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COLOR TELEVISION
LC30/40D9
CONTENT
Safety instructions...................................................................................... 1
Instructions on adjusting and testing.............................................................. 2
Trouble shooting........................................................................................ 6
Method of software upgrading...................................................................... 8
Briefing on LC30/40D9 and its working principle............................................... 10
IC BLOCK DIAGRAM................................................................................. 12
Wiring diagram.......................................................................................... 22
Serial NO. of parts..................................................................................... 23
Identification criteria for the bright spot and dark spot of the LCD screen............... 23
Troubleshooting guide................................................................................ 24
Exploded views......................................................................................... 27
Schematic diagram.................................................................................... 32
Attention: This service manual is only for service personnel to take reference with. Before servicing
please read the following points carefully.
Safety instructions
1 Instructions
1.1 Be sure to switch off the power supply before replacing or welding any components or
inserting/plugging in connection wire
1.2 Anti static measures to be taken (throughout the entire production process!):
1.2.1 Do not touch here and there by hand at will;
1.2.2 Be sure to use anti static electric iron;
1.2.3 It's a must for the welder to wear anti static gloves.
1.3 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.
1
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
would be unable to work and no way to get it repaired.
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:
Scope for operation 0----+50 C
Temperature
Scope for storage -20----+60 C
humidity Scope for operation 20%---85%
Scope for storage 10%---90%
2.13 Display of a fixed picture for a long time may result in appearance of picture residue on the screen,
as commmonly called "ghost shadow". The extent of the residual picture varies with the maker of
LCD screen. This phenonmenon 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. Wheng installing it please make sure to put it in place.
3.2 For service or instatallation 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.
Instructions on adjusting and testing
The adjustment of LC22K9 excludes 2.30
2.1 Adjusting and calibrating the equipment
PM 5518(video frequency signal generator), K-7253(VGA signal generator),CA210(white balancer)
2.2 Adjustment and calibration procedure
2.3 Adjusting and calibrating the monitor board
Place the monitor board on the testing jig, turn on the power supply and switch on the set to see if it
2
is normal.
2.3.1 Adjusting the white balance of monitor board
Push the "Rest" key and "OK" key under the cover of the remote control set, repeat the push, enter
the factory menu. Select factory reset to initialize the MONITOR
Input the DVI signal to monitor board. (K-7253 time339 pattern 630 8 gray degree signals, input the
DVI signal to socket with 26 cores of monitor board by way of patch panel). Adjust the intermediate
second and seventh gray degree with CA210 white balancer. Preset value of R,G,B CUT to
100,and R,G,B DRV to 150, then, adjust the second gray degree (brightness: about 9nit) by R,G,B
CUT, to set the color coordinates of second gray degree to 270, 283. Adjust R,G,B DRV to set the
color coordinate of seventh gray degree to 270 and 283.
Note: Because the values of R,G,B CUT and R,G,B DRV directly determines the values of
brightness and contrast at the DVI terminal of monitor board, the white balance should be
adjusted according to the preset value strictly. The value after adjusting should be within
+/-10 of the preset value.
2.3.2 Calibrating ADC of Monitor
After finishing the adjustment of 2.3.1, set the VGA signal to 1024X768 60Hz mode. Access the
pane signal and connect it to VGA terminal of monitor. Adjust h port of the picture to make the
picture fully occupy the screen. Enter the factory menu and select items for ADC calibration and
calibrate the ADC according to the indication on the screen.
2.3.3 Adjusting the white balance of monitor:
Input 8 gray degree signals of 1024X768 60Hz mode, push "display" key on the remote control
set, adjust brightness and contrast, to set the brightness of second gray degree to 5nit and seventh
as 400nit.
For the diagram of adjustment and calibration procedure, see diagram 1
3
Check if FLASH is written
Production of the main board and decoders on the line
Check Monitor board
Check decoders in media board
General assembly and combined calibration
Connect central signal source, check TV
functions (station skipping, analog
quantity control etc) . Check if the output
of speaker is normal
Input AV/S and HDTV signal and check
following functions of the terminals
Input VGA signal (one format), check if
display is normal under the PC status,
and functions (analog control), central of
line and field etc.
Check accessories, then packing
Figure 1. Adjustment and calibration procedure
B CUT and B DRV is fixed as 128. Adjust R G CUT,to make second degree of the color
coordinate as 270 283. Adjust R G DRV to set seventh degree of the color coordinate to 270
283. Adjust R G CUT and R G DRV again and again, until both of the two gray degrees are at
270 and 283.
2.4 Connect decoder board and push button board with the monitor board verified to be normal
(LC-30K9/LC40K9 power is as per connection diagram 203-L30K90-01JL whereas LC-22K9 is as
per 203-L22K90-01JL). After power on, observe if the display is normal.
Method to enter factory menu: Continuously push key of "VOL+" "Mute", "Video" to enter factory menu.
When the first line of each and every adjusting item is in the highest brightness push "ENTER" key
to select different adjustment items. When VGA and DVI are input, select "mode" and then push
4
"ENTER" key and select three color temperatures 6500K,9300K,12000K. Push "MENU" to quit
factory menu.
Notice: Adjustment of Media Box must be performed under the mode --"Nature" of picture.
2.5. White balance adjustment for Media Box TV channel
Continuously press keys of "multi-picture","<",">","Confirm" to
Enter the factory menu. Select "Calibration" "white balance adjustment"
under the submenu. Connect AV signal(K-7253 TIME381 PATTERN 630 8 degree of
gray signal). Use the white balancer to adjust both 2nd and 7th orders. Adjust
the brightness and contrast so that the 2nd order of brightness is 5 nit and
the 7th order of brightness 350 nit. Set B CUT and B DRV fixed as 128. Adjust
R,G CUT so that the 2nd order of color coordinates are 270 283. Adjust R,G DRV
so that the 7th order of color coordinates are 270 283. Repeat this adjustment
for R,GCUT and R,G DRV until the two levels of gray degree are both set to 270,
283.
2.6. White balance adjustment for VGA port of Media Box
Switch VGA signal to the mode of 1024x768 60 Hz. Access the 8 degrees of gray
signal and connect to the VGA port of Media Box. Continuously press keys of
"multi-picture","<",">","Confirm" to enter the factory menu. Select
"Calibration" "white balance adjustment" under the submenu. Use the white
balancer to adjust both 2nd and 7th orders. Adjust the brightness and contrast
so that the 2nd order of brightness is 5 nit and the 7th order of brightness 400
nit. Set B CUT and B DRV fixed as 128. Adjust R,G CUT so that the 2nd order of
color coordinates are 270 283. Set B DRV as fixed. Adjust R,G DRV so that the
7th order of color coordinates are 270 283. Repeat this adjustment for R,GCUT
and R,G DRV until the two levels of gray degree are both set to 270,283.
2.7.White balance adjustment for HDTV port of Media Box
After adjustment in 2.4.1 is over, connect HDTV signal to HDTV port of Media Box for adjusting the
white balance of HDTV port. Input the 8 degrees of gray signal in the mode of 1280 x 720 60
Hz(720p). Adjust the brightness and contrast so that Adjust the brightness and contrast so that the
2nd order of brightness is 5 nit and the 7th order of brightness 400 nit. Continuously press keys
of"multi-picture","<",">","Confirm" to enter the factory menu. Select "Calibration" "YpbPr white
balance adjustment" under the submenu. Adjust R,G CUT and R,B GRV so that both the 2nd and 7th
orders of gray color are 270 283.
Input 8 degrees of gray signal in the modes of 640x480 60 Hz(480 p)and 1920x540 60 Hz(1080
i)separately. Repeat the adjustment as above until the 2nd and 7th orders of gray are both 270 283.
3. Functional inspection
3.1 TV function
Enter search menu---auto search, connect central signal to RF terminal and check if there is missing
of station.
Input A21 signal and check the function of CCD.
3.2 AV/S HDTV terminal
5
Input HDTV signal to AV/S, and check if it is normal.
3.3 VGA connector
Insert VGA signal connector, input 640 x 480@60 Hz VGA format signal, and check if display is
normal. If there is interfere on the picture, push the auto-adjust key on the remote control set once
more, check if the display is normal.
Trouble shooting
Before servicing please check to find the possible causes of the troubles according to the table below.
1.Antenna:
Picture is out of focus or jumping Bad status in signal receiving
Maybe broadcast signal itself is not good
Check if the outdoor antenna is disconnected.
Check if the antenna is correctly oriented.
Fringe in picture Check if the antenna is correctly oriented.
Maybe there is electric wave reflected from hilltop or building.
Picture is interfered by stripe Possibly due to interference from automobile, train, high
shaped bright spots voltage transmission line, neon lamp etc.
Maybe there is interference between antenna and power
supply line. Please try to separate them in a longer distance.
There appear streaks or light color Check if interfered by other equipment and if interfered
on the screen possibly by the equipment like transmitting antenna, non
professional radio station and cellular phone.
6
2.TV set:
Symptoms Possible cause
Unable to switch the power on Check to see if the power plug has been inserted properly into
the socket.
No picture and sound Check to see if the power supply of liquid crystal TV has been
switched on. (as can be indicated by the red LED at the front
of the TV set)
See if it's receiving the signal that is transmitted from other
source than the station
Check if it's connected to the wrong terminal or if the input
mode is correct.
Check if the signal cable connection between video frequency
source and the liquid crystal TV set is correct.
Deterioration of color phase or color Check if all the picture setups have been corrected.
tone
Screen position or size is not proper Check is the screen position and size is correctly set up.
Picture is twisted and deformed Check to see if the picture-frame ratio is properly set up.
Picture color changed or colorless Check the "Component" or"RGB"settings of the liquid crystal
TV set and make proper adjustment according to the signal
types.
Picture too bright and there is Check if the contrast setting is too high.
distortion in the brightest area Possibly the output quality of DVD broadcaster is set too high.
It maybe also due to improper terminal connection of the video
frequency signal in a certain position of the system.
Picture is whitish or too bright in the Check if the setting for the brightness is too high
darkest area of the picture Possibly the brightness grade of DVD player(broadcaster)is
set too high.
No picture or signal produced from Check if the cable is disconnected.
the displayer if "XXX in Check if it's connected to the proper terminal or if the input
search"appears. mode is correct.
There appears an indication - Check if the TV set can receive input signal. The signal is not
"outside the receivable scope) correctly identified and VGA format is beyond the specified
scope.
Remote control cannot work Check if the batteries are installed in the reverse order.
properly Check if the battery is effective.
Check the distance or angle from the monitor.
Check if there is any obstruct between the remote control and
the TV set.
Check if the remote control signal- receiving window is
exposed to strong fluorescence.
No picture and sound, but only Check if the antenna cable is correctly connected, or if it has
hash. received the video signal correctly.
7
Blur picture Check if the antenna cable is correctly connected.
Of if it has received the right video signal.
No sound Check if the "mute" audio frequency setting is selected.
Check if the sound volume is set to minimum.
Make sure the earphone is not connected.
Check if the cable connection is loose.
When playing VHS picture search When being played or in pause VHS picture search tape
tape, there are lines at the top or sometimes can't provide stable picture, which may lead to
bottom of the picture. incorrect display of the liquid crystal TVIn this case please
press "auto" key on the remote control so as to enable the
liquid crystal TV set to recheck the signal and then to
display correct picture signal
Method of software upgrading
Steps of software upgrading are as follows:
1. Select a serial connection wire and a VGA connection wire and then connect them by means of a
patch panel;
2. Use a serial wire to connect the PC to the patch panel and set TV set to off state;
1. Open the software upgrade file holder and double click
FlashUpgraderNT(use under window 2000/XP/NT)
FlashUpgrader(use under window 98),
The following interfaces will show up after running the program:
8
Based on the computer features, set up the serial port(COM Port). Select corresponding serial port
(if it's unable to FLASH WRITE, change to another port). Baud is selected to be 115200. Then select
Reset Target After Download. Click FLASH pushbutton, it's ready to run. For other settings, please
refer to the Fig. Above (already defaulted by the system, normally no need to change).
4. Switch on TV set the FLASH write program begins to run;
5. After FLASH write is over, push button "cancel" will become flash. Then shut the main power supply
and it's OK just switch it on again.
Note: Do not shut the power off or turn the TV set on during the FLASH write. Otherwise it may
lead to no way for flash to rewrite.
9
Briefing on LC30/40D9 and its working principle
LC30/40D9 is a multi-media liquid crystal TV broadcast receiver covering all systems. 40/30" liquid
crystal display screen is used as its display device. It has all-system color receiving capability. It is also
provided with AV input, S-VHS input, high definition signal port of component Y Pr/Cr Pb/Cb, digital port
of DVI, PC VGA input port, AV output port, and earphone output port. Thanks to the two RF input ports
provided this TV set can realize browsing function of PIP,POP and multi-pictures both between video
signals and between video signal and AV,VGA,DVI signals. It is also equipped with a PCMCIA card
reader module, which can be connected with memory cards like CF,SD and SM, therefore capable of
playing the photos taken by digital camera.
This TV set is also provided with a PCMCIA card reader module and can connect memory cards like
CF, SD, SM for playing the photos taken by digital camera. This machine adopts the form of set-top-box
plus MONITOR. If the set-top-box is removed it is a standard computer displayer. If equipped with the
set-top-box it becomes a powerful TV receiver. So it's a flexible type of structure. The power supply is an
externally installed power adapter. The software provided can perform the control over the power supply.
Therefore the power consumption when in standby can be lower than 1 W. It's really a kind of
environmental protection energy saving "green" power supply, and up to the international advanced
level.
LC40D9/30D9 liquid crystal TV driving board is mainly composed of three plates which are
respectively video processing plate, digital processing plate and monitor plate. On the video processing
plate, RF signal goes through two integrated tuners and produces two routes of color all-TV signals,
which are connected together with two ways of AV signal by way of plug socket and then sent to 3230IC
on the digital processing plate for treatment. On this plate, TV,AV and the various ways of audio signals
VGA, DVI, YpbPr, YcbCr sent from the plug socket are subject to treatment in MSP3440IC. The
processed audio signals are then sent to Monitor plate for amplification treatment.
The digital processing plate in mainly intended to process various signals of TV and AV as well as
VGA, DVI, YpbPr, YcbCr on this plate itself.
DVI after processing in SII161IC and VGA, YpbPr, YcbCr after processing in AD9883 as well as TV, AV
signals(TTL signal)after processing in Gport 3230 are sent at the same time to PW181 for Sclar
treatment. The TV, AV signals that have been processed in Vport 3230 are sent to PW181 for treatment
only after deinterlacing treatment in PW1230. The signal processed in PW181 is subject to conversion
into DVI signal in IC SII170 before being output to Monitor plate for treatment.
Monitor plate functions mainly to process DVI signal from the digital processing plate and the VGA
signal from this plate itself. Furthermore, IC LX1722 also perform power amplification treatment for the
audio signal that has been processed in the video processing plate.
10
LCD TV System Block Diagram
Media Box
PCMCIA
Module
VGA
Switch AD9883
Y Pr Pb ADC PW181
SDRAM
Image Processor
Scaler
Mcu
PIP
Y Cr Cb OSD
AV IN PW1230 SiI170
S-Video 3D Filter VPC3230 Deinterlace DVI
uPD64083 Decoder
TV1 V-CHIP
RF TUNER1
RF TV2 VPC3230
TUNER2 Decoder
SDA SCL Z86229
V-CHIP FLASH
SDA555 II C BUS 29LV800TTC
Mcu
RXD/TXD
MAX232
power
MSP3420
M62494
SRS RS232
AUDIO
L/R
PROCESSOR
CONNECTOR
CABLE
MONITOR
CONNECTOR Box DC IN
power Connector
M62429
DVI monitor Lamp/
power panel
PW131 DS90C383
LX1722 VGA Image Processor
Scaler LVDS PANEL
Amplifier Mcu DRIVER
OSD
SPEAKER
A(19:0),
RAMWE, D(15:0),
RAMOE, BHEN, CPUTMS,
PortC PortB PortA ROMWE, CS(1:0), CPUTCK,
(7:0) (7:0) (7:0) ROMOE RD, WR CPUTDO CPUTDI NMI EXTINT RxD, TxD IRRCVR (1:0)
(1).PW181
PortD(7:0)
PortE(7:0)
PortF(7:0) Processor
2-Wire 16-bit Watchdog Interrupt IR
GPIO PWM ROM/RAM UART
Serial Turbo u P and Timers Controller Decoders
IC BLOCK DIAGRAM
Interface
Microprocessor Bus
VRGB OSD/CPU
Horizontal Processor OSD and CPU
(23:0) Video Port Memory
Image Memory SDRAM
Scaler Interface Controller
Sync Decoder
VCLK, VPEN, Auto Image Optimizer OSD
Color Space Memory
VVS, VHS,
Converter HDCP CRISP Bus
FIELD
12
Image SDRAM Display Port RGBE
Memory Out Bus
Scaler Frame (23:0)
OSD
Buffer Image Color Matrix,
Control &
Scaler Gamma Correction
Blend CLTs, Color Space RGBO
Video Expander (23:0)
GCLK, GFBK, Deinterlace Frame
GPEN, GVS, Buffer
GHS, GSOG Graphics Port Memory
DVS,
Controller Display
DHS,
GRGB Sync Decoder Spatial Timing
DEN,
Memory In
(47:0) Auto Image Optimizer Noise Generator
DCLK
Bus
Color Space Reduction
GCOAST, Converter HDCP MCLK DCLK UCLK
GREF,
GBLKSPL,
Dual PLL
GHSFOUT
Master Reset Clock Internal Block Diagram
Generator
MCLKEXT, DCLKEXT, *For internal clock generator
Reset
XI* XO*
(2).VPC3230
CIN Y Y
Analog Adaptive Color Mixer 2D Scaler Output Y OUT
VIN1 Front-end Comb Decoder PIP Formatter
Filter CrCb
VIN2 NTSC Cr Cr Panorama ITU-R 656 OUT
VIN3 PAL Mode ITU-R 601
AGC NTSC SECAM YCOE
VIN4 2 ADC PAL Cb Cb Contrast Memory
Saturation Brightness FIFO
Control
VOUT Tint Peaking CNTL
13
Y/G Y
Analog Processing LL Clock
RGB/ I 2 C Bus Sync
Component U/B Cr
YCrCb Matrix + H Sync
Front-End
FB Contrast Clock
V/R Cb
Saturation Generation V Sync
RGB/ Clock
4 x ADC Brightness
FB FB Gen.
YCrCb Tint AVO
20.25 MHz I 2 C Bus
Sound IF1 Loud- Loud-
De- Pre- speaker speaker
(3).MSP3450G
ADC processing DAC
modulator Sound
Sound IF2 Processing Subwoofer
Headphone
Sound DAC Headphone
I 2 S1 Processing
Prescale
I 2 S2
I2 S
Source Select
14
SCART1
DAC
SCART2 SCART
DSP SCART1
SCART3 Input ADC Prescale
Select SCART
DAC Output
SCART4 Select
MONO
SCART2
Error DYCO EXTDYCO9-EXTDYCO0
VCLY detection select
(4).UPD64083
DCYO9-DCYO0
AYI Clamp EXTALTF
10-bit ALTF
VRTY Y-ADC YCNR
VRBY Y-high freq. 10-bit AYO
Delay coring
EXTADINS Y-DAC CBPY
EXTDYCOS YCNR
ACI Bias KIL 4f SC
10-bit Y-high freq.
VRTC Line comb Chroma Recursive peaking
C-ADC filter mixer YNR
VRBC H H
C3 YCNR
YCNR Line comb MNNR
C-BPF & delay 10-bit ACO
4-Mbit filter Adjustment Y-DAC
flame Motion CBPC
delay detection
memory Line comb Recursive SDA
H H filter CNR I 2 C bus SCL
15
interface SLA0
H Y-Vertical
aperture RSTB
YCNR compensation
MNNR
WCV-ID ID-1
decoder encoder CKMD
8f SC 8f SC CLK8
ID-1
decoder 4f SC PLL FSCI
HV Non- BPF
counter standard
signal 10-bit FSCO
Sync detection fSC -DAC
CSI separation
XO
fSC
generator
XI
(5).SiI-170
PD
MSEN
ISEL/RST HTPLG
SDAS IIC
HDCP HDCP
SCLS Slave Register Encryption Keys
----------------- Engine EEPROM
HSYNC
Configuration
VSYNC DE Logic Block
IDCK+ Gen EXT-SWING
IDCK-
16
TXC+/-
PaneILink
Data TX0+/-
XOR encrypted
TMDS tm
D[23:0] Capture clear data data
Digital TX1+/-
DE Mask
CTL3
Logic Core TX2+/-
control signals
Block
PIX S
H S_DJTR
(6).SiI-161
O C K _INV
EX T_RE S Terminatio n
Control
DATA 24
RX2+ Data Recovery CTL3 Q E[23:0]
VCR SYNC2 SYNC2 24
RX2- CH2 QO[23:0]
CTL2
ODCK
DATA Panel DE
RX1+ Data Recovery Channel Inter- H SYN C
VCR SYNC1 SYNC1 Decoder CTL1
17
RX1- CH1 SYNC face VSYNC
DATA Logic SCDT
VSYNC CTL1
RX0+ Data Recovery CTL2
VCR SYNC0 SYNC0 HSYNC
RX0- CH0 CTL3
RXC+
RXC- VCR PLL
PDO
STAG _O UT
ST
ADCX4
C V BS
RD
WR
Analog Mux
ALE
PSEN
D[0 to 7]
A[0 to 15]
A[16 to A20]
ADC
(7).SAD555
ADC
slicer
Memory
Extension Acquisition
stack
IRAM
256X8 128 x 8 program ROM
128 x 8 acquisition interface
ADC
WDT interface
Memory
Extension Unit
Capture control XRAM
Bus SRAM
Arbiter 16K x 8bit
Peripheral Counter 0
PWM Bus Core
interface Counter 1
18
Interrupt
Port Logic Controller
p[0 to 4]
character
ROM
16K x 8
UART
RAM/ROM Interface
V
SFRs
clock & Display logic H
sync
system
CLUT BLANK/COR
Display
Regs
FIFO
R
B
G
(8).LX1722
VDD 25 10 SLEEP
1 VREF
UVLO
PVDD
LISN 27 & 4 V25
REFERENCE 5V
+ 24 CN
220mV Reference
CLOCK 28 SYNC -
RPWM 5 OSC CLK
24 PVDD
CPWM 6
5V
26 CP
CURRENT SENSE Reference
LEAOUT 14
23 LP+
LEAIN 13 FAULT
TIMER OUTPUT 22 LN+
DRIVERS
ERROR AMP
LAMPOUT 9 &
LOGIC 21 LN-
S Q
CLK R Q 20 LP-
LIN- 8
MUTE 15 LFAOUT
LIN+ 7
INPUT AMP MUX
MUTE 17 LFBK-
2.5V 16 LFBK+
FEEDBACK AMP
LMUTE 11
2.5V
19
(9).AD9883
8
R AIN CLAMP A/D R OUTA
8
G AIN CLAMP A/D G OUTA
8
B AIN CLAMP A/D B OUTA
MIDSCV
HSYNC DTACK
SYNC
COAST PROCESSING HSOUT
CLAMP AND CLOCK
GENERATION VSOUT
FILT SOGOUT
REF REF
SCL BYPASS
SERIAL REGISTER
SDA AND
A0 POWER MANAGEMENT AD9883A
20
MA[13:0]
MD[15:0]
MCLK
MCLKFB
MRAS
MCAS
MWE
(10).PW123
YUV Interlaced Display
V601 Deinterlacing
MWE
I-Channel Unit
Video Memory
V656 Controller
Input YUV / and Video
RGB
Component B-Channel Line Buffer Enhance
Up-Scaling
Down-
PVVS
PVHS
Scaling
PVCLK
CREF
21
Sync DEN
SVVS
SVHS
Decoder
Digital
SVCLK
Display Port
DGVS Input DGRGB[23:0]
DGHS Unit Memory Unit (dual pixel)
DGCLK
DHS
RESETn MCLK DCLK Analog DVS
TCK
Display DCLK
Display
TDI Timing DENR
Programming Unit Port
TDO PLL and DENG
TMS DENB
Oscillator
TRSTn
SCL
SDA
ADB
ADG
ADR
RSET
2WA1
2WA2
XTALI
CGMS
COMP
XTALO
VREFIN
MCUCS
MCUWR
MCURDY
MCUCMD
VREFOUT
MCUD[7:0]
MCUA[7:0]
WIRING DIAGRAM
Serial No. of Parts
203
667 203-L40D90-10 203-L30D90-11 203-L30D90-12
Remote sensor 301-UL40D9-21RA 301WL40D9-04 301-UL40D9-21RA
adapter 302-AD12C-03 302-AD12C-03 302-AD13D-02
LCD PANEL 335-40002-00 335-30002-00 335-29002-00
Media box 615-10363-00 615-10364-00 615-10394-00
Video processing 667-L40D9-40 667-L40D9-40 667-L40D9-40
Data processing 667-L40D9-69 667-L40D9-69 667-L40D9-69
MONITOR 667-L40D9-25A 667-L32D9-25 667-L30D9-25
PCMCIA 667-L40D9-90 667-L40D9-90 667-L40D9-90
Identification criteria for the bright spot an