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BBK DL372D Service Manual

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SERVICE MANUAL
DL372D

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Summary of Contents for BBK DL372D

  • Page 1 SERVICE MANUAL DL372D...

  • Page 2: Table Of Contents

    C O N T E N T S S AF E T Y P R EC AUT IONS P R E V E NT ION OF E LE C T R O S TATIC DIS C HAR G E (E S D)TO E LE C T R OS TATIC ALLY S E NS IT IV E (E S )DE V IC E S C ONT R OL B UT T ON LOC AT IONS AND E XP LANAT IONS P R E V E R TION OF S TATIC E LE C T R IC IT Y DIS C HAR G E...

  • Page 3: S Af E T Y P R Ec Aut Ions

    1. SAFETY PREAUTIONS 1.1 GENERAL GUIDELINES 1. When servicing, observe the original lead dress. if a short circuit is found, replace all parts which have been overheated or damaged by the short circuit. 2. After servicing, see to it that all the protective devices such as insulation barrier, insulation papers shields are properly installed.

  • Page 4: Control Button Locations And Explanations

    Control Button Locations and Explanations Color TFT LCD IR sensor REW Button LEFT direction arrow P/N button DOWN direction arrow Keyboard Button SELECT button SETUP Button RIGHT direction arrow OPEN/CLOSE button UP direction arrow Speakers MENU Button PLAY button / PAUSE button PICTURE button PREV Button STOP button...
  • Page 5 Remote Control Illustration LOGO Button Set the played image as the power-on logo. AUDIO Button Change the audio language or audio channel. GOTO button Play from the desired location. ZOOM Button Zoom in /out the displayed frame. ANGLE Button Change camera angles, MP3/JPEG playback modes switch.

  • Page 6: P R E V E R Tion Of S Tatic E Le C T R Ic It Y Dis C Har G E

    4.PREVENTION OF STATIC ELECTRICITY DISCHARGE The laser diode in the traverse unit (optical pickup)may brake down due to static electricity of clothes or human body. Use due caution to electrostatic breakdown when servicing and handling the laser diode. 4.1.Grounding for electrostatic breakdown prevention Some devices such as the DVD player use the optical pickup(laser diode)and the optical pickup will be damaged by static electricity in the working environment.Proceed servicing works under the working environment where grounding works is completed.

  • Page 7: Electrical Confirmation

    5.Electrical Confirmation 5.1. Video Output (Luminance Signal) Confirmation DO this confirmation after replacing a P.C.B. Measurement point Mode Disc Color bar 75% DVDT-S15 Video output terminal PLAY(Title 46):DVDT-S15 PLAY(Title 12):DVDT-S01 DVDT-S01 Measuring equipment,tools Confirmation value 200mV/dir,10 sec/dir 1000mVp-p±30mV Purpose:To maintain video signal output compatibility. 1.Connect the oscilloscope to the video output terminal and terminate at 75 ohms.

  • Page 8: Ide O Out P Ut (C Hr Ominanc E S Ig Nal) C Onf Ir Mation

    5.2 Video Output(Chrominance Signal) Confirmation Do the confirmation after replacing P.C.B. Measurement point Mode Disc Color bar 75% DVDT-S15 Video output terminal PLAY(Title 46):DVDT-S15 PLAY(Title 12):DVDT-S01 DVDT-S01 Measuring equipment,tools Confirmation value Screwdriver,Oscilloscope 200mV/dir,10 sec/dir 621mVp-p±30mV Purpose:To maintain video signal output compatibility. 1.Connect the oscilloscope to the video output terminal and terminate at 75 ohme.

  • Page 9: Mpeg Board Check Waveform

    6.MPEG BOARD CHECK WAVEFORM 6.1 27MHz WAVEFORM DIAGRAM...

  • Page 10: Mt1389

    7.2 MT1389 MT1389 Progressive-Scan DVD Player SOC Specifications are subject to change without notice MediaTek MT1389 is a DVD player system-on-chip (SOC) which incorporates advanced features like high quality TV encoder and state-of-art de-interlace processing. The MT1389 enables consumer electronics manufacturers to build high quality, cost-effective DVD players, portable DVD players or any other home entertainment audio/video devices.

  • Page 11: Hy29Lv160

    IC BLOCK DIAGRAM & DESCRIPTION HY29LV160 16 Mbit (2M x 8/1M x 16) Low Voltage Flash Memory KEY FEATURES Single Power Supply Operation 100,000 Write Cycles per Sector Minimum – Read, program and erase operations from Data# Polling and Toggle Bits 2.7 to 3.6 volts –...

  • Page 12: Block Diagram

    IC BLOCK DIAGRAM & DESCRIPTION HY29LV160 BLOCK DIAGRAM DQ[15:0] A[19:0], A-1 STATE C O N T R O L ERASE VOLTAGE I/O BUFFERS G E N E R A T O R A N D DQ[15:0] S E C T O R S W I T C H E S C O M M A N D W E # REGISTER...
  • Page 13 IC BLOCK DIAGRAM & DESCRIPTION HY29LV160 PIN CONFIGURATIONS 48-Ball FBGA (Bottom View) A[13] A[12] A[14] A[15] A[16] BYTE# DQ[15]/A[-1] A[9] A[8] A[10] A[11] DQ[7] DQ[14] DQ[13] DQ[6] W E # RESET# A[19] DQ[5] DQ[12] DQ[4] RY/BY# A[18] DQ[2] DQ[10] DQ[11] DQ[3] A[7] A[17]...
  • Page 14 HY57V641620HG 4 Banks x 1M x 16Bit Synchronous DRAM 7.4 HY57V641620HG DESCRIPTION The Hyundai HY57V641620HG is a 67,108,864-bit CMOS Synchronous DRAM, ideally suited for the main memory applications which require large memory density and high bandwidth. HY57V641620HG is organized as 4banks of 1,048,576x16. HY57V641620HG is offering fully synchronous operation referenced to a positive edge of the clock.
  • Page 15 HY57V641620HG PIN CONFIGURATION DQ15 DQ14 DQ13 DQ12 DQ11 DQ10 54pin TSOP II 400mil x 875mil 0.8mm pin pitch LDQM UDQM /CAS /RAS A10/AP PIN DESCRIPTION PIN NAME DESCRIPTION The system clock input. All other inputs are registered to the SDRAM on the Clock rising edge of CLK Controls internal clock signal and when deactivated, the SDRAM will be one...

  • Page 16: Hy57V641620Hg

    HY57V641620HG FUNCTIONAL BLOCK DIAGRAM 1Mbit x 4banks x 16 I/O Synchronous DRAM Self refresh logic Internal Row & timer counter 1Mx16 Bank 3 1Mx16 Bank 2 Row active Decoders 1Mx16 Bank 1 1Mx16 Bank 0 Memory refresh Cell Array Column Column Active UDQM...

  • Page 17: Schematic & P.c.b Wiring Diagram

    8.SCHEMATIC & P.C.B WIRING DIAGRAM DECODE BOARD...
  • Page 21 DECODE BOARD...
  • Page 22 BATTERY CHARGER...
  • Page 23 BATTERY CHARGER...
  • Page 24 MAIN FRONT PANEL...
  • Page 25 MAIN FRONT PANEL...
  • Page 26 LCD DRIVE BOARD LCD DRIVE BOARD LCD DRIVE BOARD LCD DRIVE BOARD LCD DRIVE BOARD + I /P B G ND -I/P B +I/P A O / P B - I /P A O / P A...
  • Page 27 LCD DRIVE BOARD...
  • Page 28 BOOST BOARD...
  • Page 29 BOOST BOARD...
  • Page 30 BOOST BOARD...
  • Page 31 BOOST BOARD...

  • Page 32: S P Ar E P Ar T S Lis T

    9.DL372D ATERIAL LIST DL372D MATERIAL LIST 1. LARGE BUTTONS BOARD MATERIAL CODE MATERIAL NAME SPECIFICATIONS UNIT UANTI LOCATION 0090008 SMD RESISTOR 1/16W 220Ω ±5% 0603 R1~R12 10P 1.0mm DUAL LINE CONTACT POINT SMD 1940294 CABLE SOCKET XS401 HORIZONTAL 4P 1.0mm DUAL LINE CONTACT POINT SMD...
  • Page 33 0881539 NJM3414AM SOP 0882268 AAT1102M MSOP 0882114 AMS1117-3.3 SOT-223 U7,U8 0882485 AZ1117H-3.3 SOT-223 U7,U8 0881182 LM1117MP-ADJ SOT-223 0960020 CRYSTAL OSCILLATOR 27.00MHz 49-S 1940194 CABLE SOCKET 26P 0.5mm SMD WITH CLASP 1940237 SOCKET 20P 0.8mm SMD 0390025 BGH2012B601L L15,L16,L19 0390302 SMD MAGNETIC BEADS MGHB1608S102 0881914 RT9701CB SOT25...
  • Page 34 BATTERY CASE UPPER COVER 5142620 SN LABEL PORTABLE DVD BATTERY WITH BAR CODE SUIT 3071770 UPPER COVER OF BATTERY CASE DL372D(RU) CERAMIC WHITE 3071771 LOWER COVER OF BATTERY CASE DL372D(RU) CERAMIC WHITE 3070988 BATTERY PUSH BUTTON DL369 CERAMIC WHITE 3810023...
  • Page 35 1090083 ESD COMPONENTS UCLAMP0506A SC-89 T3,T4 0090006 SMD RESISTOR 1/16W 75Ω ±5% 0603 R401 0090232 SMD RESISTOR 1/16W 150Ω ±5% 0603 R402,R403 90181 SMD RESISTOR 1/16W 100Ω ±5% 0603 R703 0090009 SMD RESISTOR 1/16W 330Ω ±5% 0603 R309,R310,R451 0090012 SMD RESISTOR 1/16W 560Ω...
  • Page 36 0780085 SMD TRIODE 8050D V304,V307,V308,V801,V802 0780129 SMD TRIODE 8550D(160-300) SOT-23 V303,V305 0780197 SMD TRIODE C1815 V301,V302,V310,V311 0780193 SMD TRIODE 2SK3018 VD102,VD103 0780115 SMD TRIODE 2SB1132 VD104,VD105 0780040 SMD TRIODE 3904(100-300) SOT-23 VD101 0790021 FIELD EFFECT TUBE IRF7416 SOP QB501 0790082 SMD FIELD EFFECT TUBE AO3419 SOT-23 QB502,QB503...

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