Panasonic 2007 LCDTV Service Guide

8/9/2019 Panasonic 2007 LCDTV Service Guide

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Panasonic 2007Panasonic 2007

L.C.D.L.C.D. models TV service guidemodels TV service guide


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2

Todays seminars contents are1. Review and Chassis Structure

2. Signal Circuit3. Trouble Shooting4. Power Supply circuit

5. Protection circuit6. Service information


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1.Review and Chassis Structure


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4

Cone

Material-----Bamboofibre

-

-

Y(HDAVI Control 1)

1

-

Bottom Speaker

Y

Y

Y

-

IPS

32/26

LXD/LED7

Series

-

-

Y (HDAVI Control 1)

2

-

Bottom Speaker

-

-

-

-

VA

32/26

LM70 Series

32/2632/26/2032/2632Size

SRSTruSurroun

XT ---Y

-YYYPC Input

---Y (HD-JPEG)SD Card Slo t

Y(HDAVI Control 1)Y (HDAVI Control 2)Y (HDAVI Control 2)Y (HDAVI Control 2)VIERA Link

1223HDMI

Bottom SpeakerBottom SpeakerBottom SpeakerAdvanced Smart

Sound Speaker (Side)Speaker

-YYY

Sub-Pixel

Controller

-YYY

Advanced 3D

Colour

Management

-YYYIntelligent SceneController

--YYMotion Picture Pro

VAIPSIPSIPSPanel

LE7 SeriesLMD70 SeriesLXD/LX70

Series

LXD/LX700

Series

Picture

Sound

N

etworking

2007 LCD Feature Comparison Review


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5

2006 2007

2007 LCD Line-up

TX-26LXD70TX-26LXD70

TX-32LMD70TX-32LMD70

TX-26LMD70TX-26LMD70

H i g h En d M o d e l H i g h En d M o d e l

St e p U p M o d e l St e p U p M o d e l



TX-32LXD7TX-32LXD7

S-3

S-2

L ea d e r M o d e lL ea d e r M o d e l






TX-32LXD6TX-32LXD6

TX-26LXD6TX-26LXD6TX-26LXD7TX-26LXD7

S-3

S-3

S-3

S-3

S-2


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2006 2007

2007 LCD Line-up


TX-23LX60FTX-23LX60F



TX-32LX6FTX-32LX6F

TX-26LX6FTX-26LX6F



S-5

S-5TX-32LXD700FTX-32LXD700F

TX-32LXD70FTX-32LXD70F




TX-32LMD70FTX-32LMD70F

TX-26LMD70FTX-26LMD70F

TX-32LED7FTX-32LED7F

TX-26LED7FTX-26LED7F




TX-32LM70FTX-32LM70F

TX-26LM70FTX-26LM70F

TX-32LE7FTX-32LE7F

TX-26LE7FTX-26LE7F

TX-32LE7F/STX-32LE7F/S

TX-26LE7F/STX-26LE7F/S

TX-20LA70FTX-20LA70F

S-2

S-2

S-2

S-2

S-3

S-3

S-3

S-3

S-5

S-2S-2

S-2

S-2

S-3

S-3

S-3

S-3


Le a d e r M o d e l Le a d e r M o d e l

IDTV Model

4 : 3 M o d e l 4 : 3 M o d e l


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2006 2007

2007 LCD Line-up


TX-23LX60PTX-23LX60P



TX-32LX6PTX-32LX6P

TX-26LX6PTX-26LX6P



S-5TX-32LX700PTX-32LX700P



TX-32LM70PTX-32LM70P

TX-26LM70PTX-26LM70P

TX-32LE7PTX-32LE7P

TX-26LE7PTX-26LE7P

TX-20LA70PTX-20LA70P

S-2

S-2

S-2

S-2

S-3

S-3

S-5

Le a d e r M o d e l Le a d e r M o d e l

TX-20LA7PTX-20LA7P S-?4 : 3 M o d e l 4 : 3 M o d e l



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New LCD V-REAL Panel

IPS Alpha LCD Panel

New LCD V-REAL Panel

IPS Alpha LCD Panel

IPS- LCD Panel Suitable for Viewing in Living RoomsIPS- LCD Panel Suitable for Viewing in Living Rooms

PS

178

Wide viewing angle

Virtually no change in colour Picture appears whitish

The IPS Alpha LCD panel offers a

wider viewing angle than an ordinaryVA-system LCD so colours in the

displayed picture appear beautiful

even when viewed from an angle.

The LX700's IPS Alpha LCD panel

provides a viewing angle of 178

degrees.

PS onventional

Faster speed by LCD substances

Better v iewer angle by LCD structure

Better TM by clear and thin electrode

Review


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View Angle

Response Speed

LCD Operation in GeneralLCD Operation in General

Operation

AppendixAppendix


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New LCD V-REAL Driver 1

Motion Picture ProNew LCD V-REAL Driver 1

Motion Picture Pro

Motion Picture Pro for a 50% Reduction in Afterimages (Holding Time)!Motion Picture Pro for a 50% Reduction in Afterimages (Holding Time)!

New interpolation frames are created based on two

adjacent frames and inserted between them.

Frame CreationFrame Creation

Conventional LCD TV

50 frames/sec 20 msec (holding time)

Interpolation images createdbetween frames based onmotion vector detection

technology

100 frames/sec

10 msec(holding time)

Smootherexpressionof motion

NewTec

hnology

Frame Creation

100 frames / 1 sec

Conventional system

50 frames / 1 sec

Dramatic Reduction of

Afterimages to Achieve

Clear Motion Images!

Image with a

conventional

system

Motion

Picture Pro

FOR PAL Review


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New LCD V-REAL Driver 2

Intelligent Scene ControllerNew LCD V-REAL Driver 2

Intelligent Scene Controller

Blacker Blacks! No White Cast in Dark Scenes and Sharper, Crisper Pictures!Blacker Blacks! No White Cast in Dark Scenes and Sharper, Crisper Pictures!

White cast over blacks

Scene-adaptive

backligh

t control

Scene-adaptive

contrast

gamma

correction

Light intensity of thebacklight remains

consistent regardless

of scenes.

Black

White

Ordinary

LCD TV

Backlight

White

Black

's Advantages

Reduction of light intensity

0.14 times max.

Bright scene Dark scene

Techno

logy(1)

Tighter blacks!

Even the slightest dif ferences in

blackness are expressed clearly.

More detailed expression

Increase of gradationsteps for bright areas

Increased gradationsteps for dark areas

Backlight turned down in

intensity for dark scenes

Control of gradation according

to types of sceneTechno

logy(2)

Consistent light intensity

Max. 4xSteps of Gradation

Max. 4xSteps of Gradation

Review


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VIERA LinkVIERA Link

DIGAVIERA

Receiver

* Depending on the cable used, this function may not be

possible.

Panasonic HDMI cables are highly recommended.

Easy Control of All Operations by using Only TV Remote Control !Easy Control of All Operations by using Only TV Remote Control !

Now you can enjoy the beautiful sounds and pictures of high-quality AV equipment without all the messy, unsightly cables.

With HDMI, a single cable* carries the video, audio and control

signals between two digital components. By using VIERA Link

(= HDAVI-Control) compatible components, you can turn on the

power for your entire home theater with a single remote control

button, and begin playback immediately. Operating your DIGArecorder is easier and smarter too. You can use the same

remote controller you use with your home theatre. When you

select Play on the DIGA recorder, VIERA's video input

automatically switches itself for DIGA playback.

Achieve the Seamless Operation!

Review


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SD Card Slot (For Displaying Photos and Moving PictureTaken by a Digital Stil l Camera or HD Video Camera)SD Card Slot (For Displaying Photos and Moving PictureTaken by a Digital Stil l Camera or HD Video Camera)

Viewing High-resolution Photos and AVCHD-standard Motion Images Shotwith a Digital Still Camera or HD Video Camera on a Large Screen!Viewing High-resolution Photos and AVCHD-standard Motion Images Shotwith a Digital Still Camera or HD Video Camera on a Large Screen!

Shooting Viewing

LUMIX's* HDTV mode

displays full-screen photos

and moving picture on the

wide-screen TV.

LUMIX's* HDTV mode

displays full-screen photos

and moving picture on the

wide-screen TV.

Shooting with LUMIX

or HD Video Camera

[Photos and Moving

Picture]

Insert the SD Memory Card

into VIERA and view the

photos and moving picture

on the large screen.

Take out the SD

Memory Card.

Insert the SD Memory Card

directly into VIERA.

Display photos on the

large screen.

New VIERANew VIERAVertical position detection function

Conventional

SDHC Compatible!

SD Card Slot : PZ/PY700 series, PX/PV700 Series and LXD/LX700 Series only.

Beautiful, AVCHD-standard

motion images** can be

viewed on a large screen.

Beautiful, AVCHD-standard

motion images** can be

viewed on a large screen.

AVCHD is a standard developed jointly by Sony and Panasonicfor HD digital video cameras. Using highly efficient codec

technologies, it records 1080i high-definition signals onto mediasuch as 8-cm DVD discs and SD/SDHC Memory Cards. AVCHD

allows an HD video camera to make long-time recordings ofhigh-density video information onto a DVD disc or SD/SDHC

Memory Card.

* Compatible with the DMC-FX7, FX2, FZ2, FZ3, FZ25,LC70, LC1, LZ2, and LS1.** Compatible withPZ/PY700 Series only.

Review


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Differences from LXD600/LX600:1. The function of XV board is combined to DG board.

2. Peaks Lite on XV board and GC5 and GC3FS on DG board are changed

to Peaks Lite2 on DG board.

3. HQ1L on DG board is newly introduced.

32LXD600/LX60032LXD600/LX600

LVDS TX

DG

Peaks Lite2

HDMI x2(CEC)

32LXD700/LX70032LXD700/LX700

DG

GC3FS

GC5

HDMI x2

(CEC)

XV

Peaks Lite

DVB TunerDVB Tuner

HQ1L

LXD600 only LXD700 only

LVDS TX

11--(3)(3) Chassis structureChassis structure Function


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Differences from LX60/LXD60:1. The function of A board is separated to DG board and H board.

2. For LXD60 series, XV board is combined to DG board.

3. For LXD60/LX60 series, VCTP is changed to Peaks Lite2 and

AD Converter as shown in yellow color.

4. HQ1L is newly introduced as shown in pink color.

LVDS TX

H DG

Peaks Lite2

VIDEO

SWITCH

AUDIOPROCESSOR

HDMI x2

(CEC)

A

VCTP

HDMI x2(CEC)

XV

DVB Tuner

LXD60 only

DVB Tuner

LXD70 only

HQ1L

AD ConverterAUDIOSWITCH

VIDEOSWITCH

RGBSWITCH

AudioProcessor

AudioSWITCH

LVDS TX

11--(4)(4) Chassis structureChassis structure

32LXD60/LX6032LXD60/LX60 32LXD70/LX7032LXD70/LX70

Function


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* 2 Control Panel Assy should be exchanged for service.

YesYesControl Button None serviceable (*2)Control Panel

Assy

YesYes

V

YesYesMain SwitchK

YesYesAV Connector, Tuner, AV SwitchH

Yes (*1)Yes (*1)Peaks Lite2, HDMI, IDTV Processor (*1)DG

YesYesPower Supply RegulatorAP

YesYesMain Input, Power SupplyP

32/26LXD70/LX7032LXD700/LX700FunctionBoard

GS

GH

SD Card s lot

HDMI (Front)

Yes

Yes -

-

* 1 LXD700 and LXD70 have the Digital Tuner on DG board.

LED IR, Remote Receiver Yes Yes

G Side AV Terminal

11--(5)(5) Chassis structureChassis structure


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Todays seminars contents are1. Review and Chassis Structure




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2.Signal circuit


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2.Signal Circuit

1) Signal Circuit Over view

2) Video Signal Circuit

3) Audio Signal Circuit


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Input

SourceInput

Source

Signal

ProcessorSignal

Processor

Panel

DrivePanel

Drive

Speaker

TV tuner

AV terminalSD card

PC input

PictureVideoVideo

SignalSignal

VideoVideo

SignalSignal

AudioAudio

SignalSignal

Sound

Brightness

Contrast

Sharpness

etc

Bass

Treble

Balance

Volume

AudioAudio

SignalSignal

Video

Audio

22--11..(1) Signal circuit Over view(1) Signal circuit Over view Review


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Signal Processor

DG: Digital Signal

Processor

/ HDMI Interface

GS: SD card

GH: HDMI

DG

GS

Panel DriveInput Source

H : AV Terminal / AV Switch /

Audio swi tch audio processor

K : Key Switch

V : Remote Receiver / Power LED

SPEAKER

Analogue

Tuner

AV input

Comp.

PC

DigitalTuner

K V

Only LXD

22--11..(2) Signal circuit Over view(2) Signal circuit Over view

LCD panel

Specification is defined

by each panel supplier

H

GH

HDMI


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LCD

Panel

Analog

Digital

VIDEOSWITCH IC4510

STBMCU

IC1100

LVDSTX

IC4207

HQ1L

IC8001

IC4503

IC4200

LVDS

DG

HDMI2

HDMI1

G AV3

AV1

AV2 Peaks Li te2

H

TUNER

PC

HDMI SW

DIG.TUNER DEMODULATOR

IC8301

IC3001

HDMI-RX

TU8301

TU3200

GS

GHHDMI3

LXD700/LX700

Only

LXD700/LXD70

Only

A/DConverter

and

SCALING/

IP CONVERTER/

PICTURE CORRECT/

OSD

YPBPRSD

22--2.2.((11)) VideoVideo SignalSignal FlowFlow


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LCD

Panel

Analog

Digital

VIDEOSWITCH IC4510

STBMCU

IC1100

LVDSTX

IC4207

HQ1L

IC8001

IC4503

IC4200

LVDS

DG

HDMI2

HDMI1

G AV3

AV1

AV2 Peaks Li te2

H

TUNER

PC

HDMI SW


IC8301

IC3001

HDMI-RX

TU8301

TU3200

GS

GHHDMI3

LXD700/LX700

Only

LXD700/LXD70

Only

A/DConverter

and

SCALING/

IP CONVERTER/

PICTURE CORRECT/

OSD

YPBPRSD

22--2.2.((22)) VideoVideo SignalSignal FlowFlowAnalogue TunerAnalogue Tuner


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LCD

Panel

Analog

Digital

VIDEOSWITCH IC4510

STBMCU

IC1100

LVDSTX

IC4207

HQ1L

IC8001

IC4503

IC4200

LVDS

DG

HDMI2

HDMI1

G AV3

AV1

AV2 Peaks Li te2

H

TUNER

PC

HDMI SW


IC8301

IC3001

HDMI-RX

TU8301

TU3200

GS

GHHDMI3

LXD700/LX700

Only

LXD700/LXD70

Only

A/DConverter

and

SCALING/

IP CONVERTER/

PICTURE CORRECT/

OSD

YPBPRSD

22--2.2.((33)) VideoVideo SignalSignal FlowFlowAnalogueAnalogue InputInput


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LCD

Panel

Analog

Digital

VIDEOSWITCH IC4510

STBMCU

IC1100

LVDSTX

IC4207

HQ1L

IC8001

IC4503

IC4200

LVDS

DG

HDMI2

HDMI1

G AV3

AV1

AV2 Peaks Li te2

H

TUNER

PC

HDMI SW


IC8301

IC3001

HDMI-RX

TU8301

TU3200

GS

GHHDMI3

LXD700/LX700

Only

LXD700/LXD70

Only

A/DConverter

and

SCALING/

IP CONVERTER/

PICTURE CORRECT/

OSD

YPBPRSD

22--2.2.((44)) VideoVideo SignalSignal FlowFlow Digital TunerDigital Tuner

( ) S


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LCD

Panel

Analog

Digital

VIDEOSWITCH IC4510

STBMCU

IC1100

LVDSTX

IC4207

HQ1L

IC8001

IC4503

IC4200

LVDS

DG

HDMI2

HDMI1

G AV3

AV1

AV2 Peaks Li te2

H

TUNER

PC

HDMI SW


IC8301

IC3001

HDMI-RX

TU8301

TU3200

GS

GHHDMI3

LXD700/LX700

Only

LXD700/LXD70

Only

A/DConverter

and

SCALING/

IP CONVERTER/

PICTURE CORRECT/

OSD

YPBPRSD

22--2.2.((55)) VideoVideo SignalSignal FlowFlow HDMI InputHDMI Input

22 22 ((66)) Vid SSi l Fl S CSD C d


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LCD

Panel

Analog

Digital

VIDEOSWITCH IC4510

STBMCU

IC1100

LVDSTX

IC4207

HQ1L

IC8001

IC4503

IC4200

LVDS

DG

HDMI2

HDMI1

G AV3

AV1

AV2 Peaks Li te2

H

TUNER

PC

HDMI SW


IC8301

IC3001

HDMI-RX

TU8301

TU3200

GS

GHHDMI3

LXD700/LX700

Only

LXD700/LXD70

Only

A/DConverter

and

SCALING/

IP CONVERTER/

PICTURE CORRECT/

OSD

YPBPRSD

22--2.2.((66)) VideoVideo SignalSignal FlowFlow SD CardSD Card

22 33 ((11)) A diA di Si lSi l FlFl A l TA l T


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LXD700/

LX700 Only

LCD

Panel

AnalogDigital

AUDIOSWITCH

STBMCU

IC1100

LVDS TX

IC4207

HQ1L

IC8001

IC4503

IC4200

DG

HDMI2

HDMI1

G AV3

AUDIO IN

AV1

AV2PeaksLite2

H

TUNER

HDMI SW

DIG.TUNER DEMODULATOR IC8301

AUDIO

PROCESSOR

HP

HP AMP

AUDIO

DAC

IC2002

IC2106

IC3101

DIGITAL AUDIO

PROCESS

IC2012

IC4510

AUDIO

AMP

IC2011AUDIO

OUTAUDIOAMP

TU8301

TU3200

AUDIO

AMP

LXD700/

LXD70 Only

GS

GHHDMI3

HDMI-RX

ConverterA/D

and

22--3.3.((11))AudioAudio SignalSignal FlowFlowAnalogue TunerAnalogue Tuner

IC2302 IC2301

22 33 ((22)) A diA di Si lSi l FlFl A l I tA l I t


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LXD700/

LX700 Only

LCD

Panel

AnalogDigital

AUDIOSWITCH

STBMCU

IC1100

LVDS TX

IC4207

HQ1L

IC8001

IC4503

IC4200

DG

HDMI2

HDMI1

G AV3

AUDIO IN

AV1

AV2PeaksLite2

H

TUNER

HDMI SW


AUDIO

PROCESSOR

HP

HP AMP

AUDIO

DAC

IC2002

IC2106

IC3101

DIGITAL AUDIO

PROCESS

IC2012

IC4510

AUDIO

AMP

IC2011AUDIO

OUTAUDIOAMP

TU8301

TU3200

AUDIO

AMP

LXD700/

LXD70 Only

GS

GHHDMI3

HDMI-RX

ConverterA/D

and

22--3.3.((22))AudioAudio SignalSignal FlowFlowAnalogue InputAnalogue Input

IC2302 IC2301

22 33 ((33)) A diA di Si lSi l FlFl Di it l TDi it l T


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LXD700/

LX700 Only

LCD

Panel

AnalogDigital

AUDIOSWITCH

STBMCU

IC1100

LVDS TX

IC4207

HQ1L

IC8001

IC4503

IC4200

DG

HDMI2

HDMI1

G AV3

AUDIO IN

AV1

AV2PeaksLite2

H

TUNER

HDMI SW


AUDIO

PROCESSOR

HP

HP AMP

AUDIO

DAC

IC2002

IC2106

IC3101

DIGITAL AUDIO

PROCESS

IC2012

IC4510

AUDIO

AMP

IC2011AUDIO

OUTAUDIOAMP

TU8301

TU3200

AUDIO

AMP

LXD700/

LXD70 Only

GS

GHHDMI3

HDMI-RX

ConverterA/D

and

22--3.3.((33))AudioAudio SignalSignal FlowFlow Digital TunerDigital Tuner

IC2302 IC2301

22 33 ((44)) A dioAudio SignalSignal FloFlow HDMIHDMI


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LXD700/

LX700 Only

LCD

Panel

AnalogDigital

AUDIOSWITCH

STBMCU

IC1100

LVDS TX

IC4207

HQ1L

IC8001

IC4503

IC4200

DG

HDMI2

HDMI1

G AV3

AUDIO IN

AV1

AV2PeaksLite2

H

TUNER

HDMI SW


AUDIO

PROCESSOR

HP

HP AMP

AUDIO

DAC

IC2002

IC2106

IC2302

IC3101

DIGITAL AUDIO

PROCESS

IC2012

IC4510

AUDIO

AMP

IC2011AUDIO

OUTAUDIOAMP

TU8301

TU3200

AUDIO

AMP

IC2301

LXD700/

LXD70 Only

GS

GHHDMI3

HDMI-RX

ConverterA/D

and

22--3.3.((44))AudioAudio SignalSignal FlowFlow HDMIHDMI


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Todays seminars contents are

1. Review and Chassis Structure




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3.Troubleshooting

3 Troubleshooting


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3.Troubleshooting

1

Some part of screen

2All over screen

3No Picture

4Actual market trouble

3 Troubleshooting for Picture Trouble


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Where is

abnormal picture

displayed ?

Trouble

Upper or LowerLower

Right

Left

Left or Right

Al l over screen

Panel

DG Board

(1)Some part of screen

(2)All over screen

(3)No picture

3.Troubleshooting for Picture Trouble

Upper

Panel

Panel

Panel

Panel

Non-uniformity color

Many vertical line Abnormal color OSD trouble

Vertical or Horizontal linePanel

3-1 (1) Picture trouble for some part of screen


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Signal Processor

DG: Digital Signal

Processor

/ HDMI Interface

GS : SD card

GH : HDMI Front

D : Format Converter

/ Plasma AI Processor

/ Sub-Field Processor

DG

HDMI

GS

PanelInput Source

H : AV Terminal / AV Switch /

K : Key Switch

V : Remote Receiver / Power LED

SPEAKER

H

Analogue

Tuner

AV input

Comp.

PC

DigitalTuner

K

3-1.(1) Picture trouble for some part of screen

REVIEW

GH

V

LCD Panel



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Enlarged view of LCD


Liquid Crystal

Back Light

RGB Filter



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3 1.(3) Picture trouble for some part of screen



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(Front view)

DG

1

2H

Upper half or Lower half trouble

1 LCD panel

No Picture, Picture noise, Full Horizontal line, etc.

Symptom Lower half picture trouble

Result LCD panel defect

All model


LCD panel



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42

(Front view)

DG H

Left half or Right half trouble

1 LCD panel

No Picture, Picture noise, Full Horizontal line, etc.

Symptom Right half picture trouble


All model


LCD panel

12



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43

(Front view)

DG H

Horizontal line

1 LCD panel

Symptom Horizontal line


All model


LCD panel



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44

(Front view)

DG H

Vertical line

1 LCD panel

Symptom Thin and vertical l line


All model

( ) p

LCD panel


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46

(Front view)

DG H

Sub picture NG

1 DG board defect

Symptom Sub picture NG

Result DG board defect

All model

( ) p

LCD panel

3-2.(1) Picture trouble for all over screen


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47

(Front view)

DG H

Non uniformity color

1 LCD panel

Symptom Irregular color


All model

( )

LCD panel


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49

(Front view)

DGH

O.S.D. trouble

1 DG board defect

Symptom OSD troubleResult DG board defect

All model

LCD panel



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50

(Front view)

DGH

Abnormal color

1 DG board defect

Symptom Abnormal colorResult DG board defect

All model

LCD panel

3-3.No picture


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No Picture with normal sound

Symptom No pictureResult DG board defect

H board defect

No

Yes

Only Digital

TV Picture NG

ALL Input Source

Picture NG ?

DG Board

Only HDMI

Input Picture NG

No

Yes

DG Board

LCD Panel or DG boardNo picture but

OSD is displayed ?

H Board

Only AV Terminal

Picture NG

No

Yes

Tuner (H Board)

Analog TV

Picture NG

AV Terminal

Picture OK?H Board

(Front view)

DG H

All

LCD panelDG BoardTuner

T d i


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1. Review and Chassis Structure2. Signal Circuit3. Trouble Shooting4. Power Supply circuit5. Protection circuit6. Service information


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4.Power supply Circuit

4.Power Supply Circuit


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1) Power Circuit Over view

2) Power supply sequence

3) Power Distribution

4-1.(1) Power circuit Overview


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Sound 15V

HQ 3.3V

DTV 9V

STB 5V

AC Plug

Panel 12V

Relay

24V

Main 15V

AP board

Regulator

Inverter



56/109

56

AC Plug in

P

Relay ON

Relay

DG

Standby

Trans

SUB ON

MicomMicom

AP

K

Power SW

STB 5V

H

STB 5V

Regulators

Sound 15VSub 5V

DTV 9V

HQ3.3V

Panel 12V

Panel

Inverter12VLCD

Converter

Main 9V

Panel STB ON

TV main ON

12V

SW

4-1.(3) Power circuit OverviewBl k Di


57/109

57

AC Plug

P

Relay ON

Relay

DG

Standby

Trans

SUB ON

MicomMicom

AP

K

Power SW

STB 5V

Basic Process

H

STB 5V

Sound 15VSub 5V

DTV 9V

HQ3.3V

Panel 12V

Panel

Inverter12VLCD

Converter

Main 9V

Panel STB ON

TV main ON

12V

SWRegulators



58/109

58

AC Plug

P

Relay ON

Relay

DG

Standby

Trans

SUB ON

MicomMicom

AP

K

Power SW

STB 5V

Basic Process

H

STB 5V

Sound 15VSub 5V

DTV 9V

HQ3.3V

Panel 12V

Panel

Inverter12VLCD

Converter

Main 9V

Panel STB ON

TV main ON

12V

SWRegulators


B i P


59/109

59

AC Plug

P

Relay ON

Relay

DG

Standby

Trans

SUB ON

MicomMicom

AP

K

Power SW

STB 5V

Basic Process

H

STB 5V

Sound 15VSub 5V

DTV 9V

HQ3.3V

Panel 12V

Panel

Inverter

Inverter ON

12VLCD

Converter

Main 9V

Panel STB ON

TV main ON

12V

SWRegulators


B i P


60/109

60

AC Plug

P

Relay ON

Relay

DG

Standby

Trans

SUB ON

MicomMicom

AP

K

Power SW

STB 5V

Basic Process

H

STB 5V

Sound 15VSub 5V

DTV 9V

HQ3.3V

Panel 12V

Panel

Inverter

24V

12VLCD

Converter

Main 9V

Panel STB ON

TV main ON

12V

SW

Inverter ON

Regulators


B i P


61/109

61

AC Plug

P

Relay ON

Relay

DG

Standby

Trans

SUB ON

MicomMicom

AP

K

Power SW

STB 5V

Basic Process

H

STB 5V

Sound 15V

Sub 5V

DTV 9V

HQ3.3VPanel 12V

Panel

Inverter12VLCD

Converter

Main 9V

Panel STB ON

TV main ON

12V

SW

24VInverter ON

Regulators


Basic Process


62/109

62

AC Plug

P

Relay ON

Relay

DG

Standby

Trans

SUB ON

MicomMicom

AP

K

Power SW

STB 5V

Basic Process

H

STB 5V

Sound 15VSub 5V

DTV 9V

HQ3.3V

Panel 12V

Panel

Inverter12VLCD

Converter

Main 9V

Panel STB ON

TV main ON

12V

SWRegulators


63/109


P SWBasic Process


64/109

64

g

AC Plug

P

Relay ON

Relay

DG

Standby

Trans

SUB ON

MicomMicom

AP

K

Power SW

STB 5V

Basic Process

H

STB 5V

Sound 15VSub 5V

DTV 9V

HQ3.3V

Panel 12V

Panel

Inverter12VLCD

Converter

Main 9V

Panel STB ON

TV main ON

12V

SWRegulators


Power SWBasic Process


65/109

65

Block DiagramAC Plug

P

Relay ON

Relay

DG

Standby

Trans

SUB ON

MicomMicom

AP

K

Power SW

STB 5V

Basic Process

H

STB 5V

Sound 15VSub 5V

DTV 9V

HQ3.3V

Panel 12V

Panel

Inverter12VLCD

Converter

Main 9V

Panel STB ON

TV main ON

12V

SWRegulators

4-2.(1) Power Supply Sequence32LXD700series


66/109

66

PP

F8015V

g

Power SW

T801

RL802

DG

Panel

AP

Regulators

IC7301

IC7401

IC7601

IC7701

105Panel stand by ON

STB 5V Sense29

TV Main ON 46

IC1100

1 SUB ON

MAIN 5V SENSE

STB 5V SENSE

DTV 9V SENSE

SUB 5V SENSE

27

29

30

34

IC7501



67/109

67

PP

FUSE5V

Power SW

T801

RL802

DG

Panel

AP

Regulators

IC7301

IC7401

IC7601

IC7701


STB 5V Sense29

TV Main ON 46

IC1100

1 SUB ON

MAIN 5V SENSE

STB 5V SENSE

DTV 9V SENSE

SUB 5V SENSE

27

29

30

34

Plug in

IC7501



68/109

68

PP

FUSE5V

Power SW

ON

T801

RL802

DG

Panel

AP

Regulators

IC7301

IC7401

IC7601

IC7701


STB 5V Sense29

TV Main ON 46

IC1100

1 SUB ON

MAIN 5V SENSE

STB 5V SENSE

DTV 9V SENSE

SUB 5V SENSE

27

29

30

34

IC7501


69/109



70/109

70

PP

FUSE5V

T801

RL802

DG

Panel

AP

Regulators

IC7301

IC7401

IC7601

IC7701


STB 5V Sense29

TV Main ON 46

IC1100

1 SUB ON

MAIN 5V SENSE

STB 5V SENSE

DTV 9V SENSE

SUB 5V SENSE

27

29

30

34

Command

to Relay ON

Power supply

From AC plug

Via Relay IC7501



71/109

71

PP

FUSE5V

T801

RL802

DG

Panel

AP

Regulators

IC7301

IC7401

IC7601

IC7701


STB 5V Sense29

TV Main ON 46

IC1100

1 SUB ON

MAIN 5V SENSE

STB 5V SENSE

DTV 9V SENSE

SUB 5V SENSE

27

29

30

34

Command

to Relay ON

Power supply

From AC plug

Via Relay

24V

IC7501



72/109

72

PP

FUSE5V

T801

RL802

DG

Panel

AP

Regulators

IC7301

IC7401

IC7601

IC7701


STB 5V Sense29

TV Main ON 46

IC1100

1 SUB ON

MAIN 5V SENSE

STB 5V SENSE

DTV 9V SENSE

SUB 5V SENSE

27

29

30

34

Sub 5V

DTV 9V

HQ3.3V

24V

IC7501



73/109

73

PP

FUSE5V

T801

RL802

DG

Panel

AP

Regulators

IC7301

IC7401

IC7601

IC7701


STB 5V Sense29

TV Main ON 46

IC1100

1 SUB ON

MAIN 5V SENSE

STB 5V SENSE

DTV 9V SENSE

SUB 5V SENSE

27

29

30

34

Sub 5V

DTV 9V

HQ3.3V

IC7501



74/109

74

PP

FUSE5V

T801

RL802

DG

Panel

AP

Regulators

IC7301

IC7401

IC7501

IC7601

IC7701


STB 5V Sense29

TV Main ON 46

IC1100

1 SUB ON

MAIN 5V SENSE

STB 5V SENSE

DTV 9V SENSE

SUB 5V SENSE

27

29

30

34

Sub 5V

DTV 9V

HQ3.3V

Sound 15V

Main 9V



75/109

75

PP

FUSE5V

T801

RL802

DG

Panel

AP

Regulators

IC7301

IC7401

IC7601

IC7701


STB 5V Sense29

TV Main ON 46

IC1100

1 SUB ON

MAIN 5V SENSE

STB 5V SENSE

DTV 9V SENSE

SUB 5V SENSE

27

29

30

34

DTV 9V

HQ3.3V

Sound 15V

Main 9VIC7501

Sub 5V



76/109

76

PP

FUSE5V

T801

RL802

DG

Panel

AP

Regulators

IC7301

IC7401

IC7601

IC7701


STB 5V Sense29

TV Main ON 46

IC1100

1 SUB ON

MAIN 5V SENSE

STB 5V SENSE

DTV 9V SENSE

SUB 5V SENSE

27

29

30

34

DTV 9V

HQ3.3V

Sound 15V

Main 9VIC7501

Sub 5V

Panel 12V



77/109

77

PP 5V

T801

RL802

DG

Panel

AP

Regulators

IC7301

IC7401

IC7601

IC7701


STB 5V Sense29

TV Main ON 46

IC1100

1 SUB ON

MAIN 5V SENSE

STB 5V SENSE

DTV 9V SENSE

SUB 5V SENSE

27

29

30

34

DTV 9V

HQ3.3V

Sound 15V

Main 9VIC7501

Sub 5V

Panel 12V

24V

FUSE

RefRef: AP Board Regulator Circuit: AP Board Regulator Circuit (1)(1)

AP24V

24V


78/109

78

DG

AP

5V

15V

IC7701

IC7401

IC7301

9V

IC7501

12V

Regulator

SOUND 15V

DTV 9V

PANEL 12V

SUB 5V

HQ3.3V3.3/9V

IC7601

FET MAIN 9VQ7551

MAIN_ON from MCU

PANEL_ON from MCU


AP24V

24V


79/109

79

DG

5V

15V

IC7701

IC7401

IC7301

9V

IC7501

12V

Regulator

SOUND 15V

DTV 9V

PANEL 12V

SUB 5V

HQ3.3V3.3/9V

IC7601

FET MAIN 9VQ7551

MAIN_ON from MCU

PANEL_ON from MCU


APIC7301

24V24V


80/109

80

DG

5V

15V

IC7701

IC7401

IC7301

9V

IC7501

12V

Regulator

SOUND 15V

DTV 9V

PANEL 12V

SUB 5V

HQ3.3V3.3/9V

IC7601

FET MAIN 9VQ7551

MAIN_ON from MCU

PANEL_ON from MCU

ON

ON

ON


81/109


APIC7301

24V24V


82/109

82

DG

5V

15V

IC7701

IC7401

IC7301

9V

IC7501

12V

Regulator

SOUND 15V

DTV 9V

PANEL 12V

SUB 5V

HQ3.3V3.3/9V

IC7601

FET MAIN 9VQ7551

MAIN_ON from MCU

PANEL_ON from MCU

ON

ON

ON

ON

ON


APIC7301

24V24V


83/109

83

DG

5V

15V

IC7701

IC7401

IC7301

9V

IC7501

12V

Regulator

SOUND 15V

DTV 9V

PANEL 12V

SUB 5V

HQ3.3V3.3/9V

IC7601

FET MAIN 9VQ7551

MAIN_ON from MCU

PANEL_ON from MCU

ON

ON

ON

ON

ON


APIC7301

24V24V


84/109

84

DG

5V

15V

IC7701

IC7401

9V

IC7501

12V

Regulator

SOUND 15V

DTV 9V

PANEL 12V

SUB 5V

HQ3.3V3.3/9V

IC7601

FET MAIN 9VQ7551

MAIN_ON from MCU

PANEL_ON from MCU

ON

ON

ON

ON

ON


APIC7301

24V24V


85/109

85

DG

5V

15V

IC7701

IC7401

9V

IC7501

12V

Regulator

SOUND 15V

DTV 9V

PANEL 12V

SUB 5V

HQ3.3V3.3/9V

IC7601

FET MAIN 9VQ7551

MAIN_ON from MCU

PANEL_ON from MCU

ON

ON

ON

ON

ON

ON

APIC7301

24V24V

4-3.(1) Power Distribution


86/109

86

5V

15V

IC7701

IC7401

9V

IC7501

12V

3.3/9V

IC7601

FETQ7551

ON

SOUND 15V

SUB 5V

DTV 9V

MAIN 9V

HQ3.3V

PANEL 12V

STB 5VFrom Switch

4-3.(2) Power Distribution Sound 15VSUB5V

AP H DG


87/109

87

IC7301

IC7401

IC2301

IC2302

Audio Amp

Audio Amp

IC2002

TU3200

Audio Amp

AnalogueTuner

Sub 5V

Sound 15V

AP3

3

2

22

21

H3

3

2

22

21

DG2

14

12Sub 5V

H2

14

12

Q5692

Sub 5VMain 5V

IC4500/4501

EPROM

IC4513/4514

BUS REP

Main 5V

Sub 5VTU8301

Digital

Tuner

4-3.(3) Power Distribution DTV 9VMain 9V

AP H IC3001

Vid SW

DG IC8001Peaks Lite2


88/109

88

IC7501

IC3002

Video SW

Audio Swi tch

IC2011

Audio Amp

DTV 9V

AP3

1817

2322

Main 9V

Q401-4003AH-F_Y

AH-F_VAH-F_S

IC5660

Q751

IC2690

Q2639

BT30V Supply

DG2

21

H2

21

Main 9V

IC2013

H3

1718

2223

Regular

Main 9V

DG2

21H2

21DTV 9V DTV 9V

DTV9VSUB 3.3V

SUB3.3V

IC5660

Reset

IC8004

Clock gain

IC8601EPROM

IC4002

Regulator

IC5600

DC/DC decoder

IC 8301COFDM DEM

24V Det

ONOFF


89/109

4-3.(5) Power Distribution Panel 12V

AP H DG Panel


90/109

90

IC7701Panel 12V

AP4

12

11H4A

11

12

DG25

1

2

3

4

DG2

11

12

H2

11

1212V

Panel Control ler

Inverter


91/109



92/109

92

1. Review and Chassis Structure2. Signal Circuit

3. Trouble Shooting4. Power Supply circuit5. Protection circuit

6. Service information


93/109

93

5.Protection Circuit

Once4.0sec (interval)

Light

5.(1)5.(1) PProtection Circuitrotection Circuit


94/109

94

Light

No Light

LED

Blinking

times

Contents Check Point

2

3

4

5

6

8

1

9

7

10

FAN SOS

DTV9V abnormality

SUB5V abnormality

MAIN9V abnormality

MAIN3.3V abnormality

INVERTER_SOS

MAIN5V abnormality

Voltage for sound abnormalityHQ1L_SOS

Board

H, AP, DG Board (BT30V,SOUND15V,PANEL12V,HQ3.3V Short)

AP, H, DG Board (BT30V,SOUND15V,PANEL12V,HQ3.3V O.V.P.)

AP, H, DG Board

AP, H, DG Board

DG Board

LCD panel, DG Board

DG Board

H, DG Board (Sound SOS*)DG Board

13 Communication error (PeaksLite2_GenX4) DG Board

No FAN

REG. voltage abnormality

5.(2)5.(2) PProtection Circuitrotection CircuitPower LED Status

No Light

Defective Board

P, DG BoardNote :

How to stop power supply completely is

disconnecting AC cord,

not turning OFF the power SW.Relay doesnt turn ON by Power SW ON and Remote Power ON


95/109

95

Yes

LCD Panel

V+V-

24V

INV SOSINV ON

12V

NoAC power code NG or Power Source NG

AC output

between 1 and 2 pin

of P11 ?

When AC Plug IN,

STB 5V output

at P8s 1 pin ?

No

Yes

DG Board

P Board

Relay doesn t turn ON by Power SW ON and Remote Power ON

1

2

STB 5V

SENSE

IC1100

AP

PSTB

Trans

Relay

Line

Filter

T801

RL802

Q802

MCU

D801

DGH

DG2

23 29H2

23H4A

3

AP4

3

AP5P5

8 8

P10

31

P9

5-8

STB5V

STB5V

P8

1

1

2

R LED ON49LED(R)

VDG1

3V1

7

P11

2

1

STB 3.3V

Power

Switch


96/109


97/109

5.(5)5.(5) LED 4 times blinkLED 4 times blink

Case1) DTV 9V down

Case2) Over :SOUND 15V, SUB5V, DTV9V, PANEL 12V, HQ 3.3V, 24VAP, H, DG Board

Contents Defective Board


98/109

98

LCD Panel

V+

V-

24VINV SOS

INV ON

12V

SUB_ON

IC1100

P

STB

Trans

Relay

Line

Filter

T801

RL802

Q802

MCU

D801

DGH

1

AP4

8

P5

1-3

P10

3

1

P9

5-8

5Vs

5Vs

LED(R)

V

R LED ON49DG1

3

V1

7

P11

21

AP SOUND 15V

HQ3.3V

PANEL12V

STB5V

Q7204

Q7201

Q7202

AP5

1-33

DTV 9V

IC7601

IC7701

15V

3.3V

IC7301

15V

SUB5VIC74015V

IC75019V

24V

4

9

L

30 DTV9V SENSE

AP3

17-18

H3A

17-18

H2

8-9

DG2

8-9

IC3101

H4A

8

H6 DG6

4949

Yes

No

Yes

Disconnect DG2.

H2s 8 pin

Short with GND ?

No

H Board

1 2Disconnect AP3.AP3s 17,18 pin

Short with GND ?

Yes

Disconnect DG2.

DG2s 8 pin

Short with GND ?

DG Board

3

AP Board

1 2

3

Power SW on.24V outputat P5s 1~3 pinbefore shutdown ?

LCD Panel

No (Over 24V)

4

Yes (The other volts over)

AP Board

No

P BoardNo (V)


MAIN 9V AP, H, DG Board



99/109

99

LCD Panel

V+

V-

24VINV SOS

INV ON

12V

SUB_ON

IC1100

AP

P

P11

STB

Trans

Relay

21

Line

Filter

T801

RL802

Q802

MCU

D801

DGH

DG6

49 1

H6

49

H4A

8

AP4

8

AP5

9

P5

9L1-3 1-3

P10

3

1

P9

5-8

5Vs

5Vs

24V

IC7501

9V 66 MAIN9VSENSE

Q7551 AP3

23

H3A

23 H221DG221

MAIN 9V

Yes

NoDisconnect AP3.

AP3s 23 pin

Short with GND ?

1

1 2

49 R LED ONLED(R)

VV1

7

DG1

3

L

Yes

DG Board

Disconnect DG2.

H2s 21 pin

Short with GND ?

No

H Board

2

AP Board


SUB 5V AP, H, DG Board



100/109

100

LCD Panel

V+

V-

24VINV SOS

INV ON

12V

SUB_ON

IC1100

AP

P

P11

STB

Trans

Relay

21LineFilter

T801

RL802

Q802

MCU

D801

DGH

DG6

49 1

H6

49

AP4

8

AP5

9

P5

9

1-3 1-3

P10

3

1

P9

5-8

5Vs

5Vs

24V

IC7401

5V 34 SUB5V SENSE

AP3

21-22

H2

12-14

DG2

AP4

8

H3A

21-22SUB5V 12-14

1 2

49 R LED ON

LED(R)

VV1

7

DG1

3

IC2008

L

L

Yes

NoDisconnect AP3.

AP3s 21,22 pin

Short with GND ?

1

Yes

H Board

Disconnect DG2.

DG2s 12 or 14 pin

Short with GND ?

No

DG Board

2

AP Board


MAIN 5V DG Board


The defective board is DG board only.


101/109

101


LCD Panel

V+

V-

24VINV SOS

INV ON

12V

SUB_ON

IC1100

AP

P

P11

STB

Trans

Relay

21

Line

Filter

T801

RL802

Q802

MCU

D801

DGH

DG6

49 1

H6H4A

8

AP4

8

AP5

9

P5

9

1-3 1-3

P10

3

1

P9

5-8

5Vs

5Vs

24V

IC7401

5V 27 MAIN5V SENSE

AP3

21-22

H3A H2

21-22 12-14

Q5692Q5690

5V

IC4513,IC4514

MAIN_ON

49 R LED ON

LED(R)

VDG1

3

V1

7

L

LSUB5V

12-14

49

DG2MAIN5V


MAIN 3.3V DG Board




102/109

102

G y

LCD Panel

V+

V-

24VINV SOS

INV ON

12V

SUB_ON

IC1100

P

P11

STB

Trans

Relay

21

Line

Filter

T801

RL802

Q802

MCU

D801

DG

1

P5

9L1-3

P10

3

1

P9

5-8

5Vs

5Vs

67MAIN3.3V

SENSE

Q5691Q5693

IC8001,

MAIN3.3V

49 R LED ONLED(R)

V

AP H

H6

49

H4A

8

AP4

8

AP5

9

1-324V

IC7501

9V

AP3

17-18

H3A

17-18

Q7551

L

H2

MAIN_ON

V1

7

8-9

DTV9V

DG1

3

DG6

49

8-9

DG2 IC5660

3.3V

SUB3.3V


SOUND 15V SOS H, AP Board

Contents Defective BoardNo

AP Board

Power SW ON.

15V output

at AP3s 2 or 3 pin OK

before Shutdown ?

1


103/109

103

Yes

1

H Board

LCD Panel

V+V-

24V

INV SOS

INV ON

12V

SUB_ON

IC1100

AP

P

P11

STB

Trans

Relay

21

Line

Filter

T801

RL802

Q802

MCU

D801

DGH

149

H4A

8

AP4

8

AP2A

9

P5

9L

1-3 5-7

P10

3

1

P9

5-8

5Vs

5Vs

24V

IC7301

15V 118 SOUND SOS

AP3

2-3

H3A

2-3

H639

IC2301, IC2302

DG6

H

49R LED ON

LED(R)

VV DG1

MAIN9V

Q2301

MAIN_ON

SOUND15V

49

39

5

L

SOS

7 3

IC2303

12V

5.(5.(111)1) LED 10 times blinkLED 10 times blink

The defective board is DG board only.HQ1L Communication(*) Error DG Board


(*) HQ1L(IC4200)-Peakslite2(IC8001) Communication


104/109

104

SUB_ON

IC1100

AP

LCD Panel

V+V-

24V

P

P11

STB

Trans

Relay

21

Line

Filter

T801

INV SOS

RL802

Q802

MCU

D801

DG

INV ON

H

DG6

1

H6

49

H4AAP4

8

AP5

9

P5

9L1-3 1-3

P10

3

1

P9

5-8

5Vs

5Vs

24V

AP3

16

17

H3A H2 DG2

HQ3.3V

IC4200

49 R LED ON

HQ1L

IC8001

LED(R)

V

12V

DTV9V

SUB5V

IC7601

3.3V

IC7501

9V

IC7401

5V 2122

17

18

16

17

21

22

17

18

1

2

121314

8

9

8

V1

7

DG1

3

1

2

121314

8

9

49

IC4204,IC4208

3.3VSUB5V

IC4202

1.2VSUB9V

1.2VHQ3.3V

IC4205,IC4206

2.5V

IC4203

( ) HQ1L(IC4200)-Peakslite2(IC8001) Communication

Peakslite2

No Picture with normal sound

Symptom No picture

Result DG board defectH board defect

3-3.No picture


105/109

105

No

Yes

Only Digital

TV Picture NG

ALL Input Source

Picture NG ?

DG Board

Only HDMI

Input Picture NG

No

Yes

H Board

LCD Panel or DG boardNo picture but

OSD is displayed ?

H BoardOnly AV Terminal

Picture NG

No

Yes

Tuner (H Board)

Analog TV

Picture NG

AV Terminal

Picture OK?H Board

(Front view)

DG H

All

LCD panel DG BoardTuner

Actual market trouble(1)

4 times LED blinking

No picture


106/109

106

(Front view)

Result (Rare case)

Service manual (Usually)

Panel defect= Not board defect

DTV9V abnormality

AP, H, DG Board defect

(BT30V,SOUND15V,PANEL12V,HQ3.3V O.V.P.)

AP

No picture

H DG

But

Strange sound

Strange sound from back side or speaker



107/109

107

Panasonic

Strange sound from back side or speaker

Inverter troubleEspecially early morning.

Back side

Speaker

1)IC2106 defect.Audio processor on H board

2)Coupler trouble (Disconnect etc)


108/109

Unstable condition

Not always but sometime trouble



109/109

109

DG board defect

Normal picture

No Picture

Dark pictureFreeze picture

Not always but sometime trouble

Result

Normal pictureAfter a while After a while

Power ON Power offAutomatically

After a while After a while

Power onAutomatically

Documents

Panasonic 2007 LCDTV Service Guide