Panasonic OLED-Training Manual 2020.pdf

Panasonic Corporation 2020
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c
Model No. LCD-201904
OLED-201907
LCD-202007
OLED-202007
Order No. ITD1904902GE
1
Circuit Operation and Troubleshoot
2019/2020 - LCD TV / OLED TV
Ver. 3.0

Revision History
Version Issued/Revised
date
Revised content
Ver. 1.0 15th. Apr. 2019 First version
Ver. 2.0 24th. Jul. 2019 Add GZ(OLED) and some GX models information
Ver. 3.0 3rd. Jul. 2020 Add 2020 models (HX/HZ series)
2

3
INDEX
INDEX
1.Board Layout
2.Signal Flow and Troubleshoot of Picture Problem
3.Power Supply
3-1. Power Board Structure
3-2. Stand by / Start up Operation
3-3. SOS Protection Circuit
3-4. Troubleshoot of Power Problem
4.Caution of Board Replacement
5.Handling and Rear Cover Disassemble and Assemble

Board Layout -1
5
The presence of GK board is depend on the model and region.
55/49/43GX6**
65/58/55/49/43/40GX7**/GX8**/GX9** (except 65GX750D/W)
65/55GZ950/1000/1500
A
K
P
G
K
65GX6**,
65GX750D/W,
75GX8**
65GZ2000*
The presence of GK board is depend on the model and region.
A
K
P
LDP
G
K
55GZ2000*
A
K
G
K
Z
P
PB
A
K
G
K
Z
P
65/55HX950Z,
65HX750W,
75HX***
65HZ2000*
55HZ2000*
65/58/55/49/43/40HX7**/HX8**/HX9**
(except 65HX750W, 65/55HX950Z)
65/55HZ950/980/1000/1500

A10(B)
A02
A12
P A
AC input
K10
WiFi Module
Speaker Speaker
K
(T-CON)
Not repairable,
One of the panel module
A16
P4
6
Board Layout -2
TX-50GX800* (TH-50GX700*)
TX-50HX800* (TH-50HX700*)
( A+P )
P3
GK
Bluetooth
Module
Board Name Function
A-Board Main Board
P-Board Power supply, Backlight Drive
Board Name Function
K-Board Remote Receiver, Power LED
GK-Board Power key, Control key
JK8705
GK4
P2
P5

A02
A12
P2
P
A
AC input
K10
WiFi Module
Speaker Speaker
K (T-CON)
Not repairable,
LDP5
7
Board Layout -3
LDP
LDP3
LDP6
Board Name Function
A-Board Main Board
P-Board Power supply for Signal Process
Board Name Function
LDP-Board Power supply for Backlight Drive
TH-65GX600*
( A+P+LDP )
LDP2
Bluetooth
Module
A16
JK8705

8
Board Layout -4
Board Name Function
GK-Board Key
A
K
(T-CON)
Not repairable,
(A+P)
P
GK
Bluetooth
Antenna
AC input
P2
P5
P3
GK4
K10
A02
A15
A12
A10
A16
OLED
JK8705
Board Name Function
A-Board Main Board
55GZ1000*
WiFi / Bluetooth
Module
Speaker Speaker
CN8
CN5
CN7
CN6

9
Board Layout -5
(T-CON)
Not repairable,
55HZ1500*
(A+P)
P
GK
AC input
P3
P5
GK5
OLED
CN8
CN5
CN7
CN6
K
WiF/ Bluetooth
Module
K10
A
A02A
A15
A10
A16
JK8705
Speaker
(bottom)
Speaker
(bottom)
Woofer
Speaker
(top)
Speaker
(top)
Board Name Function
GK-Board Key
Board Name Function
A-Board Main Board
P2
A12A

Board Name Function
A-Board Main Board
PB-Board Power supply for Panel
10
Board Layout -6
Board Name Function
Z-Board Audio Board
GK-Board Key
Z
(T-CON)
Not repairable,
65GZ2000*/65HZ2000*
(A+P+PB+Z)
P
GK
AC input
P2
P5
P6
PB6
PB5
PB4
GK4
OLED
CN8
CN5
CN7
CN6
PB
K
Bluetooth
Antenna K10
WiFi / Bluetooth
Module
A
A02A
A15
A13
A10
A16
JK8705
Z13
Z08
Z21 Z20
Speaker
(bottom)
Woofer Woofer
Speaker
(bottom)
Speaker
(center)
Speaker
(top)
Speaker
(top)

2019
Models
GX6** ,
GX750D/W
(4K)
--- GX7**/8**/9**
(except GX750D/W)
(4K)
GZ950/1000/1500
(OLED)
GZ2000
(OLED)
2020
Models
HX750W
(4K)
HX950Z
(4K)
HX7**/8**/9**
(except HX750W,HX950Z)
(4K)
HZ950/980/
1000/1500
(OLED)
HZ2000
(OLED)
40inch --- --- A+P --- ---
43inch A+P --- A+P --- ---
49inch A+P --- A+P --- ---
50inch --- --- A+P --- ---
55inch A+P A+P+LDP A+P A+P A+P+Z
58inch --- --- A+P --- ---
65inch A+P+LDP A+P+LDP A+P A+P A+P+PB+Z
75inch --- --- A+P+LDP --- ---
11
Except K, GK boards
Board Structure

12
2. Signal Flow and Troubleshoot of Picture Problem

A
Component
OPT_out
USB1
(*)USB3
(*) The input terminals are different by the models or countries.
13
Video/Audio Signal Process - 1
LAN
CI-slot
(only Europe)
USB2
(*) IC8705
(USB HUB)
HDMI1/2/3/
(*)HDMI4
to LCD Panel
GX series ( except TX/TC-75GX###, TH-**GX850/880/900 )
(#)IC69**
LNA
IC6***
De-Modulation
Antenna
terminal
(#)
(#) Tuner type is different
from the region
IC3400 or
IC3800
Audio AMP
(#)TU67**
TUNER
Antenna
terminal
Head-
phone
(*) Depend on the model
WiFi/
(*)Bluetooth
IC6400
CI Controller
IC8000
(MT5812*/5813Q)
Resize
IP conv.
OSD
HX series ( except TX-**HX940, TH-**HX880/900 )

A
Component
USB3(3.0)
14
LAN
CI-slot
(only Europe)
USB2
HDMI1/2/3/4
to LCD Panel
IC9000
(MFC20)
Frame Rate
Color space
Convert
TX/TC-75GX###, TH-**GX850/880/900,TX/TC/TH-**GZ### (except GZ2000)
OPT_out
Head-
phone
IC3400
Audio AMP
WiFi/
Bluetooth
USB1
IC6400
CI Controller
(#)IC69**
LNA
IC6***
De-Modulation
Antenna
terminal
(#)
(#)TU67**
TUNER
Antenna
terminal
IC8000
(MT5813P)
Resize
IP conv.
OSD
TX-**HX940, TH-**HX880/900, TX/TC/TH-**HZ### (except HZ2000)
IC3600
eARC
(only HZ series)
IC3800
Audio AMP
IC3801
Audio AMP
IC3802
Audio AMP
(The audio circuits are
different by the models.)

A
Z
Component
WiFi/
Bluetooth
USB1
USB3(3.0)
15
LAN
CI-slot
(only Europe)
USB2
HDMI1/2/3/4
to OLED Panel
IC9000
(MFC20)
Frame Rate
Color space
Convert
TX/TC/TH-**GZ2000
IC1100,01,02,03
Audio AMP
IC1000,01,02
Audio DSP
OPT_out
Head-
phone
IC6400
CI Controller
(#)IC69**
LNA
IC6***
De-Modulation
Antenna
terminal
(#)
(#)TU67**
TUNER
Antenna
terminal
IC8000
(MT5813P)
Resize
IP conv.
OSD
OLED
TX/TC/TH-**HZ2000
IC3600
eARC
(only HZ series)

<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
Yes No
1) During this indication
“Self Check of Service Mode”
is working at the background.
2) If NG, indication is shown.
# A board defective
3) If All OK, it shifts to picture
and sound test.
(OK)
1.Antenna level low
2.Connection mistake
3.Input devices NG
4.Input select mistake
TV unit defective.
(A board, Panel or
Speaker)
Troubleshoot for Picture/Sound Problem
16
A
IC8000
(Peaks/MTK )
Resize
IP conv.
LCD Panel
LCD/OLED Panel
Module
T-CON
Test
Pattern

<LCD Panel Test Mode> :When abnormal picture is displayed, troubleshoot by the test pattern in LCD module.
How to enter :
GX/HX series except TX/TC-**GX7##, TH-**GX6## :
While pressing "volume(-)" button of the TV unit, press “Yellow" button of the remote control
3 times within 2 seconds.
only TX/TC-**GX7##, TH-**GX6## :
3 times more than 2 seconds (more slowly)
All GZ/HZ series :
3 times within 2 seconds.
Press “OK” button of the remote control, the patterns will be changed.
(Before OK button= RGB bar will scroll, After OK button= color full screen patterns will be displayed)
How to exit :
Switch off the TV unit
#)The test pattern is created by the circuit in LCD Panel Module(T-CON board).
Troubleshoot for Picture Problem -1
17
Some patterns are automatically changed. The patterns are depend on the LCD panel.
OLED
GX model example:
GZ model example:
Press OK button
(Bar scroll)

Troubleshoot for Picture Problem -2
18
A
IC8000
(Peaks/MTK )
Resize
IP conv.
LCD Panel
LCD/OLED Panel
Module
T-CON
Test
Pattern
Check the “Panel Test
Mode”
Test pattern
OK
Replace LCD Panel module
Test pattern
also NG
Replace A board (#1)
Confirm(Clean) the flat
cable connection
(between A board and T-CON
board of LCD Panel)
Flat cable
Abnormal picture,
Bar/line/dot,
Unevenness,
Noise…
Ａ
Ａ
Ａ
Ａ
A
Ａ
Color
abnormal
(#1) Refer to “4. Caution of Board Replacement (A Board Replacement)”
v. line
h. line
Dot or
mura
many
lines
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.

For T#-40GX###/HX### : There is a case that SOS1 doesn’t occur.
When there is a problem at left half or 1/4 left screen area, it might be panel (backlight LED) problem.
Check also the SOS1 troubleshoot method (P3 connector),
“Troubleshooting for LED Blinking ( 1 time blink ) for A+P type”
Other models happen the shutdown and red LED blink one time, but only these models might not shutdown.
Exception of Picture Problem ( only T#-40GX###/HX### )
LCD Module
P
T7301 Q7402
16V
P2
Q7403/05
BL-ON
5,6
A
A02
IC8000
SoC
3
2 BL_SO
S
( TNP4G646** )
Tr
(Low=Normal)
LED
Drive
IC7800
Q7853/
7854
BL-ON
D7402
C7422
D7406/22
C7424
14
15
5,6
1
10
1
10
Q7851/
7852
P3
P4
Tr
110V
19

You can check some information in Help menu.
MENU Help System information
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 (2nd time after shipping)
0 = SOS history (1st time 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
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
System Information (except TX/TC-**GX7##, TH-**GX6##)
20
These list is different from the models.
(There are lower items for leader models.)
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

You can check version information of the main SoC in Setup menu.
MENU Setup Version Info
Version Information (only TX/TC-**GX7##, TH-**GX6##)
21
Model Name Suffix is different by target region.
4K_UK UK
4K_EU Continental, DACH, CIS
4K_PA
Australia, Singapore/South Asia, Thailand,
Malaysia, Indonesia, India
4K_HK Hong Kong
4K_SA Chile/Peru
4K_CO Colombia/Panama
4K_BZ Brazil
4K_NA Canada

22
3. Power Supply
3-1. Power Board Structure

P
(Backlight)
REG
16V
STB5V
16V
LED
Drive
IC
Anode
Cathode
PWM
PFC
IC
Power
IC
Power
IC
HO
LO
VLED
< P >
A
23
BL-ON
Power Board Structure -1 ( A+ P Board )
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.
1 ch
2 ch
<A+P>

P
LDP
(Backlight)
DCDC
16V
STB5V
16V
Anode
Cathode
PWM
PFC
IC
Power
IC
HO
LO
VLED2
< P + LDP >
A
24
Power Board Structure -2 ( A+P+LDP Board )
BL-ON
DCDC LED
Drive
IC
VLED1Anode
Cathode
1 ch
2 ch
1 ch
2 ch
This LDP block diagram is 2ch drive for backlight of 65inch model.
4ch drive is for 75 inch models have 4ch and HX950Z have 8ch. The
number of channels and VLED voltage are different by the LCD panels.
( only TH-65GX6##, 65GX750D/W, TX/TH-75GX**
TH-55/65HX950Z, 65HX750W, TX/TH-75HX** )
<A+P+LDP>
32/64V
(TNPA6374)
(TNPA6375)

(T-CON)
REG
16V
STB5V
16V
IC7500
Power
IC
HO
LO
PFC
IC
IC7301
Power
IC
HO
LO
< P >
A
25
Power Board Structure -3 ( A+P Board )
EVDD_ON (BL-ON)
( GZ/HZ series (except 65GZ2000/65HZ2000) )
panel23V
12V
P
REG
OLED
There is no drive circuit for backlight
22V/23V
TV_SUB-ON
P2
P3
(TNPA7067/7080/7194)
Z
Z08
A02A
24V
Audio24V
3.3V
Z Board is only for
55GZ2000/55HZ2000
<A+P+(Z)>

PB
(T-CON)
REG
16V
STB5V
16V
IC7500
Power
IC
HO
LO
PFC
IC
IC7301
Power
IC
HO
LO
A
26
EVDD_ON (BL-ON)
panel23V
P
REG
There is no drive circuit for backlight
23V
TV_SUB-ON
P2
PB5
Z
Z08
A02A
24V
Audio24V
3.3V
< P + PB >
Power Board Structure -4 ( A+P+PB Board )
( only 65GZ2000/65HZ2000 )
OLED
P6
PB6
(TNPA7070)
(TNPA7069)
12V
PB4
<A+P+PB+Z>

27
3-2. Stand by / Start up Operation
*1) The main difference from FX/FZ series is power IC for Stand by,
from IC5000 to IC8902 and 5290. (operation-4)
Only TX/TC-GX7##, TH-GX6## are same as FX series.
*2) The explanation is for the case of “A+P”, but “A+P+LDP” cases are basically
same start up operation.
*3) OLED models are also same start up operation.
The difference between OLED and LCD/LED is as below,
Item LCD/LED model OLED mode
Output voltage to Panel VLED 23V
Control signal name for Backlight/Panel BL_ON EVDD_ON

P
LED
Drive
P3
P2
9
TV_SUB_ON
BL_ON
14
1 - 4
10 POWER_ON
64V(*)
Output
16V
Output
STB5V
Output
(Ex. TNPA6699** )
LCD Module
A
T-CON
board
LCD Panel
STB3.3V
F15V
PNL12V
A16
44 - 51
12V
3.3V
5V
1.5V
1.0V
3.3V
PNL12V
9
10
14
(*)The DC level is different by the LCD panel. 28
A02
Voltage Distribution ( A+P Boards )
Ex. TX-55/49GX9##, **HX900 / TH-55/49GX8##/7##, **HX800
(Each models are different pin allocation but operation is same.)
VLED
ex.110V(*)
1-8
10-13
16V
STB5V
7 7
Up
convert
1 - 4
<A+P>
1.2V/1.0V STB1.2V
GK POWER
Switch

P
GK
A
LCD Module
Power
For
LED
(Back
Light)
T-CON
board
LCD Panel
A02
A16 44 - 51
STB5V
F15V
P3
Transformer
T7301
Q7421/22
PFC
T7202
IC7201
DC/DC
IC7301
P2
Q7805/06
7
ex.64V(*)
Output
16V
Output
1
4
PNL12V
16V
STB5V
3
9
TV_SUB_ON
5
BL_ON
14
2
LED
Drive
IC7800
1 - 4
L7851/ Q7851
/IC7860
DC/DC
IC7491
POWER
Switch
When the TV is plugged in, the power board outputs 5V for standby voltage.
When the power supply receives the TV_SUB_ON signal, it outputs 2 different voltages:
16V to the A board on pins 1, 2, 3 and 4 of connector P2.
64V(*) to the LED backlight drive part.
After A board is ready to display, it outputs Backlight_on command to P board.
P board output 110V(*) to the backlight of LCD panel on pins 3 and 7 of connecter P3
10
POWER_ON KEY3
6(light)
2
ex.64V(*)
29
Start up Operation-1
(DC/DC) 6(light)
VLED
(ex.110V*)
(*)The DC level is different
by the LCD panel.
7
9
14
1 - 4
10
3
<A+P>
10-13
1-8
( TNPH1204** )
Ex. TX-55/49GX9##, **HX900 / TH-55/49GX8##/7##, **HX800 (Each models are different pin allocation but operation is same.)

P
IC7491
IC7301
1
Start Vcc
15
11
T7301
Q7351
Q7361
10
D7104/05
R7104/05
9
16V
4
PC7301
feedback
2
3
STB5V
PC7303
IC7401
EN
VH
VCC
HO
LO
FB
64V(*)
Q7805/06
7
P2
D7102/03
Rectifier
T7201
D7251
C7255
VCC
Q7421/22
D7421
C7423
( Through )
( OFF )
( OFF )
< from AC plug in to : P board >
1
PFC
IC7201
7
1 - 4
13
30
( OFF )
( PFC = OFF
AC100V: 140V
AC240V: 330V)
D7431
C7433
PFS
14
LED
Drive
IC7800
P3
Anode
Cathode8
Tr
Tr
10-13
1
:
:
8
SRV-5V
<A+P>
( TNPA6699** )
Cathode1
Ex. TX-55/49GX9##, **HX900 / TH-55/49GX8##/7##, **HX800

When the TV is plugged in, the rectifier start to produce DC voltage which leads
through PFC circuit directly to the power switches Q7351, Q7352. (PFC circuit
IC7201 does not operate at this moment.) Besides this DC voltage is provided also for
D7104, D7105 which provide start voltage to pin 1 of power supply IC 7301. When
the voltage on pin 1 rise up to predefined value IC7301 starts supplyinng of switching
pulses for Q7351, Q7352. Due to this current starts to lead through winding of T7301
which starts to generate output voltages. One of these voltages VCC is used for
power supplying of the IC 7301 to its pin 10
When the power supply starts up, the 16V is providing by D7421/C7423. This
voltage leads to IC7491, which is 5 volts DCDC converter.
This voltage (STB5V) is provided to A board via connector P2 pin7. So if the TV is
plugged in, STB5V is provided to A board without trigger signal.
< from AC plug in to : P board >
1
31
Start up Operation-3 <A+P>

A
P
P2 A02
5VS STB5V IC8202 STB1.2V
K
A02 K10
REMOTE
LED
20 3
KEY3
1.2V
1.05V
7
7
3.3V
IC7405
24 7
LED_on
OFF
(It can receive only Power SW)
Standby
(It can receive Power SW, Remote, Viera Link and so on)
North America Power LED: OFF
Except North America Power LED: OFF Power LED: RED
Power SW on
POWER
Switch
10
10
( Automatically )
32
(Each models are different pin allocation but operation is same.)
IC5290
STB3.3V
STB3.3V
STB1.05V
LCD_TV_SUB_ON
IC8000
SoC
Signal
Processing
9 9
2
< from to : A board >
1
Ex. TX-55/49GX9##, **HX900 / TH-55/49GX8##/7##, **HX800

The STB5V from pin7 of connector P2 is applied to the Power IC(IC8202, 5290) for
supplying power to the Main CPU (IC8000) on the A board. The IC8202 converts the STB5V
to STB1.2V and STB1.05V and IC5290 converts the STB5V to STB3.3V. These voltages
energize and prepare the microprocessor (CPU) for program execution. The STB3.3V is also
applied to the remote control receiver and the power LED on the K board through connector
A02/K10.
When the Power Switch on, the key3 signal is grounded. (#1)
The IC8000 lights on the RED LED and is ready to power on the TV by receiving the Power
switch on, Remote on, Viera Link and so on. This is a standby state.
(#1)Only North America model: Power switch on is no need, automatically this procedure is operated after the TV
is plugged in. But the RED LED does not light.
When the power on command from the power switch, the remote control and so on is
provided to IC8000, IC8000 first outputs the “TV_SUB_ON” command. The “TV_SUB_ON”
command is provided to power board via pin 9 of connector P2.
(*) Just after transition to Stand-by mode, the TV_SUB_ON(16V) output for a while.
2
< from to : A board >
1
33

IC7491
( TNPA6699** )
IC7301
1
Start Vcc
15
11
T7301
Q7351
Q7361
10
Q7301
PC7302
L=ON
16V
4
PC7301
feedback
2
3
STB5V
PC7303
IC7401 EN
VH
VCC
HO
LO
FB
64V(*)
Q7402
7
9
16V
P2
SUB-ON
VCC
Standby/ON
Switch
PFC
IC7201 Q7251
T7201
8
7
VCC
1 - 4
BL-ON
L7851
34
Vcc
( PFC = ON
AC100V: 380V
AC240V: 380V)
SRV-16V
SRV-VLED
SRV-5V
(*)The DC level is different by the LCD panel.
Q7851
3
STB
PWM
9
PFS
< from to : P/LD board >
2 3
LED
Drive
IC7800
P
Q7404
Q7302
<A+P>
D7104/05
R7104/05
D7102/03
Rectifier
D7251
C7255
D7431
C7433
Q7805/06
Q7421/22
D7421
C7423
Anode
Cathode8
Tr
Tr
10-13
1
:
:
8
Cathode1
Q7804
14
13,16
Ex. TX-55/49GX9##, **HX900 / TH-55/49GX8##/7##, **HX800

When the power board receives the TV_SUB_ON signal from IC8000 via pin 9 of
connector P2, it outputs 2 different voltages:
16V to the A board on pins 1, 2, 3 and 4 of connector P2.
64V(*) to the LED drive part.
TV_SUB_ON command is carried to the primary side by PC7302. This voltage is leaded
to Q7301 which provide power supply VCC of PFC circuit. The PFC starts to operate.
Besides this voltage to go to Q7302 whcih provide the mode change signal to pin 3 of
IC7301. The operation of the IC 7301 changes the switching frequency from standby
state to working state because of providing high power current.
Output voltages from transformer T7301 start rising up until the moment when IC7401
started to operate. This IC measures the 16V line output in the secondary side. The
output of this IC is provided by PC7301 to pin 4 of IC7301. IC7301 adjust the switching
frequency by this feedback signal.
The TV_SUB_ON signal also switches on the Q7402/04/21/22 to provide output
voltages (16V and 64V(*) ). The 64V(*) is provided to the LED Backlight Drive. The 16V
is provided to the A board.
2
< from to : P board >
3
35
<A+P>
(*OLED) GZ/HZ series : The VCC of PFC also go to IC7500on P/PB board. This power
IC start working after coming the EVDD_ON signal.

P
A
P2 A02
Q7421/22
9
1
2
3
4
Q7805
/06
16V
Output
Transformer
T7301
PFC
T7202
IC7201
DC/DC
IC7301
16V
DC/DC
IC7491
36
10-13
P3
IC7800
DCDC LED
Drive
64V(*)
Output
< : A board (SUB voltage) >
3
16V
9
1
2
3
4
<A+P>
3.3V
1.8V
IC5705
1.0V
F15V
IC8200
VCCK1.0V
SUB3.3V
TU1.8V
DCDCEN
SUB5V
F15V
IC5000
Reset
IC8000
SoC
STB1.2V
IC5200
IC8202
Power IC
IC5290
STB3.3V
5.0V
IC5220
STB1.0V
STB3.3V
GPU1.0V
PMIC5.3
/SUB5.3V
1.0V
IC8201
LCD_TV_SUB_ON
SRV-16V
7 7 STB5V
( TNPA6699** )
( TNPH1204** )
64V(*)
VLED (*)110V
Ex. TX-55/49GX9##, **HX900 / TH-55/49GX8##/7##, **HX800

The 16V(F15V) from the P board via pin1-4 of connector A02 is applied to the Power ICs
(Voltage regulators) on the A board to generate the SUB-Voltages used for signal processing
operation.
: SUB1.0V, 1.8V, 3.3V, 5V and 5.3V
Each voltage regulators start up by high state of DCDCEN signal which is pull up to F15V.
So F15V is provided to A board, each SUB-voltage regulator ICs start output.
< : A board (SUB voltage) >
3
37

P
A
P2 A02
Q7421/22
9
Q7805
/06
64V(*)
16V
Output
Transformer
T7301
1-8
LCD Module T-CON
PFC
T7202
IC7201
DC/DC
IC7301
Back Light
16V
DC/DC
IC7491
38
10-13
P3
7
15
IC7800
DCDC LED
Drive
< and : A board (PNL voltage) >
4 5
14
64V(*)
Output
16V
1
2
3
4
9
7
15
14
13,16
1
2
3
4
<A+P>
3.3V
1.8V
IC5705
1.0V
F15V
IC8200
VCCK1.0V
SUB3.3V
TU1.8V
LCD_TV_SUB_ON
DCDCEN
Panel_VCC_ON
A16
44 - 51
BL_ON
PNL12V
F15V
SUB5V
F15V
IC5000
Reset
IC8000
SoC
STB5V
BL_SOS
IC5260
STB1.2V
PWM1,2
IC5200
12V
IC8202
Power IC
IC5290
STB3.3V
5.0V
IC5220
STB1.0V
STB3.3V
GPU1.0V
PMIC5.3
/SUB5.3V
1.0V
IC8201
( TNPA6699** )
( TNPH1204** )
VLED (*)110V
13,16
SRV-PNL12V
Ex. TX-55/49GX9##, **HX900 / TH-55/49GX8##/7##, **HX800

The F15V is also used to generate the PNL-Voltage on A board. IC8000 outputs the
Panel VCC On signal. IC5260 starts generating the PNL12V by this signal. The PNL12V
is provided to T-con circuit of the LCD Module.
< and : A board (PNL voltage) >
4 5
39
After that, IC8000 outputs the BL_ON command to the P board. That command turns on
the IC7800 for LED backlight drive. Then the 64V rise up over 110V(*) and output to the
backlight on the LCD panel. The backlight starts lighting by PWM signals, and LCD panel
displays the pictures.
If the backlight drive circuit does not work normally, the BL_SOS signal is informed to the
IC8000. At that time, IC8000 stops outputting the TV_SUB_ON signal and blinks the red
LED 1 times.
< : P board ( backlight drive ) >
6
<A+P>
(*OLED) GZ/HZ series : IC8000 outputs EVDD_ON (instead of BL_ON) command to
P/PB board. That command turns on the IC7500. It provides panel 23V to the T-CON
board. The T-CON board starts operation for OLED panel.

IC7491
IC7301
1
Start Vcc
15
11
T7301
Q7351
Q7361
10
Q7301
PC7302
L=ON
16V
4
PC7301
feedback
2
3
STB5V
PC7303
IC7401
EN
VH
VCC
HO
LO
FB
64V(*)
Q7402
7
9
16V
P2
SUB-ON
VCC
Standby/ON
Switch
PFC
IC7201 Q7251
T7201
8
7
VCC
1 - 4
BL-ON
L7851
40
Vcc
( PFC = ON
AC100V: 380V
AC240V: 380V)
SRV-16V
SRV-VLED
SRV-5V
Q7851
3
STB
PWM
9
PFS
14
P
Q7404
Q7302
LED
Drive
IC7800
< : P board ( backlight drive ) >
6
<A+P>
( TNPA6699** )
D7104/05
R7104/05
D7102/03
Rectifier
D7251
C7255
D7431
C7433
Q7805/06
Q7421/22
D7421
C7423
Anode
Cathode8
Tr
Tr
10-13
1
:
:
8
Cathode1
Q7804
13,16
110V(*)
P3
Ex. TX-55/49GX9##, **HX900 / TH-55/49GX8##/7##, **HX800

41
IC7405
IC7301
1
Start Vcc
15
11
T7302
Q7301
Q7302
10
Q7202
PC7302
L=ON
16V
4
PC7301
feedback
2
3 STB5V
PC7303
IC7401 EN
VH
VCC
HO
LO
FB
Q7401
17
19
16V
P2
SUB-ON
VCC
Standby/ON
Switch
PFC
IC7201 Q7201
Q7203
T7202
12
11
14
VCC
1 - 7
SRV-16V
SRV-5V
3
STB
9
PGS
21
P
Q7414
Q7315
D7104/05
R7104/05
D7102/03
Rectifier
D7203/09
C7213/41
Q7403/05
D7416/18
C7424/92
EVDD_ON
(BL-ON)
T7501 SRV-panel23V
8-15
PC7501
IC7500
15
11
Q7501
Q7502
10
4
PC7500
feedback
VCC
HO
LO
FB
VCC
P3
SRV-Audio24V
D7468
C7427
26-28
Q7425-27
only GZ2000
Reference (OLED): Start up Operation-12
< : P board ( OLED ) >
6
<A+P+(PB)> OLED
IC7551
IC7550
Q7551-54
Q7503
#) only 65GZ2000/65HZ2000
separated to P+PB board

Simple Power On Sequence (Difference of LED and OLED models)
Power SW on / Remote on
< Display start >
( Plug in )
42
Power Off
Standby
Power On
16V / 64V(*) /23V(OLED) output / PFC circuit start working
TV_SUB_ON signal
STB5V output
Stop 16V / 64V(*)
PNL12V output
PANEL_VCC_ON signal
Power LED Green
Stop 16V / 64V(*)
Power LED off
TV_SUB_OFF TV_SUB_OFF
AC Plug in
STB5V (form P to A)
16V (from P to A)
PNL12V (from A to Panel(T-CON) )
SUB_ON (from A to P)
Power LED
Panel_Vcc_ON (from A to Panel(TCON))
VLED (from P to Panel(Backlight) )
BL_ON/EVDD_ON (from A to P/LDP/PB)
(Standby)
Power on
(Standby)
Power on
Power on
North America :
(Power LED Green RED)
(Power LED Red OFF)
(Power Off no exist)
Also 16V is necessary before Power LED.
Standby / Power on
5V
16V
12V
ex.64V(*)
VLED,
ex. 110V
64V(*) up to VLED
BL_ON_ON signal
< GX/GZ series >
Power LED Red
(*) The DC level is different by the LCD panel.
< Display start >
23V output
EVDD_ON_ON signal
GZ/HZ
GX/HX
GX/HX
23V (from P/PB to Panel(T-CON))
GZ/HZ
23V
output to T-CON
< HX/HZ series >

43
3-3. SOS Protection Circuit

Blinking Time
Estimated
Defect Board
Model name
Detect content
MT5812#
(TX-GX7##/
TC-GX7##/
TH-GX6##)
MT5813Q
(TX-GX8##/9##/
TC-GX800/
TH-GX7##/800)
MT5813P
(TX-75GX###/
TC-75GX###/
TH-**GX850/880/900)
MT5813P
(all GZ series)
---
MT5813Q
(TX-HX8##/90#/
TH-HX7##/800)
MT5813P
(TX-**HX94#/97#
TH-**HX880/900)
MT5813P
(all HZ series)
BL_SOS (LED driver)
EVDD_SOS (OLED panel power)
1 1 1 1
Panel/
P/LDP/PB
OLED Panel (TCON) SOS --- --- --- 2 Panel/A
Power Management IC SOS (IC8202)
*new from 2019
--- 5 5 5 A
No voltage SUB3.3V
(after wake up once)
7 7 7 7 A
Audio amplifier: SOUND_SOS
9 9 9 9
A/speaker
(only GZ2000)
Z/P/Speaker
FRC_SOS (IC9000) --- --- 10 10 A
Emergency SOS 13 13 13 13 A
44
When an abnormality occurs in the unit, the “SOS Detect” circuit is triggered and the TV shuts down.
Shut down means that the unit turns off the TV_SUB_ON signal. The power LED on the front panel will
flash a pattern indicating the circuit area that has detected an abnormality.
LED Blinking Summary
OLED

P
A
A02
IC5000
IC8000
5V
IC8200
3.3V
3.3V
1.8V
IC5705
1.0V
HDMI3.3V
SUB1.0V
SUB3.3V
TU1.8V
DCDCEN
Panel_VCC_ON
A16
LCD Module
PNL12V
Low
voltage
detect
IC3400
AMP
Over voltage
protection
F15V
SOUND_SOS
SUB5V
T-CON
(OFF)
(OFF)
ON OFF
9 Blink
1 Blink
7 Blink
detect
(OFF)
N OFF
Back Light
45
IC5260
IC5220
IC4506
IC5200
12V
P2
16V
Output
Transformer
T7301
PFC
T7202
IC7201
DC/DC
IC7301
16V
P3
16V BL_SOS
BL_ON
9
14
LCD_TV_SUB_ON
15
Tr
44 - 51
64V(*)
64V(*)
Output
1
2
3
4
9
14
15
1
2
3
4
IC7800
LED
DC/DC Drive
<Protection Circuit>
N SOS
N SOS
SOS Detect Circuit and Power Flow for (A+P) type <A+P>
IC8202
Power IC SUB5.3V
GPU1.0V
Power IC_SOS
F15V
( TNPA6699** )
1-8
10-13
VLED (*)110V
Q7421/22
Q7805
/06
Ex. TX-55/49GX9##, HX900/
TH-55/49GX8##/7##, HX800

LDP
P
A
A02
IC5000
IC8000
5V
IC8103
3.3V
3.3V
1.8V
IC5704
1.0V
F15V
HDMI3.3V
SUB1.0V
SUB3.3V
TU1.8V
DCDCEN
Panel_VCC_ON
A16
LCD Module
PNL12V
Low
voltage
detect
Over voltage
protection
F15V
SOUND_SOS
SUB5V
T-CON
(OFF)
(OFF)
ON OFF
9 Blink
1 Blink
7 Blink
detect
(OFF)
N OFF
Back Light
IC5260
IC5230
IC4506
IC5200
12V
P2
Q7403/05
16V
Output
Transformer
T7301
PFC
T7202
IC7201
DC/DC
IC7301
16V
IC7800
LED
DC/DC Drive
( Ex. TNPA6374** )
9
LCD_TV_SUB_ON
Ex. 65GX600* series
44 - 51
VLED1/2(*)
64V(*)
Q7402
/04
64V(*)
Output
1
2
3
4
9
14
15
1
2
3
4
LDP3
(Ex. TNPA6375**)
LDP5/LDP6
1 3
BL_ON
3
BL_SOS
Tr 4
16V
13
1
5,6
19,20
LDP2
N SOS
N SOS
46
IC3400
DSP/AMP
SOS Detect Circuit and Power Flow for (A+P+LDP) type <A+P+LDP>

A
A02
IC5000
IC8000
10
F15V
Panel_VCC_ON
A16
OLED Module
PNL12V
Low
voltage
detect
IC3800/01
AMP
Over voltage
protection
F15V-AD
SOUND_SOS
T-CON
(OFF)
(OFF)
ON OFF
9 Blink
7 Blink
detect
(OFF)
N OFF
N SOS
47
IC5260
12V
P P2
1
-
7
Q7403/05
16V
Output
Transformer
T7301
PFC
T7205/
T7206
IC7201
DC/DC
IC7301
16V
( TNPA7080**)
19
LCD_TV_SUB_ON
DC/DC
IC7500
1
-
5
A02
21
P3
8 - 15
DC/DC
IC7405
STB5V 17 8
20 - 22
CN6
CN11
CN5
32 40
2 Blink
1 Blink
Tr
Q4012
EVDD
_DET
Error
_DET
N SOS
N SOS
EVDD_ON IC9000
15
Ex. GZ1500/1000/950
41
SOS Detect Circuit and Power Flow for OLED (GZ1500/1000/950) <A+P> OLED
5V
IC8200
3.3V
3.3V
1.8V
IC5705
1.0V
HDMI3.3V
SUB1.0V
SUB3.3V
TU1.8V
SUB5V
IC5220
IC4506
IC5200
IC8202
Power IC SUB5.3V
GPU1.0V
DCDCEN
Power IC_SOS
23V
23V
Output
EVDD_DET
Error_DET
=panel 23V
=PNL12V(or power in T-CON) error
( TNPH1207**)

A
A02
IC5000
IC8000
17
F15V
Panel_VCC_ON
A16
OLED Module
PNL12V
Low
voltage
detect
IC3800/01
AMP
Over voltage
protection
F15V-AD
SOUND_SOS
T-CON
(OFF)
(OFF)
ON OFF
9 Blink
7 Blink
detect
(OFF)
N OFF
N SOS
48
IC5260
12V
P P2
1
-
7
Q7403/05
16V
Output
Transformer
T7301
PFC
T7205/
T7206
IC7201
DC/DC
IC7301
16V
( TNPA7067**
/TNPA7194**)
19
LCD_TV_SUB_ON
DC/DC
IC7500
or7551
6
-
11
A02
21
P3
8 - 15
DC/DC
IC7405
STB5V 17 15
1 - 3
CN6
CN11
CN5
32 40
2 Blink
1 Blink
Tr
Q4012
EVDD
_DET
Error
_DET
N SOS
N SOS
EVDD_ON IC9000
23
41
SOS Detect Circuit and Power Flow for OLED (HZ1500/1000/980) <A+P> OLED
5V
IC8200
3.3V
3.3V
1.8V
IC5705
1.0V
HDMI3.3V
SUB1.0V
SUB3.3V
TU1.8V
SUB5V
IC5220
IC4506
IC5200
IC8202
Power IC SUB5.3V
GPU1.0V
DCDCEN
Power IC_SOS
23V
23V
Output
EVDD_DET
Error_DET
=panel 23V
Ex. HZ1500/1000/980
( TNPH1221**)

A
Z
IC5000
IC8000
14
F15V
Panel_VCC_ON
A16
PNL12V
Low
voltage
detect
Over voltage
protection
(OFF)
ON OFF
detect
(OFF)
N OFF
N SOS
49
IC5260
12V
P
P2
Q7403/05
16V
Output
Transformer
T7301
PFC
T7205/
T7206
IC7201
DC/DC
IC7301
16V
( TNPA7080**)
DC/DC
IC7500
23V
Output
A02A
P3
8 - 15
DC/DC
IC7405
STB5V 12
24 - 26 32 40
2 Blink
1 Blink
Tr
Q4012
N SOS
EVDD_DET
Error_DET
=panel 23V
only 55GZ2000/
55HZ2000
41
5V
IC8200
3.3V
3.3V
1.8V
IC5705
1.0V
HDMI3.3V
SUB1.0V
SUB3.3V
TU1.8V
SUB5V
IC5220
IC4506
IC5200
IC8202
Power IC SUB5.3V
GPU1.0V
DCDCEN
Power IC_SOS
5
-
9
EVDD_ON IC9000
19
23V
1
-
7
19
21
17
Z08
1
3
24V
Output
26-28
24V
Audio
AMP DSP
7 - 9
Z13
(OFF)
9 Blink
7 Blink
LCD_TV_SUB_ON
1
A13
15
A02A
SOUND_SOS
N SOS
6
OLED Module
T-CON
CN6
CN11
CN5
EVDD
_DET
Error
_DET
SOS Detect Circuit and Power Flow for 55GZ2000/55HZ2000 <A+P+Z> OLED
( TNPH1207**)

A
IC5000
IC8000
14
F15V
Panel_VCC_ON
A16
PNL12V
Low
voltage
detect
Over voltage
protection
(OFF)
(OFF)
ON OFF
9 Blink
7 Blink
detect
(OFF)
N OFF
N SOS
50
IC5260
12V
P
P2
18
-
22
Q7403/05
16V
Output
Transformer
T7301
PFC
T7205/
T7206
IC7201
DC/DC
IC7301
16V
( TNPA7069**)
13
DC/DC
IC7500
23V
Output
PB
A02A
PB4
PB5
8 - 15
DC/DC
IC7405
STB5V
( TNPA7070**)
15 12
24 - 26 32 40
2 Blink
1 Blink
Tr
Q4012
N SOS
N SOS
PB6
P6
41
5V
IC8200
3.3V
3.3V
1.8V
IC5705
1.0V
HDMI3.3V
SUB1.0V
SUB3.3V
TU1.8V
SUB5V
IC5220
IC4506
IC5200
IC8202
Power IC SUB5.3V
GPU1.0V
DCDCEN
Power IC_SOS
5
-
9
24V
Output 24V
23V
EVDD_ON IC9000
19
1
1
3 - 5
Z
Z08
1
3
Audio
AMP DSP
7 - 9
Z13 A13
15
A02A
LCD_TV_SUB_ON
SOUND_SOS
6
EVDD_DET
Error_DET
=panel 23V
OLED Module
T-CON
CN6
CN11
CN5
EVDD
_DET
Error
_DET
SOS Detect Circuit and Power Flow for 65GZ2000/65HZ2000 <A+P+PB+Z> OLED
( TNPH1207**
TNPH1223**)
only 65GZ2000/
65HZ2000

51
3-4. Troubleshoot of Power Problem

P
T7301
16V
Q7805/06
Q7404
P3
16V
P2
SUB-ON
Q7421/22
BL-ON
Vcc
SRV-16V
PWM
L7851
Anode
SRV-VLED
Q7851
Cathode1
1
8
A
A02
IC8000
SoC
13
14
15
LCD Module
T-CON
board
LCD Panel
1 - 4 1 - 4
BL_SOS
SUB-ON
Tr
(Low=Normal)
Back
light
9
LED
Drive
IC7800
Q7887
Q7888
BL-ON
PWM
110V(*)
52
D7431
C7433
D7421
C7423
13
14
15
9
LED blinks Detail error Board may defect
1 BL_SOS (LED driver) Panel / P
If the IC7800 detects
1.abnormal current of backlight LEDs ( = Backlight LED broken or Low(No) VLED voltage )
2.abnormal DC/DC power supply of IC7800 (does not rise up the VLED voltage )
or the IC7800 does not work (No Vcc or No BL_ON/PWM signal or defect itself),
the IC7800 output BL_SOS signal to IC8000 LED blink 1 time.
(*)VLED : The DC level is different by the LCD panel.
Troubleshooting for LED 1 Time Blinking for (A+P) type -1 <A+P>
64V(*)
Q7804
( TNPA6699** )
10-13
2
:
7
Cathode8
Ex. TX-55/49GX9##, **HX900 / TH-55/49GX8##/7##, **HX800

53
(*)VLED : The DC level is different by the model (LCD panel).
(Power off)
Disconnect P3 connectors.
Short check between each
Pin1-8 of P3 and GND.
One of them
shorted
NG
OK
over100V(*)
P board
Connect P3 connector.
Power on.
Check if the voltage
of SRV-VLED(pin10-13 of P3)
before LED 1 blink?
All
OK
Panel Module
Panel Module
Shorted
OK
Short check Q7851
between Source and Drain.
P board
Troubleshooting for LED 1 Time Blinking for (A+P) type -2 <A+P>
(P board: TNPA6699**)
SRV-VLED
Q7851
S
D
G
P3
Ex. TX-55/49GX9##, **HX900 / TH-55/49GX8##/7##, **HX800

P
LDP
( TNPA6374** )
T7301
16V
64V(*)
Q7402/04
Q7414
LDP6
16V
P2
SUB-ON
Q7403/05
L7813 Anode2
Cathode2
Vcc
SRV-16V
SRV-64V
SRV-VLED2
Q7801
D7412/16
C7424
D7403/06
C7422/23
L7814
Anode1
SRV-VLED1
Q7804
Cathode1
1
1
3
3
P2
19,
20
A
A02
IC8000
SoC
LCD Module
T-CON
board
LCD Panel
1 - 4
13
14
15
9
BL_SOS
SUB-ON
( TNPA6375** )
Tr
(Low=Normal)
LDP3
5,
6
Back
light
9
1 BL_SOS (LED driver) Panel / LDP / P
If the IC7800 detects
1.abnormal current of backlight LEDs ( = Backlight LED broken or Low(No) VLED voltage )
2.abnormal DC/DC power supply of IC7800 (does not rise up the VLED voltage )
or the IC7800 does not work (No Vcc or No BL_ON/PWM signal or defect itself),
the IC7800 output BL_SOS signal to IC800 LED blink 1 time.
LED
Drive
IC7800
Q7802
Q7803
BL-ON
PWM
Ex. 65GX600* series VLED1(*)
VLED2(*)
54
LDP5
LDP2
4
3
2
1 - 4
13 1
Troubleshooting for LED 1 Time Blinking for (A+P+LDP) type -1 <A+P+LDP>
SRV-64V

55
(Power off)
Disconnect LDP5 and LDP6
connectors. Short check between
pin3 of LDP5 and GND,
pin3 of LDP6 and GND.
NG NG
Both OK
LDP board
Connect LDP5 and LDP6
connectors. Power on.
of SRV-VLED1, VLED2 (pin 1 of
LDP5/LDP6) before LED 1 blink?
ALL OK
NG
OK
64V(*)
P board
Panel Module
LDP board
Shorted
OK
Short check between SRV-
VLED1, VLED2 and GND
Panel Module
Power on.
of SRV-64V (pin 19/20 of P2)
before LED 1 blink?
Ex. 65GX600* series
Troubleshooting for LED 1 Time Blinking for (A+P+LDP) type -2 <A+P+LDP>

A
A02
IC8000
10
Panel_VCC_ON
A16
OLED Module
PNL12V
F15V
T-CON
ON OFF
N SOS
IC5260
12V
P
P2
1-7
Q7403/05
16V
Output
16V
23V
Output
A02
21
P3
8 - 15 20 - 22
CN5
CN8
CN6
2 Blink
1 Blink
Tr
Q4012 N SOS
EVDD_ON IC9000
15
23V
SRV-12V
1-5
N SOS
LCD_TV_SUB_ON
56
1 EVDD_SOS (OLED panel power) Panel / P / A
2 OLED Panel SOS (T-CON power) Panel / A
If the T-CON board detects
1.voltage error of 23V from P board
2.problem the power circuit in T-CON board (that is provided from PNL12V)
the error signal is output from T-CON board to A board.
1. LED blink 1 time
2. LED blink 2 time
23V
PNL12V
Troubleshooting for LED 1 and 2 Time Blinking for GZ/HZ (except GZ2000/HZ2000) -1 <A+P> OLED
41
23V
EVDD(23V)
_DET
Error(Power of TCON)
_DET
32 40
Power
IC
Power
IC
19

57
OK
OK
(3.3V)
Panel Module
NG
OK
(Power off)
Short check between
SRV-panel23V and GND.
P board
of EVDD_ON (pin 21 of P2)
just before LED blink?
Refer to the previous page block diagram.
1 time blink
(check of 23V/12V line)
2 time blink
(check of 12V line)
OK
Disconnect the A02 connector.
Check if which board is
shorted
A board
Shorted
Shorted
Disconnect P3 connector.
Check if which board is
shorted.
Power on.
of SRV-panel23V.
Is rise up before LED 1 blink?
P board
OK
Power on.
of SRV-12V.
Is rise up before LED blink?
NG
(Power off)
Short check between
SRV-12V and GND.
NG
A board
Panel Module Panel Module or
or
A board replacement : Refer to “4. Caution of Board Replacement (A Board Replacement)”
P Board
EVDD_ON
P3
P2
22.5 (panel23V)
Troubleshooting for LED 1 and 2 Time Blinking for GZ/HZ (except GZ2000/HZ2000) -2 <A+P> OLED
GZ/HZ except GZ2000/HZ2000
SRV-12V
A02
A Board (GZ1500/1000/950)
SRV-12V
A15
A Board (HZ1500/1000)

PB
A
A02A
IC8000
14
Panel_VCC_ON
A16
OLED Module
PNL12V
F15V
T-CON
ON OFF
N SOS
IC5260
12V
P
P2
1-7
Q7403/05
16V
Output
16V
A02A
PB4
1
PB5
8 - 15 24 - 26
CN5
CN8
CN6
2 Blink
1 Blink
Tr
Q4012 N SOS
EVDD_ON IC9000
19
SRV-12V
5-9
N SOS
LCD_TV_SUB_ON
58
1 EVDD_SOS (OLED panel power) Panel / P / PB / A
2 OLED Panel SOS (T-CON power) Panel / A
If the T-CON board detects
1.voltage error of 23V from P or PB board
2.problem the power circuit in T-CON board (that is provided from PNL12V)
the error signal is output from T-CON board to A board.
1. LED blink 1 time
2. LED blink 2 time
23V
PNL12V
Troubleshooting for LED 1 and 2 Time Blinking for GZ2000/HZ2000 -1 OLED
41
23V
Output
23V
23V
P3
P2
21
55inch=P board
65inch=P+PB board
<A+P+(PB)+Z>
EVDD(23V)
_DET
Error(Power of TCON)
_DET
32 40
Power
IC
Power
IC
15

59
OK
OK
(3.3V)
Panel Module
NG
OK
(Power off)
Short check between
SRV-panel23V(PB or P)
and GND.
PB(65inch) / P(55inch)
board
of EVDD_ON
(pin 1 of PB4 or pin21 of P2)
just before LED blink?
Refer to the previous page block diagram.
Troubleshooting for LED 1 and 2 Time Blinking for GZ2000/HZ2000 -2 <A+P+(PB)+Z> OLED
1 time blink
(check of 23V/12V line)
2 time blink
(check of 12V line)
OK
Disconnect the A02A connector.
Check if which board is shorted
(Tcon or A)
A board
Shorted
Shorted
GZ2000/HZ2000
Disconnect PB5/P3
connector. Check if which
board is shorted.
(Tcon or PB/P)
Power on.
of SRV-panel23V.
Is rise up before LED 1 blink?
PB(65inch) / P(55inch)
board
OK
Power on.
of SRV-12V.
Is rise up before LED blink?
NG
(Power off)
Short check between
SRV-12V and GND.
NG
A board
Panel Module Panel Module or
or
SRV-12V
A02A
A Board
PB Board (65inch)
PB4
PB5
SRV-panel23V
EVDD_ON
P Board (55inch)
EVDD_ON
P3
P2
22.5 (panel23V)

5 Power Management IC SOS (IC8202) A (IC8202)
7 No voltage SUB3.3V detected A
10 (*) FRC_SOS (Initialization of IC9000) A (IC9000)
13 Emergency SOS A ( eMMC / Nand Flash )
IN THESE CASES, A BOARD DEFECTS
60
Troubleshooting for LED Blinking ( 5/7/10/13 time blink )
5 blinks is problem about initialization(communication) of Power IC (IC8202)
7 blinks is problem about the power line of SUB3.3V.
10 blinks is problem about initialization of FRC IC (IC9000).
13 blinks is problem about IC8000 and software issue.
(mostly case the memory (eMMC / NAND Flash) IC problem )
Refer to “4. Caution of Board Replacement (A Board Replacement)”
(*) Only TX-75GX###,TC-75GX###, TH-**GX850/880/900
TX-**HX94#/97#, TH-**HX880/900

Yes
(9 time blinks)
No
(Power on)
9 Audio amplifier: SOUND_SOS A/Speaker
Audio amplifier is sourced power F15V from P board. If the amplifier work abnormally (may due
to short-circuit or overload), the SOUND_SOS signal will go low level and be detected by
IC8000 LED blinks 9 times.
Remove A12 connecter.
Power on.
Does LED blinks again?
L/R speaker
(wire of speaker)
A board
A
A02
IC8000
IC3400/
3800/01/02
AMP
F15V SOUND_SOS
9 Blink
N SOS
A12
16V
From
P BOARD
61
Troubleshooting for LED Blinking ( 9 time blink , except GZ2000/HZ2000)
1
-
4
Ex. TX-55/49GX9##, **HX900 / TH-55/49GX8##/7##, **HX800

A
A02A IC8000
F15V SOUND_SOS
9 Blink
N SOS
A13
16V
From
P BOARD
62
5
-
9
Z
Z08
IC1100
AMP
Z20/Z21
3
Z13
16V
From
P BOARD
IC1101
AMP
IC1102
AMP
IC1103
AMP
1
3.3V
23V
IC1104
12V
7
-
9
only GZ2000/HZ2000
1
15
6
sound23V
9 Audio amplifier: SOUND_SOS Z/P/Speaker
Audio amplifier is sourced power 23V and F15V from P board. If the amplifier work abnormally
(may due to short-circuit or overload), the SOUND_SOS signal will go low level and be detected
by IC8000 LED blinks 9 times.
Troubleshooting for LED Blinking ( 9 time blink , GZ2000/HZ2000)
Yes
(9 time blinks)
No
(Power on)
Remove Z20 and Z21
connecter.
Power on.
check speaker
one by one
(wire of speaker)
A board
No
(Power on)
Remove Z08 and Z13
connecter.
Power on.
Z board
Z08
Z13
Z20
Yes
(9 time blinks)
Z21
P board
Yes
(other blinks)
12V
OLED

Lit
(sound is OK)
No change
(LED keep lit)
LED blink (except TC- model)
LED off (TC- model)
Try the “LCD Panel
Test Mode”
(refer to P.16,17)
Check if the Backlight is lit.
(open the back cover and
check from back side)
No lit
(no TV
sound)
Disconnect A15or16or19
connecter(FFC cable to T-
con of Panel). Check if
voltage SRV-12V (PNL12V)
in A board
No
Yes
(12V)
Check if voltage VLED (*)
at SRV-LED in P board
Yes
No
Replace P board
Replace LCD Panel
(Backlight part)
Replace A board
Replace A board
Replace A board
Replace LCD Panel
(T-CON part)
Is the power LED situation
changed after pushing the
button for entering Test
Mode?
If entering the test mode,
the Power LED will Blink(except TC- model)
or OFF (TC- model).
Patterns are
displayed
No Picture
(*) The voltage of VLED is different by the LCD panel.
63
Troubleshooting for No Picture and No OSD (Power LED is lit = No blinking) -1
Refer to the block diagram of “SOS Detect Circuit and Power Flow ” page
cable connection
board of LCD Panel)
LCD Module
A
IC8000
F15V
12V
IC5260
1
2
3
4
SRV-12V
A16 44-51
PNL12V
T-CON
Panel_VCC_ON
Or sound check with TV mode
< GX/HX series >
No
Picture
Green* LED
(power LED
indicator setting = On)
(*)NA/Latin=Red
A02

A
No change
(LED keep lit)
LED blink (except TC- model)
LED off (TC- model)
Disconnect CN8 connecter
on TCON board.
Check if voltage SRV-12V
(PNL12V, SRV-12V) in A
board
No
Yes
(12V)
Replace A board
Replace A board
Replace A board
Replace OLED Panel
(T-CON part)
Is the power LED situation
changed after pushing the
button for entering Test
Mode?
If entering the test mode,
the Power LED will Blink(except TC- model)
or OFF (TC- model).
From P board
No Picture
64
Troubleshooting for No Picture and No OSD (Power LED is lit = No blinking) -2
cable connection
board of OLED Panel)
OLED Module
IC8000
F15V
12V
IC5260
1
-
5
SRV-12V
A02 (GZ1500/1000/950) 20-22
PNL12V
T-CON
Panel_VCC_ON
< GZ/HZ series >
CN8
Try the “LCD Panel
Test Mode”
(refer to P.16,17)
No
Picture
(power LED
(*)NA/Latin=Red
Green* LED
5
-
9
24-26
A02A (GZ2000/HZ2000)
Refer to the block diagram of “SOS Detect Circuit and Power Flow ” page
Patterns are
displayed
OLED
6
-
11
1-3
A02 (HZ1500/1000/980)

LDP
A+P models
Troubleshooting for No Power On (Power LED is off = No blinking) -1
NG
Check if the output 16V
(SRV-16V in A board)
OK
NG
Replace A board
Check if the output of
STB5V. (Just AC input)
Disconnect A02 connecter.
Short check of STB5V line
in A board. No
Shorted
Shorted
Replace P board
Replace A board
Short check the SRV-16V
In A board. Shorted
No shorted
Replace A board
Disconnect LDP3 connecter.
Short check the SRV-16V in
P board.
Shorted
Replace P board
Replace LDP board
No shorted
< except 65GZ2000/65HZ2000 >
OK
P
A
16V
P2
A02
LDP3
65
P A
STB5V
16V
P2 A02
Both of STB5V and 16V are necessary before lighting power LED.
( refer to “Simple Power On Sequence (Difference of LED and OLED models)“)
Replace P board
STB5V
Power on check few times(*).
(because we can’t check
the power LED)
Replace K board
Power on
NG
(A+P)
No
Picture
LED off
(even if the power LED
(*) Please wait several seconds
after every pushing power button.
TH-65GX6##, 65GX750D/W,
TH-55/65HX950Z, 65HX750W,
TX/TH-75GX**, 75HX**
(A+P+LDP)
A+P+LDP models (refer to left drawing)

Troubleshooting for No Power On (Power LED is off = No blinking) -2
NG
Check if the output 16V
(SRV-16V in A board)
OK
NG
Replace A board
Check if the output of
STB5V. (just AC input)
Short check of STB5V line
in A board. No
Shorted
Shorted
Replace P board
Replace A board
Short check the SRV-16V
In A board.
Shorted
No shorted
Replace A board
< 65GZ2000/65HZ2000 >
OK
66
P A
STB5V
16V
P2 A02
Replace P board
Disconnect P6(PB4)
connecter. Power on check.
PB
Connect P6 connecter.
Power on check few times.
(because we can’t check
the power LED)
Replace K board
Power on
NG
NG
Replace PB board
Power LED lit
Wait enough time to discharge before connect P6
390V
No
Picture
LED off
(even if the power LED
(*) Please wait several seconds
after every pushing power button.
Both of STB5V and 16V are necessary before lighting power LED.
( refer to “Simple Power On Sequence (Difference of LED and OLED models)“)
OLED

“Power LED Indicator” setting
Region Product State On On (Standby Only) Off
Europe,
Asia, Oceania,
Latin(PAL)
Power ON Green
OFF 5sec after
screen display
OFF 5sec after
screen display
Standby Red or Amber Red or Amber OFF after 5sec
Power OFF OFF OFF OFF
North America
Latin(US)
Power ON Red
OFF 5sec after
screen display
OFF 5sec after
screen display
Standby
OFF or Amber
*Amber is Latin(US) only
OFF OFF
Power OFF OFF OFF OFF
Power LED State
Reference: Power LED Indicator setting (GX/GZ/HX/HZ series except TX/TC-**GX7##, TH-**GX6##)
same as previous
The Power LED can be turned off during power on state or stand-by state.
MENU – “Setup” – “Other Settings” – “Power LED Indicator”
67

4. Caution of Board Replacement
68

Be careful about the direction of the BT Antenna module when assembling to the bracket.
Fix BT Antenna module to the bracket so that the same shape marks match in order to prevent the
wrong insertion, because front side and back side are the same rectangular shape.
If fixing in the wrong direction, the Bluetooth sensitivity will be worse.
#) BT Antenna module is not exist on all models. It is integrated with WiFi/BT module on some models.
Ex. TX-49GX9##/HX9##, TH-49GX800
solder side ( mark )
antenna side ( mark )
Ex. TX-65GX9##, TH-65GX8##,
T#-55/65GZ1###
Ex. TX-40GX8##/HX8##, TH-40GX7##/HX700,
T#-55/65GZ2000/HZ2000
BT Antenna Module Replacement
NG
OK
69

If replacing A board, “ the customer (*)“ need to re-register the TV and setup.
(*)Because the Panasonic ID information is needed.
1. Unregister the old product information (need the Panasonic ID information)
access to "https://www.tvpa.panasonic.com/ , login and follow the prompts of delete
2. Need to setup from start again,
refer to Set up item in
https://av.jpn.support.panasonic.com/support/global/cs/tv/faq/vc/index.html
(reference) Panasonic ID
Panasonic ID support page
https://csapl.pcpf.panasonic.com/?Lang=en
*Language can be changed at bottom of this page.
If you forgot the Password, You can reset the password in this page.
If you would like to change or delete the Panasonic ID,
please refer the FAQ of above page ( FAQ – Change or Delete )
( https://csapl.pcpf.panasonic.com/Faq/Faq001?Lang=en )
70
A Board Replacement : case of using the Google Assistant / Alexa

If the data copy by USB Memory function can not be executed when A board replacing,
Please check the model name by Self Check screen after replacing the A board.
If the customer using the Control 4 function,
the model name should not be series name but completely same model name.
*If the data copy function was executed, the model name will be copy completely.
It is the requirement of Control4 from 2019.
If it is not same name, this function will not work.
A Board Replacement : only for Control4 supported model-1
Ex.
Original model name = TX-65GXN888
“ If ” the model name of spare part A board is
TX-65GX800E,
please rewrite the model name to
TX-65GXN888.
SELF CHECK COMPLETE
H14 TUN OK PEAKS-SOFT 3.041 MODEL ID 0b
H15 TUN2 OK PEAKS-EEP 01.07.0005 03000101
H16 TUN3 OK LSI-PACKAGE 0.014 00004000
H38 FRC OK LSI-RELEASE 1.09 MODEL NAME
H07 TEMP OK AQ-PACKAGE 0.011 TH-65GX800E
H17 LAN OK AQ-RELEASE 10010009
H00 FE OK STBY-SOFT 1.02.00
H00 SAT-TU OK STBY-EEP 1.00.33bd
H96 ID OK FRC SOFT 00001c11
H97 ID2 OK FRC DATA 00060016
H45 BT OK
H42 WIFI OK INFO-1 xxxxxxxx
H03 FAN OK INFO-2 xxxxxxxx
H71 TCON OK INFO-3 xxxxxxxx
H21 DSP OK
H93 FPGA OK
Check the Model name
*added item from 2019 model
71

FACTORY
Model name rewriting function in CS maintenance menu
1. Enter to CS Maintenance Menu:
While pressing Volume (-) key on the main unit, press “RED” button on the remote for 3 times within 2 seconds.
2. Select the “MODEL NAME” at the left bottom in CS Maintenance Menu
The edit menu and the current value are displayed on the right area.
3. Edit
Add character at the end of the display area : select character by below software keyboard and press OK on the remote,
then save the model name to TV.
Delete character at the end of the display area : press red key on the remote, then save the model name to TV.
Exit: Press the “EXIT” button on the remote.
# After editing, please confirm the MODEL NAME by self check screen again
A Board Replacement : only for Control4 supported model-2
MODEL NAME
display area
character selection area
Model name: TX-65GX800E
0 1 2 3 4 5 6 7 8 9 - / _ . +
A B C D E F G H I J K L M
N O P Q R S T U V W X Y Z
a b c d e f g h i j k l m
n o p q r s t u v w x y z
delete: red key
edit menu
72

When replacing A Board, the data in original A Board can be copied to USB Memory and then copy to new A board.
(GZ2000/HZ1500/HZ2000 only: “Space Tune Setting” is not copied.
Please set from Menu – Sound - Space Tune Setting ,Space Tune Adjustment)
< 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.
< Data copy from TV(original A board) to USB Memory > < Data copy from USB Memory to TV(new A board) >
Note: 1. Depending on the failure of boards, function does not work.
2. This function can be effective among the same model numbers.
Before replacing A Board After replacing A Board
3. Input Password
2770
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
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.
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.
73
(Reference) A Board Replacement : Data Copy by USB Memory for A Board (except TX/TC-**GX7##, TH-**GX6##)

5. Handling and Rear Cover Disassemble and Assemble
74

FACTORY
How to remove
58”, 65”
40”, 50”
Hook of BC
Hook of BC
Screw
Hole of TOP_METAL
(2)
(3)
(2)
Push up Push up
(3)
(3)
* It is hard a little.
Push up the bottom
right or left side
of the rear cover
(hit by the palm).
Rear Cover Disassemble / Assemble -1
1. Remove all screws
for rear cover.
2. Pull the bottom of rear
cover towards yourself.
3. Lift the rear cover up
and remove it.
For TX-**GX8##/7##/**HX8##, TH/TC-**GX700/HX700: How to remove back cover
75

FACTORY
1. After putting the back cover temporarily, insert the back cover hook in the
chassis frame hole at the upper right part by sliding the back cover a little,
while pressing the upper part of terminal as shown (1) in the following figure.
3. Insert six back cover hooks in the chassis frame hole at the top as shown (3)
mark by sliding the back cover.
Confirm the hooks had been surely inserted all six hooks.
(4)
(3)
(1)
(4)
(2)
hook
2. Hold down the lower part of terminal to hook as shown (2) in the figure.
5. Adjust the position of back cover so that it should be at the center.
4. Hold down two hooks at left side as shown (4) in the figure.
back view of back cover
top view of back cover
NG
Step 1
Step 2
For TX-43GX9##/HX9##, TH-43GX800 : How to fix back cover
76

FACTORY
hook
(1)
(2) (2)
(2)
(2) (2)
(2)
back view of back cover
1. Insert six back cover hooks in the chassis frame hole at the top as shown (1)
in the following figure by sliding the back cover.
Confirm the hooks had been surely inserted all six hooks.
2. Hold down six hooks as shown (2) in the figure.
3. Adjust the position of back cover so that it should be at the center.
ex. 49inch
top view of back cover
NG
Note: same procedures of FX700 series
Step 1
Step 2
For TX-49/55/65GX9##/49HX9##, TH-49/55/65GX8## : How to fix back cover
77

Bottom viewing
GZ models (except GZ2000) :
from 62 to 71mm
GZ2000: 25mm
4 screws ( 2 x M3 , 2 x M4）
5 hooks
Rear Cover Disassemble / Assemble -4 OLED
1. Remove 4 screws. Refer to above drawing.
2. Remove the bottom side of rear cover.
3. Slide the rear cover toward the top side
in order to unhook the rear cover.
4. Uplift the rear cover.
For GZ2000/HZ2000 : How to remove back cover
( Structure )
78

1. Make a little gap in the left and right bottom corner. (below picture is left bottom)
2. Insert something spatular plate into that gap.
3. Slide the spatula to the hook position and remove it by uplifting the spatula.
4. Slide to upper hook and remove it. Remove all 6 hooks and lift the rear cover.
For 55/65HX900/950 : How to remove back cover
hook
79

For 55/65HZ1000/1500 : How to remove back cover
hook
( bottom view )
( bottom view )
3. Slide the rear cover toward the left side
in order to unhook the 2 hooks of the rear cover.
1. Remove all screws.
2. Uplift the right side of rear cover.
80

Panasonic OLED-Training Manual 2020.pdf

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