Astar ud55yc5500ua Service Manual Download Page 1 | Manualshive

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Astar ud55yc5500ua Service Manual Download Page 1

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LCD COLOUR TV

SERVICE MANUAL

CHASSIS NO.: LS01

Please read this manual carefully before service.

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Summary of Contents for ud55yc5500ua

Page 1: ...1 LCD COLOUR TV SERVICE MANUAL CHASSIS NO LS01 Please read this manual carefully before service ...

Page 2: ... key point measure date 29 Chapter4 Maintenance Procedure and Examples of Typical troubleshooting 39 Chapter5 Spare Part Lists 40 Chapter6 Factory Setup and notice 41 Appendix 1 Circuit Schematic diagram 2 Circuit Schematic diagram of power module 3 Final Assembly diagram 4 Wiring diagram of LCD TV with LS01 chassis take LT32GJ01E as an example ...

Page 3: ...0 pages X 100 pages CCD X Yes X Sound demodulator NICAM IGR BTSC NICAM IGR SCART Yes X X VGA Yes Yes Yes YPbPr Yes Yes Yes HDMI Yes Yes Yes Earphone Yes Yes Yes OSD language English French German Italian Portuguese etc English French Portuguese Spanish etc English French German Spanish etc Auto Off without Signal Reception 5 minutes Program booking 5 program booking Turn to the corresponding progr...

Page 4: ...4 1 European market ...

Page 5: ...5 2 American and Asian market ...

Page 6: ... it has Scart S Video AV YPbPr HDMI and PC interface Tuner input sound demodulation sound processing sound power amplifier and online update 2 Remote reception module The remote reception board module is constituted by an indicator light and a remote reception Customer could manipulate the LCD TV by using remote controller very conveniently By the color of the indicator light the operation mode of...

Page 7: ...of AV terminal 10 U35 STV 8217 STV 8218 Audio signal processor 11 U14 74LVC14AD VGA line and field synchronizing signal waveform shaping 12 U16 U25 AT24C02BN 10SU 1 8 EEPROM 14 U18 U22 AZ1117H 1 8TRE1 3 3V to 1 8V DC conversion 16 U19 U24 AZ1117H 3 3TRE1 5V to 3 3V DC conversion 18 U20 AZ1084S 3 3TRE1 5V to 3 3V DC conversion 19 U21 AZ1084S 1 8TRE1 5V to 1 8V DC conversion 20 U23 AZ78L08ZTR E1 12V...

Page 8: ...rovide the most natural cinema realistic images The DCReTM technology integrates advanced 3D comb video decoding advanced motion adaptive de interlacing object based digital noise reduction advanced 6th generation scaler film mode support average picture level APL edge smoothing and dynamic sharpness enhancement Trident s patented Unified Memory Architecture UMA that allows frame rate conversion 3...

Page 9: ...input 1 180 Y_G1 Y input 181 Y_G2 SCART1 Green signal input 182 Y_G3 S Video Y signal input 183 PC_G PC Green signal input 188 PR_R1 DVD interface Pr signal input 189 PR_R2 SCART1 Red signal input 190 PR_R3 SCART2 Y signal input 191 PC_R PC Red signal input 192 C S Video C signal input 196 PB_B1 DVD interface Pb signal input 197 PB_B2 SCART1 Blue signal input 198 PB_B3 SCART1 CVBS signal input 199...

Page 10: ...t signal high level effective 85 V5SF SF Power 5V 4 DP_HS Line synchronization signal 5 DP_VS Field synchronization signal 23 DP_CLK Digital port Clock 6 DP_DE_FLD DE I O terminal 64 ADDR0 71 ADDR7 CPU address R0 R7 signal 83 A_D0 76 A_D7 CPU address data passage MISC port control signal 162 CVBS_OUT2 SCART2 interface CVBS signal output 163 CVBS_OUT1 SCART1 interface CVBS signal output 157 TEST MO...

Page 11: ...ulse 129 CS0 Memory chip selection signal 111 MCK Memory clock signal 155 MD0 148 MD7 145 MD8 138 MD15 107 MD16 100 MD23 95 MD24 88 MD31 Memory data interface LVDS port 52 LVDS_VDDP Power for LVDS 38 PLL_GND PLL ground 39 PLL_VCC PLL power 47 LVDSGND LVDS ground 46 LVDSVCC Power for LVDS 43 TCLK1M 42 TCLK1P Positive Negative LVDS differential clock output 51 TA1 M 50 TA1P 49 TB1M 48 TB1P 45 TC1M P...

Page 12: ...C 97 VSSC 120 VSSC 137 VSSC 161 VSSC 20 VSSH 73 VSSH 99 VSSM 110 VSSM 135 VSSM 147 VSSM Digital ground 195 AVDD3_ADC2 168 AVDD3_ADC1 ADC analog power 3 3V 2 PLF2 Video PLL clock low pass filtering 207 MLF1 Memory PLL clock low pass filtering 1 PAVSS2 PLL ground 3 PAVDD2 PLL power 1 8V 206 PAVSS1 PLL digital ground 208 PAVDD1 PLL digital ground power 1 8V 203 PAVSS PLL Digital ground 202 PAVDD PLL ...

Page 13: ...VDD_ADC2 193 AVDD_ADC3 178 AVDD_ADC4 ADC analog power 1 8V 176 AVSS_ADC1 187 AVSS_ADC2 194 AVSS_ADC3 179 AVSS_ADC4 ADC analog ground 165 AVDD3_OUTBUF 164 AVSS_OUTBUF 3 3V analog power 166 AVDD3_BG_ASS 167 AVSS_BG_ASS Analog ground SVP CX32LF internal block diagram ...

Page 14: ...48ns Build in RAM 10Kbytes Expandable up to 16Mbytes simultaneously support 8 16 bit width external data bus 8 bit timers 6 channels 16 bit timers 1 channel General purpose serial interface 1 channel Serial bus interface 1 channel 10 bit A D conversion interface 4 channels Watchdog timer Timer for real time clock RTC Chip select wait controller 4 blocks 34 interrupt signals output 9 CPU interrupt ...

Page 15: ...6 P74 TA5OUT Backlight on off control 7 P80 TB0IN0 INT5 Remote control signal 8 P81 TB0IN1 INT6 1 8V power supply 9 P82 TB0OUT0 Remote red control signal 10 P83 TB0OUT1 Remote green control signal 11 P90 TXD0 Digital ground 12 P91 RXD0 HDMI identity signal 13 P92 SCLK0 No connection 14 P93 CON4 10th pin 15 P94 CON4 4th pin 16 P95 CON4 3rd pin 17 AM0 Bus byte selection 18 DVCC 3 3V power ...

Page 16: ... 43 P17 AD15 A15 8 15 bit address data port or 8 15 bit address port 44 P20 A0 A16 49 P25 A5 A21 8 5 bit address port or 8 21 bit address port 50 P30 External memory read control terminal 51 P31 External memory write control terminal AD0 AD7 52 P32 Data write control terminal AD8 AD15 53 P40 54 P41 55 P42 Internal address selection signal 56 P60 SCK no connection 57 P61 SO SDA I C data 58 P62 SI S...

Page 17: ...internal functional block diagram 4 STV 8217 STV 8218 brief introduction STV 8217 STV 8218 main features Full Automatic Multi Standard Demodulation B G I L D K M N Standards Mono AM and FM FM 2 Carrier and NICAM BTSC ...

Page 18: ...o output left 6 SC3_OUT_R SCART3 audio output right 7 VCC33_SC 3 3V power 8 GND33_SC Ground 9 SC1_IN_L SCART1 audio output left 10 SC1_IN_R SCART1 audio output right 11 VREFA Audio bias voltage decoupling interface 12 GND_SA Ground 13 VBG Audio bias voltage decoupling interface 14 SC2_IN_L SCART2 audio input left 15 SC2_IN_R SCART2 audio input right 16 VCC33_LS DACs power 3 3V 17 GND33_LS DACs gro...

Page 19: ...18 Digital ground 38 VDD18 1 8V power 39 SCL I C bus clock 40 SDA I C bus data 41 VSS18 Digital ground 42 VDD18 1 8V power 43 RST Reset signal input output terminal 44 S PDIF_IN No connection 45 S PDIF_OUT No connection 46 VDD33_IO1 3 3V power 47 VSS33_IO1 Digital ground 48 CK_TST_CTRL Digital ground 49 VSS18 Digital ground 50 VDD18 1 8V Power 51 CLK_SEL Clock input format selection 52 XTALIN_CLKX...

Page 20: ...ATA2 I S bus data input stereo channel 3 66 VDD18 1 8V Power 67 VSS18 Ground 68 BUS_EXP Bus expander function 69 IRQ No connection 70 GND_PSUB Ground 71 VDD18_ADC 1 8V Power 72 VSS18_ADC Ground 73 SIF_P Sound IF input positive terminal 74 SIF_N Sound IF input negative terminal 75 GNDPW_IF Ground 76 VCC18_IF 1 8V Power 77 GND18_IF Ground 78 MONO_IN Mono input 79 SC4_IN_L SCART4 audio input left 80 ...

Page 21: ...21 STV 8217 internal block diagram ...

Page 22: ...r amplifier with an output of 2 7 W at an 8 Ω load and a 12 V supply The circuit contains two Bridge Tied Load BTL amplifiers with an all NPN output stage and standby mute logic The TDA8944J comes in a 17 pin DIL bent SIL DBS power package The TDA8944J is printed circuit board PCB compatible with all other ...

Page 23: ...signation Function description 1 OUT1 negative loudspeaker terminal1 2 GND1 Ground 3 VCC1 12V Power 4 OUT1 positive loudspeaker terminal 1 5 N C No connection 6 IN1 Positive pole input 1 7 N C No connection 8 IN1 Negative pole input 1 9 IN2 Negative pole input 2 10 MODE Mode selection input standby mute operating Operation mode selection standby mute work 11 SVR Half supply voltage decoupling ripp...

Page 24: ...tion for premium contents pursuant to the High bandwidth Digital Content Protection HDCP standard The ANX9011 embeds the HDCP keys and key selection vectors to reduce manufacturing complexity and system cost Features Single HDMI receiver supporting link data rate up to 165 MHz HDMI 1 1 HDCP 1 1 and DVI 1 0 compliant WideEye architecture for signal conditioning and equalization Support multi format...

Page 25: ...iption Digital image output terminal 92 VDE23 96 VDE19 99 VDE18 101 VDE16 105 VDE12 108 VDE11 117 VDE4 121 VDE3 124 VDE0 24bit DP0 DP23 digital video output data bus 2 VDO23 5 VDO20 8 VDO19 11 VDO16 14 VDO15 17 VDO12 20 VDO11 23 VDO8 26 VDO7 29 VDO4 32 VDO3 35 VDO0 24bit QO0 QO23 no connection 119 VD_CLK Video output data clock 127 DE Video output data effective level signal 128 HSYNC Line synchro...

Page 26: ...C_SDA DDC address data signal 40 CFG_SCL I C bus clock 39 CFG_SDA I C address data 90 HDMI_DET Synchronization detection 38 DEVAD I C connection detection signal 44 HDMI_5V Cable insert detection terminal 88 RESDL Ground 43 NC 45 NC No connection HDMI 信号 input terminal 51 HDMI_CLKP 50 HDMI_CLKN Differential clock input 55 HDMI_D0P 54 HDMI_D0N Differential data input1 59 HDMI_D1P 58 HDMI_D1N Differ...

Page 27: ...lector has 4 independent input output terminals and 1 common input output terminal It is often used in analog and digital multiplexing and multi channel output selecting circuit and signal control system Feature 5V to 5V widely range Power input Low on resistance Typical break before make built in Complies with JEDEC standard no 7A ESD protection HBM EIA JESD22 A114 B exceeds 2000 V MM EIA JESD22 ...

Page 28: ...put 4 2Y3 SCART2 left audio input 5 2Y1 AV left audio input 6 E Ground 7 VEE Ground 8 GND Ground 9 S1 10 S0 Select pulse input 3 3V Power 11 1Y3 SCART2 right audio input 12 1Y0 PC right audio input 13 1Z Right audio output 14 1Y1 AV right audio input 15 1Y2 HD right audio input 16 VCC 5V Power 74HCT4052D internal block diagram ...

Page 29: ...sing passages and then sent into STV 8217 for demodulation and sound process The output audio signal of STV 8217 is sent into power amplifier TDA8944J and finally the amplified signals are sent into speaker or earphone After the demodulation and sound effect processing of STV 8217 there is an audio output which is used for sound output of Scart1 terminal 3 Power supply system There are 4 ways of v...

Page 30: ...Pin 47 86 87 FB20 2575mA U18 AZ1117H 1 8TRE1 U20 AZ1084S 3 3TRE1 3 3V U30 Sil9011 Pin 49 53 57 61 U30 Sil9011 pin 87 86 U1 SVP CX32 Pin 19 72 U1 SVP CX32 Pin 46 39 52 U1 SVP CX32 Pin 155 156 U2 IS42S32200C1 6TL Pin 1 15 29 43 3 9 35 41 49 55 75 81 U1 SVP CX32 Pin 98 108 134 146 U1 SVP CX32 Pin 165 166 U21 AZ1084S 1 8TRE1 U1 SVP CX32 Pin 12 27 53 74 96 119 136 160 U19 AZ1117H 3 3TRE1 3 3V U35 ST821...

Page 31: ... by screen less than 32 inches 5V_SB CON12 Pin1 2 IIC Bus data interface IIC Bus clock interface CON4 CON 15 CON 16 Pin 2 3 J3 VGA terminal interface voltage U1 SVP CX32 Pin 85 D7 8 BAV99L Pin 2 U14 U16 25 U31 U28 29 74LVC14AD AT24C02BN PI5C3306LE 0514M TBT Pin 14 Pin 8 Pin 8 Pin 3 U24 AZ1117H 3 3TRE1 1 8V U3 AT24C64A 10PU 2 7 Pin 8 U8 TCM809SENB713 Pin 3 U6 74ALVC573PW Pin 20 Q8 9 2SK1399 Pin１ Q1...

Page 32: ...084S 1 8TRE1 GND 1 8V 3 3V U23 AZ78L08ZTR E1 12V GND 8V 3 Pin sequence of power cord of power panel Position number Pin Pin definition Pin function discription 1 ON OFF L OFF H ON 2 3 GND GND 4 5 5V 5V 4A 6 5Vstb 5V 1A 7 8 GND GND CON1 9 10 12V 12V 1A 1 2 12VA 12V 2A 3 4 5 6 GND GND CON2 7 8 24Vio 24V 1A 1 2 3 GND GND CON3 4 5 6 24VI 24V 4A 4 Position and definition of the main components and sock...

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Page 34: ...CON15 I C 10 CON12 Power panel 5V_SB 5V_SB GND GND Power supply control 11 CON13 Standby 12 CON8 Standby 13 CON9 Speaker L L R R 14 CON10 Side AV board 15 J9 VGA audio signal input 16 J8 HD audio video signal input output 18 J4 HDMI input 19 J2 HD audio video signal input 20 J6 S terminal input 21 J3 VGA input 22 CON2 Standby 2 Main components descriptions Serial numbe r Position number component ...

Page 35: ... DC Converter N U23 AZ78L08ZTR E1 12V to 8V DC DC Converter O U26 CS4344 CZZ HDMI digital audio decoding and D A conversion P U30 ANX9011L HDMI decoding HDTV video audio reproduction Q U25 AT24C02BN 10SU 1 8 EEPROM R U28 U29 Rclamp0514M TBT HDMI signal ESD protective device S U35 STV 8217 Sound Processor T U9 74HCT4052D AV input sound passage switcher U U33 TDA8944J 2X7W Sound Amplifier BTL Output...

Page 36: ...A pin 5 6 of U31 pin 6 of U16 pin 39 of U35 pin 58 of U4 pin 40 of U30 pin 57 of U1 pin 4 of tuner U15 3 RF inputting color bar signal I C bus clock signal SDA pin 2 3 of U31 pin 5 of U16 pin 40 of U35 pin 57 of U4 pin 39 of U30 pin 58 of U1 pin 5 of tuner U15 ...

Page 37: ...te Video Signal waveform at pin 14 of tuner U15 and the waveform at pin 169 of U1 SVP CX32LF is like this 5 RF inputting white signal SIF Signal waveform at pin 11 of tuner U15 and waveform at pin 73 of sound effect processing IC Stv 8217 ...

Page 38: ...equency inductance waveforms at pin 28 29 of U35 and waveform of L26 L27 7 Inputting sound signal with 1KHz frequency with the processing of U33 and power amplifier TDA8944J waveform at pin 1 4 14 17 of U33 and waveform at CON13 speaker and CON14earphone output interfaces ...

Page 39: ...nd volume No picture no sound and indicator light is green The signal cable is not correctly connected Connect the signal cable correctly Blue screen AV or SVIDEO is displayed There is no signal input or the video cable is not connected or incorrectly connected Connect the video cable correctly Picture is unclear or shaking or with black horizontal strips in VGA mode VGA picture is not centered VG...

Page 40: ...G6 116 624 0 1 3 Mount part JUJ7 356 005 0 1 4 Mainboard part JUG6 690 106 Print plate JUG7 820 015 1 5 Remote receiving board part JUG6 695 028 Print plate JUG7 820 016 0 5 6 Keyboard part JUG6 694 029 Print plate JUG7 820 017 0 5 7 Inner power module FSP205 5E01 Inner power module 5 8 LCD screen V320B1 LXX LCD screen 0 1 9 Electronic tuner JS 6H2 121 Electronic tuner 0 5 10 Electronic tuner CDT ...

Page 41: ...grading time for software and Version LSE01 M32 V1 05WL is the version number of current software 2 The detailed setting items are given bellow Contents of first page Setting item Setting content Setting method Remark IIC Off Stop I C bus communication OK or V V key Used for updating program Clear EEPROM E PROM initialization Press OK key first then press V key Only done in first setting station P...

Page 42: ...k or not CANAL Visual On Off Open Canal function to user or not TunnerSelect XG Choose the type of Tuner Europe market only Factory Out Output the factory settings System Control Setting item Setting value Remark Setting item Setting value Default Lang English Default OSD language SSC L L AGC 5 L L sound AGC Delta 0 OverModulation On Off OverModulation switch Positive 6 PreScl SCART 8 SCART L R in...

Page 43: ...H Tnt Max E0H Bas Max 60H Shp Min 00H Shp Mid 60H Shp Max A0H White Balance Normal Warm R Gain 7DH R Gain 7DH G Gain 80H G Gain 80H B Gain 9AH B Gain 9AH R Offset 80H R Offset 84H G Offset 80H G Offset 80H B Offset 74H B Offset 74H Cool R Gain 7DH G Gain 80H B Gain 9AH R Offset 80H G Offset 80H B Offset 90H Hotel Option Setting item Setting value Remark Hotel Mode Enable No Hotel mode presetting Y...

Page 44: ...ey to enter sub directory Use P and P keys on remote control to make up or down option and use V and V keys to set 2 All the menu functions are opened in factory mode item checking and effect testing can be done by using menu if it is needed 3 Switching TV signal in factory mode can be done by directly pressing the number key Press MENU key to back to the parent of working directory press DISPLAY ...

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Page 51: ...51 Appendix 2 Power Module Schematic Diagram ...

Page 52: ...52 Final Assembly Diagram LT2618 ...

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