Polaroid LC20H15 Service Manual

LCD TELEVISION

LC20H15

Functional Board List LCD/Plasma Televisions

Please note that this BOM list may vary from the original documentation. This part list supersedes the parts

list contained within the body of the service manual. Please reference the part numbers below when ordering

replacement boards of the servicing of this model.

If you require additional technical support, please contact our Tech Support line at 1-866-396-6322

Model Part Number Description Boards

667-L20H15-04 4 Switch Keypress Board 1
667-L20H15-05 3 Switch Keypress Board 1
667-L20H15-09 IR Receive Board 1
667-L20H8-01D Main Board 1
667-L20H8-29 AV Board 1

FLM-2011

667-L20H8-55 Tuner(H Frequency) Board 1
301-U20H15-41RB Remote RC-U41R-0B 1
302-AD16A-02 Power Adapter FSP060-1A 1
615-10483-03 Stand Assy 1
667-L20H3-14A Backlight Board 1

CONTENT

Safety instructions………………………………………………………………………..…
Instructions on adjusting and testing…………………………….…….…………………
Trouble shooting……………………………………………………….……………………
Method of software upgrading………………………………………….…………………
Briefing on LC20H15 and its working principle………………………………..………….

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…………………………………………………………………….…..

1
3
5
7
9
18
19
19
20
22
24

1

No sound (with TV input as an example)

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!):

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 st at ic 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 eq uipment and devices or exposure t o sunlight etc.

Otherwise bad effect will result.

2.5. If any foreign substance such a s water, liquid, metal slices or other matte rs happe ns to fa ll int o 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 scre en 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 w hen the module i s in operat ion or just after the pow er

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 t he 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.

Attention: This service manual is only for service personnel to take reference with. Bef ore servicing
please read the following points carefully.

2

2.9 As most of the circuitry in LCD T V set is compos ed of CMOS i ntegrated cir cuits, it ’s neces sary 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

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 t o 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

0----+50 C

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 t ime may result in appear anc e of pict ure residu e on the scree n,

as commmonly called “ghost shadow”. The extent of the residual picture varies with the maker of

LCD screen. This phenon menon does n’t represent failure. Th is “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 view ing 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.

4

5 Adjustment and calibration for the TV board

Connect the main board X501 to infrared receiving board (as per wiring diagram 203-L20H80-01JL)

and press the POWER key on the remote control set. Now Now the indication lamp of the infrared

receiving board is blue. Measure N3 PIN2 of TV board to be 3.3 V, one terminal of inductor L107 to

be 5 V and one terminal of inductor L4 to be 12 V

6 Adjustment of white balance (using the white balancer CA210 and K7253 signal generator

specialized for LCD)

a) Install the whole TV set

b) Enter the factory menu and perform”PW1306 reset”

c) Exit from the factory menu. Press “signal source” key and enter YpbPr.

d) Input YpbPr signal: 640x480p 60Hz (K7253).

e) Enter the user menu. Set the brightness to 50 and contrast to 50. Press “factory” key to enter

the factory menu, perform “ADC calibration”, input signals of “black field”(EMPT),”white

field”(White-(100%))”fully red”(Full_Magenta)respectively and then calibrate three times.

f) Input signal of “four grade gray”(Gray(H)-4 ). Use CA-210 to measure the third grade and adjust

the brightness and contrast so that Y is around 150. Enter factory menu and adjust the green

color temperature and blue color temperature so that x=270,y=283(red color temperature is

constant as128).

g) Exit from the factory menu and enter route RGB. Input 640x480 @75Hz “pane

signal”(C_Hat_16x12(W))through port VGA. Enter the user menu and adjust the brightness to

50 and contrast to 50. Adjust the line center and the field center so that the picture is correctly

positioned.

h) Input signal of “16 gray grades” (Gray(H)-16). Enter the factory menu and perform “calibration of

ADC”.

i) Exit from the factory menu, input the signal of “four grade gray” (Gray(H)-4 )and enter the user

menu. Adjust the brightness and contrast. Use CA-210 to measure the third grade so that Y is

around 200. Enter the factory menu and adjust the green color temperature and blue color

temperature so that x=270,y=283(red color temperature is constant as128).

j) Enter TV mode and adjust channel No. Enter “D8”signal and adjust the color to 0. Adjust the

brightness and contrast. Use CA-210 to measure the third grade so that Y is around 200.

k) Enter the factory menu and adjust the green color temperature and blue color temperature so

that x=270,y=283(red color temperature is fixed as128).

7 Performance check

a) TV Interfaces

Connect RF port to central signal source. Enter station search menu - auto station search. After

system adjustment is over, check if there is any station missing and then check semi-auto station

search. Check if fine tuning is normal.

Check if the output of earphone or loudspeaker is normal and if the picture is normal.

b) Interface of AV/S Terminals

Connect to access the signal of AV/S terminals separately and check if the picture or sound is

normal.

c) AV OUT Termianl

Input the signals separately in the status of TV/AV/S terminal. Connect AV OUT terminal to monitor

and check if the output picture and sound from AV OUT is normal. (Note: In the status of S terminal,

5

the output picture from AV OUT is colorless.)

d) VGA Interface

Input VGA signal(K7253 signal generator). Separately input t he four types of V G A format signals as
listed in Table 1. Wait till auto calibration is over. Then check if the picture and sound is normal. If
there has been interference to the picture then press the auto set key on the remote control once
again and check if the display is normal.

Table 1 Display Format of PC

Item

Resolution

Picture

element clock

(MHz)

H-SYNC

(kHz)

V-SYNC

(Hz)

Remark

1 640 x 480 @ 60 25.175 31.469 59.900
2 720 x 400 @ 70 28.322 31.469 70.086
3 800 x 600 @ 60 40.000 37.879 60.317
5 1024 x 768 @ 60 65.000 48.363 60.004

e) YprPb Interface

Connect to access YPrPb signal(K7253 signal generator). Separately input the five types of YprPb
format signals -- 480P/50 Hz,480P/60 Hz,720P/60 Hz,1080I/50 Hz,1080I/60 Hz and check if the
picture and sound is normal after auto calibration is over.

Connect to access YprPb signal(DVD signal generator). Input the signals -- 480I/50 Hz,480I/60 Hz

separately and check if the picture and sound is normal.

8 Preset ex-works

In the status of TV enter the factory menu by pushing t he factory key and then perform presetting.
9 Ex-works packing
Check accessories and then pack them in box.

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 r eflect ed from hilltop or building.

Picture is interfered by stripe

shaped bright spots

 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 separat e t hem in a longer distance.
There appear streaks or light color
on the screen

 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:

No picture and sound, but only

hash.

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

received the video signal correctly.

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 po wer s upp l y of liq ui d crystal TV has been

switched on. (as ca n be indic ated by the r ed LED at the front

of the TV set)

 See if it’s receiving the sig nal that is transmitted f rom 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 c o nnec ti on b et ween vid eo frequency

source and the liquid crystal TV set is correct.

Deterioration of color p has e or col or
tone

 Check if all the picture setups have been corrected.

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 c rystal

TV set and mak e proper adjustment according to t he signal

types.

Picture too bright and there is
distortion in the brightest area

 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.

Picture is whitish or too bri ght in the

darkest area of the picture

 Check if the setting for the brightness is too high
 Possibly the brightness grade of DVD player(broadcaster)is

set too high.

No picture or signa l produced from

the displayer if “XXX in
search”appears.

 Check if the cable is disconnected.
 Check if it’s connected to the proper terminal or if the input

mode is correct.

There appears an indication ­“outside the receivable scope)

 Check if the TV set c an receive inpu t signal. T he signal is not

correctly identified and VGA format is beyond the specified

scope.

Remote control cannot work
properly

 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 obstruc t betwee n the rem ote contr ol and

the TV set.

 Check if the remote control signal- receiving window is

exposed to strong fluorescence.

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

Method of software upgrading

Steps of softw are upgrading are as follow s:

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;

3. Open the soft ware 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 progr am:

8

Based on the computer features, set up the serial port(COM Port). Select corresponding serial port

(if it’s unable to FLASH WRITE, chang e to anot her port). Baud is select ed 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. Sw it ch on TV set the FLASH write program begins to run;

5. After FLASH write is ov er , 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 LC20H15 and its working principle

LC20H15 multi-media liquid crystal TV broadcast and receiving set adopts liquid crystal display
screen of LG 20.1, which is provided with NTSC color system receiving function in addition to AV
input,S-VHS input,high definition signal port for component YPrPb/YcbCr,PC VGA port, earphone
output and other signal ports. For power supply an externally connect ed power adaptor is provided.

The circuitry of LC20H15 is composed of RF module board, video signal board, digital signal picture
processor and AC-DC transformer, and DC-DC circuit board.

The working process is as follows. The radio frequency signal undergoes an integrated tuner U1
before a color full vid eo signal is generated. This video signal then enters analog board decoder IC N1
VCT3833 Pin19 where it is processed and it’s output as analog signals R, G, B through Pin42, PIN43,
PIN44. Audio frequency signal is processed with sound in IC N1 VCT3833 Pin19 and then output
through MSP3420G Pin28 , Pin27 to SR S for surrou nd sound processing in IC N6 M62494E. Finally it
is subject to power amplification in IC N8 TDA3002D2 before it is output to speaker.

VGA signal/high definition signal is input to personal computer through the main board. The signal
selected by Y/Pb/Pr through 5 w ay 1/ 2 swit ches IC(U9 BA7 657F)i s sub ject to reselect io n together w ith
signal TVRAIN, TVGAI N, TV BAI N th rough 5 way 1/ 2 swit ches I C(U 7 BA7 657 F). Fi nally si gnals R, G, B
are selected and sent to the main processing chip PW1306.

PW1306 is a built-in X86 CPU of the main processing IC ,externally connected by 8M Flash(U13)
memory to control the whole system. The input signal of V-port and G-port is subject to internal
arithmetic processing and then outp ut as R, G, B signals with electric level of 24 bit TT L to sockets JP3
and JP4, where through connection wires the signals are sent to the port of LG liquid crystal screen
and for the realization of picture reproduction.

10

LCD panel

transform

memory

MAIN ROCESS CHIP

C BUS

VIDEO OUT

CRYSTAL 20.25M

VIDEO DECODING

C BUS

C BUS

TUNER

ANTENNA

Supply 12V to LCD panel

supply 12V to backlight and power amp.

sound processing

c BUS

SPEAKER

EARPHONE OUTPUT

POWER AMP.

(1). BLOCK DIAGRAM

VGA interface

VSUPD

Video

Front-end

Comb

Filter

Color

Decoder

Display

Processor

Video

Back-end

Panorama

Scaler

4

3

4

31

12

2

2

I

C Master

3kB
OSD

96 kB

CPU ROM

TPU

DMA

CPU

24 IO Ports

Watchdog

2 CapCom

2 Timer

15:1 Mux
10-bit ADC

8-bit PWM

Audio

2

3

Clock

Oscillator

1kB

CPU RAM

VIN

XTAL1

XTAL2

AIN

Pxy

ADB, DB, CB

RGBOUT

RGBIN

VERT

PROT

HFLB

SENSE

2

IC

XREF

HOUT

VRD

VRT

SGND

Color, Prio

2

IC

MSync

VSUPAB

VSUPP1

GNDP1

Reset
Logic

RESQ

VSUPS

TEST

GNDAB

VSUPAF

GNDAF

GNDD

RSW2GNDM

EW

8

14-bit PWM

2 2

3

CIN

SVM

Video

CLK20

RDY

BE

VCT 38xxA/B

AOUT

VSync

VOUT

24 kB ROM

3kB

OSD RAM

Pict.Improv

16 kB

Te xt

RAM

11

Among which:
Video decoder: VCT3833 Picture processing: Pw1306
Audio processing: MSP3420 Sound amplification:TDA3002D2
Signal selection:BA7657F LVDS conversion:DS90C385
FLASH memory:M29LV800TTC-90 SRS sound field:M6294E

(2). Power supply

12 V is input through power supply adaptor and then is transformed through DC-DC into output of
5 V, which after going through various kinds of three terminal stabilizing integrated circuits, is output
as 1.8 V and 2.2 V. U3 is a power supply managing IC, which cuts off the 5 V output in the case of
standby so as to keep low power consumption.

1.U3(ATTINY12L):Power supply manager IC is a small CPU.
This IC is supplied with 5 V that is transformed from 12 V by stabilizer Tube VD102. This CPU only
receives POWER signal;
When its PIN7 outputs high electric level,U1 LM2596 will be in operation and outputs 5V. Then the
whole system starts to work and ensures low power consumption in the case of Standby.

2.U19(IRF7307):double tube MOS switching tube
The voltage of this part V12-STB is for power amplification of sound. Only when LCDON/LVDSON is
of high electric level can the output of Pin7 and Pin8 be low,and the output of Pin5.Pin6 be
12V.When LCDON/LVDSON is of low electric level, output of Pin7 and Pin8 is low,and the output of
Pin5 and Pin6 is 0. This ensures low power consumption when Standby.

3.Other IC
U1(LM2596):with on/off DC-DC stabilizer 5V output.
U2(AS2830):three terminal stabilizer, 3.3V output.
U4 U5(LM1117MPX):three terminal stabilizer, 1.8 V output

(3). Video decoder (VCT3833)

12

As many as 8 analog inputs can be connected of which 4 inputs are used for the input of composite
video or S-VHS brightness signal, 2 color inputs can be used to connect the signal of S-VHS carrier
frequency (chroma). For analog YcbCr signal, the input of the brightness that is selected is used
together with the input of CBIN and CRIN. Automatic gain control works in digital manner. In the
mode of YCbCr ,the gain of chroma channel is fixed and is applicable for 0.7Vp-p nominal amplitude.
However, should there appear ADC overflow, an excessive signal scope 1Vp-p can be selected.
Two ADC (analog-digital conversion) are used to digitalized the input signal. The converter has an
analytic degree of 8 digits. Reference voltage required by the converter is produced by an integrated
band-gap circuit. An adaptive comb filter is used to carry out high quality Y/C separation for
PAL/NTSC signal and to improve the resolution of brightness (band width) and reduce the
interference of color contamination and brightness contamination. Proper programmable limit to the
quantity of characteristic Luma Comb improves the uniformity of 2D resolution. This limitation is set
up by the data of CLIM (turning point).

Color decoder

Processing of both brightness and color is shown here. The color decoder also provides the format
of broad band chroma etc. for the use of S-VHS broad band broad chroma. If self-adaptive comb filter
is used to carry out high quality Y/C separation, then the color decoder conducts the processing in S­VHS manner. The format of color decoder input is YCrCb 4:2:2. Rear terminal of video frequency
Digital RG B signal can all be converted into analog RGB. It is provided by 3 DAC (digital-analog
conversion), an analog brightness value and another 3 DACs. Its regulation scope is 40% of the
whole RG B.

TV controller

TV controller is composed of CPU,RAM,ROM and some peripheral modules. It includes a memory
module that can access over 64 KB, a pilot installation software allowing for downloading the external
codes into Flash memory. The controller runs a complete set of software required to control TV. The
software includes such control functions as video, OSD and text processing. It also includes the
control for external parts and components such as tuner and stereo decoder. The communication
between the controller and external parts is interfaced by means of I2C bus line(highway) and can
also be connected by the pin at programmable port.

VCT38XXA/B is a single chip TV processing IC for high picture quality. Modular design and
workmanship of sub-micro level enables it to use in all TV equipment. It includes complete display of
video format processing. The video front terminal unit provides an analog interface for all video inputs
and performs analog-digital conversion for the downstream digital video processing.

Source Select

Loud-

SCART1

SCART2

SCART1

SCART2

SCART3

SCART4

MONO

De-

modulator

Headphone

Headphone

2

IS

Sound

speaker

Processing

Sound

Processing

DAC

DAC

ADC

Loud-

DAC

DAC

ADC

Subwoofer

SCART

DSP

Input

Select

Pre-

processing

SCART
Output

Select

Prescale

Prescale

2

I

S1

2

I

S2

Sound IF1

Sound IF2

speaker

1.MSP3450G

MSP3450G is one of MSP34x0G series. It is a single chip multi-system processor for sound,
which covers global wide analog TV system processing for sound. In the case of NICAM digital
sound system, all the TV sound processing from analog IF signal input to AF-OUT (audio output)
after processing is performed in this single chip.
The sound signal of TV, AV, S-VIDEO, Y.Pb.Pr ,VGA is input through the ports of MSP34x0G (pin
67 for TV),(pins 53,54 for AV1),(pins 56,57 for AV2),(pins 50,51 fir YPBPR),(47,48 pins for VG)and
the present sound form is automatically inspected. Besides, the electric level s of pilot frequency and
identification signal is inspected and measured internally by the sequence switch between
MONO/STEREO/BILINGUAL, and it's unnecessary to be processed through the bus line. The
processed signal is output through pins 27 and 28 and then fed to pins 1 and 2 of N403 M6249 for
SRS treatment.

(3).Audio frequency part

MSP3450G

13

20

19

18 17 16 15

14

13

MONO

1 2

3 4

5

6

7 8 9

STEREO

10

REF OUT

-

+

REF

12 11

1

4

2. M62494SP

SRS technology is incorporated in M62494SP. The full name of SRS is sound retrieval system,
implying a sound system that can reproduced and restore the stereo sound that is taking place at the
site. It is a patented sound technology of SRS Lab USA.

The signal is fed to pins 1 and 2 of M62494 through pins 27 and 28 of MSP34x0. After processing
it is sent to pins 3 and 5 of TPA3002D of N404 where it is amplified and output. From pins 11 and 12
the control signal of stereo and mono sound channel is sent to pin 2 (mono sound) and pin 63
(stereo), where selection is made.

Biases

&

References

TTL Input

Buffer

Startup

Protection

Logic

OC

Detect

Thermal

VDDok

RINP

RINN

VAROUTR

Ramp
Generator

COSC

ROSC

VCCok

5V LDO

AVCC

AVDD

AVDD

VDD

Deglitch &

Modulation

Logic

Gain

Adj.

Rfdbk2

Rfdbk2

Cint2

Cint2

Gain

Control

Deglitch &

Modulation

Logic

Gain

Adj.

Rfdbk2

Rfdbk2

Cint2

Cint2

LINP

LINN

VAROUTL

Gate
Drive

VClamp

Gen

Gate
Drive

PVCC

BSRP
PVCCR(2)

ROUTP(2)

PGNDR

PGNDR

ROUTN(2 )

PVCCR(2)

BSRN

Gate
Drive

VClamp

Gen

Gate
Drive

PVCC

BSLP

PVCCL(2)

LOUTP(2)

PGNDL

PGNDL

LOUTN(2)

PVCCL(2)

BSLN

VCLAMPL

VCLAMPR

VOLUME

VARDIFF
VARMAX

To Gain Adj.

Blocks

SD

VREF

REFGND

V2P5

V2P5

V2P5

Mode

Control

MODE

MODE_OUT

AVCC

AGND

AVDDREF

Gain
Adj.

Gain

Adj.

V2P5

V2P5

V2P5

V2P5

TPA3002D2

15

3.TPA3002D2

Sound power amplification TPA3002D2:(power amplification of stereo category D with volume
control)

TPA3002D2 is a high efficiency audio frequency amplifier of category D. The gains scope provided
is -40dB to -36dB. Supply voltage is 12V. The input of the amplifier is differential input (any noise at
the two input sides of the channel can be eliminated). The modulation of TPA3002D2 for various
outputs is from 0 to the supply voltage. However out P (positive output) and out N (negative output)
are now at the phase where they have no input to each other. For positive output voltage, the duty
cycle of OUT P is bigger than 50% and that for OUT N is less than 50%. For negative input voltage,
the duty cycle of OUT P is lower than 50% and that for OUT N is higher than 50%. In most of the
period the voltage to the load is 0V, which greatly reduces the switching current thus lowering the
power consumption of the load.

For BTL output (differential output), the voltage at the two output pins is 180 degree out of phase.
Load is connected between the two pins, thus enabling the load to get four times the output power
and reducing the baffle to the DC capacitor (BTL output is equal to balanced output).

16

(5). Processing of photograph

PW1306 is an optimized graph processing IC used for plane displayer (monitor).

1.U12 74LVC541A is an 8-digit buffer. Its input and output have 3 state functions. When OE1 and
OE2 are both low electric level, Ii and Oi are in on state. Otherwise Qi is three states. Controlled by
RD,CSO signal of PW1306, PW1306 reads the information about the push key and decodes the key
according to the state of D0 \ D7.

2.PW1306 provides three terminals for data of 24 bits,of which one is specialized for input (VG
port) of Video/graphics data, one is specialized for the display of output port (terminal D), another
one is a terminal (DG port) for the data of definable double direction display output/graphics input.
DG port is defined as input mode, which can be independently considered as a VG port or can be
formed, together with the original VG terminal, into an input port for 48 bit 2 picture element/every
clock. Once DG port is defined as output mode, it can be formed, together with D terminal, into a
displayer of 48 bit for double point (double click) screen.

· PW1306 with built in OSD function,in support of transparent and semi-transparent OSD,and with
phased-in and phased-out function.

·PW1306 includes an 80X86 CPU,16 bit micro processor, with interruption port, universal I/O ports,
VART port, IR decoder, PWM output port and timer and a memory port applicable for various
PROM,ROM,FLASH,RAM.

Signal flow direction of PW1306:

1. LG screen(single point screen)display of data output

· DRE[7:0],DGE[7:0],DBE[7:0]

· DCLK ,DEN,DHS, DVS

2.PW1306 FLASH interface

·A(19:1) to the address bus of flash.

·D(15:0) to the data bus of flash.

·ROMWEN write in enable of Flash.

· ROMOEN output enable of Flash.

3. other signals

·Reset signal from small CPU.

·RD,CSO,I/O extension control.

·TXD,RXD universal asynchronous sending and receiving.

· SDA,SCL I2C bus

· IR: infrared signal input from remote controlled receiving board.

· P15V330A P15V330B controls the 5 way 1/2 switch of BA7657F.

· NMI non-screened interruption.(for access to programs)

· RAIN GAIN BAIN R,G,B three base color input

·HSYNC VSYNC input

·PWM OUT: output of modulated pulse width for the control of the brightness of display screen ·
LVDSON:to control the POWER DOWN of the sender of LVDS

·BKLON:control signal for back lights

·LCDON :control signal for the power supply of PANEL ·SDA1,SCL1,ACK,REQ to X603 and the
to analog plate for communication with the analog plate.

·Flash ID: for normal operation when in low electric level and for flash write software when in high
electric level.

A/DCla mp

DERGB (23:0)

DORGB(2 3:0)

DVS, DHS,

DEN, DCLK

NMI

Interrupt

Controller

RxDTx D

UART

Watchdog and

Timers

Processor ROM/

RAM Interfac e

16-Bit

Microprocessor

Por tA & D (7:0)

GPIO PWM

IR

Decoder

A

(19:1)

D

(15:0)

CS

(1:0 )

2-Wire

Serial

Microprocessor Bus

Memory Out Bus

Memory

Buffe r

Processor

Memory

Interface

Memory In Bus

OSD

PW1306 Video ImageProcessor

Internal Block Diagram

ADC

Sync

Processing

HS

SOY

Stripper

PLL

CLK

A/DClamp

A/DCla mp

VS

Pow e rOn

Reset

RESET

Reset

XI XO

PLL and

Oscillator

MCLK DCLK UCLK

Scaling &

Video

Enhanceme nt

Color

Matrix

OSD

and

Gai n

Color

Lookup

Tab le s

Display

Timing

Generator

Color

Space

Expan de r

CSC

Auto

Im age

HSYNC,

VSYNC

SOYIN

FILT

R/Pr

G/Y

B/Pb

PW1306

17

18

WIRING DIAGRAM

19

Serial No. of Parts

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

Q’ty allowed Distance between two spots

Category criteria

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

One single

spot

≤5 ≤2 ≤5 ≤2 ≤3

2 neighboring

spots

≤2 ≤1 ≤2 ≤1 ≤1

Bright

spo

t

Total No. ≤5 ≤2 ≤5 ≤2 ≤3

≥15mm

One single

spot

≤6 ≤7 ≤5 ≤4 ≤10

Two

neighboring

spots

≤2 ≤2 ≤2 ≤1 ≤5

Dark

spots

Total No. ≤6 ≤7 ≤5 ≤4 ≤10

≥15mm

≥10mm

≥5mm

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).

335-2000-00 Display screen

203-L20H8-01W Parts of main board

302-AD16A-02 adapter

667-L20H8-05 Parts of big key board

667-L20H8-09 Parts of infrared receiving board

667-L22H8-55 Parts of TV board

667-L20H81-05 Parts of small key board

667-L20H8-55 High frequency board

No sound

Check N8 pin 14, 15, 22, 23, 38,

39, 46,47 (these pins should

have 12V power supply)

Check whether N8 pin 4, 27, 28 are

normal. Pin 4 should be 2.43V,

pin 27 should be 1.46V and

pin 28 should be triangle wave.

Check L302, X604 pin 5 and pin 6.

Check N6 pin 5 and

pin 8 signal.

Check N8's welding

condition.

Check N5 pin 27

and pin 28 signal.

Check N5 pin 67 signal.

Check whether U1 pin 11

have output waveform.

Check N8 pin3, pin 5's input signal.

Replace N8.

Yes

No

Yes

No

No No

Yes

No

No

20

Troubleshooting guide

No raster

Does the logo appear on the screen

when turning on the set ?

Check whether the adapter

supply 12V power to Digital Board.

Check whether X101 is

properly inserted.

Check U125965V. Check whether FUSE is melted.

Replace adapter.

Check whether U18 pin 63

is high level.

Check whether there is R.G.B

output at X601 on TV board.

Replace TV board.

Replace Digital board.

Yes Yes Good

No

Good

No

No No

No

TV board troubleshooting

No picture but have raster.

Measure the waveform of

R.G.B Hors, Vers at X7.

Check whether N1 has

5V power supply.

Check whether X9 pin 1, pin 2 have

5V power input.

Replace N2

Replace V105-V17.

Replace N1

Measure N1 pin 33, pin 35

waveform.

Measure N1 pin 42, pin 44

waveform.

Check V105-V107's

output waveform.

No

Yes

Yes

Yes

No

No

No

No

No

21

1 2 3 4

A

B

C

D

4321

D

C

B

A

Title

Number RevisionSize

B

Date: 5-Nov-2003 Sheet of
File: F:\temp2\A-USER\PW130V1.prj Drawn By:

LVDSON

LCDON

POWER

IR

RESETn

HOLD

LED

POWER
POWER.SCH

RAIN

GAIN

BAIN

PI5V330A

PI5V330B

HSYNC

VSYNC

RXD

TXD

FLASHID

RGBSWITCH
RGBSWITCH.SCH

SDA

SCL

RESET

RAIN

GAIN

BAIN

HSYNC

VSYNC

PI5V330A

PI5V330B

IR

ROMWEn

ROMOEn

A<19:1>

D<15:0>

NMI

LVDSON

DRE<7:0>

DRO<7:0>

DGE<7:0>

DGO<7:0>

DBE<7:0>

DBO<7:0>

DCLK

DVS

DHS

DEN

BLKON

PWM

LCDON

RXD

TXD

HOLD

FLASHID

SDA1

SCL1

BUSY

POWER

REQ

PW130
PW130.SCH

A<19:1>

D<15:0>

ROMWEn

ROMOEn

IR

LED

NMISDA

SCL

RESETn

IR

RESET

FLASH
FLASH.SCH

LCDVCC

TXD

RXD

BUSY

SCL1

SDA1

REQ

SCL

SDA

LVDSOUTPUT
LVDSOUTPUT.SCH

DRE<7:0>

DRO<7:0>

DGO<7:0>

DGE<7:0>

DBE<7:0>

DBO<7:0>

DCLK

PWM

LCDON

BKLON

SCL

SDA

LVDSON

DEN

DHS

DVS

RESET

LCDVCC

TTLOUTPUT
TTLOUTPUT.SCH

18

1 2 3 4

A

B

C

D

4321

D

C

B

A

Title

Number RevisionSize

A4

Date: 5-Nov-2003 Sheet of
File: F:\temp2\A-USER\POWER.SCH Drawn By:

X101

12V

C101

16V 2200u

C102

0.1u

Vin

1

output

2

GND3on/off

5

Feedbad

4

U1

LM2596

VD101

MBRD340

L101
33uH

C103

16V 470u

C104

0.1u

L102

STPB-300

C107

0.1u

GND

X102

PGND1

5V

18

C109

0.1u

C108

10V 100u

C111

10V 100u

GND GND GN DGND

C106

10V 22uF

VDDQ3

C116

0.1u

C124

0.1u

C118

10V 47u

C128

10V100u

V18

GND GND GND

GND GND

Vin

GND

Vout

U4

LM1117MPX

Vin

GND

Vout

U2

AS2830

C122

0.1u

C121

10V100u

GND

R103
10K

Vin

GND

Vout

U5

LM1117MPX

C110

0.1u

C123

10V100u

AVDD

L103

STPB-300

V5

C117

0.1u

L108

6.8uH

C119

0.1u

L106

STBH-181

C115

10V47u

L107

STBH-102

C127

0.1u

L110
22uH

C129

10V100u

LCDON

LVDSON

VD104
IN4148

VD105
IN4148

S1

1

G1

2

S2

3

G24D2a

5

D2a

6

D1b

7

D1b

8

U19

IRF7307

PGND1

R112

100K

C137

0.1u

V12-STB

PGND1

C135

0.1u

L112

STPB-300

PGND1

V12

R102

1.5K

R101

1.5K

V102

BC847

GND

V12

V12

V5-STB

V5

C133

16V100u

GND

PB5

1

PB3

2

PB4

3

GND4PB0

5

PB1

6

PB2

7

VCC

8

U3

ATTINY12L

VD102

HZ5V1

R104

4.7K

IR

POWER

RESETn

R109

10K

R106

4.7K

DVDD1

C132

0.1u

PGND4

R107

4.7K

GND

R114

100

R115

100

R116

100

FUSE

0

C130

10V100uF

C131

0.1u

V5-1

R113
1K

R117

4.7k

HOLD

R118

47K

V12

C134

0.1u

R119

10K

LED

PGND4

RZ1

0

PGND6

V5

GND

V12-STB

R120
10K

V103
BC847

R121

1.8K

R122

1.8K

R123

1.8K

GND

V12

C138

0.1u

R124
100K

R125
20K

38

1 2 3 4

A

B

C

D

4

321

D

C

B

A

Title

Number RevisionSize

B

Date: 5-Nov-2003 Sheet of
File: F:\temp2\A-USER\RGBSWITCH.SCH Drawn By:

R1 IN

1

HD DET

2

G1 IN

3

GND

4

B1 IN

5

GND

6

R2 IN

7

GND

8

G2 IN

9

GND

10

B2 IN

11

VD1 IN12VD2 IN

13

VD OUT

14

B OUT

15

CTL

16

COM OUT

17

COM IN

18

G OUT

19

VCC

20

R OUT

21

HD OUT

22

HD2 IN

23

HD1 IN

24

U7

BA7657F

R1 IN

1

HD DET

2

G1 IN

3

GND

4

B1 IN

5

GND

6

R2 IN

7

GND

8

G2 IN

9

GND

10

B2 IN

11

VD1 IN12VD2 IN

13

VD OUT

14

B OUT

15

CTL

16

COM OUT

17

COM IN

18

G OUT

19

VCC

20

R OUT

21

HD OUT

22

HD2 IN

23

HD1 IN

24

U9

BA7657F

PI5V330B

PI5V330A

TVRAIN

TVGAIN

TVBAIN

V5-1

C211

0.1u
C212

10V47u

HSYNC

VSYNC

X202

YPbPr

L206

3.3uH

L207

3.3uH

L208

3.3uH
R214

75 R21575R216

75

Y

Pb

Pr

BAIN

GAIN

RAIN

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

X201
VGA

L203

121H

L204
121H

L205
121H

R217
100

R218
100

R219
100

R21175R212

75

R213

75

AVDD AVDD

AVDD

V5

AVDDAVDD

VD201

BAV99

VD202
BAV99

VD204
BAV99

VD203
BAV99

R201
10K

R202

10K

R203

2K

R204

2K

R209

100

R210
100

A0

1

A1

2

A2

3

VSS4SDA

5

SCL

6

WP

7

VCC

8

U11

24LC21

R220
10K

C210

0.1u

1

2
3

4

5
6

GND

7

8

9

10

11

12

13

AVDD

14

U6

74HC14A

L202
751H

L201
751H

R231

22

R230

22

R232

2.2K

R233

2.2K

C221
22p

C220
22p

C222

0.1u
C223

10V 10u

R
G

B

H
V

X203

TVRAIN
TVGAIN
TVBAIN

TVHSYNC

19

1OE

1

1A

2

1Y

3

2OE

4

2A

5

2Y

6

GND73Y

8

3A

9

3OE

10

4Y

11

4A

12

4OE

13

VCC

14

U10

74LV126

R221

3.3K

R222

3.3K

VDDQ3

RXD
TXD

GND

FLASHID

R223

3.3K

R224

10K

V201
BC847

R225

8.2K

GND

VDDQ3

C230

0.1u

C231

10V22u

GND

VDDQ3

X204

PHONE

X205

X206

17L

L

RR

R226
10k

R227
10K

R229

10k

R228
10K

C203
1u

C208
1u

C204
1u

C205
1u

C207
1u

C206
1u

V5-1

R236
100

R235
100

R237

100

A1

1

B1

2

CLR1

3

Q1

4

Q2

5

C2

6

R2

7

GND8A2

9

B2

10

CLR2

11

Q2

12

Q1

13

C1

14

R1

15

VCC

16

U20

74LS221

R239
1K

C227
2n2

C229
18n

R240
3K9

V5-1

C224

0.1u
C225
10V47u

C228
39n

GND

V5-1

V202

BC847

V203

BC847

V5-1

V5-1

V5-1

R241
1k

R242
10k

R243
1k

R245
12k

R244
22k

V5-1

C226
2n2

V5-1

C209
1u

R238
68k

C213
68p

C215
68p

C214
68p

C216

1u

C217

1u

C218
1u

R246

1k

TVVSYNC

TVHSYNC

TVVSYNC

V5-1

C201

0.1u

C202
10V47u

R248

100

R247
100

R249
100

V5-1

R250
1K

C232
10V47u

VDDQ3

C234
10V22u

C236

10V22u

C235

10V22u

C237

10V22u

C239
10V22u

C238

10V22u

C241

10V22u

C240

10V22u

L209

3.3uH

L210

3.3uH

L211

3.3uH

L212

3.3uH

48

1 2 3 4

A

B

C

D

4321

D

C

B

A

Title

Number RevisionSize

B

Date: 5-Nov-2003 Sheet of
File: F:\temp2\A-USER\PW130.SCH Drawn By:

DVDD11DGND12DVDD13DGND14NC5AVDD6NC7NC8AGND9NC10NC11AGND12NC13NC14AGND15NC16NC17AVDD18DGND119DVDD120PGND21PVD22FILT23PVD24PGND25PVD26PGND27ALVDD28ALVDD29ALGND30ALGND31AVDD32AVDD33AGND34AGND35AVDD36RAIN37AGND38AVDD39AGND40AVDD41AGND42GAIN43SOGIN44AGND45AVDD46AGND47AVDD48AGND49BAIN50AGND51AVDD

52

RXD

53

TXD

54

VPEN

55

VYUV7

56

VYUV6

57

VYUV5

58

VYUV4

59

VYUV3

60

VYUV2

61

VYUV1

62

VYUV0

63

VSYNC

64

HSYNC

65

DB7

66

DB6

67

VDDQ3

68

VSSQ

69

DB5

70

DB4

71

VCLK

72

DB3

73

DB2

74

VDD1

75

VSS

76

DB1

77

DB0

78

DG7

79

DG6

80

DG5

81

DG4

82

VDDQ3

83

VSSQ

84

DG3

85

DG2

86

DG1

87

DG0

88

DR7

89

DR6

90

DR5

91

DR4

92

DR3

93

DR2

94

VDD1

95

VSS

96

DR1

97

DR0

98

DGB7

99

DGB6

100

DVS

101

DHS

102

DEN

103

VDDQ3

104

VSSQ

105

DCLK

106

DCLKNEG

107

DGB5

108

DGB4

109

DGB3

110

DGB2

111

DGB1

112

DGB0

113

DGG7

114

DGG6

115

DGG5

116

DGG4

117

DGG3

118

DGG2

119

DGG1

120

DGG0

121

VDDQ3

122

VSSQ

123

DGR7

124

DGR6

125

DGR5

126

DGR4

127

DGR3

128

DGR2

129

DGR1

130

DGR0

131

RESET_N

132

VDDQ3

133

VSSQ

134

VDD1

135

VSS

136

TESTEN

137

TDO

138

TDI

139

TMS

140

TCK

141

TRST_N

142

D15

143

D14

144

D13

145

VDD1

146

VSS

147

D12

148

D11

149

D10

150D9151D8152D7153D6154D5155D4156

D3

157

D2

158

D1

159

D0

160

A19

161

A18

162

A17

163

A16

164

VDDPA2

165

VSSPA2

166

VDDPA1

167

VSSPA1

168

XI

169

XO

170

VDDQ3

171

VSSQ

172

VDD1

173

VSS

174

A15

175

A14

176

A13

177

A12

178

A11

179

A10

180

A9

181

A8

182

A7

183

VDD1

184

VSS

185

VDDQ3

186

VSSQ

187

A6

188

A5

189

A4

190

A3

191

A2

192

A1

193

NMI

194

WR

195

RD

196

ROMOE

197

ROMWE

198

CS0

199

CS1

200

PORTA7

201

PORTA6

202

PORTA5

203

PORTA4

204

PORTA3

205

PORTA2

206

PORTA1

207

PORTA0

208

U18

PW130

DVDD1

VDDQ3

VDDQ3

V18

VDDQ3

V18

V18

V18

VDDQ3

V18

AVDD DVDD1

V18

VDDQ3

AVDD

V18

GND GND

L303
22uH

R311

3.3K

C318

39n

C319

3.9n

GND

C310

47n

C309

47n

C307
47n

C308

1n

RAIN

GAIN

BAIN

TXD
RXD

R310

3.3K

GND

PI5V330A

PI5V330B

HOLD

BKLON

LVDSON

LCDON

POWERON

VSYNC

HSYNC

DBE<7:0>

DGE<7:0>

DRE<7:0>

DBE7

DBE6

DBE0
DBE1
DBE2
DBE3

DBE4
DBE5

DGE0
DGE1
DGE2
DGE3

DGE4
DGE5
DGE6
DGE7

DRE0
DRE1
DRE2
DRE3

DRE4
DRE5
DRE6
DRE7

R339

3.3K

GND

DEN
DHS

DVS

DCLK

RESET

R309

3.3K

D<15:0>

D0

D1

D2

D3

D4D5D6D7D8

D9

D10

D11

D12

D13

D14

D15

C303

10V 22u

C305

10V 22u

C304

0.1u

C306

0.1u

L301

22uH

L302

22uH

GND

R308

1.5M

Z301

14.318

C302

18p

C301
18p

GND

VDDQ3

V18

VDDQ3

VDDQ3

DVDD1

V18

AVDD

VDDQ3

A<19:1>

NMI

ROMOEn

ROMWEn

OE1

1

OE2

19

I0

2

I1

3

I2

4

I3

5

I4

6

I5

7

I6

8

I7

9

VCC

20

O0

18

O1

17

O2

16

O3

15

O4

14

O5

13

O6

12

O7

11

GND

10

U12

74LVC541A

X301

R302

3.3K

R303

3.3K

R307

3.3K

R3043.3K

R305

3.3K

R306

3.3K

GND

D0
D1
D2
D3
D4
D5
D6
D7

PWM

IR

SCL
SDA

REQ

SCL1
SDA1
FLASHID

C621

0.1u

C622

0.1u

C623

0.1u

C625

0.1u

C620

10V 47u

GND

C624
10V 100u

C626

0.1u

C627

0.1u

C628

0.1u

C629

0.1u

C630

0.1u

C631

0.1u

C632

0.1u

C633

0.1u

C634

0.1u

C317

0.1u

C313

0.1u

C312

0.1u

C316

0.1u

C315

0.1u

C314
10V 22u

GND

C635

10V 100u

C636

0.1u

C637

0.1u

C638

0.1u

C639

0.1u

C640

0.1u

C641

0.1u

C642

0.1u

GND

C643

10V 100u

C644

0.1u

C645

0.1u

C646

0.1u

C647

0.1u

C648

0.1u

C649

0.1u

GND

A15

A1A2A3A4A5

A6

A7

A8

A9

A10

A11

A12

A13

A14

1

A16

A17

A18

A19

R313

47

R314

47

R315

47

R312

47

R316 100
R317 100
R318 100
R319 100
R320 100
R321 100

R322

3.3K

R323

3.3K

R325

3.3K

R326

3.3K

VDDQ3

R338

47R

R337

47R

R336

47R

R335
47R

R334

47R

R333

47R

POWER

GND

R345

3.3K

VDDQ3

BUSY

VDDQ3

C350

10V 47u

C351

0.1u

GND

GND

AVDD

X302

1

DBO<7:0>

R324

3.3K

DBO<7:0>

DGO<7:0>

DRO<7:0>

DBO0
DBO1
DBO2
DBO3
DBO4
DBO5
DBO6
DBO7

DGO0

DGO1

DGO2

DGO3

DGO4

DGO5

DGO6

DGO7

DRO0

DRO1

DRO2

DRO3

DRO4

DRO5

DRO6

DRO7

R331

47R

R332

47R

R330
47RR329

47RR327

47R

R328
47R

VD301
IN4148

R3403.3K

58

1 2 3 4 56

A

B

C

D

654321

D

C

B

A

Title

Number RevisionSize

B

Date: 5-Nov-2003 Sheet of
File: F:\temp2\A-USER\FLASH.SCH Drawn By:

A15

1

A14

2

A13

3

A12

4

A11

5

A10

6

A9

7

A8

8

NC

9

NC

10

WE#

11

RESET#

12

NC

13

NC

14

RY/BY#

15

A18

16

A17

17

A7

18

A6

19

A5

20

A4

21

A3

22

A2

23

A1

24

A0

25

CE#

26

Vss

27

OE#

28

DQ0

29

DQ8

30

DQ1

31

DQ9

32

DQ2

33

DQ10

34

DQ3

35

DQ11

36

Vcc

37

DQ4

38

DQ12

39

DQ5

40

DQ13

41

DQ6

42

DQ14

43

DQ7

44

DQ15/A-1

45

Vss

46

BYTE#

47

A16

48

U13

AM29LV800BT

ROMWEn

A<19:1>

R506

3.3k

GND

ROMOEn

D<15:0>

C501

0.1u

VDDQ3

VDDQ3

VDDQ3

R504

1K

R505

3.3K

GND

C509

0.1u

GND

V501

BC857

R501
1K

V502
BC847

R503

10K

R502

3.3k

GND

VDDQ3

VDDQ3

V5

VDDQ3

VDDQ3

GND

GND

GND

GND

GND

GND

GND

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

JP2

HEADER 25X2

1 2
3 4
5 6
7 8

JP1

HEADER 4X2

D<15:0>

A<19:1>

R507

3.3K

ROMWEn

ROMOEn

A0

1

A1

2

A2

3

VSS4SDA

5

SCL

6

WP

7

VCC

8

U14

24C16

SCL

SDA

C502

0.1u

1

2

3

4

5

X501

IR

LED

VDDQ3

R512
30K

C506

0.1u

RESET

VD501

IN4148

R513
200

C505

10V 47u

S1

S2

C504

0.1u

R514

100K

NMI

C503

0.1u

A1

A2

A3

A4

A5

A6

A7

A8

A9

A10

A11

A12

A13

A14

A15

A16

A17

A18

A19

D0

D1

D2

D3

D4

D5

D6

D7

D8

D9

D10

D11

D12

D13

D14

D15 GND

VDDQ3

C507

0.1u

C508

10V 47u

GND

VDDQ3

A1

A2 A3

A4 A5

A6 A7

A8

A9 A10

A11 A12

A13 A14

A15 A16

A17

A18

A19

D0
D1
D2
D3

D4
D5
D6
D7

D8
D9
D10
D11

D12
D13
D14
D15

RESETn

R515
10K

VDDQ3

V5-STB

1 2 3 4

A

B

C

D

4321

D

C

B

A

Title

Number RevisionSize

A4

Date: 5-Nov-2003 Sheet of
File: F:\temp2\A-US ER\LVDSOUTPUT.SCH Drawn By:

C608

0.1u

C607

16V 100u

1
2
3
4

X602

R609

51

R610

51

GND

V5

TXD

RXD

X603

GND

BUSY

SCL1

SDA1

1

REQ

PGND2

LCDVCC

1
2
3
4

X604

GND

V5

SDA

SCL

X901

C901

10V22u

C902

0.1u

1

2

3

U901

HWJS538

VD901

R901
330

BLUE

RED

S507

CH+

S506

CH--

S505

VOL+

S504

VOL--

GNDGNDGNDGND

X502

GND

S503

MENU

S502

SOURCE

GNDGND

S501

POWER

X501

GND

GND

1 2 3 4

A

B

C

D

4321

D

C

B

A

Title

Number RevisionSize

B

Date: 5-Nov-2003 Sheet of
File: F:\temp2\A-USER\TTLOUTPUT.SCH Drawn By:

R713

3.3K

R712

2.2K

V704

BC847

R714

10K

C707

0.1u

1

2

3

GND

4 5

6

7

VCC

8

U16

LM358

R716
10K

R715

10K

GND

GND

GND

GND

GND

PGND2

PGND2

GND

PGND2

GND

GND

GND

R717
10K

V5

V5

V5

V5

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

JP3

HEADER 20X2

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

JP4

HEADER 20X2

VDDQ3 VDDQ3

DBO<7:0>

DBE<7:0>

DGO<7:0>

DGE<7:0>

DRE<7:0>

DRO<7:0>

DCLK

PWM

LCDON

BKLON

SCL

LVDSON

DEN

DHS
DVS

RESET

SDA

LCDVCC

C706

10V 100u

VD701

IN4148

VD702
IN4148

VD703

IN4148

R706

100K

R707

3.3K

V702

BC847

R708
2K

C705

10V 100u

C704

0.1u

C703
10V 100u

IN

GND

OUT

U17

LT1117

R705

0

R704

0

R703
10K

C142

0.1u

C141

16V22u

C702

16V 22u

C701

0.1u

R702
1K

V705

2SJ439

R701

3.3K

V701

BC847

PGND2

1
2
3
4
5
6

X701

PGND3

V12

DRE0 DRE1
DRE2 DRE3
DRE4 DRE5
DRE6 DRE7
DRO0 DRO1
DRO2 DRO3
DRO4 DRO5
DRO6 DRO7

DGE0 DGE1
DGE2 DGE3
DGE4 DGE5
DGE6 DGE7
DGO0 DGO1
DGO2 DGO3
DGO4 DGO5
DGO6 DGO7

DBE0 DBE1
DBE2 DBE3
DBE4 DBE5
DBE6 DBE7
DBO0 DBO1
DBO2 DBO3
DBO4 DBO5
DBO6 DBO7

V12

V12

C708

16V 100u

C709

0.1u

R718

0

PGND2

C710

0.1u

V12

GND

R709
NO

88

1 2 3 4 56

A

B

C

D

6

54321

D

C

B

A

Title

Number RevisionSize

C

Date: 5-Nov-2003 Sheet of
File: F:\temp2\A-USER\sVER6.0(98).schDrawn By:

132

4

876

5

N2

AT24C016-10PC

X3

JY-3536-01-250

5V15V

2

GND3GND

4

12V512V

6

GND7GND

8

X9

C3
470pC2152p

C1

16V 10u

L1 10uH

R1 100
R2 100

R3 1K R4

27K

C4 100n

R53KR6

22

C6
1n8C82n2C710n

C10
10n

C11
2n2

C9
1n8

R722R8

3K

C12
16V 10u

C13
470p

C14
1n5

C15

16V 220u

C16

50V 3u3

C17
100n

C22 47n

C23 47n

C24 100n

C25 16V 10u

L3

10uH

C29 56p
C30 56p

C31 1.5P

C32 1.5P

C28 1n5

C27 470p

C26 16V 10u

G1

18.432MHz

NC

1

BT

2

+5V

3

SCL

4

SDA

5

AS

6

AFC

7

NC

8

AGC

9

IF

10

SIFOUT

11

CVBS

12

+5V IF

13

AF O/P

14

U1

JS-6ADW-134

C102

16V 10u

C101
100n

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

P17

P11

P12

P13

P14

P15

P16

P10

GNDP1

VSUPP1

VOUT

VRT

SGND

GNDAF

VSUPAF

CBIN

CIN1

CIN2/CRIN

VIN1

VIN2

VIN3

VIN4

TEST

HOUT

VSUPD

GNDD

FLBIN

RIN

GIN

BIN

VPROT

SAFETYHFLB

VERTQ

VERT

EN

SENSE

GNDM

RSW1

RSW2

SVMOUT

ROUT

GOUT

BOUT

VSUPAB

GNDAB

VRD

XREF

AIN3

AIN2

AIN1

AOUT1

AOUT2

VSUPS

GNDS

XTAL1

XTAL2

RESQ

SCL

SDA

P20

P21

P22

P23

N1 VCT3833

L101
100uH

C104
16V 10u

C105
47n

C107
100n

C106

16V 47u

V101

BC857

L102
100uH

R102
100

R101

100

C110

680n

CVBS

C111

680n

C112

680n

C113

680n

C114
100n

C115

16V 22u

L105
100uH

L110
10uH

C131
16V 47u

C130
100n

C133
16V 47u

C132
100n

R130
10K

L106
100uH

C135

16V 47u

C134
100n

C136
10p

C137
10p

G101

20.25MHz

C143
16V 10u

C144
100n

12345

SCL2

SDA2

GND

BUSY

REQ

X8

C21 47n

C20 47n

C19 47n

C18

47n

SD

1

RINP

3

RINN

2

V2P5

4

BSLP

24

LOUTP

21

PVCCL

22

PVCCL

23

LINP

5

LINN

6

LOUTP

20

PGNDL

19

AVDDREF

7

PGNDL

18

VREF

8

VARDIFF

9

VARMAX

10

VOLUME

11

GND

12

LOUTN

17

PVCCL

15

LOUTN

16

PVCCL

14

BSLN

13

VCLPR36AVCC33MODE34MODE_OUT

35

VAROUTR32VAROUTL31AGND30AVDD29ROSC27COSC28AGND26VCLPL

25

BSRN

48

ROUTN

45

PVCCR

46

PVCCR

47

ROUTN

44

PGNDR

43

PGNDR

42

ROUTP

41

PVCCR

39

ROUTP

40

PVCCR

38

BSRP

37

N8

TPA3002D2

C54

1uF

C55

1uF

C56

1uF

C57 1uF

C58 1uF

R15
1K5

R14
910

L5
33uH

L6
33uH

C59
10n

C60
100n

C61

16V 10u

C63
470n

C62
100n

C64
100n

C65

100n

C66

16V 10u

C67
10n

L9
33uH

L10
33uH

C74
10n

C75
100n

C76
16V 10u

C78
470n

C77
100n

C80
100n

C81
10n

C82
16V 1000u

C79

10n

C68
1uF

C69 220p

C70 100n

C71 100n

C72

16V10u

C73
1uF

R20

120K

C49
100n

C48

16V 10u

C34

50V 2u2

C33

50V 2u2

C44
4n7

R93KR10

1K5

C4716V 10u

C35

18n

C39
680n

C38
10n

C36
470p

X2

L109
10uH

C152
100n

C151
16V 10u

L108
10uH

C145

100n

C146

16V 10u

CVBS

R136
100

R21
10K

R22
10K

R23
75

R26
10K

R27
10K

R28
75

SRS STEREO

L

R

RIN

1

SRSPR

3

LIN

2

SRSA

4

PS

14

MONO

11

STEREO

12

GND

13

ROUT

5

SRSNR

6

MUTE

10

Vcc

9

SRSNL

7

LOUT

8

LPF

15

HPF

16

BPF

17

L+R

18

REFIN

19

REFOUT

20

N6

M62494E

Vin

GND

Vout

N3 LT1117

C142
100n

RESET

12345

R

GND

L

GND

CVO

6

CVO

X10

C139
10V 47u

C138
100n

C140
10V 100u

C141

10V 47u

SRS MONO

RESET

R132
2K7

R133
2K7

C45
10n

C46

100n

R13
2K

R12
3K9

C43
220n

C42
100n

C40
470p

SRS STEREO

SRS MONO

ROUT1

LOUT1

LOUT1 ROUT1

L4

33uH

C83

16V 10u

L1210uH

1

GND

2

3

GND

4

5

GND

6

Hs

7

GND

8

Vs

9

R

G

B

X7

GND

R109

10K

C153 1n

C154
25V 470u

R108
75

R3075R31

75

GNDGND

GND

13

2

N4

KIA7027

GNDP

GNDA

GNDS

GNDS

GNDS

GND

GND

GND

GNDA

GND

GND

GND

GND

GND

AGND

GND

GND

GNDGND

GND

GND

X5

X1

1

GND

2

3

GND

4

5

GND

6

7

R

L

R

L

X6

X4

S-402

R32
10K

R33
10K

GND GND

MONO

GND

GND

9V

12V-IN

5V

5V

5V

3.3V

12V-IN 5V-IN

5V

5V

3.3V

AV2-RIN

AV2-LIN

2VIN

LOUTN

LOUTP

ROUTP

ROUTN

ROUT2

LOUT2

AV1/Y1

C1

AV1-RIN

AV1-LIN

1VIN

1S-RIN

1S-LIN

2S-RIN

2S-LIN

ROUT

GOUT

BOUT

Hs

BUSY

SDA2

SCL2

SDA1

SCL1

SCL1

SDA1

SDA1

SCL1

SCL2

SDA2

BUSY

C1

AV1/Y1

1VIN

2VIN

AV2-RIN

AV1-RIN

AV2-LIN

AV1-LIN

1S-RIN

2S-RIN

1S-LIN

2S-LIN

ROUTN

ROUTPLOUTP

LOUTN LOUT2

ROUT2

C84 470n

BOUT

GOUT

ROUT

GNDS

C85

10V 22uF

C86

10V 22uF

R34 100
R35 100

R36
47K

R37
47K

GNDS

12V-1

12V-1

12V-1 12V-1

C157 5p

C158

5p

GNDS

C87

47n

C88

47n

REQ

REQ

R144
470

GNDAF

PGND

GNDAF

GNDS

GNDD

L15
Y

L16
Y

L17
Y

L18
Y

3GND

2GND

1GND

4GND GND

GND

GND

GND

NC1I2C-CL2I2C-DA3I2S-CL4I2S-WS5I2S-DA-OUT6I2S-DA-IN17ADR-DA8ADR-WS9ADR-CL10DVSUP11DVSUP12DVSUP13DVSS14DVSS15DVSS16I2S-DA-IN217NC18NC19NC20RESETQ21NC22NC23DACA_R

24

DACA_L

25

VREF2

26

DACM_R

27

DACM_L

28

NC

29

DACM_SUB

30

NC

31

NC

32

SC2_OUT_R

33

SC2_OUT_L

34

VREF1

35

SC1_OUT_R

36

SC1_OUT_L

37

CAPL_A

38

AHVSUP

39

CAPL_M

40

NC41NC

42

AHVSS43AHVSS

44

AGNDC

45

NC

46

SC4_IN_L47SC4_IN_R

48

ASG

49

SC3_IN_L50SC3_IN_R

51

ASG

52

SC2_IN_L53SC2_IN_R

54

ASG

55

SC1_IN_L56SC1_IN_R57VREFTOP

58NC59

MONO_IN

60

AVSS61AVSS

62

NC63NC

64

AVSUP

65

AVSUP

66

ANA_IN1+

67

ANA_IN1-

68

ANA_IN2+

69

TESTEN

70

XTAL_IN

71

XTAL_OUT

72

TP

73

AUD_CL_OUT

74

NC

75

NC

76

D_CTR_I/O_1

77

D_CTR_I/O_0

78

ADR_SEL

79

STANDBYQ

80

N5

MSP3450G

GNDD

5V

5V

GND

GND

AGND

MONO

5V

QSS

AGND

GNDD

R24
10K

Vs

V107

2SC1015

V106

2SC1015

V105

2SC1015

V104

2SC1815

R111
22K

R112 100

R113
560

R114 27

R115 100

R116
22K

R117
560

R118 27

R119 100

R120
22K

R121
560

R122 27

C116

220p

C117

220p

C118

220p

R12422R123

1K

C124
100n

C123
16V 47uF

GNDA

C121
100n

C122

16V 22uF

R125
4R7

GNDA

5V

GNDS

GNDS

GNDS

3.3V-1

GND

R126
100

V102
BC847

V103
BC847

R127
4K7

R128
500

R135
500

5V

GND

GND

Hs

Vs

5V

GND

R105
4R7

C108

10V100u

Vin

GND

Vout

N11 LT1117

3.3V-1

R146 100

R147 100

R148 100

R149 100

QSS

5V

R142
270

5V

IN OUT

12V-IN

GND

9V

L107
33uH

C149

25V 470uF

5V-IN 5V

5V

GND

GND

C148

10V 47u

D4
574

3

21

N9

LM7809

3

21

N10

HW0038

R1510R150

0

GND

IR

LED

LED

IR

R106

0

5V

4

SCL

3

SDA

2

GND

1

X11

5V

GND

GND

BUSY

R139
10K

3.3V

BUSY

C53

16V 47uF

C50

16V 47uF

C52

16V 10u

C51
100n

9V

132

4

876

5

N7

TLE2412

HEADPR
HEADPL

R41

10K
R40
10K

R3910K

R38
10K

GND

GND

HEADPL

HEADPR

GNDD

V108
BC857

V109
BC847

R145
100

R140
1K

R141
10K

R138
1K

R137
100

C150

16V 47uF

C147

0.1uF

GND GND

GND

GND

12V-IN

D1
LL4148

GNDS

C125
100n

C126
10V 47u

GNDS

V111
DTC144KEA

V112
BSS138

V113
BSS138

R129
30K

GND

R134
100

C90
1n

C89
1n

GND

GND

R16
100

GNDS

C91

50V 2u2

C92

50V 2u2

D3

LL4148D2LL4148

5V

GNDAF

R42
100

R43
100

C159

10n

GND

C127

22n

R152
10k

GND

C155
10n

GND

V110

BC847

R103
3K3

R104
3K3

C156
1u

GND

5V

R131

0

28