Attention: This service manual is only for service personnel to take reference with. Before
servicing please read the following points carefully.
Safety precautions
1. Instructions
Be sure to switch off the power supply before replacing or welding any components or
inserting/plugging in connection wire. Anti static measures must be taken (throughout the entire
production process!):
a) Do not touch here and there by hand at will;
b) Be sure to use anti static electric iron;
c) It’s necessary for the welder to wear anti static gloves.
Please refer to the part list before replacing components that have special safety requirements.
Do not replace with different components with different specs and type at will.
2. LCD servicing precautions
2.1 Screens are different from one model to another and therefore not interchangeable. Be sure to
use the screen of the original model for replacement.
2.2 Be sure to take proper measures in protecting yourself and the machine when testing
the system in the course of normal operation or right after the power is switched off. Please do not
touch the circuit or the metal part of the module that is in operation mode. Relevant operation is
possible only one minute after the power is switched off.
2.3 Do not use any adapter that is not identical with the TV set. Otherwise it will cause fire or
damage to the set.
2.4 Never operate the set or do any installation work in bad environment such as wet bathroom,
laundry, kitchen, or nearby fire source, heating equipment and devices or exposure to sunlight etc.
Otherwise bad effect will result.
2.5 If any foreign substance such as water, liquid, metal slices or other matters happens to fall into
the module, be sure to cut the power off immediately and do not move anything on the module lest
it should cause fire or electric shock due to contact with the high voltage or short circuit.
2.6 Should there be smoke, abnormal smell or sound from the module, please shut the power off
at once. Likewise, if the screen is not working after the power is on or in the course of operation,
the power must be cut off immediately and no more operation is allowed under the same
condition.
2.7 Do not pull out or plug in the connection wire when the module is in operation or just after the
power is off because in this case relatively high voltage still remains in the capacitor of the driving
circuit. Please wait at least one minute before the pulling out or plugging in the connection wire.
2.8 When operating or installing LCD please don’t subject the LCD components to bending,
twisting or extrusion, collision lest mishap should result.
2.9 As most of the circuitry in LCD TV set is composed of CMOS integrated circuits, it’s necessary
to pay attention to anti statics. Before servicing LCD TV make sure to take anti static measure and
ensure full grounding for all the parts that have to be grounded.
2.10 There are lots of connection wires between parts behind the LCD screen. When servicing or
moving the set please take care not to touch or scratch them. Once they are damaged the screen
Page 4
would be unable to work and no way to get it repaired.
If the connection wires, connections or components fixed by the thermotropic glue need to
disengage when service, please soak the thermotropic glue into the alcohol and then pull them
out in case of dagmage.
2.11 Special care must be taken in transporting or handling it. Exquisite shock vibration may lead
to breakage of screen glass or damage to driving circuit. Therefore it must be packed in a strong
case before the transportation or handling.
2.12 For the storage make sure to put it in a place where the environment can be controlled so as
to prevent the temperature and humidity from exceeding the limits as specified in the manual. For
prolonged storage, it is necessary to house it in an anti-moisture bag and put them altogether in
one place. The ambient conditions are tabulated as follows:
Temperature Operation range +5 ~ +35 oC
Storage range -20 ~ +60 oC
Humidity Operation range 20% ~ 80%
Storage range 10% ~ 90%
2.13 Display of a fixed picture for a long time may cause a permanent after-image on the screen,
as commonly called “ghost shadow”. The degree of the after-image varies with the maker of LCD
screen. This phenomenon doesn’t represent failure. This “ghost shadow” may remain in the
picture for a period of time (several minutes). But when operating it please avoid displaying still
picture in high brightness for a long time.
3. Installation precautions
3.1 The front panel of LCD screen is made of glass. When installing it please make sure to put it in
place.
3.2 For service or installation it’s necessary to use specified screw lest it should damage the
screen.
3.3 Be sure to take anti dust measures. Any foreign substance that happens to fall down between
the screen and the glass will affect the receiving and viewing effect
3.4 When dismantling or mounting the protective partition plate that is used for anti vibration and
insulation please take care to keep it in intactness so as to avoid hidden trouble.
3.5 Be sure to protect the cabinet from damage or scratch during service, dismantling or
mounting.
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Adjustment Instructions
1 Safety Instructions
1.1 Power supply must be cut off when replacing or welding any component or inserting / pulling out
connective lines;
1.2 Anti-electrostatic measures must be carried out during the whole producing processes!
a) Do not touch IC by hands at will;
b) Use anti-electrostatic iron;
c) Welder must wear anti-electrostatic glove;
1.3 Replacing any component with special safety requirement must refer to component list without
changing its specification and model at will.
1.4 Power supply voltage must be ~(100-240) V±10% 50 Hz.
2 Adjustment Equipments
VG-848 (YPbPr, VGA signal generator)
VG-849 (HDMI signal generator)
CA-210
3 Adjustment Processes
3.1 Power voltage test
According to the wiring diagram ‘9232ME7001JL’, connect power board assembly, data
processing assembly, IR/Key board assembly correctly, supply with power, press button standby
to turn on the TV set.
3.11 Model LC-32MEXX
Test voltage of X301 each pin on power board in turn shown as Table 1:
Table 1 Voltage of X301 each pin
X301
Min. (V) 0 11.3 0 4.85 4.85 4.85 3.25 4.85
Typical(V) 0 12.0 0 5.00 5.00 5.00 3.30 5.00
Max. (V) 0 12.6 0 5.35 5.35 5.35 3.35 5.07
Pin 1
2、3 4、5
6 7 8 9 10
3.12 Model LE-32/42MEXX and LC-39/46/50MEXX
Test voltage of X301 each pin on power board in turn shown as Table 2:
Table 2 Voltage of X301 each pin
X301
Min. (V) 11.3 0 11.3 0 4.85 4.85 4.85 3.25 4.85
Typical(V) 12.0 0 12.0 0 5.00 5.00 5.00 3.30 5.00
Max. (V) 12.6 0 12.6 0 5.35 5.35 5.35 3.35 5.07
Pin 1、2 3、4 5、6 7、8
9 10 11 12 13
3.13 Model LE-46/55MEXX
Test voltage of X301 each pin on power board in turn shown as Table 3:
Table 3 Voltage of X301 each pin
X301
Min. (V) 24.3 0 11.3 0 4.85 4.85 4.85 3.25 4.85
Pin 1、2 3、4 5、6 7、8
9 10 11 12 13
Page 6
Typical(V) 24.0 0 12.0 0 5.00 5.00 5.00 3.30 5.00
Max. (V) 23.6 0 12.6 0 5.35 5.35 5.35 3.35 5.07
3.14 Model LC-29ME70/LE-32ME77 for domestic market, all-in-one model LE-29/32/39ME83,
model LC-24ME70/LC-24ME77
Test voltage of X301 each pin on power board in turn shown as Table 3(a):
Table 3(a) Voltage of X301 each pin
X301
Min. (V) 11.3 0 3.25 4.85 4.85
Typical(V) 12.0 0 3.30 5.00 5.00
Max. (V) 12.6 0 3.35 5.35 5.35
Pin 1、2 3、4
5 6 7
3.2 Adjustment flow as Fig. 1:
Check if DDC、FLASH has been written?
Produce data processing board on line.
General assembly and combined adjustment
White balance adjustment
Input central signal, check TV function (omitted channel, analog
parameters control, etc. ), check earphone, speakers output.
Input AV signal, check relevant functions.
Input HDMI signal (mode), check YPbPr functions.
Input VGA signal, check display and all functions
(such as analog parameter), H/V center, etc..
Input HDMI signal, check display and all functions
(such as analog parameter), H/V center, etc..
Input USB signal, check relevant functions.
Default settings before shipment
Check accessory and packing
Fig. 1 Adjustment flow chart
Page 7
4 Adjustment Instructions
4.1 The unit adjustments
4.1.1 According to the wiring diagram “9232ME7001JL”, connect power/backlight board assembly,
data processing assembly, IR/Key board assembly correctly, supply with power, turn on the TV set.
Check display.
4.1.2 Factory menu instruction
a) Press key “INPUT”, press digital keys “2、5、8、0” in turn to enter into primary factory menu;
b) Press keys “” and “” to move cursor to each page of primary factory menu, then press
key “ENTER” to enter into submenu page;
c) Press keys “” and “” to move cursor upward or downward within any one page;
d) Press keys “” and “” to do adjustment when move cursor to one item;
e) Press key “MENU” to exit submenu page of factory menu sequentially; The cursor must
focus on the first item when pressing key “MENU” to exit some of the submenu page.
f) Factory menu item: Aging Mode to be used for aging the TV set when the option is “On”;
press any key on key board to exit aging mode during the aging process;
g) Factory menu item: Othersetting → Power on mode:
‘On’: to turn on the TV set with one step;
‘Off’: to turn on the TV set with two steps;
‘Last’: to keep the last power-off state when power on the TV set again;
4.2 White balance adjustment
4.2.1 Before adjustment
The TV set should be working above 30 minutes to be in a stabler state before adjustment. Use
CA-210 BBY channel to adjust white balance;
a) VGA channel adjustment
Input square signal (VG848 Timing: 854 (VESA 800
×600/60 Hz), enter into user menu
SETTING→Computer Settings→ AUTO ADJUST to make picture display fully; then inputsignal
(VG848 PAT: 914), enter into factory menu page ADC ADJUST to perform AUTO ADC until the
prompt “SUCCESS” displays.
b) YPbPr channel adjustment
Input signal (VG848 Timing: 968 (480i/60 Hz),PAT: 918 (100% color bar + gray scale)) ,
enter into factory menu page ADC ADJUST to perform AUTO ADC until the prompt “SUCCESS”
displays.
c) Only Normal color temperature need adjusting for the model. Chromatic coordinates of bright
scale must be set as (△X=±5, △Y=±5), chromatic coordinates of dark scale must be set as (△X=±10, △Y=±10). Chromatic coordinates of each model are listed as Table 4:
Table 4 Chromatic coordinates of each model
WARM NORMAL COOL
6500K(313、329) 9300K(285、293) 12000K(272、278)
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d)BBY:Insignia-Dynex TV Spec Part of chromatic coordinates are listed as Fig. 2:
Fig.2 Chromatic coordinates of white balance
4.2.2 Four groups of white balance adjustments
4.2.2.1 DVI channel adjustment (HDMI,USB channel with the same adjustment method of this one)
Input signal (VG848 Timing: 854,PAT: 921 (16-gray-step)), enter into factory menu page Color
Temp, fix item G-GAIN, adjust items R-GAIN、B-GAIN to set chromatic coordinates of the reversed
th
scale as the date of NORMAL; fix item G-OFFSET, adjust items R-OFFSET、B-OFFSET to set
4
chromatic coordinates of the 4
th
scale as the date of NORMAL; adjust items R-GAIN、B-GAIN and
R-OFFSET、B-OFFSET repeatedly as above until chromatic coordinates of both gray scales are the
date of NORMAL;
Check if chromatic coordinates of WARM is (313、329), if not, adjust items R GAIN / B GAIN /
R OFF/ B OFF to be up to the requirements and then save the date.
Check if chromatic coordinates of COOL is (272、278), if not, adjust items R GAIN / B GAIN /
R OFF/ B OFF to be up to the requirements and then save the date.
4.2.2.2 VGA channel adjustment
Input signal (VG848 Timing: 854,PAT: 921 (16-gray-step)), enter into factory menu page Color
Temp, fix item G-GAIN, adjust items R-GAIN、B-GAIN to set chromatic coordinates of the reversed
th
scale as the date of NORMAL; fix item G-OFFSET, adjust items R-OFFSET、B-OFFSET to set
4
chromatic coordinates of the 4
th
scale as the date of NORMAL; adjust items R-GAIN、B-GAIN and
R-OFFSET、B-OFFSET repeatedly as above until chromatic coordinates of both gray scales are the
date of NORMAL;
Check if chromatic coordinates of WARM is (313、329), if not, adjust items R GAIN / B GAIN /
R OFF/ B OFF to be up to the requirements and then save the date.
Check if chromatic coordinates of COOL is (272、278), if not, adjust items R GAIN / B GAIN /
R OFF/ B OFF to be up to the requirements and then save the date.
4.2.2.3 YPbPr channel adjustment
Input signal (VG848 Timing: 968,PAT: 921 (16-gray-step)), enter into factory menu page Color
Temp, fix item G-GAIN, adjust items R-GAIN、B-GAIN to set chromatic coordinates of the reversed
th
scale as the date of NORMAL; fix item G-OFFSET, adjust items R-OFFSET、B-OFFSET to set
4
chromatic coordinates of the 4
th
scale as the date of NORMAL; adjust items R-GAIN、B-GAIN and
R-OFFSET、B-OFFSET repeatedly as above until chromatic coordinates of both gray scales are the
date of NORMAL;
Check if chromatic coordinates of WARM is (313、329), if not, adjust items R GAIN / B GAIN /
R OFF/ B OFF to be up to the requirements and then save the date.
Check if chromatic coordinates of COOL is (272、278), if not, adjust items R GAIN / B GAIN /
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R OFF/ B OFF to be up to the requirements and then save the date.
4.2.2.4 AV channel adjustment(TV channel with the same adjustment method of this one)
Input signal (VG848 Timing: 969,PAT: 921 (16-gray-step)), enter into factory menu page Color
Temp, fix item G-GAIN, adjust items R-GAIN、B-GAIN to set chromatic coordinates of the reversed
4th scale as the date of NORMAL; fix item G-OFFSET, adjust items R-OFFSET、B-OFFSET to set
th
chromatic coordinates of the 4
th
scale is about 10nit; adjust items R-GAIN、B-GAIN and R-OFFSET、B-OFFSET repeatedly as
4
scale as the date of NORMAL and make sure the brightness of the
above until chromatic coordinates of both gray scales are the date of NORMAL;
Check if chromatic coordinates of WARM is (313、329), if not, adjust items R GAIN / B GAIN /
R OFF/ B OFF to be up to the requirements and then save the date.
Check if chromatic coordinates of COOL is (272、278), if not, adjust items R GAIN / B GAIN /
R OFF/ B OFF to be up to the requirements and then save the date.
5 Function check
5.1 TV functions
Input central signal to RF port, enter into menu Channel first, then search for programs
automatically and check if any program is omitted; check the speakers output and the display.
5.2 AV port
Input AV signal, check the sound and the picture.
5.3 YPbPr/YCbCr port
Input YUV signal from VG848 with formats listed as Table 5 respectively, check the sound and
5.4 VGA port
Input VGA signal from VG848 with formats listed as Table 6 respectively, check the sound and
the display. If H./V. of picture displays abnormally, enter into user menu Setup→VGA Setting→ AUTO to perform calibration automatically to display the picture fully.
Page 10
Table 6 VGA received signal formats
No. Definition
1 720×400@70 Hz 31.47 70.08 28.32 VGA-T
2 640×480@60 Hz 31.50 60.00 25.18 VGA
3 640×480@72 Hz 37.90 72.00 31.50 VESA
4 640×480@75 Hz 37.50 75.00 31.50 VESA
5 800×600@56 Hz 35.16 56.25 36.00 VESA
6 800×600@60 Hz 37.90 60.00 40.00 VESA Guidelines
7 800×600@75 Hz 48.08 75.00 50.00 VESA
8 1024×768@60 Hz 48.40 60.00 65.00 VESA Guidelines
9 1024×768@70 Hz 56.50 70.00 75.00 VESA
10 1024×768@75 Hz 60.00 75.00 78.75 VESA
11 1280×768@75 Hz 60.30 75.00 102.25 VESA
12 1360×768@60 Hz 47.70 60.00 85.5 VESA
13 1280×1024@60 Hz 64.00 60.00 108.0 VESA (FHD panel)
14 1280×1024@75 Hz 80.00 75.00 135.0 VESA (FHD panel)
5.5 HDMI port
Input HDMI/DVI signal from VG849 with formats listed as Table 5&6 respectively, check the
sound and the display.
5.6 USB port
Input USB signal, check the sound and the display.
6 Presetting before shipment
Enter into factory menu, select items Other Setting→SHIPMENT to perform presetting before
shipment automatically . The unit only responds the command ‘shut down’ after presetting. The step of
presetting before shipment must be done after factory adjustments completed. Main steps of
SHIPMENT are listed as below:
6.1 BBY Models for domestic market
1)Display guided menu of initial setup when turning on the TV set;
2)Reset default date of picture mode (TV channel picture mode: STANDARD, TV channel color
temperature: NORMAL; VGA channel picture mode: STANDARD, VGA channel color temperature:
WARM; other channels picture mode: COLORFUL, other channels color temperature: COOL); reset
sound mode as SANDARD and the volume as 20;
3)Clear up the date of channel and favorite list;
4)Menu language: simplified Chinese
6.2 SANYO Models for Middle East market
(1)Reset default date of picture mode (TV channel picture mode: ST ANDARD, TV channel color
temperature: NORMAL; VGA channel picture mode: STANDARD, VGA channel color temperature:
WARN; other channels picture mode: COLORFUL, other channels color temperature: COOL); reset
sound mode as SANDARD and the volume as 20;
(2)Clear up the date of channel and favorite list;
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(3)Menu language: English
6.3 Models for domestic market or South Africa market
(1) Reset default date of picture mode (Picture mode of all channels: STANDARD, color
temperature of all channels: NORMAL, VGA channel color temperature: WARN ); reset sound mode
as SANDARD and the volume as 20;
(2)Clear up the date of channel and favorite list;
(3)Menu language: simplified Chinese for domestic market
English for South Africa market
7 Software Upgrading Instructions as Table 7
Table 7 Software Upgrading Instruction
Location Part No. Part model Software functions
N102 5272532007 EN25Q32B-104HIP Main Software Yes Upgrade with ALL100, etc.
N102 52725320 07 EN25Q32B-104HIP HDCP KEY Yes Upgrade with ALL100, etc.
Upgrading
before SMT
Upgrading method
8 Software (FALSH) upgrading methods
8.1 Execute ALL-100 upgrading file GSEEP.EXE;
8.2 Click menu Device, select FLASH model EN25Q32B shown as Fig. 3;
Note: real FLASH model depends on the real material, models shown by Fig. 3 are just for illustration.
Fig. 3 Device model selection interface
8.3 Click toolbar AUTO, enter into interface AUTO, make sure to tick off option Config when
upgrading Flash. Please refer to Fig. 4.
Page 12
Fig. 4 AUTO upgrading interface
8.4 Click option Config Setting in AUTO interface, set option Protect as All Protect, and set
option SRWD as Enable, then click ‘OK’ to complete write-protect setup. Make sure the above both
options are reset when executing ALL-100 upgrading software again after exiting it. If there is no
option SRWD, please upgrade ALL-100 upgrading software. Please refer to Fig. 5.
Fig. 5 Config Setting interface
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9 HDCP KEY upgrading methods
9.1 Connect to upgrading device;
9.2 Execute file ISP_ToolV1.04.exe which interface is shown as Fig. 6;
Location address:
0x3B0000
Fig. 6 ISP tool
9.3 Click button “Open” to load encrypted KEY file;
9.4 Click button “Run” to begin KEY upgrading. upgrading information will display in the information
frame after upgrading completed.
10 Software upgrading methods
10.1 Software upgrading methods from USB port (it is advise to use the method preferentially)
a) Copy file offered by RD department to the root directory of U disk. Note that the file name must
be MERGE.bin and be kept in the root directory of U disk.
b) Insert U disk to USB port, switch to non-USB channel (such as TV, AV channel, etc.), enter
into factory menu, choose “software upgrading USB”, then click “OK” to begin upgrading;
c) Click “Confirm upgrading” with left button when upgrading confirmation menu displays. Note
that U disk must not be pulled out or the unit must not be cut off during the upgrading process.
10.2 ISP(connected by VGA)upgrading method
a) Connect the unit and PC with upgrading connected board and VGA cable.
Information frame
b) Open upgrading tool ISP_Tool(V4.5.0.5), select label Device to make configuration within red
frame shown as Fig. 7;
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Fig. 7 Device configuration dialog
c) Select label Config to make configuration shown as Fig. 8;
Fig. 8 Config configuration dialog
Note: I2C speed is set as about 60% commonly and should not be set too fast. If it is not easy to
connect successfully, please set I2C speed slower.
d) Select label Read, open bin file whose file path can display completely in the label Auto,
e) Select label Auto, select items Read File, Erase Device (sub-item File Area of Erase Device
had better be selected), Program and Exit ISP, then click button “Connect”, a dialog shown as Fig. 9
will display if connection is successful, in which device type identified by the system automatically will
display and option “Flash_0” in the static frame “SpiFlash_X” will be ticked off. If device type or
“Flash_0” is not identified correctly, the connection is failed, then ISP tool will repeat identification
automatically until device type and “Flash_0” are identified correctly, if not, please check hardware
connection.
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Fig. 9 Successful connect interface
f) Click button “Run” to begin software upgrading after successful connection . Please refer to
Fig. 10;
Fig. 10 Software upgrading interface
g) Successful software upgrading interface is shown as Fig. 11;
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Fig. 11 Successful software upgrading interface
10.3 Software upgrading method from USB port (it is advised to use the method if the picture could
not display because of wrong panel parameters)
a) Copy file offered by RD department to the root directory of U disk. Note that the file name must
be MERGE.bin and kept in the root directory of U disk.
b) Insert U disk to USB port, keep pressing any key on the key board of the unit except key
“Standby” or “Input”, connect to power supply, switch on power switch of the unit, then IR indicato r
light begins twinkling to show the unit is in the process of upgrading, unloose the key you press, the
unit will reset automatically after upgrading process completed.
Note that U disk must not be pulled out or the unit must not be cut off during the upgrading
process.
Page 17
Working principle analysis of the unit
RF signal from antenna is sent into Tuner chip N401 to be processed by
HF-amplifier and mixer to get digital IF signal DIF, then DIF signal is sent to
main chip N101(MST6E182VG).
HDMI signal is sent to HDMI switch chip N201 to be switched by
three-way-signal-selection switch and then sent to main chip N101(MST6E182VG).
Video and audio signals from AV, YPbPr , VGA, USB are sent to main chip
N101(MST6E182VG)directly.
Main chip N101(MST6E182VG)is a special large scale IC with full functions,
such as HDMI interface processing, video decoding, video switch selection,
A/D and D/A transformation, interleaved/successive scan processing, mode
transformation, OSD and low-voltage difference output processing, etc.;
furthermore, it also has functions of audio selection and audio processing,
MCU, etc.; external video signal is processed by main chip N101(MST6E182VGC), then 4 pairs of difference signals and one pair of clock
signals are outputted to LCD to display; external audio signal processed by
main chip N101(MST6E182VG) is sent to sound amplifier N402 to be
amplified and then sent to speakers.
TMDS High Speed Differential Input Pins (All these pins provide ±8kV HBM ESD Protection)
Pin Name Direction Description Type Pin No.
ARX2P Input Channel 2 positive input of Port A TMDS 30
ARX2M Input Channel 2 negative input of Port A TMDS 29
ARX1P Input Channel 1 positive input of Port A TMDS 27
ARX1M Input Channel 1 negative input of Port A TMDS 26
ARX0P Input Channel 0 positive input of Port A TMDS 24
ARX0M Input Channel 0 negative input of Port A TMDS 23
ARXCP Input Clock channel positive input of Port A TMDS 21
ARXCM Input Clock channel negative input of Port A TMDS 20
BRX2P Input Channel 2 positive input of Port B TMDS 14
BRX2M Input Channel 2 negative input of Port B TMDS 13
BRX1P Input Channel 1 positive input of Port B TMDS 11
BRX1M Input Channel 1 negative input of Port B TMDS 10
BRX0P Input Channel 0 positive input of Port B TMDS 8
BRX0M Input Channel 0 negative input of Port B TMDS 7
BRXCP Input Clock channel positive input of Port B TMDS 5
BRXCM Input Clock channel negative input of Port B TMDS 4
CRX2P Input Channel 2 positive input of Port C TMDS 63
CRX2M Input Channel 2 negative input of Port C TMDS 62
CRX1P Input Channel 1 positive input of Port C TMDS 60
CRX1M Input Channel 1 negative input of Port C TMDS 59
CRX0P Input Channel 0 positive input of Port C TMDS 57
CRX0M Input Channel 0 negative input of Port C TMDS 56
CRXCP Input Clock channel positive input of Port C TMDS 54
CRXCM Input Clock channel negative input of Port C TMDS 53
TMDS High Speed Differential Output Pins
Pin Name Direction Description Type Pin No.
TX2P Output Channel 2 positive output of output port TMDS 36
TX2M Output Channel 2 negative output of output port TMDS 37
TX1P Output Channel 1 positive output of output port TMDS 39
TX1M Output Channel 1 negative output of output port TMDS 40
TX0P Output Channel 0 positive output of output port TMDS 42
TX0M Output Channel 0 negative output of output port TMDS 43
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IT6633
TXCP Output Clock channel positive output of output port TMDS 45
TXCM Output Clock channel negative output of output port TMDS 46
DDC, HPD and PWR5V Control Pins
Pin Name Direction Description Type Pin No.
ASCL I/O Port A DDC bus clock line 5V-Tol. 19
ASDA I/O Port A DDC bus data line 5V-Tol. 18
BSCL I/O Port B DDC bus clock line 5V-Tol. 3
BSDA I/O Port B DDC bus data line 5V-Tol. 2
CSCL I/O Port C DDC bus clock line 5V-Tol. 52
CSDA I/O Port C DDC bus data line 5V-Tol. 51
TXSCL I/O Output Port DDC bus clock line 5V-Tol. 47
TXSDA I/O Output Port DDC bus data line 5V-Tol. 48
TXHPD Input HPD signal of the HDMI Sink 5V-Tol. 44
AHPD Output HPD signal to be sent back to Source connected to Port A LVTTL 16
BHPD Output HPD signal to be sent back to Source connected to Port B LVTTL 1
CHPD Output HPD signal to be sent back to Source connected to Port C LVTTL 50
TXPWR5V Output When ‘1’, indicates that the selected input port has a valid
LVTTL 49
PWR5V input and TMDS clock
APWR5V Input PWR5v of input port A for detection 5V-Tol 15
BPWR5V Input PWR5v of input port B for detection 5V-Tol 6
CPWR5V Input PWR5v of input port C for detection 5V-Tol 55
Other Control and Configuration Pins
Pin Name Direction Description Type Pin No.
RESET Input Reset signals for logic blocks (active-high) LVTTL 17
PCSCL Input Serial programming Clock for chip programming (5V-tolerant) Schmitt 34
PCSDA I/O Serial programming Data for chip programming (5V-tolerant) Schmitt 33
PCADR0 Input Control of serial programming device address:
LVTTL 35
‘0’: 0x94
‘1’: 0x96
(default to ‘0’: 0x94 by internal weak pulled-down resistor of
100kΩ)
REXT Analog External resistor for auto-calibration. Must be tied to VSS via a
Analog 31
500Ω precision resistor.
NC Must be left unconnected 28, 32, 64
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IT6633
Power and Ground Pins
Pin Name Description Type Pin No.
VCC Chip power supply (3.3V) Power 12, 22, 38, 61
VSS Chip ground Ground 9, 25, 41, 58
Page 30
SSTIMER
OC_ADJ
PLL_FLTP
VR_ANA
NC
AVSS
PLL_FLTM
BST_A
GVDD_OUT
PVDD_A
OUT_A
RESET
PVDD_A
STEST
PDN
VR_DIG
OSC_RES
DVSSO
DVDD
MCLK
FAULT
SCLK
SDIN
LRCLK
AVDD
SDA
SCL
DVSS
GND
VREG
BST_B
PVDD_B
PVDD_C
OUT_C
PVDD_D
BST_D
PGND_AB
OUT_B
PGND_CD
OUT_D
AGND
PGND_AB
PVDD_B
PGND_CD
PVDD_D
BST_C
PVDD_C
GVDD_OUT
P0075-01
PHP Package
(TopView)
TAS5707
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3、 TAS5707, TAS5707A
48-TERMINAL, HTQFP PACKAGE (TOP VIEW)
Page 31
TAS5707, TAS5707A
PIN FUNCTIONS
PIN
NAMENO.
AGND30PAnalog ground for power stage
AVDD13P3.3-V analog power supply
AVSS9PAnalog 3.3-V supply ground
BST_A4PHigh-side bootstrap supply for half-bridge A
BST_B43PHigh-side bootstrap supply for half-bridge B
BST_C42PHigh-side bootstrap supply for half-bridge C
BST_D33PHigh-side bootstrap supply for half-bridge D
DVDD27P3.3-V digital power supply
DVSSO17POscillator ground
DVSS28PDigital ground
FAULT14DOBackend error indicator. Asserted LOW for over temperature, over
GND29PAnalog ground for power stage
GVDD_OUT5, 32PGate drive internal regulator output
LRCLK20DI5-VPulldownInput serial audio data left/right clock (sample rate clock)
MCLK15DI5-VPulldownMaster clock input
NC8–No connection
OC_ADJ7AOAnalog overcurrent programming. Requires resistor to ground.
OSC_RES16AOOscillator trim resistor. Connect an 18.2-kΩ 1% resistor to DVSSO.
OUT_A1OOutput, half-bridge A
OUT_B46OOutput, half-bridge B
OUT_C39OOutput, half-bridge C
OUT_D36OOutput, half-bridge D
PDN19DI5-VPullupPower down, active-low. PDN prepares the device for loss of power
PGND_AB47, 48PPower ground for half-bridges A and B
PGND_CD37, 38PPower ground for half-bridges C and D
PLL_FLTM10AOPLL negative loop filter terminal
PLL_FLTP11AOPLL positive loop filter terminal
PVDD_A2, 3PPower supply input for half-bridge output A
PVDD_B44, 45PPower supply input for half-bridge output B
PVDD_C40, 41PPower supply input for half-bridge output C
PVDD_D34, 35PPower supply input for half-bridge output D
RESET25DI5-VPullupReset, active-low. A system reset is generated by applying a logic low
SCL24DI5-VI2C serial control clock input
SCLK21DI5-VPulldownSerial audio data clock (shift clock). SCLK is the serial audio port input
SDA23DIO5-VI2C serial control data interface input/output
SDIN22DI5-VPulldownSerial audio data input. SDIN supports three discrete (stereo) data
TYPE5-VTERMINATION
(1)
TOLERANT
(2)
DESCRIPTION
current, over voltage, and under voltage error conditions. De-asserted
upon recovery from error condition.
supplies by shutting down the noise shaper and initiating PWM stop
sequence.
to this pin. RESET is an asynchronous control signal that restores the
DAP to its default conditions, and places the PWM in the hard mute
state (tristated).
data bit clock.
formats.
Page 32
TAS5707, TAS5707A
PIN FUNCTIONS (continued)
PIN
NAMENO.
SSTIMER6AIControls ramp time of OUT_X to minimize pop. Leave this pin floating
STEST26DIFactory test pin. Connect directly to DVSS.
VR_ANA12PInternally regulated 1.8-V analog supply voltage. This pin must not be
VR_DIG18PInternally regulated 1.8-V digital supply voltage. This pin must not be
VREG31PDigital regulator output. Not to be used for powering external circuitry.
TYPE5-VTERMINATION
(1)
TOLERANT
(2)
DESCRIPTION
for BD mode. Requires capacitor of 2.2 nF to GND in AD mode. The
capacitor determines the ramp time.
used to power external devices.
used to power external devices.
Page 33
Wiring Diagram
Panel
Power board assembly
Key board assembly
Main board assembly
IR board assembly
Page 34
Troubleshooting flow chart
1. No raster, no picture, no sound.
Yes No
Press button POWER of remote control or unit to
turn on the TV set, then check if C333(5V) are
normal or not?
Yes No
Is the voltage of
No No
X301-6# on main
board high level?
Yes Yes Yes No
Check
backlight
board
Check
N101and its
power circuits
No raster, no picture, no sound
Is the voltage of R324
on main board high
level?
Check
N301and its
power circuits
Does power indicator light up?
Check 12V_STB
Disconnect power
board from data
processing board, then
test 12V_STB again.
Check main
board N303and
its power circuits
Check power
board
Page 35
2. No picture, but sound is normal.
r
p
p
Yes No
Check if current channel that
OSD displays is normal or not?
HDMI
USB
Check if
N102(KEY)
is normal or
not?
Check if 5V
supplied for USB
channel is
normal or not?
Check N101 and its power circuits
No picture, but sound is normal.
Are LOGO and OSD normal?
TV/AV/VGA/
YPbP
Check if signal
input is normal or
Switch to TV
channel, check
power supply,
I2C BUS and
pin12/13 output
of TUNER chip
are normal or
not?
Check LVDS
connection
Check if power voltage of
panel backlight and backlight
control pin X301-6# (3V) are
normal or not?
No Yes
Power board
roblem
has
PANEL has
roblem.
Page 36
3. No sound, but the picture is normal.
p
p
No Yes
No
Check power 12/24V supplied
for C348 is normal or not?
Yes
Check if there is signal inputted to
power amplifier N402, check if MUTE
and power of N402 are normal or not?
No sound, but the picture is normal.
Check if there is output from X402?
Connection to speakers or
s
eakers have problem.
Check V309
and its power
Check if power
Yes
amplifier N402 and
power of control
circuits are normal or
not?
No
Yes
No
Check if output of N101-P8/R9/R8/T8 are normal or
not and check if the voltage of N101-J16 is high level?
Check if power amplifier
N402 is normal or not?
Check current channel.
TV channel
USB channel
YPbPr ,VGA,
AV channel
Check if there is
ut from AVOUT ?
out
Check if DIF output
circuits of TUNER is
无
Check if file
format is
Check if there is
signal inputted to
corresponding
terminal of N101?
Speaker assembly1
Pedestal standing pole1
Pedestal faceplate assembly1
Key board assembly1
Remote control
User manual
Only the parts in above list are used for repairing.
Other parts except the above parts can't be supplied.
1
1
Page 49
Appendix: Installing the Stand
If the stand is provided, please read these instructions thoroughly before attempting this installation.
Safety Precautions:
1.Please read these instructions thoroughly prior to attempting this installation.
2.Be sure to handle this product very carefully when attempting assembly. If you are unsure of your
capability, or the use of tools necessary to complete this activity, refer to a professional installer or
service personnel. The manufacturer is not responsible for any damages or injuries that occur due to
mishandling or improper assembly/installation.
3.When using a table or bench as an aid to assembly, be sure to put a soft cushion or covering to prevent
accidental scratching or damage to the unit's finish.
4.The speaker is not intended to support the weight of this display. Do not move or handle this product
from the speaker; which can cause damage to the display not covered under the manufacturer's
warranty.
To install the stand:
1. Remove the stand from the box and place it on a table or bench.
You must pay attention to the direction of the stand. The wide portion of the stand should go towards
the front of the TV.
2. Lay your TV flat (screen down) on the edge of a table or bench. Make sure that you put down a soft
cushion or cloth so that your TV is not scratched.
3. Attach the stand column to the back of the TV, align the holes in the TV back with the holes in the stand
column, then secure the stand column to the TV with the screws provided.
4. Align the stand to the stand column, align the holes in the stand column with the holes in the stand, then
secure the stand to the stand column with the screws provided.
Secure with
three screws (T4x10BT)
Stand column
Stand
S
ecure with
one screw (T4x14BT)
NOTE:
1.Appearance of this product in illustrations may differ from your actual product, and is for comparative
purposes only.
2.Design of this accessory or display products are subject to change without notice.
Page 50
WALL MOUNTING INSTRUCTIONS
Safety Precautions:
1. Be sure to ask an authorized service personnel to carry out setup.
2. Thoroughly read this instruction before setup and follow the steps below precisely.
3.The wall to be mounted should be made from solid materials. Only use accessories supplied by the manufacturer.
4.Very carefully handle the unit during setup. We are not liable for any damage or injury caused by mishandling or improper installation.
5.Be sure to place the unit on a stable and soft platform which is strong enough to support the unit.
6.Do not uplift the speaker when moving the display. The appearance of the unit may different from the actual ones.
7.Design and specifications are subject to change without notice.
8. Retain these instructions for future reference.
Note: All the wall mounting parts are
optional and may be unavailable in
your model.
Below we will show you how to mount the
Display on the wall using our company’s
wall mounting components.
Take out these
parts from the
box
Combination Screw
Fig.1
1. There are three options of wall mounting
ho ld er with different specifications
:200200,200400,200600. Please check your
wall mounting holder for its specification.
Wall Mounting Holder
Wall Mounting Connector
Expansion Bolt
Wood Screw
Wall mounting fix-hole c ent er
X
8
20027
Rea r wall mounting hole center
Fig.2
2. Due to the wall mounting fix-groove leaning to the
right side, the whole unit will lean to right side after
installation, please carefully measure the position of
the holes you want to drill, refer to the parameters
on Fig.2 when drilling the holes.
Note: The "X" in Fig.2 represents a data. It may be
200mm or 400mm or 600mm.
(Unit:mm)
Wall
Fig.3 a
3a. Screw 4pcs expansion bolts to fix the
wall mounting holder on the wall.
Wall
Fig.3 b
3b. If your wall is a wooden structure, please
fix the wall mounting holder on the wall
with 16pcs wood screws.
Fig.4
4. Use the 4pcs combination screws to fix
the wall mounting connector to the rear
of the display unit.(Caution:the direction
of the connectors should be strictly
confirm to the diagram illustrated above).
Fig.5
5. Put the back of the display unit close to the wall
mounting holder, insert the four wall mounting
connectors into the four calabash-shaped holes on
the wall mounting holder. (Fig.5)
Fig.6
6. Let the display unit slowly slide down to
the end of the calabash-shaped hole.
(Fig.6)
8. If you want to dismount the unit do the above steps in reverse order.
7. Push rightwards carefully until the wall
mounting connectors fully slide into the
right fix-grooves and be sure the mounting
is secure.
Fig.7
Page 51
April 2013
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