BBK LD3216DK Service Manual
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BBK LD3216DK Service Manual

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LD3216DK(RU)
Service Manual
Model version:V1C1V2.00
V1C5V2.00

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Summary of Contents for BBK LD3216DK

  • Page 1 LD3216DK(RU) Service Manual Model version:V1C1V2.00 V1C5V2.00...

  • Page 2: Table Of Contents

    Catalog Chapter One About Maintenance 1.1 Safety precautions 1.1.1 Power supply 1.1.2 Precautions for antistatic 1.1.3 Precautions for display screen 1.1.4 Precautions for laser head 1.1.5 About placement position 1.2 Maintenance method 1.2.1 Electric resistance method 1.2.2 Voltage method 1.2.3 Current method 1.2.4 Element substitution method 1.2.5 Cutting method 1.2.6 Visualized method...
  • Page 3 Others 2.4.1 Useful notes Chapter Three Principle and Servicing The previous manual: TV part Section One Principle of the player 3.1.1 OVerall wiring diagram 3.1.2 Block diagram of the player 3.1.3 Principle instruction for LD3216(RU) player 3.1.4 Audio circuit 3.1.5 Video circuit Section Two...

  • Page 4: Chapter One About Maintenance

    Chapter One About Maintenance 1.1 Safety precautions 1.1.1 Power supply When maintenance personnel are repairing DVD TV, he should pay special attention to the power with 220V 800V 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.

  • Page 5: Precautions For Laser Head

    1.1.4 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, and you may use cotton swab. 1.1.5 About placement position 1.

  • Page 6: Visualized Method

    1.2.6 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 of the machine and then use hands to touch the casing of part of elements and check whether they are hot to judge the trouble spot.

  • Page 7: Section One Tv Segment

    Chapter Two Functions and Operation Instructions 2.1 Section One TV SEGMENT 2.1.1 Features High quality 32"(16:9) color TFT-panel Maximum resolution 1366x768 Built-in DVD player with slot-in mechanism Multisystem TV tuner Built-in stereo acoustic system USB port, providing playback of files of supported formats form external flash memory devices HDMI interface provides high definition image and digital audio Composite audio, video inputs Component, S-VIDEO, RGB, SCART and VGA video inputs...

  • Page 8: Set List

    2.1.2 Set list 2.1.3 CONTROLS AND FUNCTIONS (1) Panel controls and indication Composite video/audio input - 5 -...
  • Page 9 (2) Remote control general view AUDIO button Press to choose NICAM mode in ATV/To change audio language in DVD/DTV mode. in DVD /Press to display current source infomation. RATIO button Press to switch to picture mode. /Press to switch one or two-digit program number.

  • Page 10: Connection And Starting

    2.1.4 CONNECTION AND ST ARTING RETURN SETUP AC Power input socket 220V AC power input. HDMI 1/2 IN S-VIDEO IN S-Video input port. VIDEO 1 IN VIDEO 1/ S-VIDEO AUDIO IN Used for ecternal video 1/ S-video audio input. YPBPR AUDIO IN YPbPr/ YCbCr audio input port.

  • Page 11: Tv Mode

    2.1.5 TV MODE Turn on the TV, press SOURCE b ut ton to chan ge source to DTV. Whe n ha s no p rogram , the NEW INSTALLATION me nu w ill b e d isp lay,then you can cha nge osd languag e and to auto search p rogram , then you can enj oy th e rich an d col orfu l contents of Dig ital Vid eo Broa d cast! NEW INSTALLATION In D TV m o d e, p ress SETUP bu t t on , t h en p ress...
  • Page 12 CHANNEL EDIT submenu enables to DELETE, SKIP and FAV the channel, press Channel Edit SETUP button to return, press CANCEL to exit CHANNEL EDIT menu. Press RED button to enter channel DELETE mode, then press OK button to delete the program that you select. Press CYAN button to SKIP program that you do not like.
  • Page 13 Block Programme CANCEL: Press CANCEL button to exit Block Program menu. LOCK: Press GREEN button to block the program that you select. SETUP: Press SETUP to return to Lock menu. OK: Press OK button to enter the program that you choose. 　...

  • Page 14: Atv Mode

    2.1.6 ATV MODE Channel setup Channel Stetup Channel Stetup CHANNEL item enables to select the number of adjustable channel. Channel Fine Tuning 112.25MHz Sound System MANUAL SEARCH ITEM enable to entry ATV MANUAL SEARCH menu Manual Search ATV Manual Search sub menu. Auto Search Storage To item enable to change channel what you want storage to Channel Edit...

  • Page 15: Section Two Dvd Segment

    2.2 Section Two DVD SEGMENT 2.2.1 2.2.2 For LD3216DK Note: This model does not support the 8cm disc. Do not insert that type of disc into this device to avoid disc jam. - 12 -...
  • Page 16 2.2.3 2.2.4 - 13 -...
  • Page 17 2.2.5 2.2.6 - 14 -...
  • Page 18 2.2.7 2.2.8 Options: Channels L, Channels R, Channels No ast., Channels No voc. 2.2.9 - 15 -...
  • Page 19 2.3.0 2.3.1 2.3.2 2.3.3 - 16 -...
  • Page 20 2.4. 2.4.1 2.4.2 1. Incorrect TV set setting 1. Correct the TV set settings. Ustable image or abnormal picture color 2. There is something wrong with the data in 2. Reset the TV set to default setting the E PROM. - 17 -...
  • Page 21 2.4.3 LD3216DK 31.5 392.3 697.7 0.17X0.51 1366x768 HDMI Karaoke 793.7x225x593.75 - 18 -...

  • Page 22: Chapter Three Principle And Servicing

    Chapter Three Principle and Servicing The previous manual: TV part Section One Principle of the player 3.1.1 Overall wiring diagram. EARPHONE& PANEL AV INPUT BOARD 73216-0 CN21 - 19 -...

  • Page 23: Block Diagram Of The Player

    3.1.2 Block diagram of the player LVDS CONNECTOR - 20 -...

  • Page 24: Principle Instruction For Ld3216(Ru) Player

    3.1.3 Principle instruction for LD3216(RU) player. LD3216(RU) is a TV combination product which incorporates DVD/DVB functions. 1.TVpartadopts MSD106CL+WJCE6353SL9G5+M24512WMN+TPA3123D2PWP+TDA1308+DTT X-5A1/12A25+V315B1-L01 2.DVD part adopts MT1389FE/L(L version )+AM5888S+AIC809-29CU+TD-S208S-SV1(62SV1 pick-up . To make us conveniently search, we separate the principle instruction into two parts. The first part is principle instruction and troubleshooting flow chart,etc.

  • Page 25: Video Circuit

    Audio output AUOUTL0 SCART_R amplifying SCART JACK SCART_L AUOUTR0 circuit SIFP AMP-PROUT AMP-PLOUT TUNER SIFM DVD_LIN Earphone DVD_RIN JACK DVD BOARD SPDIFO U202 AMP_RIN AMP_LIN CIAXIAL JACK MSD106CHL Audio CO_LIN amplify A-MUTE CO_RIN AV_LIN TPA3123 U107 AV1_LIN J5 Av1 INPUT AV1_RIN AV_RIN LINEOUTL...

  • Page 26: Section Two Troubleshooting Flow Chart

    Section Two Troubleshooting flow chart [ Flow chart 1 ] Not power on Trouble description: normal power on is unavailable Machine not power on Disconnect Check Check CN8 and flat cable whether power whether indication between powerboards to test Replace power board supply of main board whether 5V standby power light is on...
  • Page 27 Press Check whether power standby button Check Check MSD106 and supply voltage of each pin whether STB signal is to see whether player peripheral circuit on main board Cn8 is high level is normal normal power-on Check power board circuit Check Check whether +3.3V,...
  • Page 28 [ Flow chart 2 ] Symptom: no sound Description: there is image, but no audio output. No sound output external input and refer to troubleshooting flow DVD have no sound output chart of no sound for DVD Check whether MSD106 Check player volume setting has audio signal output and whether MSD106 works...
  • Page 29 Check whether TPA3123 Check mute circuit mute pin level is normal Replace TPA3123 Check Check whether circuit whether headphone Replace defective element from headphone board output is normal to main board is normal Replace headphone socket Check whether headphone Check headphone board board is normal and circuit Check loudspeaker...
  • Page 30 [ Flow chart 3 ] Symptom: display screen has no image output Description: white screen: background of player has only backlight but no image display. Blue screen : OSD appears blue, but no normal image display. Black screen: player power on normally, backlight of screen is not on. No image output White screen check...
  • Page 31 [ Flow chart 4 ] Symptom: TV cannot search channels Description: channel cannot be searched. T V cannot search channels Check Check whether tuner power whether tuner and TV signal have input has TUNER_CVBS and then change tuner signal output Check whether TUNER_CVBS Check the path between...
  • Page 32 [ Flow chart 5 ] Symptom: screen image flickers Description: screen image flickers and sound is normal. Screen image flickers Check whether screen Check whether software flickers under other version is correct signal source Judge whether it is the Check whether display screen back ground flat cable contact is good light that...
  • Page 33 [ Flow chart 6 ] Symptom: colour has distortion Description: picture colour has distortion. Colour has distortion Check whether the LVDS Check whether clock Check X2/C201/C202 output signal of frequency is normal MSD106 is normal Change MSD106 Check whether digital Check the path between signal of Cn1 is normal MSD106 and Cn1...
  • Page 34 Section Three Waveform diagram Waveform diagram could be used as reference in repair works. All the following waveform diagrams of video, audio signal adopt test result through TV playing signal disc. As parameter of player has modification, as well as different disc content. Thus, this test result could only be used as reference instead of standard.
  • Page 35 3. U203_1 (CE) gating signal waveform diagram. 4. U203_6 (SCK) clock signal input waveform diagram. 5. U203_5 (SI) data input pin waveform diagram. - 32 -...
  • Page 36 6. MS06 clock signal waveform diagram: waveform diagram when X2 is working (frequency 12MHZ,PK-PK=1.72V,CYC-RMS1.65V). 7. Outputted digital audio signal waveform diagram under DVD state, test point C20. 8. U201_6: waveform diagram of SCL in IIC bus.(function operation is test result - 33 -...
  • Page 37 9. U103_5:waveform diagram of SDA in IIC bus.(function operation is test result 0. TV audio signal waveform diagram: waveform diagram for audio signals outputted by TU1_11 pin when machine is receiving standard signal source in TV mode.(amplitude of signal waveform is related with input source 11.
  • Page 38 12. Waveform diagram inputted by pin CN2_9/10 under DVD state during playing test disc. Signal amplitude is varied with disc content. 14. U4_5/6 waveform diagram, this signal amplitude is related with volume. The below is tested waveform when volume is 100. 15.
  • Page 39 The next manual: DVD part Section One Principle of the player 3.1.1 Block diagram for player. - 36 -...
  • Page 40 Section Two Unit circuit principle 3.2.1 Servo circuit Servo system of this player adopt SANYO loader and MTK decoding solution. Structure part of loader adopt slot-in loader. And servo circuit is mainly composed of front-end signal processing and digital servo processing, digital signal processing chip MT1389L and driving circuit chip Am5888, of which, MT1389L is also main composing part of decoding circuit.
  • Page 41 3.2.2 Decoding circuit. Decoding circuit is mainly composed by MT1389L, SDRAM and FLASH, block diagram of circuit is shown in figure 3.2.2.1: SDCLK SF_CS SF_DO FLASH SF_DI SF_CK MT1389L SDRAM DQM0 27MHz DQM1 DQ0~DQ15 URST Reset circuit MA0~MA11 Figure 3.2.2.1 Block diagram of decoding circuit 3.2.3 Audio/Video Circuit.
  • Page 42 Section Three Troubleshooting flow chart [ Flow chart 1 ] Symptom: troubleshooting flow chart for DVD part DVD does not work. DVD does not work Whether Switch player to player is switched to DVD state DVD state correctly Check Check whether +5V Replace Q3 to check whether Q3_B...
  • Page 43 [ Flow chart 2 ] Symptom: troubleshooting flow chart: not reading disc Not reading disc: power-on image is normal, disc content can not be read; player ejects tray automatically or show no disc. Not reading disc Check Whether whether replacing tray open/ close motion Check tray open/close player is normal...
  • Page 44 [ Flow chart 3 ] Symptom: DVD has no image Description: DVD has no image but has sound. No image output under DVD state Whether Please refer to troubleshooting no image output only flow chart of no image on screen when all channels happens under have no image output DVD state...
  • Page 45 [ Flow chart 4 ] Symptom: DVD has no sound Trouble description: when machine is set in DVD state, there is image but no sound. External input and TV sound are normal. No sound output under DVD working state Whether Please check troubleshooting no sound happens flow chart of no sound output...
  • Page 46 [ Flow chart 5 ] Symptom: Troubleshooting flow chart of no sound for MIC (check whether MIC is on before detecting, whether player outputs sound normally). No sound for MIC Whether player is switched Switch to DVD state to switch on to DVD state and whether MIC switch MIC switch is on...
  • Page 47 Section Four Waveform Diagram This section collects signal waveform diagram of audio, video and each unit circuit 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.
  • Page 48 3. Waveform diagram for FMO signal when pick-up has FMSO motion). Vpp=13.4V 4. Waveform diagram for TRO when pick-up has TRSO motion . Vpp=4.2V 5. Waveform diagram for FOO when pick-up has FOSO motion . Vpp=5.1V - 45 -...
  • Page 49 6. Video signal waveform diagram. 7. 1KHZ audio signaal output waveform diagram(it is suggested to use test disc,if not,waveform tested will change at any time,which will affect your judgment). 8. Data waveform diagram for pin 2 of SDRAM - 46 -...
  • Page 50 9.Waveform diagram for pin38 when SDRAM is in working state 128MHZ VPP=1.37V 10. Waveform diagram for SDRAM DQM0 signal U3_15 11. Waveform diagram for pin 1 SF_CS of FLASH U5 - 47 -...
  • Page 51 12.SF_DO waveform diagram for FLASH U5_2 pin SF_DO 13. Waveform diagram of pin 5 SF_DI of FLASH 14. Waveform diagram for pin 6 SF_CK of FLASH. - 48 -...
  • Page 52 Chapter Four Explosion Flow Chart - 49 -...
  • Page 53 Serial Material code Material name Specification number 3006013 Front case LD3216DK(RU) black 3077169 Lens of remote control LD3216DK(RU) transparent 4942170 PCB semi-manufactured product B3216-0 LD3216DK(RU) 1100867 Loudspeaker 5W 8Ω external magnetic 120×52×37 1210580 Display screen component V315B1-L01 31.5 inches TFT...
  • Page 54 Chapter Cinque PCB Board&Circuit Diagram Section One PCB Board 5.1.1 TOP layer of TV Main Board(23216-1) - 51 -...
  • Page 55 5.1.2 TOP layer of DVD Board(2D3216-1) - 52 -...
  • Page 56 5.1.3 TOP layer of A/V input Board(73216-0) 5.1.4 Bottom layer of A/V input Board(73216-0) - 53 -...
  • Page 57 Circuit Diagram Section Two 5.2.1 TV Main Board. - 54 -...
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  • Page 64 5.2.2 DVD Main Board. - 61 -...
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  • Page 68 5.2.3 A/Vinput Board. - 65 -...
  • Page 69 Chapter Six BOM List LD3216DK(RU)BLACK 4942172,MAIN BOARD MATERIAL MATERIAL NAME SPECIFICATIONS LOCATION CODE L14,L105,L802~L803,R30~R31,R39,R57,R135,R165,R2 0090001 SMD RESISTOR 1/16W 0Ω±5% 0603 59,R435,R605,R612,R620,R723~R724,R162~R164 0090003 SMD RESISTOR 1/16W 10Ω±5% 0603 R44,R357,R843,R885 0090004 SMD RESISTOR 1/16W 22Ω±5% 0603 R304~R305,R311,R142,R113 R241,R255~R256,R274~R275,R600,R608~R609,R614~ 0090005 SMD RESISTOR 1/16W 33Ω±5% 0603...
  • Page 70 MATERIAL MATERIAL NAME SPECIFICATIONS LOCATION CODE 0090034 SMD RESISTOR 1/16W 100K±5% 0603 R74,R715 0090114 SMD RESISTOR 1/8W 0Ω±5% 1206 R11,R907,R168,L12,L3 R21,R216,R227~R228,R235,R249,R828,R24,R41,R47,R 50,R53~R54,R67,R73,R189~R190,R215,R230,R232,R3 0090181 SMD RESISTOR 1/16W 100Ω±5% 0603 17,R322,R545,R576,R610~R611,R626,R719,R805,R808 ,R825~R826,R108,R510,R526 R97,R145,R147,R829,R853~R854,R858,R865,R869~R8 0090187 SMD RESISTOR 1/16W 12K±5% 0603 0090192 SMD RESISTOR 1/16W 51K±5% 0603 R713 0090214...
  • Page 71 MATERIAL MATERIAL NAME SPECIFICATIONS LOCATION CODE SMD RESISTOR 1/16W33Ω±5% 0603×4 0100019 RP200,RP600~RP601 NETWORKS PROTRUDING SMD RESISTOR 0100020 1/16W100Ω±5% 0603×4 CONCAVE RP51~RP52 NETWORK SMD RESISTOR 0100028 1/16W 22Ω±5% 8P RP300~RP303,RP1,RP2,RP3,RP4 NETWORK 02606039 CD11T 35V470U M 10×20 5 BELT CE1~CE2,CE10,CE15 CE16,CE4,CE11~CE13,CE41,CE3,CE8~CE9,CE19,CE2 02606859 C11T 16V100u±20%6×12 C5 BELT 1,CE23 02607139...
  • Page 72 MATERIAL MATERIAL NAME SPECIFICATIONS LOCATION CODE 0310461 SMD CAPACITOR 10V 475+80%-20% 0805 C5~C7,C23,C122~C123,C784~C785 C54,C119,C517,C520,C530,C620,C813,C824~C825,C8 0310566 SMD CAPACITOR 10V 225 +80%-20% Y5V 0603 27,C829~C830,C838,C876,C944,C952,C975,C978,C982 ,C507,C512 C1~C2,C8~C10,C12,C15~C16,C18,C20~C22,C26~C27, C29~C30,C34~C35,C38~C39,C41~C49,C901,C904,C76 ,C78,C79,C100,C115,C130,C132,C203,C206,C208,C21 0,C218~C220,C222,C225~C226,C237~C238,C278,C297 0310594 SMD CAPACITOR 25V 104±10% 0603 ,C302,C304~C311,C418,C504,C526,C535,C601,C606~ C608,C613,C615~C616,C622~C635,C701~C702,C748, C796,C803,C811,C844,C907,C918,C920,C924,C926,C9 29,C931~C934,C936,C938~C940,C943,C945~C947,C94 9~C950,C953~C959,C964~C970,C976,C230 0310543 SMD CAPACITOR 50V 104±10% 7R 0603 0310190...
  • Page 73 MATERIAL MATERIAL NAME SPECIFICATIONS LOCATION CODE 0780197 SMD TRIODE C1815 Q2,Q6,Q13,Q24,Q26,Q36,Q703 SMD FIELD EFFECT 0790044 27002E SO23 TRANSISTOR FIELD EFFECT 0790097 AO4419 SO8 V1,V9 TRANSISTOR 0880768 C4558 SOP U502 0881537 1308 SOP U501 0881914 R9701CB SO25 0882267 FS330 TSSOP U3,U801 0882461 AZ1117ADJ SO223 U904...
  • Page 74 MATERIAL MATERIAL NAME SPECIFICATIONS LOCATION CODE 0884110 AOZ1047AI SO-8 1940005 SOCKET 6芯 2.0mm CN10 SOFTWARE 0900526 ROM2216DXRU-0A(128B) U802 PROGRAM EPROM 0912175 PROGRAM FLASH ROM3216DKRU-0A(32M) U204 SMD CRYSTAL 0960237 12.00MHz 49-S OSCILLATOR CRYSTAL 0960277 20.48MHz±30PPM 49-S 20P OSCILLATOR 1020119 TUNER DTTX-5A1/12A25 SMD PRESS D1,D4,D7~D8,D10,D11,D13,D15~D19,D21~D22,D24~D 1030036...
  • Page 75 MATERIAL MATERIAL NAME SPECIFICATIONS LOCATION CODE 5141756 VERSION LABEL 2.01SQUARENESS WHITE 08810798 AT24C04 SOP$ LD3216DK(RU)BLACK 4942168,TV BUTTON BOARD MATERIAL MATERIAL NAME SPECIFICATIONS LOCATION CODE CARBON FILM 0000124 1/6W470Ω±5% SHAPED 7.5 R403,R407 RESISTOR CARBON FILM 0000129 1/6W1K±5% SHAPED 7.5 R408 RESISTOR...
  • Page 76 INSERT SHIELD Φ3.5 ST-215N-050-100 STRAIGHT 1980143 EARPHONE SOCKET PLUG 11P360 2.0 T2 WITH NEEDLE，THE 2122965 FLAT CABLE SAME DIRECTION 5141755 VERSION LABEL 2.00SQUARENESS WHITE LD3216DK(RU)BLACK 4942173,DVD BOARD MATERIAL MATERIAL NAME SPECIFICATIONS LOCATION CODE R37,R44,R46~R48,R51~R53,R55,R130,R27~R28,R77,R 0090001 SMD RESISTOR 1/16W 0Ω±5% 0603 0090003 SMD RESISTOR 1/16W 10Ω±5% 0603...
  • Page 77 MATERIAL MATERIAL NAME SPECIFICATIONS LOCATION CODE 0090181 SMD RESISTOR 1/16W 100Ω±5% 0603 R18~R21,R470~R471 0090187 SMD RESISTOR 1/16W 12K±5% 0603 0090188 SMD RESISTOR 1/16W 18K±5% 0603 0090189 SMD RESISTOR 1/16W 30K±5% 0603 R462~R463 0090232 SMD RESISTOR 1/16W 150Ω±5% 0603 R124 0090237 SMD RESISTOR 1/16W 39Ω±5% 0603 R138...
  • Page 78 MATERIAL MATERIAL NAME SPECIFICATIONS LOCATION CODE 0310774 SMD CAPACITOR 25V 152±5% 7R 0603 0390044 SMD INDUCTOR 10UH±10% 2012 SMD MAGNETIC L1,L7~L9,L12,L30,L2,L22~L27,L191,L194~L195,L17~L1 0390095 FC160822105 BEADS 8,L95~L96 0390096 SMD INDUCTOR 1.8UH±10% 1608 L11,L37~L39 SMD MAGNETIC 0390287 19Ω/100mHZ±25% 1608 L198~L204,L206~L209,L925~L926 BEADS SMD MAGNETIC L19,L3~L4,L16,L20~L21,L29,L31,L35~L36,L193,L197,L2 0390300 600Ω/100MHZ±25% 1608...
  • Page 79 MATERIAL MATERIAL NAME SPECIFICATIONS LOCATION CODE 1635480 2D3216-1 FR4 D1.6 PX 1860074 USB SOCKET 2UB-0001000 1940022 SOCKET 4P 2.0mm CN25 1940026 SOCKET 3P 2.0mm CN15,CN106 1940027 SOCKET 2P 2.0mm CN23 6P 1.0 DUAL RANK TOUCH 1940264 CABLE SOCKET CN26 POINT,SMD,VERTICAL 1940496 CABLE SOCKET 24P 0.5mm SMD VERTICAL...

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