Panasonic TH-48AX670T, TH-55AX670T Service manual
ORDER NO. MTV1401264CE
LED TV
Model No. TH-48AX670T
TH-55AX670T
Chassis: LA51
Destination: THAILAND
TABLE OF CONTENTS
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)---------------------------- 5
3 Service Navigation ----------------------------------------------- 6
3.1. Service Hint (TH-48AX670T) --------------------------- 6
3.2. Service Hint (TH-55AX670T) --------------------------- 7
4 Specifications ----------------------------------------------------- 8
5 Service Mode -----------------------------------------------------10
5.1. How to enter into Service Mode ----------------------10
5.1.1. Purpose ------------------------------------------------10
5.1.2. Key command ----------------------------------------10
5.1.3. How to exit---------------------------------------------10
5.1.4. Contents of adjustment mode -------------------- 11
5.1.5. Display of SOS History ----------------------------- 11
PAG E PAG E
5.1.6. Exit ------------------------------------------------------ 11
5.1.7. Hotel Mode-------------------------------------------- 12
6 Troubleshooting Guide --------------------------------------- 13
6.1. Check of the IIC bus lines------------------------------ 13
6.1.1. How to access --------------------------------------- 13
6.1.2. Self-check indication only ------------------------- 13
6.1.3. Self-check indication and forced to factory
shipment setting ------------------------------------- 13
6.1.4. Exit ------------------------------------------------------ 13
6.1.5. Screen display --------------------------------------- 13
6.2. Power LED Blinking timing chart --------------------- 14
6.3. Method of detecting SOS ------------------------------ 14
6.4. LCD Panel test mode ----------------------------------- 15
6.5. No Power--------------------------------------------------- 15
7 Disassembly and Assembly Instructions--------------- 16
7.1. Speaker & H/Sink Ass’y (TH-48AX670T) ---------- 16
7.2. Speaker Fixing and Assembly
(TH-55AX670T)------------------------------------------- 17
7.3. LCD Panel Fixing & Handling Method -------------- 18
7.4. Module & LED Panel Ass’y (TH-48AX670T) ------ 19
© Panasonic Corporation 2014.
TH-48AX670T TH-55AX670T
7.5. Metal MTG Fixing (TH-55AX670T) ------------------20
7.6. PCB & AV Bracket Ass’y (TH-48AX670T) --------21
7.7. Brackets Ass’y (TH-48AX670T) ---------------------- 22
7.8. Bracket Fitting (TH-55AX670T)-----------------------23
7.9. Key Button Assembly (TH-55AX670T) ------------- 24
7.10. Pedestal Ass’y (TH-48AX670T) ----------------------25
7.11. Pedestal Assembly (TH-55AX670T) ---------------- 26
7.12. Back Cover Installation (TH-48AX670T) -----------27
7.13. Back Cover - Label & Screw (TH-55AX670T) ---- 28
8 Measurements and Adjustments -------------------------- 29
8.1. Voltage chart of A-board-------------------------------- 29
9 Block Diagram --------------------------------------------------- 30
9.1. Main Block Diagram ------------------------------------- 30
9.2. Detailed Block Diagram (1/3)-------------------------- 31
9.3. Detailed Block Diagram (2/3)-------------------------- 32
9.4. Detailed Block Diagram (3/3)-------------------------- 33
10 Wiring Connection Diagram --------------------------------- 34
10.1. Wire Dressing (TH-48AX670T) ----------------------- 34
10.2. Wire Dressing 1 (TH-55AX670T) -------------------- 35
10.3. Wire Dressing 2 (TH-55AX670T) -------------------- 36
11 Schematic Diagram--------------------------------------------- 37
12 Printed Circuit Board ------------------------------------------ 67
13 Exploded View and Replacement Parts List -----------73
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TH-48AX670T TH-55AX670T
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
0.15F 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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TH-48AX670T TH-55AX670T
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).
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TH-48AX670T TH-55AX670T
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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TH-48AX670T TH-55AX670T
3 Service Navigation
3.1. Service Hint (TH-48AX670T)
Board Name Main Device Remarks
A BOARD Tuner, DVB-T2 De-Mod, ISDB De-Mod, LD6, LNB, NVT-FRC Repairable
P BOARD Power Supply, Control Panel, LED Driver Repairable
K BOARD Remote, LED, Luminance Sensor Repairable
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3.2. Service Hint (TH-55AX670T)
TH-48AX670T TH-55AX670T
Board Name Main Device Remarks
A BOARD Tuner, DVB-T2 De-Mod, ISDB De-Mod, LD6, LNB, NVT-FRC Repairable
P BOARD Power Supply, Control Panel, LED Driver Repairable
K BOARD Remote, LED, Luminance Sensor Repairable
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TH-48AX670T TH-55AX670T
4 Specifications
■ TV
Dimensions (W H D)
48-inch model 1 087 mm 677 mm 214 mm (With Pedestal)
1 087 mm 632 mm 60 mm (TV only)
55-inch model 1 242 mm 761 mm 292 mm (TV only)
1 242 mm 716 mm 62 mm (TV only)
Mass
48-inch model
55-inch model
Power source AC 220-240 V, 50 / 60 Hz
Rated power consumption 160 W (48-inch model)
Standby power consumption 0.20 W
Visible screen size (diagonal) 121 cm (48-inch model)
Display resolution 3 840 (W) 2 160 (H)
Panel LED backlight Liquid Crystal Display
Speaker output 20 W (10 W + 10 W)
Connection terminals
AV IN VIDEO RCA PIN Type 1 1.0 V[p-p] (75 )
(COMPONENT / VIDEO) AUDIO L - R RCA PIN Type 2 0.5 V[rms]
HDMI 1 / 2 / 3 input TYPE A Connectors
ETHERNET 10BASE-T/100 BASE-TX
USB 1 / 2 DC 5 V, Max. 500 mA [Hi-Speed USB (USB 2.0)]
DIGITAL AUDIO OUT PCM / Dolby Digital / DTS, Fibre optic
Receiving systems / Band name 17 SYSTEMS FUNCTION
Receiving channels (Analogue TV)
VHF BAND 2 - 12 (PAL / SECAM B, K1)
UHF BAND 21 - 69 (PAL G, H, I / SECAM G, K, K1)
15.0 Net (With Pedestal)
14.0 Net (TV only)
18.5 Net (With Pedestal)
17.0 Net (TV only)
197 W (55-inch model)
139 cm (55-inch model)
Y 1.0 V[p-p] (including synchronisation)
P
, PR/C
B/CB
HDMI1 / 2: 4K, 3D (3D content of 4K format is not supported.), Content Type, Audio Return Channel
HDMI3: 4K, 3D (3D content of 4K format is not supported.), Content Type
• This TV supports ‘HDAVI Control 5’ function.
Digital TV 7 MHz VHF / 8 MHz UHF free-to-air TV broadcast reception
28 - 69 (PAL B AUST.)
13 - 57 (PAL D, K)
13 - 62 (NTSC M Japan)
14 - 69 (NTSC M USA)
±0.35 V[p-p]
R
1 PAL B, G, H
2PAL I
3PAL D, K
4 SECAM B, G
5 SECAM D, K
6 SECAM K1
7
NTSC M (NTSC 3.58 / 4.5 MHz)
8 NTSC 4.43 / 5.5 MHz
9 NTSC 4.43 / 6.0 MHz
10 NTSC 4.43 / 6.5 MHz
11 NTSC 3.58 / 5.5 MHz
12 NTSC 3.58 / 6.0 MHz
13 NTSC 3.58 / 6.5 MHz
14 SECAM I
15 PAL 60 Hz / 5.5 MHz
16 PAL 60 Hz / 6.0 MHz
17 PAL 60 Hz / 6.5 MHz
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)
Reception of broadcast transmissions and
Playback from Video Cassette Tape Recorders
Playback from Special VCR’s or DVD
Playback from Special Disc Players and
Special VCR’s or DVD
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TH-48AX670T TH-55AX670T
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
Bluetooth wireless technology
*1: The frequency and channel differ depending on the country.
*2: Not all the Bluetooth compatible devices are available with this TV. Up to 5 devices can be used simultaneously (except the 3D Eyewear and
Touch Pad Controller).
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
Security
WPA2-PSK (TKIP/AES)
WPA-PSK (TKIP/AES)
WEP (64 bit/128 bit)
*2
Standard Compliance
Bluetooth 3.0
Frequency Range
2.402 GHz - 2.480 GHz
*1
■ 3D Eyewear
Dimensions (W H D) 164.7 mm 41.0 mm 170.7 mm
Mass Approx. 34
Usage temperature range 0 °C - 40 °C
Battery Coin-shaped lithium battery CR2025
Operation time Approx. 75 hours in continuous use of the battery made by Panasonic
Materials
Main body / Lens section Resin
Lens section Liquid crystal glass
Note
• 3D Eyewear and Touch Pad Controller use Bluetooth wireless technology.
• Design and Specifications are subject to change without notice. Mass and Dimensions shown are approximate.
• For the information of the open source software, refer to [eHELP] (Support > Licence).
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TH-48AX670T TH-55AX670T
5 Service Mode
5.1. How to enter into Service Mode
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.
5.1.2. Key command
[1] button...Main items Selection in forward direction
[2] button...Main items Selection in reverse direction
[3] button...Sub items Selection in forward direction
[4] button...Sub items Selection in reverse direction
[VOL] button...Value of sub items change in forward direction ( + ), in reverse direction ( - )
5.1.3. How to exit
Switch off the power with the [POWER] button on the main unit or the [POWER] button on the remote control.
10
5.1.4. Contents of adjustment mode
• Value is shown as a hexadecimal number.
• Preset value differs depending on models.
• After entering the adjustment mode, take note of the value in each item before starting adjustment.
Main item Sub item Sample Data
ADJUST CONTRAST
COLOUR
TINT
SUB-BRT
BACKLGT
H POS
H AMP
V POS
V AMP
A COM
WB-ADJ R-GAIN 8D
G-GAIN AE
B-GAIN FF
R-CENT 6C
G-RENT 80
B-CENT A0
OPTION Boot ROM
STBY-SET 00
EMERGENCY ON
CLK MODE 00
CLOCK FC7
Y/C DELAY DYNAMIC
OPT 1 00000000
OPT 2 11100110
OPT 3 00001001
OPT 4 00000000
EDID-CLK HIGH
SRV-TOOL 00
DRV CHECK DYNAMIC
TH-48AX670T TH-55AX670T
5.1.5. Display of SOS History
SOS History (Number of LED blinking) indication.
From left side; Last SOS, before Last, three occurrence before, 2nd occurrence after shipment, 1st occurrence after shipment.
This indication except 2nd and 1st occurrence after shipment will be cleared by [Self-check indication and forced to factory
shipment setting].
5.1.6. Exit
1. Disconnect the AC cord from wall outlet.
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TH-48AX670T TH-55AX670T
5.1.7. Hotel Mode
1. Purpose
Restrict a function for hotels.
2. Access command to the Hotel mode setup menu.
In order to display the Hotel mode setup menu:
While pressing [VOLUME (-)] button of the main unit,
press [AV] button of the remote control three times within
2 seconds.
Then, the Hotel mode setup menu is displayed.
3. To exit the Hotel mode setup menu
Disconnect AC power cord from wall outlet.
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,DVB-C,DVB-T,AV1,AV2,HDMI1,
HDMI2
• Off: give priority to a last memory. However, Euro
model is compulsorily set to TV.
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/ALL
• 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.)
• ALL: altogether invalid.
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.
Hotel Mode USB Basically after user already setup the hotel mode
according to their criteria, what they need to do is
• insert USB (while in hotel mode)
• choose ‘Copy TV to USB’ to copy the setting into
the USB (a file will be created to store the hotel
mode setting in the USB)
• switch ‘OFF’ the unit
• pull out USB from unit
To copy the hotel mode setting from USB.
• enter hotel mode
• insert USB
• choose ‘Copy USB to TV’
• follow instruction as shown on the units
• once finish, switch ‘OFF; the unit
• pull out USB from unit
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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TH-48AX670T TH-55AX670T
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
6.1.2. 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.
6.1.3. 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.
6.1.4. Exit
Disconnect the AC cord from wall outlet.
6.1.5. Screen display
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TH-48AX670T TH-55AX670T
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:
Blinking times Contents & Check point
1 BL_SOS
3IROM-SOS
6 FPGA_SOS
7 SUB_3.3V
8SOS
9 SOUND_SOS
10 GCX/FRC/NVT_SOS
11 FAN_SOS
12 BE (sLD8/LD6/PRO4) SOS
13 Emergency SOS
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
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TH-48AX670T TH-55AX670T
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.
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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TH-48AX670T TH-55AX670T
7 Disassembly and Assembly Instructions
7.1. Speaker & H/Sink Ass’y (TH-48AX670T)
1. Fix sp bracket.
2. Install sp unit.
No Description Qty UOM Remarks
01 SP_BRACKET 2 PC
02 SPEAKER_UNIT 2 PC
03 SCREW (SP4) 4 PC 6 ± 1 kgf.cm
16
7.2. Speaker Fixing and Assembly (TH-55AX670T)
1. Fix speaker bracket at panel and screw.
2. Fix speaker at bracket.
TH-48AX670T TH-55AX670T
NO QTY UOM DESCRIPTION REMARK
01 2 PC SPEAKER UNIT
02 4 PC SCREW (A3/P5/SP4/VESA4/METAL4) 06 ± 1 Kgf.cm
03 4 PC SP BRACKET
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TH-48AX670T TH-55AX670T
7.3. LCD Panel Fixing & Handling Method
1. Place down the cabinet as shown below.
2. Fix LCD panel into the cabinet by taking below precautions.
Other general precautions
1. Do not press panel surface to avoid blue spot on the panel display.
2. Do not use hard cloth or rub the surface too hard. This may cause scratches on the surface.
3. Take care not to subject the TV’s surface to water or detergent. Any liquid (including pets urine) if enters the product could
lead to TV failure.
4. Take care not to subject the surface to insect repellent, solvent, thiner or other voiltile substances. This may degrade surface
quality or cause peeling of the paint.
5. The surface of the display panel is specially treated and may be easily damaged. Take care not to tap or scratch with your
fingernail or other hard objects.
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7.4. Module & LED Panel Ass’y (TH-48AX670T)
1. Fix barrier.
2. Assemble led panel ass’y and fix to cabinet.
3. Install modules and fix with screw.
TH-48AX670T TH-55AX670T
No Description Qty UOM Remarks
01 BARRIER 1 PC
02 WIFI_MODULE 1 PC
03 BLUETOOTH_MODULE 1 PC
04 SCREW (WF2) 2 PC 6 ± 1 kgf.cm
05 LED_PANEL_CASE 1 PC
06 LED_PANEL 1 PC
07 K-BOARD 1 PC *Refer to chassis part list
08 SPONGE (T3 40 10) 1 PC
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TH-48AX670T TH-55AX670T
7.5. Metal MTG Fixing (TH-55AX670T)
1. Fix side av bracket and bottom av at pcb.
2. Fix pcb at panel and screw.
3. Fix wifi and bluetooth at panel.
NO QTY UOM DESCRIPTION REMARK
01 1 PC SIDE_AV_BRACKET
02 1 PC BOTTOM_AV_BRACKET
03 16 PC SCREW (FIN9/A2/P7/SP4/VM4/MTL4/WF3/BT1) 06 ± 1 Kgf.cm
04 1 PC WIFI_MODULE
05 1 PC WIFI_METAL
06 1 PC WIFI_USB_CABLE
07 1 PC BLUETOOTH_MODULE
08 1 PC BLUETOOTH_BRACKET
09 2 PC FELT (10 10 0.55t)
10 4 PC SCREW (A6) 06 ± 1 Kgf.cm
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7.6. PCB & AV Bracket Ass’y (TH-48AX670T)
1. Stick felt and sponge.
2. Fix A, P-board and control button ass’y.
3. Install av brackets.
TH-48AX670T TH-55AX670T
No Description Qty UOM Remarks
01 P-BOARD 1 PC *Refer to chassis part list
02 A-BOARD 1 PC *Refer to chassis part list
03 SCREW (FIN5/P7) 2 PC 6 ± 1 Kgf.cm
04 KEY_BUTTON_BRACKET 1 PC
05 BOTTOM_AV_BRACKET 1 PC
06 SIDE_AV_BRACKET 1 PC
07 SCREW (A4) 4 PC 6 ± 1 Kgf.cm
08 FELT (0.55 10 10) 2 PC
09 FELT (0.45 95 8) 1 PC
10 GASKET (T15 W15 L40) 1 PC
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TH-48AX670T TH-55AX670T
7.7. Brackets Ass’y (TH-48AX670T)
Fix vesa metal, bottom metal, wifi metal and bluetooth bracket to panel.
No Description Qty UOM Remarks
01 VESA METAL 4 PC
02 BOTTOM METAL 2 PC
03 SCREW (VM4/MTL4/WF1/BT1) 10 PC 6 ± 1 Kgf.cm
04 LCD_PANEL 1 PC
05 WIFI_METAL 1 PC
06 BLUETOOTH_BRACKET 1 PC
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7.8. Bracket Fitting (TH-55AX670T)
Fix bottom metal and vesa metal to panel and screw.
TH-48AX670T TH-55AX670T
NO QTY UOM DESCRIPTION REMARK
01 4 PC VESA_METAL
02 2 PC BOTTOM_METAL
03 8 PC SCREW (FIN9/A2/P7/SP4/VM4/MTL4/WF3/BT1) 06 ± 1 Kgf.cm
04 1 PC LED_PANEL_CASE
05 1 PC LED_PANEL
06 1 PC SPONGE (10 40 3t )
07 1 PC SPONGE (T5 W35 L50)
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TH-48AX670T TH-55AX670T
7.9. Key Button Assembly (TH-55AX670T)
1. Fix panel at cabinet and screw.
2. Fix pcb at key button bracket and fix at panel.
3. Stick barrier at panel.
4. Stick felt at key button.
NO QTY UOM DESCRIPTION
01 1 PC BARRIER
02 1 PC LCD_PANEL
03 1 PC KEY_BUTTON_BRACKET
04 1 PC FELT (8 95 0.45t )
05 2 PC GASKET (T7 W10 L20)
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7.10. Pedestal Ass’y (TH-48AX670T)
1. Install neck base to metal frame and fix with screw.
2. Fix rubber foot.
3. Stick frame sheet to pedestal.
4. Packed pedestal ass’y with bag.
TH-48AX670T TH-55AX670T
No Description Qty UOM Remarks
01 METAL FRAME 1 PC
02 NECK BASE-R 1 PC
03 NECK BASE-L 1 PC
04 RUBBER FOOT 2 PC
05 RUBBER FOOT 2 PC
06 METAL FRAME SHEET-R 1 PC
07 METAL FRAME SHEET-L 1 PC
08 M5 12_SCREW 4 PC 18 ± 2.7 kgf.cm
09 BAG (PEDESTAL) 1 PC
25
TH-48AX670T TH-55AX670T
7.11. Pedestal Assembly (TH-55AX670T)
1. Install neck base to metal frame and fix with screw.
2. Fix rubber foot.
3. Stick frame sheet to pedestal.
4. Packed pedestal ass’y with bag.
NO QTY UOM DESCRIPTION REMARK
01 1 PC METAL_FRAME
02 1 PC NECK_BASE-R
03 1 PC NECK_BASE-L
04 2 MT RUBBER_FOOT
05 4 PC RUBBER_FOOT
06 1 PC METAL_FRAME_SHEET-R
07 1 PC METAL_FRAME_SHEET-L
08 4 PC M5 12_SCREW 8 ± 2.7kgf.cm
09 1 PC BAG (PEDESTAL)
26
7.12. Back Cover Installation (TH-48AX670T)
Install Back cover and fix with screw.
TH-48AX670T TH-55AX670T
No Description Qty UOM Remarks
01 SCREW (BC4/VESA4) 8 PC 6 ± 1 Kgf.cm
02 SCREW (BC17/REAR_AV1/CTRL1) 19 PC 6 ± 1 Kgf.cm
03 BACK_COVER 1 PC
27
TH-48AX670T TH-55AX670T
7.13. Back Cover - Label & Screw (TH-55AX670T)
1. Fix back cover and screw.
2. Stick side button label and serial number label.
NO QTY UOM DESCRIPTION REMARK
01 6 PC SCREW (BC4/REAR_AV1/CTRL1) 06 ± 1 Kgf.cm
02 1 PC ADJUSTMENT SHEET
03 1 PC SIDE_AV_INDI._SHEET
04 1 PC SIDE_BUTTON_LABEL
05 20 PC SCREW (BC16/VESA4) 06 ± 1 Kgf.cm
06 1 PC MODEL_NAME_PLATE
07 1 PC REAR_AV_INDI._SHEET
08 1 PC DIGITAL_LICENCE_NUMBER_LABEL
28
TH-48AX670T TH-55AX670T
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.
Board Checked Name Test Point Specification In/Out Target Board Suffix
A PNL12V TP8720 12V ± 1.2V output ALL
A SUB5V TP8750 5.17V ± 0.25V output ALL
A SUB3.3V TP8701 3.39V ± 0.15V output ALL
A HDMI3.3V TP8751 3.3V ± 0.17V output ALL
A SUB_AI_3.3V TP2206 3.3V ± 0.17V output ALL
A EU_TU_1.8V TP5704 1.84V ± 0.1V output AF, BM, EM, HF, SF, SV, YM
A SUB1.5V TP8101 1.52V ± 0.08V output ALL
A SUB1.1V TP8100 1.21 ± 0.06V output ALL
A USB-WiFi TP8620 5.10 ± 0.20V output ALL
A LNB_PWR_M TP6703 18V ± 1.0V output YM
A LNB_PWR_M TP6703 15V ± 1.5V output JM, JN, JP
A SUB9V TP5004 9V ± 0.4V output BM, EM, YM
A WOL3.3V TP8640 3.3V ± 0.17V output BM, EM, YM
A JPN_3.3V TP5700 3.3V ± 0.17V output JM, JN, JP
A JPN_1.2V TP5702 1.22V ± 0.1V output JM, JN, JP
A SD3.3V TP8617 3.34V ± 0.17V output All
A LNA5V TP5705 5.0V ± 0.25V output JM, JN, JP
A JP_TU_2.5V TP5703 2.53V ± 0.1V output JM, JN, JP
A DMD_1.1V TP5703 1.12V ± 0.11V output BM, EM, SF, SV, YM
A SUB_CI_5V TP8400 5.0V ± 0.5V output BM, EM, YM
A USB1 TP8627 5.0V ± 0.25V output All
A USB2 TP8615 5.0V ± 0.25V output All
A NT2.5V TP9170 2.52V ± 0.12V output All
A NT1.5V TP9160 1.52V ± 0.07V output All
A NT1.1V TP9150 1.13V ± 0.06V output All
A RIORX3.3V TP4602 3.35V ± 0.17V output All
A RIO1.2V TP4601 1.22V ± 0.06V output All
A HDMISW3.3V TP3707 3.3V ± 0.17V output All
29
TH-48AX670T TH-55AX670T
(LE D :7 T IM ES )
(LE D :9 T IM ES )
HO T
(LE D :1 T IM E)
CO LD
P5
(MICON + VIDEO PROCESSOR+AUDIO PROCESSOR + STM)
STB3.3V
STM_I2C
SUB1.5V
Y,PB,PR
AUDIO
LAN
I/F
DIGITAL AUDIO OUT
P15V
SUB3.3V
A
PEAKS-LD6
DCDC
L/R IN
RECEIVER
REMOTE RECEIVER
Peaks RESET
SUB3.3V
OVP DET
USB HIGH
SIDE SW
C.A.T.S. SENSOR
ANALOG-ASIC
SOUND_SOS_DET
AUDIO
PROCESSOR
AUDIO_OUT
LED/RM/CATS
Digital Video
Signal
SUB1.1V
SUB1.5V
SUB3.3V
POWER SUPPLY
SUB5V
BL_SOS
[HDMI DECODER/AD
(A Chip)
WiFi
HDMI3
HDMI
I/F
SW
KEY
P
USB I/F
C.A.T.S. SENSOR
SUB3.3V
STB3.3V
F15V
P15V
+5V DCDC
GK
DCDC
SW
EEPROM
SPEAKER(L)
DDR3
L
SUB1.1V
DCDC
LED_R/G
SUB5V
KEY
DCDC
AMP
ETHERNET
L/R
SUB5V
SUB5V
ARC_OUT
PANEL12V
SUB_ON
SUB+3.3V DET
DCDC
TMDS DATA
GK4
R
BT3.3V
BT3.3V
USB HIGH
SIDE SW
LED_R/G
VIDEO
PROCESSOR
KEY
PWM 1-7
POWER_ON
SOUND_SOS
DIGITAL_OUT
WiFi
K
e-MMC_I/F
JK7101
STB RESET
Bluetooth
SUB_ON
STB3.3V
AC CORD
POWER SW
LED_R/G
P2
SPEAKER(R)
STB3.3V
TMDS DATA
C.A.T.S. SENSOR
TMDS DATA
+16V
HDMI3.3V
LDO
+3.3V
DCDC
LED
DRIVE
LDO
+3.3V
+24V
LINE
FILTER
P4
SUB3.3V
BL_ON
+24V
STM
SUB_AI_3.3V
STB5V
AV1
SUB3.3V
LED BACKLIGHT CON.
PWM 1-7
SUB5V
K10
A02
TU_3.3V
BL_ON
HDMI2
PNL12V
COMPONENT IN
MAIN
USB
HUB
USB1,2
AVDDH3.3V(HDMI3.3V)
SUB_ON
LVDS Tx
PWM 1-7
ARC_OUT
A12
e-MMC
REMOTE RECEIVER
SUB_ON
DDR_I/F
+16V
A10
SD DATA
SUB1.5V
REMOTE RECEIVER
CONTROL PANEL KEY
LED
SW
5.3VS
SUB3.3V
SUB_AI_3.3V
SUB1.1V
TU_1.8V
BOOSTER
STB5V
LLC
CONVERTER
LAN CON.
Digital Audio
Signal
HDMI I/F
SD CARD
SOUND_SOS
BL_SOS
SWITCH
POWER ON
HDMI1
TU_1.8V
POWER ON
SD CARD
TUNER I/F
Analog Signal
SUB5V
LDO
HDMI3.3V
AVDDH3.3V
NT1.5V
PNL12V
LED BACK LIGHT
DDR3
NT1.5V
NT2.5V
A15,16
SUB3.3V
LCD DRIVER
SUB3.3V
LCD PANEL
PANEL
DDR_I/F
FRC
SPIFLASH
NT1.1V
SPI_I/F
ARC_SEL
HDMI_SW
RIO
DECODER
TRANSPORT
TS_Parallel
DMD1.2V
DMD1.2V
DCDC
F15V
SUB3.3V
TU_1.8V
TU_3.3V
ON
BOARD
TUNER
DMD
DMD_1.2V
RF IN
ALIF_OUT
DLIF_OUT
(LED:7 TIMES)
(LED:9 TIMES)
HOT
(LED:1 TIME)
COLD
9 Block Diagram
9.1. Main Block Diagram
30
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