LG Training Manual Lcd Chassis La63E

Great Company Great People

Blue Ocean P³ Innovation

Pacific 2(Broadcom) Training manual

Contents

- Whole system diagram

- What is BCM3550

Great Company Great People

2006.06.14

DDC R&D Center AT1 Gr

Kim Sung-Kyeong

- System in detail

DDC Lab. AT1 Gr

- Trouble shooting guide

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Blue Ocean P³ Innovation

This document is for the lecture of LG service man.

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Product Brief Specification

Feature

Broadcom

Remark

1 RF(Air /Cable)

1 RF

Program Guide Type

O(PSIP)

Use Brief Info

XD Engine

Yes

USE scalier On/Off OSD Menu

Enhanced Noise Reduction

Yes(2D)

Adaptive Picture Mode

Yes

RGB DTV

SRS Trusurround TX

Yes

BBE

Yes

Auto Navigation (Link)

Yes

RGB In (15 Pin)

DOS70,VGA60,S

VGA60,

XGA60,WXGA60,

SXGA60

Phase, SizeAdjust

Others

• Audio Output
10W*2

• Freeze No

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Block diagram for CI DTV

Side AV

V,LR

Rear AV

V, LR

Rear S

YC, LR

Side S

YC, LR

MNT_V_Out

IN1

OUT1

IN4

IN1

IN4

IN5

OUT3

Comp_1 YCbCr

Comp_2 YCbCr

IN3

IN4

CVBS

ATSC/NT

SC Tuner

Cable

ANT.

64-Bit I/F

BCM3560

LVDS
Trans

CXA2069(AV S/W)

VDEC_CVBS/S_Y

VSB/QAM/NTSC/SIF

SPDIF Out

I2S Output

SPDIF_OUT

Flash Memory

16MB

HDMI/DVI

RS-232C

SDRAM

256Mbit

X-tal

54MHz

Reset IC

Audio

PWM L/R

Sub Micom

(MTV416)

Sub Micom

(MTV416)

EEP

ROM

HDMI & Component
RGB-PC

Audio 부

Tuner부

Comp_1

Comp_2

RGB(Phone)

AUDIO ADC

Audio R/L

I2S

I2S Audio Input

MST3361

R/G/B

H/V Sync

DVI Input

Digital Output.

SDRAM

256Mbit

DDS

Data [24]

Hsync/Vsync/DE/Clk

2X1

S/W

2X1

S/W

HDCP

IIC

TMDS

DDS

SPDIF

Y,C

IF P/N for DTV

SIF for NTSC

USB for upgrade S/W

MNT_Out

AUDIO DAC

IIS

Made by S.B Park
Modified by S.K Kim
Date 2006. 2. 9

TMDS

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board PCB Layout

206

ST3232

BCM3560

fla

641

632

641

632

MS
T336

MTV

416MV

Control

CXA2069

TPS

5100

SPK

THC63

LVD103

For PDP

Power & (Fan)

Subject:
PCB Layout for 3’rd board
of CI_Project using BCM3560

made by S.K Kim
date 2006.2.9

CMO

LPL

Jack:JTAG

Side AV

X-tal

Comp S/W

LPF

AUO

USB

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Power flow diagram

+12.0V

KIA78R09

FAN1,2,3

FAN4

SI4925DY

MP1593

CMO, AUO

+9.0V

MC3307

CXA2069

P_+19V

TPA3100

KIA78R09

5V_PANEL

ST_5V

BA033FP

MTV416GMF

3.3VST_MICOM

A3.3V_BCM

BCM3560

+3.3V

SC1566-2.5

BCM3560

HYDU561622

SC1566-2.5

A2.6V_BCM

BCM3560

D2.6V_BCM

BCM3560

SC1566-2.5

+2.5V_MST

MST3361

BCM3560

S29GL128M

THC63LVD

74LVC14A

MST3361

3.3V_MST

DDC

A1.2V_BCM, D1.2V_BCM

BCM3560

+6.0V

PQ05DZ1U

CS4344

+5.0V

AT24C512W

AT24C02N

MM1732

CS5331A

M62320FP

FMS6400

FMS6407

74F08D

LM75CIMX

TPS2042

D3.3V_BCM

+5V_TU

AZ1117H-3.3

BCM3560

TUNER

FSA1156

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BCM3560

AV S/W(CXA2069)

Main EEPROM

4.7KΩ

5.0V

I2C_Channel 0

I2C_Channel 1

ATSC/NTSC Tuner

I2C_Channel 2

I2C_Channel 3

Sub-Micom

I2C0_5V

I2C1_5V

I2C2_3.3V

I2C3_3.3V

I2C1_3.3V

2.7KΩ

3.3V

M62320

4.7KΩ

5.0V

PDP Module

MST3361

3.3V

I2C control block diagram

I2C Address

0x90

0xC2

0x74

0xA6

0x1C

0x50

0x9C

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Detail signal flow in Pacific 2(Broadcom) system

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Video signal path for Composite/S-video/IF

MNT_V_Out

SD_CVBS

CXA2069

OUT3

Side AV

V,LR

Rear AV

V, LR

Rear S

YC, LR

Side S

YC, LR

IN1

IN4

IN1

IN4

IN3

IN4

Comp_1

Comp_2

RGB(Phone)

BCM3550

SD_Y

SD_C

ANT/ Cable

TV IN

CVBS from TUNER

FMS6400

Y/CVBS

OUT1/Y

OUT1/C

M_CVBS/Y

M_CVBS

LPF for
CVBS

SD_CVBS

TUNER

IF_P

IF_N

IF_P from TUNER for DTV

IF_N from TUNER for DTV

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Video signal path for Component

Comp1_Y 8(3A)

Comp1_Pb 11(2A)

Comp1_Pr 16(1A)

Comp2_Y 9(3B)

Comp2_Pb 14(2B)

Comp2_Pr 1(1B)

2 12 7

SW1 SW2 SW3

6(Out3) Comp_Y

5(Out2)

Comp_Pb

3(Out1) Comp_Pr

8(3A)

11(2A)

16(1A)

RGB_G 9(3B)

RGB_B 14(2B)

RGB_R 1(1B)

2 12 7

SW1 SW2 SW3

6(Out3)

Y/G to LPF

5(Out2)

Pb/B to LPF

3(Out1) Pr/R to LPF

IC5001

IC5002

Y/G

3(YIN)

Pb/B 5(PBIN)

Pr/R 7(PBIN)

1(EXT_SYNC)

18(SYNC_IN)

16 Comp_Y

15 Comp_Pb

14 Comp_Pr

44(GIN+)
43(SOGIN)

41(BIN+)

46(RIN+)

IC704

IC4009

RGB_G

H Sync

7404

V Sync

RGB_B
RGB_R

BCM3550

GPIO

GPIO for sync selection

HD-DVI

Data [24]

H sync/V sync

/DE/Clock

H,V Sync/Clock

RGB_HS

GPIO for sync selection

RGB_HS

RGB_VS

RGB_HS

RGB_VS

GPIO

GPIO for Component 1

GPIO

GPIO for Component 2

GPIO for Component 1

IC1001

FMS6407

MST3361

MM1731

MM1732

DATA_OUT
H/V/DE/CLK

LPF_CTRL0

LPF_CTRL1

LPF_CTRL0

LPF_CTRL1

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Video signal path for HDMI

IC704

BCM3550

GPIO

GPIO for Interrupt

HD-DVI

Data [0: 23]

H sync/V sync

/DE/Clock

H,V Sync/Clock

GPIO

GPIO for Power detection 1

GPIO

GPIO for Hot plug detection 1

IC1001

MST3361

TMDS1 RX0+/-

TMDS1 RX1+/-

TMDS1 RX2+/-
TMDS1 RX3+/-

DDC SDA1

DDC SCL1

EEPROM
For EDID

DDC SDA1

DDC SCL1

TMDS1
INPUT

DDC1
INPUT

TMDS2 RX0+/-

TMDS2 RX1+/-

TMDS2 RX2+/-

TMDS2 RX3+/-

DDC SDA2

DDC SCL2

EEPROM
For EDID

DDC SDA2

DDC SCL2

TMDS2
INPUT

DDC2
INPUT

HDCP SDA

HDCP SCL

EEPROM
For HDCP

NDA

NCL

INT

DATA_OUT

H,V Sync/DE

/Clock

HDMI 1

HDMI 2

GPIO

GPIO for Power detection 2

GPIO

GPIO for Hot plug detection 2

GPIO for Power detection 2

GPIO for Hot plug detection 2

GPIO for Power detection 1

GPIO for Hot plug detection 1

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Audio signal path for all

SIF from TUNER

CXA2069

Side AV

V,LR

Rear AV

V, LR

Rear S

YC, LR

Side S

YC, LR

IN1

IN4

IN1

IN4

IN3

IN4

Comp_1

Comp_2

RGB(Phone)

OUT1/R

OUT1/L

ANT/ Cable

TUNER

AUDIO ADC

(CS5331)

Audio R

I2S_SCK_IN

Audio L

BCM3550

SIF

I2S_LRCH_IN

I2S_LRCK_IN

I2S_SCK_IN

I2S_LRCH_IN

I2S_LRCK_IN

SPDIF_IN_P

SPDIF from MST3361

MNT_Out

AUDIO DAC

(CS4344)

I2S_SCK_OUT

I2S_LRCH_OUT

I2S_LRCK_OUT

I2S_SCK_OUT

I2S_LRCH_OUT

I2S_LRCK_OUT

MNT_Out

Analog L_OUT

Audio

AMP

(TPA3100)

SPDIF Out

SPDIF_OUT_P

AUD_LEFT_P

AUD_LEFT_N

AUD_RIGHT_N

AUD_RIGHT_P

SPK_L_P

SPK_L_N

SPK_R_N

SPK_R_P

Analog R_OUT

MC3307

(OP-AMP)

IF_P from TUNER for DTV

IF_N from TUNER for DTV

IF_P

IF_N

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BCM3550

CXA2069

+5V

4.7k(R5097)

22(R3126)

COMP1_SW

+5V

4.7k

AE1

AC4

22(R3125)

COMP2_SW

0(R3072)

2.7k
(R5128)

HDMI_POWER_1

AD24

0(R3075)

HDMI_POWER_2

AC22

Y23

5(GND)

+9V

100k
(R5027)

AV1_SW

+9V

100k
(R5069)

AV2_SW

6(S2-1)

13(S2-2)

0(R5088)

100(R5079)

J5005

J5004

J5007

P5001

22(R3052)

/RGB-PC

5V_HIGH

9V_HIGH

5V_HIGH

0V_HIGH

+5V

10k

Audio Link system

P7007

P7008

P7004

• RGB-PC 경우, H/W 작업이 필요함.
•

Plug-IN (LOW), Plug-OUT (HIGH)

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Video Input level for RF/AV

* Measurement data for RF/AV amplitude at the point of BCM3550 input pin

700mV

Input

IC spec

Measurement

waveform

700mV

Measurement

data

PAL

NTSC and PAL

System

SCART-CVBS

Input signal

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Video Input level for S-video/Component

* Measurement data for S-video/Component input amplitude at the point of
BCM3550 input pin

500mV~1V

700mV

800mV

700mV

480i@60Hz,576i@50Hz

NTSC and PAL

Component

S-Video

Input

IC spec

Measurement

waveform

Measurement

data

System

Input signal

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Detail Block of BCM3550 which is used in Pacific 2
TDR(Broadcom)

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Main feature of BCM3550

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Main feature of BCM3550

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Whole chip internal block

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Brief diagram for our system

Video
Network
Swith
Front

Lbox

Detect

Lbox

Detect

Video
Networ

k
Swith
Back

NULL

2D HD Scaler

MAD

CRC

Capture 0

Capture 1

Capture 2

TNT/

PEP

TNT/

PEP

VBP

NULL

Feed Back

Compositor

MPEG Feeder

Video Feeder

ITU 656

HD-DVI

VDEC 0

Feed Back

DNR

2D SD Scaler

VEC

UpScaler

Graphic

VDEC 1

HDMI-RX

Digital
Input

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ADC/IF demodulator

Inband AFE

12Bit A/D

Inband AFE

12Bit A/D

AGC Control

ATSC VSB

Advanced

Receiver

ATSC VSB

Advanced

Receiver

ATSC

FEC

ATSC

FEC

Inband
Output

Interface

Inband
Output

Interface

OOB QPSK

Receiver

OOB QPSK

Receiver

OOB

Output

Interface

OOB

Output

Interface

DVS-167 FEC
DVS-178 FEC

OOB AFE

6Bit A/D

OOB AFE

6Bit A/D

AGC Control

QAM VSB
Advanced

Receiver

QAM VSB
Advanced

Receiver

ITU-T J.83

Annex

A/B/C FEC

ITU-T J.83

Annex

A/B/C FEC

NTSC IF

Demodulator

NTSC IF

Demodulator

Input Band

Input

Band

Input

Band

MUX

Input Band

BCM3560 DATA

Transport Module

BCM3560 DATA

Transport Module

Memory Controller

Video Output

Audio Output

HSX1 Serial

MPEG-2 Transport

Demux w/DVB,DES

MPEG-2 Transport

Demux w/DVB,DES

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Before Video network

Video
Network
Swith
Front

AFE

Front

End

Front

End

Y/C

Separation

Y/C

Separation

Chroma

Demo

Chroma

Demo

Back

End

Back

End

VDEC Block

BVB

Interface

BVB

Interface

Memory Interface (SCB)

SCB
BUS

Croma

Conversion

Croma

Conversion

Horizon

Pan Scan

Horizon

Pan Scan

Frame
Buffer

De-Inter

MPEG Feeder

BVB

Interface

BVB

Interface

SCB

DATA

Buffer

SCB

DATA

Buffer

Pixel

Cropping

Pixel

Cropping

Color

Expansion

Color

Expansion

Color

Key

Color

Key

Alpha

Pre-

Multipl

Alpha

Pre-

Multipl

Graphic Feeder Block

Horizon

Scaler

Horizon

Scaler

Gamma

Correction

Gamma

Correction

Color

Convertor

Color

Convertor

BVB

Interface

BVB

Interface

Coef Table

CLUT

???

RGB

Converter

RGB

Converter

Input

Timing

Adjust

Input

Timing

Adjust

DVI-Secondary

BVB

Interface

BVB

Interface

???

RGB

Converter

RGB

Converter

Input

Timing

Adjust

Input

Timing

Adjust

DVI-Primary

BVB

Interface

BVB

Interface

HDMI

Receive

Decode

HDMI

Receive

Decode

HDCP

Decrypt

HDCP

Decrypt

HDMI Block

HDMI

TMDS

Pins

HDMI

TMDS

Pins

Lbox

Detect

Lbox

Detect

TAB

2D - Scaler

TAB

2D - Scaler

MAD-IT

NULL

Feed Back

SCB
BUS

Croma

Conversion

Croma

Conversion

Horizon

Pan Scan

Horizon

Pan Scan

Frame
Buffer

De-Inter

Video Feeder

BVB

Interface

BVB

Interface

ANALOG

Pins

ANALOG

Pins

HDMI

Pins

HDMI

Pins

DVI

Pins

DVI

Pins

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Scaler and MAD

Video
Network
Swith
Front

Lbox

Detect

Lbox

Detect

MUX

BVB

Receiver

BVB

Receiver

Vertical

Scaler

Vertical

Scaler

TAB

MUX

Hoarizonal

Scaler

Hoarizonal

Scaler

TAB 2D-Scaler

MUX

BVB

Receiver

BVB

Receiver

Vertical

Scaler

Vertical

Scaler

MUX

Hoarizonal

Scaler

Hoarizonal

Scaler

2D-Scaler

BVB

Receiver

BVB

Receiver

Pixel

Distribution

Block

Pixel

Distribution

Block

Pixel

Processing

Block

Pixel

Processing

Block

SCB

Output

SCB

Output

BVB

Interface

BVB

Interface

Field Control Block

MAD

Video
Network
Swith
Back

CRC

Capture 0

Capture 1

Capture 2

NULL

Feed Back

VBP

Compositor

PEP

Graphic Feeder Block

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PEP and Compositor

Video
Network
Swith
Front

CRC

Video
Network
Swith
Front

BVB

Receiver

BVB

Receiver

Packing&

RDMA Trig

Packing&

RDMA Trig

Burst

FIFO

Burst

FIFO

Capture Block

DMA

SCB
BUS

NULL

Feed Back

VBP

(Video Bypass)

VBP

(Video Bypass)

Graphic Feeder Block

BVB

Reciever

BVB

Reciever

422 TO 444

Conversion

422 TO 444

Conversion

Video Intra-Surface (Without PEP)

Color Bright

Adjust

(Matrix)

Color Bright

Adjust

(Matrix)

Luma

Keying

Luma

Keying

Cropping

BVB

Interface

BVB

Interface

BVB

Reciever

BVB

Reciever

CAB

422 TO 444

Conversion

422 TO 444

Conversion

LAB

Color

CLIP

Color

CLIP

Video Intra-Surface (With PEP)

Luma

Keying

Luma

Keying

BVB

Interface

BVB

Interface

Color Bright

Adjust

(Matrix)

Color Bright

Adjust

(Matrix)

Cropping

BackGround Color

Y/Cb/Cr Register

BVB

Reciever

BVB

Reciever

Graphics Intra-Surface

Cropping

BVB

Interface

BVB

Interface

Screen

Compositer

Screen

Compositer

Surfaces

MUX

Surfaces

MUX

Blend0

Blend1

Blend2

Fore

Ground

Fore

Ground

Fore

Ground

Back

Ground

Back

Ground

Back

Ground

BVB

Interface

BVB

Interface

PEP COMPOSITOR

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Back end(Digital and analog)

VBP

(Video Bypass)

VBP

(Video Bypass)

Video

Compositor

Video

Compositor

Mux

CSC

(Matrix)

CSC

(Matrix)

Digital

Video

Formatter

Digital

Video

Formatter

VIDEO_ENC_PRIM_CONTROL.SELECT

656

CSC

(Matrix)

CSC

(Matrix)

Digital

Video

Formatter

Digital

Video

Formatter

DVI

Interface

DVI

Interface

Mux

Cross

Bar

Cross

Bar

CSC

(Matrix)

CSC

(Matrix)

Video

Formatter

Video

Formatter

SUB-Carrier

Modulator

SUB-Carrier

Modulator

Input

Timing

Input

Timing

VIDEO_ENC_BYPASS_CONTROL.SELECT

Digital

Timing

RAM

Digital

Timing

RAM

Digital

Timing

Generator

Digital

Timing

Generator

Digital

Timing

Generator

Digital

Timing

Generator

MISC_ITU656_IN_MUX.SELECT

MISC_DVI_IN_MUX.SELECT

656

DVI

DAC3

DAC2

DAC1

DAC0

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Explanation

Mpeg Feeder And Video Feeder (MFD and VFD)

-Mpeg Feeder is a data path of VSB or QAM decoded signal. These signals go to the Minititan of BCM3550.
-In the minititan block do processing the MPEG and video.

VDEC ( Video Display Decoder)

-This block has several detailed block. It can handle the input composite signal for example, Y/C separation,

color decoding, auto gain control, etc.

VDEC Detail Block

Front

End

Front

End

AFE

Y/C

Separation

Y/C

Separation

Chroma

Demo

Chroma

Demo

Back

End

Back

End

BVB

Interface

BVB

Interface

Digital Input

-Digital input can handle digital video signal. In our system through this path, component,RGB PC, HDMI/DVI signals

are decoded. So this path is very important block in our system.

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Trouble Shooting Guide for LG Service Man

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TV/CATV doesn’t display

Check TU4001 Pin9(Video output)

Can you see the normal signal?

Check the input(Pin63) of AV switch(IC5003).

Can you see the normal waveform?

Check the output(Pin56) of AV switch(IC5003).

Can you see the normal waveform?

Check the input(Pin1) of LPF(IC4006).

Can you see the normal waveform?

YES

Could you measure voltage of TU4001 & IIC

lines?

Are they all normal?

You should check power line

& IIC lines.

YES

You should replace TUNER.

After checking the Power of AV switch you should

decide to replace AV switch or not.

After checking the Power of AV switch you should

decide to replace AV switch or not.

After checking the Power of LPF you should decide to

replace LPF or not.

YES

Check the output(Pin8) of LPF(IC4006).

Can you see the normal waveform?

After checking the Power of LPF you should decide to

replace LPF or not.

Check the input(PinH26) of BCM3550(IC4006).

Measure waveform at C1010 because it’s more

easy to check.

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 BCM3550 or not.

YEX

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Video doesn’t display

Check J5007 Pin3C

Can you see the normal waveform?

J5007 may have problem. Replace this Jack.

YES

Check the input(Pin1 or Pin8) of AV

switch(IC5003). Pin1 is for video1,Pin8 is for

video 2.

Can you see the normal waveform?

After checking the Power of AV switch you should

decide to replace AV switch or not.

YES

Check the output(Pin56) of AV switch(IC5003).

Can you see the normal waveform?

After checking the Power of AV switch you should

decide to replace AV switch or not.

YES

Check the input(Pin1) of LPF(IC4006).

Can you see the normal waveform?

After checking the Power of LPF you should decide to

replace LPF or not.

YES

Check the output(Pin8) of LPF(IC4006).

Can you see the normal waveform?

After checking the Power of LPF you should decide to

replace LPF or not.

Check the input(PinH26) of BCM3550(IC4006).

Measure waveform at C1010 because it’s more

easy to check.

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 BCM3550 or not.

YEX

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Component doesn’t display

Check J5004,J5005.

Can you see the normal waveform?

Check the input of Component

switch(IC5001,IC5002).

Can you see the normal waveform?

J5004,J5005 may have problem. Replace this Jack.

YES

After checking the input TR of component, you should

decide to replace component switch or not.

Check the output of Component

switch(IC5001,IC5002).

Can you see the normal waveform?

YES

After checking the Power of component switch you

should decide to replace component switch or not.

YES

Check the input of MST3361(IC7004

Pin41,44,46).

Can you see the normal waveform?

After checking the Power of MST3361 you should

decide to replace MST3361 or not.

YES

Check the output of MST3361(IC7004 ).

Can you see the normal waveform?

After checking the Power of MST3361 you should

decide to replace MST3361 or not.

Check the input and output of

BCM3550(IC4006). Especially you should check

The H,V sync and clock.

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 BCM3550 or not.

YEX

29/31

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Blue Ocean P³ Innovation

RGB_PC doesn’t display

Check input connect P7004.

Can you see the normal waveform?

P7004 may have problem. Replace this Jack.

YES

Check the input of Component switch(IC5002).

Can you see the normal waveform?

After checking the input TR of RGBHV, you should

decide to replace these components or not.

YES

After checking the Power of RGB switch you should

decide to replace component switch or not.

Check the output of Component switch(IC5002).

Can you see the normal waveform?

YES

Check the input of MST3361(IC7004

Pin41,44,46).

Can you see the normal waveform?

After checking the Power of MST3361 you should

decide to replace MST3361 or not.

YES

Check the output of MST3361(IC7004 ).

Can you see the normal waveform?

After checking the Power of MST3361 you should

decide to replace MST3361 or not.

Check the input and output of

BCM3550(IC4006). Especially you should check

The H,V sync and clock.

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 BCM3550 or not.

YEX

30/31

Great Company Great People

Blue Ocean P³ Innovation

HDMI doesn’t display

Check input connect P7007.

Can you see the normal waveform?

Check DDC communication lines(IC7013 Pin5,6)

Check the input of MST3361(IC7004)

This signal is TMDS.

Can you see the normal waveform?

P7007 may have problem. Replace this Jack.

YES

After checking the Power of this chip, you should

decide to replace this or not.

YES

Check the output of MST3361(IC7004 ).

Can you see the normal waveform?

YES

Check the input and output of

BCM3550(IC4006). Especially you should check

The H,V sync and clock.

Can you see the normal waveform?

YES

After checking the trace of TMDS lines and power of

MST3361, you should decide to replace MST3361 or not.

YEX

This board has big problem because Main

chip(BCM3550) have some troubles.

After checking thoroughly all path once again, You

should decide to replace BCM3550 or not.

After checking the Power of MST3361 you should

decide to replace MST3361 or not.

Check HDCP communication lines(IC7005 Pin5,6)

After checking the Power of this chip, you should

decide to replace this or not.

31/31

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