Tsi Th 47lf30

Technical Support InformationTechnical Support Information

Panasonic Corporation 2011

Unauthorized copying and distribution

Is a violation of law.

cCS Promotion CenterCS Promotion CenterAVC Networks CompanyAVC Networks CompanyPanPanasonic Coasonic Corporationrporation

2012011 Model LCD monitor1 Model LCD monitor

Full HD type TH-47/42LF30 Series

Slide 2

IndexIndex

2.Power ON operation

5.Service Notes

4.Signal Process Circuit

6.Trouble Shooting

3.Voltage Distribution

1.Features

Slide 3

1.Features1.Features

Back Side View e.g. TH-42LF30

V2 Board

V1 Board

P Board

A Board

DS Board

HX Board

Board FunctionFunctionP BoardA BoardDS Board

HX Board

V1 BoardV2 Board

Power Supply

Digital Core Signal ProcessorSlot InterfaceR232C_IN,R232C_OUT,PC_DVI_Audio_IN,Composit_Component_Audio_INRemote ControlControl Button, Power Switch

1. FeaturesThere are 6 boards as follows at TH-42LF30 back side view.Please refer to the figure, item Function

Slide 5

2.Power On Operation2.Power On Operation

A board

Plug in

FuseFilter

P board

V2 board

V1 board HX board

Remote Control

SW1551

RM1505receiver

StandbyConverter

T201

V22 A22

STB5V

STB5V

STB5V

STB5V

IC4801SUB CPU

STB5V

IC4002MUTE

IC4504EEPROM

IC4508EEP JIC

STB5VA7HX7HX11V11

ON/OFF command

Q4124Q4117

SWON command

StandbyConverter

T201

SubConverter

T301

MainConverter

T401

A6P6

IC4003STB forSpeaker

IC4601

IC4602

IC4603

IC4604

IC4605

Q4601SW

IC460724V

12V

ON command

3.3V

1.2V

5V

5V

3.3V

1.8V

1.2V

MCU 5V

To IC4501 Main CPU

To IC4701 LVDS receiverTo IC4501 main CPU

To DS board

5V

5V ON

P2 P3To Back light To Inverter

24V

5V FSTB15V

16V IC4001Speaker

Amp

A13

1

3

2

4

5

4

4

4

6

6

7

8

4

To LCD Driver

ON command

To IC4701HDMI SW

DVI Interface

9

For main CPU

For main CPU

2 (1). Power On Operation

3

Power Factor Control

ON command

10

A4

A5

P4

P5

ON command

11

9

9

10

VoltageCommand

1

2

3

4

5

When AC plug is in, plug voltage is applied to fuse and filter of P board.After passing the standby converter T201, plug voltage is converted to 5V.

On the other hand, 5V passing the P6/A6 terminal is used as STNDBY voltage.This STANDBY voltage is supplied to V2 board via A22/V22 terminal.5V is applied to SW1551 of V2 board.


5V is supplied to A board via P5/A5 and P6/A6 terminal.5V through the A5 terminal is supplied to IC4601 and IC4602.5V is converted to 3.3V and 1.2V by these 2 ICs.Both 3.3V and 1.2V are supplied to HDMI SW/DVI interface IC4701.

When the customer press the power switch button, SW1551 is ON.After SW1551 was ON, 5V is supplied to A board again via A6 terminal with 5 usages follows.1)Supplied to SUB CPU IC4801 and IC4801 recognizes that power switch ON.2)Supplied to DS board for SLOT and LAN operation.3)Supplied to RM1505 of V1 board via HX board.

RM1505 is remote control receiver. There is no process of passing the HX board. 4)5V is supplied to IC4508 and IC4504 EEP. These 2 ICs are combined to main CPU IC4501. 5)5V is supplied to IC4001 Speaker amp.

On/OFF command by remote control is received by RM1505 of V2 board.This command is sent to sub CPU IC4801.By receiving this command, IC4801 recognizes the ON/OFF command of remote control.

6 After receiving remote control ON command, IC4801 switch ON Q4124/Q4117.After Q4124/4117 was ON,5V is supplied to P board via A6/P6 terminal.


5V from Q4124/4117 is supplied to Power Factor Circuit of P board.This circuit supplies the plug voltage to sub converter T301 and main converter T401.7

IC4801 SW ON the Q4601 and 5V is supplied to IC4603, IC4604 and IC4605.IC4603 convert 5V to 3.3V and supply to IC4501 main CPU.IC4604 and IC4605 convert 5V to 1.8V and 1.2V.Both 1.8V and 1.2V are supplied to IC 4501 main CPU and IC4701 LVDS receiver.

8

IC4801 send ON command to sub converter T301 via A4/P4 terminal.Sub converter T301 converts the plug voltage to 16V.This 16V is distributed to IC4001 speaker amp. of A board and DS board via A13 terminal.15V supplied to DS board is called FSTB15V and used as power of slot / LAN at DS board.

9

IC4801 send ON command to main converter T401 via A5/P5 terminal.Main converter T401 converts the plug voltage to 24V.24V is supplied to backlight and inverter of LCD panel via P2/P3 terminal.Another 24V is supplied to A board via P5/A5 terminal.

10

After start supplying 24V, IC4801 send ON command toIC4607.IC4607 has 2 function.1)Power switch for LCD panel driver and the other is the converter of 24V to 12V.2)Supplly 12V to LCD panel driver via A1 terminal.

11

Slide 9

3.Voltage Distribution3.Voltage Distribution

STBCircuit

PowerCircuit

P

A16 A171/31/2

Speaker

24VMCU 5V

P21/5

P31/5

P51-2

5-7

24V

24V

To Inverter

To Inverter

3 (1). Voltage Distribution

LCD Panel

IC460724V12V

Panel Control

A51-2

5-7

Q4601 IC4605

IC4604

5V1.2V

5V1.8V

IC4001Audio Amp

A

DS

16V

15V

A13

1/515V

IC4603

IC4601

IC4602

5V3.3V

5V1.2V

IC4701HDMI SW/DVI

IC4501Main CPU

IC42023.3V1.8V

3.3V

1.8V

5V1.8V

5V

Only Switch function

5V

1.2V

1.8V

3.3V

1.8V

1.2V

IC4201LVDS

Receiver

P6 A61

5

2

1

5

2

11

A7

11

1/5

DS1311

To V2 board

STB 5V

STB 5V

STB 5V

STB 5V Power supply to slot and LAN

ON/OFF command from SUB CPU IC4801

1

To V1 boardVia HX board

A22

5

A13

P3

P41-3

A4

1-3

1

2

2

3

1 4

5

5

5

5

6

6

6 7

SW 2

1

2

3

3 (2). Voltage DistributionSTBY 5V is start generating after plug in.STBY 5V is supplied to A board via P6/A6 terminal.After entering A board,STBY5V is sent to 1)V1 board for remote control receiver via A7 terminal2)V2 board for power press switch via A22 terminal3)DS board for slot and LAN operation via A13 terminal.

After receiving power ON command (from SUB CPU IC4801)MCU5V is started to supply.MCU5V is supplied to A board via P5/A5 terminal.After entering A board, this 5V is distributed to Q4601,IC4601 and IC4602.5V is converted to 1.8V and 1.2V by IC4601 and IC4602.Both 1.8V and 1.2V are supplied to main CPU IC4501.

Q4601 is the switch function and receiving power on command from sub CPU IC4801.After SW ON, 5V is supplied to IC4605,IC4604 and IC4603.5V is converted to 1.2V,1.8V and 3.3V by IC4605,IC4604 and IC4603.1.2V,1.8V and 3.3V are supplied to Main CPU IC4501.Only 3.3V is supplied to IC4201 LVDS Receiver, too.

4

3 (3). Voltage DistributionThere is IC4202 next to IC4603.MCU5V is converted to 3.3V by IC4603.After this procedure,3.3V is converted to 1.8V by IC4202.1.8V is supplied to IC4201 LVDS receiver.

4 There is IC4202 next to IC4603.MCU5V is converted to 3.3V by IC4603.After this procedure,3.3V is converted to 1.8V by IC4202.1.8V is supplied to IC4201 LVDS receiver.

5 After receiving power ON command (from A board) P board start supplying 16V.16V is supplied to A board via P4/A4 terminal.1)15V is supplied to IC4001 speaker amp.2)15V is supplied to DS board via A13/DS13 terminal.

After entering to DS board,15V is used to SLOT/LAN operation.

6 Next step to above process, P board receive another power ON command from A board.P board start supplying 24V.24V is supplied to inverter circuit and back light circuit of LCD panel side via P2/P3 terminal. Another way, 24V is supplied to A board via P5/A5 terminal, too.

7 Only this lines 24V is converted to 12V by IC4607.After converting 12V is supplied to panel driver of LCD side.24V.

Slide 13

4.Signal Process Circuit4.Signal Process Circuit

DSDS AA

IC4201

LVDSreceive

Synccontrol

IC4201

LVDSreceive

Synccontrol

HXHX

SLOT 1

PC

IC4501

I/P CONV.

FORMATCONV.

2-SCREENCOMPOSITION

OSD addition

LVDS conv.

Through

< Picture flow from input terminal to output >

30 bit RGBVideo Signal

IC4701HDMI SW/DVI Display chn

DVI IN HDMI IN 1 HDMI IN 2

HDMI DataTMDS Data

Analogue Video data

Component RGB

Analogue Video data

Digital Video data

DVi/HDMI data

LVDS Data to LCD panel

4 (1). Signal Process Circuit

SLOT 2

IC3503IC3504

RS232CDriver

Slide 15

The function of A board is the processor of incoming video signals and audio signals.

The video input signal format can be Y/C, or Y, Pb, Pr.A comb filter, inside IC4501 converts the composite video signal of the main picture to Y and C (luminance and chrominance) signals.

At the completion of this process, the format of the composite or HDMI/DVI input (Digital Video Interface)Video signal is now the same as a digital component signal.

If the incoming video is in the 480p, 720p, 1080i, and 1080p format, the Y, Pb, and Pr signals undergo A/D (analog to digital) conversion only. Finally all picture signals are converted to 1080p.

This Video Process section of the IC4501 performs all picture control operations such as brightness, contrast, color, tint, etc.

On Screen Display data such as adjustment item are mixed with the video data. LVDS (Low Voltage Differential Signaling) is output to LCD panel from A1 terminal.

4 (2). 4 (2). Signal Process CircuitSignal Process CircuitVideo Signal

DSDS AA

HXHX

SLOT 1

PC

IC4501Audio MUX

DSPD/A Conv.A/D Conv.

Analogue Audio Signal

IC4701HDMI SW/DVI Display chn

DVI IN HDMI IN 1 HDMI IN 2

HDMI DataTMDS Data

Component RGB

DVi/HDMI data



IC4001AudioAmp.

To Speaker

4 (3). Signal Process Circuit

SLOT 2

IC3503IC3504

RS232CDriver

Slide 17

All audio signal input are sent to IC4501.Same IC as video signal processor.

All input audio signal is converted to digital signal (A/D convert ) before entering to the audio signal processing.Audio signal is processed by digital format.

After passing audio signal process, audio signal is converted to analogue format signal and sent to audio amp IC4001.

Audio signal is amplified by this IC4001 and sent to the speaker.

Audio Signal4 (4). Signal Process Circuit

Slide 18

5.Service Notes5.Service Notes

< Protection function > < Protection function >

CPU of LCD monitor is checking the voltage at some important points.

When something trouble has happened at these points,

CPU detects the trouble by abnormal voltage input.

After detecting this abnormal information, CPU shut down the power supply and

Start Red LED blinking to inform us the detecting point as follows.

Blinking pattern at Power LED (Sample 4 times blinking)

1 sec 1 sec 1 sec 1 sec 1 sec3 sec

1 2 3 4 31 2

5 (1). Service Notes

4

1 sec

Power LED color is red.

The defective block can be identified by the number of blinks of the Power LED on the front panel of unit.

Blinking Times Contents and Check point Check point

2

4

10

13

Power SOS

Panel 12V SOS

DS SOS

Regulator SOS

A board

A boardP board

DS board

A board


1. Press and hold Volume down (-) button on the front panel of a unit

and press Recall button on a remote control 3 times quickly within 2 seconds, then you can go into CAT mode.

2. The table as right diagram is displayed.

Y525(480i)/60p

16:9 DYNAMIC Hi

Panel W/B Adj

R DRIVE

55 53

Original Data New Data

Select the IIC mode by Up/Down button on the remote control at the CAT mode.After select the item IIC mode, press the Action button of remote control.

Select the alignment subject by UP/Down buttons on the remote control.

Select the alignment subject by Left/Right buttons on the remote control.Adjust the optimum setting by Volume UP/Down buttons on the remote control. The data is memorized when press the R button on the remote control

FT Mode Fan Trouble only

IIC ModeIIC Mode

To exit this mode, press the R button.


01.02.03.04.05

1st LED blinking after shipping (FIXED)2nd LED blinking after shipping (FIXED)

Latest LED blinking (Renewal)Previous LED blinking (Renewal)

Second previous LED blinking (Renewal)

Select CD Mode by Up/Down buttons on the remote controland then keep pressing the Mute button on the remote control more than 3 seconds.

To exit the MS mode, press the R button on the remote control.

( the number is hexadecimal )

( This drawing is a 85PF12 )

CD ModeCD Mode



Select SD Mode by Up/Down buttons on the remote controland then keep pressing the Action button on the remote control.

SD ModeSD Mode

Input command check

MTBF Parameter

Condition

Sensor

00 00 00 FD FE 49 4A49 14 15 17 16 17 1812 D4 4B 49 05 49

13 27

1

+35

118

WT PT

TE

History of remote control command / Factory use

WT: Counter of Power ON.In this case, power on 13times

PT: Cumulative time of Power ON condition.In this case, power on 27 hours

TE: The number of times temperature error.In this case, error has happened 1 time.

Condition: Temperature unit

Sensor : Illumination sensor value



CD Mode for LED blinking history.

01.02.03.04.05

1st LED blinking after shipping (FIXED)2nd LED blinking after shipping (FIXED)

Latest LED blinking (Renewal)Previous LED blinking (Renewal)

Second previous LED blinking (Renewal)

Select CD Mode by Up/Down buttons on the remote controland then keep pressing the Mute button on the remote control more than 3 seconds.


( the number is hexadecimal )

( This drawing is a 85PF12 )


1. Select number(*) for your country by Left/Right buttons on the remote control.2. Press the Mute button on the remote control.3. The display of Present number is changed to the number you selected.To exit the MS mode, press the R button on the remote control.

After entering to the Service Mode, CAT front panel, select the MS Mode by Up/Down buttons on the remote controlThen keep pressing the Mute button on the remote control more than 3 seconds.

Market select 11.01 1 1MS

Change by Left/Rightbuttons on the remote control

Present number

EEPROM data version

(*) Please refer to the Service Manual for the number of your country.

Default setting is 0 (= Japan)1 (= for north America )3 (= for Asia, Oceania, Middle East)

18 (= China)20 (=Europe, CIS)


1. Self check is used for automatic check of ICs controlled by bus line.2. Select the ID mode by UP/Down (-) button of remote control at the front page

of CAT mode .After that keep pressing the Mute button on the remote control more than 3 seconds.

3. Results of diagnosis are displayed on the screen as follows.

If Self check completed normally,OK is appeared.

If Self check completed abnormally,NG is appeared.

(*) When NG is displayed, NG appearing board is defective.

The line of the PTCT displays when you get into the self-check mode for the first time only after the Power LED blinks.

=Once you check this screen, the PTCT line disappears.

PTCT ** H09 :** = LED blinking times

: board name/different from some models



Slide 27

6.Trouble shooting6.Trouble shooting

6 (1). Trouble Shooting 6 (1). Trouble Shooting

No Picture No Picture /Abnormal picture /Abnormal picture : except Panel Defect: except Panel Defect / Sound is normal/ Sound is normal

Picture problem is happenedin all input ?

Yes

Flexible cable at A1 terminal is fixed completely?

A BoardMainly Video SignalProcessor defect

YesReconnect steady and check again from the beginning.

Only Component RGB input has problem.Another inputs are normal.Component input terminal area of A boarddefect.

Only DVI input has problem.Another inputs are normal.DVI input terminal area of A board defect.

Only HDMI input has problem.Another inputs are normal.HDMI input terminal area of A board defect.

Only PC input has problem.Another inputs are normal.PC input terminal area of HX board defect.

No

No

6 (2). Trouble Shooting 6 (2). Trouble Shooting

Audio problemAudio problem

Sound problem is happenedin all input ?

Yes

Output of A16/A17terminal is 5V ?

Speaker defect

Yes

Audio amp defectA board (IC4501)

Only Component input has problem.Another inputs are normal.Component input terminal area of HX board defect .

Only PC/DVI audio input has problem.Another inputs are normal.PC/DVI input terminal area of HX board defect.

Only HDMI input has problem.Another inputs are normal.HDMI input terminal area of A boarddefect. (IC4701)

No

No

If one of speaker is normal, either right or left.The other one should be defective.

Slide 30

Update HistoryUpdate HistoryIssue date Update part Update explanationDec.1st. 2011 First version.

Thanks

ThanksThanks

Tsi Th 47lf30

Documents

Transcript of Tsi Th 47lf30