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TCL L40D2730A, Service Manual

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TCL L40D2730A Service Manual Download Page 40

TV no picture

Measure the wave 
of pin 8,9 of U1

1*

Check the voltage of 
pin 6 ,7 of u1

OK

Replace u1

Check the circuit 
between U1 and 
U201

Check the U201

measure  the wave of 
SDA and SCL

1*

repair the circuit of 
U101 and Q102

OK

OK

1*

Check the U201

OK

Summary of Contents for L40D2730A

Page 1: ...ion 3 Alignment Procedure 4 Block diagram 5 Scheme Diagram 6 Troubleshooting SORGH GUDZLQJ 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: ...electric shock to the person The exclamation point within an equilateral triangle is intended to alert the user to the presence of important operating and maintenance servicing instructions in the literature accompanying the appliance CAUTION Use of controls adjustments or procedures other than those specified herein may result in hazardous radiation exposure CA U T ION RISK RISK OF ELECTRI ELECTR...

Page 3: ...o impact of any kind Be particularly careful not to damage the picture tube surface 9 Unplug this television set from the wall outlet before cleaning Do not use liquid cleaners or aerosol cleaners Use a damp cloth for cleaning 10 1 Do not place this television set on an unstable cart stand or table The television set may fall causing serious injury to a child or an adult and serious damage to the ...

Page 4: ...ing conductors location of antenna discharge unit connection to grounding electrode and requirements for the grounding electrode 15 2 Note to CATV system installer Only for the television set with CATV reception This reminder is provided to call the CATV system attention to Article 820 40 of the NEC that provides guidelines for proper grounding and in particular specifies that the cable ground sha...

Page 5: ...edurein youroperatinginstructions do not attempt any further adjustment Unplug the set and call your dealer or service technician 22 Whenever the television set is damaged or fails or a distinct change in performance indicates a need for service unplug the set and have it checked by a professional service technician 23 It is normal for some TV sets to make occasional snapping or popping sounds par...

Page 6: ...ce Viewing Angle H V 176 176 EPG Yes at DTV Life Time Typ 30 000hrs Subtitle Closed Caption Yes Color 16 7M 8 bit Parental Control Yes at DTV Refresh Rate 50 60Hz Sleep Timer Yes System Update Yes Hotel Mode Side Input Method Virtual keyboard MHL Teletext Nicam Lightsensor 3DTV Type 3D Format Natura Light Technology DCC Dynamic Contrast Control Yes Backlight Adjustable Yes 0 100 Color Temperature ...

Page 7: ...cification Carton Dimensions LxWxH mm 1120 144 655 Container Loading 20 feet pcs 280 Container Loading 40 feet pcs 592 Container Loading 40 feet High pcs 680 Net Weight With Stand Kg 7 1 Net Weight Without Stand Kg 6 9 Gross Weight With Packaging Kg 9 3 VESA Mounting Dimensions LxH mm 100x150 Drafted by huangzongchao Design and specifications are subject to change without notice Remote ID Picture ...

Page 8: ...gnment Specification For MS08EP LA Series V1 0 Page 1 of 18 TCL GMC IPC R D Factory Test Alignment Specification FTAS for MS08EP LA Series Version 1 0 PREPARED BY Gao Hongxin DATE 2014 11 26 APPROVED BY DATE Disclosure ...

Page 9: ... shall not be disclosed by the recipient to third persons without the written permission of the team leader or GM of R D Revision History Version Issue Date Description of changes v1 0 2014 11 26 These chassis are designed for Latin America LA markets Ready for IPTV The main chip is from Mstar and supports below features matrix Class Item MS08EP LA ...

Page 10: ... x2 1280x1470 60Hz 1280x720p x2 NO Audio Return Channel ARC Yes Serial connector N A Other I2C connector of MEMC module N A Main SW Serial NAND Flash BIN image U501 V8 MS08EPBR LF1V0 IC Details Position Main EEPROM U500 Opera INFO All tests and measurements mentioned hereafter have to be carried out at a normal mains voltage 220 240 VAC All voltages have to be measured with respect to ground unles...

Page 11: ...TB U201 3 3V 5 TU_3V3 U201 3 3V 5 3 3V U174 1 5V 5 1V5 UD60 1 2V 5 1V2 Q10 5V 5V 1 2 SW Image download 1 3 Project ID Modification There are different IDs stored into the NVM depending on different Panels settings and Models features but there s only one key branching ProjectID that includes all So it s not recommended to modify Panel ID with Hyper terminal as other ID features may not change To m...

Page 12: ...y for TV AV Audio tones can be defined by the factory i e 1KHz 3KHz sweep Picture video formats can be changed by the factory according to their own standard Remark 1 CMP Audio in shared with AV AV Video in shared with YPbPr 1 5 AD Calibration Test As SoC as built in A D self calibration mechanism there s not any ADC to perform 1 6 DDC EDID T Link Test The E EDID data structures are according to V...

Page 13: ... TV s RJ45 and check that IP subnet mask DNS addresses are visible on User menu Setting Network Setting Cabal Network OK ensure that Internet Connection is Enabled at first More in depth test can be performed faster using suitable UART IR commands following SIACP requirements SW will internally manage Network ID NID flag controlling all MAC DID UID integrity to facilitate PA screening further Note...

Page 14: ...m up Test Following TCL standard and practices it s required minimum 15min of Warm Up that can be considered as Burn In Additional Aging for White Balance alignment is no more necessary due to consistent Picture Performance with Cloning usage This function is accessible by selecting Factory menu WARM UP pressing RCU Zoom key and then leaving Factory menu Other faster methods are available on above...

Page 15: ...able panel performance and less important than saturation on high light If necessary Scaling Contrast register can be adjusted The BlackLevel measurement need to be within 1 2 If necessary Scaling Brightness register can be adjusted The White Balance alignment should be performed using a well calibrated and contact less analyzer ex Minolta CA210 or CA310 The analyzer may not touch the screen surfa...

Page 16: ...en Mstar Mboot software programming tool ISP_Tool_4528 Click on Read and select mboot bin file Then click Connect it will check SPI FLASH s tape correct it will display OK Note If this is not the first time to upgrade you must do as following Connect 8th pin and 3th pin by a wire ...

Page 17: ...ation For MS08EP LA Series V1 0 Page 10 of 18 Otherwise you will see an error Write Protect can t be disabled Next click on Auto menu then click Run it begin programming Mboot bin when programming success it will display a word Pass ...

Page 18: ...ds to upgrade SW using USB the first one like below In the previous of upgrade SW using USB should program mboot bin file V8 6328L14 LB1Vxxx bin by ISP_Tool or by USB Then switch off TV by removing AC cord Copy the SW BIN image MS6328LA14_FULL_UPGRADE bin into USB stick pen drive root path Note If there s already other MS6328LA14_FULL_UPGRADE bin into USB root it needs to be deleted or renamed Plu...

Page 19: ...factory and through serial command the specific methods according to the operation of the factory guidance Appendix Factory Menu Description 1 Factory hotkey submenu Item Sub item Value Note Factory hotkey Off On OFF hotkey is invalid ON hotkey Return key is availability 2 Warm Up Mode submenu Item Sub item Value Note Warm UP Mode Off On Select panel On with left right key Press EXIT key to enter ...

Page 20: ...to default value 6 NVM Reset submenu Item Sub item Value Note Reset ALL DO Clear NVM values and set to default value 7 Preset Factory Channel submenu NC Item Sub item Value Note Preset Factory Channel HZ CD NM W X POLAND Preset the channel table of factory To preset the channel table of certain factory firstly choose the corresponding factory name then press OK button of remote control and wait un...

Page 21: ...TO DATA N ASCII MAC write B3 MAC address 6 Binary The process is as the picture below Portal give the UID and DID to the factory local service and the service connect to the factory LAN When product line produce the IPTV there will be a work station PC normally down load the DID UID and also MAC from the local service then using UART command sent them to the module 2 How to test the function When ...

Page 22: ...o a wired network 1 2 Connecting to a wireless network To connect your TV to your network wirelessly you need a wireless router or modem and a Wireless LAN Adapter Connect your Wireless High Gain USB Adapter USB dongle delivered with your TV to your TV s USB 1 port 1 2 1 Select Options Network Configuration Interface then select Wireless to connect to a wireless network 1 2 2 Select Wireless setti...

Page 23: ... Address type to Manual then press to go to the first entry field Enter the IP address Subnet mask Default gateway Primary DNS and Secondary DNS values Use the digit buttons to enter numbers and the arrow buttons to move from one entry field to another After setting select Options Network Configuration Connection test to check the Internet connectivity again 4 Select Options Network Configuration ...

Page 24: ...he homepage Back Return to the webpage you just left Go to Select from the list to get back to a recently visited webpage Refresh Click it to refresh the webpage Bookmark manager Click it to display the Bookmark manager English Add a folder Add folders to your Bookmark manager so as to organise your bookmarks into folders to include all the websites you visit frequently Click Add a folder bar type...

Page 25: ...r MS08EP LA Series V1 0 Page 18 of 18 U302 SO 8 13 W25Q16 00B CPP MBOOT V8 6328L14 LB1Vxxx U301 IC TSOP48 13 FHMT29 4GB CPP Main Software V8 6328L14 LF1Vxxx 2 The DEVICE ID MAC Address HDCP KEY ESN KEY must be upgrade by debug port into U302 ...

Page 26: ...DS Transimiter TPA3113D SPI MSD6308RT HDMI2 HDMI3 FAT FAT FLASH Key IR VEDIO IN Audio out Audio in Network DDR SPDIF Signal Flow Diagram Panel USB 1 HDMI1 CABLE ATV ANATENA ATV DTV RX RX D D WIFI D D DDR ...

Page 27: ...Power Supply Block Diagram 2 ...

Page 28: ...3 Power Supply Flow Power transform 52v ...

Page 29: ...MS08PA MS08PA TU101 Tuner TU101 Tuner I C Bus Block Diagram TU1_SCL TU1_SDA 4 HDMI1 HDMI1 HDMI1_SCL HDMI1_SDA HDMI2 HDMI2 HDMI2_SCL HDMI2_SDA HDMI3 HDMI3 HDMI3_SCL HDMI3_SDA ...

Page 30: ...INA TEL 86 755 33312403 5TH FLOOR TCL BUILDING SOUTH NANHAI ROAD A DATE DATE DATE MODEL MS08EP MS08FP DESCRIPITION DRAWN CHECK APPR 7 7 6 6 D D C C B B THIS DRAWING CANNOT BE COMMUNICATED TO UNAUTHORIZED PERSONS COPIEDUNLESS PERMITTED IN WRITING FORMAT DIN A4 TCL NOTE PAGE OF 5 4 3 2 1 5 4 3 2 1 A ...

Page 31: ...D97 CD98 CD99 10uF 16V Change RD90 to adjust Fsw Set Fsw 600kHZ Vin 3V 36V Fixed OCP 5 5A Vref 0 8V If Input Voltage 12V CD90 CD91 10uF 16V NO 28 CC0106 KBX RD93 22K HI Panel ON Fixed Fsw 1 2MHZ BOM COST 1 22RMB For timing sequence SWITCH POWER R028A 0R R021 3K3 R008 33K R013 27K R016 39K R028 4K7 5V 4 3 2 1 AS1117AD U004A G D S Q001A PMV65XP 2 3 1 U004 AZ1117 4 3 2 1 AS1117AD U005A 2 3 1 U005 AZ1...

Page 32: ...TU1_VCC 1 2 3 4 5 6 P900 1 2 3 4 P901 TU1_VCC C112 220U 6 3V T_SCL R210 4K7 3_3V R211 0R R102 33R TU1_SDA F1 RXVN_1 RXVP_1 TXVN_0 TXVP_0 C902 560P AV YPBPR_R_IN R920 75R C916 1000P R918 75R GND_AV_IN C904 NC 47P C905 0 1U C907 0 1U R914 12K C901 560P R201 33R C201 0 047U R_IN L_IN C207 2U2 AV YPBPR_L_IN AV1_V_IN AV1 Y AV R919 75R F901 F900 RXVN_1 RXVP_1 TXVN_0 TXVP_0 1 2 3 4 5 6 7 8 9 10 11 12 13 ...

Page 33: ... 10K R935 1K R933 100R R932 100R R931 47K R930 47K H3_5V H3_SDA H3_SCL H3_RXC H3_RXC H3_RX0 H3_RX1 H3_RX1 H3_RX2 15 16 2 5 8 11 17 19 13 14 7 9 4 6 1 3 10 12 18 P904 15 16 2 5 8 11 17 19 13 14 7 9 4 6 1 3 10 12 18 P905 AVDD5V_MHL R945 33R H2_HPD_OUT H2_HPD C926 2U2 H1_ARC R927 1K R925 100R R924 100R R921 100R R923 47K R922 47K H2_5V R937 5R6 15 16 2 5 8 11 17 19 13 14 7 9 4 6 1 3 10 12 18 P903 H1_...

Page 34: ...0 10U C301 2U2 C302 0 1U C303 0 1U C304 0 1U C306 0 1U NC C230 0 1U C232 0 1U C234 0 1U NC C236 0 1U C237 0 1U NC C235 0 1U NC C229 10U C243 0 1U C244 0 1U C242 10U C927 0 1U Z8 PANEL_12V PANEL_VCC R354 22R R968 33K R969 4K7 R970 3K3 R971 2K7 1 3 2 0BAV99 D210 C928 0 1U PANEL_VCC R239 47K 47K R240 R241 3K3 12V 3_3VSB MCU_RESET 56K R242 R243 27K 5V 12V C261 NC 0 1U NC R238 22K 3_3VSB 1 2 4 6 8 12 1...

Page 35: ...DDCDC_CK DDCDC_DA HOTPLUGC D_RX0N D_RX0P D_RX1N D_RX1P D_RX2N D_RX2P D_RXCN D_RXCP DDCDD_CK DDCDD_DA HOTPLUGD A_RX0N A_RX0P A_RX1N A_RX1P A_RX2N A_RX2P A_RXCN A_RXCP DDCDA_CK DDCDA_DA HOTPLUGA SPDIF MHL demod I2S HDMI Analog audio close to SOC WIFI_D V2 V1 U5 V5 T5 T4 V3 U2 E6 A4 B3 C3 J6 A3 A2 F6 D3 AA2 AA3 F9 J5 V4 U4 E4 F5 E5 W5 AA10 P8 P9 R8 R9 R10 Y5 W4 W7 Y8 W8 Y9 AA9 W9 AA7 Y7 W6 AA6 Y6 E2 ...

Page 36: ...R3_RESET B_DDR3_BA2 B_DDR3_BA2 B_DDR3_BA1 B_DDR3_BA0 B_DDR3_ODT B_DDR3_DMU B_DDR3_DML B_DDR3_WEZ B_DDR3_RASZ B_DDR3_CASZ B_DDR3_DQU6 B_DDR3_DQU4 B_DDR3_DQU0 B_DDR3_DQU7 B_DDR3_DQU6 B_DDR3_DQU5 B_DDR3_DQU4 B_DDR3_DQU3 B_DDR3_DQU2 B_DDR3_DQU1 B_DDR3_DQL7 B_DDR3_DQL7 B_DDR3_DQL6 B_DDR3_DQL5 B_DDR3_DQL4 B_DDR3_DQL3 B_DDR3_DQL2 B_DDR3_DQL1 B_DDR3_DQL0 B_DDR3_A3 B_DDR3_A0 B_DDR3_A7 B_DDR3_A13 B_DDR3_A9 ...

Page 37: ...MP_R OUTLP OUTLP OUTLN OUTRN OUTRP 2 1 P601 2 1 P600 C627 220U 16V 12VA 27 13 14 25 26 15 16 1 2 3 4 5 6 7 8 17 18 19 20 21 23 24 22 9 10 11 12 28 U600 TPA3113D2 GND 12VA AMP_L 0R R634 R631 10K GAIN1 GAIN0 R622 10R 1U C602 C614 0 1U 1U C608 1U C607 R617 10R C613 330P C612 0 22U R628 10R R611 100R L602 220R NC R613 10K C626 0 1U C611 0 1U C625 1000P C610 1000P L606 22UH L603 22UH L601 22UH L608 22U...

Page 38: ...70 A0D256 R785 0 33R EN 25V 470U C832 C851 47U 100V R824 0R 6 4 5 3 2 1 U801 RT7736 FB C806 100P R853B 4 7K ZD851 33V R853A 4 7K ZD850 33V 12VOUT R823 0R R822 0R C808 2200P R821F 150K 220P C850 R852 33R R851 33R C783 22U 160V C852 47U 100V C833 470U 25V 1 2 3 4 5 6 7 8 9 10 CN701 R819A 0 56 R819B 0 56 VLED R798 0R CY81 1000P CY82 1000P BR C853B 0 1U C853A 0 1U C771 0 1U C772 100P R775 470K R776 33...

Page 39: ... no picture Check the voltage of pin s of q208 2 1 Replace R270 and R271 Check the output of Q208 2 1 Check the voltage of g of Q208 OR replace Q208 Measure the wave of LVDS signal 1 2 Replace panel Check the supply of U201 ...

Page 40: ...he wave of pin 8 9 of U1 1 Check the voltage of pin 6 7 of u1 OK Replace u1 Check the circuit between U1 and U201 Check the U201 measure the wave of SDA and SCL 1 repair the circuit of U101 and Q102 OK OK 1 Check the U201 OK ...

Page 41: ... Check the components between VGA YPbPr port and U201 1 Replace the bad VGA YPbPr no picture OK Check the components between VGA YPbPr port and U201 1 Replace the bad Software of U202 ok 1 Check U201 ok OK OK 1 Replace the bad Replace U201 1 Replace the bad Check the peripheral components of U201 ...

Page 42: ...pin 3 13 of U602 2 1 Repair the 12v supply Check the pin 6 of u602 2 1 Check q607 q608 q609 1 2 Replace U602 or replace the wire of speaker check u601 and volume control Check the wave of PIN 4 12 of U602 Check the pin 7 of u602 2 1 repair R691 and R692 ...

Page 43: ...andby 5 0VSB OK 5 0V NG Check the voltage of pin s of q305 2 1 Check before Q305 Check the output of Q305 2 1 Check the voltage of g of Q305 OR replace Q305 Check U303 U304 short to Gnd 1 Replace the bad ...

Page 44: ...The picture bad Replace the wire from P202A to t com Replace panel Replace the chassis NG Check the circuit between p202a and U201 Upgrade the software NG OK OK ...

Page 45: ......

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