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THOMSON 32E77NH20 Service Manual

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Service Manual
1. Caution··························································································2
2. Specifications of chassis·································································6
3. Alignment Procedure······································································12
4. IC Brief Instruction·········································································18
5. Schematic Diagram········································································46
6. Block Diagram···············································································56
7. PCB Layout···················································································57
8. Explode View·················································································59
9. BOM LISTS···················································································60
This manual is the latest at the time of printing, and does not
include the modification which may be made after the printing, by
the constant improvement of product.
THOMSON
32E77NH20

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  • Page 1: Table Of Contents

    THOMSON Service Manual 32E77NH20 1. Caution··························································································2 2. Specifications of chassis·································································6 3. Alignment Procedure······································································12 4. IC Brief Instruction·········································································18 5. Schematic Diagram········································································46 6. Block Diagram···············································································56 7. PCB Layout···················································································57 8. Explode View·················································································59 9. BOM LISTS···················································································60 This manual is the latest at the time of printing, and does not include the modification which may be made after the printing, by the constant improvement of product.

  • Page 2: Caution

    CAUTION: Use of controls, adjustments or procedures other than those specified herein may result in hazardous radiation exposure. CA UTION: TO REDUCE THE RISK OF CAUTION ELECTRICAL SHOCK, DO NOT REMOVE COVER (OR BACK). NO USER SERVICEABLE RISK OF ELECTRIC PARTS INSIDE.
  • Page 3 IMPORTANT SAFETY INSTRUCTIONS CAUTION: Read all of these instructions. Save these instructions for later use. Follow all Warnings and Instructions marked on the audio equipment. 1. Read Instructions- All the safety and operating instructions should be read before the product is operated. 2.
  • Page 4 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 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: Specifications Of Chassis

    Model # 32E77NH20 Brand Panel technology (LCD / PDP) Display mode TFT LCD Display Type TFT LCD Category (Monitor/TV/…) Market Position (Scenium/Intuiva/Mid/Access,,,) FG Supplier (TCL/External supplier) FG assy location (ZY/AN/HZ/External supplier) Cabinet Design (Example: SC VII, V 6,,,) PJO Nb...
  • Page 7 1st panel supplier : Typical response time (Grey to Grey) 1st panel supplier : Typical response time (tr+tf) 1st panel supplier : Typical white luminance (Nits) 1st panel supplier : Contrast VESA std 1500:1 1st panel supplier : Typical panel Life Time (Hours) 60,000 2st panel supplier : panel suppliers 2st panel supplier : panel reference...
  • Page 8 normal/personal/rock/pop/l Sound presets (My ive/dance/techno/classic/s sound/Music/Film/Voice/Flat/Standard/Panorama) Sound techno (Stereo Nicam/Virtual Dolby NICAM,German Surround/SRS Trusurround XT/BBE Viva/SRS WoW Stereo,Virtual surround /…) Loudspeakers built in (T/M/B) -/2/- DPS/DPS+ Decoding capability Standard BG/DK/I/LL` Color System (PAL/SECAM/NTSC) PAL/SECAM/NTSC(AV) DVBT (yes/no) Video standard NTSC 3.58 / 4.43 (AV) YES (720p, 1080i 50/60;...
  • Page 9 Parent Control - Channel lock (For digital transmission and DVD program, to filter some programms) Program auto switch off Germany English Netherlandish Italian Finnish Spanish Danish French Portuguese OSD Language* Poland Norwegian Swedish Czechic running change Russia must be added OSD Positioning OSD Transparency Adjust OSD Timeout Adjust...
  • Page 10 RS232 (Y/N) share with VGA Card Readers USB slot (NO/1.1/2) DVB-CI (common interface) External power converter Accessories included Remote control reference Philips Carton (English/French/Spanish) yes(English) Batteries Product registration Card AC power cords Audio Cord (Jack 3.5mm) VGA Cord Wallmount Antenna Cable General Data Size (W x H x D, with stand) in mm 953*293*695...
  • Page 11 Screen Stikers External AC/DC Power with DC power cord (yes/no) no grounded plug Handle (yes/no) Detachable speaker (yes/no) Number of Speaker Rating Label langages EN, RU Rating Label Logos/Icons (GOST, Bin, Recycling, Caution, …)

  • Page 12: Alignment Procedure

    Phase is OK YUV(YPbPr) chroma2327/BSG-360 1080i@60Hz Picture & A/DVD haft color & Gray sound is ok 3 The way to Factory menu Enter the factory menu (can use the IR and press the remote key “vol-”to 32E77NH20 Factory Alignment Specification MT01...
  • Page 13 B, until the color temperature is x=280±5 y=290±5 Y > 220nit B For the second step form the black bar, Adjust the value of Gray R Gray G Gray B, until the color temperature is x=280±5 y=290±5 Y < 25nit 32E77NH20 Factory Alignment Specification MT01...
  • Page 14 LOGO Select the POWER ON LOGO Pattern Come from IC MT8201. It is used for debug. Don’t modify! Back Light Peak White Alignment Reset Reset EEPROM data, and load the default value of EEPROM Balance 32E77NH20 Factory Alignment Specification MT01...
  • Page 15 All of item are for Debug, Don’t modify! Item Sub-item Mono High DEVI AM Mute AM Mute High AM Mute Low Carrier Shift Saturation Mute FM mute FM mute High FM mute Low 6) Sound Volume Curve Item Sub-item 32E77NH20 Factory Alignment Specification MT01...
  • Page 16 LCD32E77NH20(MT01) Factory Alignment Specification Sound VOL_0 VOL_10 VOL_50 VOL_90 VOL_100 TV Pre TV pre- amplify AV Pre TV pre- amplify SWPREQ For debug 7) Other All of item are for Debug, Don’t modify! 32E77NH20 Factory Alignment Specification MT01...
  • Page 17 (6) After downloading SW, it will be long time for Initializing EEPROM. Solution 2 Preparative is same with above. Set SYSTEM->FactoryKey on factory MENU to OFF. Connect the device as below picture. Update the SW follow solution1- (3), (4), (5), (6) 32E77NH20 Factory Alignment Specification MT01...

  • Page 18: Ic Brief Instruction

    4.IC Brief Instrction MT8201 Application Notes Specifications are subject to change without notice MT8201 Application Notes T8201 is a highly integrated single chip for LCD TV supporting video input and output format up to HDTV. It format u format includes 3D comb filter TV decoder to retrieve the best image from popular composite signals. Embedded posite sign posite sig HDTV/VGA decoders let the high bandwidth input signals perfectly reproduced.
  • Page 19 MT8201 DOCUMENT ARE SUBJECT TO CHANGE WITHOUT NOTICE MTK CONFIDENTIAL, NO DISCLOSURE Smart detection on Scart function for European region Smart detection on D-connector for Japan region Supporting SCART RGB inputs mixed with composite signal by adjustable horizontal delay Supporting various VGA input timings up to SXGA (1280x1024@60Hz). Supporting Separate/Composite/SOG sync types Digital port 1 digital port supporting CCIR-656/601 digital video input format...
  • Page 20 MT8201 DOCUMENT ARE SUBJECT TO CHANGE WITHOUT NOTICE MTK CONFIDENTIAL, NO DISCLOSURE Audio and video lip synchronization Supporting Reverberation Audio Input/Output Decode audio AF from Tuner 2 channels audio L/R digital line in. 5.1-channel slave digital line in Supporting total 8-channels including full 5.1-channels digital output, and 2-channel headphone/speaker output. 2D-Graphic/OSD processor Embedded one backend RGB domain OSD plane and one YUV domain OSD plane.
  • Page 21 MT8201 DOCUMENT ARE SUBJECT TO CHANGE WITHOUT NOTICE MTK CONFIDENTIAL, NO DISCLOSURE For single country, we need around 20KB to store font data. For more bitmaps, we need more flash space to store them. 2Mbytes is recommended to build a general TV model. Outline 256-pin LQFP package 3.3/2.5V/1.8-Volt.
  • Page 22 MT8201 PRELIMINARY, SUBJECT TO CHANGE WITHOUT NOTICE MTK CONFIDENTIAL, NO DISCLOSURE BLOCK DIAGRAM Analog Front End CVBS / SV 8032 (x8) (Customer) HDTVD YPbPr External MDDi Switches VGAD VGA (aRGB) DRAM Analog Path Digital Digital Path Control Signal (GPIO, …) Merge Color Proc Gamma...
  • Page 23 MT8201 PRELIMINARY, SUBJECT TO CHANGE WITHOUT NOTICE MTK CONFIDENTIAL, NO DISCLOSURE MT8201 PIN DESCRIPTION Item Symbol Pin # Type Description DIGITAL Power/Ground (45) DVDD3 3.3V power DVSS3 3.3V ground DVDD2 2.5V power DVSS2 2.5V ground DVDD18 1.8 V power DVSS18 1.8 V ground DLL 1.8V Power for digital part AVDD18...
  • Page 24 MT8201 PRELIMINARY, SUBJECT TO CHANGE WITHOUT NOTICE MTK CONFIDENTIAL, NO DISCLOSURE Item Symbol Pin # Type Description Audio line in FCI Interface (3) 2~16mA, SR, PU(optional), PD(optional) FCIDAT GPIO (default, input in initial state) SDIO in ms mode or DAT0 in SD mode 2~16mA, SR FCICLK GPIO (default, input in initial state)
  • Page 25 MT8201 PRELIMINARY, SUBJECT TO CHANGE WITHOUT NOTICE MTK CONFIDENTIAL, NO DISCLOSURE Item Symbol Pin # Type Description IOA2 Microcontroller address 2 / IO, 2mA, SR, PU IOA3 Microcontroller address 3 / IO, 2mA, SR, PU IOA4 Microcontroller address 4 / IO, 2mA, SR, PU IOA5 Microcontroller address 5 / IO, 2mA, SR, PU IOA6...
  • Page 26 MT8201 PRELIMINARY, SUBJECT TO CHANGE WITHOUT NOTICE MTK CONFIDENTIAL, NO DISCLOSURE Item Symbol Pin # Type Description GPIO (default, input in initial state), 2mA PWM1 PWM output 1, 2mA IR control signal input, 4mA, SR, SMT Dram Interface (41) dram data bus bit 0 dram data bus bit 1 dram data bus bit 2 dram data bus bit 3...
  • Page 27 MT8201 PRELIMINARY, SUBJECT TO CHANGE WITHOUT NOTICE MTK CONFIDENTIAL, NO DISCLOSURE Item Symbol Pin # Type Description dram address bus bit 8 dram address bus bit 9 RA10 dram address bus bit 10 RA11 dram address bus bit 11 RCS_ dram chip select RAS_ dram row address strobe...
  • Page 28 MT8201 PRELIMINARY, SUBJECT TO CHANGE WITHOUT NOTICE MTK CONFIDENTIAL, NO DISCLOSURE Item Symbol Pin # Type Description Multi-function, 2mA (1) GPIO (default, input in initial state) (2) R[5] Multi-function, 2mA (1) GPIO (default, input in initial state) (2) R[6] Multi-function, 2mA (1) GPIO (default, input in initial state) (2) R[7] Multi-function, 2mA...
  • Page 29 MT8201 PRELIMINARY, SUBJECT TO CHANGE WITHOUT NOTICE MTK CONFIDENTIAL, NO DISCLOSURE Item Symbol Pin # Type Description GPIO (default, input in initial state) HDMIBCLK BCK for HDMI GPIO (default, input in initial state) HDMILRCK LRCK for HDMI GPIO (default, input in initial state) HDMISD0 CH 1/2 data input for HDMI GPIO (default, input in initial state)
  • Page 30 MT8201 PRELIMINARY, SUBJECT TO CHANGE WITHOUT NOTICE MTK CONFIDENTIAL, NO DISCLOSURE Item Symbol Pin # Type Description PLLVSS2 GND PLL group ground PLLVDD2 power 1.8v PLL group power PLLVSS3 GND PLL group ground PLLVDD3 power 1.8v PLL group power XTALVDD power 1.8v XTAL power XTALO XTAL I/O clock...
  • Page 31 MT8201 PRELIMINARY, SUBJECT TO CHANGE WITHOUT NOTICE MTK CONFIDENTIAL, NO DISCLOSURE Item Symbol Pin # Type Description G[5] output of Channel Even LVDS Tx negative output G[4] output of Channel Even LVSSB GND LVDS ground LVDS Tx positive output CK1P G[3] output of Channel Even LVDS Tx negative output CK1N...
  • Page 32 MT8201 PRELIMINARY, SUBJECT TO CHANGE WITHOUT NOTICE MTK CONFIDENTIAL, NO DISCLOSURE Item Symbol Pin # Type Description SOY0 Sync on Y0 Component Y0+ differential input (input range: 0.5V~1.5V) Component Pb0+ differential input (input range: 0.5V~1.5V) Component Pr0+ differential input (input range: 0.5V~1.5V) SOY1 Sync on Y1 Component Y1+ differential input (input range: 0.5V~1.5V)
  • Page 33 MT8201 PRELIMINARY, SUBJECT TO CHANGE WITHOUT NOTICE MTK CONFIDENTIAL, NO DISCLOSURE Item Symbol Pin # Type Description AADCVSS GND Audio front end ground negative Audio ADC reference pin positive Audio ADC reference pin bypass CVBS video output pin Audio DAC (6) ADACVDD Power 3.3v Audio front end power Audio DAC output...
  • Page 34 MT8201 PRELIMINARY, SUBJECT TO CHANGE WITHOUT NOTICE MTK CONFIDENTIAL, NO DISCLOSURE Mar, 2006...
  • Page 35 MT8201 PRELIMINARY, SUBJECT TO CHANGE WITHOUT NOTICE MTK CONFIDENTIAL, NO DISCLOSURE MT8201 Digital Audio Input Pin Configuration Note that there are different input pin configurations for MT8201 on master and slave clock modes. Master Mode Slave Mode Description (MT8201 is Master clock (MT8201 is Slave clock mode) mode) Data input...
  • Page 36 MT8201 PRELIMINARY, SUBJECT TO CHANGE WITHOUT NOTICE MTK CONFIDENTIAL, NO DISCLOSURE MT8201 Flash ROM Support Test Report : Item Brand IC Number Speed Size Voltage Package Result 29LV800ABTC-70 MXIC 70ns 3.3V TSOP48 Pass MXIC 29LV800ATTC-70 70ns 3.3V TSOP48 Pass MXIC 29LV800ATTI-70 70ns 3.3V...
  • Page 37 MT8201 PRELIMINARY, SUBJECT TO CHANGE WITHOUT NOTICE MTK CONFIDENTIAL, NO DISCLOSURE MT8201 8Mx16x1 DDRAM Test Report : Item Brand IC Number Speed Voltage Package Result ESMT 2.5V TSOP66 Elixir 2.5V TSOP66 Hynix 2.5V TSOP66 ProMos 2.5V TSOP66 MT8201 8Mx16x1 SDRAM Test Report : Item Brand IC Number...
  • Page 38 MT8201 PRELIMINARY, SUBJECT TO CHANGE WITHOUT NOTICE MTK CONFIDENTIAL, NO DISCLOSURE DDR DRAM Layout Guide 4 LAYER PCB LAYOUT CONSTRAINTS Board Stackup Outer Layer 0.5 oz FR 4 Inner Layer er Layer Laye 1.0 oz Fig. 1-1 PCB Stackup – 4 Layers up –...
  • Page 39 MT8201 PRELIMINARY, SUBJECT TO CHANGE WITHOUT NOTICE MTK CONFIDENTIAL, NO DISCLOSURE Fig. 1-2 Signal Topology -1 Table 1-2. Signal Topology –1 Signal Width Trace (mil) Spacing 2*W or Above W or Above Abov 2*W or Above Min. Max. Min. Max. Min.
  • Page 40 MT8201 PRELIMINARY, SUBJECT TO CHANGE WITHOUT NOTICE MTK CONFIDENTIAL, NO DISCLOSURE MT8205 Fig. 1-3 Signal Topology -2 Table 1-3. Signal Topology –2 CS# CAS# RAS# WE# Signal RA / BA RA / BA / BA Width Trace (mil) Spacing 2*W or Above 2*W or Above 2*W or Above Min.
  • Page 41 MT8201 PRELIMINARY, SUBJECT TO CHANGE WITHOUT NOTICE MTK CONFIDENTIAL, NO DISCLOSURE DDR Signal Topology – 3 MT8205 Fig. 1-4 Signal Topology -3 Table 1-4. Signal Topology –3 CLK CLK# Signal Width Trace (mil) Spacing 2*W or Above Min. Max. Min. Max.
  • Page 42 MT8201 PRELIMINARY, SUBJECT TO CHANGE WITHOUT NOTICE MTK CONFIDENTIAL, NO DISCLOSURE Top. 1 Top. 2 MT8205 System Memory stem Me em Me (SDR) Fig. 1-4 Signal Topologies Table 1-5. Signal Topology – SDR RA/Command Signal Top. 1 Top. 2 Top. 2 Top.
  • Page 43 MT8201 PRELIMINARY, SUBJECT TO CHANGE WITHOUT NOTICE MTK CONFIDENTIAL, NO DISCLOSURE DC CHARACTERISTICS Measurement Value Absolute Maximum Ratings SYMBOL PARAMETER RATING UNITS VDD18 1.8V Power Supply -0.3 to 2.0 VDD2 2.5V Power Supply -0.3 to 2.75 3.3V Power Supply -0.3 to 3.6 VDD3 Input Voltage of 3.3V I/O VIN3...
  • Page 44 MT8201 PRELIMINARY, SUBJECT TO CHANGE WITHOUT NOTICE MTK CONFIDENTIAL, NO DISCLOSURE ADC Characteristics TV high resolution Video ADC Characteristics Symbol Parameter Conditions Max Units ADC C I D E O H A R A C T E R I S T I C S ENOB Effective number of bits Bits...
  • Page 45 MT8201 PRELIMINARY, SUBJECT TO CHANGE WITHOUT NOTICE MTK CONFIDENTIAL, NO DISCLOSURE Audio ADC Characteristics Symbol Parameter Conditions Max Units ADC C U D I O H A R A C T E R I S T I C S ENOB Effective number of bits Bits Signal to noise ratio...

  • Page 46: Schematic Diagram

    CE13 CE19 100U 100U 100U 1000UR GND/ADJ GND/ADJ CE12 CE18 100U 100U CE11 100U CE17 100U GND/ADJ CE10 220U CE22 100U 100U CB12 0.1U 100U CE21 100U 220U...
  • Page 47 CE31 CE30 CE35 CE32 CE36 CE40 CE42 100U 100U CE29 CE33 100U 100U...
  • Page 48 0.1U 0.1U CB201 Z103 U100 MAX809 0.1U Z102 Z101 CB68 0.01U Z107 0.1U CB72 CB74 0.1U CB71 0.01U LL4148 Z106 Z105 Z104 CB65 0.01U CB64 0.01U CB63 0.01U CB60 0.1U CB59 0.1U CB58 0.1U CB57 0.1U 0.1U CB205 CB47 0.1U...
  • Page 49 CE50 100U...
  • Page 50 VSADJ VCC3 GND3 VCC2 GND2 VCC1 GND1 SCL1 SDA1 VCNTL1 SOG_IN OSC_IN IOGND33_6 IOVCC33_3 SCDT RESET# RSVDL KSDA REGVCC KSCL XTALVCC CVCC18_3 XTALIN CGND18_3 XTALOUT AUDPGND GPIO14 AUDPVCC18 GPIO13 CVCC18_6 GPIO12 CGND18_6 IOGND33_7 MCLK IOVCC33_4 IOGND33_1 GPIO11 IOVCC33_7 GPIO10 GPIO9 GPIO8 CVCC18_4 CGND18_4...
  • Page 53 0.1U R600 CE72 100U CE120 100U...
  • Page 54 CE90 220U C195 100U 470U CE596 CE92 100U CB140 0.1U...
  • Page 55 C536 0.1U CE595 1000U R503 R624 C594 1000U R530 C512 0.1U 0.1U...

  • Page 56: Block Diagram

    DTV_CVBS DTV_PB Control Signal DTV_PR DTV_Y AV1_CVBS AV1_RIN AV1_LIN AV1_CVBSOUT AV1_ROUT AV1_LOUT AV3_R/L AV2_CVBS AV2_Y AV2_C AV2_CVBS OUT AV2_ROUT AV2_LOUT IR GPIO AV3_CVBS AV3_RIN AV3_LIN HEADPHON_OUT...

  • Page 60: Bom Lists

    9.BOM LISTS...

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