Panasonic TH-55FX600M User manual

© Panasonic Corporation 2018.
ORDER NO. MTV1801180CE
LED TV
Model No. TH-55FX600M
Chassis: KM42
Destination: MIDDLE EAST
TABLE OF CONTENTS
PAGE PAGE
1 Safety Precautions----------------------------------------------- 3
1.1. General Guidelines---------------------------------------- 3
1.1.1. Leakage Current Cold Check---------------------- 3
1.1.2.
Leakage Current Hot Check (See Figure 1.) ---- 3
2 Warning -------------------------------------------------------------- 4
2.1. Prevention of Electrostatic Discharge (ESD)
to Electrostatically Sensitive (ES) Devices---------- 4
2.2. About lead free solder (PbF)---------------------------- 4
3 Service Navigation ----------------------------------------------- 5
3.1. Service Hint ------------------------------------------------- 5
4 Specifications ----------------------------------------------------- 6
5 CS Maintenance Menu ------------------------------------------ 8
5.1. How to enter into CS Maintenance Menu ----------- 8
5.1.1. Purpose ------------------------------------------------- 8
5.1.2. Key command ----------------------------------------- 8
5.1.3. How to exit---------------------------------------------- 8
5.2. Repack ------------------------------------------------------- 8
5.3. EDID Clock-------------------------------------------------- 9
5.4. USB HDD Drive Check----------------------------------- 9
5.5. White Balance Adjustment -----------------------------10
5.6. Hotel mode ------------------------------------------------ 11
5.6.1. Purpose------------------------------------------------ 11
5.6.2. Access command to the Hotel mode setup
menu --------------------------------------------------- 11
5.6.3. To exit the Hotel mode setup menu------------- 11
5.6.4. Explain the Hotel mode setup menu ----------- 11
6 Troubleshooting Guide --------------------------------------- 12
6.1. Check of the IIC bus lines------------------------------ 12
6.1.1. How to access --------------------------------------- 12
6.1.2. Screen display --------------------------------------- 12
6.2. Power LED Blinking timing chart --------------------- 12
6.3. Method of detecting SOS ------------------------------ 13
6.4. LCD Panel test mode ----------------------------------- 13
6.5. No Power--------------------------------------------------- 14
7 Disassembly and Assembly Instructions--------------- 15
7.1. Bracket Fitting -------------------------------------------- 15
7.2. PCB Fixing------------------------------------------------- 16
7.3. Metal & Speaker Fixing --------------------------------- 17
7.4. Back Cover (Screw) ------------------------------------- 18
7.5. Handling SPEC ------------------------------------------- 19

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8 Measurements and Adjustments -------------------------- 20
8.1. Voltage chart of A-board-------------------------------- 20
8.2. Voltage chart of P-board-------------------------------- 20
9 Block Diagram --------------------------------------------------- 21
9.1. Main Block Diagram ------------------------------------- 21
10 Schematic Diagram--------------------------------------------- 22
11 Printed Circuit Board ------------------------------------------ 44
12 Exploded View and Replacement Parts List ----------- 48

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1 Safety Precautions
1.1. General Guidelines
1. When servicing, observe the original lead dress. If a short circuit is found, replace all parts which have been overheated or
damaged by the short circuit.
2. After servicing, see to it that all the protective devices such as insulation barriers, insulation papers shields are properly
installed.
3. After servicing, make the following leakage current checks to prevent the customer from being exposed to shock hazards.
4. When conducting repairs and servicing, do not attempt to modify the equipment, its parts or its materials.
5. When wiring units (with cables, flexible cables or lead wires) are supplied as repair parts and only one wire or some of the
wires have been broken or disconnected, do not attempt to repair or re-wire the units. Replace the entire wiring unit instead.
6. When conducting repairs and servicing, do not twist the Faston connectors but plug them straight in or unplug them straight
out.
1.1.1. Leakage Current Cold Check
1. Unplug the AC cord and connect a jumper between the
two prongs on the plug.
2. Measure the resistance value, with an ohmmeter,
between the jumpered AC plug and each exposed
metallic cabinet part on the equipment such as
screwheads, connectors, control shafts, etc. When the
exposed metallic part has a return path to the chassis, the
reading should be 8.5Mohm to 13Mohm.
When the exposed metal does not have a return path to
the chassis, the reading must be .
1.1.2. Leakage Current Hot Check (See
Figure 1.)
1. Plug the AC cord directly into the AC outlet. Do not use
an isolation transformer for this check.
2. Connect a 1.5kohm, 10 watts resistor, in parallel with a
0.15F capacitors, between each exposed metallic part
on the set and a good earth ground such as a water pipe,
as shown in Figure 1.
3. Use an AC voltmeter, with 1000 ohms/volt or more
sensitivity, to measure the potential across the resistor.
4. Check each exposed metallic part, and measure the
voltage at each point.
5. Reverse the AC plug in the AC outlet and repeat each of
the above measurements.
6. The potential at any point should not exceed 0.75 volts
RMS. A leakage current tester (Simpson Model 229 or
equivalent) may be used to make the hot checks, leakage
current must not exceed 1/2 milliamp. In case a
measurement is outside of the limits specified, there is a
possibility of a shock hazard, and the equipment should
be repaired and rechecked before it is returned to the
customer.
Figure 1

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2Warning
2.1. Prevention of Electrostatic Discharge (ESD) to Electrostatically
Sensitive (ES) Devices
Some semiconductor (solid state) devices can be damaged easily by static electricity. Such components commonly are called
Electrostatically Sensitive (ES) Devices. Examples of typical ES devices are integrated circuits and some field-effect transistors and
semiconductor [chip] components. The following techniques should be used to help reduce the incidence of component damage
caused by electrostatic discharge (ESD).
1. Immediately before handling any semiconductor component or semiconductor-equipped assembly, drain off any ESD on your
body by touching a known earth ground. Alternatively, obtain and wear a commercially available discharging ESD wrist strap,
which should be removed for potential shock reasons prior to applying power to the unit under test.
2. After removing an electrical assembly equipped with ES devices, place the assembly on a conductive surface such as
aluminum foil, to prevent electrostatic charge buildup or exposure of the assembly.
3. Use only a grounded-tip soldering iron to solder or unsolder ES devices.
4. Use only an anti-static solder removal device. Some solder removal devices not classified as [anti-static (ESD protected)] can
generate electrical charge sufficient to damage ES devices.
5. Do not use freon-propelled chemicals. These can generate electrical charges sufficient to damage ES devices.
6. Do not remove a replacement ES device from its protective package until immediately before you are ready to install it. (Most
replacement ES devices are packaged with leads electrically shorted together by conductive foam, aluminum foil or
comparable conductive material).
7. Immediately before removing the protective material from the leads of a replacement ES device, touch the protective material
to the chassis or circuit assembly into which the device will be installed.
Caution
Be sure no power is applied to the chassis or circuit, and observe all other safety precautions.
8. Minimize bodily motions when handling unpackaged replacement ES devices. (Otherwise ham less motion such as the
brushing together of your clothes fabric or the lifting of your foot from a carpeted floor can generate static electricity (ESD)
sufficient to damage an ES device).
2.2. About lead free solder (PbF)
Note: Lead is listed as (Pb) in the periodic table of elements.
In the information below, Pb will refer to Lead solder, and PbF will refer to Lead Free Solder.
The Lead Free Solder used in our manufacturing process and discussed below is (Sn+Ag+Cu).
That is Tin (Sn), Silver (Ag) and Copper (Cu) although other types are available.
This model uses Pb Free solder in it’s manufacture due to environmental conservation issues. For service and repair work, we’d
suggest the use of Pb free solder as well, although Pb solder may be used.
PCBs manufactured using lead free solder will have the PbF within a leaf Symbol PbF stamped on the back of PCB.
Caution
• Pb free solder has a higher melting point than standard solder. Typically the melting point is 50 ~ 70 °F (30~40 °C) higher. Please
use a high temperature soldering iron and set it to 700 ± 20 °F (370 ± 10 °C).
• Pb free solder will tend to splash when heated too high (about 1100 °F or 600 °C).
If you must use Pb solder, please completely remove all of the Pb free solder on the pins or solder area before applying Pb
solder. If this is not practical, be sure to heat the Pb free solder until it melts, before applying Pb solder.
• After applying PbF solder to double layered boards, please check the component side for excess solder which may flow onto the
opposite side. (see figure below)

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3 Service Navigation
3.1. Service Hint
Board Name Main Device Remarks
A BOARD TUN, OFDM, ADV, LD4, STBY EEP Repairable
P BOARD Power Supply Repairable
K BOARD LED/RM/CATS Repairable

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4 Specifications
Dimensions (W H D) 1 240 mm 779 mm 242 mm (With Pedestal)
1 240 mm 722 mm 78 mm (TV only)
Mass 17.5 Net (With Pedestal)
17.0 Net (TV only)
Power Rating AC Auto 110-240 V, 50 / 60 Hz
Rated power consumption 163 W
Standby power consumption 0.50 W
Visible screen size (diagonal) 139 cm
Display resolution 3 840 (W) 2 160 (H)
Panel LED backlight Liquid Crystal Display
Sound
Speaker output 20 W (10 W + 10 W)
Connection terminals
AV IN VIDEO Pin jack 1, 1.0 V[p-p] (75 )
(COMPONENT / VIDEO) AUDIO L - R Pin jack 2, 0.5 V[rms]
Y1.0 V[p-p] (including synchronisation)
PB/CB, PR/CR ±0.35 V[p-p]
HDMI 1 / 2 / 3 input TYPE A Connectors
HDMI1 / 3: 4K, Content Type, Deep Colour, x.v.Colour™
HDMI2: 4K, Content Type, Audio Return Channel, Deep Colour, x.v.Colour™
This TV supports “HDAVI Control 5” function.
ETHERNET 10BASE-T / 100BASE-TX
USB 1 / 2 USB1: DC 5 V, Max. 900 mA [SuperSpeed USB (USB 3.0)]
USB2: DC 5 V, Max. 500 mA [Hi-Speed USB (USB 2.0)]
DIGITAL AUDIO OUT PCM / Dolby Digital, Fibre optic
AUDIO OUT 3.5 mm stereo mini jack 1
Receiving systems / Band name 7 SYSTEMS FUNCTION
1 PAL B, G, H
Reception of broadcast transmissions and
Playback from Video Cassette Tape Recorders
2PALI
3PALD,K
4 SECAM B, G
5 SECAM D, K
6 SECAM K1
7
NTSC M (NTSC 3.58 / 4.5 MHz)
Digital TV
7 MHz VHF / 8 MHz UHF free-to-air TV broadcast reception
Receiving channels (Analogue TV)
VHF BAND 2 - 12 (PAL / SECAM B, K1)
0 - 12 (PAL B AUST.)
1 - 9 (PAL B N.Z.)
1 - 12 (PAL / SECAM D)
1 - 12 (NTSC M Japan)
2 - 13 (NTSC M USA)
UHF BAND 21 - 69 (PAL G, H, I / SECAM G, K, K1)
28 - 69 (PAL B AUST.)
13 - 57 (PAL D, K)
13 - 62 (NTSC M Japan)
14 - 69 (NTSC M USA)
CATV S1 - S20 (OSCAR)
1 - 125 (USA CATV)
C13 - C49 (JAPAN)
S21 - S41 (HYPER)
Z1 - Z37 (CHINA)
5A, 9A (AUST.)
Aerial input VHF / UHF
Operating Conditions Temperature : 0°C - 40°C
Humidity : 20% - 80% RH (non-condensing)
Built-in wireless LAN Standard compliance and Frequency range*
IEEE802.11a/n
5.15 GHz - 5.35 GHz, 5.47 GHz - 5.85 GHz
IEEE802.11b/g/n
2.400 GHz - 2.4835 GHz

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Note
• Design and Specifications are subject to change without notice. Mass and Dimensions shown are approximate.
• For information about the open source software, refer to [eHELP] (Search by Purpose > Read First > Before use > License).
Built-in wireless LAN Security
WPA2-PSK (TKIP/AES)
WPA-PSK (TKIP/AES)
WEP (64 bit/128 bit)
*: The frequency and channel differ depending on the country.

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5 CS Maintenance Menu
5.1. How to enter into CS Maintenance Menu
5.1.1. Purpose
After exchange parts, check and adjust the contents of adjustment mode.
While pressing [VOLUME ( - )] button of the main unit, press [INFO] button of the remote control three times within 2 seconds.
Note:
CS Maintenance Menu can not be entered when 3D signal input.
Input 2D signal to enter CS Maintenance Menu.
5.1.2. Key command
Press the Cursor key [Up/Down] on the remote control to select the functions.
5.1.3. How to exit
Press the [EXIT] button on the remote control.
5.2. Repack
1. Select [OPT] in CS Maintenance Menu.
1. Press [OK] button or Cursor key [Right] on the remote control.
Note:
Press the [Exit] button or the [Return] button on the remote control.

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5.3. EDID Clock
1. Select [EDID CLK] in CS Maintenance Menu.
2. Press [OK] button or Cursor key [Right] on the remote control.
Exit:
Press the [Exit] button or the [Return] button on the remote control.
5.4. USB HDD Drive Check
1. Select [DRV CHECK] in CS Maintenance Menu.
2. Press [OK] button or Cursor key [Right] on the remote control.
Exit:
Press the [Return] button on the remote control.

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5.5. White Balance Adjustment
After LCD PANEL or A-Board is replaced and repaired, perform [White balance adjustment] in case of necessity for test / check
([White balance adjustment] is not required basically).
1. Select [W/B ADJ] in CS Maintenance Menu.
2. Press [OK] button on the remote control.
Note for performing [White balance adjustment]
Make a note for the setting values before changing if the settings of [R-GAIN], [B-GAIN] and [G-GAIN] in [WB-ADJ] will be
changed.
3. Press the cursor key [Up/Down] on the remote control to change the data value, and press [OK] button on the remote control
to store the value for this model.
COLOR TEMP : Press the [Option] button of the remote control to change the color temperature. (COOL/NORMAL/WARM/
TUNING)
Exit:
Press the [Return] button on the remote control.

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5.6. Hotel mode
5.6.1. Purpose
Restrict a function for hotels.
5.6.2. Access command to the Hotel
mode setup menu
In order to display the Hotel mode setup menu, please
enter the following command (within 2 seconds). [TV]:
Vol.[Down] + [REMOTE] : AV (3 times)
Then, the Hotel mode setup menu is displayed.
5.6.3. To exit the Hotel mode setup menu
Switch off the power with the [POWER] button on the main unit
or the [POWER] button on the remote control.
5.6.4. Explain the Hotel mode setup menu
Item Function
Hotel Mode Select hotel mode On/Off
Initial INPUT Select input signal modes.
Set the input, when each time power is switched
on.
Selection :
• Off, Analogue TV, Digital TV, AV, HDMI1,
HDMI2, HDMI3
• Off: give priority to a last memory.
Initial POS Select programme number.
Selection :
Off/0 to 99
• Off: give priority to a last memory.
Initial VOL Level Adjust the volume when each time power is
switched on.
Selection Range :
Off/0 to 100
• Off: give priority to a last memory.
Maximum VOL
Level
Adjust maximum volume.
Range :
0 to 100
Button Lock Select local key conditions.
Selection :
Off/SETUP/MENU
• OFF: altogether valid
• SETUP: only F-key is invalid
(Tuning guide (menu) can not be selected.)
• MENU: only F-key is invalid
(only Volume/Mute can be selected.)
Remote Lock Select remote control key conditions.
Selection :
Off/SETUP/MENU
• OFF: altogether valid.
• SETUP: only Setup menu is invalid.
• MENU: Picture/Sound/Setup menu are invalid.
Private Information Select private information for VIERA Cast is Keep
or Reset if Hotel mode is set to [On] when TV
power on
Selection :
Keep/Reset
• Keep: private information for VIERA Cast is
keep
• Reset: private information for VIERA Cast is
reset

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6 Troubleshooting Guide
Use the self-check function to test the unit.
1. Checking the IIC bus lines
2. Power LED Blinking timing
6.1. Check of the IIC bus lines
6.1.1. How to access
6.1.1.1. Self-check indication only
Produce TV reception screen, and while pressing [VOLUME ( - )] button on the main unit, press [OK] button on the remote control
for more than 3 seconds.
6.1.1.2. Self-check indication and forced to factory shipment setting
Produce TV reception screen, and while pressing [VOLUME ( - )] button on the main unit, press [MENU] button on the remote
control for more than 3 seconds.
6.1.2. Screen display
6.2. Power LED Blinking timing chart
1. Subject
Information of LED Flashing timing chart.
2. Contents
When an abnormality occurs, the protection circuit will operate and reset the unit to stand by mode. During this time, the
defective block can be identified by the number of blinking times of the Power LED on the front panel of the unit as follow:
Priority Name Factor R_LED Blink
1 BL_SOS SOS from PANEL inverter 1
2 TV_SOS TCON power down 3
3 SOUND_SOS SOS from audio AMP 9

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6.3. Method of detecting SOS
1. BL_SOS
Detection beginning after one second pass from ‘BL_ON’=ON
2. TV_SOS
Detection beginning after one second pass from ‘AMP_SHUTDOWN’=ON
3. SOUND_SOS
Detection beginning ‘AMP_SHUTDOWN’=ON
6.4. LCD Panel test mode
Purpose:
To find the possible failure point where in LCD Panel or Printed Circuit Board when the abnormal picture is displayed.
How to Enter:
While pressing [VOLUME ( - )] button of the main unit, press [OPTION] button of the remote control three times within 2
seconds.
How to Exit:
Disconnect AC plug from wall outlet.
How to confirm:
If the abnormal picture is displayed, go into LCD Panel test mode to display the several test patterns.
And then, judge by the following method.
Still abnormal picture is displayed: The cause must be in LCD Panel.
Normal picture is displayed: The cause must be in A board.
Remarks:
The test pattern is created by the circuit in LCD Panel.
In LCD Panel test mode, this test pattern is displayed unaffected by signal processing for RF or input signal.
If the normal picture is displayed, LCD Panel must be okay and the cause of failure must be in A board.

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6.5. No Power
First check point
There are following 2 states of No Power indication by power LED.
1. No lit
2. Red is lit then turns red blinking a few seconds later. (See 6.2.)

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7 Disassembly and Assembly Instructions
7.1. Bracket Fitting
1. Fix vesa metal to panel and screw.
2. Stick barrier at panel.
3. Assembly pcb at led panel.
No Description Qty UOM Remark
01 VESA_METAL 4 PC
02 SC (P7/A6/WF1/SP2/VESA4/BTM_M12) 4 PC 06 ± 1 Kgf.cm
03 P-PCB_BARRIER 1 PC
04 LED_PANEL_CASE 1 PC
05 LED_PANEL 1 PC
06 ASS'Y 55 IN-HOUSE PANEL 1 PC Refer part list for detail

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7.2. PCB Fixing
1. Fix side av and bottom bracket at pcb.
2. Fix spacer pcb at ‘A’ board.
3. Fix key button at pcb.
4. Fix wifi module at bracket and fix at panel.
No Description Qty UOM Remark
01 KEY BUTTON BRACKET 1 PC
02 BOTTOM_AV_BRACKET 1 PC
03 SIDE_AV_BRACKET-A-EURO 1 PC
04 SC (P7/A6/WF1/SP2/VESA4/BTM_M12) 1 PC 06 ± 1 Kgf.cm
05 WIFI_BRACKET 1 PC
06 WIFI_MODULE 1 PC

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7.3. Metal & Speaker Fixing
1. Fix bottom metal and screw.
2. Fix speaker bracket at panel and screw.
3. Fix speaker at bracket and screw.
No Description Qty UOM Remarks
01 SPEAKER 2 PC
02 BOTTOM_COVER_B 2 PC
03 BOTTOM_COVER_A 2 PC
04 BOTTOM_METAL R 2 PC
05 SC (P7/A6/WF1/SP2/VESA4/BTM_M12) 14 PC 06 ± 1 Kgf.cm
06 SP_BRACKET (L) 1 PC
07 SP_BRACKET(R) 1 PC
08 BOTTOM_METAL L 2 PC
09 SCREW (SP2) 2 PC 06 ± 1 Kgf.cm

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7.4. Back Cover (Screw)
Fix back cover and screw.
No Description Qty UOM Remarks
01 SCREW (BC6) 6 PC 06 ± 1 Kgf.cm
02 SCREW (BC17) 17 PC 06 ± 1 Kgf.cm
03 SCREW (VESA4) 4 PC 06 ± 1 Kgf.cm

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7.5. Handling SPEC
■Moving the LCD module
The module should be handle by two people and hold on that top and bottom long side by both hands without module
warping. Never handle the module with keeping horizontal position when moving the module in order to avoid internal
damage and deformation. Never drop or hit the module.
■About the work table
When tightening a screw, retention structures are required not to deform the LCD module.
■Moving the TV
Hold the specified parts as shown to stand the TV up and move it with two people.

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8 Measurements and Adjustments
8.1. Voltage chart of A-board
Set A-Board to a dummy set and check the satisfaction with the specified voltage as following table.
8.2. Voltage chart of P-board
Set P-Board to a dummy load and check the satisfaction with the specified voltage as following table.
Power Supply Name Test Point Voltage (V) Target Board
STB5V TP2026 5.1V ± 5% ALL
GND TP2006 0V ALL
BL_SOS TP2041 0V ALL
PANEL_SOS TP4061 0V TNPH1201
Output Test Point GND Step 1 Step 2 Step 3
PFC TP7201/02 TP7203/04 < 340V 390V ± 15V 390V ± 15V *HOT
5VS TP7405/20 TP7427/31/32 5.25 ± 0.2V 5.25 ± 0.2V 5.25 ± 0.2V
16V TP7410/11/12 TP7427/31/32 < 1V 16 ± 0.6V 16 ± 0.6V
64V TP7408/09 TP7801/02/03 < 1V 68V ± 10V 68V ± 10V
VLED TP101 TP102 < 1V < 1V Table on Page 3-6 JIG1, JIG2