Panasonic 2018 Schematic

Order No. ITD1803902GE

2018 - LCD TV / OLED TV

Model No. LCD-201803

OLED-201806

Circuit Operation and Troubleshoot

Ver. 2.0

Revision History

Version Issued/Revised

date

Ver. 1.0 27th. Mar. 2018 First version

Ver. 2.0 11th. Jun. 2018 Add new models (except OLED)

Revised content

P.5, 11, 16, 19, 51: Add new models P.20, 55-57, 76, 77: Add pages for new models

Add OLED models information

P.5, 11, 16, 19, 29, 38, 42, 49, 51, 70: Add OLED models P.10, 20, 27, 28, 46, 47, 61-63, 68, 71, 78-87: Add pages for OLED models

INDEXINDEX

1.Board Layout

2.Video Signal Processing

2-1. Picture signal flow

2-2. Troubleshoot of Picture Problem

3.Power Supply

3-1. Power Board Structure

3-2. Stand by / Start up Operation

3-3. SOS Protection Circuit and Troubleshoot of Power Problem

4.Handling and Rear Cover Disassemble and Assemble

5.Information for OLED Model

1. Board Layout

Board Layout -1

49/43/32/24FS***/F4**, 40FS***/F4** (Europe and Oceania)

G K

The presence of GK board is depend on the model and region.

55/49/43/40FX6** 65/55/49/43/40FX7**/FX8** 55FZ**

50FS*** 65FX6**, 75FX7**/FX8**

LDP

40FS***/F4** (Latin and Asia)

G K

LDP

65FZ***

G K

Board Layout -2

( A+P )

AC input

A15

A10

( 32F400 )

A02

A12

Speaker Speaker

(T-CON)

Not repairable,

One of the panel module

Board Name Function

A-Board Main Board

P-Board Power supply, Backlight Drive, Power key, Control key

K-Board Remote Receiver, Power LED

K10

Board Layout -3

( A+P )

A16

A12

( 55FX700 )

A02

JK8705

A10

Bluetooth

Module

AC input

Speaker

WiFi Module

Board Name Function

A-Board Main Board

P-Board Power supply, Backlight Drive

Speaker

K10

(T-CON)

Not repairable,

One of the panel module

Board Name Function

K-Board Remote Receiver, Power LED

GK-Board Power key, Control key

Board Layout -4

( A+LDP )

DC input,

Connect the

AC adapter

LDP

LDP1

( 40F400 )

A02

A11

A10

Speaker Speaker

(T-CON)

Not repairable,

One of the panel module

Board Name Function

A-Board Main Board

P-Board Power supply, Backlight Drive, Power key, Control key

K-Board Remote Receiver, LED

K10

Board Layout -5

( A+P+LDP )

AC input

LDP3

LDP5

LDP

LDP2

LDP4

A16

( 75FX750 )

A15

A02

JK8705

Speaker

K10

WiFi Module

Board Name Function

A-Board Main Board

P-Board Power supply for Signal Process

A12

A10

Not repairable,

One of the panel module

(T-CON)

Not repairable,

One of the panel module

Speaker

Bluetooth

Board Name Function

LDP-Board Power supply for Backlight Drive

K-Board Remote Receiver, Power LED

Module

Board Layout -6

OLED

(A+P+PB)

AC input

CN11

CN5

PB6

PB5

(T-CON)

Not repairable,

One of the panel module

( 65FZ series )

There is no PB board in 55FZ series

A15

PB4GK4

A16

A02

JK8705

CN10

CN6

A10

A12

WiFi Module

Board Name Function

A-Board Main Board

P-Board Power supply for Signal Process

PB-Board Power supply for Panel

(The Speaker of FZ1000 is separated.)

Bluetooth Module

Board Name Function

GK-Board Key

K-Board Remote Receiver, Power LED

K10

Board Structure

F4** FS4**/5**/6** FX5**/6**

(4K)

24inch A+P A+P --- --- ---

32inch

40inch

43inch

49inch

A+P A+P --- --- ---

A+P

(Oceania)

A+LDP

+DC adaptor

(Asia/Latin)

A+P A+P A+P A+P ---

A+P

(Europe/Oceania)

A+LDP

+DC adaptor

(Asia/Latin)

A+P A+P ---

FX7**/8** (4K)

FZ*** (OLED)

50inch

55inch

65inch

75inch

--- A+P+LDP --- --- ---

--- --- A+P A+P A+P

--- --- A+P+LDP A+P A+P+PB

--- --- --- A+P+LDP ---

Except K, GK boards

2. Signal Processing

2-1. Signal Flow

Video/Audio Signal Process - 1

F4## series

USB1

OPT_out

IC4900

Audio AMP

Antenna terminal

Component

HDMI1/2

IC68**

De-Modulation

IC8000 (MT5561)

Resize IP conv. OSD

LVDS Data

to LCD Panel

The input terminals are different by the models or countries.

Video/Audio Signal Process - 2

FS### series

WiFi

(*)Bluetooth

USB1/2

Antenna terminal

Component

TU690*

TUNER

IC68**

De-Modulation

(*)Headphone

OPT_out

IC8000 (Peaks LD11

or MT5581P)

Resize IP conv. OSD

IC3400 or 4900

Audio AMP

LVDS Data

LAN

CI-slot

(only Europe)

HDMI1/2/3

(*) The input terminals are different by the models or countries.

to LCD Panel

Video/Audio Signal Process - 3

FX6## / FX700-740 series

WiFi

(*)Bluetooth

(Only FX700)

USB1

USB2

USB3

(Only FX700)

Antenna terminal

Component

TU670*

TUNER

IC8701

(USB HUB)

(Only FX700)

IC68**

De-Modulation

(*)Headphone

OPT_out

IC8000 (MT5811Q)

Resize IP conv. OSD

IC3400

Audio AMP

to LCD Panel

( V by One format )

LAN

CI-slot

(only Europe)

HDMI1/2/3/

(*)HDMI4

(*) The input terminals are different by the models or countries.

Video/Audio Signal Process - 4

FX750-800, FZ### series

WiFi

Bluetooth

USB2

USB1

USB3(3.0)

SD card

(only TX/TC

-FZ series

Antenna terminal

TU670*

TUNER

IC8705

(USB HUB)

IC68**

De-Modulation

(*)Headphone

OPT_out

IC8000 (MT5811P)

Resize IP conv. OSD

IC3400 or

IC3800-04

Audio AMP

IC9000 (MFC19)

Frame Rate Color space Convert

to LCD Panel

( V by One format )

Component

LAN

CI-slot

(only Europe)

HDMI1/2/3/4

(*) The input terminals are different by the models or countries.

2-2. Troubleshoot of Picture Problem

Troubleshoot for Picture/Sound Problem

<TV Self Test> : Customers also can check the picture and sound by internal data.

If the picture and sound is no problem, the reason of trouble is mostly not a TV.

How to display :

Menu HELP TV Self Test

#)The test pattern and test sound are created by the main IC on the A board.

TV Self Test

(OK)

1) During this indication “Self Check of Service Mode”

is working at the background.

*) F400/410 series do not support.

2) If NG, indication is shown.

# A board defective

3) If All OK, it shifts to picture

and sound test.

1.Antenna level low

2.Connection mistake

3.Input devices NG

4.Input select mistake

Yes

TV unit defective. (A board, Panel or Speaker)

IC8000

(Peaks/MTK )

Test Pattern

Resize

IP conv.

LCD/OLED Panel

Module

T-CON

LCD Panel

When abnormal picture is displayed, troubleshoot by the test pattern in LCD module.

Troubleshoot for Picture Problem

<LCD Panel Test Mode> :

If the picture is no problem, A board must be defective. If the picture is also abnormal, LCD panel module must be defective. Just in case, confirm the flat cable connection between A board and T-CON board.

How to enter :

While pressing "volume(-)" button of the TV unit, press “Yellow" button of the remote control 3 times within 2 seconds.

How to exit :

Switch off the TV unit

#)The test pattern is created by the circuit in LCD Panel Module(T-CON board).

Abnormal picture, Bar/line/dot, Unevenness, Noise…

Ａ

v. line

h. line

many lines

Check the “Panel Test

Mode”

Test pattern

Replace A board (#1)

Test pattern

also NG

IC8000

(Peaks/MTK )

Resize

IP conv.

Confirm(Clean) the flat

cable connection

(between A board and T-CON

board of LCD Panel)

Flat cable

LCD/OLED Panel

T-CON

Test Pattern

Some patterns are automatically changed. The patterns are depend on the LCD panel.

Replace LCD Panel module

Module

LCD Panel

Ａ

Dot or mura

Color abnormal

(#1) In case of below model, please copy the data from original to spare part of A board (refer next page)

Glass Bezel Design :TX-65/55FX74#/75#/78#, TH/TC-65/55FX800 OLED model : all FZ series

Data Copy for A Board Replacement by USB Memory

When replacing A Board, the data in original A Board can be copied to USB Memory and then copy to new A board.

< Preparation > (Make pwd file as startup file in an empty USB Memory.)

1. Insert an empty USB Memory to your PC.

2. Right-click a blank area in a USB Memory window, point to New, and then click text document. A new file is created by default (New Text Document.txt).

3. Right-click the new text document that you just created and select rename, and then change the name and extension of the file to the “boardreplace.pwd” and press ENTER.

(Note) Please make only one file to prevent the operation error. No any other file should be in USB Memory.

Before replacing A Board After replacing A Board

< Data copy from TV(original A board) to USB Memory > < Data copy from USB Memory to TV(new A board) >

1. Turn on the TV.

2. Insert USB Memory with a startup file (pwd file) to USB terminal. On-screen Display will be appeared according to the startup file automatically.

3. Input Password 2770

4. Copying (maximum few minutes)

5. Finish

1. Turn on the TV.

2. Insert USB Memory with Data to USB terminal. On-screen Display will be appeared according to the Data folder automatically.

3. Input Password 2771

4. Copying (maximum few minutes)

5. Finish

6. Remove USB Memory from TV.

7. Turn off the TV. Note: New folder “user_setup” will be created in USB Memory

Note: 1. Depending on the failure of boards, function does not work.

2. This function can be effective among the same model numbers.

6. Remove USB Memory from TV.

7. Turn off the TV.

System Information

You can check some information in Help menu. MENU Help System information

System Information Software Version : 3003-10000-0200a0600019 Status1 : 0e 0201-0003 0000-0800 Status2 : 0028-123-0012c8 0035-034-651g Status3 : 00-000000-F000 Status4 : A00025-0000033-00000 Status5 : 00000-10000 17d010ff Status6 : 03166502-1000030 Status7 : 00000-0751 Status8 : 00014-00014-00001-00001 HDAVI Control : 5

Software version = 3003 – 10000 - 00200a060019

(Main – STBY – FRC )

ver. 3.003 , 1.000, 0.200a06, 0.0019

* FRC version is only for high grade models

Status1 : model ID

Status2 : 0028-123-0012c8 0035-034-651g

LSI (Package-Release-data ver), AQ (Package-Release-data ver)

Status3 : 00 = Bad block in NAND Flash

00 = Main SOC Reboot counter 00 = System crash counter 00 = Emergency(SOS) counter F000 = NAND maker ID

Status4 : A = Power on period(A<=100hrs, B<=200hrs, C>200hrs)

00025 = Power on time (hours) 0000033 = power on counter

00000 = (Fixed)

Status5 : 0 = SOS history (Latest)

0 = SOS history (last time) 0 = SOS history (last but one) 0 = SOS history (2ndtime after shipping) 0 = SOS history (1sttime after shipping) 1 = Self-check (0=never self check,

1= factory Self check by pressing “MENU”

2=indication Self check by pressing “Blue (or OK)”

0000 = (Fixed) 17d010ff = Panel ID

These list is different from the models.

(There are lower items for leader models.)

Status6 : Main SOC EEPROM version , STM EEPROM version

Status7 : STM ROMCOR version , AJAX CE version

Status8 : 00014(Hex)=20times :Starting Count of Panel Maintenance-1

(for OLED) 00014(Hex)= 20times :Completed Count of Panel Maintenance-1

00001(Hex)= 1 time :Starting Count of Panel Maintenance-2 00001(Hex)= 1 time :Completed Count of Panel Maintenance-2

HDAVI version : 5 = Viera Link version

3. Power Supply

3-1. Power Board Structure

Power Board Structure -1 ( P Board only )

< P >

( Models are refer to P.11 )

PFC

Power

This block diagram is 2ch drive for backlight. The number of channel is different by the models (LCD panels). The VLED voltage is also different by the LCD panels.

VLED

Anode

Power

1 ch

Cathode

LED

Drive

2 ch

(Backlight)

PWM

BL-ON

16V

REG

STB5V

Power Board Structure -2 ( LDP Board only )

< LDP >

( only TH/TC-40F4##/40FS### , except Europe/Oceania )

AC Adaptor

DC19.5VAC

19.5V

4 ch

DCDC LED

Drive

VLED

Anode

Cathode

(Backlight)

LDP

PWM

BL-ON

DCDC

16V

TV_SUB-ON

DCDC

STB5V

Power Board Structure -3 ( P+LDP Boards )

< P + LDP >

PFC

( only 50FS500** )

4 ch

DCDC LED

Drive

VLED

Anode

Cathode

(Backlight)

Power

PWM

BL-ON

LDP

16V

DCDC

STB5V

Power Board Structure -4 ( P+LDP Boards )

< P + LDP >

This LDP block diagram is 2ch drive for backlight of 65inch model. 4ch drive is for 75 inch models. The number of channel and VLED voltage are different by the LCD panels.

PFC

( only 65FX6**/75FX7** )

Power

DCDC LED

Drive

VLED1

VLED2

1 ch

2 ch

PWM

BL-ON

Anode

Cathode

Anode

Cathode

1 ch

2 ch

(Backlight)

LDP

16V

DCDC

STB5V

Power Board Structure -5 ( P Boards )

OLED

< P >

(TNPA6698)

( only 55FZ** )

IC7500 Power IC

There is no drive circuit for backlight

24V

(T-CON)

12V

PFC

IC7301 Power IC

16V

EVDD_ON (BL-ON)

REG

16V

TV_SUB-ON

REG

STB5V

+ 60 hidden pages