㪄㪥㪍㪉㪇㪮㪡㪱㪱
LC-70LE747E/RU,80LE657E/RU,90LE757E/K/RU
8 – 2
[2] OVERALL WIRING DIAGRAM (LC-80LE657E/RU)
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
250WJZZ
-
N593WJQZ
-
N593WJQZ
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