Xoceco LC-30K9A-(W), LC-40K9A Schematic

COLOR TELEVISION

LC-30K9A(W)

LC-40K9A

CONTENT

Safety instructions………………………………………………………………………..…

Instructions on adjusting and testing…………………………….…….…………………

Trouble shooting……………………………………………………….……………………

Principle analysis of L30K9A(w) and 40K9A…………………………….………..………….

BLOCK DIAGRAM…………………………………………………………………………

Wiring diagram……………………………………………………………..……………....

Serial No. of Parts…………………………………………………………………………….…

Identification criteria for the bright spot and dark spot of the LCD screen………..….

Troubleshooting guide………………………………………………………………..……

Exploded views…………………………………………………………………………..…

Schematic diagram…………………………………………………………………….…..

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30

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:

Temperature Scope for operation

Scope for storage

humidity Scope for operation

Scope for storage

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.

0—+50 C

-20—+60 C

20%—85%

10%—90%

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

1 Adjustment and calibration equipment

PM5518(Video signal generator), K-7253(VGA signal generator),CA210(White balancer)

2 Flow of adjustment and calibration

For flow of adjustment and calibration, see Fig. 1

2

f

g

Check if DDC has been FLASH written.

Production of CPU board and analog board on

the line.

Check the CPU board and analog board

Combined test for general assembly

Connect to central signal source, check i

various TV functions (station skipping, modulate

quantity control etc), check if the output o

earphone and speaker are normal

Input BS signal and check various BS functions

Input AV/S signal and HDTV signal,, check

various functions under AV/S terminal

Input VGA signal and check if display is normal

in the state of PC and various functions (analog

quantity control, line/field center etc.)

Preset before outgoing from factory

Check accessories and then packin

Fig.1 Flow process of adjustment and calibration

3 Adjustment and calibration of Monitor board

Place the monitor board on to testing jig, put the power on, start the set, and see if it is normal.

3.1 White balance adjustment of monitor board

Push the keys “Sleep” and “Confirmation” inside the cover of remote control, repeat the operation,

3

enter factory menu, and select FACTORY RESET to initialize the MONITOR.

Input DVI signal into Monitor board (K-7253 TIME339 PATTERN 630 eight grades of grey density

signal. DVI signal is input to 26 cores socket of Monitor board through the conversion board). Adjust the

central second and seventh grade grey density with CA210 white balancer. First preset value of R,G,B

CUT to 100,R,G,B DRV to 150. Then, adjust R,G,B CUT for second grade grey density (brightness about

9nit), so that the color coordinate of second grade grey density are set to 270,283. Then adjust R,G,B

DRV to set the color coordinates of seventh grade grey density (brightness about 400nit ) to 270,283.

Notice: Because the value of R,G,B CUT and R,G,B DRV directly decides the brightness and

contrast of DVI terminal of monitor board,(the value of brightness and contrast can be adjusted without

user menu), the adjustment of the white balance should be made according to the preset value strictly,

and the value after the adjustment should be within +/-10 of the preset value.

3.2 ADC calibration of monitor

After the completion of the adjustment in 2.3.1, switch 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 cover the screen. Enter factory menu and select ADC item of adjustment, and calibrate ADC

as per the prompt on the screen

3.3 White balance adjustment of the monitor

Input eighth grade grey density signal of the mode 1024X768 60Hz. Push “Display” key on the

remote control set, adjust brightness contrast to set brightness of the second grade to 5nit and that of the

seventh grade to 400nit. Fix B CUT and B DRV at 128. Adjust R, G CUT,to set the second color

coordinates to 270, 283. Adjust R,G DRV,to set the seventh grade color coordinates to 270, 283.

Repeat the operation for R, G CUT and R, G DRV until both of the two grades grey density are set to

270,283.

4 Adjustment of the decode plate of Media Box

Connect the decoder board, press key board and the Monitor board that is already confirmed as

normal as per the wiring diagram 203-L30/40K90-02JL. Put the power on and observe if the display is

normal.

Method of entering factory menu:Continuously press keys of”VOL+”“Mute”“Video”to enter the

factory menu. When the first line of each adjustment item is in high brightness, push the “ENTER” key to

select different adjustment item; push “ENTER” key after the mode is selected with VGA input and select

three color temperatures 6500K,9300K,12000K; push “MENU” to quit the factory menu.

Notice: The Media Box adjustment should be per f or m e d under the picture mode of “Nature”

4.1 EEPROM initialization

Enter the first page of factory menu, push “ENTER” key after selecting Clear EEPROM, shut off the

power supply after the appearance of “OK”.

4.2 VGA channel adjustment

4.2.1 VGA channel mode preset

Input VGA signal of K-7253(PATTERN 5:Final Test),select TIME301, push”AUTO”key to

automatically adjust to make the picture fully cover the screen. Likewise, automatically adjust TIME302,

TIME303, TIME311, TIME313, TIME315, TIME316, TIME317, TIME319 and TIME339 respectively.

4.2.2. ADC adjustment of VGA channel

Input the signal of 64 grades of grey density to K-7253 TIME311,PATTERN474, set ADC-gain to

max.(not exceeding 20) so that the two brightest grades are distinguishable.

4.2.3 White balance adjustment of VGA channel

Input the signal of 8 grades of grey density to K-7253 TIME311,PATTERN471, enter the adjustment

4

menu of white balance, use the white balance to adjust second and seventh grade.

Select mode as 6500K,adjust offset_R, offset_G, offset_B,so that the second grade color

coordinates are 313,329 and the brightness about 5nit. Fix gain_R to be 128, adjust gain_G, gain_B so

that seventh grade color coordinates are 313, 329. Adjust offset_R, offset_G, offset_B and gain_R,

gain_B,again and again until two grades of grey density are both set to 313,329.

Select mode as 9300K,adjust offset_R, offset_G, offset_B,so that the second grade color

coordinates are 281,311 and the brightness about 5nit. Fix gain_G to be 128, adjust gain_R, gain_B so

that seventh grade color coordinates are 281, 313. Adjust offset_R, offset_G, offset_B and gain_R,

gain_B,again and again until two grades of grey density are both set to 281,311.

Select mode as 12000K,adjust offset_R, offset_G, offset_B,so that the second grade color

coordinates are 270,283 and the brightness about 5nit. Fix gain_B to be 128, adjust gain_R, gain_G so

that seventh grade color coordinates are 270, 283. Adjust offset_R, offset_G, offset_B and gain_R,

gain_G,again and again until two grades of grey density are both set to 270,283.

Notice: The value of gain_R, gain_G, gain_B can not exceed 128.

4.3 TV channel adjustment

4.3.1 VCO,OPTION, sub-brightness, and sub-contrast adjustment

Input the AV color bar signal(PM5518 COLOUR BAR 100%)to VIDEO 1 terminal, enter the first

page of factory menu, select auto color, push key “ENTER”. About two seconds later, OK will be

displayed, showing the adjustment is over. Adjust the value of Option to 9,S-bright to 124,S-contrast to

140.

4.3.2 White balance adjustment of TV channel

Input AV signal (PM5518,grey grade signal), enter the adjustment menu of white balance,use the

white balancer to adjust the second and seventh grade grey density. Adjust

offset_R,offset_G,offset_B,so that the second grade color coordinates are 270,283 and the brightness

about 5nit.Fix gain_B to be 133, adjust gain_R,gain_G, so that the seventh grade color coordinates are

270, 283. Adjust offset_R,offset_G,offset_B and gain_R,gain_G, again and again until two grades of grey

density are both to 270, 283.

4.4 White balance adjustment of D4 channel

Connect YPbPr signal of K-7253 to D4 terminal,input eighth grade grey density signal of

TIME380(480i)PATTERN471,adjust S-bright to 120,S-contrast to 140.Enter the adjust menu of white

balance,use the white balancer to adjust second grade. Adjust offset_R, offset_G, offset_B,so that the

second grade color coordinates are 270,283 and the brightness about 5nit.

Separately input eight grades of grey density signal in mode of TIME392(480p), TIME394(720p)

and TIME396(1080i). Repeat it so that the second grade color coordinates are 270,283 and the

brightness about 5nit.

5 Functional Inspection

5.1 TV function

Enter the search menu → auto search, connect RF-TV terminal to the central signal source, check

if there is station skipping.

5.2 BS terminal

Input satellite signal to RF-BS terminal,check if the picture and sound of three channels,

BS-5,BS-7,BS-11, are normal. Switch to BS-5 channel,Use oscillograph to check if the terminal

output (Bit Stream/Detection Out) is normal(Bit Stream is 1 Vpp data flow; Detection Out is 1.34 Vpp

detective wave signal).

5.3 AV/S,D4 terminal

5

Connect AV/S, HDTV signal, check if they are normal.

5.4 VGA connector

Insert VGA signal connector, input format signal 640 x 480@60 Hz VGA, check if the display is

normal. If there is interfere in picture, push the adjustment key on the remote control set one more

time, check if the display is normal.

5.5 PCMCIA channel inspection

Insert PCMCIA card, switch it over to this channel, and check if the display is normal.

5.6 Sound channel inspection

Check if the output of each speaker and earphone channel is normal.

5.7 For factory preset, see table. 1

Table 1 Factory Preset

Item Factory

Preset

Picture

mode

Sound

mode

N/R WEAK SPEAKER ON AV1/DECODER AV1

SCREEN 16:9 HEAD

NATURE OSD

NEWS VGA color

Item Factory

Preset

Japanese BALANCE 50

language

9300 BS POWER ASSOCIATE

temperature

ON SRS ON

PHONE

Item Factory

Preset

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

shaped bright spots

There appear streaks or light color

on the screen

 Possibly due to interference from automobile, train, high

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.

 Check if interfered by other equipment and if interfered

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

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

Picture too bright and there is

distortion in the brightest area

Picture is whitish or too bright in the

darkest area of the picture

No picture or signal produced from

the displayer if “XXX in

search”appears.

There appears an indication -

“outside the receivable scope)

Remote control cannot work

properly

No picture and sound, but only

hash.

 Check if all the picture setups have been corrected.

TV set and make proper adjustment according to the signal

types.

 Check if the contrast setting is too high.

 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.

 Check if the setting for the brightness is too high

 Possibly the brightness grade of DVD player(broadcaster)is

set too high.

 Check if the cable is disconnected.

 Check if it’s connected to the proper terminal or if the input

mode is correct.

 Check if the TV set can receive input signal. The signal is not

correctly identified and VGA format is beyond the specified

scope.

 Check if the batteries are installed in the reverse order.

 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.

 Check if the antenna cable is correctly connected, or if it has

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

tape, there are lines at the top or

bottom of the picture.

 When being played or in pause VHS picture search tape

sometimes can’t provide stable picture, which may lead to

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

8

Short introduction and w or k i ng principle of LC-30K9A(W)/LC-40K9A

This type series of the machine set takes the form of STB plus MONITOR. Without STB, it is a

standard computer monitor. With STB, it is a CTV receiver with powerful functions.

For work principle flow of this series, refer to block diagram of a complete set.

The RF signal of broadcast TV, with the help of tuner TUNA02, turns out color full TV signal TV-IN2

and second sound IF signal. The RF signal of satellite TV with the help of BS tuner TUNA01, produces

color full TV signal TV-BS and left and right sound signal R/L. TV video signal of TV-IN2 and TV-BS after

the selection by PI50V330(U40-1) is sent to video decoder VPC3230(U29). The YcbCr and PCMCIA

input from commuter board and the YUV after selection in U40-2 are also sent to U29 respectively.

Furthermore AV1/SVHS,AV2 are also sent to U29. After the selection of above four video signals are

subject to selection and decoding in U29 and then sent in format of 8 bi ITU-R656 to FLI2310(U13)for

progressive treatment. One route of the video signal that is subject to selection in U29 is sent to output

through AV.

Two routes of D4 signal, YpbPr, after the selection in BA7657F(U11), are sent to MST9883(U30),

where they are sent, after A/D conversion, to U13 in the format of 24 bit YUV.

24bit RGB signal is output and sent to main processing chip JAG-ASM(U12) after the above two

routes of signal are processed in terms of matrix, color density, and tint in U13. RGB signal of computer

VGA is also sent to U12, where the two routes of signal are subject to selection and processing for

picture format. One route RGB signal of VGA undergoes A/D conversion before being subject to

selection and digit display processing together with another route of signal, including OSD, GAMMA

calibration, brightness and contrast processing. These signals are changed into the format of 1024*768

and output in 24 bit RGB signal. This signal is then converted into DVI signal(four pairs of differential

signal) in SiI170 and sent to MONITOR.

In MONITOR, four pairs of differential signal from STB are sent to PW131(N301). As there is also

VGA input terminal in N301, the two signals, after the selection and formatting, output to output in 48bit

RGB signal and sent to LVDS converter DS90C383(N201, N202), where they are converted to four pairs

of low voltage differential signals and then send to LCD screen for picture display.

The audio signal of left and right sound channels D4, YCBCR and PCMCIA undergoes selection in

HEF4052(U34), and is then sent to MSP3420(NA04). AV1/SVHS and AV2, after selection in

HEF4052(U34), is sent to NA04 together with SIF of TUNA02 and R/L of TUNA01 as well as R/L of

VGA two tuners and R/F of VGA. In NA04, SIF is demodulated into audio signal before being switched

for selection with other four routes of R/L signal. The selected R/L after the processing in volume and

sound effect is then output as follows: three R/L routes for left and right sound channels, one route for AV

OUT, and another route for M62494(N203)of SRS sound field processor for SRS processing. The signal

output to left and right sound channels is sent to MONITOR, and after sound power amplification in

LX1722(N404), is for driving the speaker. The last route, after power amplification of earphone in

TLE2142, is for driving the earphone.

The power supply is through an adaptor, where it is converted to different power supplies required

by monitor and STB.

9

LC30K9A(W)/40K9A BLOCK DIAGRAM

Media BOX

VGA

BS-RF

RF

AV1-V/S-Y

SVHS-C

AV2-V PCMCIA

YCbCr

AV-V OUT

D4-1

D4-2

BA7657F

U11

R/L

TUNA01

TUNA02

SIF

U40-2

PI50V330

V

MST9883

TV-BS

TV-IN2

PI50V330

VIDEO DECODER

VPC3230

U30

ADC

U40-1

TV

U29

RGB

ITU-R656

8bit

24bit YUV

U13

DEINTER

LACER

FLI2310

U14

SDRAM

2

I C BUS

U3

EEPROM

RGB 24bit

U12

SCALER

JAG-ASM

U19

SDRAM

U20

SDRAM

U2

MICRO-CONTRLER

TSC80251G2D

RGB 24bit

CONNECTOR

U38

DVI

SiI170

KEY BOARD

TO MONITOR

U4

FLASHMEMORY

IR

SIF AV1/SVHS-R/L AV2-R/L VGA-R/L

BS-R/L

PCMCI-R/L (D4-1)-R/L (D4-2)-R/L YCbCr

AV-R/L OUT

HEF4052

NA03

R/L

NA04

TO MONITOR

HEF4052

U34

AUDIO

PROCESSOR

R/L

MSP3420

NA05

SRS 3D STEREO

CONTROLLER

M62494

R/L

NA08

TLE2142

R/L

HEADPHONE

10

MONITOR

N401 M62429E

R/L

N404 LX1722 Amplifier

VGA

Media BOX

CONNECTOR

DVI

N301 Image Processor Scaler MCU OSD

48bit

BOX power

monitor power

DXE N201 DXO N202 DS90C383 LVDS DRIVER

DC IN connector

2 x 4

lamp/ panel

PANEL

SPEAKER

11

IC BLOCK DIAGRAM

1.MSP3420

Pins description:

2,3 PIN:SCL,SDA applied for control the operation of IC . 27,28 PIN:output left and right sound channel R/L to speaker processor. 36,37 PIN:AV OUT of sound R/L. 47,48 PIN:D4-1/D4-2/PCMCIA/YCbCr selected input R/L. 50,51 PIN:Input of VGA. R/L 53,54 PIN:Input of AV2/SVHS(AV1) R/L. 56,57 PIN:Input R/L of BS 67 PIN:Input TV SIF.

12

2.VPC3230

Pins description:

4 PIN: Input U of PCMCIA/YCbCr. 5,73 PIN: Input Y of PCMCIA/YCbCr. 6 PIN: Input V of PCMCIA/YCbCr. 31-34, 37-40 PIN:output format signal of.ITU-R656 70 PIN:Video of AV OUT 71 PIN:Input C of SVHS. 72 PIN:input Video (SVHS in priority) of Y or AV1 of SVHS. 74 PIN:input Video of AV2. 75 PIN:input Video of TV/BS.

13

3.PW131

A/D

R

G

B

Clamp

Color Space

Converter

DVI

Receiver

CLK

RGB

HS,VS

RXC +/-

RX0 +/RX1 +/RX2 +/-

RTERM DEN

CLK

RGB

HS,VS

Data MUX

Auto Image

Optimization

DRGB (23:0)

DGRGB(23:0)

DVS, DHS, DEN, DCLK

NMI

Interrupt

Controller

RxDTxD

UART

Watchdog

and Timers

Processor ROM/

RAM Interface

JTAG Debugger

16-Bit

Microprocessor

PortA(7:0)

GPIO PWM

IR

Decoder

A

(19:1)D(15:0)CS(1:0)

2-Wire

Serial

Microprocessor Bus

Display Timing

Generator

M

e

m

o

r

y

O

u

t

B

u

s

Memory

Buffer

Processor

Memory

Interface

M

e

m

o

r

y

In

B

u

s

OSD

VYUV(7:0)

VCLK VPEN

PW131 ImageProcessor

Internal Block Diagram

ADC

DVI

VIDEO

PORTD (7:0)

Sync

Processing

HS

HSYNC,

VSYNC

SOG

Stripper

SOGIN

FILT PLL

CLK

R

AIN

G

AIN

B

AIN

A/DClamp

VS

Scaler

Color

Matrix

OSD

and

Gain

Color

Lookup

Tables

Color

Space

Expander

PowerOn

Reset

RESET

Reset

XI XO

PLL and

Oscillator

MCLK DCLK UCLK

14

4.JAG-ASM

15

5.SiI170

16

6.LX1722

17

WIRING DIAGRAM

1.L30K9A(W)

18

2.L40K9A

19

Serial No. of Parts

Part Name

LC-30K9A(W) LC-40K9A

Analog board

assy’

CPU board

assy’

Infra-red

receive assy’

667-L30K9A-56 667-L40K9A-56

667-L30K9-09 667-L40D9-09

KEY board

assy’

PCMCIA board

assy’

Adapter

Remote control

Display screen

MONITOR board 667-L30D9-25 667-L40D9-25

Keysets assy’ 667-L40D9-46

Audio keysets

assy’

AD-13D

302-AD13D-02

RC-Z07-0A/301-ZL22K9-070A

V296W1-L

335-29002-00

Part NO.

667-L30K9A-53

667-L30K9-05

667-L40D9-90

AD-12C

302-AD12C-03

TM396WX-7

335-40001-00

667-L30K9-46

Main components and No. Remark

NA04 MSP3420(353-34200-10)

NA05 M624494(353-62494-20)

U12 JAG-ASM(353-34200-10)

U38 SiL170(353-01700-60)

U13 FLI2310(353-23100-00)

U29 VPC3230(353-32300-80)

U30 MST9883(353-98830-10)

U2 TS80251(353-80251-10)

Self

N8 ES6420(353-64200-20) Self

N301 PW131(353-01310-30)

N404 CX1722(353-17220-30)

N201 DS90C383(353-03830-70)

Self

produced

Self

produced

Self

produced

Self

produced

Self

produced

20

Identification criteria for the bright spot and dark spot of the LCD screen

Category criteria

Q’ty allowed Distance between two spots

15" 20" 22" 30" 40" 15" 20" 22" 30" 40"

Bright

spo

t

One single

spot

2 neighboring

spots

≤5 ≤2 ≤5 ≤2 ≤3

≥15mm

≤2 ≤1 ≤2 ≤1 ≤1

Total No. ≤5 ≤2 ≤5 ≤2 ≤3

≥15mm

≥10mm

≥5mm

Dark

spots

One single

spot

Two

neighboring

≤6 ≤7 ≤5 ≤4 ≤10

≤2 ≤2 ≤2 ≤1 ≤5

spots

Total No. ≤6 ≤7 ≤5 ≤4 ≤10

Total defected point ≤8 ≤7 ≤5 ≤4 /

Notes:

1. Definition of defected point (bright spot, dark spot): It is identified as a defected point if its

area exceeds 1/2 of a single picture element (R,G,B).

2. Definition of bright spot: It is identified as a bright spot if it is bright in the state of dark field

and its bright size remains unchanged

3. Definition of dark spot: It is identified as a dark spot if it is dark in the state of white field and

its dark size remains unchanged

4. Definition of two neighboring points: Defects of a group of picture elements(RB,RG,GB).

21

TROUBLESHOOTING GUIDE

t

(press remote control or BOX power button,then the red indication lamp power off,in normal condition the lamp change from red to blue.)

NO SCREEN DISPLAY,BACK LIGHT ON

Check whether power

supply IC

normal

Check whether N205 pin3 the

voltage changing low level

Back light off

No screen display,back

Check wether back ligh power +14V is normal

Check whether N407 pin 7 the voltage +5V output

no

Flash write process in N407

light off

normal

no

Obviate back light

power supply is normal

Check power supply

Replace N205

circuit and IC

22

NO SOUND

no

Replace N401

Check whether audio input

no

of N401 pin1 and 8

has

Check whether N401 pin2

and pin7 have output

has

Check the pin2 of N404

output triangle waveform

has

Check whether the front of

L404,L405,L406,L407outpu

ts waveform (ratio 1:1)

no

Replace N404

Check whether

input waveform of

NA05 pin1 and pin2

no

Check whether NA204

have input

no

Check have signal input

has

Replace NA05

has

Replace

NA204

23

CPU DIGITAL BOARD TROUBLESHOOTING GUIDE

r

DISPLY “BOX SEARCHNG”

Test U38 waveform

from TXC±,TX0± ~

Test whether U38 powe supply +3.3V

Test wether U38 pin2 pin4 pin5 pin57 waveform

TX2±

no

yes

Replace U38

no

Check path turned 5V into

3.3v

Test whether power supply 1.5v;

2.5v; 3.5v

Test oscillator X01 waveform

yes

Check U8 rest pin2

Replace U12

yes

normal

no

Check LDO circuit

abnormalit

Replace U8

24

NO PICTURE

R

A

d

pply

r

No Display “box

searching”

Check whether display

LOGO in power on

Display “BOX

searching”

Check MONITOR

board power supply

yes

Replace MONITO board

no no

Check whether

monitor board X402

connecting well

Replace powe adapter

yes

Check If this set can

can no

be operated by

R/C or push key?

VGA yes

ll channels are

without pictures

Which channel

without picture?

no D4 TV

change

no

CPU board

yes no yes

Calibrate CPU boar

Enter factory adjustment menu,execute CLEAR EEPROM, after operation shut off and re-put

on to check if there is a picture?

Screen display

Determine

modulate power

su

NO-SIGNAL

no

Replace CPU board

+5V-V

Check U40

no

Determine the

synchronization signal of

no

65th foot of U30

no

Determine the

signal of

TP1,TP2,TP3,

they should be

1VPP

Determine pin3

foot of P32 if there

is 1VPP signal or

noise wave?

yes yes

Replace

U30

yes

Replace U13

Replace

CPU board

Determine 56th foot of U29

if there is 15.734KHz line

synchronization signal?

Replace

TUNA02

no

Replace U29

25

L30K9A(W) EXPLODED VIEWS

33

32

31

30

42

41

40

39

38

37

36

35

34

1

2

26

25

24

23

22

21

20

19

27

28

29

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

Exploded views list(LC30K9A(W))

27

NO. Name NO. Name

21 stand base 42 front cover board

20 stand base cover(left) 41 IR receiver

19 stand base board 40 remote sensor board

18 terminal panel 39 panel connect assy'(upper)

17 terminal supporter 38 speaker socket connector

16 connector cover(left) 37 socket wp4-4

15 connector piece(left) 36 column supporter

14 speaker's back cover(left) 35 speaker grille(right)

13 loudhailer(left) 34 speaker's front cover(right)

12 socket wp2-9c(left) 33 loudhailer(right)

11 speaker's front cover(left) 32 socket wp2-9c(right)

10 speaker grille(left) 31 speaker's front cover(right)

9 shielding board 30 screw

8 monitor board 29 connector piece(right)

7 shielding board 28 connector cover(right)

6 panel connect assy'(down) 27 back cabinet

5 main board of stand 26 column

4 panel connect board 25

screw

3 LCD panel 24 stand cover

2 LED column 23 line buckle

1 acryl panel 22 stand base cover(righ)

1

LC40K9A EXPLODED VIEWS

2

3

4

5

21

20

19

18

17

16

15

14

13

12

11

10

8

7

9

38

37

36

35

34

33

32

31

6

22

23

24

25

26

27

28

29

30

Exploded views list(LC40K9A)

NO. Name NO. Name

21 line buckle

20 stand cover

19 column

18 media box

17 cover 38 speaker

16 speaker's back cover 37 corner connect parts

15 back cover 36 transition parts(A)

14 signal cable cover 35 bearing bracket(small)

13 IR receiver board 34 monitor board

12 pnael connect parts(left) 33 shielding board

11 screw 32 shielding board

10 LED column 31 shielding cover

9 wall connect parts 30 shielding cover

8 transition parts(B) 29 socket

7 pnael connect parts(upper) 28 socket

6 bearing bracket 27 connect piece

5 screw 26 screw

4 speaker's front cover 25 equip weight board

3 front cover 24 screw

2 LCD panel 23 stand ornamental cover

1 acryl panel 22 ornamental piece

L30K9A(W) SCH.

L40K9A SCH.

4321

203-L30K90-03

D

VCC33EVCCL

VCC33P

2 Ground are connected atboard layout thru a thicktrace

D

R24 0 OHM

12

CB2

0.1UF

CB3

0.1UF

CB4

0.1UF

CB5

0.1UF

12

CB6 10UF

CB7

0.1UF

CB8

0.1UF

CB9

0.1UF

12

CB10 10UF

CB11

0.1UF

12

CB12

place near powerconnector

10UF

C15

100UF

C

VCC33

CB26

0.1UF

CB13

0.1UF

CB27

0.1UF

ES60x8

CB14

0.1UF

CB15

0.1UF

CB29

0.1UF

CB16

0.1UF

CB30

0.1UF

CB17

0.1UF

CB18

0.1UF

CB32

0.1UF

CB19

0.1UF

VCCA VCC

L8 FERB

CB25

0.1UF

12

CB23 100UF

12

CB20

0.1UF

12

CB22 10UF

X2

1 2

Power

C

CB34 10UF

24C01

VCC

B

CB46

VCC33

CB36

0.1UF

CB37

0.1UF

CB38

0.1UF

SDRAM

CB39

0.1UF

VCC

CB40

0.1UF

No need to installEZ1085 circuitry ifJ12 provide +3.3V

VCC

12

CB48

A

1 2 3 4

0.1UF

CB50 OPEN(10UF)

VCCA

CB53

0.1UF

WM8706

12

CB54 10UF

CB55

0.1UF

12

CB56 10UF

3.3V REGUALTOR

N13 2830/3.3V

3

IN

1

OUT

ADJ

VCC33

2

12

FRONT

B

EZ1085

CB47

100UF

ADJ

INP

OUT

A

87654321

203-L30K90-03D

D

V4

847

VS1# VS2# PC_CD1# PC_CD2#

VCC

A[2..9]

R11

10K

R12 10K

VCC

N3A

1 2

74HCT32 N3B

4

5

74HCT32

N3C

9

10

74HCT32

C10

0.1UF

GND

N5A

2

A

3

B

1

G

74HCT139

N5B

14

A

13

B

15

G

74HCT139

VCC

C14

0.1UF

GND

2

HD[0..15] DD[0..15]

HD[0..15]

C

HA[0..2]

B

HA[0..2] DA[0..2]

HIORDY

HIOCS16#

VCC

HD0 HD1 HD2 HD3

HD4 HD5 HD6 HD7

HD8 HD9 HD10 HD11

HD12 HD13 HD14 HD15

HA0 HA1 HA2

HWR#

HRD# DRD#

HRD#

HIORDY HRST#

HRST#

HIRQ HCS3# HCS1#

LD[8..15]

HIRQ DIRQ HCS3# DACS3#

HIOCS16# DIOCS16#

LD[8..15]

C12

0.1UF

GND

A

LCS2#

RST#

RRN1 47X4

RRN2 47X4

RRN3 47X4

RRN4 47X4

RRN5 47X4

RRN6 47X4

RRN7 47X4

LD15 LD14 LD13 LD12 LD11 LD10 LD9 LD8

LCS2# RST#

DD0

18

DD1

27

DD2

36

DD3

45

DD4

18

DD5

27

DD6

36

DD7

45

DD8

18

DD9

27

DD10

36

DD11

45

DD12

18

DD13

27

DD14

36

DD15

45

DA0

18

DA1

27

DA2

36 45

DWR#

18 27

DIORDY

36 45

18 27

DACS1#HCS1#

36 45

N4

3

D1

4

D2

7

D3

8

D4

13

D5

14

D6

17

D7

18

D8

11

CLK

1

CLR

2

Q1

5

Q2

6

Q3

9

Q4

12

Q5

15

Q6

16

Q7

19

Q8

74F273

VCC

C11

DWR#

DACS1#

0.1UF

GND

VCC

C13

0.1UF R21 33 OHM

GND

PC_RST PC_LOW# PC_HI# IO/MEM CNTLA CNTLB CNTLC CSB

VCC CB31

PC_HI#

DACS3#

PC_LOW#

DACS3#

IO/MEM DACS3#

DRD#

DACS3#

DWR#

CNTLA CNTLB CNTLC CSB

N11 1117/3.3V

IN3OUT

ADJ

1

DAC ML DAC MC DAC MD WM8706 CSB

DD0 DD1 DD2

DD4 DD5 DD6 A8 DD7

WLAT

3

CE_H#

6

CE_L#

8

OE#

4

Y0 Y1 Y2 Y3

VCC

IORD#

5 6 7

WE/P#

12

IOWR#

11 10 9

12

C6 47UF

N2

3

D0

4

D1

7

D2

8

D3

13

D4

14

D5

17

D6

18

D7

1

OC

11

CLK

2

Q0

5

Q1

6

Q2

9

Q3

12

Q4

15

Q5

16

Q6

19

Q7

74HCT374

AUX2 AUX3 AUX6 AUX7

V1

FDN338P

A2 A3 A4 A5DD3 A6 A7

A9

DIRQ

R19 33 OHM R20 33 OHM

R22 33 OHM

VCC33

PC_VCC

12

GND

R13

4.7K

C5 100UF

V2

FDN338P

12

47UF

0.1UF

C7

IO/MEM 0 = Memory Cycle, activate OE# and WE/P# 1 = I/O Cycle, activate IORD# and IOWR#

R29

4.7K

EAUX40

EAUX41

PC_VCC

GND

C8

0.1UF

R1

4.7K

VCC

R16

4.7K

PC_VCC

GND

R15

4.7K

R17

4.7K

VCC

C9

0.1UF

PC_VCC

VCC

R23

4.7K

R14

4.7K

R18

4.7K

DD11 DD12 DD13 DD14 DD15 CE_L#

OE#

A9 A8

WE/P#

PC_VCC

A7 A6 A5 A4 A3 A2 DA1 DA0 DD8 DD9 DD10

DIOCS16#

PHOTO_EN#

PC_CD1# DD3 DD4 DD5 DD6 DD7 CE_H# VS1# IORD# IOWR#

PC_VCC

VS2#

PC_RST

DIORDY

DACS3#

DD0 DD1 DD2 PC_CD2#

1 2 3 4 5 6 7 8

9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34

35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68

PCMCIA

X4

GND1 D3 D4 D5 D6 D7 CE1 A10 OE A11 A9 A8 A13 A14 WE/PGM IREQ VCC1 VPP1 A16 A15 A12 A7 A6 A5 A4 A3 A2 A1 A0 D0 D1 D2 IOIS16 GND

GND3 CD1 D11 D12 D13 D14 D15 CE2 VS1#/RFSH IORD IOWR A17 A18 A19 A20 A21 VCC2 VPP2 A22 A23 A24 A25 VS2#/RFU RESET WAIT INPACK REG SPKR STSCHG D8 D9 D10 CD2 GND4

D

C

B

A

1 2 3 4 5 6 7 8

4321

203-L30K90-03

LD[0..7]

N9

VCC33

D

LA16 LA15 LA14 LA13 LA12 LA11 LA9 LA8 WRLL#

LA7 LA6 LA5

C

LA4 LA3 LA2 LA1

1 2 3 4 5 6 7 8

9 10 11 12 13 14 15 16 17 18 19 20

N6

A16 A15 A14 A13 A12 A11 A9 A8 W NC NC NC A18 A7 A6 A5 A4 A3 A2 A1

SST39VF080

A17

VSS

NC A19 A10

D7 D6 D5

D4 VDD VDD

NC

D3

D2

D1

D0

VSS

A0

40 39 38 37 36 35 34 33 32 31 30 29 28 27 26 25 24

G

23 22

E

21

LA17

LA19 LA10 LD7 LD6 LD5 LD4

LD3LA18 LD2 LD1 LD0 LOE#

LA0

8MBIT EPROM

4MBIT EPROM/FLASH

LD0 LD1 LD2 LD3 LD4 LD5 LD6 LD7

VCC

13

D0

14

D1

15

D2

17

D3

18

D4

19

D5

20

D6

21

D7

32

VCC

16

GND

OPEN 27C040/080-90

LD[0..7]

A0 A1 A2 A3 A4 A5 A6 A7 A8

A9 A10 A11 A12 A13 A14 A15 A16 A17 A18 A19

CE

OE

12 11 10 9 8 7 6 5 27 26 23 25 4 28 29 3 2 30 31 1

22 24

LA0 LA1 LA2 LA3 LA4 LA5 LA6 LA7 LA8 LA9 LA10 LA11 LA12 LA13 LA14 LA15 LA16 LA17 LA18

LA19

LA[0..19]

LCS3# LOE#

VCCA

D

C

LCS2# LCS3#

2-CHANNEL AUDIO OUT

WOLFSON 2-CHANNEL AUDIODAC

R54 OPEN 0 R55 0 OHM

N1

RST#

WRLL#

VCCAVCCA

4-PIN EXTENSION FOR ROM EMULATOR INTERFACE

TP1 TP3

TP4

TP2

LA20

L_OUT

LA21

R34 15k

R36 33k

R35 1k

V7 847

L

C110UF

B

VCCA

CSB

CNTLA

CNTLB

CNTLC

TWS

MCLK

A

TBCK

TSD0

R3 33 OHM R4 33 OHM R5 33 OHM R6 33 OHM

R7 33 OHM R8 33 OHM R9 33 OHM R10 33 OHM

ML MC MD

TWS-

MCLK-

TBCK-

TSD0-

8

DVDD

7

DGND

23

CSB/WO

28

MLIIS

27

MCDM1

26

MDDM0

25

MUTEB

24

MODE

1

LRCIN

5

XTI

3

BCKIN

2

DIN

AVDD

VREFP

AGND

VREFN

VOUTL

VOUTR

ZERO

VMID

WM8706

15 20

14 19

C16 10uF

16 13

C17

21

18

10uF

C3

0.1UF

L_OUT R_OUT

ZERO

12

C4 10UF

VSYNC HSYNC

UDAC

YDAC

CDAC

VSYNC HSYNC

Y

Cb

IR_DATA

PHOTO_EN#

R

L

UDAC

YDAC

CDAC

X1

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15

VCCA

R30 15k

R32 33k

R33 1k

R28 620

R_OUTCr

V6 847

R

C210UF

PORT

R37 620

PCMCIA

782-L40D9-9000

B

A

1 2 3 4

5

87654321

203-L30K90-03D

CLK SOURCE

PLL3(pin41)

1

DCLK INPUT

0

VCC

WRLL# WRHL#

LOE#

LA0 LA1 LA2 LA3 LA4 LA5 LA6 LA7 LA8 LA9 LA10 LA11 LA12 LA13 LA14 LA15 LA16 LA17 LA18 LA19

LD8 LD9 LD10 LD11 LD12 LD13 LD14 LD15

VD3 OPEN

(1N4148)

CRSTAL OSC

VCC

12

105

24

173 174 175 176

198 199

170

204 205 206 207

2 3 4 5 6

7 10 11 12 13 14 15 16 19 20 21 22 23

178 179 180 181 182 185 186 187 188 189 190 191 194 195 196 197

145 150 149 143 142 146 151 152 153 144

154 155 158

122 123 124 125 126 127 128 131 132 133 134 135 136 137 140 141

R43 OPEN

(10K)

EM-MARINRESET IC

VCC

N7

1

NC

2

LD[8..15] HRST#

HRD#

HWR#

V6300

LD[0..7]

HIORDY

HIOCS16#

HCS1# HCS3#

HIRQ

HD[0..15]

GND

NC

RES

VDD

RST#

LCS2#

LD[0..7]

LD[8..15]

HD[0..15]

3 4 5

27MHZ

LCS2# LCS3#

HRST#

HA0 HA1 HA2

LA[0..19]

LA20 LA21

LD0 LD1 LD2 LD3 LD4 LD5 LD6 LD7

HRD# HWR#

HCS1# HCS3# HIRQ

HD0 HD1 HD2 HD3 HD4 HD5 HD6 HD7 HD8 HD9 HD10 HD11 HD12 HD13 HD14 HD15

D

C

B

EAUX40 EAUX41

HA[0..2]

A

VCC

R41

4.7K

RST#

C21 OPEN

(47UF)Package: SOT-23 5L

25

28

29

30

31

CLK

RESET

LCS0 LCS1 LCS2 LCS3

LWRLL LWRHL

LOE

LA0 LA1 LA2 LA3 LA4 LA5 LA6 LA7 LA8 LA9 LA10 LA11 LA12 LA13 LA14 LA15 LA16 LA17 LA18 LA19 LA20 LA21

LD0 LD1 LD2 LD3 LD4 LD5 LD6 LD7 LD8 LD9 LD10 LD11 LD12 LD13 LD14 LD15

HRST/EAUX3[5] HRD/DCI_ACK/EAUX4[6] HWR/DCI_CLK/EAUX4[5] HRDQ/EAUX4[0] HWRQ/DCI_REQ/EAUX4[1] HIORDY/EAUX3[3] HIOCS16/CAMPCLK/EAUX3[4] HCS1FX/EAUX3[7] HCS3FX/EAUX3[6] HIRQ/DCI_ERR/EAUX4[7]

HA0/EAUX4[2] HA1/EAUX4[3] HA2/EAUX4[4]

HD0/DCI[0]/EAUX1[0] HD1/DCI[1]/EAUX1[1] HD2/DCI[2]/EAUX1[2] HD3/DCI[3]/EAUX1[3] HD4/DCI[4]/EAUX1[4] HD5/DCI[5]/EAUX1[5] HD6/DCI[6]/EAUX1[6] HD7/DCI[7]/EAUX1[7] HD8/DCI_FDS/EAUX2[0] HD9/EAUX2[1] HD10/EAUX2[2] HD11/EAUX2[3] HD12/EAUX2[4] HD13/EAUX2[5] HD14/EAUX2[6] HD15/EAUX2[7]

TDMFS

TDMDR

TDMTSC

TDMDX/RSEL

NC/CAMVS

42

PLL2(pin32)

TDMCLK

ES6420

202

PLL1(pin36) PLL0(pin33) 0 114.75 0 0 0 101.25 1 1 1 1

CAMYUV0

203

0 0 1 270 1 0 0 1 94.5 1

VCC33P

L6 FERB

L7 FERB

51

AVCC(PLL)

AVCC(VDAC)

AVSS(VDAC)

112

1

18

27

VC33

VC3359VC3368VC3375VC3392VC33

VSS

AVSS(PLL)52VSS

8

111

CAMYUV1

MULTI

4.25

0

reserved

1

bypass

1

3.75

0

4.5 reserved

1

3.5

0 1

4

VCC33

VCC33VCC33E

99

104

130

148

VC33

VSS

17

26

34

43

60

67

157

VC33

VSS

76

159

VC33

VSS

84

164

VC33

VSS

91

183

VC33

VSS

98

Frequency

NA

121.5 NA

108

193

VC33

VSS

103

201

120

R27

1.2/1W

VC33

VSS

129

VSS

9

35

VC25

VSS

138

147

156

163

VCC33

R45

4.7K

VCCL

83

121

139

172

44

VC25

PCLKQSCN/CAMYUV5/AUX3[2]

HSSCN/CAMYUV7/EAUX3[0] VSSCN/CAMYUV6/EAUX3[1]

VSS

171

177

184

192

200

208

VCC33

R38 OPEN

(4.7K)

R46

4.7K

N8 ES60x8

MCLK

TWS/SEL_PLL2 TSD0/SEL_PLL0 TSD1/SEL_PLL1

SPDIF/SEL_PLL3

PCLK2XSCN/CAMYUV4

YUV0/CAMYUV2

YUV1/VREF YUV2/CDAC YUV3/COMP

YUV4/RSET YUV5/YDAC YUV6/VDAC

YUV7CAMYUV3

DRAS0 DBANK0/DRAS1 DBANK1/DRAS2

DSCK/DOE

DMA10 DMA11

NC/APLL

VSS

48

C36 150P

(150PF)

R39 OPEN

(4.7K)

R47

4.7K

TBCK

TSD2 TSD3

RBCK

RWS

RSD

DCS0 DCS1

DCAS

DWE

DQM

DSCK

DMA0 DMA1 DMA2 DMA3 DMA4 DMA5 DMA6 DMA7 DMA8 DMA9

DB0 DB1 DB2 DB3 DB4 DB5 DB6 DB7 DB8

DB9 DB10 DB11 DB12 DB13 DB14 DB15

AUX0 AUX1 AUX2 AUX3 AUX4 AUX5 AUX6 AUX7

XIN

XOUT

33 OHM

VCC33

R40 OPEN

(4.7K)

39 40

32 33 36 37 38

47 46 45

41

PCLK2X

116

PCLK

117

EAUX30

119

EAUX31

118

106 107 108 109 110 113 114 115

100 97 72 73 74 69 71 70 101

102

DMA0

53

DMA1

54

DMA2

55

DMA3

56

DMA4

57

DMA5

58

DMA6

61

DMA7

62

DMA8

63

DMA9

64

DMA10

65

DMA11

66

DB0

77

DB1

78

DB2

79

DB3

80

DB4

81

DB5

82

DB6

85

DB7

86

DB8

87

DB9

88

DB10

89

DB11

90

DB12

93

DB13

94

DB14

95

DB15

96

R71 33 OHM

160

R72 33 OHM

161

R73 33 OHM

162 165

AUX4

166 167 168 169

49

XOUT

50

R81

27MHZ

R48

4.7K

R56 33 OHM

R57 33 OHM

YUV0 YUV1/VREF YUV2 YUV3 YUV4 YUV5

R65 33 OHM R66 33 OHM

XIN

R77

100K G1

12

27M

C33 27PF

ES6420F/FP

VDAC YDAC Y CDAC UDAC

VCCV

CVBS&S-VIDEO

L1 FERB

R31 0 OHM

R49 33 OHM

HSYNC

VSYNC

TP5

RN1 33x4

1 8 2 7 3 6 4 5

RN2 12x4

1 8 2 7 3 6 4 5

RN312x4

1 8 2 7 3 6 4 5

RN412x4

1 8 2 7 3 6 4 5

VCC

R69

R70

4K7

AUX2 AUX3

AUX6 AUX7

L4

3.3UH

C34

C35

27PF

1000PF

CVBS&YUV

CV

C

VCC

C24 15P

(15PF)

HSYNC

VSYNC

C31 0.1UF

VREF

R59 270

R63 33 OHM

R67 68 OHM

MA0 MA1 MA2 MA3

MA4 MA5 MA6 MA7

MA8 MA9 MA10 MA11

VCC

8 7 6 5

VCC

N3D

11

74HCT32

RGB

CV

G

Y

PB R

B

PR

C25 22P

(22PF)

TWS TSD0

VCC33E

C32

15PF

DB[0..15]

SERIAL EEPROM

N12

S0

VCC

S1

WC

S2

SCL

GND

SDA

24C01A

R76

4.7K

13

12

MCLK

TBCK

C28

0.1UF

CS0#

RAS0#

CAS#

WE#

BANK0 BANK1

1 2 3 4

ESS REMOTE INTERFACE

R78 33 OHM

R42 75 OHM

R50 75 OHM

R58 75 OHM

MA0 MA1 MA2 MA3 MA4 MA5 MA6 MA7 MA8 MA9 MA10 MA11

CKE

DQMX

IR_DATA

L2 2.7UH

C19 470PF

L3 2.7UH

C22 470PF

L5 2.7UH

C29 470PF

N10

23

A0

24

A1

25

A2

26

A3

29

A4

30

A5

31

A6

32

A7

33

A8

34

A9

22

A10

35

A11

38

CLK

37

CKE

19

CS

18

RAS

17

CAS

16

WE

15

DQML

39

DQMH

20

BA0

21

BA1

36

NC

40

NC

4Mx16 SDRAM (9ns)

32/64MBIT SDRAM

C20 470PF

C23 470PF

C30 470PF

DQ0 DQ1 DQ2 DQ3 DQ4 DQ5 DQ6 DQ7 DQ8

DQ9 DQ10 DQ11 DQ12 DQ13 DQ14 DQ15

VCC VCC VCC

VCCQ VCCQ VCCQ VCCQ

VSSQ VSSQ VSSQ VSSQ

VSS VSS VSS

VDAC

YDAC

CDAC UDAC

VCCV

VD4

1N6263

2 1

VD7

1N6263

2 1

VCCV

CDAC UDAC

VCCV

2 1

VIDEO OUT

D

VD5

1N6263

VD8

1N6263

VD10

1N6263

2 1

VD12

C

1N6263

2 1

VCC33

DB0

2

DB1

4

DB2

5

DB3

7

DB4

8

DB5

10

DB6

11

DB7

13

DB8

42 44 45 47 48 50 51 53

1 14 27

3 9 43 49

6 12 46 52

28 41 54

DB9 DB10 DB11 DB12 DB13 DB14 DB15

CRITICAL TRACES

MOST

LEAST

CLOCKS

ADDRESS

CAS

WE

RAS

CSx

DQM

B

A

1 2 3 4 5 6 7 8

5

Xoceco LC-30K9A-(W), LC-40K9A Schematic

Specifications and Main Features

Frequently Asked Questions

User Manual