BBK DK1020S Service Manual Download Page 1

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first draft

DK1020S service manual

Summary of Contents for DK1020S

Page 1: ...first draft DK1020S service manual...

Page 2: ...ion method 1 2 7 Comparison method 1 3 Required device for maintenance Chapter Two FunctionsandOperationInstructions 2 1Features 2 1 1 Brand newAVEffects 2 1 2 HighQualityDigitalAudio 2 1 3 Many Conve...

Page 3: ...1020S Element Circuit Principle and Servicing 3 2 1 Power supply circuit 3 2 2 Loader signal explanation 3 2 3 Servo circuit 3 2 4 Mute circuit 3 2 5 Disc in out circuit 3 2 6 Reset circuit 3 2 7 Disc...

Page 4: ...Mt1389 troubleshooting process 3 5 2 Troubleshooting flow chart for No disc reading 3 5 3 3 5 4 3 5 5 Troubleshooting flow chart for power not on Troubleshooting flow chart for No sound for external...

Page 5: ...nents 4 4 1 Disassembly process for control panel components 4 4 2 Assembly process for control panel components 4 5 Power amplifier board 4 5 1 Disassembly process for amplifier board 4 5 2 Assembly...

Page 6: ...an 2 board 5 2 9 power board Chapter six bom list 6 1 power board 6 2 earphone board 6 3 amplifier board 6 4 decode board 6 5 surface control board 6 6 input output board 6 8 remote control 155 156 15...

Page 7: ...elengthofabout2metrestoinsertintotheearth and fetch theleadwirefrom thetopofthesurplusmetalandconnectto therequiredstaticelectricity device Thelengthanddepthofthemetalembeddedundertheearthshouldbedete...

Page 8: ...l value to judgethetroublespot But in the circuitthe testednumerical value of resistanceisnotaccurate andthetestednumerical value ofintegrated IC s pinscanonlybeusedforreference sotheelementsshouldbeb...

Page 9: ...hthose testedthroughfaultPC board the cause of troublesmaybe found Through the above maintenance method theoreticalknowledge andmaintenance e xperience a ll difficulties and troubles willbereadily sol...

Page 10: ...7 DVD Audiodecoding outputtoreproduceorigtnalandrealisticsoundeffects 8 CompatiblewithDIVXMPEG4discstoproducewonderfulpictures 1 Optical andcoaxialoutputs forDigital DTSaudio 2 DTS DolbyDigital PCMDi...

Page 11: ...leeptimer function NOTE DivXversionis stillupgradngcontinuouslyandthelatestversionofthisunitisDivX5 1 Some discsimcompatble Pleasetakecarewhenbuyingdiscs 2 1 4 Super CompatibilitywithSVCD VCD CD MP3 H...

Page 12: ...B 9 0 10 5 6 7 8 1 2 3 4 STANDBY EJECT AUDIO SUBTITLE ANGLE FUNCTION GOTO LOGO OSD ZOOM P N TITLE SELECT SETUP PLAY STOP SLOW REPEAT MUTE SLEEP PSM MENU PANEL PAUSE STEP MAIN V O L RC 78 Q PLAY BROWS...

Page 13: ...Basic Steps ofFunctionSetup 1 Pressthe SETUPbuttonand thescreen displaystheselectionmenuoffunctionsetup 2 PresstheCURSORbuttontoselectthemenu tobeenteredandpresstheSELECTbuttonto confirm orpresstheCU...

Page 14: ...rmit Forexample PressUP DOWN arrow toselect AUTO then press select theTV screen display 3 TVType Thisitemisusedtosetthevideo outputsystem ofthis unit O ptional settings AUTO PAL NTSC Default AUTO 4 LE...

Page 15: ...SSIAN Default ENGLISH 3 ScreenSaver Open orclwsethescreen saver function Optionalsettins OFF ON Default ON Optionalsettins YCbCr RGB Default YCbCr WhenusingRGBoutputsfromtheSCART interface Pleaseselet...

Page 16: ...SETUPPAGEto selectPROLogicll thenpresstheSELECT navigationkeytoenterthe PROLogicll SETUP page PROLogiclliseffectiveonlywhenthe DOWNMIXmodeissettoOFFandSPDIFis settoRAW AudioSetupPage EqType SoundField...

Page 17: ...BY DIGITAL SETUP thenpresstheSELECTnavigation KeytoentertheDOLBYDIGITALSETUP page To settheoutputmeansoftheleft orright audio when playingaDolbydiscwith separatetwo channelaudio 6 S A DualMono DolbyDi...

Page 18: ...DVDonly Ifthediscdoesnotrecordyourdesired language the player willselectthedisc specifiedlanguages toplay Selectingotherlanguages Press UP DOWN ARROW tomovethecursortoOTHERitem pressSELECT PressNUMBER...

Page 19: ...nalvoltage otherwise theplayerwillnot beoperationaloreven bedamaged Somefunctionsoftheplayermay notbe applicableto some discs Incase ofoccasionalplayerhalt please turnit offand turnitonagain Alltheaud...

Page 20: ...uggedandswitch power off before the s ystem connection thenconnect one endoftheaccessoryspeakercordto the terminal ofthe satellitespeakers andthe other end to the outputjackfor5CHspeakerspower output...

Page 21: ...aker GrossWeight Max OutputPower Frontspeaker Centre speaker Surroundspeaker Frontspeaker 6 5 Dynamic Paper ConeSpeaker 3 WideFrequencyBand Magnetic shielded ConeSpeaker 4 WooferSpeaker Magnetic shiel...

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Page 34: ...nal 7 IOA Input MT1389 0 01 3 2 3 21 Disc identification signal CD is high level 3 3V and DVD is 0V 8 RF Input MT1389 2 21 2 53 1 28 Total sum of disc data signals This signal is not used by this play...

Page 35: ...eing processed inside loader ensure MD is 180mV when reading CD disc 18 VR DVD Input loader 0 01 0 2 0 After being processed inside loader ensure MD is 181mV when reading DVD disc 19 LD CD Input loade...

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Page 37: ...econd 3 3V pulse when at the moment of disc out 0 0 TRCLOSE 0 0V There is about 1 second 3 3V pulse when at the moment of disc out 0 TROUT 3 41V 3 3V 0V 0V 3 3V 3 3V TRIN 0 0V 3 3V 3 3V 0V 0 OPO 2 61V...

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Page 41: ...int B Diode VD201 anode 3 3V after reset finishes After reset finishes voltage increases from 0V to 3 3V Point C Pin 5 of reverter 0V after reset finishes After reset finishes voltage decreases from 3...

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Page 44: ...3 79 3 79 0 70 1 80 SP Pin 12 of D5954 pin 6 of XS303 1 38 1 38 3 40 1 80 OP Pin 36 of MT1389 B 1 38 1 38 3 10 1 80 OP Pin 35 of MT1389 A 1 53 1 53 3 08 1 98 OPO Pin 34 of MT1389 C 2 44 2 44 0 40 2 5...

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Page 46: ...re bright picture dark 0 74 C Chroma of S VIDEO S video without color color distortion 1 48 VIDEO Component video composite signal Composite video without picture picture bright picture dark 0 74 Y1 C...

Page 47: ...Whether U201 MT1389 power supply and crystal oscillator circuit is normal Check whether matching filter circuit has capacitance electric leakage or inductor circuit opening...

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Page 52: ...nd audio signals at the same time and operation is very convenient It has 21 pins in all and lies in the middle part at rear side of the player Pin function is shown as the following table 46 Pin Name...

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Page 66: ...al D I 1 72 6 DVDRFIP DVD RF high frequency AC coupling signal RFIP input I 1 2 7 DVDRFIN DVD RF high frequency AC coupling signal RFIN input I 1 38 8 MA DVD RAM main beam RF DC signal input A I 2 9 M...

Page 67: ...signal output RF noninverted output O 1 3 26 RFLVL RFO N RF level output RF inverted output O 1 33 27 SGND Servo ground 0 28 V2REFO Reference voltage 2 8V O 2 74 29 V20 Reference voltage 2 0V O 2 18...

Page 68: ...98 55 IOA4 Microcontroller address bit 4 O 1 96 56 IOA5 Microcontroller address bit 5 O 1 69 57 IOA6 Microcontroller address bit 6 O 3 23 58 IOA7 Microcontroller address bit 7 O 3 23 59 HIGHA0 Microc...

Page 69: ...ta bit 2 I O 1 16 84 AD3 Microcontroller address data bit 3 I O 0 9 85 DVSS Ground 0 86 AD4 Microcontroller address data bit 4 I O 1 57 87 AD5 Microcontroller address data bit 5 I O 1 57 88 AD6 Microc...

Page 70: ...t I 3 3 111 IR Remote control signal input I 5 03 112 INT0 Microcontroller interrupt 0 I 3 6 unused 113 DQM0 DRAM input output screen shielded signal O 2 2 114 DQS0 DRAM input output screen shielded s...

Page 71: ...RAS and change into DRAS to control row address selection of SDRAM through 33 ohm resistor R266 141 DVDD3 Digital 3 3V power supply 3 22 142 RCS DRAM chip selection O 2 7 Output CS and change into DCS...

Page 72: ...al AUNIN SL1 172 RD27 DRAM data 0 01 select signal of N4 74HCT125 173 DVDD18 Digital 1 8V power supply 1 91 174 RD26 DRAM data I O 3 6 Output to N12 When headphone is not inserted output 3 3V and now...

Page 73: ...196 YUV2 C Video signal YUV2 output C signal output O 1 47 Supply C signal for S video 197 DACVSSB D A conversion 0 01 198 YUV3 CVBS Video signal YUV3 output CVBS signal output O 0 74 Provide for vide...

Page 74: ...data O 3 22 Give audio IC reset signal 223 DVSS Digital 0 01 224 MC_DATA MIC digital audio input I 1 24 225 SPDIF Digital audio signal output O 1 61 226 RFGND18 RF signal 0 01 227 RFVDD18 RF signal 1...

Page 75: ...IREF Reference current 0 92 256 AVDD3 Analog 3 3V power supply 3 22 Pin Name Data direction Function Voltage V Pin Name Data direction Function Voltage V 1 VDD 3 3V power supply 3 18 28 VSS Ground 0 0...

Page 76: ...0 8 19 CS I Chip selection signal 2 95 46 VSSQ Ground 0 01 20 SD BS0 I Section address 0 gating signal 1 8 47 DQ11 I O Data bus 0 79 21 SD BS1 I Section address 1 gating signal 2 48 DQ12 I O Data bus...

Page 77: ...1 42 5 VINSL Main axis control signal input 1 4 1 42 1 42 6 VOSL External feedback resistor 1 4 1 17 1 21 7 VINFFC Focus feedback signal input 1 92 2 59 2 36 8 VCC 5V power supply 5 38 5 04 5 01 9 PV...

Page 78: ...7 22 PREGND Ground 0 0 01 0 01 23 VINLD Feed control signal input 1 4 1 41 1 4 24 CTK2 External feedback loop 2 41 2 52 2 53 25 CTK1 External feedback loop 2 51 2 52 2 53 26 VINTK Trace control signal...

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Page 81: ...n 1 2 4 5 Y0 Y3 Y signal input I 11 12 14 15 X0 X3 X signal input I 3 13 Y Y signal output O 6 INH Two groups both have no output when forbidden end his high level I 7 VEE minus 12V power supply 8 VSS...

Page 82: ...gital power supply voltage 17 VREF Reference voltage output 8 DAVN O Data effective output 18 SCOUT O Wave path filtering output 9 SDA I O Series control data input output 19 CIN I Comparator input 10...

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Page 84: ...ET DI TAS5508 reset signal 12 HP SEL DI Headphone microphone selection bit 13 PDN DI Power failure control bit 14 MUTE DI Mute control bit 15 DVDD Digital 3 3V power supply 16 DVSS Digital ground 17 V...

Page 85: ...Power amplifier right channel PWM output positive end 44 PWM M 3 DO Power amplifier surround left channel PWM output negative end 45 PWM P 3 DO Power amplifier surround left channel PWM output positiv...

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Page 87: ...pply 34 OUT A O Subwoofer negative end output 35 OUT A O Subwoofer negative end output 36 GND Common 37 GND Common 38 OUT B O Subwoofer power amplifier positive output 39 OUT B O Subwoofer power ampli...

Page 88: ...WM negative signal input 9 RESET CD I Centre power amplifier reset signal Refer to table 3 10 PWM CM unused 11 PWM CP unused 12 DREG RIN Digital power supply regulator decoupling loop pin 13 M3 I Outp...

Page 89: ...Common 37 GND Common 38 OUT B O Left channel power amplifier output 39 OUT B O Left channel power amplifier output 40 PVDD B Left channel power amplifier power supply 41 PVDD B Left channel power ampl...

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Page 94: ...Whether laser head has laser emission...

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Page 107: ...44 PVDD_C 45 OUT_C 46 OUT_C 47 GND 48 GND 49 OUT_D 50 OUT_D 51 PVDD_D 52 PVDD_D 53 BST_D 54 GVDD 55 GND 56 PWM_BP 17 PWM_BM 18 RESET_AB 19 PWM_AM 20 PWM_AP 21 GND 22 DGND 23 GND 24 DVDD 25 GREG 26 GND...

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Page 112: ...wer board X502 shedding welding Not read CD or Power on automatically Decode board U214 not good flash halt when rading CD Panel N102 not good S0793 Not read CD or Decode board U201 not good MT1389 ha...

Page 113: ...wer amplifier board N5 not good CD4052 Power amplifier board C163 not good Power amplifier board N7 rosin joint CS5340 Rotate headphone noise Headphone terminal not good Power amplifier board N4 joint...

Page 114: ...e board XS206 not good SCART distortion AV 107 lack of element S video terminal not good SCART color distortion AV 102 incorrectly used S color distortion AV R105 not good SCART disturbance when beati...

Page 115: ...wer board U503 not good TL431 OPEN button has no function Panel R118 lack of element No progressive output Decode board U201 not good MT1389 No sound for subwoofer Power amplifier board R59 joint weld...

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Page 142: ...A A B B B B A A C C D D...

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Page 152: ...OSC 5 Dout 6 Din 7 CLK 8 STB 9 KEY1 10 KEY2 11 Vss 12 Vdd 13 Seg1 ks1 14 Seg2 ks2 15 Seg3 ks3 16 Seg4 ks4 17 Seg5 ks5 18 Seg6 ks6 19 Seg7 ks7 20 Seg8 ks8 21 Seg9 ks9 22 Seg10 ks10 23 Seg11 ks11 24 Seg...

Page 153: ...D3 AD4 AD5 AD6 A21 AD7 A17 A0 V18 VFDCK VFDAT VFDST SCL SDA RXD TXD URST IR DQM0 DQS0 DQ7 DQ6 DQ5 DQ4 DQ3 DQ2 DQ1 DQ0 DQ15 DQ14 R213 1K DQ9 DQ10 DQ11 DQ12 DQ13 DQ8 RAS CAS WE DQM1 LIMIT CS BA0 BA1 DMA...

Page 154: ...FR PWM_FL PWM_FL PGND C120 104 C121 104 R134 1 5 R136 1 5 C129 333 C130 333 PGND PGND PGND C179 104 PGND VCC28A R132 1 R131 1 C139 0 47u C140 0 1u C141 0 1u C143 103 C142 103 R144 1 R145 1 PGND L9 10u...

Page 155: ...Y6 VIDEO_Y VIDEO_C VIDIO COMP VIDIO Y1 VIDIO U VIDIO V ROUTX LOUTX VY VV VU VY VV VU VDATA3 VSYNC HSYNC A 12V 12V V100 8050 R114 33R R112 2 2K VDATA3 V101 8050 R115 1K R113 2 2K A 12V 12V HSYNC R116 7...

Page 156: ...3 FB 4 SYNC 5 7 6 U505 KA1M0880BTU TO 3P 5L TC513 1uF H GND D510 BYW29E200 XC502 104 X1 R521 2 2K R520 24K R513 820R C522 472 1 2 XS501 220V 2 3 4 8 10 14 6 11 13 T502 BCK 40 0244 0726 Vin 1 GND 2 Vou...

Page 157: ...VD111 VD110 VD100 L103 L104 R113 V101 C115 L114 C113 R109 C185 C114 L111 C112 R108 C184 C183 XC107 XC103 C119 C102 L122 C118 1DVR938 3 VD109 2004 10 05 VD108 L118 L121 R116 L106 R105 C106 C108 R104 X...

Page 158: ...5 2 2 AUDIO OUTPUT 2 BOARD 150 153...

Page 159: ...R135 R131 C129 C130 C26 R35 C30 R132 C123 VD7 VD1 R230 R5 C115 R202 C110 R116 R203 C114 C201 R205 R204 C119 C183 R185 R186 R141 C138 R140 C131 R130 C34 R34 C20 R206 R207 C116 R122 VD6 Y3 C175 C8 R21 C...

Page 160: ...C64 C9 C68 C11 C10 C65 C66 C71 C69 C12 C13 C70 5 2 4 AUDIO MAGNIFY 2 BOARD 152...

Page 161: ...C224 L309 L228 TC209 TC213 L207 C238 R227 C233 X201 R254 C223 C240 V305 TC302 TC303 C205 R322 C211 R331 TC204 C212 C310 R201 R202 R203 C308 TC206 R204 R208 R207 L302 TC308 R210 C209 R211 R306 R315 R3...

Page 162: ...3 C241 C239 C2158 C236 C235 C277 L249 R220 L234 C229 C221 R302 R224 C222 V302 C220 C219 R228 R311 R310 C243 C213 C210 C237 R317 C307 C254 R2165 R2166 C230 C2167 R215 R218 R318 C207 C256 C215 L201 R212...

Page 163: ...5 2 7 KEYSCAN 1 BOARD 155...

Page 164: ...VD106 VD107 CLK SDA STB DGND AGND HGND HDET MIC1 MIC2 H_L H_R IR J3 J4 HDET LOUT H_L HGND LEDDR N 1 0 2 D 5V DGND FL 21V FL MIC101 MIC100 5 2 8 KEYSCAN 2 BOARD 156...

Page 165: ...5 2 9 POWER BOARD 157...

Page 166: ...M RESISTOR 1 4W1MO 5 SHAPED 10 R504 0000651 CARBON FILM RESISTOR 1 2W 430O 5 SHAPED 12 5 R512 0010062 METAL FILM RESISTOR 1 4W2 2K 1 SHAPED 10 R521 0010063 METAL FILM RESISTOR 1 4W4 7K 1 SHAPED 10 R50...

Page 167: ...CD11K 16V470U 20 8 14 3 5 TC505 0260597 CD CD11 105 16V1000U 20 10 20 5 TC506 TC507 0260654 CD CD11K 16V2200U 20 10 25 5 TC508 TC509 0260558 CD CD11T 25V470u 20 10 16 5 TC504 TC512 0260665 CD CD11K 25...

Page 168: ...80553 IC LM431ACZ TO 92 U507 0880765 IC 5L0380R YDTU U501 0881500 IC KA1M0880BTU TO 3P 5L U505 1030007 PRESS SENSITIVITY RESISTOR 7D 471 10 5mm RV501 1050002 HEAT SENSITIVITY RESISTOR NTC SCK 104MS 20...

Page 169: ...E FILM RESISTOR 3W1K 5 SHAPED R 20 8 R198 0210145 METAL POLYESTER FILM CAPACITOR CL21X 100V 104K C5 C140 C141 0210165 METAL POLYESTER FILM CAPACITOR CL23X 63V 474 5 5 C42 C43 C45 C90 C13 9 C184 026012...

Page 170: ...0443 IC CD4052BCN DIP N5 0882375 IC RC4580 DIP N10 N11 0882351 IC NE4580 DIP N10 N11 1940007 SOCKET 7P 2 5mm XS201 1940009 SOCKET 8P 2 5mm XS401 1940140 CABLE SOCKET 14P 1 0mm STRAIGHT DUAL LINE PLUG...

Page 171: ...0960020 CRYSTAL OSCILLATOR 27 00MHz 49 S X201 1940140 CABLE SOCKET 14P 1 0mm STRAIGHT DUAL LINE PLUG XS207 1940065 SOCKET 13P 2 0mm XS206 1940005 SOCKET 6P 2 0mm XS303 XS201 1940024 SOCKET 5P 2 0mm X...

Page 172: ...16W 18K 5 0603 R210 0090197 SMD RESISTOR 1 16W 150K 5 0603 R319 R320 0090231 PRECISION SMD RESISTOR 1 16W 680K 1 0603 R317 R322 0090319 PRECISION SMD RESISTOR 1 16W 750K 1 0603 R227 0090034 SMD RESIST...

Page 173: ...03 C201 C204 C221 C24 0 0310066 SMD CAPACITOR 50V 102 10 0603 C278 C223 0310067 SMD CAPACITOR 50V 152 10 0603 C215 0310068 SMD CAPACITOR 50V 222 10 0603 C307 C310 0310201 SMD CAPACITOR 50V 153 10 0603...

Page 174: ...C TSOP U214 0881998 IC AT49BV162A 70TI TSOP U214 0881990 IC MT1389FE B B QFP U201 0881897 IC MT1389EE QFP U201 0881459 IC D5954 SOP U302 0881378 IC BA5954FP HSOP U302 1940094 CABLE SOCKET 24P 0 5mm SM...

Page 175: ...ER 8 8 10 DOUBLE FACED HARD 5232691 SOFT SPONGE SPACER 15 10 9 DOUBLE FACED HARD 5445683 PCB SEMI FINISHED PRODUCT 6DVR938 5 SMD DK1010S 2 0090149 SMD RESISTOR 1 10W 47O 5 0805 R122 0090193 SMD RESIST...

Page 176: ...0090014 SMD RESISTOR 1 16W 1K 5 0603 R115 0090017 SMD RESISTOR 1 16W 2 2K 5 0603 R112 R113 0090019 SMD RESISTOR 1 16W 4 7K 5 0603 R111 0090034 SMD RESISTOR 1 16W 100K 5 0603 R130 0090238 SMD RESISTOR...

Page 177: ...OTE CONTROL BOTTOM CASING RC 109 SILVER WHITE 3050750 BATTERY CASE DOOR OF REMOTE CONTROL RC 109 SILVER WHITE 3050603 GLASS OF REMOTE CONTROLLER YK10 BRIGHT PURPLE 3850068 ANODE CATHODE SPRING RC 109...

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