Sanyo LCD-42XR56DZ User manual

SERVICE MANUAL
FILE NO.
PRODUCT CODE No.
REFERENCE No.:SM0915057
1 682 346 41
PRODUCT CODE No.
LCD TV
LCD-42XR56DZ

CONTENTS
Safety precautions………………………………………………………………………..…
Alignment instructions …………………………….…….…………………………………
Method of software upgrading……………………………………………………………..
Working principle analysis of the unit……………………………….………….………….
Block diagram…………………………………..………………………………….…………
IC block diagram and instruction…………………………………………………………..……
Wiring diagram …………………………………………………………………………….
Troubleshooting guide ………………………………………………………………..……
Schematic diagram…………………………………………………………………………
APPENDIX-A: Main assembly list
APPENDIX-B: Exploded View
3
5
11
15
18
19
23
24
27

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 to 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 a must for the welder to wear anti static gloves.
Please refer to the detailed list before replacing components that have special safety requirements.
Do not change the specs and type at will.
2. Points for attention in servicing of LCD
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 The operation voltage of LCD screen is 700-825V. 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
Attention: This service manual is only for service personnel to take reference with. Before
servicing please read the following points carefully.

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 Scope for operation 5 ~ +35 oC
Scope for storage -15~ +45 oC
Humidity Scope for operation 20% ~ 80%
Scope for storage <= 80%
2.13 Display of a fixed picture for a long time may result in appearance of picture residue on the
screen, as commonly called “ghost shadow”. The extent of the residual picture 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. Points for attention during installation
3.1 The front panel of LCD screen is 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.

Alignment instructions
Test equipment
PM5518 (video signal generator)
VG-848 (VGA, YPbPr signal generator)
VG-849 (HDMI digital video signal generator)
CA210 (color analyzer)
1 Alignment flow
1.1 Voltage of power supply test
According to the wiring diagram “9232KE5601JL”, connect power board, digital board, IR board
correctly; then power on and press key “standby” .
a) Test voltage of socket X801 each pin in turn listed as Table 1.
Table 1 Voltage of X801 each pin
X801 Pin1 2 3 4 5、6 7 、89 10 11
Voltage 8.55 V～9.45 V 0 4.85 V～5.35 V 011.4 V～12.6 V 0 4.85 V～5.35 V 0 >2.5
V
b) Test voltage of socket XV03 each pin in turn listed as Table 2.
Table 2 Voltage of XV03 each pin
XV03 Pin1、2 3、4、5
Voltage 23.8 V～25.2 V 0

1.2 Adjustment flow chart as Fig.1
Fig.1 Adjustment flow chart
2 Alignment instruction
2.1 Unit adjustment
2.1.1 According to the wiring diagram “9232KE5601JL”, connect power board, digital board,
SCART interface board, IR board, key board and side AV board correctly; then power on,
check if the display is normal.
2.1.2 Using method of factory menu
a) First press key “SOURCE”，then press number key “2、5、8、0” in turn to enter into initial
factory menu;
b) Press keys “CH+” and “CH-” can move cursor to each page of initial factory menu, then press
key “OK” can enter into adjustment menu of each page;
c) Press keys “CH+” and “CH-” can move cursor upwards and downwards within one adjustment
page;
d) Move cursor to one adjustment item, then press keys “VOL-” and “VOL+” can adjust it;
e) Press key “MENU” can exit adjustment menu of one page to its superior factory menu;
f) Press key “EXIT” can exit factory menu at any time;
g) Press key “OK” can enter into inferior factory menu;
Check if DDC、、HDCP KEY and FLASH
have been burned.
combination adjustment for general
assembly
white balance adjustment
Connect to central signal source, check if
TV functions are normal -omitted channel,
analog parameters control, etc; check if
output of earphone and speaker are
normal.
Input VGA signal，check if the display is normal;
check if every function is normal -analog
parameter control, horizontal/vertical center, etc.
Input AV/SVIDEO/SCART signal，check if
functions of every channel are normal.
Input HDMI signal,check if the display is normal;
check if every function is normal –analog
parameter control, horizontal/vertical center, etc.
setup before leaving factory
Check accessories and packing.
Input high-definition component signal
(mode), check if every YPbPr function is
normal.

h) Factory menu item “ADC Calibrate” is used to correct ADC of VGA and Component
channel;
i) Factory menu item “W/B ADJUST” is used to adjust white balance;
j) Factory menu item “POWER MODE” is used to set power-on mode, “Standby” means the
set will be in standby state after power-on; “MEM” means the set will be in the state before
the last power-off; “ForceOn” means the set will be working automatically after power-on,
this mode is also used for factory-machine-aging; default setting should be “Standby” mode
unless specified by customer requirement;
k) Factory menu item “ISP MODE” is used to upgrade unit software from VGA port when the
item is set as “ON” and the set is connected to ISP adjustment equipment; DDC function of
VGA port will be recovered when the item is set as “OFF”; the value of the item can not be
kept in the memory, that is to say the item is reset as “OFF” after power-on again;
l) Factory menu item “RESET ALL” is used to reset factory menu data and user menu data;
after execute the item, the set will be started up again and the startup guided picture will be
displayed;
m) Factory menu item “FACTORY CHANNEL PRESET” is used to preset factory programs
data; it is necessary to connect to central signal source for DTV searching programs. Now
digital frequency of central signal CH28(529.5 MHz) and CH33(564.5 MHz) are distributed
to Australia programs. Primary preset programs would not be modified along with the
changing of central signals, so please select item DTV in menu Channel to manual search
digital programs, the process will spend about 15s;
n) Factory menu item “CUSTOM CHANNEL PRESET” : first delete all DTV/ATV programs for
factory adjustment, then preset ATV channel data according to customer order requirements;
please execute the item to clear out all programs for factory adjustment before leaving
factory;
o) Factory menu item “MST Debug” :default setting “OFF” is used for engineering models
whose RS232 functions can measure up to design specifications; setting “ON” is convenient
for debugging by developing tools; the value of the item can not be kept in the memory, that
is to say the item is reset as “OFF” after power-on again;
p) Factory menu item “BACKLIGHT” is used to adjust backlight brightness, adjust the item and
test voltage of X802-2# (PWM) to measure up to the maximum PWM voltage in panel
specification;
q) Factory menu item “SSC ADJUST” is used to adjust expended functions of frequency
content, the software having been preset according to model need not be adjusted again;
r) Factory menu item “AUDIO Curve” is used to adjust audio curve; without special customer
requirements, the software having been preset according to model need not be adjusted
again;
If the software has been upgraded or EEPROM has data already, please execute item
“RESET ALL” before adjustment for the first time.
2.1.3 ADC calibration
ADC calibration of VGA channel
a) Switch to VGA channel;
b) Press key “SOURCE”, then press number keys “2、5、8、0” to enter into initial factory menu;
c) Move cursor to item “ADC ADJUST” and press key “OK” to enter into interior factory menu;
d) Input VGA signal (VG-848 Timing:856(1024×768/60 Hz)，Pattern 920 Gray 8 step(H)),

move cursor to item “MODE”，press keys “▲” and “▼” to select item “RGB”, then move
cursor to item “AUTO ADC” and press key “OK” to begin adjustment automatically until
adjustment completion.
ADC calibration of YPbPr channel
a) Switch to YPbPr channel;
b) Press key “SOURCE”，then press number keys “2、5、8、0” to enter into initial factory menu;
c) Move cursor to item “ADC ADJUST” and press key “OK” to enter into interior factory menu;
d) Input YPbPr signal (VG848 Timing 972（1080i）,Pattern 918 SMPTE Color Bar), move
cursor to item “MODE”，press keys “▲” and “▼” to select item “YPbPr（HD）”, then move
cursor to item “AUTO ADC” and press key “ENTER” to begin adjustment automatically, a
prompt “success” displayed under “AUTO ADC” means auto-adjustment completed
successfully;
e) Input YPbPr signal (VG848 Timing 978（483P）,Pattern 918 SMPTE Color Bar), move
cursor to item “MODE”，press keys “▲” and “▼” to select item “YPbPr（SD）”, then move
cursor to item “AUTO ADC” and press key “ENTER” to begin adjustment automatically, a
prompt “success” displayed under “AUTO ADC” means auto-adjustment completed
successfully;
2.2 White balance adjustment
Unless specified by customer, default COOL color temperature is 12000K, chromaticity
coordinates is （272 、278 ）; default Normal color temperature is 9300K,chromaticity
coordinates is（285、293）; default Warm color temperature is 6500K, chromaticity coordinates
is （313、329）.
2.3 White balance adjustment processes
The set should be working above 30 minutes before white balance adjustment for it would be in
a stabler state. Use white balance apparatus CA-210 and switch to its BBY channel.
a) Switch to HDMI channel；
b) Press key “SOURCE”, then press number keys “2、5、8、0” in turn to enter into initial factory
menu;
c) Move to item “W/B ADJUST” and press key “OK” to enter into interior factory menu;
d) Input DVI/HDMI signal （VG-848 Timing: 856(1024×768/60 Hz)，Pattern:921 16 step
Gray）, move cursor to item “MODE”, press keys “▲” and “▼” to select item “HDMI1” or
other HDMI channels, then move cursor to item “TEMPERTURE”, press keys “▲” and “▼”
to select item “COOL”;
e) Adjust items “R GAIN、G GAIN、B GAIN” to set chromaticity coordinates of the 14th step
is （272、278）;
f) Adjust item “R Offset、G Offset、B Offset” to set chromaticity coordinates of the 4th step is
（272、278）;
g) During adjustment , make sure that color temperature of bright step is (X=272±10 Y=278±10)
and color temperature of dark step is (X=272±10 Y=278±10);
h) Then move cursor to item “COPY ALL” to copy white balance data to the other channels
except DTV channel;
i) Check if color temperature of HDMI NORMAL and WARM meet requirements as below:
bright step: allowable error is ±10, dark step: allowable error is ±10;
otherwise adjust items “R_GAIN /B_GAIN/R_OFF/B_OFF” to meet requirements and then
save data;

j) Switch to other channels ATV, AV，COMPONENT and D-SUB , check if color temperature of
COOL，NORMAL and WARM meet requirements; otherwise adjust them respectively with
16 step Gray signal and the same adjustment method as HDMI channel’s; exit menu “W/B
ADJUST” after adjustment and the data would be saved automatically;
k) DTV channel adjustment: switch to DTV channel, input 16 step Gray signal, enter into
factory menu, then begin adjustment followed by steps “e, f, g”;
l) Adjustment rules for reference as below:
adjust Bgun: adjust Bgun value downwards , then coordinates of X、Y will rise;
adjustBgun value upwards , then coordinates of X、Y will descent;
adjust Rgun will effect the coordinate of X, and effect the value of Lv a little:
adjustRgun value upwards , then coordinate of Xwill rise;
adjustRgun value downwards , then coordinate of Xwill descent;
adjust Ggun will effect the coordinate of Y, and effect the value of Lv a lot:
adjustGgun value upwards , then coordinate of Ywill rise;
adjustGgun value downwards , then coordinate of Ywill descent;
note: default color temperature for SANYO customer is Normal; change to picture mode
Dynamic, adjust chromaticity coordinates of color temperature Normal and Cool;
only adjust chromaticity coordinates of color temperature Cool for other customers when
picture mode is Dynamic.
3 Performance check
3.1 TV functions
Connect RF port to central signal source, first enter into menu CHANNEL, then search
programs automatically, check if there is any omitted program, check if the output of speakers is
normal, check if the picture is normal.
3.2 AV/S-Video port
Input AV/S-Video signal respectively, check if the picture, the sound and other functions are
normal;
3.3 SCART port
Input signal to SCART port, check if the picture, the sound and other functions are normal;
Switch to TV channel, check if the picture, the sound and other functions of SCART OUT
channel are normal;
3.4 YPbPr/YCbCr port
Input YUV signal from signal generator VG-848 with YUV formats as Table 4 respectively, check
if the display and the sound are normal under the circumstances of power-on/off, switching
channel, switching signal format, etc.
Table 4 YUV receiving signal formats
No. Definition
Horizontal
frequency
（kHz）
Vertical frequenvy
（Hz）
Dot-pulse
frequency
（MHz）
Remark
1 720×480 15.734 60 13.5 480i (NTSC)
2 720×480 15.734 59.94 13.5 480i (NTSC)
3 720×576 15.625 50 13.5 576i (PAL)

4 720×480 31.469 60 27 480p (NTSC
PROG)
5 720×480 31.469 59.94 27 480p (NTSC
PROG)
6 720×576 31.25 50 27 576p (PAL PROG)
7 1280×720 45 59.94 74.18 720p (59p)
8 1280×720 45 60 74.25 720p (60p)
9 1280×720 37.5 50 74.25 720p (50p)
10 1920×1080 33.75 59.94 74.25 1080i (59i)
11 1920×1080 33.75 60 74.25 1080i (60i)
12 1920×1080 28.125 50 74.25 1080i (50i)
13 1920×1080 67.5 59.94 148.35 1080p (59p)
14 1920×1080 67.5 60 148.5 1080p (60p)
15 1920×1080 56.25 50 148.5 1080p (50p)
16 1920×1080 - 23.94/24 - -
17 1920×1080 - 25 - -
18 1920×1080 - 29.97/30 - -
3.5 VGA port
Input VGA signal from signal generator VG-848 with VGA formats as Table 5 respectively, check
if the display and the sound are normal; if there is any deviation of line or field, enter into main
menu, select and execute items “Picture->Screen->Auto Adjusting” in turn to correct them
automatically.
Table 5 VGA receiving signal formats
No. Definition
Horizontal
frequency
（kHz）
Vertical
frequenvy
（Hz）
Dot-pulse
frequency
（MHz）
Remark
1 640×480 31.469 59.94 25.175 IBM
2 720×400 31.469 70.086 28.322 IBM
3 640×480 37.861 72.809 31.5 VESA
4 640×480 37.5 75 31.5 VESA
5 800×600 35.156 56.25 36 VESA
6 800×600 37.879 60.317 40 VESA
7 800×600 48.077 72.188 50 VESA
8 800×600 46.875 75 49.5 VESA
9 1024×768 48.363 60.004 65 VESA
10 1024×768 56.476 70.069 75 VESA
11 1024×768 60.023 75.029 78.75 VESA
12 1152×864 67.5 75 108 VESA
13 1280×960 60 60 108 VESA
14 1280×1024 63.98 60.02 108 VESA
15 1280×1024 80 75 135 SXGA
16 1440×900 - 60 - -
17 1680×1050 - 60 - -
18 1360×768 47.7 60 85.5 -

3.6 HDMI port
Input HDMI signal from signal generator VG-849 with the formats as Table 4 and Table 5
respectively, check if the display and the sound（32 KHz、44.1 KHz、48 KHz）are normal under
the circumstances of power-on/off, switching channel, switching signal format, etc.
3.7 Other functions check
a) Check if the functions are normal —timing turn-on/off 、turn-off of sleeping time 、
picture/sound mode、OSD、stereo and digital audio interface, etc.;
b) Check if audio only digital programs (RADIO) are normal;
c) For UK models, check if MHEG function of digital programs are normal;
d) Check if common interface（CI：Common Interface）is normal;
e) For New Zealand models, check if function of logic channel number (LCN) is normal, check
if function of Over Air Download（OAD）is normal;
f) For France, UK and Italy models, check if function of logic channel number (LCN) is
normal.
4 User menu setup before leaving factory
Enter into page “LOCK” of user menu, select submenu item “Restore Factory Default” to preset
items before leaving factory as below:
a) Clear out all programs information;
b) Clear out information of parental control (VCHIP);
c) Default setup of user analog data;
d) Set Menu Language as English;
e) Set Power on MODE as Off.
5 Instruction of factory software burning as Table 6
Table 6 Instruction of factory software burning
No. Part No. Part type
Instruction of
software
function
Burned
before
SMT
Burning method
N111 5276405001 MX25L6405DMI-12G FLASH Yes
burned with program
ALL100, write-protect setup,
refer to Note 1 in detail
N108 5272404002 AT24C04 HDMI KEY Yes burned with program ALL100
NA04 5272402002 AT24C02 HDMI EDID Yes burned with program ALL100
NA05 5272402002 AT24C02 HDMI EDID Yes burned with program ALL100
NA06 5272402002 AT24C02
HDMI EDID
(supporting
the3rd HDMI)
Yes burned with program ALL100
N106 5272402002 AT24C02 VGA EDID Yes burned with program ALL100
Note 1: Write-protect setup method
Enter into burning interface of program ALL-100, select item “Config”, press item “config
Setting”, set item “Protect” as “All Protect”; be sure to select item “Config” before burning
software, and write-protect must be re-set after burning program ALL-100 startup every time.

Note 2: Burning and upgrading software method with burning tool ISP
1）Main board upgrading: connect 4-core line of burning tool ISP to Debug port（location No. X807）
of main board;
Unit upgrading: connect both VGA ports between burning tool ISP and main board, then enter
into factory menu and set item “ISP Mode” as “ON”;
2）Use on-line burning tool of Mstar, enter into menu “Device”, select item “WP Pin pull to high
during ISP” as Fig. 2; for the normal erasing process, make sure hardware write-protect of Flash
is canceled;
Fig. 2 Write-protect setup
3) Select menu “Connect”, a dialog “Device Type is MX25L64” will be displayed as Fig. 3 , that is
to say connecting is successful;
Fig. 3 DeviceMX25L64 successful connection
If failing to connecting, select the first menu “Device” and select item “MX25L64” manually, then
press key “Connect”.

4) Press key “Read”，select burning file (for example MERGE.bin) as Fig. 4.
Fig. 4 Burning file
5) Select menu “Auto”, then select items “All chip”, “program” and other configuration as Fig. 5
Fig. 5 Burning Configuration
6) Press key “Run” as Fig. 4 to begin burning software, there are two steps for the process: Erase
and Program
normal burning steps are as follows:
the first step “Erasing…，Flash Status: 03” will be lasting for a moment, otherwise skipping over
means unsuccessful erasing; please confirm process （2）and then burn software again;
the following step “Programming…，Flash Status:00” will be done until a prompt “Pass” is
displayed.

7) A prompt “Pass” will be displayed beside the key “Run” for successful burning as Fig. 6
Fig. 6 A prompt “Pass” beside the key “Run” for successful burning
8) Need not exit ISP burning interface and only repeat the process 3）and 5）to go on burning
software for other sets.
Note 3: On-line burning and upgrading method from USB port
1）Be sure to format a U disk as FAT32;
2）Copy program file to the U disk with the name “Merge.bin”;
3）Power on, be sure to switch to ATV or DTV channel and not to display OSD interface; insert the U
disk into a USB port, then USB upgrading process will begin automatically;
4）Upgrading processes:
A、Reading data from the U disk:
A prompt “Searching USB” is displayed and an indicating light of U disk is twinkling;
B、Burning Flash:
A prompt “Updating! Please don’t power off!!!” is displayed and an indicating bar is showing
upgrading schedule; the set will be in Standby mode after the burning process completed;
5）Start up the set again, enter into factory menu to verify software version and time parameters;
then execute item “RESET ALL” to complete the whole burning process.
*** Method of burning from USB could not be sure to be suitable for all kinds of U disks, so please try
other U disks if necessary.

Working principle analysis of the unit
1、PAL/SECAM signal flow
PAL/SECAM signal from antenna is inputted into TUNER FQD1116 which is
an analog-digital-integrative model, the analog RF signal is demodulated by the
TUNER, then CVBS signal and SIF(sound intermediate frequency) signal are
outputted. TUNER FQD1116 is controlled by main chip MSD209（with embedded
CPU) through I2C bus.
TV CVBS signal is inputted into main chip MSD209 directly to be processed
by modules “VIDEO DECODER、DEINTERLACE and SCALER”, then LVDS
signal is outputted to drive LCD panel.
SIF audio signal is inputted into main chip MSD209 directly and processed
by modules of demodulation, pre-amplification, acoustic effect processing and
volume control, then the audio signal are inputted into left and right sound tracks
of earphone amplifier BH3547F to be amplified and then are divided to two
signals, one is outputted to earphone jack, the other is inputted into class D audio
power amplifier R2A15112 to be amplified and then be outputted to speakers.
2、DVB-T signal flow
DVB-T signal from antenna is inputted into TUNER FQD1116 to be tuned,
RFamplified, IF amplified and SAW FILTER inside, then IF signal is outputted to
demodulating chip CE6353 to be demodulated and then be inputted into main
chip MSD209 with format of standard serial or parallel TS stream for demultiplexing
and decoding.
Video route: demultiplexed video signal is decoded by main chip MSD209
and then digital video signal is outputted; in the end LVDS signal is outputted to
drive LCD panel after a series of digital processes and OSD addition within main
chip MSD209.
Audio route: demultiplexed audio signal is decoded into Dolby AC-3
signal or MPEG multi-sound-track digital audio signal by inner decoder of main
chip MSD209, then one is outputted through SPDIF directly; after the process of
“sub-transform and DAC”, the other is outputted as analog audio signal, the analog
audio signal is inputted into the rear part of main chip MSD209 for acoustic effect
processing and volume control, then inputted into left and right sound tracks of
earphone amplifier BH3547F respectively to be amplified, now the audio signal is
divided into two, one is outputted to earphone jack directly, the other is inputted into
class D audio power amplifier R2A15112 to be amplified and then outputted to speakers.
3、AV signal flow
After processed by impedance matching, AV video signal is inputted into
main chip MSD209 directly and processed by modules of “VIDEO DECODER、
DEINTERLACE and SCALER”, then LVDS signal is outputted to drive LCD
panel.
AV audio signal is processed by circuits of “voltage divided, impedance
matching and AC coupling”, then inputted into main chip MSD209 directlyfor acoustic
effect processing and volume control, then inputted into left and right sound tracks of
earphone amplifier BH3547F respectively to be

amplified, now the audio signal is divided into two, one is outputted to earphone
jack directly, the other is inputted into class D audio power amplifier R2A15112
to be amplified and then outputted to speakers.
4、PC/YPbPr signal flow
After processed by impedance matching, PC/YPbPr video signal is inputted
into main chip MSD209 to be processed by modules of “A/D transform, digital
video processing and OSD addition”, then LVDS signal is outputted to drive LCD
panel.
PC/YPbPr audio signal is processed by circuits of “voltage divided,
impedance matching and AC coupling”, then inputted into main chip MSD209 directly
for acoustic effect processing and volume control, afterwards the audio signal is
inputted into left and right sound tracks of earphone amplifier BH3547F directly to be
amplified, now the audio signal is divided into two, one is outputted to earphone jack
directly, the other is inputted into class D audio power amplifier R2A15112 to be
amplified and then outputted to speakers.
5、HDMI signal flow
HDMI video signal is inputted into main chip MSD209 to be processed by
modules of “digital video processing and OSD addition”, then LVDS signal is
outputted to drive LCD panel.
HDMI audio signal is decoded into Dolby AC-3 signal or MPEG multi-sound-
track digital audio signal by inner decoder of main chip MSD209, then one is
outputted through SPDIF directly; after the process of “sub-transform and DAC”,
the other is outputted as analog audio signal, the analog audio signal is inputted into
the rear part of main chip MSD209 for acoustic effect processing and volume control,
then inputted into left and right sound tracks of earphone amplifier BH3547F
respectively to be amplified, now the audio signal is divided into two, one is outputted
to earphone jack directly, the other is inputted into class D audio power amplifier
R2A15112 to be amplified and then outputted to speakers.
6、Brief instruction on unit functions
MPEG-2 MP@HL、H.264 Main and High profile up to Leve4.0 Decoding
MPEG、Dolby Digital（AC-3）、AAC Digital Audio Decoding
3D comb filter
Wide-range power supply、low consumed power in standby mode（≤1W）
Class D audio power amplifier with HI-FI acoustic effect output
High quality transformation from interleaved scanning to progressive scanning
Realizing integrative functions really
- build integration
- integrative TUNER（integrating analog with digital）
- integrative searching-program function
- integrative OSD interface
Main parts of the unit：
42 inch LCD panel（1920X1080）

Main chip：MStar MSD209FG-LF
Demodulating chip：Intel CE6353
TUNER：NXP FQD1116ME/IV
DDR：SAMSUNG K4T51163QC-HCF7
Class D audio power amplifier：RENESAS R2A15112
FLASH ：MX25L6405DMI-12G
External ports of the unit:
Two groups of Video input and RCA L/R input
One group of S-VIDEO input
Two groups of HDMI input
One group of VGA input
One group of audio input for VGA and DVI（Mini Phone Jack）
One group of YPBPR input and RCA L/R input
One group of RF
One group of RS232（Mini Phone Jack）
One group of audio output（Mini Phone Jack）
One group of Video output and RCA L/R output
One group of SPDIF（coaxial）output
One group of USB（for upgrading）

Block diagram

IC block diagram and instruction
1、Main chip MSD209FG-LF:
GENERAL DESCRIPTION
The MSD209FG is a highly integrated controller IC for LCD/PDP DTV applications with
resolutions up to full-HD (1920 x 1080). It is configured with an integrated triple-ADC/PLL,
a multi-standard TV video and audio decoder, a motion adaptive video de-interlacer, a
scaling engine, the MStarACE-3 color engine, an advanced 2D graphics engine, a
transport processor, a high-definition (HD) MPEG video decoder, a 24-bit DSP for MPEG
audio decoding, a DVI/HDCP/HDMI receiver, and a peripheral control unit providing a
variety of HDTV control functions.
For digital TV application, the MSD209FG comprises an MPEG-2 transport processor with
advanced section filtering capability, an MPEG-2 (MP@HL profile) video decoder, an
MPEG layer I and II digital audio decoder with analog audio outputs that are designed to
support existing and future DVB-T programs while handling conditional access.
Furthermore, it is also possible to decode MPEG-4, JPEG, MP3 formats from external
sources such as USB interfaces.
For analog TV, the MSD209FG includes NTSC/PAL/SECAM multi-standard video
decoder comprising a 3-D motion adaptive comb filter and time-based correction, and a
NICAM/A2 audio decoder to support worldwide television standards. The MSD209FG is
also configured with a VBI processor to decode digital information such as Close Caption /
V-chip / teletext / WSS / CGMS-A / VPS. In addition, the MStar advanced LCD TV
processor enhances video quality, motion adaptive de-interlacer, picture quality
adjustment units, and MStarACE-3 color engine.
By integrating peripherals including two USB 2.0 host controllers, UARTs, IR, SPI, I2C,
and PWM, the MSD209FG fulfills all requirements in advanced DTV sets. To further
reduce system costs, the MSD209FG also integrates intelligent power management
control capability for green-mode requirements and spread-spectrum support for EMI
management.
The register information provided in the Register Description section is related to analog
function of the MSD209FG. For details on the digital function, please refer to the
Application Programming Interface (API) Guide.
MSD209FG Features：
Analog RGB Compliant Input Ports
Three analog ports support up to 1080P
Supports PC RGB input up to SXGA@75Hz
Supports HDTV RGB/YPbPr/YCbCr
Supports Composite Sync and SOG (Sync-on-Green) separator
Automatic color calibration
VIF Input Support
Multi-standard analog TV receiver applications
Digital low IF architecture