LG 42PC5DH, 42PC5DH UL Schematic

PLASMA TV

SERVICE MANUAL

CAUTION

BEFORE SERVICING THE CHASSIS, READ THE SAFETY PRECAUTIONS IN THIS MANUAL.

CHASSIS :PA75C

MODEL : 42PC5DH 42PC5DH-UL

website:http://biz.LGservice.com

Internal Use Only

SAFETY PRECAUTIONS

Many electrical and mechanical parts in this chassis have special safety-related characteristics. These parts are identified by in the Schematic Diagram and Replacement Parts List. It is essential that these special safety parts should be replaced with the same components as recommended in this manual to prevent X-RADIATION, Shock, Fire, or other Hazards. Do not modify the original design without permission of manufacturer.

General Guidance

An lsolation Transformer should always be used during the servicing of a receiver whose chassis is not isolated from the AC power line. Use a transformer of adequate power rating as this protects the technician from accidents resulting in personal injury from electrical shocks.

It will also protect the receiver and it's components from being damaged by accidental shorts of the circuitary that may be inadvertently introduced during the service operation.

If any fuse (or Fusible Resistor) in this monitor is blown, replace it with the same specified type.

When replacing a high wattage resistor (Oxide Metal Film Resistor, over 1W), keep the resistor 10mm away from PCB.

Keep wires away from high voltage or high temperature parts.

Leakage Current Cold Check(Antenna Cold Check)

With the instrument AC plug removed from AC source, connect an electrical jumper across the two AC plug prongs. Place the AC switch in the on positioin, connect one lead of ohm-meter to the AC plug prongs tied together and touch other ohm-meter lead in turn to each exposed metallic parts such as antenna terminals, phone jacks, etc. If the exposed metallic part has a return path to the chassis, the measured resistance should be between 1MΩ and 5.2MΩ. When the exposed metal has no return path to the chassis the reading must be infinite. An other abnormality exists that must be corrected before the receiver is returned to the customer.

Leakage Current Hot Check (See below Figure)

Plug the AC cord directly into the AC outlet. Do not use a line Isolation Transformer during this check. Connect 1.5K/10watt resistor in parallel with a 0.15uF capacitor between a known good earth ground (Water Pipe, Conduit, etc.) and the exposed metallic parts. Measure the AC voltage across the resistor using AC voltmeter with 1000 ohms/volt or more sensitivity. Reverse plug the AC cord into the AC outlet and repeat AC voltage measurements for each esposed metallic part. Any voltage measured must not exceed 0.75 volt RMS which is corresponds to

0.5mA. In case any measurement is out of the limits sepcified, there is possibility of shock hazard and the set must be checked and repaired before it is returned to the customer.

Leakage Current Hot Check circuit

CANADA: LG Electronics Canada, Inc. 550 Matheson

Boulevard East Mississauga, Ontario L4Z 4G3

USA : LG Customer Interactive Center

P.O.Box 240007, 201 James Record Road Huntsville, AL 35824 Digital TV Hotline 1-800-243-0000

IMPORTANT SAFETY NOTICE

0.15uF

To Instrument's exposed  METALLIC PARTS

AC Volt-meter

Good Earth Ground such as WATER PIPE, CONDUIT etc.

1.5 Kohm/10W

LGE Internal Use Only

SPECIFICATIONS.................................................................4

ADJUSTMENT INSTRUCTIONS ..........................................5

BLOCK DIAGRAM ..............................................................11

EXPLODED VIEW...............................................................20

EXPLODED VIEW PARTS LIST .........................................21

REPLACEMENT PARTS LIST............................................22

SCHEMATIC DIAGRAM..........................................................

PRINTED CIRCUIT BOARDS.................................................

TABLE OF CONTENTS

LGE Internal Use Only

SPECIFICATIONS

-

The specifications shown above may be changed without prior notice for quality improvement.

MODELS

Dimensions

(Width x Height x Depth)

Weight

Power requirement Television System Program Coverage External Antenna Impedance

Environment condition

Including stand

Excluding stand

including stand excluding stand

Operating Temperature Operating Humidity

Storage Temperature Storage Humidity

42PB4DA

(42PB4DA-UA)

44.5 x 30.2 x 12.2 inches

1130.0 x 768.1 x 310.4mm

44.5 x 28.1 x 3.3 inches

1130.0 x 715.0 x 85.0 mm

75.8 pounds / 34.4 kg

68.0 pounds / 30.8 kg

NTSC-M, ATSC, 64 & 256 QAM

VHF 2-13, UHF 14-69, CATV 1-135, DTV 2-69, CADTV 1-135

50PB4DA

(50PB4DA-UA)

51.5 x 35.7 x 14.6 inches

1308.0 x 906.1 x 370.0 mm

51.5 x 33.3 x 3.5 inches

1308.0 x 845.0 x 89.5 mm

93.5 pounds / 42.4 kg

83.1 pounds / 37.7 kg

AC100-240V ~ 50/60Hz

75 ohm

32 ~ 104°F (0 ~ 40°C)

Less than 80%

-4 ~ 140°F (-20 ~ 60°C) Less than 85%

60PB4DA

(60PB4DA-UA)

60.9 x 41.8 x 17.6 inches

1548.0 x 1061.0 x 448.0 mm

60.9 x 38.9 x 3.9 inches

1548.0 x 988.0 x 98.5 mm

163.1 pounds / 81.0 kg

135.6 pounds / 61.5 kg

LGE Internal Use Only

1. Application Range

This spec sheet is applied all of the PDP TV, PA75C chassis.

2. Specification

(1) Because this is not a hot chassis, it is not necessary to use

an isolation transformer. However, the use of isolation

transformer will help protect test equipment. (2) Adjustments must be done in the correct order. (3) The adjustments must be performed in the circumstance of

25±5°C of temperature and 65±10% of relative humidity if

there is no specific designation. (4) The input voltage of the receiver be must kept 110V, 60Hz

when adjusting. (5) The receiver must be operational for about 15 minutes

prior to the adjustments.

1) After receiving 100% white pattern, the receiver must be operated prior to adjustment. (Or 8. Test Pattern condition in EZ - Adjust)

2) Enter into White Pattern

- Press POWER ON Key on the Service Remote

Control (S R/C)

- Enter the Ez - Adjust by pressing ADJ Key on the

Service Remote Control (S R/C).

- Select 10. Test Pattern using the CH +/- Key and

select the White by pressing the direction Key. Display the 100% Full White Pattern.

[ Set is activated HEAT-RUN without signal generator in

this mode.

O HEAT RUN

Preliminary action is applied to the test for afterimage discharge detection, and 100% FULL WHITE PATTERN must be operated automatically.

O Test for afterimage discharge detection

1) Pressing Power On key

- Only operating by pressing Power On key

2) Full Test Pattern(2 min 30sec) --> Full Black Pattern(30sec) --> Full White Pattern(maintenance)

- Full White Pattern when the main power is turned on

again after being turned off

3) Pattern Mode is deselected by pressing CH +/-, Exit Key.

[ Set is activated HEAT-RUN without signal generator in this

mode.

ADJUSTMENT INSTRUCTIONS

If you turn on a still screen more than 20 minutes (Especially Digital pattern(13 CH), Cross Hatch Pattern), an afterimage may occur in the black level part of the screen.

Test Pattern 2min 30sec

Test Pattern 30sec

LGE Internal Use Only

3. PSU(Power Supply Unit) Voltage Adjustment

(Va, Vs Voltage Adjustment)

Adjust the voltages Va and Vs supplied from the PSU to the module within the specified range of each module to supply the stable power

3-1. Test Equipment

(1) D.M.M 1EA (2) Voltage adjustment bar

3-2. Adjustment(60”)

(1) Va Voltage Adjustment

1) Connect + terminal of D.M.M to Va pin of P812 and connect – terminal to GND pin of P812.

2) Adjust VR901 voltage to match that of the label on the Top/Right of the panel. (Deviation : ±0.5V)

(2) Vs Voltage Adjustment

1) Connect + terminal of D.M.M to Vs pin of P812 and connect – terminal to GND pin of P812.

2) Adjust VR951 voltage to match that of the label on the Top/Right of the panel. (Deviation : ±0.5V)

3-3. Adjustment (50”)

(1) Va Adjustment

1) Connect + terminal of D.M.M to Va pin of P12 and connect – terminal to GND pin of P12.

2) Adjust VR951 voltage to match that of the label on the Top/Right of the panel. (Deviation : ±0.5V)

(2) Vs Adjustment

1) Connect + terminal of D.M.M to Vs pin of P12 and connect – terminal to GND pin of P12.

2) Adjust VR901 voltage to match that of the label on the Top/Right of the panel. (Deviation : ±0.5V)

3-4. Adjustment(42”)

(1) Va Voltage Adjustment

1) Connect + terminal of D.M.M to Va pin of P812 and connect – terminal to GND pin of P812.

2) Adjust VR901 voltage to match that of the label on the Top/Right of the panel. (Deviation : ±0.5V)

(2) Vs Voltage Adjustment

1) Connect + terminal of D.M.M to Vs pin of P812 and connect – terminal to GND pin of P812.

2) Adjust VR951 voltage to match that of the label on the Top/Right of the panel. (Deviation : ±0.5V)

ADJUSTMENT INSTRUCTIONS

Each PCB assembly must be checked by check JIG set. (Because power PCB Assembly damages to PDP Module, especially be careful)

Connection Diagram of Power Adjustment for Measuring

(Power Board): 60”

Connection Diagram of Power Adjustment for Measuring

(Power Board): 50”

Connection Diagram of Power Adjustment for Measuring

(Power Board): 42”(EAY32808901)

LGE Internal Use Only

4. Component 480i/1080p RGB 1080p Adjustment

Component 480i/1080p RGB 1080p adjustment to set the black level and the Gain to optimum.

4-1. Test Equipment

(1) Service R/C (2) 801GF(802B, 802F, 802R) or MSPG925FA Pattern

Generator (480i/1080i The Horizontal 100% Color Bar Pattern adjust to within 0.7±0.1Vp-p)

[ Because the above pattern can differ by the model and

pattern for each device, you must check the pattern first.

4-2. ADC 480i Component1 Adjustment

(1) Check the connection Component1 to the Test Equipment.

(MSPG-925FA => Model: 209, Pattern: 65)

(2) Select Component1 as the input with 100% Horizontal

Color Bar Pattern(HozTV31Bar) in 480i Mode and select ‘Normal’ in screen.

(3) After receiving signal for at least 1 second, press the ADJ

Key on the Service R/C to enter the ‘Ez - Adjust’ and select the ‘3. ADC 480i Comp1’. Pressing the Enter Key to adjust automatically.

(4) When the adjustment is over, 'ADC Component1 Success’

is displayed.

(5) If the adjustment has errors, 'ADC Component1 480i Fail’

is displayed. And error massage(‘Component1 Not Connected’ or ‘Not Valid Format’ or ‘Check Signal Status’) is displayed for 1 second.

4-3. ADC 1080i Component1/RGB

Adjustment

(1) Check the connection Component1, RGB to the Test

Equipment (MSPG-925FA => Model: 225, Pattern: 65)

(2) Select Component1 as the input with 100% Horizontal

Color Bar Pattern(HozTV31Bar) in 1080i Mode and select ‘Normal’ in screen.

(3) After receiving signal for at least 1 second, press the ADJ

Key on the Service R/C to enter the ‘Ez - Adjust’ and select the ‘4. ADC 1080i Comp1/RGB’. Pressing the Enter Key to adjust automatically component1.

(4) When the adjustment is over, 'ADC Component1 Success’

is displayed. If the adjustment has errors, 'ADC Component1 1080i Fail’ is displayed.

(5) After the Component1 adjustment is over, convert the

RGB-DTV Mode and start RGB adjustment. When the adjustment is over, 'ADC RGB 1080P Success’ is displayed.

(6) Readjust after confirming the case Pattern or adjustment

condition where the adjustment errors. Error massage is ‘Component1 Not Connected’ or ‘Not Valid Format’ or ‘Check Signal Status’.

(7) After adjustment is complete, exit the adjustment mode by

pressing the ADJ KEY.

5. EDID(The Extended Display

Identification Data)/DDC (Display Data Channel) Download

It is the feature to implement the “Plug and Play” which automatically reconfigures the user’sl environment to directly use by exchanging information without any command directly to the PC or the monitor by the user, which is established by the VESA

5-1. HDMI EDID Data Input

(1) Required Test Equipment

1) PC, Jig for adjusting DDC. (PC serial to D-sub Connection equipment)

2) S/W for writing DDC(EDID data write & read)

3) D-Sub cable

4) Jig for HDMI Cable connection

(2) Preparation for Adjustments &

Setting of Device

1) Set devices as below and turn on the PC and JIG.

2) Open S/W for writing DDC (EDID data write & read). (operated in DOS mode)

ADJUSTMENT INSTRUCTIONS

<Fig. 1> Adjustment Pattern: 480i/1080i 60Hz Pattern

LCD TV SET

(or Digital Board)

LGE Internal Use Only

5-2. EDID DATA for PA75C

: EDID for HDMI-1 (DDC (Display Data Channel) Data)

EDID table =

: EDID for HDMI-2 (DDC (Display Data Channel) Data)

EDID table =

: EDID for HDMI-3 (DDC (Display Data Channel) Data)

EDID table =

: EDID DATA for RGB

EDID table =

ADJUSTMENT INSTRUCTIONS

0123456789ABCDEF

000FFFFFFFFFFFF001E6D010001010101 10 00 11 01 03 80 73 41 96 0A CF 74 A3 57 4C B0 23 20 09 48 4C AF CF 00 31 40 45 40 61 40 81 80 A9 40 30 01 01 01 01 01 01 66 21 50 B0 51 00 1B 30 40 70

40 36 00 C4 8E 21 00 00 1E 02 3A 80 18 71 38 2D 40 50 58 2C 45 00 C4 8E 21 00 00 1E 00 00 00 FD 00 30 60 58 1F 64 11 00 0A 20 20 20 20 20 20 00 00 00 FC 70 00 4C 47 20 54 56 0A 20 20 20 20 20 20 20 01 8A

0123456789ABCDEF

0020316F1478405030220221023150750

10 65 03 0C 00 10 00 01 1D 00 72 51 D0 1E 20 6E 28 20 55 00 C4 8E 21 00 00 1E 01 1D 80 18 71 1C 16 20 30 58 2C 25 00 C4 8E 21 00 00 9E 8C 0A D0 8A 20 E0 40 2D 10 10 3E 96 00 C4 8E 21 00 00 18 8C 0A D0 8A 50 20 E0 2D 10 10 3E 96 00 13 8E 21 00 00 18 26 36 60 80 A0 70 38 1F 40 30 20 25 00 C4 8E 21 00 00 1A 70 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 10

0123456789ABCDEF

000FFFFFFFFFFFF001E6D010001010101 10 00 11 01 03 80 73 41 96 0A CF 74 A3 57 4C B0 23 20 09 48 4C AF CF 00 31 40 45 40 61 40 81 80 A9 40 30 01 01 01 01 01 01 66 21 50 B0 51 00 1B 30 40 70 40 36 00 C4 8E 21 00 00 1E 02 3A 80 18 71 38 2D 40 50 58 2C 45 00 C4 8E 21 00 00 1E 00 00 00 FD 00 30 60 58 1F 64 11 00 0A 20 20 20 20 20 20 00 00 00 FC 70 00 4C 47 20 54 56 0A 20 20 20 20 20 20 20 01 8A

0123456789ABCDEF

0020316F1478405030220221023150750 10 65 03 0C 00 20 00 01 1D 00 72 51 D0 1E 20 6E 28 20 55 00 C4 8E 21 00 00 1E 01 1D 80 18 71 1C 16 20 30 58 2C 25 00 C4 8E 21 00 00 9E 8C 0A D0 8A 20 E0 40 2D 10 10 3E 96 00 C4 8E 21 00 00 18 8C 0A D0 8A 50 20 E0 2D 10 10 3E 96 00 13 8E 21 00 00 18 26 36 60 80 A0 70 38 1F 40 30 20 25 00 C4 8E 21 00 00 1A 70 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00

0123456789ABCDEF

000FFFFFFFFFFFF001E6D010001010101 10 00 11 01 03 80 73 41 96 0A CF 74 A3 57 4C B0 23 20 09 48 4C AF CF 00 31 40 45 40 61 40 81 80 A9 40 30 01 01 01 01 01 01 66 21 50 B0 51 00 1B 30 40 70 40 36 00 C4 8E 21 00 00 1E 02 3A 80 18 71 38 2D 40 50 58 2C 45 00 C4 8E 21 00 00 1E 00 00 00 FD 00 30 60 58 1F 64 11 00 0A 20 20 20 20 20 20 00 00 00 FC 70 00 4C 47 20 54 56 0A 20 20 20 20 20 20 20 01 8A

0123456789ABCDEF

0020316F1478405030220221023150750 10 65 03 0C 00 30 00 01 1D 00 72 51 D0 1E 20 6E 28 20 55 00 C4 8E 21 00 00 1E 01 1D 80 18 71 1C 16 20 30 58 2C 25 00 C4 8E 21 00 00 9E 8C 0A D0 8A 20 E0 40 2D 10 10 3E 96 00 C4 8E 21 00 00 18 8C 0A D0 8A 50 20 E0 2D 10 10 3E 96 00 13 8E 21 00 00 18 26 36 60 80 A0 70 38 1F 40 30 20 25 00 C4 8E 21 00 00 1A 70 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 F0

0123456789ABCDEF

000FFFFFFFFFFFF001E6D010001010101 10 00 11 01 03 18 73 41 96 0A CF 74 A3 57 4C B0 23 20 09 48 4C AF CF 00 31 40 45 40 61 40 81 80 A9 40 30 01 01 01 01 01 01 66 21 50 B0 51 00 1B 30 40 70 40 36 00 C4 8E 21 00 00 1A 02 3A 80 18 71 38 2D 40 50 58 2C 45 00 C4 8E 21 00 00 1E 00 00 00 FD 00 30 60 58 1F 64 11 00 0A 20 20 20 20 20 20 00 00 00 FC 70 00 4C 47 20 54 56 0A 20 20 20 20 20 20 20 01 F6

0123456789ABCDEF

0020304000E1F008051001E3040803700 10 C4 8E 21 00 00 1C F1 27 00 A0 51 00 25 30 50 80 20 37 00 C4 8E 21 00 00 1C 00 00 00 00 00 00 00 00 30 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 40 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 50 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 60 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 70 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 31

LGE Internal Use Only

6. Adjustment of White Balance

6-1. Required Test Equipment

(1) Color Analyzer : CA-210 (CH 9)

=> To adjust color temperature of PDP, CS-1000 is the

Color Analyzer(CA-210) and should be set to use CH 9 in which white, red, green, and blue color are corrected. Conduct the adjustment according to the coordinates for White Balance adjustment in the table below.

(2) Computer for adjusting (necessary for the automatic

adjustment, possible to communicate with the RS-232C, Baud Rate : 115200)

(3) Video Signal Generator MSPG-925F 720p, 216Gray

(Model :217, Pattern 78)

6-2. Connection Diagram of Equipment

for Measuring

(Automatic Adjustment)

6-3. White Balance Adjustment Method

Basically it uses the internal pattern but when internal pattern is not possible, you can select HDMI input for adjustment. Through the option at the most bottom part of the Ez Adjust Menu 7.White Balance menu, you can select NONE, INNER and HDMI, and the default is set to INNER. When the adjustment cannot be done with the internal pattern, you can select HDMI input for adjustment.

For manual adjustment, press the ADJ KEY of the adjustment R/C to enter Ez Adjust 7.White-Balance, and the pattern is automatically displayed. (When you set the Option to INNER, the default is always set to INNER)

(1) Connect the set according to the internal pattern or HDMI

input in accordance with measuring device connection diagram.

(2) Set the Baud Rate of RS-232C to 115200. It is set to

115200 as default. (3) Connect the RS-232C Cable to the set. (4) Connect the HDMI Cable to the set. (Limited to the set with

HDMI option) (5) Select and adjust the model applicable to PA75C chassis

from the adjuster.

[RS-232C command used for the automatic adjustment]

Ô Wb 00 00-----white balance Automatic Adjustment Start Ô Wb 00 10-----Gain Adjustment start (Internal pattern) Ô Ja 00 ff------Adjustment Data Ô Jb 00 c0 Ô ... Ô Wb 00 1f-----Gain Adjustment End Ô *(wb 00 20(Start), wb 00 2f(End))----- When adjust Off-set Ô Wb 00 ff------White Balance Automatic Adjustment End

(Disappear Inside pattern)

[Adjustment Map]

ADJUSTMENT INSTRUCTIONS

Connection Diagram for Internal Pattern

Connection Diagram for HDMI Input

wb wb wb wb wb wb

00 00 00 00 00 00

00 10

1f

20

2f

ff

White Balance Adjustment Start Gain Adjustment Start(Internal white pattern) Gain Adjustment End Offset Adjustment Start(Internal white pattern) Offset Adjustment End White Balance Adjustment End (Disappear Internal pattern)

RS-232C COMMAND

[CMD ID DATA]

Meaning

R Gain

G Gain

B Gain

R Cut

G Cut

B Cut

Jg

Jh

Ji

Cool

Ja

Jb

Jc

Mid

RS-232C COMMAND

[CMD ID DATA]

CENTER

(DEFAULT)

Jd

Je

Jf

00

192

127

Warm

Min Max

184

187

192

64

Cool

192

183

161

64

Mid

192

159

95

64

Warm

(internal pattern)

LGE Internal Use Only

6-4. Automatic Adjustment

(1) Execute POWER ON(Â) of the adjustment R/C to execute

automatic adjustment. (2) Set the Baud Rate to 115200. (3) Always start adjustment with “wb 00 00” and end

adjustment with “wb 00 ff” (4) Adjust the offset if necessary

6-5. Manual Adjustment

(1) Required Test Equipment: CA-210

=> To adjust color temperature of PDP, CS-1000 is the

Color Analyzer(CA-210) and should be set to use CH 9 in which white, red, green, and blue color are corrected. Conduct the adjustment according to the coordinates for White Balance adjustment in the table below.

(2) Enter the ‘Ez - Adjust’ by pressing the ADJ on the Service

R/C. (3) Select 10.TEST PATTERN using the CH + / - KEY and

press the Enter KEY to execute a heat run for more than

30 minutes. (4) Execute a Zero Calibration for CA-210 and put it at

distance of less than 10Cm from the PDP module surface center during the adjustment.

(5) Select ‘7. White-Balance’ of ‘Ez - Adjust’ by pressing the

ADJ KEY on the Service R/C. Then enter adjustment mode

by pressing the Right KEY (

G

) .

(The internal pattern of full white appears by pressing

G

)

(6) The adjustment is conducted in three levels of color

temperature; COOL, MEDIUM, and WARM.

When the white balance is Cool,

Fix B Gain 192, fix R-Cut / G-Cut / B-Cut 64,

and use R Gain / G Gain to adjust the High Light.

When the white balance is Medium,

Fix R Gain 192, fix R-Cut / G-Cut / B-Cut 64,

and use G Gain / B Gain to adjust the High Light.

When the white balance is Warm,

Fix R Gain 192, fix R-Cut / G-Cut / B-Cut 64,

and use G Gain / B Gain to adjust High Light.

(7) Use the Vol. +, - key for adjustment. (8) When the adjustment is completed, press the ENTER (

Á

KEY) button to move to the Ez –Adjust screen. Press the

ADJ KEY to exit the adjustment mode.

Full White 216gray

[Cool]

X; 0.276±0.002 Y; 0.283±0.002 Color temperature: 11000°K 9uv: 0.000

[Medium]

X; 0.285±0.002 Y; 0.293±0.002 Color temperature: 9300°K 9uv: 0.000

[Warm]

X; 0.313±0.002 Y; 0.329±0.002 Color temperature: 6500°K 9uv: 0.000

ADJUSTMENT INSTRUCTIONS

LGE Internal Use Only

BLOCK DIAGRAM

Block Diagram - Overview

Audio L/R

Flash

(16MB)

DDR(64MB)

74LVC14APW

TEA6420

(Audio

SW)

MC33078

(AMP)

CS5340

(A/D)

MTV416

(Micom)

NTP3000

(Digital AMP)

X-tal(54M)

TMDS341A

(3x1,S/W)

74F08D

EEPROM

AT/NT

Tuner

64Bit I/F

Reset

CVBS

CVBS/Y/C

Y/Cb/Cr

R/G/B

H/V Sync

RGB-PC

HDMI

0/1/2

COMP 1

COMP 2

AV 1

AV 2

RGB-PC

Audio L/R

I2S

MNT out

( L/R)

SPDIF OUT

I2S

RS-232C

Dead IC when Standby

Option

Alive IC when Standby

Video

Audio

Video

Front

End

Dual

HDMI

Rx

HD/SD

Video

Encoder

Audio

DSP

BCM3553

MCLK

HDMI CEC

(To Micom)

To Micom

SDA

SCL

SIF

IF(AT)

Buffer

Single LVDS

Connector

Digital out (W)XGA

Local KEY

IR

Buffer Buffer

24C16

AGC CTL (From BCM)

USB2.0

I2S Audio Input

VSB/QAM/NTSC/SIF

DDR(128MB)

LGE Internal Use Only

BLOCK DIAGRAM

Signal path for CVBS, Component, RGB

Comp1_Y

H Sync

V Sync

BCM3553

Comp1_Pb

Comp1_Pr

74F08D

Component 1

Input

Component 2

Input

RGB Input

RGB H_Sync

Side AV CVBS

Rear AV

Rear S_Video Y/C

Side S_Video

Y/C

CVBS

CVBS 2

L1/C1

CVBS 3

L2/C2

ANT/ Cable

TUNER

IF_P

IF_N

IF_P from TUNER for DTV

IF_N from TUNER for DTV

CVBS 1

EEPROM

FOR EDID

DDC SDA

DDC SCL

RGB V_Sync

LVDS_Tx

Out

Only for HD

Component_1 S/W

Component_2 S/W

Rear_CVBS_ S/W

RGB S/W

GPIO[0:6]

Comp2_Y

Comp2_Pb

Comp2_Pr

RGB_G

RGB_B

RGB_R

DDC SCL to Micom

for Download

LPF 6 Mhz

LPF 30Mhz

LPF 6 Mhz

DDC SDA to Micom

for Download

DVO Out[0:29]

Rear_S-Video_ S/W

Side_CVBS_ S/W

Side_S-Video_ S/W

31p

LVDS

Con.

31p

LVDS

Con.