Panasonic TH-75LX700MF Service Manual
  1. Manuals
  2. Brands
  3. Panasonic Manuals
  4. LED TV
  5. TH-75LX700MF
  6. Service manual

Panasonic TH-75LX700MF Service Manual

Hide thumbs
Table of Contents

Advertisement

Quick Links

Download this manual
LED TV
TH-75LX700MF
Model No.
Chassis: 1RT51MC1S2A
© Panasonic Entertainment & Communication Co.,Ltd.2022
Unauthorized copying and distribution is a violation of law.

Advertisement

Table of Contents
loading
Need help?

Need help?

Do you have a question about the TH-75LX700MF and is the answer not in the manual?

Questions and answers

Related Manuals for Panasonic TH-75LX700MF

Summary of Contents for Panasonic TH-75LX700MF

  • Page 1 LED TV TH-75LX700MF Model No. Chassis: 1RT51MC1S2A © Panasonic Entertainment & Communication Co.,Ltd.2022 Unauthorized copying and distribution is a violation of law.

  • Page 2: Table Of Contents

    Table of Contents 1. Safety Precautions ................. 3 1.1. General Guidelines............... 3 1.2. Touch-Current Check..............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. Specifications ..................6 4.

  • Page 3: Safety Precautions

    1 Safety Precautions 1.1 General Guidelines 1. When conducting repairs and servicing, do not attempt to modify the equipment, its parts or its materials. 2. 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.

  • Page 4: Warning

    2 Warning 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.

  • Page 5: About Lead Free Solder (Pbf)

    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.

  • Page 6: Specifications

    11.5 kg (TV only) 65-inch model 65-inch model TH-65LX700M TH-65LX700MF 17.70 kg (With Pedestal) 17.40 kg (TV only) 75-inch model TH-75LX700M TH-75LX700MF 75-inch model 29.0 kg (With Pedestal) Dimensions (W × H × D) 28.0 kg (TV only) 43-inch model Connection terminals 966.6 x 619 x 216.4 mm (With Pedestal)

  • Page 7: Operating Conditions

    13-57 (PAL D, K) 2.4~2.485GHz Digital TV DVB-T/T2 Standard Note Design and Specifications are subject to change ● without notice. Mass and Dimensions shown are approximate. For more product information, please visit EPREL: ● https://eprel.ec.europa.eu. EPREL registration number is available on https://eprel.panasonic.eu/product.

  • Page 8: Service Mode

    8) Factory Data Copy：The TV-data will be copied from tv to USB about 10s. 4.3 Software Upgrades If the firmware update is required, the latest firmware version and update procedure will be found on the website below. https://panasonic.jp/support/global/cs/tv/ (English only)

  • Page 9: Access The Hotel Menu

    4.4 Access the Hotel Menu 1) Press [MENU] of the remote control, Move the cursor on [Picture Mode - Custom]. 2) Move the cursor on [Contrast], and then Press [OK] of the remote control 6 times or Press [1-9-5-0] to enter Design Menu. 3) Move the cursor on [Hotel Menu] and press [OK] button to enter hotel menu 4) Press [>] button to turn it [ON].

  • Page 10: How To Enter Test Pattern

    a) Hotel Mode Activate: Hotel mode switch b) Channel Lock: User cannot search channel Max Vol: MAX Volume d) Auto Setting: Recovery state switch e) PIC Mode: default Picture mode SOU Mode: default Sound mode g) Power Vol: default volume h) Power Source: default source Power Channel: default channel Key Lock: User cannot use keypad...

  • Page 11: Trouble Shooting Diagram

    5. Trouble shooting Diagram Terms: √ IR: Infrared Receiver √ RC: Remote Control √ IR logic: IR blink with RC action √ LVDS: Low Voltage Differential Signal, output from processor and input for panel √ O/C: Open Cell, panel with source board √...
  • Page 12 Reference Check Point PANEL-VCC UDB2 Connection (PIN 44-PIN 51) Socket ( Below) Speaker Connector UDC1 Wi-Fi Main IC Connector EMMC FLASH IR&LED Connector Connector Tuner Source Input Terminal...
  • Page 13 Reference Check Point Rectification bridge Fuse Q201 D202 Q103 U101 U102 U201 Q102 Backlight Connector...
  • Page 14 Reference Check Point PANEL-VCC Fuse Remark: The position distribution of the Fuse and PANEL-VCC of each type of panel will be different, some are on T-CON, some on Source Board. When measuring ,find their position carefully.
  • Page 15 Reference Check Point Check Point Description Analysis Process Rectification bridge Rectification bridge 1.No Power Fuse Fuse 1.No Power U201 Backlight IC for VLED /OVP Test 3.No back light D202/Q201 MOSFET/VBL Test 3.No back light Q102/Q103 MOSFET 1.No Power U101/U102 Power IC for VBL/LLC Test 1.No Power VCC-PANEL Control 2.No Display / Black Panel...
  • Page 16 1.No power No power LED, RC or Key can not turn on TV. Power LED no light/no change. No power Fuse & Power Power Control Unit Rectification IC/MOSFET bridge, OK? Replace PB/MB in turn Check +12V for final confirmation & VBL Replace PB Replace MB...
  • Page 17 2.No Display / Black Panel Back light is OK, sound is OK, but no picture. No display When using LVDS Panel Test Pattern cable, OK? 12V OK? No symptom? When removing FFC between Replace Panel Panel and MB, Reconnect/Replace Panel VCC 12V LVDS cable Replace MB Replace MB...
  • Page 18 3.No back light Power LED logic OK, sound OK, but no picture(Different from No Display). backlight OVP when Measure the VLED Always VBL not disconnect (during power on) change Backlight connector? OVP>2.5V? Replace Panel for final confirmation Replace PB Replace Panel...
  • Page 19 4.No sound One or all signal source without sound. No sound Speakers/ Single Connection, source NG? OK ? Replace/Reconnect Check input signal Speakers in turn for and terminal final confirmation Check signal source/terminal Replace MB for in turn for final confirmation final confirmation...
  • Page 20 5.Signal source no function One or several source no function. Signal no function Single Signal Check LVDS terminal no Upgrade Software source, ok? connection function Signal Check signal source Check other settings source, ok? Change /Repair Replace MB Replace MB Signal cable Change Signal source...
  • Page 21 6. Abnormal Display OSD NG or picture NG. Abnormal Display LVDS When using cable Test Pattern , connector, No symptom ? Reconnect/Replace LVDS cable Replace MB/panel in Check other turn for final Replace MB connections confirmation...
  • Page 22 7.No tuning channels DTV or ATV no Channels No tune channels Signal Upgrading Software, setting, Change Replace MB Check TV settings setting/Tuning again Replace signal Turn again source...
  • Page 23 8. How to Rest P mode on Factory mode on(flash words) P mode on If Factory mode is ON, flashing word will be shown on the screen. How to exit Factory mode ON (= named P Appear factory mode ON), please the following procedure on the left. menu on screen PS:P mode means the factory mode is turned on.
  • Page 24 9. How to exit Aging mode Picture changing Aging mode If Green or Red or Blue or White picture is shown on the screen repeatedly, this is Aging mode. How to exit Aging Press “Menu/Input/Source” mode, please the following procedure on the left. switch on TV keypad •...

  • Page 25: Disassembly And Assembly Instructions

    6 Disassembly and Assembly instructions 6.1 Disassembly flow chart This is disassembly chart . When assembling , perform this chart conversely. Pedestal Back Cover left Back Cover middle Back Cover right Connecting Wire VESA/Stand Support/ Main Board VESA/Stand Support/Power Board WiFi Board T-CON Board Speakers...

  • Page 26: Disassembly Produce For Tv

    6.2 Disassembly Procedure for TV 6.2.1 Back cover and Pedestals 1. Remove the Back Cover top side screws x 13. 2. Remove the Pedestal screws x 4. 3. Remove the Back Cover bottom side screws x 9. 4. Remove the Pedestals. Remark: Place the machine on a flat, smooth table for disassembly and assembly.
  • Page 27 6.2 Disassembly Procedure for TV 6.2.1 Back cover and Pedestals 5. Please refer to the locations in the picture. 6. Gently tap the Back cover with hands in the direction of the yellow arrow so that the Back cover detaches. 7.
  • Page 28 6.2.3 VESA/Stand Support/ Main Board and Connecting Wire 1. Remove the Tapes . 2. Disconnect the Connecting Wire and remove them. 3. Remove the Connecting Wire and remove them. 4. Remove VESA/Stand Support screws(Yellow) x 16. 5. Remove the Main/Power Board screws x 8. 6.
  • Page 29 6.2.4 WiFi Board /Speakers/T-con Board ① Reference picture in the direction of the red arrow, gently pry the WiFi board, then remove it. ② Gently shake the blue rubber ring and pull it out, repeat four times to remove the Speakers. ③...
  • Page 30 6.2.5 Disassemble part of keyboard ① Look at Figure 1 and find the location of the item. ② The way to disassemble keyboard is shown in Figure 2 Figure 1: Items location Move the whole part gently Gently press down so to the left to remove.
  • Page 31 6.2.6 Keyboard and IR Board ① As shown in Figure 1, gently move the black hook to the right and remove the keyboard. ② As shown in Figure 2, gently move the white hook in the opposite direction with your hand then remove the lens. ③...
  • Page 32 6.2.7 Final condition LCD panel mounted on the module Remark: Place the machine on a flat, smooth table for disassembly and assembly.

  • Page 33: Block Diagram

    7 Block Diagram AC Input PANEL_VCC DC-DC DC-DC Core_1V0 UW13 RTD2851M U410 MP2330 MP2329 I&Q U101 DC-DC 5V_STB XTAL RT710 U402 12V DC input IF AGC FITI9206S Supp S2 Tuner Clock generator IF± 27MHz SCPU_1V0 DC-DC SPI/NAND/eMMC U413 Black light UF02- MP8864 I&Q...

  • Page 34: Parts Location

    8 Parts Location Parts Location 1 Screws ⑱ ⑲ ⑰...

  • Page 35: Location Of Lead Wiring

    Location of Lead Wiring Tape1 Main Board Side Tape1 Power Board Side...
  • Page 36 Packing Structure...

  • Page 37: Exploded View And Replacement Parts List

    9 Exploded View and Replacement Parts List...

  • Page 38: Replacement Parts List

      Replacement Parts List Model No. TH-75LX700MF Change Safety Ref. No. Part No. Part Name & Description Q'ty Remarks TZZ00004456A LCD PANEL TZZ00003461A IR LENS TZZ00002926A IR Board TZZ00003468A KEY Board Supporter TZZ00002927A KEY Board TZZ00003466A KEY Supporter TZZ00003467A TZZ00003077A...

Table of Contents