PLASMA TV SERVICE MANUAL

Internal Use Only CANADA : http//biz.lgservice.com USA : http//www.lgservice.com : http//biz.lgservice.com

PLASMA TV SERVICE MANUAL CHASSIS : PU82C

MODEL : 60PG60

60PG60F-UA

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

INPUT

MENU

ENTER

VOL

CH

SAFETY PRECAUTIONS IMPORTANT SAFETY NOTICE 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.

Leakage Current Hot Check (See below Figure)

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.

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.

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

Leakage Current Hot Check circuit

Keep wires away from high voltage or high temperature parts.

AC Volt-meter 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.

To Instrument's exposed METALLIC PARTS

Good Earth Ground such as WATER PIPE, CONDUIT etc. 0.15uF

1.5 Kohm/10W

CANADA: LG Electronics Canada, Inc. 550 Matheson Boulevard East Mississauga, Ontario L4Z 4G3 USA

Copyright©2008 LG Electronics. Inc. All right reserved. Only for training and service purposes

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

LGE Internal Use Only

TABLE OF CONTENTS SPECIFICATIONS.................................................................4 ADJUSTMENT INSTRUCTIONS ..........................................5 TROUBLE SHOOTING GUIDE ...........................................11 BLOCK DIAGRAM...............................................................16 EXPLODED VIEW...............................................................24 EXPLODED VIEW PARTS LIST .........................................25 SCHEMATIC DIAGRAM.......................................................... PRINTED CIRCUIT BOARDS .................................................


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SPECIFICATIONS

MODELS Dimensions (Width x Height x Depth)

With stand

Weight

With stand Without stand

Without stand

Power requirement Television System Program Coverage External Antenna Impedance Operating Temperature Operating Humidity Environment condition Storage Temperature Storage Humidity

42PG60 (42PG60-UA) 41.1 x 28.9 x 12.1 inches 1044.4 x 735.4 x 308.0 mm 41.1 x 26.7 x 3.1 inches 1044.4 x 680.6 x 79.6 mm 61.7 pounds / 28.0 kg 55.1 pounds / 25.0 kg

50PG60 (50PG60F-UA)

60PG60 (60PG60F-UA)

48.6 x 33.4x 14.3 inches 57.2 x 38.7x 16.2 inches 1235.6 x 849.3 x 364.1 mm 1455.0 x 985.0 x 414.0 mm 48.6 x 31.2 x 3.1 inches 57.2 x 36.4 x 3.3 inches 1235.6 x 792.8 x 79.6 mm 1455.0 x 924.8 x 84.1 mm 96.1 pounds / 43.6 kg 87.5 pounds / 39.7 kg

130.5 pounds / 59.2 kg 113.9 pounds / 51.7 kg

AC100-240V ~ 50/60Hz NTSC-M, ATSC, 64 & 256 QAM VHF 2-13, UHF 14-69, CATV 1-135, DTV 2-69, CADTV 1-135 75 ohm 32 ~ 104°F (0 ~ 40°C) Less than 80% -4 ~ 140°F (-20 ~ 60°C) Less than 85%

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


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ADJUSTMENT INSTRUCTIONS 1. Application Range This spec sheet is applied all of the PDP TV, PU82C 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 220V, 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.

Test Pattern 2min 30sec

Test Pattern 30sec

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

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

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.


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ADJUSTMENT INSTRUCTIONS (2) Vs Adjustment

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

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. 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”) Connection Diagram of Power Adjustment for Measuring (Power Board): 50”

(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

3-4. Adjustment(42”)

Voltage Adjustment

(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


Connection Diagram of Power Adjustment for Measuring (Power Board): 60”

3-3. Adjustment (50”)

Connection Diagram of Power Adjustment for Measuring (Power Board): 42”(EAY32808901)

(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)


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ADJUSTMENT INSTRUCTIONS (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 1080p 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 1080p 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.

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

5. EDID(The Extended Display Identification Data)/DDC (Display Data Channel) Download

Adjustment Pattern: 480i/1080p 60Hz Pattern [ Because the above pattern can differ by the model and pattern for each device, you must check the pattern first.

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

4-2. ADC 480i Component1 Adjustment (1) Check the connection Component1 to the Test Equipment. (MSPG-925FA => Model: 209, Pattern: 65)

5-1. HDMI EDID Data Input

(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 1080p Component1/RGB Adjustment

(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)

LCD TV SET (or Digital Board)

(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 1080p Mode and select ‘Normal’ in screen.


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

5-2. EDID DATA for PU82C

EDID table =

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

: EDID DATA for RGB EDID table =

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


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ADJUSTMENT INSTRUCTIONS 6. Adjustment of White Balance 6-1. Required Test Equipment (1) Color Analyzer : CA-210 (CH 10), CA-100(CH-10), CA100+(CH-10) => To adjust color temperature of Plasma, CS-1000 is the Color Analyzer and should be set to use CH 10 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)

Connection Diagram for HDMI Input

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.

[ Requirements for Automatic Adjustment (1) The illuminance of surroundings 10 lux or less; preventing light in surroundings as much as possible (2) The location of the Probe 1) For PDP: place the color analyzer (CA-100, CA-100+) close to the surface of a module and start the adjustment. 2) For LCD: place the color analyzer (CA-210) close to the surface of a module within 10 cm and keep the probe of the color analyzer at 80° to 100° angle from the surface of a module.

6-2. Connection Diagram of Equipment for Measuring (Automatic 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 PU82C chassis from the adjuster. [RS-232C command used for the automatic adjustment] RS-232C COMMAND Meaning

(internal pattern)

Connection Diagram for Internal Pattern

[CMD

ID

DATA]

wb

00

00

White Balance Adjustment Start

wb

00

10

Gain Adjustment Start(Internal white pattern)

wb

00

1f

Gain Adjustment End

wb

00

20

Offset Adjustment Start(Internal white pattern)

wb

00

2f

Offset Adjustment End

wb

00

ff

White Balance Adjustment End (Disappear Internal pattern)

Wb 00 00-----white balance Automatic Adjustment Start Wb 00 10-----Gain Adjustment start (Internal pattern) Ô Ja 00 ff------Adjustment Data Ô Ô


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ADJUSTMENT INSTRUCTIONS Jb 00 c0 ... 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)

-When R Gain is Fixed at Default value(192) Adjust G gain and B gain with decreasing Default values from 192

[Adjustment Map]

-When G Gain is Fixed at Default value(192) Adjust R gain and B gain with decreasing Default values from 192

Ô Ô

RS-232C COMMAND [CMD ID DATA] Cool

Mid

Warm

R Gain

Jg

Ja

Jd

G Gain

Jh

Jb

B Gain

Ji

Jc

-When B Gain is Fixed at Default value(192) Adjust R gain and G gain with decreasing Default values from 192

CENTER (DEFAULT)

Min

Max One of R/G.B Gain should be fixed at 192 and adjust two Gain Value with decreasing the Default values from 192.

Cool

Mid

Warm

00

184

192

192

192

Je

00

187

183

159

192

Jf

00

192

161

95

192

R Cut

64

64

64

127

G Cut

64

64

64

127

B Cut

64

64

64

127

(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.

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 (CH 10), CA-100(CH10), CA-100+(CH-10) => To adjust color temperature of Plasma, CS-1000 is the Color Analyzer and should be set to use CH 10 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.


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TROUBLE SHOOTING GUIDE

TV/CATV(Analog ) doesn t display Check TU1 Pin16(Video output) Can you see the normal signal?

Could you measure VCC voltage(3Pin) of TU1 & IIC lines(7,8Pin)? Are they all normal?

NO

YES

YES

You should replace TUNER. Check the input(Pin1) of Low-Pass Filter (IC808). Can you see the normal waveform?

NO

After checking the C800(0.1uF Cap), you can suspect that PCB is bad.

YES

Check the output(pin8) of Low-Pass Filter(IC808). Can you see the normal waveform?

NO

After checking the Power of Low-Pass Filter you should decide to replace Low-Pass Filter or not.

NO

After checking the pattern between pin8 of IC808 and C658, you can suspect that PCB is bad..

YES

Check the Capaciter(C658) in front of BCM3553 chip. Can you see the normal waveform?

YES


This board has big problem because Main chip(BCM3550) have some troubles. After checking thoroughly all path once again, You should decide to replace BCM3553 or not.

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Video doesn t display Check JP7004. Can you see the normal waveform?

NO

JK701 may have problem. Replace this Jack.

YES

Check the Registor(R732). Can you see the normal waveform?

NO

replace Part(R732).

YES

Check the C651 in front of BCM3553 chip. Can you see the normal waveform?

NO

After check the pattern between R703 and C651, You can suspect that PCB is bad.

YES



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Component doesn t display Check JP7001,J7015. Can you see the normal waveform?

NO

JK700, JK702 may have problem. Replace this Jack.

YES

Check the L700, L704. Can you see the normal waveform?

NO

Replace the Part (L700, L704)

YES

Check the C638, C628 in front of BCM3553. Can you see the normal waveform?

NO

After check the pattern between L703 and C651, You can suspect that PCB is bad.

YES


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RGB_PC doesn t display Check JP7032,JP7033,JP7034. Can you see the normal waveform?

NO


YES

Check the C635, C636, C637 in front of BCM3553. Can you see the normal waveform?

NO

After check the pattern between input of BCM3553 and JK705 , You can suspect that PCB is bad.

YES

Check JP7029,JP7030. Can you see the normal waveform?

NO


YES



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HDMI doesn t display Check input connect JK602. Can you see the normal waveform?

NO


YES

Check DDC communication lines(IC601 Pin5,6)

NO

After checking the Power of this chip, you should decide to replace this or not.

YES

Check HDCP communication lines(IC102 Pin5,6)

NO

After checking the Power of this chip, you should decide to replace this or not.

YES

Check the input of PI3HDMI341ART(IC600), & IC703(TMDS141RHAR, HDMI4) This signal is TMDS. Can you see the normal waveform?

NO

After checking the trace of TMDS lines and power of PI3HDMI341ART & IC703(TMDS141RHAR, HDMI4), you should decide to replace PI3HDMI341ART & IC703(TMDS141RHAR, HDMI4) or not.

YES

Check the output of PI3HDMI341ART(IC600 ) & IC703(TMDS141RHAR, HDMI4). Can you see the normal waveform?

NO

After checking the Power of PI3HDMI341ART or TMDS141RHAR. you should decide to replace PI3HDMI341ART & TMDS141RHAR or not.

YES

Check the input and output of BCM3553. Especially you should check The H,V sync and clock. Can you see the normal waveform?


YES

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- 16 -

SDA SCL

Audio L/R

COMP 1 COMP 2 AV 1 AV 2 RGB-PC

0/1/2

HDMI

RGB-PC

SIF

CS5345 (Audio SW/ADC/OP_A MP)

HDMI CEC (To Micom)

To Micom

EEPROM

R/G/B

Y/Pb/Pr

Y/Pb/Pr

CVBS

Reset

74LVC14APW

X-tal(54M)

MCLK

(3x1,S/W)

Flash (16MB)

Encoder

Video

HD/SD

USB2.0

SPDIF OUT

Buffer

I2S Audio Input

Dual HDMI Rx

Audio DSP

Video Audio

Option

Alive IC when Standby

Dead IC when Standby

IR

Local KEY

HDMI CEC

NTP3000 (Digital AMP)

MTV416 (Micom)

MCLK

(W)XGA Single Channel FHD Dual Channel

RS-232C

24C16

I2S

Digital out

64Bit I/F

DDR(128MB)

BCM3552(HD)/3(FHD)

Video Front End

VSB/QAM/NTSC/SIF

MNT out ( L/R)

I2S

PI3HDMI341ART

IF(AT)

CVBS/Y/C

Buffer

H/V Sync

Buffer

CVBS

AT/NT Tuner

AGC CTL (From BCM)

Block Diagram - Overview

BLOCK DIAGRAM



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Side AV CVBS

Rear S_Video Y/C

Rear AV CVBS

DDC SCL

DDC SDA

H Sync V Sync

RGB_R

RGB_B

RGB_G

Comp2_Pr

Comp2_Pb

Comp2_Y

Comp1_Pr

Comp1_Pb

LPF 6 Mhz

LPF 6 Mhz

LPF 6 Mhz

EEPROM FOR EDID

LPF 30Mhz

LPF 30Mhz

LPF 30Mhz

LPF 30Mhz

LPF 30Mhz

DDC SCL to Micom for Download

DDC SDA to Micom for Download

IF_N from TUNER for DTV

IF_P from TUNER for DTV

LPF 30Mhz

TUNER

Comp1_Y

ANT/ Cable BCM3552/3

L2/C2

CVBS 3

L1/C1

CVBS 2

RGB H_Sync RGB V_Sync

RGB Input

Component 2 Input

Component 1 Input

IF_N

IF_P

CVBS 1

Signal path for CVBS, Component, RGB

DVO Out[0:29]

LVDS_Tx Out

GPIO[0:6]

RGB S/W

Rear_S-Video_ S/W Side_CVBS_ S/W

Component_1 S/W Component_2 S/W Rear_CVBS_ S/W

26P(HD) 40P(FHD) LVDS LVDS Con. Con.

BLOCK DIAGRAM



- 18 -

EEPROM For EDID

DDC SCL2

DDC SDA2

EEPROM For EDID

TMDS2 RX1+/TMDS2 RX2+/TMDS2 RXCLK+/HDMi —CEC +5V Power_2 Hot Plug Detect_2

HDMI 2 TMDS2 RX0+/-

DDC SCL1

DDC SDA1

Hot Plug Detect_1

TMDS1 RX1+/TMDS1 RX2+/TMDS1 RXCLK+/HDMi —CEC +5V Power_1

HDMI 1 TMDS1 RX0+/-

DDC SCL0

EEPROM For EDID

TMDS0 RX0+/TMDS0 RX1+/TMDS0 RX2+/TMDS0 RXCLK+/HDMi —CEC +5V Power_0 Hot Plug Detect_0

DDC SDA0

HDMI 0

DDC SDA0

DDC SCL2

DDC SDA2

DDC SCL1

DDC SDA1

DDC SCL0

Signal path for HDMI

TMDS2 INPUT

TMDS1 INPUT

TMDS0 INPUT

DDC OUT

TMDS Out

Switch Selection

TMDS341A

DDC SCL

DDC SDA

DDC INPUT

TMDS RX0+/TMDS RX1+/TMDS_Rx TMDS RX2+/Input0 TMDS RXCLK+/-

+5V Power_2

+5V Power_1

+5V Power_0

NCL

NDA

TMDS_Rx Input1

LVDS_Tx Hot Plug Detect_2 GPIO[0:8] Out

Hot Plug Detect_1

Hot Plug Detect_0

HDMi_Sel_2

HDMi_Sel_1

HDMi_Sel_0

BCM355/23

EEPROM For EDID

DDC SDA3

DDC SCL3

HDMI 4

MTV416

Micom

HDCP SCL

HDCP SDA

EEPROM for HDCP

Hot Plug Detect_3 +5V Power_3 HDMi —CEC TMDS3 RXCLK+/TMDS3 RX2+/TMDS3 RX1+/TMDS3 RX0+/-

DDC SDA3

DDC SCL3

LVDS out

HDMi —CEC Parallel connections with HDMi 0,1,2,4

31P 31P LVDS Con. Con.

BLOCK DIAGRAM



- 19 -

Comp1_Audio Comp2_Audio

Switch Switch

[L4 / R4] [Rout/Lout] [L5 / R5]

[L3 / R3]

RGB_Audio

[L1 / R1]

Audio Switch [CS5345]

[L2 / R2]

ANA L/R IN

Buffer Buffer

I2C SCL/SDA

(I2S_MCLK)

BCM_MCLK

I2S_CLK_IN/DATA_IN /LR IN

HDMI_TMDS 0/1/2/3CLK

AV2_Audio

AV1_Audio

HDMI (PC/DTV)

RESET

MNT_L/R OUT

SPDIF OUT(coaxial)

SPDIF OUT

MNT_Audio

Signal path for AUDIO/ IF

Processor

AUDIO

MPEG2 Dolby

Decoder

BTSC

SIF IN

RESET

HDMI Rx Built in Internal I2S/SPDIF Convert

I2C SCL/SDA

Buffer Buffer

OUT1A/B

OUT2A/B

SPK L

SPK R

FRONT END

TUNER (ATSC/NTSC )

PWM MODULATOR/ POWER AMP [NTP3000A]

SIF

CVBS

IF AGC

IF_N

IF_P

I2C SCL/SDA

BCM_MCLK

I2S_CLK_OUT I2S_CLK_OUT/ I2S_DATA_OUT DATA_OUT/ I2S_LR_OUT LRCH OUT (NTP3000A)

I2S_CLK_IN I2S_DATA_IN I2S_LR_IN BCM_MCLK

HDMI_RX_DATA/CLK

[BCM3552/3]

Broadcom

AUD_SPDIF

AUD_LEFT/RIGHT P

BLOCK DIAGRAM



- 20 -

I2C_Channel 3

I2C_Channel 2

I2C_Channel 1

I2C_Channel 0

BCM3553

I2C MAP

I2C3_3.3V

I2C2_3.3V

I2C1_5V

I2C0_5V

4.7K ‰

3.3VST

1K ‰

3.3V

4.7K ‰

5.0V

4.7K ‰

5.0V

PDP MODULE

MTV416

NTP3000

CS5345

NVRAM

HDCP Key EEPROM

ATSC/NTSC Tuner

0x

0x50

0x54

0xD4

0xA6

0x??

0x94

0x74

0x9A

0xC2

Address

BLOCK DIAGRAM



IC811 KA7809

Local key/IR power

+12.0V +12.0V

ST_5V ST_5V

- 21 -

IC408 Comercial

Q805 SI4925BDY

Q804 SI4925BDY

NTP3000A (Sound IC)

+16V +16V

+5.0

+9V

IC402 RS232C Driver

IC404 3.3V_MICOM

AV1/2 Component1/2

RGB SW

IF AGC

HPD 5V

HDMI CEC

IC102 AT24C16AN (EEPROM)

IC202 ICL3232 RS-232C RX/TX

IC803 KIA78R05F

Power Sequence and Flow Diagram

BCM I2C Pull up

TU1 TDVF-H051F

IC809 3.3V_Reg

IC407 MTV416GMF ( micom )

+5V_TUNER

IC805 1.2V_Reg

IC

IC403 NVRAM

IC810 2.6V_Reg

IC201 USB_Power

REG

IC500 CS5345

BIAS

Inv/RL 3.3V->5V

Side power

BLOCK DIAGRAM



+16V +16V

+12V +12V

IC500 NTP300A

IC811 KA7809ERTM

- 22 BIAS

BIAS

+9.0V

RGB Buffer

BCM L/R OUT

IC803 KIA78R05F

Power Sequence and Flow Diagram +5V_TU

REG

Tuner SIF

TUNER

IC

BIAS

Side power

BLOCK DIAGRAM


NOTES


- 23 -


EXPLODED VIEW 305

300

120

306

307

303

304 200

121 204

207

206

205

560 310 571

301 603

209 302

602

201

570

210

208

601 202 250 203

207 205

206

A2

520

580

590

501 240

400

900

901


- 24 -








MAIN(TOP)

CONTROL(TOP)

MAIN(BOTTOM)

PRE AMP(TOP)

CONTROL(BOTTOM) PRE AMP(BOTTOM)



Feb., 2008 Printed in Korea

P/NO : MFL42040401

CANADA: LG Electronics Canada, Inc. 550 Matheson Boulevard East Mississauga, Ontario L4Z 4G3 USA

: LG Electronics Alabama, Inc. P.O.Box 240007, 201 James Record Road Bldg 3 Huntsville, AL 35824