Teac LEDV2282FHD Service Manual
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Teac LEDV2282FHD Service Manual

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MODEL:
LEDV2282FHD
CONTENTS
10. BOM List

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  • Page 1: Table Of Contents

    MODEL: LEDV2282FHD CONTENTS 1. Precautions 2. Block Diagram 3. Troubleshooting 4. Schematic Diagrams 5. Troubleshooting and Schematic Diagrams for DVD Module 6. Exploded Views 7. Adjustment 8. Key Parts 9. Product Specifications 10. BOM List...

  • Page 2: Precautions

    1.PRECAUTIONS Prior to shipment from the factory,the products are strictly inspected to conform with recognized product safety and Electrical codes of the countries in which they are to be sold.However, in order to maintain such compliance,it is equally important to implement the following precautions when a set is being serviced. 1-1.Safety Precautions 1) Before returning an instrument to the customer, always and repeat the test.
  • Page 3 voltage, and (5) antenna wiring. Always inspect in all areas for pinched, out-of-place, or frayed wiring. Do not change spacing between a component and the printed-circuit board, Check the AC power cord for damage. 5) Components, parts, and/or wiring that appear to have overheated or that are otherwise damaged should be replaced with components, parts and/or wiring that Insulation Resistance Test...
  • Page 4 accessible conductive parts. have the same ratings, by ( ) or by ( ) in the circuit diagram are important for safety or for the 1-2-2 Insulation Checking Procedure characteristics of the unit. Always replace them with the exact replacement components. Disconnect the attachment plug from the AC outlet and (4) An insulation tube or tape is sometimes used and some turn the power ON.
  • Page 5 1-4. Handling the LED Module 4. Glass is used in the panel ,so be careful not to drop it In case the screen is damaged and the internal liquid or let it strike a hard object ,which could cause leaks,do not suck or drink the internal fuid. Nor do you breakage or cracks.
  • Page 6 8. Do not disassemble the LED module.Disassembly can 9. If you transport the module,do not use packing cause malfunctions. material that contains epoxy resin(amine)or silicom glue(alcohol or oxime).These materials can release gas that can damage the panel’s polarization.

  • Page 7: Block Diagram

    2.Block Diagram Panel Display LVDS Cable M/B Inverter Board to Panel Mainboard Module Keyboard IR Board Adapter Input(DC12V) Control all input signals, Decode the video signal, De-interlace, and send digital 1) Mainboard signals (LVDS signal) to panel. 2) Panel Display all image; 3) IR Board : Receive IR Signal;...

  • Page 8: Troubleshooting

    3.Troubleshooting CV306L-A Common Problem Solving Power Units Problem Solving Display Units Problem Solving Audio Units Problem Solving Functional Units Problem Solving...
  • Page 10 In stand-by mode, Check TP1 have 12V? Check the +5V and +3.3V test-point of main board whether the voltage is correct or not Power on the Check their Check the power machine external circuit network of U1,U21 test-point TP3 have 5V? test-point TP2 have 12V? test-point TP11 have 1.8V? ，...
  • Page 11 Flickering or Black screen（Back light on） P i c t u r e 2 Display Units Units （ Flickering ） Flickering Is the connection of Driver Board Cable normal Is LCD normal C h e c k t h e n e t w o r k o u t p u t d r i v e r b o a r d J 3 s o c k e t n o r m a l Does the software Change this part of the circuit...
  • Page 12 P i c t u r e 3 D i s p l a y U n i t ( b l a c k s c r e e n ) Black screen Does #5#6 pin of main board J9 have 12V? Check +12v power supply for Inverter, does J9 #4 pin have control voltage? Inverter damaged...
  • Page 13 NO sound P i c t u r e 4 A u d i o U n i t ( N O s o u n d ) Any audio signal input or Is amplifier power supply normal V o l u m e , M U T E s e t W h e t h e r o r n o t n o r m a l c h e c k C O N 1 2 a n y s i g n a l o u t p u t...
  • Page 14 TV not searching/no image Picture 5 Function Unit (ATV broke down) E x t e r n a l R F i n p u t s i g n a l W h e t h e r o r n o t n o r m a l Check tuner VCC whether has 5V Check Tuner’s I C data...
  • Page 15 Picture 6 Function Unit ATV no sound only picture (TV no sound) Under PC AV whether or not has sound Check tuner U14 #3 pin whether has signal or not Check U13 and U14 whether has input audio signal or not Check Check the MSB121...
  • Page 16 Picture 7 Function Unit TV not searching/no image (DTV broke down) E x t e r n a l R F i n p u t s i g n a l W h e t h e r o r n o t n o r m a l Check tuner VCC whether has 5V Check Tuner’s I C data...
  • Page 17 P i c t u r e 8 F u n c t i o n U n i t PC port （P C ） Check the VGA socket Whether Lose color, Image not at center touch normal No signal Image vibrating color cast with cable...
  • Page 18 P i c t u r e 9 F u n c t i o n U n i t （S C A R T 、A V 、S - V ） SCART 、AV、S-VIDEO port SCARGT Change Is AV,S-VIDEO Lose color, All no signal external Input signal normal?
  • Page 19 P i c t u r e 1 0 F u n c t i o n U n i t （H D M I ） HDMI Check the HDMI socket Whether Has image No image touch normal but no sound with cable Check U13 （...
  • Page 20 P i c t u r e 1 1 F u n c t i o n U n i t Does machine show （P C M C I A C I ） “CI MODULE INSERTED” when CI card inserts PCMCIA Check VCC-PCMCIA Enter Menu, then power supply，...
  • Page 21 P i c t u r e 1 2 F u n c t i o n U n i t （V G A 、Y P b P r ） VGA、YPbPr function Does input equipment work normal All (VGA、YPbPr) Change input no output source Check theYPbPr input network...

  • Page 22: Schematic Diagrams

    4.Schematic Diagrams 4-1 Mainboard Schematic Diagram POWER TREE THIS WAY IS THE STANDBY MODE FOR CURRENT,IT IS 6.6mA. THERE ARE 3 VOLTAGE FOR PANEL, 1050mA VDDC1.2V ONE JUST ONLY BE SELECTED . 5V IS RECOMMENDED . AVDD1P2 SYSTEM BLOCK TPS54231 +1.32V 100mA DVDD1.2V...
  • Page 23 Power Input 5V DC-DC DVD Power Interface 12VU +5V_DVD 12VA 12VU Q2 AO3401 Q2 AO3401 3.3VA 12VU 12VU 5018 32uH/3A 5018 32uH/3A FUSE1 FUSE1 DVD CTRL SYNC CON7 CON7 DC3AIN DC3AIN PH-6A PH-6A R127 R127 R131 R131 R143 R143 FUSE/6A FUSE/6A COMP 100n...
  • Page 24 HDCP KEY EEPROM MSD306 U13B U13B MSD306 MSD306 3.3VA U13C U13C MSD306 MSD306 PCMCIA PCMCIA HDMI HDMI AUDIO AUDIO PCM_D0 TS1_D0 PAD_PCM_D[0] PAD_TS1_D[0] RXA0N AV1-Lin PCM_D1 TS1_D1 3.3VA RXA0N PAD_RX0N_A PAD_LINEIN_L0 AV1-Lin PAD_PCM_D[1] PAD_TS1_D[1] RXA0P AV1-Rin PCM_D2 TS1_D2 U6 NC/NC7SZ32 U6 NC/NC7SZ32 RXA0P AV1-Rin...
  • Page 25 RP24 RP24 RP19 RP19 22RX4 22RX4 22RX4 22RX4 MIUA_DQS0 MA_DQS0 MIUA_DQS0 MIUA_DQS0B MA_DQSB0 MA_MCLK MIUA_DQS0B MIUA_MCLK 1.8VA MA_MCLKZ MIUA_MCLKZ 22RX4 22RX4 RP20 RP20 MIUA_DQS1 MA_DQS1 MIUA_DQS1 MIUA_DQS1B MA_DQSB1 U9 W9751G6IB U9 W9751G6IB MIUA_DQS1B MA_DQM1 MA_DQM0 Close to DRAM MA_DQS0 A_MVERF LDQS Vref MIUA_ODT...
  • Page 26 CARD DETECT PWR CTRL VCC-PCMCIA AO3401 AO3401 PCM_CD1_N PCM_CD_N VCC-PCMCIA VCC-PCMCIA PCM_CD2_N 100R 100R BAV70L BAV70L 3.3VA 2.2k 2.2k 4.7k 4.7k PCM_PWR_CTL PCM_PWR_CTL 3904 3904 100R 100R PCMCIA Connector VCC-PCMCIA VCC-PCMCIA CON1 CON1 PCMCIA DIP 68PIN PCMCIA DIP 68PIN GND5 GND0 PCM_CD1_N PCM_D3...
  • Page 27 VGA INPUT AV&YPBPR Input AV3-V R178 R178 AV3-Vin+ VGA-G R167 R167 C135 1n C135 1n C146 47n C146 47n RGB1_SOG 3 R328 R328 DD10 DD10 ISP-RXD C147 C147 R181 R181 ISP-RXD 330p 330p ISP-TXD VGA-B R153 R153 C114 47n C114 47n ISP-TXD RGB1_G+ R329...
  • Page 28 TDA1517P 12VA 12VM 12VA VCC-OP1 R202 R202 NC/100R NC/100R TDA1517P CA21 CA21 R229 R229 NC/100u/16V NC/100u/16V CA26 CA26 C167 C167 R230 R230 470u/16V 470u/16V 100n 100n NC/1k NC/1k R340 R340 C163 C163 R221 R221 100R 100R AMP_LIN C165 1u C165 1u INV1 TDA1517P TDA1517P...

  • Page 29: Troubleshooting And Schematic Diagrams For Dvd Module

    5. Troubleshooting and Schematic Diagrams for DVD Module...
  • Page 31 5.2.
  • Page 32 5.3.
  • Page 33 5.4.
  • Page 34 5.4.
  • Page 35 5.5 Schematic Diagrams for DVD Module 220uF/10V 100uF/10V 100uF/10V 100uF/10V 220uF/10V STEP_OUT DVDA DMEA DMEA DVDB FGIN/I2C_DATA DVDC DISC_IN TRAY_IS_IN/I2C_CLK DVDD TRAYIN NC(1U) TRAY_IS_OUT RFSUM RFIS RESET_B 0.1uF RESET_B AGCCAP VCC1.8 VDD_18 RF_AVDD IR_IN RF3.3V IR_IN AD_AVDD VFD_CLK VFD_CLK AD_AVSS VFD_STB(GAME_LATCH) LDSW VFD_STB...

  • Page 36: Exploded Views

    6.Exploded Views...

  • Page 37: Adjustment

    7.Adjustment Instruction manual for 306 factory menu 1、Entering method of factory menu: Press INPUT key on remote control to open Input Source menu, then press 2,5,8,0 in correct order on remote control to enter factory menu（INPUT+2580）. 2、PC ADC adjust: enter ADC ADJUST in factory menu, you can use “Checker Board pattern” signal or “Gray Scale pattern”...
  • Page 38 4、Curve Setting: Enter Curve Setting in factory menu, you can select Contrast, Brightness, Color, Sharpness to adjust in "Curve Type” menu. Usual, we only change the value of “Curve Point 50”, the picture quality will present in the standard mode of Picture Mode in Picture menu.
  • Page 39 306 Software upgrade 306 software upgrade can be divided into ISP upgrade and USB upgrades .And there are two USB software upgrade ： POWER key to upgrade and the USB upgrade of the Factory menu ． USB software upgrade Before Upgrading, make sure the .BIN file putted into the U disk’s root directory, and U disk into the USB port.
  • Page 40 ISP upgrade Step 1：open the ISP TOO tool ，choose “Connect”, If connected successfully，there will be the following dialog: ，and now If the connection is not successful，then will be： you need to check the tool connection. Step 2：Choose “Read”, make the .BIN file will be burning into the tool，the burning files after compiling has been saved in the \CV306 folder.

  • Page 41: Key Parts

    8.Key Parts 8-1.Inverter Board Pin No. Symbol Description Von/off On/off Control 0~5V Brightness Ground 8-2.Panel...
  • Page 42 TFT LCD MODULE Name Description RXO0- Negative LVDS differential data input. Channel O0 (odd) RXO0+ Positive LVDS differential data input. Channel O0 (odd) RXO1- Negative LVDS differential data input. Channel O1 (odd) RXO1+ Positive LVDS differential data input. Channel O1 (odd) RXO2- Negative LVDS differential data input.

  • Page 43: Product Specifications

    . Product Specifications DESCRIPTION Items FEATURES M216H1-L01 R116 L0350 Panel Screen Size 21.6" (16:9) Resolution 1920(*3)*1080 Contrast ratio 1000:1 Brightness 250 cd/m Viewing angle 85/85/80/80 Antenna Impedance VHF/UHF 75 Ohm (Coaxial) Tuner Integrated and frequency synthesis TV function TV system PAL+SECAM B/G, D/K, I SECAM...

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