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service manual DV718SI

1. 4580 0209 1210 0211 Operational amplifier audio amplifying D5954 U302 Servo drive PT6961 0401 control HS0038B3V U402 Remote control rec eiver Power board coupler Precision voltage stabilizer Operational amplifier audio amplifying MIC board TDA1308 U603 Operational amplifier headphone audio ampify ing High definition MT1392E U701 HDMI control Board TVS ROLAMP0514M U703 U704 15 Section Two Unit Circuit Principle 3 2 1 Introduction to laser head 1 Function introduction to laser head flat cable is shown as the following table CD disc Function description Signal flow direction Input loader 252 Focus error signal is added to two sides of Input loader 2 49 pick up focus coil Input loader 2 53 Trace error signal is added to two sides of pick up trace coil Disc data signal Disc data signal 15 _ 000 Input loader 2 58 Input MT1389 2 2 Input MT1389 2 2 Input MT1389 0 01 Input MT1389 2 21 25 Input 1389 2 17 Input MT1389 2 19 Input MT1389 2 07 GND Ground 0 01 V20 Input loader 2 04 Through the handling inside loader make sure MD11 is 180mV when reading CD T
2. CH1 1 00 25 0ns CH1 Z 1111V 23 Mar 06 17 04 26 9978MHz 22 Reset circuit waveform diagram Tek Ji Al Ready M Pos 0 0005 SAVE REC URST 13 About Dv33 Saving Images Select Folder Save 008 8 gp CH1 1007 CH2 2 00 M 10 0ms CH1 760m Current Folder is 52 Section Five Function Introduction to IC 3 5 1 Function introduction to MT1389HD 1 Description MT1389HD U201 is a cost effective DVD system on chip SOC which incorporates advanced features like MPEG 4 video decoder high quality TV encoder and state of art de interlace processing Based on MediaTek s world leading DVD player SOC architecture the MT1389E is the 3rd generation of the DVD player SOC It integrates the MediaTek 2 generation front end analog RF amplifier and the Servo MPEG AV decoder To enrich the feature of DVD player the MT1389 equips a simplified MPEG 4 advanced simple profile ASP video decoder to fully support the DivX1 Home Theater profile It makes the MT1389 based DVD player be capable of playback MPEG 4 content which become more and more popular The progressive scan of the MT1389HD utilized advanced motion adaptive de interlace algorithm to achieve the best movie video playback It also supports a 3 2 pull down algorithm to give the best film effect The 108MHz 12 bit video DAC provides users a whole new viewing experience 2 General Feature lists 1 Integration DVD play
3. 1 Slot flap for USB 6 IR SENSOR 2 MIC jack T Display window 3 Headphone jack 8 OPEN CLOSE button 4 POWER switch 9 PLAY PAUSE button 5 Disc tray STOP button 2 2 2 Rear Panel Illustration o o Mixed Audio 5 1CH Audio Outjack S Video Video Out jack HDMI Out jack 2 5 2 2 3 LED Display Window Illustration Playback time Video Component Y Pb Pr out jacks Digital Audio Coaxial Out jack Digital Audio Optical Out jack SCART out jack C9 9 2 2 4 Remote Control Illustration 1 Open or close the disc tray 2 LANG Button Change the audio language or audio channel 3 MEMORY Button Save the playing pointor jump to the saved point 4 DISP Button Display or hide disc information 5 NUMBER Buttons 6 BROWSE Buttons switch new user interface 7 CURSOR Buttons 1 15 2 16 3 17 4 18 5 6 19 7 20 8 21 9 22 10 23 11 24 25 12 26 13 14 27 28 29 25 Stop playback Q6 mlButton Skip forward 27 USB DVD Button 28 VOL Button Increase decrease volume level 29 MUTE Button Press once to mute twice to unmate 2 3 Accessories VOG 9 24 ETUP Button Function Setup Button Open close the virtual keyboard func
4. cibi ce dio eroi tbe ee iota idet 34 3 2 16 HDMI ere rere 32 Section Three Servicing Cases 24 3 3 1 Servicing cases eene nennen niente nennen nn nennen 24 3 3 2 Troubleshooting flow Chart eene eene enne 38 Section Four Waveform diagram eene nnne 45 Section Five Function Introduction to IC peter Eres TAE ae aenea pan i Es GTI JR le ees E aaa eee 53 3 5 1 function introduction to MT1389HD 53 3 5 2 function introduction to 24 02 escrito Fera ________ 69 3 5 3 function introduction to C85340 m e 70 3 5 4 function introduction to 7Z24HCUO4 n 71 3 Bg functionintroducthon to FLASH aer 2 71 3 5 6 function introduction to SDRAM een 72 3 5 7 function introduction 04580 eerie ise einer vede 73 3 5 8 function introduction to D5954 menter m hr n er ran e cde 74 75 3 5 10 function introduction to VIPer22ADIP n 77 78 3 5 12 function introduction to 78 Soda F nction introduction t0499 Q eines 79 3 5 14 Function introduction to 1308 ein espe ities 80 3 5 15 Function introduction to 1392 eR 81 Chapter Four Disassembly and Assembly Process e 85 Chapter Cinque PCB board 8 Circuit diagram e 86 86 Section Two circuit diagram
5. 026 88 20207 1 0 85509 202 m 204 m 205 20 258 22 224 1223 8 888 88 5 1 4 Bottom layer DECODE amp SERVO Board 52 58 su 5 56 su 58 0090 000 e 89 5 1 5 Surface layer of Board 90 5 1 6 Bottom layer of Board 91 5 1 7 Surface layer of Board 92 5 1 8 Bottom layer of Board 93 5 1 9 Surface layer of Board R709 JK706 1714 7DV718 0 LEI 1713 XS702 DVD 2006 06 17 94 5 1 10 Bottom layer of Board e e gres n NJ Magen INED 0 TERRAE J 23 48 95 5 1 11 POWER Board CAUTIONFORCONTIUEBRO
6. Whether pin 4 of CN501 has power output Check 5V filtering circuit Check Whether 5V voltage outputis photoelectric coupler normal are normal Y Check peripheral elements of feedback loop N Change TLV431 or photoelectric coupler Figure 3 2 2 5 Troubleshooting flow chart for Powernot on 2 6 Troubleshooting process for Notread disc is shownin the figure 3 2 2 6 Not read disc Check Whether whether loader has N pin 26 ofAM5888S N Check whether discin feed to reset when no has feed signal proper position detectcircuit disc in input and MT1389 arenormal Y h Check whether pin 17 18 N voltage ofAM5888S Check AM5888S is normal Y Check line and elements between AM5888S and feed electric machine Observe Whether whether object lens N pin 1 58885 N Check Mt1389 and R204 has up down focus has focus signal C213 are normal action input Y Y Check whether pin 13 14 N voltage ofAM58888 is Change 58885 normal Y Check whether pin 1 2 voltage of XS301 isnormal Whether Whether nanais eicere pin 4 ofAM5888S N Check whetherMT1389 and machine rotates has signal input R201 C210 are normal Y Y Check whether pin 11 1 N voltage 58885 is Check 58885 normal Y Check electric machine Check Whether N whether APC N Check Check whether
7. FUNCTION _ ____ 2 4 1 Function Setup ect 2 4 2 Language te eee ee eee E 2 4 3 Mage ______ ________ _ ___ 2 4 5 Playback qe 2 4 6 KaraoKe ehh hh hern hh heme enne 9 247 Preference ira _____ __ ___ _ _ a qoe Xo Kou a awe TR RUPEE DU TE 10 2 4 Parental contol 2 2220 10 2 4 9 10 23 10 Restto defaults a 10 2 4 11 Exit nhe ne ne 10 10 Chapter Three Principle and Servicing 9 emen 13 Section One Principle ofthe Player eee 13 3 1 1 Functions and features ee HH emere 13 3 1 2 Block diagram ofthe player Hee eene 13 3 1 3 Introduction to IC of the player 15 Section Two Unit Circuit Principle eem mmm 16 3 2 1 Introduction to laser head eer e ______________ _ 16 EIL RS 17 3 2 3 CD DVD conversion circuit cene eaters ees 19 3 2 4 Laser power control circuit see 20 3 2 5 Open close door drive circuit HH 21 22 39 7 Decode Can ELLE m acai a e E 24 39 GUL Chote ell 4 ied Dem 25 26 ___ 26 3 2 11 Mute circuit HH Hel en 27 eee 28 3 1 13 USB jack circuit 29 3 2 14 AV output board circuit __________ _____ __ 30 sc
8. h AS 2 lt a a a ce EEEE x PUDE ee er e eec zd a 3 4 21 CM 85 4 CHE i e 8 i sz ag SET 8 T t oq 1 A NE 44 1 1 EE 8 ini 1 7 f A E a5 d USS Dd 11 58 e l h B 1 21 98 ae 44 ng T iI 1 EE do e aS 4l 22 3 amp 1 d 11 95 1 nesciun 14 222 4 4 15 0 Ja 5 1 Lop at EE v E 1 23 ey 5 5 55 25 lt 25 B 138 2 cd 2252 1 iz S 1 1 pU 5 lt 82 M M 21 2 2 9 Si 105 Chapter six List Ec AV 70 718 0 DV718SI RU SILVER 1389HD 5448709 1 3 V2 0 0090001 1 16W 00 5 0603 0090006 1 16W 750 5 0603 0090238 1 16W 680 5 0603 0090181 1 16W 1000 5 0603 0090008 SMD RESISTOR 1 16W 2200 5 0603 0090017 SMD RESISTOR 1 16W 2 2K 5 0603 0090019 SMD RESISTOR 1 16W 4 7 5 0603 0700001
9. 9 89 VSYNCH 223 E APLLVDD3 1203 89V33 3 ES HEL REVDD 89V DV33 PLLVDD3 5s NE ait 52225 R295 op E2 els ADACVDD 1204 maaan 23 238 C239 C229 BK Sle B 88 1 12 1 14 198 R209 Q305 R311 TC203 ge 750K 5 DVD 0V 478 OF C240 TC204 30048 10K Cb 222 153 105 104 100uE 10V all la d m 105 220uF 10V 3 9 15 2 E MS a 89V33 E E SUIS SIS Aie TEN beo E R310 B E SER aele ES eas eA EIS 333 334 236 5 BISA i 25 3018 100K TC209 0304 104 104 104 220uF 10V m 2 afoot he Jala 2 aala C217 201 303 cane A E SRR ERR ee e RES 10uF 16V 5301 25 3018 5 VRCD 24P0 5mm TC301 2 1 oo 5 1 220uF 10V ET 105 59442252442 5 2 5 45559755 5 5 amp lt 0 89V33 8 DACVDDB gt gt 5 E gt z lt enaaa oe 64 lt NNN ADCVDD3 IDACEXLP PLLVSS RFVDD18 RFGND18 ADACVDD2 ADACVDDI ALF CTR ALS SDATAO AL SDATA2 AR SDAT
10. 0780050 1880500 0310326 SMD CAPACITOR 50V 121x596 NPO 0603 0700004 oe REGULATOR 1 136 1 2W 0310066 SMD CAPACITOR 50V 102 10 X7R 0603 0310207 SMD CAPACITOR 50V 104 20 X7R 0603 0310543 SMD CAPACITOR 50V 10441096 X7R 0603 0310234 SMD CAPACITOR 16V 105 80 20 Y5V 0603 0090029 SMD RESISTOR 1 16W 47 5 0603 0390095 SMD MAGNETIC BEADS 5 0700056 MMBD4148SE SOT 23 0390096 INDUCTOR 1 8UH 10 1608 0390057 RH354708 0000273 1 4W330 5 SHAPED 10 0000278 FILM RESISTOR 1 4W330045 SHAPED 10 1090045 TX179ATW 1090024 TX179AT 1910078 TERMINAL 1860029 socket _____ 1 A A oleo a a 106 MATERIAL CODE MATERIAL NAME SPECIFICATIONS 0090324 RESISTOR 1 16W 00 5 0402 0090445 RESISTOR 1 16W 10 596 0402 SMD RESISTOR 1 16W 4 70 5 0402 SMD RESISTOR 1 16W 4 70 5 0603 SMD RESISTOR 1 16W 330x595 0603 SMD RESISTOR 1 16W 330 5 0402 SMD RESISTOR 1 16W750 5 0402 SMD RESISTOR 1 16W 15002596 0402 SMD RESISTOR 1 16W910 5 0402 SMD RESISTOR 1 16W3300 5 0402 SMD RESISTOR 1 16W 5600 5 0603 SMD RESISTOR 1 16W5600 5 0402 SMD RESISTOR 1 16W 1K 5 0603 SMD RESISTOR 1 16W 1 5 0402 0090377 SMD RESISTOR 1 16W 4 7 5 0402 0090020 1 16W 5 1 5 0603 R201 R285 R288 R297 R309 R311 R313
11. 16V 104 10 X5R 0402 216 218 230 236 244 252 272 02 306 262 263 2150 2151 27 4 339 2143 2144 333 334 217 50V 104 20 X7R 0603 108 CODES MATERIAL NAME SPECIFICATIONS LOCATION 0310362 0810862 smD capacitor 1 80 20 0603 220 0390453 SMD MAGNETIC BEADS GZ1005D221T 0402 R264 L205 L207 0390095 SMD MAGNETIC BEADS 0390444 SMD MAGNETIC BEADS 0390452 SMD MAGNETIC BEADS 0390096 SMD INDUCTOR 06801009 SCHOTTKY DIODE 0390274 SMD INDUCTOR 0390355 SMD INDUCTOR 4 7UH 10 1608 L203 L309 L312 0390385 SMD INDUCTOR 22uH 10 2012 L204 0700056 SMD DOUBLE DIODE MMBD4148SE SOT 23 D209 D211 0700004 A REGULATOR 5 1V 5 1 2W D205 D208 D218 ZD201 ZD203 DIODE 2607829 CD11C 10V220U 20 6x12 C5 BELT 02607819 CD 02602229 CD 2600279 CD11 16V100U 20 6x12 2 5 BELT 222 223 CD11C 10V100U 20 5x11 C2 5 BELT TC2083 TC207 TC218 TC308 TC309 TC235 TC238 CD11C 10V220U 20 6x7 2 5 BELT TC204 TC209 TC304 TC305 02607809 CD11C 10V47U 20 4x7 2 5 BELT TC208 TC219 TC302 TC303 02607799 CD11C 16V10U 20 4x7 C2 5 BELT C202 TC205 T C208 teats Leese 0880322 0880513 0882353 08828028 IC 0882644 IC 02050000 HCU04 SOP U2050000 AM5888S L F HSOP 0302 MT1389FE H HD 0201 109 MATERIAL CODE MATERIAL NAME SPECIFICATIONS HY57V6
12. 2 Introduction to SCART terminal 1 Working principle SCART terminal integrates video and audio all together and it may transmit video and audio signals at the same time The operation is convenient 21 pins in all and lies in the central part on the rear side of the player SCART terminal pin function is shown the following table Ee meme mp 1 Audio right channel input Audio right channel input channel input ae eR 127 1 oe moo poreon e mus e 7777777 NN rp mee e pem OL ma 10 CONT communication data Gimo EE 2 30 3 SCART terminal function selection is shown as the following table CVBS MODE RGB MODE Note PDATO and 2 are used to control input voltage of pin 8 of SCART terminal 1 is used to control voltage change of pin 16 of SCART terminal and the voltage on pin 16 controls SCART terminal to select RGB mode or CVBS mode 3 2 15 Panel control circuit 1 Panel control circuitblock diagram is shownin the figure 3 2 15 1 Remote IR controller Sensor U401 PT6961 Light emission diode Figure 3 2 15 1 Panel control circuitblock diagram LEDST LEDCK LEDA Decode Button 2 Working principle Panel control components are divided into main panel and
13. 71851 service manual Catalog Chapter One About Maintenance eee eee 1 1 Safety precautions lt nennen 1 1 1 _________ _ 1 d psecantiate 14 3 Precautions forlaserhead sie ice ean pa oda ia ique 1 1 4 About placement position eee 1 2 Maintenance method E Mi tee ud 1 2 4 Visualized method 1 2 3 Voltage method 1 2 4 Current method NS CU I 1 2 5 Cutting method ene eee caer dace eae messes 1 2 6 Element substitution Method 1 2 7 Comparison method 1 3 Required device for maintenance m ce Chapter Two Functions and Operation Instructions Dn 2 2 Control Button Locations and Explanations eem 111 eee eee 5 5 2 Pear 20 222212227172227727711 227721727222772 2 2 3 LED Display Window Illustration mmm eem Remote Control LU CER QD 2 3 Accessories qa PR Prud add Cao ar Ye EP eq RR ean aia Fa Wa Eee PU Ea Rp V kde Ka
14. gt 105 UGOIB 21 4558 m Xs PHONEJACK4 RO2 COB Te 51 103 Js 201 PDAT2 R713 ORONS AGND R716 _ORIDNS R712 22K DNS VGND VGND 10V V703 8050 DNS AGND 0701 114148 N 0702 N IN4148 AGND VCC SVV L715 FCM D703 1N4148 2 VCC D704 1N4148 2 R705 4TK DNS P AGND SVV D705 ol l 726 C725 C705 C706 102 102 756 121 121 1713 GND 153921 1 705 0000000 55 prog AV VCS XS703 545 0000000 1 YUV6 XS704 2 GND XS5 3 YUVS 4 GND 5 YUV4 0000000 1392 DACVDD3 744 104 SLRCK SBCLK SACLK SDATAO SDATA2 SDATAI ASDAT3 ASPDIF YUV6 YUV5 YUV4 104 560R C746 8724 80 79 78 77 76 75 74 73 72 71 5 70 69 66 E NS 39 e Rd 5 65 5 em C7 EM 2 R718 EN 5 1392 AVDD3 1392 50 DLL EA 50 11 OR c YO 48 Yl 5 y m ac YS 23 Y6 42 747 562 HGND 225 xo 1008 _ Hoi OR 2 00 V601 URST a e DV33 E 751 HDMI 5701 505 1718 FBSMT 0000000 1715 DV33 C736 ICA 104 220uF 16V Aeey 1 HGND 104 104 HGND L717 DV33 Dr 1390 42 743 Tc7ol 104 104 220uF 16V HGND 1392 AVDD3 Lee 1392 DACVDD3 703 TVS
15. 1389 laser head emitslight circuit supplies voltage whether LDO DV33 is R201 C210 arenormal for laser head normal Y Y Y Change loader 43 whether LDO DV33 is normal N Check whether MT1389and R201 C210 isnormal Check whether 1001 is normal Load disc and observe whether disc rotation speed is normal Whether there is RF signal Change loader and check whether it is normal Check MT1389 andperiphera elements Whether ABCDEF signal is normal Check 5301 andflat cable Check MT1389 andperipheral elements Figure 3 2 2 6 Troubleshooting flow chart Notread disc A4 Section Four Waveform diagram This section collects signal waveform diagram of audio video and each unitcircuit with the purpose to help servicing personnel to judge where trouble lies in accurately and quickly to improve servicing skills For the difference of oscillograph s type model and tuner a certain difference may exist so the servicing personnel are expected to pay more attention to check in daily operation 1 Waveform diagramfor pulse DC of power board D513 anode Tek SIL Stop M Pos 0 0005 SAVE REC 1 Saving Images Select Folder Save CH1 5 004 10 005 CH1 7 46V Current Folder is v 2 RFO signal waveform diagram of pin 17 of XS301 Tek JL Stop M Pos 0 0005 SAVE REC Acti
16. 602 ime CTI 1980046 EARPHONE SOCKET ST 301 030 100 GROUND CHIP OF POWER 3870115 BOARD AB903 G601 G602 DV718SI RUQ SILVER 1389HD POWER BOARD 5448711 C C C C C C C C S S K P K 619 619 619 619 619 605 605 0260237 CD CD11 10V1000U 20968x14 3 5 TC601 TC601 01 Q C601 601 603 602 606 601 113 CODE MATERIAL NAME SPECIFICATIONS LOCATION 1000043 GRID FILTER UT 20 40mHz209610x13 UL 02002249 PORCELAIN CAPACITOR 1000V 103 8095 2095 7 5mm BLET 0200359 CERAMIC CAPACITOR 250V 22151096 10mm 02001389 PORCELAIN CAPACITOR 50V 104 20 5mm BELT 02001369 PORCELAIN CAPACITOR 50V 473 20 5mm BELT 0010159 2W39K 5 SHAPED FLAT 15x7 114 0210207 TERYLENE CAPACITOR 275V 104 20 15mm 00700169 1 2W680K 5 BELT 1564443 5DV985 2 UL 3031856 CONTROLLERSURFACE RC026 05R BLACK BOTTOM CASING OF BATTERY CASE DOOR OF GLASS OF REMOTE 3850126 ANODE CATHODE SPRING RC026 HERI 115 MATERIAL CODE MATERIAL NAME 3072182 LAMP BRACKET 1340003 0000619 1 6W130K 5 BELT 1940022 4P 2 0mm 3072183 DV985 TRANSPARENCE 0620203 43PC COLORLESS ISSUE BLUE 2 4 PROGRAM FLASH ROMDV718SIRU 0A 16M 0911767 29LV160BE 70PFTN TSOP 0881650 0881651 116
17. Q301 25 1132 5 MD1 20 21 5301 20 1389 0302 25 1132 5 TC303 47uF 16 4 7R R302 LDO AV33 Figure 3 2 4 1 Laser power control circuit diagram 2 Working principle Pin 20 21 of MT1389 is laser power detect signal input pin pin 21 is DVD laser power strong weak detect signal input pin pin 23 is VCD laser power drive control output pin pin 22 is DVD laser power drive control output pin 20 When reading VCD disc laser power becomes weak voltage of decreases voltage decrease of pin 23 of MT1389 makes voltage of pin 19 of XS301 increase to reach the purpose of raising laser power When laser power is too strong voltage of MDII pin increases to lead to voltage of pin 23 of MT1389 increase to make voltage of pin 19 of XS301 decrease to reach the purpose of reducing laser power to form an auto power control circuit When reading DVD disc pin 21 is detect signal input pin pin 22 is drive control input pin and the working principle is the same with that when playing VCD disc 3 Key point voltage unit V is shownas the following table Read DVD disc Read VCD disc Read DVD disc Read VCD disc 3 2 5 Open close door drive circuit 1 Open close door drive circuit is shown inthe figure 3 2 5 1 R203 27K SIBY R202 15K EC __ SP LOAD 58885 LOSE MT1389 IK SLbt S
18. decode by and then send to analog output terminal digital audio output signal ASPDIF is directly send to digital output terminal Analog video signal and digital video signal sent by 1389 are sent to MT1392bE 0701 for processing and digital audio signal is sent to MT1392E MT1392E is a format conversion processor which switches normal audio and video signals into HDMI standard format HDMI switches 8 bit data into 10 bit signal through decoding and outputs in the means of differential transmission Audio and video signals transmit through 3 TMDS data channels Signals outputted from MT1392E are directly sent to HDMI jack to fulfill HDMI output The working principle of HDMI jack is to transmit digital high definition signals without any damage with advantages that no extra loss in the course of transmission digital signal and analog signal can be transmitted at the same time transmission speed may be increased resolution is not controlled by SXGA usage is simple ans cost is reduced Digital video signal YO Y7 outputs from pin 157 165 of 1389 to send to pin 13 20 of 1392 8 channel digital audio signals output from pin 197 202 203 209 212 of 1389 to send to pin 73 79 of 1392E and YNC digital audio ASPDIF of 1389 outputs from pin 216 to send to pin 72 of 1392E Pin 182 185 183 of 1389 output analog video signal R G B which are sent to pin 68 70 71 of 1392E Clock signal 1392 VCK of 1392 is produced by 1389 and outputs from pin 166 the
19. stabilizing circuit Check whether 27M clock is normal Check clock circuit Whether reset is normal Check reset circuit Check whether SDRAM and FLASH power supply i normal Check power supply loop and filtering circuit Check whether SDRAM and FLASH power supply i normal Check whether SDRAM is normal Change MT1389 or SDRAM Whether firmware is normal Check whether SDRAM clock is normal whether FLASH and MT1389 have rosin Figure 3 3 2 1 Troubleshooting flow chart for Power not on 38 2 Troubleshooting process for Video has output is shownin the figure 3 2 2 2 Video has no output Check whether output mode switch is correct Restore setup mode Check Check whether 27M clock is normal Restore setup mode output part is normal Change MT1389 Check component video output circuit Whether component video has output Whether pin 187 of MT1389 has signal output Whether composite video has signal output Change MT1389 Check whether JK703 has signal output Change JK703 Check video filtering circuit Figure 3 2 2 2 Troubleshooting flow chart for Videohas no output 39 3 Troubleshooting process for sound output is shown inthe figure 3 2 2 3 No sound output Whethe
20. 0 479 02 428 0310 State Base electrode B Collector C Readdisc disc Open disc CAE poem ET EET Open disc tray disc tray 0 0 0 063 0 0 342 0 12 0 3 2 6 Main axis control circuit 1 Main axis control circuit is shown the following figure 3 2 6 1 C307 222 OPO R318 08 ADIN R317 680K MT1389 C308 222 R322 680K Figure 3 2 6 1 Main axis control circuit diagram 22 2 Function disc is always high speed rotation in the course of disc reading when you need to open the door to change disc MT1389 stops the positive direction drive signal which is given to main axis drive circuit forthe function of inertia disc is still rotating If disc out orderis performed at this time disc will be abrasively damaged Therefore machine must be baking to main axis that whether disc has stopped rotating and whether disc is reversing decode chip of the machine cannot recognize So a main axis control circuit is added to make decode chip can effective monitor that whether disc has stopped rotating 3 Working principle MT1389 has a comparator inside composed of operational amplifier in which OP is the in phase input end of operational amplifier OP is reverse input end OPO is output end when playing disc normally for electric machine is positive direction rotating voltage of OP is higher than that of OP voltage of OPO is more than 1 4V When disc out is needed ma
21. About Saving Images 1 Select Folder Save 008 8 CH1 100 M 1 00205 CH1 345mVv 5 06 03 26 1 23833MHz 8 Waveform diagram of pin 29 when no disc in of U207 FLASH Tek M Stop M Pos 0 0005 SAVE REC Action mage Format About Saving Images Select Folder Save CH1 1 005 M 250ns CH1 7 345mw 5 06 03 30 lt 10 2472 9 Waveform diagram of 8 0208 SDRAM Tek BUR Trig d 0 0005 SAVE REC Action Save Image File A Format i About 1 Saving Images Select 7 Folder Vpp 2 46V 003 8 CH1 500 M 5 00ns CH1 13 3mV 23 06 17 06 123 536MHz 10 Video signal waveform diagram Tek Stop Pos 220 0us SAVE REC Action Save Image File Format 1 About 1 Saving Images Select Folder Save TEKOO04 BMP CH1 500m 2 50ms All Current Folder is A 11 ACLK 12 2878MHZ waveform diagram for external clock signal Tek TTE Stop M Pos 0 0005 SAVE REC Action Save Image File Format About 2 Saving Images Select Folder Save CH2 1 00 M 50 0 5 CH2 47 28 4mV Current Folder is 48 12 ABCK 3 07195MHZ waveform diagram for bitclock signal Tek PIA Stop M Pos 0 0005 SAVE RE
22. DVD ROM CD ROM Decoding Logic High speed ECC logic capable of correcting one error per each P codeword or Q codeword Automatic sector Mode and Form detection Automatic sector Header verification Decoder Error Notification Interrupt that signals various decoder errors Provide error correction acceleration 8 Buffer Memory Controller Supports 16Mb 32Mb 64Mb SDRAM Supports 16 bit SDRAM data bus 54 Provides the mode SDRAM Block based sector addressing 9 Video Decode Decodes MPEG1 video and MPEG2 main level main profile video 720 480 and 720x576 Decodes MPEG 4 Advanced Simple Profile Support DivX 3 11 4 x 5 x Home Theater Profile Support Nero Digital Smooth digest view function with 1 P and B picture decoding Baseline extended sequential and progressive JPEG image decoding Support CD G titles 10 Video OSD SPU HLI Processor Arbitrary ratio vertical horizontal scaling of video from 0 25X to 256X 65535 256 16 4 2 color bitmap format OSD 256 16 color RLC format OSD Automatic scrolling of OSD image 11 Audio Effect Processing Dolby Digital AC 3 EX decoding DTS DTS ES decoding 1 layer 1 layer 2 audio decoding MPEG 2 layer1 layer2 2 channel audio High Definition Compatible Digital HDCD Windows Media Audio WMA Dolby ProLogic Concurrent multi channel and downmix out 60958 61937 output POM bit stream mute mode Custom IEC latency up to 2 frames Pink noise and white noise generator Karaoke fun
23. R 0090385 SMD RESISTOR 1 16W 10K 5 0402 324 R329 R330 R364 R2105 R2109 R2123 R2128 0090387 SMD RESISTOR 1 16W 12K 5 0402 1940026 SOCKET 1940024 SOCKET 1940075 SOCKET 2100010 LEAD 2100003 LEAD 2100004 LEAD 2100006 LEAD 0090457 0090507 0090106 0090005 0090330 0090336 0090759 0090338 0090350 0090012 0090356 0090014 0090362 107 2016 MATERIAL SPECIFICATIONS LOCATION 0090389 0090391 0090394 0090395 0090034 0090398 0090408 0090001 0090412 0090429 0100019 0090668 0310415 0310190 0310424 0310432 0310392 0310726 0310207 0310234 0310201 0310394 0310068 0310454 0310794 0310570 0310795 0310482 SMD RESISTOR SMD RESISTOR SMD RESISTOR SMD RESISTOR SMD RESISTOR SMD RESISTOR SMD RESISTOR SMD RESISTOR SMD RESISTOR SMD RESISTOR SMD RESISTOR NETWORKS PRECISION SMD RESISTOR SMD CAPACITOR SMD CAPACITOR SMD CAPACITOR SMD CAPACITOR SMD CAPACITOR SMD CAPACITOR SMD CAPACITOR SMD CAPACITOR SMD CAPACITOR SMD CAPACITOR SMD CAPACITOR SMD CAPACITOR SMD CAPACITOR SMD CAPACITOR SMD CAPACITOR SMD CAPACITOR 50V 1024 1096 X7R 0402 DE 35 2117 2122 705 7 207 209 211 214 225 227 229 253 254 264 265 279 281 301 313 314 316 338 345 346 2131 2149 2158 2137 2142 2145 2148 2152
24. burst mode in low load condition Over voltage protection in hiccup mode 2 FEATURES FIXED 60 KHZ SWITCHING FREQUENCY 9V TO 38V WIDE RANGE VDD VOLTAGE CURRENT MODE CONTROL AUXILIARY UNDERVOLTAGE LOCKOUT WITH HYSTERESIS HIGH VOLTAGE START UP CURRENT SOURCE OVERTEMPERATURE OVERCURRENT AND OVERVOLTAGE PROTECTION WITH AUTORESTART 3 PIN DESCRIPTION Symbol SOURCE Power MOSFET source and circuit ground reference Feedback input Power supply of the control circuits Power MOSFET drain SOURCE Power MOSFET source and circuit ground reference 77 Power MOSFET drain Power MOSFET drain Power MOSFET drain 3 5 11 Function introduction to P H817 PH817 U502 is a photoelectric coupler shown as the figure 3 5 11 1 The right side is a light emitting diode which sends out light of different intensity according to the strength of voltage inputted from the right side generates photocurrent of different intensity on the left side according to light of different intensity and outputs from position D The higher of the voltage inputted from the right side the stronger of the light emitted from light emitting diode and the larger of the photocurrent produced from position D The lower of the voltage inputted from the right side of photoelectric coupler the weaker of the light emitted from light emitting diode and the weaker of the current outputted from position D Figure 3 5 11 1 PH8
25. communication format between 1389 and 1392E is Pe 2 bus from pin 101 102 of 13898 to pin 21 22 of 1392E Line synchronous signal HSYNC and filed synchronous signal VSYNC outputted by 1389 from 179 181 are sent to pin 38 39 of 1392E Pin 110 of 1389 outputs signal to send to pin 27 of 1392E to fulfill the control to 1392E HDMI_SCL HDMI SDA are display data channel which outputs from pin 103 104 of 1389 to HDMI jack DDC display data channel is responsible to report information about the setup and performance of receiving device to other device which needs E EDID Enhanced Extended Display Identification Data that reads receiving device to fulfill 33 Section Three Servicing Cases 3 3 1 Servicing cases Example 1 Symptom power not on Description insert power plug standby indicator light is not on and the player cannot be switched on Analysis and troubleshooting test power board 5V 3 3V voltage and they are normal check decode board 1389 chip power supply and they are 3 3V and 1 8V which is normal use oscillograph to check clock frequency 27MHZ crystal oscillator of 1389 chip and observe whether oscillation frequency is normal we find that crystal oscillator has trouble after changing it trouble is removed Example 2 Symptom power not on Description insert power plug standby indicator light is not on and the player cannot be switched on Analysis and troubleshooting test power board 5V 3 3V vol
26. data output bit 7 2 While no External TV encoder INT3 Output 1 Microcontroller external interrupt 3 ASDATA 4MA SR Audio serial data 5 part Il DSD data sub woofer channel or Microphone output GPIO 1 Horizontal sync input output 2 While no External TV encoder INT4 Output Horizontal sync for video input V_ADIN2 4MA SR Il Version AD input port 2 GPIO IV Microcontroller external interrupt 4 Video Interface 12 InOut 4mA CVBS Analog composite output n DACVDDB Power Power 3 3V power pin for video DAC circuitry DACVSSB Ground Ground pin for video DAC circuitry DACVDDA Power 3 3V power pin for video DAC circuitry InOut 4mA Green Y SY or CVBS 168 Y G SR DACVSSA Ground Ground pin for video DAC circuitry InOut 4mA 170 B CB PB Blue CB PB or SC SR R CR PR InOut 4mA Red CR PR CVBS or SY Tr DACVDDC VREF A o 65 ly il 5 12 InOut 108 PRST Power on reset input active low PD SMT w e Dm me mem a Dm 000000 Le wem mem eem 00 TU T RN L owe Dm OOOO OOOO EI NK Dram Interface 58 Sorted by positio n IO O RD1 1 Digital Video output C bit 0 176 InOut 2 IO 1 RD1 1 Digital Video output C bit 1 InOut Non pull 2 GPIO IO 2 R
27. duty factor Eleven segment output lines six grid output lines 1 segment grid output lines one display memory control circuit key scan circuit are all incorporated into a single chip to build a highly reliable peripheral device for a single chip microcomputer Serial data is fed to PT6961 via a fourline serial interface Housed a 32 pin SO Package PT6961 assignments and application circuit are optimized for easy PCB Layout and cost saving advantages 2 FEATURES CMOS Technology Low Power Consumption 75 Multiple Display Modes 12 segment 6 Grid to 11 segment 7 Grid Key Scanning 10 x 3 Matrix 8 Step Dimming Circuitry Serial Interface for Clock Data Input Data Output Strobe Pins Available in 32 pin SOP Package 3 PIN DESCRIPTION A Lx p mem 226 3 5 10 function introduction to VIPer22ADIP 1 DESCRIPTION The VIPer22A U501 combines a dedicated current mode PWM controller with a high voltage Power MOSFET on the same silicon chip Typical applications cover off line power supplies for battery charger adapters standby power supplies for TV or monitors auxiliary supplies for motor control etc The internal control circuit offers the following benefits Large input voltage range on the VOD pin accommodates changes in auxiliary supply voltage This feature is well adapted to battery charger adapter configurations Automatic
28. parental control ratings to prevent children from watching the restricted contents In case the disc supports this function Optional setting any PG PG 13 PGR R NC 17 Default any 2 Set password To set four digit password to enable you to change the parental control ratings 2 5 Specifications Playerable discs ZDefault 7890 Old password _ Verify OK 2 4 9 Initial setup Auto PAL NTSC Press UP DOWN arrow to select the desired option and Press OK button to confirm it NOTE In this setup state you may not press LEFT button to return tothe previous menu 2 4 10 Rest to defaults Load factory settings OK Cancel Reset to defaults To restore all settings to the default value exceptfor the parental control and password settings 2 4 11 Exit Language Image Sound Playback Parental control Initial setup Reset to defaults Exit Press UP DOWN arrow to select the Exit item Press OK button to exit the setup menu DVD Video Super VCD DivX 3 11 DivX 4 DivX 5 Divx Pro XviD CD DA CD G DVD Audio HDCD MP3 Kodak Picture CD JPEG MIC input Analog audio output Audio outputs Digital audio output 10 Stereo output 5 1CH Coaxial Opcical DVD Video Super VCD VCD DivX 3 11 DivX 4 DivX 5 Divx Pro XviD CD DA CD G DVD Aud
29. subsidiary board parts Main panel is mainly composed of LED screen drive chip PT6961 remote control IR sensor buttons and indicator light and subsidiary boardis mainly composed of power button and power indicator light Function of 0401 PT6961 is to process data signals sent from decode board and then drive display screen to display the relevant state and scan panel buttons matrix at the same time then process button information and send to CPU in the means of digital signals to control the player to make the relevant action Pin 2 of remote control IR sensor HS0038B3V is 5V power supply pin pin is grounded pin 3 is output pin After receiver processes button information of remote control it outputs from pin 3 to send to decode board directly 31 3 2 16 circuit 1 HDMI circuit block diagram is shown in the figure 3 2 16 1 Source refers to device with HDMI output jack and Sink refers to device with HDMI input HOUSE Source HDMI Sink Video 5 ChnanelO Audio gt gt TMDS Chnanel 1 TMDS Chnanel2 Control Status Control Status 194HUJSDJ 19AIG 28 TMDS Clock Chnan l Display Data Chanriel Figure 3 2 16 1 HDMI circuit block diagram 2 Working principle besides from normal AV output this player also has HDMI output Normal AV output is the same with that of other normal DVD players process the analog audio and video signals
30. 00 5 0603 0090018 RESISTOR 1 16W 3 3K 5 0603 0090028 SMD RESISTOR 1 16W 5 0603 0090224 SMD RESISTOR 1 16W 9 5 0603 0090184 SMD RESISTOR 1 16W 4 3 5 0603 0090020 SMD RESISTOR 1 16W 5 1 5 0603 0090023 SMD RESISTOR 1 16W 10K 5 0603 R606 R610 R635 R636 SMD RESISTOR 1 16W 22K 5 0603 SMD RESISTOR 1 16W 56K 5 0603 SMD RESISTOR 1 16W 100K 5 0603 SMD CAPACITOR 50V 101559 NPO 0603 CD CD11C 10V100U 20 5x11 C2 5 SMD CAPACITOR 50V 10231096 X7R 0603 SMD CAPACITOR 50V 10341096 X7R 0603 SMD CAPACITOR 50V 104 20 X7R 0603 ipe SMD CAPACITOR 25V 104209 X7R 0603 602 0604 0602 0623 6626 062 SMD CAPACITOR 50V 10441096 X7R 0603 SMD CAPACITOR 16V 105 80 20 Y5V 0603 CARBON FILM RESISTOR 1 6 10 596 SHAPED 7 5 MAGNETIC BEADS INDUCTOR RH354708 BELT CARBON FILM RESISTOR 1 6W3 3K 5 SHAPED 7 5 0090026 0090030 0090034 0310047 0260781 0310066 0310072 0310207 0310222 0310543 0310234 0000118 03900579 0000339 112 WERT mee _ 0000134 FILM RESISTOR 1 6W5 1K 5 SHAPED 7 5 uo uuo uo ue 0260201 0260021 3 n 260175 CD CD11C 16V100U 20 15 6x7 2 5 0260352 CD GS 10V1000U 20 8x14 3 5 0700020 SMD VOLTAGE REGULATOR 6 2 5 1 2W 20601 DIODE MI TC620 TC620 TC620 TC620 TC620 000 u 000 000
31. 17 outside drawing 3 5 12 Function introduction to LM431A LM431A 0503 is a 2 5V comparator shown as the figure 3 5 12 1 Compared the inputted voltage of R end with 2 5V when voltage of R end is more than 2 5V KA end is on and photoelectric coupler starts to send out photocurrent when voltage of R end is less than 2 5V KA end is cutoff and photoelectric coupler does not send out photocurrent CPU 3 3V in power board circuit must be kept in 3 3V for the function of comparator No matter more than or less than 3 3V through on and off status of comparator it will control the on state of the output end of photoelectric coupler LM431A to adjust the output space occupation ratio of switch module to control the output voltage of transformer and masthead the power A Figure 3 5 12 1 LM431A outside drawing 3 5 13 Function introduction to 4558 1 Description The RC4558 and RM4558 devices 0601 are dual general purpose operational amplifiers with each half electrically similar to the A741 except that offset null capability is not provided The high common mode input voltage range and the absence of latch up make these amplifiers ideal for voltage follower applications The devices are short circuit protected and the internal frequency compensation ensures stability without external components The RC4558 is characterized for operation from 0 to 70 C and the RM4558 is characterized for operation over the full military temperature range
32. 330 nO C316 ViPS 27 USBP cu 104 SIBY 28 FOSO USBM 2 USB VDD3 1 R33 iod iouPl6V ROUT ADINA 122 33 MW ADINS TRCLOSE 89V33 V180 mu VPLLV33 A 56 158 137 a CH x 135 RASF 5 3 60 134 CASE 21 IOA6 133 WEE IOA7 132 DO vor 1 0 is 150 IMT IOAI9 129 19301 2 cl DV33 89V33 5 8 R207 560R A D30 YJ 1N4001 5382 1235 244 45 246 248 249 250 N 1 PB 104 104 04 i04 104 104 2 RENT TR 1 8 281 104 R314 Q306 SS8550 TC308 100uF 10V SS8550 558550 cf cn SSRIS Lo bo XO Ay BY Co DS ba 1 89 33 lt 1 TRO FOO 152 189 187 18 Lm 77 176 175 174 1661 16 158 157 1561 155 153 13 138 137 135 133 12 10 1 19 18 1219 C231 232 0233 0234 235 104 104 104 104 104 AGND VGND 66 R2111 30K is in 89 AR TC240 10uF 16V 102 10uF 16V Ray
33. 41620HGT 7 TSOP EIE SMD SUBMIT MEET WITH 45P 0 5mm SMD VERTICAL REVERSE MEET WITH CLASP 1633428 2DV718 2 E Bwonessron cAPACTTOR smo caraciron 00 0881415 JIC 0881742 0881947 JIC CMETAL OXIDE FILM 0960020 RESISTORSTAL OSCILLATOR 07803199 TRIODE 05700039 DIODE 1940022 SOCKET 1940024 SOCKET 1940005 SOCKET 1940023 SOCKET 1940008 SOCKET 1940075 SOCKET 1940094 CABLE SOCKET 1940289 CABLE SOCKET 1910129 TERMINAL SOCKET 1910079 TERMINAL SOCKET 0090012 SMD RESISTOR 1 16W 5600 596 0603 R724 0310199 SMD CAPACITOR 50V 562 10 X7R 0603 C747 0310066 SMD CAPACITOR 50V 10241096 X7R 0603 C752 740 742 746 749 750 751 736 10207 SMD CAPACITOR 209 1 1 0310207 SMD C CITO 50V 104 20 X7R 0603 c7390 000 740 742 746 749 750 751 736 0310543 SMD CAPACITOR 50V 10441096 X7R 0603 c7390000 110 MATERIAL CODE MATERIAL NAME SPECIFICATIONS 1608 221 05 CD11 16V220U 20 6x12 2 5 SMD RESISTOR 1 16W 1000 5 0603 MT1392 QFP C EDITION 45P 0 5mm SMD VERTICAL REVERSE MEET WITH CLASP 3072182 LAMP BRACKET DV985 I 30x4 8x8 20x6x4 5 SINGLE DN FACED HARD CD11C 16V100U 20 6x7 2 5 0390095 SMD MAGNETIC BEADS 0260028 0090181 0882969 1940289 CABLE SOCKET 1940024 SOCKET 0620002 RADIATION DIODE 1200788 LEDDISPLAY SCREEN 2360019 SENSOR 5230389 SOFT
34. 5 TSSOP and 8 2 5 3 Description Serial Data input 69 Serial SCL input Test port Positive Power Supply 3 5 3 function introduction to CS5340 1 DESCRIPTION The CS5340 U203 is complete analog to digital converter for digital audio systems It performs sampling analog to digital conversion and anti alias iltering generating 24 bit values for both left and right inputs in serial form at sample rates up to 200 kHz per channel The 55340 uses a 5th order multi bit delta sigma modulator followed by digital filtering and decimation which removes the need for an external anti alias filter The CS5340 is ideal for audio systems requiring wide dynamic range negligible distortion and low noise such as set top boxes DVD karaoke players DVD recorders A V receivers and automotive applications 2 FEATURES Advanced multi bit Delta Sigma architecture 24 bit conversion Supports all audio sample rates including 192kHz 101dB Dynamic Range at 5V 94 dB High pass filter to remove DC offsets Analog digital core supplies from 3 3V to 5 Linear phase digital anti alias filtering Auto mode selection Pin compatible with the 55341 3 PIN DESCRIPTION o a 0000 wm 0 ow a e 000000 GND NEN GND 70 3 ow om o eem o om em
35. 817 P C270 12 102 13 AGND 15 VIDEOR R213 16 R92 17 39V R214 R293 OR 1 Ex GND Ry SR SL PINI I4 0 SCARTI PINIO 16 R292 R2939 0 00 00 0 PINIL20 PIN490 0 0 ASDAI3 R360 OR ASDATSH 836 UR ASDATIR ASDA _ R362 OR ASDATAM ASDAIU R363 0 ASDATOR XS205 R277 FBSMT C USB SW GND XS208 DV33 505 GND 18 000 13920 000 1 2 GND XS209 3 DV XS04 4 VIS 000 399000 1251 USB 5V 550 Cc FBSMT C332 C297 105 104 JK701 AV82 5 5 1 703 V OUIS JK703A S VIDEO 101 D401 0402 HS0038B3V R405 100R TC402 C403 100uF 16V 104 1 bios VCC VOC VCC LEDST LEDCK LEDAT D409 D410 D41 1N4148 SEDNS 1N4148 SEDNS 98 seon D412 1N4148 SEDNS 1N4148 K403 open close XS402 play pause XS04 2 0 120R R407 120R R408 120R R409 00000 154148 prog NVOS AHA CCS COL TC617 625 4TuF 16V R631 3 9K 9 616 47uF 16V prog DIN ETS XR TC615 4TaF 16V TC601 1000uF 10V 20601 62V 0 5W C623 104 47uF 16V 56K an ASV 18 80500 605 T 10V 100U R623 SEN ME 10K id 5 1K 1 C624 C625 18P DNS 18P DNS C606 101 1601 R64 6 1 FBSMT 2 5
36. 97 Chapter SIXA BOM 106 Chapter One About Maintenance 1 1 Safety precautions 1 1 1 Power supply When maintenance personnel are repairing DVD players he should pay special attention to the power board with 220V AC and 330V DC which will cause hurt and damage to persons 1 1 2 Precautions for antistatic Movement and friction will both bring static electricity which causes serious damages to integrated IC Though static charge is little when a limited quantity of electric charge is added to large scaleintegrated IC as the capacitance is very small the meantime nowthe integrated IC is very much easy to be struck through by static electricity or the performance will decrease Thus static electricity prevention is of extraordinary importance The following are several measures to prevent static electricity 1 Use a piece of electric conduction metal with the length of about 2 metres to insert into the earth and Fetch the lead wire from the top of the surplus metal and connect to the required static electricity device The length and depth of the metal embedded under the earth should be determined according to the wettability of the local soil For humid places it may be shorter and longer and deeper for dry places If possible it can be distributed and layed in terms of shape 2 On operating table board the antistatic table cushion should be covered and grounded 3 All devices and equipments shou
37. A9VO 12008 100K 4580 0205 L R2112 R28 2SC1815 YS DV33 DV33 Q206 TC247 89 AL 25 815 5 1K IK TC241 10uF 16V 18 10uF 16V 1N4148 JN SIIN4148 R2113 30K SEND R2139 TC248 89 ARS 10uF 16V eem SPLRCK U2RST ALRCK 1 SLRCK R2149 2 SBCLK 100K 8265 SACL 0207 4 AMDAIA 2SC1815 YS DV33 33R R2150 100K Q208 25 1815 5 R21 249 89 ALS R288 C2158 10K U203 TC243 C2120 10uF 16V pia CS5340 pow TC250 89 SW 244 TC220 C339 m 10uF 16V 1008 16 102 104 Ter 10uF 16V Q209 2SC1815 YS 9V A9V R2152 B om C2138 2139 C2137 25 1815 R2146 TC251 T 104 104 104 100uF 16V TC245 10uF 16V 102 9V A9V AGND C2146 _ 2147 2148 25 100uF 16V 104 104 104 100 D204 IN4148 DV33 0212 25 1815 5 235 100uF 10V AGND 1N4148 R2105 R2108 R2109 10K 10K 001 5207 19 545 20 000 13920 000 YUV4 YUVS YUV6 GND GND ASPDIF GND ASDAT3 ASDATI ASDAT2 ASDATO SACLK SBCLK SLRCK C3 CS C6 GND VCLK GND YO 12 Y4 YA 89_HSYNC 1 R223 89_VSYNG 2 Dv33 4 A YUV6 3 GND 0 R228 YUV4 7 5 1K GND 8 YUVS 9 SPDATA FSI 10 XS204
38. AL ARS SDATA3 ARF SW ADACVSSI ADACVSS2 APLLVSS APLLCAP APLLVDD3 MC DATA ASDATA3 DACVDDC YUVO CIN 192 ASDATA2 GPO 0 ASDATAI GPO 1 RVREF GPIO 6 ASDATAO GPO 2 TT 1 0 104 0301 D C204 105 2SB1132 S C205 105 E R302 Us LDV33 LDV3 C 1 BSM 20 TC303 C345 C346 B amp __13 47uF 10V 10 184 5 5 f 104 104 D 5 _ Q302 r 16 P A 25811995 14 180 _ 179 91 178 E 20 45 17 DVSS a5 721 E 18 2 41 1 319 20 0 2581132 ar 18 Dp 15 S 23 _20 yl DVDDI8 p 715 gt C317 C318 3 C208 IDOI 4 C302 C303 104 105 105 TT 104 104 25 5 5 7 103211 10322 COO 6 104 105 105 V2P8 25 YUVCLKAO 8 166 20 9 10 11 9 TK 15 162 TKF 16 EC 101 SL 17 SP C214 11 104 34 0201 DVDD18 L315 18 SPF SONA FB 19 LOAD OP 36 MTI389HD sooo 138 MOVO 20 LOAD DMSO R201 10K 16 1 21 R202 K 3 __56 C304 _ 305 306 Ls RA4 2 TC218 30 GND PWMOUTIV_ADIN9 100uF 10V 104 104 1104 MO 23 TROPEN 10K T 151 51 REGOLI 21022 12212 213 du TR B2 25 T 55 REG 153 i03 331 231 VPLLV
39. C Actio About Saving Images Select Folder Save CH2 1 00 M 500ns CH2 28 4mV Current Folder is 13 ALRCK 48KHZ waveform diagram for left right channel clock signal Tek Stop M Pos 0 0005 SAVE REC Action Save Image File Format About Saving Images hue Select Folder Save 002 8 CH2 1 00 250 8 CH2 28 4 23 05 20 30 47 3336 2 14 SDATAO waveform diagram for mixed left right channel digital signal Tek ZI Stop M Pos 0 0005 SAVE REC Action Save Image File Format About Saving Images Select Folder Save 003 8 CH2 1009 2508 CH2 1 627 23 05 11 50 527 076kHz 49 15 SDATA1 waveform diagram for surround left right channel digital signal now the disc being played is 2 1CH andthis signal has nooutput if 5 1CH the form is the same with that of SDATAO Tek Stop 0 0005 SAVE REC Action Save Image File Format About Saving Images Select Folder TEKOO13 BMP CH1 1 00V M 500 5 CH1 7 1562mVv 4 06 08 38 lt 10Hz 16 SDATA2 waveform diagramfor centresubwoofer digital signal Al Stop M Pos 0 0005 SAVE REC Action Save Image File Format About Saving Images Select Folder Save 005 8 CH2 100v M10 0us CH2 2 1 684 Current Fold
40. D SRPD SMT 2 8032 RS232 RxD InOut 4mA 1 Microcontroller port 3 1 zx X SRPD SMT 2 8032 RS232 TxD 1 Microcontroller port 3 4 InOut 4mA 2 Hardwired RD232 RxD SRPD SMT 3 clock pin 1 Microcontroller port 3 5 InOut 4 16mA 2 Hardwired RD232 TxD SRPD SMT 3 data pin Input SMT IR control signal input InOut 4 16mA Microcontroller external interrupt 0 active low SRPD SMT Audio interface 28 1 Audio DAC master clock of SPDIF input 2 While SPDIF input is not used SPMCLK 1 Serial interface port 0 clock pin GPIO 1 Audio data of SPDIF input SPDATA SDINO Inout 2 While SPDIF input is not used 61 1 Serial interface port 0 data in GPIO 1 Audio left right channel clock of SPDIF input SPLRCK SDOO Inout 2 While SPDIF input is not used 1 Serial interface port 0 data out Il GPIO 1 Audio bit clock of SPDIF input SDCSO 2 While SPDIF input is not used ASDATA Inout 1 Serial interface port 0 chip select 5 Audio serial data 5 part DSD data sub woofer Channel or Microphone output 11 GPIO 1 Audio left right channel clock InOut 4mA 2 Trap value in power on reset PD SMT 1 use external 373 Il 0 use internal 373 InOut 4mA 1 Audio bit clock SMT 2 Phase de modulation InOut 4mA Audio DAC master clock SMT 1 Audio serial 0 Front Left Front Right 2 DSD data left channel InOut 4mA 3 Trap value in power on r
41. D1 1 Digital Video output C bit 2 InOut Non pull 2 GPIO IO 3 RD1 1 Digital Video output C bit 3 InOut Non pull 2 GPIO 4 RD2 1 Digital Video output C bit 4 InOut Non pull 2 GPIO 5 RD2 1 Digital Video output C bit 5 InOut Non pull 2 GPIO e RD2 1 Digital Video output C bit 6 InOut Non pull 2 GPIO IO 7 RD2 1 Digital Video output C bit 7 InOut 2 GPIO 8 D 1 Digital Video output Clock YUVCLK InOut Up 2 GPIO 66 IO 9 RD2 1 Digital Video output Y bit Non pull 2 GPIO 1 Digital Video output Y bit Non pull 2 GPIO 1 Digital Video output Y bit Non pull 2 GPIO 1 Digital Video output Y bit Non pull 2 GPIO 1 Digital Video output Y bit Non pull 2 GPIO 1 Digital Video output Y bit Non pull 2 GPIO 1 Digital Video output Y bit 6 Non pull 2 GPIO 1 Digital Video output Y bit 7 Non pull 2 GPIO 155 InOut DRAM address 4 67 oO A A g m A UJ o E E JTAG Interface 4 1 Serial interface port 3 data out TDI V ADINA InOut Non pull 2 Version AD input port 4 3 GPIO 1 Serial interface port 3 data out TMS ADIN5 InOut Non pull 2 Version AD input port 5 3 GPIO CD 1 Serial interface port 3 data out V ADING InOut Non pull 2 Version AD input port 6 3 GPIO 1
42. English Estonian Latvian Kazakh Romanian Byelorussian Ukrainian Chinese Others Default Off 2 4 3 Image TV scan mode Video out TV format Sharpness Gamma Brightness Contrast Hue Saturation 1 TV system This item is used tothe video output system of this unit Optional setting Auto PAL NTSC Default AUTO 2 TV scan mode To set Progressive scan Interlaced scan mode Optional settings Progressive Interlaced Default Interlaced 3 Video output To set the types of SCART out connector Optional setting Component SCART Default Component When using RGB outputs from the SCART interface please select RGB Otherwise please select Com ponent 4 TV format To the aspectratio of this player s output image Optional setting 4 3 Pan scan 16 9 letterb 16 9 TV Wide SQZ Default 16 9 TV 5 Sharpness Used to set the sharpness of video outputs Optional setting High Medium Low Default Medium 6 Gamma emendation This item is used to setup the Gamma value of video output Optional setting High Medium Low Off Default Off 7 Brightness Used to set the brightness of video outputs 8 Contrast Used to set the contrast of video outputs 9 Hue Used to setthe hue of video outputs 10 Saturation Used to setthe saturation of video outputs Brightness contrast hue and saturation adjusting means A Press UP DOWN arrow inthe video setu
43. IC Mt1389 and drive circuit Am58888 in which Mt1389 is also the main part of decode circuit Servo circuit block diagram is shown inthe figure 3 2 2 1 5717 ___________ switchcircuit 2 circuit 1389 electric machine Main axis electric machine Open close circuit Main axis control detect circuit Figure 3 2 2 1 Servo circuit block diagram 2 Working principle after power on or close to proper position loader laser head begins to reset after laser head reaches proper position detect switch will give a signal to Mt1389 Mt1389 begins to output focus main axis and light emission signals machine begins to rotate laser head begins to identify disc information and decide whether disc is CD or DVD according to disc information to facilitate to output level from IOA pin to make disc switch circuit and laser head PD IC make the relevant control action Atthe same time Mt1389 adjusts laser output power through laser power control circuit After loader reading disc information A B C D E F signals are formed through photo electric conversion and sent outto Mt1389 DVD only has C D signals and then inputted from pin 2 11 18 19 of MT1389 After being amplified and processed by the pre amplifier inside MT1389 now signals are separated to two part s for processing inside Mt1389 One part through addition inside Mt1389 and amplifying and subtraction
44. L TROPEN R314 R201 10K 10K EOSO R204 97K Figure 3 2 5 1 Open close drive circuit diagram 2 Working principle when machine is reading disc normally 6 7 9 10 of AM58888 is OV After pressing OPEN button pin 6 inputs high level pin 10 LOAD outputs high level electric machine rotates positively and performs the action of opening door When closing door pin 7 inputs high level pin 9 LOAD outputs high level and forms loop to pin 9 through electric machine electric machine rotates reversely and performs action of closing door After closing to proper position all pins are low level Servo drive principle isthe same with that of D5954 solution so we will not introduce here 21 3 Key point voltage unit V is shownas the following table Q306 Q307 State Base electrode B Collector C Base electrode B Collector C Readdis disc _ 506 06 506 06 51 01 5 508 505 06 Open disc trayto proper position Open disc tray 4 74 5 05 4 74 4 76 0 2 4 76 4 76 4 33 4 76 Close disc tray 4 74 4 33 4 74 4 76 5 05 4 76 4 76 5 03 4 76 4 79 0 2 4 79 0308 0309 Base electrode Collector C Base electrode B Collector C Readdisc disc 5 508 Open disc AN 22 Open disc disc tray 0 0 0 093 0 476 02 46 76 0 2 4 76 020 479 502 479 79 gt 5 02 gt 4 7 4797805478
45. MediaTek MT1392E U701 is a multi resolution HDMI transmit processor which incorporates video scaler high definition TV encoder audio sampling rate converter audio packer HDCP processor and HDMI transmltter This IC can accept digital video in various definition including standard definition video such as 480i 576i 480p 576p and high definition video such as 720p 50 59 94Hz 1080i 5059 94Hz and converts the standard definition video into high definition ones MT1392 can support up to 8 channel 125 or SPDIF It is also fully compatible with DVI 1 0 HDMI 1 0 and HDCP 1 1 2 Features High Definition Video Process Support 480i 576i 480p 576p digital video input According to CCIR656 or CCIR601 spec Support 720p 50 59 94Hz 1080i 50 59 94Hz digital video input According to SMPTE 293M spec Programmable scaler converts standard definition video to 720p 1080i high definition video TV encoder support 480p 576p 720p 10801 50 and 59 94Hz component analog output including RGB and YCbCr Audio Input Formats Support Industry standard S PDIF for digital audio using IEC 60958 2 channel PCM and compressed encoded audio data DTS AC3 MPEG Audio using IEC 61937 format Support I s audio interface up to 4 channels 2 Sampling rate conversion for stereo S audio HDMI amp HDCP Fully backward Compatible with DVI and compliant with HDMI 1 0 DVI1 0 EIA CEA 861B HDCP 1 1 Integrate High Bandwidth Content
46. Protection HDCP 1 1 for both video and audio 2 Optional C master interface for HDCP key set loading Serial Interface 2 slave programming interface Outline 80 pin LQFP package 3 3 1 8 Volt Dual operating voltages 3 PIN Description DVSS GND Digital ground 81 Normal Digital chroma input 2 9 C0 C7 VDAC test DAC test mode 0 7 input BIST mode BIST data input DVSS Digital ground Normal Digital input 13 20 0 7 VDAC test DAC test data 0 7 input BIST mode BIST address input SSCK Normal Slave serial interface clock input SCAN mode scan reset active low m 5 Se 9m om rema 26 XTAL DVSS x x Digital ground Power ON Serial interface address 7 AT GPOO BIST mode SRAM fail output Normal General purpose output Normal clock input VDAC test VDAC test clock input Power ON Hardware trap Bit 2 TRAP2 GPO2 BIST mode SRAM output Normal General purpose output Power Hardware trap bit 1 BIST mode SRAM fail output Normal General purpose output Power Hardware trap Bit TRAPO GPO4 BIST mode SRAM fail output Normal General purpose output Masterl2C Master serial interface clock output Power ON Serial interface address 6 30 A6 GPO1 BIST mode SRAM fail output Normal General purpose output 82 MSCK GPO5 BIST mode SRAM fail out
47. RCLAMP0514M TVS 514 JK708 HDMETYPEA peog 5 2 6 POWER Board CN502 XS05 2 0 CN501 gt XS0620 AP 2 3 4 GND ADDED GND 5 gt 0503 gt 8 8 2 2 6 2 E eg uw al 53 gt gt 1 4 SI EC L 211 al 8 1 8 EE 4 11 44 825883 Lao 2 E T E T HMM S wu 13 1 5252 5 gt 5 2i P al 5 FI PME m ge Ly 83 4 95 shy 4 1 r1 el te IESI jj NEU 41 01 las lt n n EI g r IS 5 2 BC BE 1 4 bal Id zl 4 1 3 q i ce 88 2 45 E al ce JL L1 i 11 CHEE 2 1 p or ice co ail i J 1411
48. SPONGE SPACER 0260201 CD 0881687 IC SN1692 SOP LIGHT TOUCH RESTORE 1340003 SWITCH HORIZONTAL 6x6x1 RADIATION DIODE ISSUE BLUE VD404 VD402 VD403 0620203 5235043 SOFT SPONGE SPACER 8x6x11 DOUBLE FACED HARD 7P130 2 0 2 PIN WITH NEEDLE XS401 REVERSE 304 CORD 4P210 2 0 2 PIN WITH NEEDLE TOGETHER DIRECTION 304 CORD 2122382 FLAT CABLE 2122383 FLAT CABLE 3072183 LIGHT CAP DV985 TRANSPARENCE 0390095 SMD MAGNETIC BEADS FCM1608K 221T05 0780085 SMD TRIODE 8050D o o 0700007 SMD DIODE 1N4148 1 0090023 SMD RESISTOR 1 16W 10 5 0603 SMD RESISTOR 1 16W 5 1 5 0603 SMD RESISTOR 1 16W 3300 5 0603 SMD RESISTOR 1 16W 1200 5 0603 SMD RESISTOR 1 16W 1000 5 0603 20 20 2 T 0090020 0090009 0090221 0090181 111 MATERIAL CODE MATERIAL NAME SPECIFICATIONS SMD RESISTOR 1 16W 51K 5 0603 SMD CAPACITOR 16V 104 10 0603 SMD CAPACITOR 50V 10231096 X7R 0603 SMD VOLTAGE REGULATOR 5 1V 5 1 2W D414 0090192 0310057 0310066 0700004 1633102 PCB 4DV985 1 9 o m lt 2 2 eo r lt m 2 CD I e OK BOARD 5448710 0090009 SMD RESISTOR 1 16W 3300 5 0603 R601 0090012 SMD RESISTOR 1 16W 5600 5 0603 R604 0090014 SMD RESISTOR 1 16W 1 5 0603 R608 R625 R626 0090001 SMD RESISTOR 1 16W
49. Serial interface port 3 data out V ADIN7 InOut Non pull 2 Version AD input port 7 3 GPIO 68 Po 4 3 5 2 function introduction to 24 2 1 Description The 24 02 0202 provides 2048 bits of serial electrically erasable and programmable read only memory EEPROM organized as 256 words of 8 bits each The device is optimized for use in many industrial and commercial applications where low power and low voltage operation are essential The 24 02 is available in space saving 8 lead PDIP 8 lead MAP 8 lead TSSOP and amp ball dBGA2 packages and is accessed via 2 wire serial interface In addition the entire family is available in 2 7V 2 7V to 5 5V and 1 8V 1 8V to 5 5V versions 2 Features Low voltage and Standard voltage Operation 2 7 VCC 2 7V to 5 5V 1 8 1 8V to 5 5V Internally Organized 256 x 8 2K 2 wire Serial Interface Schmitt Trigger Filtered Inputs for Noise Suppression Bi directional Data Transfer Protocol 100 kHz 1 8V and 400 kHz 2 5V 2 7V 5V Compatibility Write Protect Pin for Hardware Data Protection 8 byte Page 1K 2K Write Modes Partial Page Writes are Allowed Self timed Write Cycle 5 ms High reliability Endurance 1 Million Write Cycles Data Retention 100 Years Automotive Grade Extended Temperature and Lead Free Devices Available 8 lead PDIP 8 lead JEDEC SOIC 8 lead MAP 5 lead SOT23 9 3
50. TECTION AGAINST RISK OF ONLY WITHSAME TYPE F501 T1 6A L250V FUSE BC505 22 8 BCNS02 501 220V 220V 5DV985 2 LEI DVD 2006 06 15 L501 BC501 BCN503 w F501 T1 6AL 250V 96 L6 1 16MBit FLASH TSOP 48 17 1208 77 45 0 279 1219 ADT 104 47uF 10V eje sls BE 38 37 36 35 i 29 28 __ 27 26 21 R231 OR DNS AA21 1 DV33 5 m 1218 3 TD C261 SDRAM 64M DV3 SD33 4 104 2140 C2141 C2142 2143 C2144 C2145 C2152 9V VCC DV33 104 104 104 104 104 104 104 2151 2150 pes R221 104 104 4TuF 10V On 1220 FBSMT bt 0201 Ld ae IN4148 2SC1815 YS R239 215 5608 10uF 16V VOD s TC305 TC304 220uF 10V 220uF 10V 5 0209 1N4148 2 D217 AGND VGND R246 C283 C284 9 1V 0 5W 75R 101 101 1 VGND XS201 syy 507 1226 1 8uH YUV2 VIDEO SC D205 D210 ZI S 1V 0 5W 1N4148 2 101 VGND SVV 1227 1 8uH VIDEO_CVBS D211 1N4148 2 C287 C288 758 101 101 U205F U205E VGND VGND HCUO4 HCU04 5 C s 0M J 296 LDV3 RFVIS B 3 R30 A B 202 105 ZIR C230 A C203 ASDATA4 A 3 A e n JIFO C219 391JIIEN 89
51. channel 0 1 N VDAC test VDAC test data bit 8 input BIST mode BIST write pulse N Normal S PDIF clock VDAC test VDAC test reset active high 25 bit clock 125 Left Right channel flag Power of digital 1 8V N 84 Chapter Four Disassembly and Assembly Process DVD players manufactured in BBK are largely identical but with minor differences and are mainly composed of loader components control panel components decode and servo board components power board components power amplifier board components MIC board components and AV board components In order to speed up the compilation of Service Manual we shall not give repeat explanation to model with minor differences in chapter four Disassembly and Assembly Process for the later compiled service manuals For disassembly and assembly process in this chapter please refer to chapter 4 of DK1005S Service Manual or DK1020S Service The pictures of this model are shown asfollows 85 Chapter Cinque PCB board amp Circuit diagram Section One PCB board 5 1 1 Surface layer of KEY SCAN Board 5 1 2 Bottom layer of KEY SCAN Board 87 5 1 3 Surface layer of DECODE amp SERVO Board 1207 1205 82151 6 143 5 gl a 8 0202 du gt
52. circuit produces servo error signal after being processed by digital servo signal circuit corresponding servo control signals form to output FOO TRO DMO FMO digital servoControl signals from pin 42 pin 41 pin 37 pin 38 of Mt1389 respectively and FOSO TRSO DMSO FMSO through integration circuit composed by resistor capacitor and send to servo driver circuit for amplification to bring along focus winding trace winding main axis electric machine and feed electric machine after drive amplification Among these focus and trace servo are used to correct objective position accurately feed servo is used to bring along laser head to make radial large scale move which belongs to the preliminary adjustment to laser head position and main axis servo is used to control main axis electric machine to make it read signals in means of constant linear velocity and bringAlong disc to rotate After processing of amplification by VGA voltage control amplifier and 218 equalization Frequency compensation inside 1389 another part of signals are changed into digital signals through internal A D converter When loader is reading CD VCD signals these signals are conducted EFM demodulation inside MT1389 and then outputted to latter stage for AV decoding after finishing CIRC Cross Interleaved Reed Solomon Code error correction inside When loader is reading DVD signals these signals are conducted ESM demodulation inside MT1389 and then sent to latter s
53. ctions Microphone echo Microphone tone control Vocal mute vocal assistant Key shift up to 8 keys Chorus Flanger Harmony Reverb Channel equalizer 3D surround processing include virtual surround and speaker separation 55 12 Four 108MHz 12bit DACs Support NTSC PAL BDGHINM PAL 60 Support 525p 625p progressive TV format Automatically turn off unconnected channels Support PC monitor VGA Support Macrovision 7 1 L1 Macrovision 525P and 625P CGMS A WSS Closed Caption 13 Progressive Scan Video Automatic detect film or video source 3 2 pull down source detection Advanced Motion adaptive de interlace Minimum external memory requirement 14 Outline 216 pin LOFP package 3 3 1 8 Volt Dual operating voltages 3 Pin Definitions m wee m wwe Pee o 7 7277 7271 Current reference input It generates reference current 255 IREF Analog input path Connect an external 15K resistor to this pin and AVSS wm pom e rome em 00 s 9 pemeemammb 0 s pomme 56 ND TT NN 00 Dm vm 00000000 ome 0 Analog monitor
54. diagram and audio circuit explanation for details 3 2 8 Video circuit 1 Video signal flow chart diagram is shown as in the following figure 3 2 8 1 Figure 3 2 8 1 Video signalflow chart 2 Working principle MT1389E has built in video D A conversion circuit video output has R B G Y Pb Pr Y Cb Cr CVBS Y C output mode in which R B G Y Pb Pr Y Cb Cr Y C cannot output at the same time and need the switch through software CVBS is a separate output mode 4 path video signal outputted by MT1389 through video filtering clamping output to AV board Shown as in the figure 3 2 8 2 capacitor C287 C288 and inductor L214 compose a low pass filter to filter high frequency disturbance signal except useful signal dual diode D211 composes a limiter circuit known from features of diode that the max amplitude of composite video signal CVBS cannot be over 5 7 and the mix cannot be less than 0 7 thus the high voltage signal from TV set can be avoided burning down the player 101 101 VGND VGND Figure 3 2 8 2 Video output circuit 25 3 2 9 Reset circuit 1 Reset circuit is shown in the figure 3 2 9 1 R221 URST 47uF 10V C272 1N4148 104 D201 Figure 3 2 9 1 Reset circuit diagram 2 Working principle after power on voltage of DV33 increases to 3 3V main chip power supply is normal because voltage of DV33 cannot change suddenly Q201 base electrode has current in Q201 is saturated on URST is low lev
55. e ON meremur 0 59 InOut 4 16mA gt gt 19 N g N gt N 5 gt Flash address 18 SRPD SMT InOut 4 16mA o Flash address 19 IO SRPD SMT 5 Flash address 20 IO InOut 4 16mA 6 While External Flash size lt 1MB SRPD SMT 1 Alternate digital video YUV output 0 7 Flash address 21 InOut 4 16mA 51 8 While External Flash size lt 2 SRPD SMT 1 Digital video YUV output 7 II GPIO InOut 4 16mA Microcontroller address latch enable SRPD SMT InOut 4 16 N Flash output enable active low IO SRPD SMT InOut 4 16mA Flash write enable active low SRPD SMT InOut 4 16mA Flash chip select active low SRPD SMT 60 InOut 4 16 Microcontroller write strobe active low SRPD SMT InOut 4mA c Microcontroller read strobe active low SRPD SMT InOut 4 16mA Microcontroller port 1 2 SRPD SMT InOut 4mA Microcontroller port 1 3 SRPD SMT InOut 4mA Microcontroller port 1 4 SRPD SMT InOut 4mA Microcontroller port 1 5 SRPD SMT InOut 4mA 1 Microcontroller port 1 6 A SRPD SMT 2 clock pin InOut 4mA 1 Microcontroller port 1 7 SDA SRPD SMT 1 data pin RXD SCL RXD SDA InOut 4mA 1 Microcontroller port 3 0 ET e C
56. ed item you want to set and press OK For example press UP DOWN arrows to select IMAGE and press OK The Image setting page appears on thescreen TV system TV scan mode Video out TV format Sharpness Gamma Brightness Contrast Hue Saturation 4 Press UP DOWN arrow to select the SHARPNESS item Press OK to confirm it And then press UP DOWN arrow to select the desired valus For example Press UP DOWN arrow to select Medium then press OK the TV screen display TV system TV scan mode Video out TV format Sharpness Gamma Brightness Contrast Hue Saturation 5 Press LEFT button if you want to return to the previous setup page 6 Press SETUP exit the setup menu 2 4 2 Language Setup menu DVD menu Soundtrack Sbutitles MN 1 Setup menu This item is used toset the prompts language on the screen Optional setting Russian English Ukrainian Default English 2 DVD menu To set the preference disc menu lang when playing Optional setting Russian English Estonian Latvian Kazakh Romanian Byelorussian Ukrainian Chinese Others Default English 3 Sountrack To set the preference audio language when playing Optional setting Russian English Estonian Latvian Kazakh Romanian Byelorussian Ukrainian Chinese Others Default English 4 Subtitles To set the preference subtitle language when playing Optional setting Off Russian
57. el DV33 charges TC208 through R219 and Q201 emitter electrode to make TC208 cathode voltage decrease slowly When this voltage reduces below 0 7V Q201 cuts off URST changes into high level and the process for URST from low to high is called low level effective reset signals by us After power off DV33 voltage reduces TC208 and DV33 voltage reduce together D201 performs surge discharge and clamping to Tc208 3 2 10 Audio circuit 1 Audio circuit block diagram is shown in the figure 3 2 10 1 ASPDIF olpnV SLRCK AMDATA CS5340 OK MIC board Figure 3 2 10 1 Audiocircuit block diagram 26 2 Working principle MT1389 has built in DAC conversion circuit which stimulates audio signals to output from decode chip directly through audio amplifying and filtering circuit directly output audio signals to audio terminal Another path of L R signal outputs to headphone circuit of MIC board for processing and then output headphone 3 External Karaoke input and output Trough 55340 A D conversion circuit MIC signals switches to digital audio signals to input to decode chip for echo and volume processing and then output together with audio signals L R to fulfill the purpose of Karaoke 3 2 11 Mute circuit 1 Mute circuit is shown in the figure 3 2 11 1 D204 1N4148 Q214 DV33 Figure 3 2 11 1 Mute circuit 2 Working principle of quieting circuit When the
58. el to adjust c Press UP DOWN navigation keys to raise lower volume of the channel d Press OK or LEFT to return to the Mix setup page F Delays To set delay time of the Center Surround Subwoofer Speaker A Press UP DOWN navigation keys to select Delays in Channels item then press OK or RIGHT navigation key select ENTER SETUP PAGE as shown in the TV screen Subwoofer Ocm gt Center LS RS 180cm b Press UP DOWN navigation keys to Select the desired item oup Press OK or RIGHT button to enter setting c Press UP DOWN navigation keys to raise or lower volume D Press OK or LEFT to return to the Delays in channels setting page G PRO Logic To set PRO Logicllto ON OFF If the TITLE does not supportthis function we recommend that you set this item to AUTO because it would become worse if the processing effects were added forcibly Optional setting AUTO On Off Default AUTO 2 Digital output selectto set the format and stream form of digital audio output A SPDIF format 3Optional setting RAW format SPDIF PCM RAW format B LPCM Optional setting 48 kHz 16bit 96 Khz 24bit 192kHz 24bit Default 48 kHz 16bit NOTE If HDMI Audio is set in ON this item is not adjustable 3 HDMI Audio This 15 to set whether the HDMI Audio output is allowed Optional settings SPDIF Multi Channel off Default Multi 4 Tuning A Max vol
59. er is 17 1KHZ audio signal output waveform diagram it is suggested to use test disc if not waveform tested will change at any time which will affect your judgment Tek BN Trig d 0 0005 SAVE REC Action BMP About 1 Saving Images Save Image File Format Select Folder Save 009 8 CH1 50 0mV M 500 us CH1 1 01mVv 20 06 20 01 1 05822kHz 50 18 LEF waveform diagram for subwoofer channel analog signal Tek 2 Tria d M Pos 0 0005 SAVE REC About 1 Saving Images Select Folder Save 002 8 CH1 50 0m M 1 00ms CH1 47 0 004 25 06 10 13 33 3053Hz 19 AMDAT waveform diagram for microphone signal after 5340 A D conversion About Saving Images Select Tek IL Stop M Pos 0 0005 Folder Save TEKOO11 BMP CH2 100v M 5 00us CH2 47 1 5mV 23 05 14 56 102 20 SPDIF waveform diagram for optical coaxial digital audio signal Tek EIS Stop M Pos 0 0005 SAVE REC Action Save Image File Format BMP About Saving Images Select Folder Save 2 5 0mVv 1 005 CH2 27 20 7 Current Folder is 51 21 27 signal waveform diagram Trig d 0 0005 SAVE REC Action m 1 Images 1 Select Folder Save YPP4 6
60. er single chip High performance analog RF amplifier Servo controller and data channel processing MPEG 1 MPEG 2 JPEG video Dolby AC 3 DTS Decoder Unified memory architecture Versatile video scaling amp quality enhancement OSD amp Sub picture Built in clock generator Built in high quality TV encoder Built in progressive video processor Audio effect post processor Built in 5 1 ch Audio DAC 53 2 High Performance nalog RF Amplifier Programmable fc Dual automatic laser power control Defect and blank detection RF level signal generator 3 5 Performance on Servo Channel Decoding DVD ROM up to 4XS CD ROM up to 24XS 4 Channel Data Processor Digital data slicer for small jitter capability Built in high performance data PLL for channel data demodulation EFM EFM data demodulation Enhanced channel data frame sync protection amp DVD ROM sector sync protection 5 Servo Control and Spindle Motor Control Programmable frequency error gain and phase error gain of spindle PLL to control spindle motor on CLV and CAV mode Built in ADCs and DACs for digital servo control Provide 2 general PWM Tray control can be PWM output or digital output 6 Embedded Micro controller Built in 8032 micro controller Built in internal 373 and 8 bit programmable lower address port 1024 bytes on chip RAM Up to 2M bytes FLASH programming interface Supports 5 3 3 Volt FLASH interface Supports power down mode Supports additional serial port 7
61. eset ASDATAO PD SMT 1 1 manufactory test mode 1 0 normal operation 4 While using external channels 2 2 Audio serial data 0 Front Left Front Right 2 DSD data right channel 3 Trap value in power on reset InOut 4mA ASDATA1 1 1 manufactory test mode Il 0 normal operation 4 While using external channels 1 2 1 Audio serial data 1 Left Surround Right Surround 2 DSD data left surround channel InOut 4mA ASDATA2 3 Trap value in power on reset e CD 1 manufactory test Il 0 normal operation 62 4 While using external channels GPO 1 1 Audio serial data 2 Center LFE 2 DSD data right surround channel 3 Trap value in power on reset InOut 4mA 1 1 manufactory test mode II 0 normal operation 4 While only 2 channels output 0 1 Audio serial data 3 Center back Center leftback Center right back in 6 1 or 7 1 mode INT1 InOut 4mA 2 DSD data center channel ASDATA4 PD SMT 18 While only 2 channels output 1 Digital video YUV output 6 GPIO 1 Microphone serial input INT2 InOut 2mA 2 While not support Microphone 215 MC_DATA PD SMT 1 Microcontroller external interrupt 2 Output SPDIF 4 16mA S PDIF output SR ON OFF muse mue E ADACVSS1 Ground pin for AUDIO DAC circuitry 1 AUDIO DAC Sub woofer channel ou
62. evel And the emitter electrode changes to high level due to discharge of TC235 now Q214 is on Q214 collector electrode AMUTE outputs high level to add to base electrode of switch pipe Q205 Q210 switch pipe is saturated noises that produce in the course of power off is bypassed to ground that is power off quieting function is realised 4 Key point voltage unit V is shown as the following table 3 2 12 Power circuit 1 Power circuit block diagram is shown the following figure 3 2 12 1 9V LED 5V Rectification Filtering 5V Rectification Filtering 3 3V Rectification Filtering Rectification HOST GND Power grid filtering Absorption loop Switch IC JawJOJsuel Feedback winding Photoelectric coupling 10291014 Sampling circuit Figure 3 2 12 1 Power circuit block diagram 2 Working principle 1 Power grid filtering circuit various electromagnetic radiation exists in surroundings so it will produce interference to the inputted AC power and the function of power grid filtering circuit is to filter these interference to make those that enter bridge rectification circuit are pure 220V AC power 28 2 Bridge rectification and filtering circuit the function of this circuit is to converse electric supply into DC power the voltage after being rectified and filtered is 1 414 times of input power so t
63. he DC voltage at the two ends of TC501 is about equal to 300V 3 Absorption loop for power is always working in on off state and will produce very high peak voltage in order to well protect switch IC a peak absorption loop is added 4 Filtering circuit the function is to produce a stable and slamm wave DC voltage In filtering circuit type filter is mostly adopted The feature of capacitor filtering is high load resistance when current is small filtering is obvious but inductor filtering is small load resistance when current is large filtering is obvious To compose capacitor into TI type filter can make better filtering effect 5 Feedback loop the time length of on and off within the same cycle inside switch module VEPR22 is decided by feedback loop Feedback loop performs sampling to 3 3V output stage voltage when output stage voltage is too high the sampled voltage is on high side through feedback loop to change the duty ratio of pin 3 signal of VEPR22 and reduce on time and output voltage begins to reduce When output voltage istoo low the sampled voltage is on low side through feedback loop to make duty radio of VEPR22 increase output voltage increases through the function of feedback loop power board is made to output stable voltage The used LM431 in this power is 2 5V comparator sampling voltage is compare with this 2 5V voltage when sampling voltage is more than 2 5V means that output voltage is on
64. he normal feed act is to bring laser head to make small distance movement but feed range of trouble machine is nearly up to frame terminal so firstly check feed circuit and capacitance of C211 becomes small after changing capacitor trouble is removed Example 8 Symptom surround has no waveform Description surround has no waveform output Analysis and troubleshooting check pin 1 7 of U210 and there is waveform output check Tc248 Tc249 and they both have waveform output when checking Q207 Q208 we find that Q207 has rosin joint after welding again trouble is removed Example 9 Symptom disc reading is slow Description when reading CD DVD disc it is slow Analysis and troubleshooting when checking nerve line and nerve line jack we find that resistance 35 Value two ends ofnerve line and nerve line jack is large change nerve line jack XS301 trouble is removed Example 10 Symptom not read disc Description not read any discs Analysis and troubleshooting notread any discs observe laser head action carefully and find there is no focus action test focus signal outputted by decode chip and it is normal this signal is m normal until 5888 so change 5888 of the same model trouble is removed Example 11 Symptom power not on Description 5V 9 9V 3 3V have no output Analysis and troubleshooting check power board and find each path voltage has no output check and find 220V voltage in
65. high side LM431 is on light emitting diode in photoelectric diode begins to emitlight to make the other end of photoelectric coupler begin to be on light emitting diode is stronger the on degree bigger the on time of switch module VEPR22 decreases output voltage begins to decrease When sampling voltage is less than 2 5V means output stage voltage is on low side Lm431 is cut off on time of VEPR22 increases output voltage increases Thus through auto control function of feedback loop power board is made to output stable voltage 3 2 13 USB jack circuit 1 USB jack circuit block diagram is shownin the figure 3 2 13 1 USBM XS601 Figure 3 2 13 1 USBjack circuit block diagram 2 Working principle USB jack is composed of two data lines of USBP and USBM one power supply line USB5V and grounding line outside casing Pin 48 49 of MT1389 is USB data jack which outputs to USB jack through 5601 can read data inside USB device 29 3 1 14 output board circuit 1 AV output board is mainly composed of audio video output terminal SCART output terminal mode switch circuit and filtering circuit AV output board outputs different signals to connect with the corresponding external equipment AV output board circuit block diagram is shown as in the following figure 3 1 14 1 Component video output terminal Optical terminal L Figure 3 1 14 1 AV output board circuitblock diagram
66. hrough the handling inside loader make sure MD11 is 180mV when reading DVD CD laser power control signal CD and DVD laser power monitoring signal High frequency overlapping signal produces laser with different wave length inside loader Vcc Input loader 5 04 E Input MT1389 2 06 Blanking haning in air 0 01 VR CD Input loader 0 21 VR DVD Input loader 0 01 LD CD Input loader 20 MDII Input MT1389 0 21 21 Input loader 2 34 0 46 2 49 0 93 2 51 0 94 2 51 0 93 2 25 2 04 3 2 2 04 3 2 3 2 2 53 1 28 2 22 2 04 2 27 2 04 2 44 2 03 0 01 2 06 2 03 5 04 5 02 2 45 2 03 0 01 0 2 2 1 0 2 5 04 5 02 16 LD DVD Input loader 221 DVD laser power control signal Note 1 When reading DVD there only A B D signals 2 When reading CD there are A B C D E F signals 3 RFO A B C D 4 Focus error signal A C B D Trace error signal E F 2 Working principle 1 Laser tube wave length of loader DVD laser diode is 650nm wave length of CD laser diode is 790nm the wave length which is within 370nm and 750nm is visible light the laser in the course of reading DVD disc is visible light and that when reading CD 41815 infrared light 2 Principle about laser head picks up signal laser beam projects onto disc when laser beam focus projects onto disc vertically laser beam will produce reflection reach on light sensor through reflectio
67. in axis drive signal stops for electric machine is permanent magnetic when in rotating induced electromotive force produces in two ends to give to decode chip through R320 R319 sampling to make OPO output less than 1 4V voltage and transmit to input pin of MT1389 ADIN through R318 When ADIN is high level main axis drive output end has not any drive signal output when ADIN is low level MT1389 outputs a reversing drive signal to main axis drive circuit to make main axis electric machine speed down Thus circular working goes on until main axis stops rotating PDVD is manual disc out means so after disc out disc is still rotating but will stop very son 4 Key point voltage unit V is shown as the following table 23 3 2 7 Decode circuit 1 Decode circuit block diagram is shown asin the following figure 3 2 7 1 MT 1389 0 07 0000 0915 0 11 1 8V Reset voltage circuit regulating U206 Figure 3 2 7 1 Decode circuit block diagram 2 Working principle this decode circuit is mainly composed of MT1389 SDRAM and FLASH Working condition of decode circuit has 1 Reset refer to reset circuit working principle for details 2 Clock this system adopts 27M external clock input and produces clock signal required by system inside through internal frequency doubling circuit 3 Power decode chip adopts twp groups power s
68. io HDCD WMA Kodak Picture CD JPEG Analog audio output Stereo output 5 1CH upinis Audio Digital audio output Coaxial Opcical Video outputs Composite S Video component Y Cb Cr progressive scan Outputs output Y Pb Pr RGB SCART Headphones output Video amplitude 1 0Vp p 75 Q S Video amplitude Y 1 0Vp p 75 C 0 286Vp p 75 0 Component Video amplitude Y 1 0Vp p 75 Q Cb Cr 0 7Vp p 75 9 Video Characteristics Frequency response 20 20KHz 1 dB Audio characteristions Slgnal to noise ratio 2100 dB THD 0 0196 Operating voltage 110V 250V 50 60 Hz General Specifications Dimensions 380mm x 250mm X 41 5mm 55 1 86 Operating Temperature 5 35 C Operating Humidity 15 75 condensation Design and specifications are subject to change without notice 2 We do not guarantee that all discs can be played smoothly due to the disc quality disc recording quality and recording format c DVD Video Super VCD VCD DivX 3 11 DivX4 DivX5 Divx Pro XWD CD DA CD G HDCD 3 WMA Kodak Picture JPEG Audio outputs Analog audio output Stereo output 5 1CH Digital audio output Coaxial Optical Output Composit e S V ideo component Y Cb Cr progressive scan Video outputs Y Pb Pr RGB SCART Headphones output Video amplitude 1 0Vp p 75 9 Video Characteristics S Video amplitude Y 1 0Vp p 75 C 0 286Vp p 75 0 Component V ideo ampl
69. itude Y 1 0Vp p 75 9 Cb Cr 0 7Vp p 75 9 Frequency response 20 20KHz 1 dB Audio characteristions Slgnal to noise ratio 2100 dB THD 0 0196 Operating voltage 110 250 50 60Hz 11 Dimensions 2 258mm 41 5mm General Specifications Mass Operating Temperature 5 357 Operating Humidity 15 75 condensation Design and specifications are subject to change without notice 2 We so not guarantee that all discs be played smoothly due to the disc quality disc recording quality and recording format 12 Chapter Three Principle and Servicing Section One Principle of the Player 3 1 1 Functions and features This player adopts new generation DVD decode chip with built in Dolby decoder which creates vivid surround sound effect to bring youto taste cinema effect It has the following features Progressive scanning output produces steadier and clearer pictures with flickering HDMI jack 5 1CH output Composite video S video and component video output Digital picture adjustment to the sharpness brightness contrast chroma and saturation os picture gamma correction Built in Dolby digital decoder Karaoke function Headphone output function USB jack Compatible with DIVX MPEG4 format movie 3 1 2 Block diagram of the player Its internal structure is mainly composed of decode amp servo board HDMI high definition board input output board po
70. ld be placed on the antistatic table cushion and grounded 4 Maintenance personnel should wear antistatic wrist ring which should be grounded 5 Places around the operating position should also be covered with electric conduction cushion or Painted with antistatic paint 1 1 3 Precautions for laser head 1 Do not stare at laser head directly for laser emission will occur when laser head is working which will Hurt your eyes 2 Do not use wiping water or alcohol to clean laser head you may use cotton swab 1 1 4 About placement position 1 Never place DVD player in positions with high temperature and humidity 2 Avoid placing near high magnetic fields such as loudspeaker or magnet 3 Positions for placement should be stable and secure 1 2 Maintenance method 1 2 1 Visualized method Directly view whether abnormalities of collision lack of element joint welding shedding welding rosin joint copper foil turning up lead wire disconnection and elements burning up among pins of elements appear Check power supply ofthe machine and then use hands to touch the casing of part of elements and check whetherthey are hot to judge the trouble spot You should pay more attention when using this method to check in high voltage parts 1 2 2 Electric resistance method Set the multimeter in resistance position and test whether the numerical value of resistance of each point in the circuit has difference from the normal value to judge
71. m 0 ow 0 p O m S 3 5 4 function introduction to 74 4 1 Description The 74HCU04 0205 is a high speed Si gate CMOS device and is pin compatible with low power Schottky TTL LSTTL It is specified in compliance with JEDEC standard no 7A The 74HCU04 is a general purpose hex inverter Each of the six inverters is a single stage 2 Features Output capability Standard category SSI 3 PIN CONFIGURATION ei 7 14 3 5 5 Function introduction to FLASH 1 DESCRIPTION FLASH U207 is a 16Mbit FLASH memorizer and the damage of U214 may cause troubles such as power not on no disc reading and power on picture mosaic 2 PIN DESCRIPTION spem meme meme T eeen 812 VCC 5V power supply 5V Take word extend mode as data line and bit extend DQ15 A 1 mode as address line Select 8 bit or 16 bit output mode High level is 16 bit output and low level is 8 bit output 3 5 6 Function introduction to SDRAM 1 DESCRIPTION 64M 16 bit memorizer SDRAM U208 with the player and the working clock frequency is 166 143MHZ The function of 16SDRAM in DVD players is to memorizer the program of AML3298 taken out from FLASH and information of image and sound taken out from disc to fo
72. me Echo 1 Microphone switch on oroff microphone Optional setting On Off Z Default Off 2 Kar help select accompany singing means Optional setting Channels L Channels Channels No ast Channels No voc Default Channels No ast 3 Volume A In microphone setup page press UP DOWN cursor to select Volume item and then press OK button to enterthe adjustment menu B Press UP DOWN cursor to adjust the setup value C After adjustment finishes press OK button to return to microphone setup page Microphone Kar help Volume Echo 4 Echo A In microphone setup page press UP DOWN cursor to select Echo item and then press OK button to enterthe adjustment menu B Press UP DOWN cursor to adjust the setup value C After the adjustment finishes press OK button to return to microphone setup page Volume Backlight Gr equalizer Screen saver 1 Backlight This item is used set color of led on the front panel Optional setting On Off Default On 2 Gr equalizer This item is used to set wether the Dynamic Spectrum is allowed Optional setting On Off Default Off Dynamic Spectrum display is invalid in Data disc DVD AUDIO playback 3 Screen saver Open or close the screen saver function Optional setting On Off Default On 2 4 8 Parental control Allowed Set password 1 Allowed To set the
73. n loop and converse into electronic signal through photoelectric cell For the reflection loop produced in non pit information area and pit information area in disc has difference and reflects into different position of light sensor photoelectric diode in different positions on light sensor will produce different signals to process all signals on light sensor and then produce digital signals 3 Focus trace coil when laser head is reading signals normally information side should be in the focus of laser beam because of factors of disc error high speed rotation and machine error it is unavoidable that laser beam focus deviates from information face to produce phenomena of orbit boas and refocusing Focus trace coil is added on loader to adjust laser beam to make it correctly focus in information area 4 Formation of RF signal when disc reading is normal light sensor will have 160MV vague and eye pattern waveform which is added on A B C D respectively and output RF signal from FRO pin after being overlapped by adder inside light sensor the frequency when reading DVD disc is much higher than that when reading CD disc output amplitude is about 1 4V 3 2 2 Servo circuit 1 Servo system of this player adopts SANYO 65 loader and MTK decode solution MT1389HD FLASH 16M SDRAM 64M and its servo circuitis mainly composed of front end signal processing digital signal processing and digital servo processing digital signal processing
74. o decoding output to reproduce original and realistic sound effects High Quality Digital Audio Optical and coaxial outputs for Digital audio DTS Dobly Digital PCM Digital audio outputs to satisfy the fans ss acoustic requirements Many Convenient Features Screen saver protects your TV set carefully The novel Mp3 playback window GUI provides you a new way to appreciate Mp3 music Multi angle playback function makes it possible for you to view a scene from different camera angles 1 possible to select the desired beginning development and ending ofa story Direct entry into desired scenes title chapter track search Zooming function to zoom up any playing picture Capable of playing PAL NTSC discs z Multiple aspect ratios to fit TV sets of various screen ratios Parental lock function to prevent children from watching unsuitable discs Multiple dubbing languages and subtitle languages bring you the best entertainment status all the time Super Compatibility with super VCD VCD CD CD R PICTURE CD etc NOTE DivX version is still upgrading continuously and the latest version ofthis unit is DivX 5 1 Some discs labelled with 4 on the marketactually are others with which uncompatible Please take care when buying discs 2 2 Control Button Locations and Explanations 2 2 1 Front Panel Illustration 000
75. oard the cause of troubles may be found Through the above maintenance method theoretical knowledge and maintenance experience all difficulties and troubles will be readily solved 1 3 Required device for maintenance Digital oscillograph 2100MHE TV set SMD rework station Multimeter Soldering iron Pointed month pincers Cutting nippers Forceps Electric screw driver Terminals connecting cord Headphone Microphone Chapter Two Functions and Operation Instructions 2 1 Features This player has employed the new generation DV decode chip with built in Dolby Digital decoder which willbring you to a brand new AV entertainments world The 2 laser super error correction mechanism supports CD R Brand new AV Effects Compatible with DivX MPEG4 discs to produce wonderful pictures 108MHz 12bit video DAC with more vivid and brilliant pictures Progressive scan video outputs to eliminate the flickers hardly overcome by interlacing scan and therefore your eyesight will be well protected At the same time the pictures definition Is sharply enhanced and the pictures will be finer smoother and stabler Brightness chroma and contrast adjustment functions to render your eyes more comfortable Z Digital echo Karaoke to enable your singing easier Composite Video S Video and Component Video outputs Bullt In Dolby Digital decoder separate 5 1Ch Outputs Dolby output for 2channel DOWNMIX DVD Audi
76. of 55 C to 125 C FEATURES Continuous Short Circuit Protection Wide Common Mode and Differential Voltage Ranges No Frequency Compensation Required Low Power Consumption 2 Latch Up Unity Gain Bandwidth 3 MHz Typ Gain and Phase Match Between Amplifiers Low Noise 8 2 at 1 kHz Designed To Be Interchangeable With Raytheon RC4558 and RM4558 Devices 3 PIN CONFIGURATION em LS m 00000000 __ 0002 79 3 5 14 Function introduction to TDA1308 1 DESCRIPTION The TDA1308 0603 is an integrated class AB stereo headphone driver contained in an 508 DIP8 or a TSSOP8 plastic package The device is fabricated in a 1 mmCMOS process and has been primarily developed for portable digital audio applications The difference between the TDA1308 and the TDA1308A is that the TDA1308A can be used at low supply voltages FEATURES Wide temperature range No switch ON OFF clicks Excellent power supply ripple rejection Low power consumption 2 Short circuit resistant High performance high signal to noise ratio high slew distortion Large output voltage swing 3 PIN DESCRIPTION s omm 11 11 80 3 5 15 Function introduction to 1392 1 Description
77. oise Voltage 0 8u Vrms typ Wide Gain Bandwidth Product 15MHz typ Low Distortion 0 0005 typ Slew Rate 5V us typ Package Outline DIP8 SIP8 EMP8 SSOP8 DMP8 Bipolar Technology 3 PIN Description 21 8 Inverting Input Pin 2 3 5 8 function introduction to 05954 1 DESCRIPTION D5954 U302 is a servo drive IC with built in 4 channel drive circuit Digital focus trace feed and main axis drive signal outputted by MT1389E is sent to D5954 for amplifying through RC integration circuit The focus trace feed and main axis drive signal being amplified by D5954 is sent to loader to fulfill the corresponding servo work 2 PIN DESCRIPTION VINFC Focus control signal input CF1 E External feedback loop CF2 ES E External feedback loop VINSL Forward control input connected to reference voltage VINSL ae Main axis control signal input sy 9 S NENNEN GNNENENL T T TN 02 e Ce tenda EN KENNEN TT TT TT TR OOOO me 1 ec lw le emm 0013 3 5 9 function introduction to 6961 1 DESCRIPTION PT6961 U401 is an LED Controller driven on a 1 7 to 1 8
78. on Save Image File Format IM About 1 Images Select Folder Sawe 002 8 CH1 100mV M 100ns CH1 Z 13 3mVv Current Folder is 45 3 Asignal waveform diagram of pin 15 of XS301 B D E Tek RS Stop M Pos 0 0005 SAVE REC Action Save Image File Format BMP About Saving Images 1 Select Folder Save 003 8 CH1 50 0mV M 250ns CH1 7 225mV Current Folder is A 4 DMO signal when there is main axis rotation waveform diagram of pin 37 of 0201 Mt1389 Tek RUM Stop Pos 0 0005 SAVE REC 1 Saving Images Select Folder Save TEKOO04 BMP CH1 500m 10 0 us 47 22 5 Current Folder is 5 FMO signal whenthere is feed waveform diagram of pin 38 of U201 MT1389 Tek Stop M Pos 0 0005 SAVE REC About saving Images 1 Select Folder Save CH1 500my M 25 05 CH1 Z 52 5 Jan 06 09 24 lt 10Hz 46 6 TRO signal when there is trace waveform diagram of pin 41 of 0201 MT1389 Tek aT Stop M Pos 0 0005 SAVE REC Action File Format About 1 Saving Images Select Folder Sawe 07 8 CH1 100m M 1 005 CH1 34 5 Current Folder is A 7 FOO signal when there is focus waveform diagram of pin 42 of U201 MT1389 Tek Stop M Pos 0 000s SAVE REC
79. ormal and other channels are normal Analysis and troubleshooting according to symptom in audio signal outputted by right channel there is some DC component and trouble lies in audio part Use multimeter to check right channel audio 36 output and there is 2 45V voltage check each signal output pin of U209 and there is 2 5V voltage check two ends of Tc240 capacitor and there are 2 5V voltage power off and test Tc240 capacitor and there is 200 ohm resistance after changing this capacitor trouble is removed Example 15 Symptom HDMI has nooutput Description other video channel output is normal only HDMI port has nooutput Analysis and troubleshooting when this trouble appears check pin 18 of HDMI output terminal 5V detect voltage is only 1V then test voltage in L715 and find voltage on two ends of L715 inductor have 4V voltage difference use multimeter to test L715 resistance and itis about 1K9 now inductor has totally become resistance after changing it trouble is removed 97 3 3 2 Troubleshooting flow chart 1 Troubleshooting process for power not on is shown in the figure 3 3 2 1 Power not on for the player Whether power board 5V power supply is normal Check according to troubleshooting process for Power board not on Whether DV33 1 8V voltage stabilizing circuit is normal Whether 3 3V 1 8V power is normal Check 3 3V or 1 8V
80. output 7 1 Central servo 25 CSO RFOP Analog output 2 Positive main beam summing output RERE RFON Analog output 1 RFRP low pass 57 6 ps CD 5 3 3 246 RFVDD3 247 RFRPDC RF Data PLL Interface 9 Analog output Tray PWM output Tray open output 251 RFGND 235 JITFO A CD 6 JITFN 237 PLLVSS 238 IDACEXLP 239 PLLVDD3 240 LPFON 241 LPFIP 242 LPFIN CD CD INP CD DMO CD FMO TROPENPW 1 1st General PWM output PWMOUT1 Analog output 2 AD input 0 Tracking servo output PDM output of tracking servo Analog output compensator 58 Focus servo output output of focus servo FOO Analog output compensator LVTTL3 3 Input 1 Monitor hall sensor input FG Schmitt input pull up 2 AD input 1 Digital pin with analog input path 3 GPIO for ADIN1 General Power Ground 18 DVDD18 18 1 8V power for internal digital circuitry DVSS 1 8V ground for internal digital circuitry DVDD3 IB 3 3V power pin for internal digital circuitry DVSS 3 3V ground pin for internal digital circuitry Micro Controller and Flash Interface 48 EXNCCNUNENE TIT III TT NN ERN TONNEN T TII NN IT T ON NN n rem rores uoe T PON Ca now ronces poron
81. p menu to select the desired item you wantto adjust Press OK or RIGHT button to enter the item s adju stment B Press UP DOWN arrow to adjust the setting value 2 4 4 Sound Mixer gt Configuration Digital output Stereo mix HDMI Audio On Surr Mix Tuning Low band Channels Delays PRO Logic 1 Mixer St gt Stereo Stereo mix 591 Low band Configuration Channels Delays Logic A Configuration To this players DOWNMIX mode to change multi channel audio into two channel audio Optional setting Stereo 5 1 Zi Default Stereo B Stereo mix To set the output means of the left or right audio when playing a Dolby disc with separate two channel audio Optional setting L R L Default L R C Surr Mix To set output means of the surround left and right audio when playing a stereo disc Optional setting Off sum Virt Surr Default Off D Low band select the channel that you desire to output low frequency signal Optional setting Front Center C Surround Sr Subwoofer SW Default Front Subwoofer SW E Channels To set volume of each individual channel a Press UP DOWN navigation keys to select CHANNEL TRIM then press the OK or RIGHT navigation key to select ENTER SETUP PAGE as shown inthe TV screen FRONT surround Volume L R Center SW b Press LEFT RIGHT navigation keys to select the desired chann
82. player is playing normally shown in the figure 2 11 1 chip outputs analog audio signals and a low level signal at the same time to VMUTE to make Q211 on voltage of Q211B electrode is about 2 7V voltage of Q211 collector electrode is about 3 3V so Q212 is also on voltage of B electrode is about 0 7V voltage of Q213 E electrode is close to zero Q213 cuts off MUTE 1 is negative voltage which is added to base electrode of mute tube of audio output end to make mute tube cutoff audio signals output through being amplified by 4580 When in mute MT1389E has no audio signals to output to operational amplifier so audio output end of the player has no audio output because electrical elements and IC in circuit will produce some noise to send to audio output end ofthe player in order to filter these noise decode chip outputs a high level to VMUTE to make 0211 cutoff so Q212 cuts off 5 power transmits to base electrode of switch pipe 0205 Q210 through E C electrode of Q213 and circuit is in mute When machine is not playing discs decode chip outputs a high level signal to VMUTE to make circuit enter circuit mode 27 3 Working principle of power off quieting Shown in the figure 3 2 11 1 when the player is working normally D204 is on 5V charges capacitor Tc235 through D204 now voltage of Q214 emitter electrode is lower than that of base electrode 0214 cuts off When power off 5V disappears base electrode of 0214 changes to low l
83. put Normal General purpose output Masterl2C on Master serial interface data input output MSD GPO6 BIST mode SRAM fail output Normal General purpose output CD Power EPROM word address type 1 16bit 0 BIST mode SRAM output Normal General purpose output BIST mode SRAM fail Output CD A Normal General purpose output HDMI test Input down mixed audio input BIST mode SRAM fail output Normal General purpose output V sync out HDMI test Input VDAC test PLL test Enable BIST mode SRAM fail output CD GPIO10 Normal General purpose output H sync in out HDMI test input VDAC test PLL test calibration AB AB CD A AB CD 58 2 EAn ER 83 Normal S PDIF audio input SCAN mode test se input VDAC test VDAC test reset active low BIST mode BIST reset active low QJ N N N CD Normal data of channel 6 7 VDAC test VDAC testdata bit 11 input Normal PS of channel 4 5 4 VDAC test VDAC test data bit 10 input BIST mode BIST reset active low Normal PS data of channel 2 3 N VDAC test VDAC test Data bit 9 input BIST mode BIST verify pulse Normal PS data of
84. put is normal and bridge rectifying circuit has no voltage output use multimeter to test fuse tube and it has open circuit change fuse tube and trouble is not removed Test Tc501 anode and there is still no voltage output fuse tube is burnt down check 4 diodes of bridge rectifying circuit and they are all normal Tc501 has no abnormalities of liquid leakage and stricken through test pin 1 and 8 of U501 switch IC and it has short circuit this IC has been stricken through after changing IC trouble is removed Example 12 Symptom power not on Description 5V 9V 9V have output but 3 3V has no output Analysis and troubleshooting test each path voltage output of power board and find there is no 3 3V voltage output check C510 TC506 TC505 L507 D507 and they are all normal check D509 cathode and find there is no voltage output test D509 and there is open circuit after changing D509 trouble is removed Example 13 Symptom HDMI has no output Description connect with HDMI and there is no display Analysis and troubleshooting test H601 and V601 signal on decode board and they are normal test H601 and V601 on high definition board and find H601 signal is not normal test R701 and it has open circuit change R701 and trouble is removed Example 14 Symptom noise appears when power on Description when power on only right channel has a bump sound after increasing volume there is current sound and sound quality is abn
85. r 9V 9V power supply is normal Check power supply circuit Whether decode chip has audio signal output Check decode chip Whether Q213 collector electrode Check mute circuit is low level Check according to troubleshooting of Single channel has no sound Figure 3 2 2 3 Troubleshooting flow chart No sound output 40 4 Troubleshooting process for Left channel has no sound is shown in the figure 3 2 2 4 Left channel has no sound whether pin 226 of MT1389 has sound MT1389 has trouble Check whether pin 2 of U209 has audio signal input Check the line between MT1389 and U209 Check whether pin 1 of U209 has signal output U209 has trouble whether L205 has signal Check Q206 Check line and terminal Figure 3 2 2 4 Troubleshooting flow chart for Left channelhas no sound 41 5 Troubleshooting process for Power is shownin he figure 3 2 2 5 Power not on Whether two ends of TC501 have 300V voltage Whether two ends ofpower grid filter have AC input Check fuse tubeand power cord Check rectifying tube D501 D504 Change U501 Whether each pin voltage of 0501 is normal Check U501 peripheral and transformer Check U501 andtransformer Whether cathode of D510has power output Check D501 andtransformer
86. rm buffer add the stability of information output and add anti shaking effect of player 2 PIN DESCRIPTION Poo amen emm ome O 28 29 30 31 32 33 34 35 72 Clock enable signal System clock input VDDQ 3 3V power supply 3 3V power supply A Data input output screen shielded signal DDQ 3 3V power supply I E Data input output screen shielded signal Write control signal Line address gating signal Eme lt lt 015 lt lt g lt 5 516 8 5 2 8 E E 3 5 7 function introduction to 4580 1 Description NJM4580 0209 0210 0211 is the dual operational amplifier specially designed for improving the tone control which is most suitable for the audio application Featuring noiseless higher gain bandwidth high output current and low distortion ratio and it is most suitable not only for acoustic electronic parts of audio pre amp and active filter but also for the industrial measurement tools It is also suitable for the head phone amp at higher output current and further more it can be applied for the handy type set operational amplifier of general purpose in application of low voltage single supply type which is properly biased of the low voltage source S28 2 FEATURES Operating Voltage 2 18V Low Input N
87. tage and they are normal check decode board 27MHZ crystal oscillator frequency and it is normal test 1389 chip power supply voltage 3 3V 1 8V and find that there is no 1 8V power supply voltage check Q306 Q309 and find that Q306 has rosin joint weld again and trouble is removed Example 3 Symptom no mute function Description when playing press MUTE button there is mute icon but no mute function Analysis and troubleshooting when playing test Q213 collector electrode C pin voltage and it is 2 24 which is normal press MUTE button on remote control use voltage level of multimeter to test Q213 collector electrode C pin voltage and it is negative voltage which should be 1 4V in normal conditions check 9V power supply voltage and it is normal test Vd203 anode voltage and itis 0 7V which is normal so we doubt trouble is caused by Q213 change Q213 and trouble is removed Example 4 Symptom no MIC Description when reading disc sound is normal there is picture but no microphone function Analysis and troubleshooting power on use remote control to switch on microphone insert microphone use probe of oscillograph to test OKA pin of MIC board Xs206 speak and there is signal 34 Output check decode board 0203 and there is signal input test 0210 power supply 3 3V and it is normal use oscillograph to test three data clock of SACLK SBCLK SLRCK that 1389 chip outputs to U210 and they are normal so we do
88. tage for decoding after finishing RSPC error correction inside Normal DVD player has a open close circuit to control the in and out of door to reach the purpose of coneying discs PDVD adopts manual open means and whether it is close to proper position can be checked by detect switch 3 Explanation to servo terms 1 FOO when rotating disc may probably move upwards or downwards slightly to make the focus of laser emitted by laser head cannot justly fall on data pit of disc so laser head is required to move upwards or downwards to make focus aim at data pit justly When laser head is moving upwards downwards it means that pick up is making focus acts 2 TRO data information is saved in disc in form of tracks When disc is rotating trace deviation will produce and now laser head is required to be adjusted In this process it is objective but the entire pick up that moves forwards or backwards and the moving range is very small 3 FMO similar to acts of trace the acts of feed are larger than those of trace Feed conducts a large scale movement firstly and then trace moves slightly in this range Feed moves for a while and does not move for another while but trace moves all the time Feed is rough adjustment and trace is fine and acts are obvious when pwer on and selecting tracks 4 DMO it is the top that holds up disc Its rotation speed decides that of disc Its rotation is generated by an individual DC electric machine in
89. the trouble spot in the circuit the tested numerical value of resistance is not accurate and the tested numerical value of integrated IC s pins can only be used for reference sothe elements should be broken down for test 1 2 3 Voltage method Voltage method is relatively convenient quick and accurate Set the multimeter in voltage position and test power supply voltage of the player and voltage of a certain point to judge the trouble spot according to the tested voltage variation 1 2 4 Current method Set the multimeter in current position and test current of the player of a certain point to judge the trouble spot But when testing in current method the multimeter should be series connected in the circuit which makes this method too trivial and troublesome so it isless frequently used in reality 1 2 5 Cutting method Cutting method should be combined with electric resistance method and voltage method to use This method is mainly used in phenomena of short circuit and current leakage of the circuit When cutting the input terminal voltage of a certain level if voltage of the player rises again it means that the trouble lies in this level 1 2 6 Element substitution method When some elements cannot be judged good or bad substitution method may de adopted directly 1 2 7 Comparison method A same good PC board is usually used to test the correct voltage and waveform Compared these data with those tested through fault PC b
90. tion KARAOKE Button Karaoke operation menu 44 Button Fast backward play Lu Button Skip backward PEPEAT Button Repeat play A B Button Repeat the select O Button Press once to stand by Press twice to play SUBT Button Change subtitle language HDMI Button Switch output mode of HDMI Q PLAY Button Skip the advertisement warning and play the DVD directly MENU Button Display DVD menu or open close PBC OK Button Cancel Button ZOOM Button Zoom in out the displayed frame Button Play or pause playback Button Fast backward play AUDIONIDEO CORD ss ese veda ARR RD IPCS REMOTE CONTROL 59 e 1PCS AAA SIZE BATTERIES 28248385 orcas 2PCS WARRANTY CARD 5 USER MANUAL 55 555555555555555 esses eee 1PCS 1 5 2 4 FUNCTION SETUP 2 4 1 Function Setup 1 Press the SETUP button and the screen displays the selection menu of function setup Language gt lt Setup menu Image DVD menu Sound Soundtrack Playback Subtitle Karaoke Preference Parental control Initial setup Reset to defaults Exit 2 Press the CURSOR button to select the menu to be entered and press the OK orbutton to confirm Or press the CURSOR button to Exit item and then press the OK button to exit 3 Press UP DOWN arrow to select the desir
91. tput ARF Output 2 While internal AUDIO DAC not used GPIO 1 AUDIO DAC Right Surround channel output 2 While internal AUDIO DAC not used ARS GPIO Output a SDATA3 b GPIO 1 AUDIO DAC Right channel output AR GPIO Output 2 While internal AUDIO DAC not used a SDATA1 162 LLL 1 AUDIO DAC Left Surround channel output 2 While internal AUDIO DAC not used 226 AL GPIO Output a SDATA2 b GPIO 1 AUDIO DAC Left Surround channel output 2 While internal AUDIO DAC not used 227 ALS GPIO Output a SDATAO b GPIO 1 AUDIO DAC Center channel output GPIO Output 2 While internal AUDIO DAC not used GPIO Video Interface 18 1 Video data output bit 0 2 Compensation capacitor 192 DACVSSC E UNE Ground pin for VIDEO DAC circuitry Output 1 Video data output bit 1 191 YUV1 Y 4MA SR 2 Analog Y output Output 1 Video data output bit 2 189 YUV2 C 4MA SR 2 Analog chroma output DACVSSB Ground Ground pin for VIDEO DAC circuitry Output 1 Video data output bit 3 187 YUV3 CVBS 4MA SR 2 Analog composite output Output 1 Video data output bit 4 185 YUV4 Y G 4MA SR 2 Green or Y Output 1 Video data output bit 5 183 YUV5 B Cb Pb 4MA SR 2 Blue or CB 64 Output 1 Video data output bit 6 R Cr Pr 4MA SR 2 Red or CR 1 Vertical sync input output 2 While no External TV encoder Output ADIN1 1 Vertical sync for video input 4MA SR Il Version AD input port 1 1 Video
92. ubt that the trouble may be caused by U203 or rosin joint weld U203 again test and trouble is removed Example 5 Symptom HDMI has no sound output Description HDMI has pivture but no sound AV is normal Analysis and troubleshooting check U701 Mt1392 power supply voltage 1 8V DV3 3V and they are normal check pin 25 reset voltage of U701 and it is 3 3V which is normal check 3 audio data outputted by 1389 chip use oscillograph to test pin 75 of U701 and find SDATA1 has no audio data input check 1389 chip SDATA1 and there is data output use resistance level of multimeter to testthe line from 1389 chip to U203 and it is not well connected and a segment of copper line cuts off after repair the line connect and trouble is removed Example 6 Symptom not read CD disc Description when reading CD disc DISC displays Analysis and troubleshooting load CD disc an test check Q302 pin E voltage is 3 3V pin B voltage is OV pin c voltage is 3 3V but when reading CD disc normally pin E voltage is 3 14V pin B voltage is 2 2V pin C voltage 15 2 45V so we doubt 0302 or circuit around has trouble take down decode board and find TC303 of B panel isjoint welding weld again and trouble is removed Example 7 Symptom not read disc Description not read CD disc and DVD disc Analysis and troubleshooting check laser head and there is laser output and also focus trace feed and man axis actions but feed act has abnormality t
93. ume setthe maximum volume B Equalizer To set Equalizer modes Optional setting Off Rock Pop Live Dance Techno Classic Soft Default Off C Echo To set different sound field effects Optional setting Off Concert Living room Hall Bathroom Cave Arena Church Default Off D Tone balance to set thetone level to match your diapason when you re singing Method to adjust tone control a Press UP DOWN cursor buttons to select tone item in Audio Setting page and then press OK or RIGHT button to enter Adjustment Menu b Press UP DOWN cursor button to adjust setting value c Press OK or LEFT button to return to Audio Setting page after adjustments are done 2 4 5 Playback DVD VCD SVCD Files Repeat 1 DVD set whether information of advertisement and warnings at the beginning of DVD discis skipped to play the movie directly Advertisemenu Optional setting Yes NO Default Number 2 VCD SVCD To set the PBC status 2 When playing Super VCD or VCD2 0 discs if the PCB is ON the menu image displays Optional setting On Off Default On 3 Files data disc may probably includes Mp3 JPEG and MPG formatfiles in which you may select DVD player to read the file type Optional setting Audio Picture Video Default Audio Picture Video 4 Repeat selectthe repeat playback mode Optional setting Off Single all Default Off 2 4 6 Karaoke Microphone Kar help Volu
94. upply of 3 3V and 1 8V in which 1 8V mainly supply power for internallogic control circuit and we call it core voltage After power on reset circuit performs reset to MT1389 built in CPU 8032 and FLASH decode chip outputs reset signal at the same time and performs reset to other circuit After system reset it firstly sends out read signal to FLASH to read out in formation saved in FLASH the machine displays power on picture servo system begins to work to check whether machine closes door to proper position and whether detect switch has been closed if not the door close action is performed After detect switch of door is closed the machine begins to perform preparations of disc reading and performs panel display at the same time of working Playback process laser head picks up disc signal from disc after servo system processing then send to decode circuit for decoding signal after being decoded is saved in SDRAM for the moment When machine needs to replay signal decode circuit calls information inside SDRAM to perform D A conversion and then output 24 User information storage information content set by useris saved inside EEPROM if user does refresh or reset this information it will saved in IC permanently Audio video output circuit at present MT1389 all integrates video D A converter MT1389E inside integrates audio D A converter manufactures select according to their own needs Please refer to circuit principle
95. wer board and loader components Block diagram of the player is shown in the figure 3 1 2 1 except for power board other signal flow are all shown in the figure Main function of loader is to read disc information and transmit to Mt1389 Mt1389 fulfills servo function through D5954 on decode board and other subsidiary circuit to ensure the normal working of loader FLASH on decode board is to save system program SDRAM is to save program when machine is working and read sound and picture information from disc to ensure smooth output Main function of AV board is to output various video signals SDRAM 64M FLASH16M 55340 4 USB U211 U214 U203 AL AR VR DVD CVD ALS IVR CD Switc ARS gt SW lt d sap e control ASPDIF Loader MDI YUV1 SY DVD A B C D RFO YUV2 SC 3 CD A B C D E F YUV3 Video CVBS filteri V20 YUV4 TRIN YUV5 TROUT RIV LIMIT HDMI SCL HDMI SDA U201 STBY TK FC4 FC FOSO On U302 FMSO 58885 22 TROPEN TRCLOSE CD 10 0 TXO HPD LOUD Voltage reduce circuit UREST Voltage reduce circuit 02 Figure 3 1 2 1 Block diagram of the player 14 3 1 3 Introduction to IC of the player Introduction to IC ofthe player is shownas in the following table
96. which rotation speed of DVD is twice overthat of CD 3 2 3 CD DVD conversion circuit 1 CD DVD conversion circuitis shown as in the following figure 3 2 3 1 AVCC 8 R309 5301 MT1389E 100 25 3018 5 25 3018 5 Figure 3 2 3 1 CD DVD conversion circuitdiagram 19 2 Working principle After loading disc in the player IOA port of MT1389 is defaulted high level to make Q305 saturation on and form loop together with CD laser power control circuit on CD Atthe same time also goes to loader PD IC to switch disc begins to rotate when servo management system recognizes that the disc in player is not CD disc IQA pin outputs low level to make Q305 cut off and make Q303 on and form loop together with DVD laser power control circuit on loader to perform disc reading acts After disc tray door opens IOA keeps the state before opening disc tray door If the player cannot recognize which disc itis IQA pin will switch continuously until reading disc or system judges that there is no disc Note Q303 and Q304 are MOS tube 3 Key point voltage unit V is the following table 00 0303 0304 State HEN GUN Grid Drain Source electrode B electrode electrode electrode S 3 2 4 Laser power control circuit 1 Laser power control circuit is shown as in the following figure 3 2 4 1 LDO AV33 R301 4 7R

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