TCL L65P8M Series Service Manual
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TCL L65P8M Series Service Manual

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SERVICE MANUAL
1. Caution....................................................................................
2. specification..............................................................................
3. Alignment Procedure..................................................................
4．Block diagram...........................................................................
5．Scheme Diagram .....................................................................
6. Troubleshooting........................................................................
This m anual i s t he l atest at t he t ime of pr inting, and doe s not
include the modification which may be made after the printing, by
the constant improvement of product
TCL
65P8M/RT51HT-AP

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  • Page 1 SERVICE MANUAL 65P8M/RT51HT-AP 1. Caution………………………………………………………………………… 2. specification…………………………………………………………………… 3. Alignment Procedure………………………………………………………… 4．Block diagram………………………………………………………………… 5．Scheme Diagram …………………………………………………………… 6. Troubleshooting……………………………………………………………… This m anual i s t he l atest at t he t ime of pr inting, and doe s not include the modification which may be made after the printing, by the constant improvement of product...
  • Page 2 SCHNEIDER ELECTRONICS GMBH-GERMANY 1. CAUTION CA UTION: Use of controls, adjustments or procedures other than those specified herein may result in hazardous radiation exposure. CA UT ION : T O RE DUCE TH E RIS K OF CA U T ION ELECTR ICA L SHOCK, DO NOT RE MOVE COVER (OR BACK).
  • Page 3 SCHNEIDER ELECTRONICS GMBH-GERMANY IMPORTANT SAFETY INSTRUCTIONS CAUTION: Read all of these instructions. Sa ve these instructions for later use . Follo w all W arnings and Instructions marked on the audio equipment. 1. Read Instructions-All the safety and operating instructionsshouldbe read before the productis operated. 2.
  • Page 4 SCHNEIDER ELECTRONICS GMBH-GERMANY PROTECTION AND LOCATION OF YOUR SET Do not use this television set near water ... for example, near a bathtub, washbowl, kitchen sink, or laundry tub, in a wet basement, or near a swimming pool, etc. Never expose the set to rain or water. If the set has been exposed to rain or water, unplug the set from the wall outlet and refer servicing to qualified service personnel.
  • Page 5 SCHNEIDER ELECTRONICS GMBH-GERMANY OPERATION OF YOUR SET 18. This television set should be operated only from the type of power source indicated on the marking label.If you are not sure of the type of power supply at your home, consult your television dealer or local power company. For television sets designed to operate from battery power, refer to the operating instructions.
  • Page 6 PRODUCT SPECIFICATION RELEASE Model: L65P8M/RT51HT-AP/SD9W02/TCL Version：1.0 Issued On: 2019-03-18 Basic Information Sound Product Type LED UHD Android Smart DTV Speakers Integrated speaker box (Bottom side) Chassis RT51HT-AP Audio Power Output（THD=7%） 2×8W 64bit A55x4 900MHz~1.1GHz Sound Preset Dynamic/Standard/Movie/Music/Voice/Game/Stadium Mali470x3 600MHz-800MHz TV Placement...
  • Page 7 Featured Application List Essential Accessories（Default） Netflix Watch TV Shows Online, Watch Movies Online Operation Manual English(Default) YouTube Push Popular VOD posters to Homepage Remote Control and batteries RC802V (with 2 batteries) TV+ App Store Store with lots of Apps Base Stand Integrated Packaging T-Browser Webpage Browser...
  • Page 8 Test and Alignment Specification for RT2851 Series (v0.01).docx TCL World-Wide R&D FPD CENTER Test & Alignment Specification (TAS) for RT2851 Series Version0.01 PREPARED BY : DATE : 2018-12-14 刘全 唐煜辉 CHECKED BY :DATE : APPROVED BY :DATE : Page 1 of 31...
  • Page 9 Test and Alignment Specification for RT2851 Series (v0.01).docx Disclosure The information contained in this document is proprietary to TCL SZ FPD lab and shall not be disclosed by the recipient to third persons without the written permission of the team leader or GM of R&D.
  • Page 10 Test and Alignment Specification for RT2851 Series (v0.01).docx These chassis are designed for European LCD TV markets Ready for IPTV. The main chip is from realtak RT2851 series with embedded Android core and supports below features matrix: Class Item RT51HS-EU ( PAL B/G D/K I, SECAM √...
  • Page 11 Test and Alignment Specification for RT2851 Series (v0.01).docx (see FDS for details) 3D (auto, top & bottom, side by side, frame sequencing, …) 1920x2205@24Hz (1920x1080p x2) Functions 1280x1470@50Hz (1280x720p x2) 1280x1470@60Hz (1280x720p x2) Audio Return Channel √ (ARC) Serial connector VGA connector Others I2C connector of MEMC...
  • Page 12 Test and Alignment Specification for RT2851 Series (v0.01).docx HDMI to USB and HDMI to HDMI cables  The wire connecting the TV to the adapter is shown below: HDMI -> USB HDMI -> HDMI Page 5 of 31...
  • Page 13 “How to upgrade main SWusing USB and RCU” ⑶ 1.2.2 MP Step In case of starting from blanked flash, it’s necessary to write “tcl.img” file via factory copy in advance. (This function is not ready by SW) OAD Stream ...
  • Page 14 Test and Alignment Specification for RT2851 Series (v0.01).docx settings such as repeated data block insertion, null packets size, … that are controllable in configuration file, here below are mandatory OUI entries structure to prepare DSM-CC carousel image format: export CUST_OAD_OUI 0x001C50 0x5395 export CUST_OAD_HW_MODEL...
  • Page 15 Test and Alignment Specification for RT2851 Series (v0.01).docx Once the boards (chassis, KB, IR, PSU…) and the panel are well interconnected, plug all external generator devices to relevant below inputs/outputs using respective test patterns format to check picture and sound quality: Source Test Signal Test Pattern...
  • Page 16 Test and Alignment Specification for RT2851 Series (v0.01).docx 1.7. DDC & EDID & T-Link Test The E-EDID data structures are according to VESA Enhanced EDID 1.3 (and EIA/CEA-861B for HDMI). CEA Timing Extension structure has been extended to support all 3D capable timings. All HDMI structures have their own BIN profile which are part of main SW and uploaded at power-on into soc chipset: For EDID check, it’s needed to check whether the correct EDID is downloaded by checking corresponding EDID NVM Checksum or read them out to check bit by bit if it is in line with the released EDID bin file.
  • Page 17 Test and Alignment Specification for RT2851 Series (v0.01).docx For such, specific DID (40 bytes) needs to be paired and overwritten into memory for internal client encryption. All DID and MAC codes have to be download from portal local service via suitable factory workstation LAN system. Then during production lot, it’s necessary to send/write all those codes to each TV.
  • Page 18 - Put the U disk into the TV. - Power on TV by AC, at the same time press “power on” key which on the board for 10s until the TCL logo show. - 'Factory Hotkey' will be ON automatic.
  • Page 19 Test and Alignment Specification for RT2851 Series (v0.01).docx Cloning usage. First you need to enable Factory Key. After that selecting“Factory menu WARM UP”, pressing RCU “OK/►” key and then leaving Factory menu by pressing “Exit” key. To release/disable Burn-in mode, press the menu button on the TV panel.
  • Page 20 Test and Alignment Specification for RT2851 Series (v0.01).docx luminance or tristimulus values in video or still image systems. You need adjust 4+3 gamma for different samples based on the color coordinates and target gamma offered by PQ engineer. So each sample can get almost the same effect as PQ golden sample. The 4+3 gamma include 4 gamma based on 4 different color temperature (cool, normal, warm1, warm2) and 3 gamma related to SDR to HDR (cool, normal, warm).
  • Page 21 Test and Alignment Specification for RT2851 Series (v0.01).docx For the 4+3 gamma the target value is 2.2 and error range is ±0.05. We will add more project ID later. Note④: Note: If we can do both of White Balance& Automatic Gamma correction. For some special models, please notice the information provided by Huizhou factory or PJM to choose which way to make it.
  • Page 22 Test and Alignment Specification for RT2851 Series (v0.01).docx 2.4. High Pot. and Insulating Resistance Tests At the end of the process, a “High Voltage” and an “Insulating Resistance” tests are required to fulfill Safety Electrical requirements (CEI 65065).  High Voltage Withstanding requirements Insulating Resistance requirements 3500VAC 500VDC...
  • Page 23 Test and Alignment Specification for RT2851 Series (v0.01).docx 3) Close the serial port tool. open the rtice software, select the Burn page as shown below. 4) Click the settings icon, open the settings page, and configure it as shown below. Page 16 of 31...
  • Page 24 Test and Alignment Specification for RT2851 Series (v0.01).docx Connect Type select RS232; Comm port selects the corresponding serial port; Set-Status type option ROM Code; IC Type Selection RTD2851; Then click ok. 5) Serial Interface to USB debug port Page 17 of 31...
  • Page 25 Test and Alignment Specification for RT2851 Series (v0.01).docx Select connect Sucess 6) Select the Burn burn_Direct,Configure Burn parameters and select bootcode “bootcode_for_rtice.bin” load path, Page 18 of 31...
  • Page 26 Test and Alignment Specification for RT2851 Series (v0.01).docx as shown below. 7) Click the Start button to enter the boot state and the state will change to the connect state as shown below. 8) After the burn is successful as shown below Page 19 of 31...
  • Page 27 Test and Alignment Specification for RT2851 Series (v0.01).docx 9) Turn off the TV ,close rtice software，open the Serial prot tool and connect. 10) Turn the TV on and press the “ESC” by the Serial port tool,enter the boot command states as shown below 11) Input the boot commad usb start fatload usb 0:1 0x1500000 dvrboot.rescue.exe.bin...
  • Page 28 Test and Alignment Specification for RT2851 Series (v0.01).docx  Power on TV by AC, at the same time press “power on” key for 10s, TV will update SW automatically.  When reflashing is successful, TV should restart automatically (about 4min). If “upgrade”...
  • Page 29 Test and Alignment Specification for RT2851 Series (v0.01).docx Go to “Main menu Service menu USB Update Widevine Key Upgrade “, click the right button.  If the toast show Widevine Update OK, it means burn the key success.  After burning, the Widevine key will movie to the folder WIDEVINEKEY_BACKUP. ...
  • Page 30 Test and Alignment Specification for RT2851 Series (v0.01).docx Appendix ⑾ “Network Connection Setup” :You can set up your TV so that it can access the Internet through your local area network (LAN) using a Note⑩ wired or wireless connection. Wired Network Connection You can connect your TV to your LAN using cable in three ways: 1) Plug your TV to your LAN by connecting the LAN port on your TV to an external modem using a Cat5 cable.
  • Page 31 Test and Alignment Specification for RT2851 Series (v0.01).docx Appendix “How to upgrade Flash SW using Network”(not support now) ⑿ Appendix ⒀ “Factory Menu Description” 1-Factory Hotkey submenu Item Sub-item Value Note Enable Hotkey flag by pressing “◄►” key to have possibility to access Factory menu...
  • Page 32 Test and Alignment Specification for RT2851 Series (v0.01).docx -STB: Force TV to standby - Last: Force TV to standby or to start depending on latest operation Factory Hotkey submenu must be ON. Note: 6-USB Clone submenu Item Sub-item Value Note Enable factory Hotkey;...
  • Page 33 Test and Alignment Specification for RT2851 Series (v0.01).docx - ON: Enable print by console -OFF: Unable print by console ScreenPixel Not used DeviceID Not used MAC Address Register Register Code Code HuanID Not used ClientType Client Type ReadEeprom Not used To USB Watch Dog Enable...
  • Page 34 Test and Alignment Specification for RT2851 Series (v0.01).docx LocalDimming Version LocalDimmingVersion Show CI Key Upgrade CI Key Upgrade 11-Nonstand Not used 12-Non-stan Not used dard_DTV HotelMenu Enable by pressing “◄►” key OFF/ON HotelMenu HotelMenu - ON: Enable HotelMenu -OFF: Unable Enable by pressing “◄►”...
  • Page 35 Test and Alignment Specification for RT2851 Series (v0.01).docx Curve_50 Curve_75 Curve_100 Switch picture mode "Standard", by pressing "Vivid", “◄►” key. Picture mode "Dynamic", "Mild", "User" 2-Picture Adjust Brightness by pressing Setting Brightness 0~100 “◄►” key. Adjust Contrast Contrast 0~100 pressing“◄►” key. Adjust Backlight Backlight...
  • Page 36 Test and Alignment Specification for RT2851 Series (v0.01).docx CHEAK check if WIFI works. 7-MEMC Not used LEVEL -Hotel menu submenu Item Sub-item Value Note CH LOCK Enable by pressing “◄►” key. CH LOCK OFF/ON -ON:EnableChannel scan -OFF:Unable Channel scan Adjust sound MAX VOL 0~100...
  • Page 37 Test and Alignment Specification for RT2851 Series (v0.01).docx HDMI4 :GAME:SPORT If source is ATV, start from 9001; Channel If source is DTV,start from 1; preset Channel preset is unable while source is on other situation. KEY LOCK Enable by pressing “◄►”...
  • Page 38 Test and Alignment Specification for RT2851 Series (v0.01).docx After burning, the MGK key will movie to the folder MGKKEY_BACKUP.  Note: The operation must enable factory “P” mode Page 31 of 31...
  • Page 39 nRT51—Block diagram...
  • Page 40 nRT51— Chassis Block Diagram...
  • Page 41 nPower supply Block Diagram...
  • Page 42 0xC0 MX661 RT710 0xF4 0x30 AD82088 SBU : TCLNO: ..... TCL Thomson Electronics Singapore Pte. Ltd. 8 Jurong Town Hall Road #28-01/06 The JTC Summit SINGAPORE 609434 DESIGNATION Tel (65) 63092900 Fax (65) 63092999 Index-Lab DATE NAME DESCRIPTION Last modif...
  • Page 43 0.047U CW13 SBU : VEN=1.43V(on),1.21V(off) TCLNO: ..... 1N4148WS RDA1 POWER_ON 220R TCL Thomson Electronics Singapore Pte. Ltd. 1N4148WS CDA8 DMIC_ON RDA7 8 Jurong Hall Road #28-01/06 The JTC Summit SINGAPORE 609434 WHEN FAR-FIELD SPEECH ON,DMIC_ON=HIGH 0.01U WHEN FAR-FIELD SPEECH OFF,DMIC_ON=LOW...
  • Page 44 DVB-T TUNER TUNER_3V3 TUNER_3V3 TUNER_3V3 ATV & DVB-C/T/T2 VDD_1V8 POWER SUPPLY CT14 Write Add:C0 0.01U 100K RT43 Read Add:C1 RT44 TUNER_3V3 XT16M TUNER_3V3 CT13 1U 3V3VD CT35 CT36 3V3VD I2C_SDA_T 0.1U I2C_SCL_T TUNER_3V3 33NH TUN1 LT4 8.2NH CT1 1000P 0.1U CLK_OUT CONNECT TO SOC VDD_3P3A...
  • Page 45 DDCDA GND5 HDMI3-5V HDMI3-5V HDMI3-HPD SBU : DD-MM DD-MM TCLNO: ..... TCL Thomson Electronics Ltd. DD-MM B Building, TCL Tower, Nanhai Road Nanshan District, Shenzhen, Guangdong DD-MM DESIGNATION Tel +86-755-3331xxxx Fax +86-755-3331xxxx DRAWN Index-Lab DATE NAME DESCRIPTION Last modif CHECKED PAGE: ...
  • Page 46 AUR_IN CN41 DN40 RN41 DN41 DN42 560P SBU : TCLNO: ..... TCL Thomson Electronics Singapore Pte. Ltd. 8 Jurong Hall Road #28-01/06 The JTC Summit SINGAPORE 609434 DESIGNATION Tel (65) 63092900 Fax (65) 63092999 DRAWN Index-Lab DATE NAME DESCRIPTION Last modif...
  • Page 47 RTD2851E MA_SELECT RTD2851E SBU : TCLNO: ..... TCL Thomson Electronics Singapore Pte. Ltd. 8 Jurong Hall Road #28-01/06 The JTC Summit SINGAPORE 609434 DESIGNATION Tel (65) 63092900 Fax (65) 63092999 DRAWN Index-Lab DATE...
  • Page 48 3V3VD 0.1U KLMAG1JETD 153 Ball eMMC and HS400 mode Compatible SBU : TCLNO: ..... TCL Thomson Electronics Singapore Pte. Ltd. 8 Jurong Town Hall Road #28-01/06 The JTC Summit SINGAPORE 609434 DESIGNATION Tel (65) 63092900 Fax (65) 63092999 DRAWN Index-Lab...
  • Page 49 I2S_LRCK AD82088 I2S_BCK AMP_VCC I2S_DATA I2C-SDA AMP_VCC I2C-SCL AMP_PD 12V_IN CA33 12V_IN AMP_VCC 220R 3V3VD 3V3VD 3V3VD ADVDD JU01 3V3VD ADVDD 12V_IN 12V_IN CLOSE TO SPEAKER PORT 3V3VD 3V3VD 22UH CA19 100K 470P CA24 CA21 C0603 0.1U 1000P RA15 AMP_PD_1 WHITE RA11 AMP_PD...
  • Page 50 MICD2 RV12 DMIC_DATA2 2R2 /NC SBU : PV3 /NC 0.1U TCLNO: ..... TCL Thomson Electronics Singapore Pte. Ltd. 8 Jurong Hall Road #28-01/06 The JTC Summit SINGAPORE 609434 DESIGNATION Tel (65) 63092900 Fax (65) 63092999 DRAWN Index-Lab DATE NAME DESCRIPTION...
  • Page 51 nRT51—Key Components PW_ON A_DIM 3V3STB P_DIM PANEL_VCC 12V TUNER_3V3...
  • Page 52 nRT51—Key Components UDBC 12V TO 3.3V UDLE 3.3V TO 1.5V 12V TO 5V 12V TO CPU 1V 12V TO CORE 1V UDE1 3.3V TO 1V EMMC AMP82088 3.3V TO 1.8V 5V TO 3.3V...
  • Page 53 nKey Test Point ----Main Power Supply Normal Abnormal 1，Check the impedance if short to GND？ 2，Check if the power supply board is work。 12V Test point...
  • Page 54 nKey Test Point ----DC to DC LDBC1 UDBC 3V3_STB 12V to 3V3_STB LDF1 ST-A1V0 3V3_STB to ST-A1V0...
  • Page 55 nKey Test Point ----DC to DC LDBC1 UDBC 3V3_STB 12V to 3V3_STB UDBC Impedance Voltage 3.3V >1M 0.7V OPEN 8.7V...
  • Page 56 nKey Test Point ----DC to DC LDF1 ST-A1V0 3V3_STB to ST-A1V0 Impedance Voltage 3.3V >1M 0.99V 3.3V 0.59V...
  • Page 57 nKey Test Point STR Enable 3V3_STB LDL1E 1V5_DDR UDLE 3V3_STB to 1V5_DDR UDLE Impedance Voltage 13.2K 0.5V 16.1K 3.3V 1.3K 1.48V 3.3V...
  • Page 58 nKey Test Point 12V TO 1V0 LDC1 CORE 1V0 Impedanc Impedance Voltage Voltage 1 OPEN 4.23V 3.27V 2 38K 3 38K 4 38K 0.58V 4.5K 5 38K OPEN 0 0.9V 0 0V OPEN 3.27V 0 0V 68.5 0.9V 68.5 0.9V...
  • Page 59 nKey Test Point 12V TO 5V LDA1 Impedance Voltage 5V_FAR 57.6K 5.1V 9.5K 0.7V 38.5K 2.82V OPEN 9.6V...
  • Page 60 nKey Test Point ----LNB power supply(Only for DVB-S) There are two different LNB voltage output: 13.5V(min13.3V,max14.2V ):For vertical polarization(V) 18.5V (min17.7V,max19.2V ):For horizontal polarization(H) US30 minimum JS32 LNB VCC DS40 Lightning protection diode for LNB VCC 12V to 13.5V or 18.5V LNB VCC...
  • Page 61 nKey Test Point ----LDO TUNER-VCC Reference voltage:GND Input voltage:5V UDD ouput: TUNER_VCC Impedance Voltage When UDD is failure, The bad symptoms of TV is Unable to receive TV signal; 3.3V 3.33V -19- 5-Jun-19 Page 23...
  • Page 62 nKey Test Point ----LDO Reference voltage:GND Input voltage:3V3_NORMAL 3V3VD U202 ouput: 1V8 -19- Impedance Voltage 1.77V 3.33V 1.77V...
  • Page 63 nKey Test Point ----POWER SWITCH QW2 “C” Power_on:3.25v normal voltage:0.04v QW1 “D” QW2 “G” QW2 “S” 3V3_NORMAL POWER_ON 3V3_STB 3V3_NORMAL SWITCH QW2 “ B” normal voltage:0.59v...
  • Page 64 nKey Test Point PANEL_VCC PANEL_VCC:12V QJ31...
  • Page 65 nKey Voltage Key Voltage for RTD2851 RTD2851 POWER(normal) 3.3V POWER(pressed) Test Point...
  • Page 66 nImpedance Test UA1 Amplifier RA10 RA15 ≈3.3M ≈3.3M ≈3.3M ≈67K ≈67K ≈162K ≈3.3M ≈3.3M ≈3.3M ≈67K ≈67K ≈162K 5-Jun-19 Page 30...
  • Page 67 nTrouble Shooting...
  • Page 68 nTrouble Shooting...
  • Page 69 nTrouble Shooting...

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