Daewoo DHC - 2300K Service Manual
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Daewoo DHC - 2300K Service Manual

Daewoo DHC - 2300K Service Manual

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DVD PLYAER
DHC - 2300K
SERVICE
Manual
CONTENTS
DVD PLAYER

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Summary of Contents for Daewoo DHC - 2300K

  • Page 1: Table Of Contents

    DVD PLYAER DHC - 2300K SERVICE Manual CONTENTS DVD PLAYER 1. Precautions 2. Reference Information 3. Product Specification 4. Operating Instructions 5. Disassembly and Reassembly 6. Troubleshooting 7. Electrical Part List 8. Block Diagram 9. PCB Diagrams 10. Wiring Diagram...

  • Page 2: Precautions

    1. Precautions 1-1 Safety Precautions 1) Before returning an instrument to the customer, and then in the OFF position, measure from a always make a safety check of the entire known earth ground (metal water pipe, conduit, instrument, including, but not limited to, the etc.) to all exposed metal parts of the following items: instrument (antennas, handle brackets, metal...

  • Page 3: Safety Precautions

    Safety Precautions (5) within the limits specified, there is the possibility the AC power cord for damage. of a shock hazard, and the instrument must be re-pared and rechecked before it is returned to 5) Components, parts, and/or wiring that appear to the customer.

  • Page 4: Servicing Precautions

    1-2 Servicing Precautions CAUTION : Before servicing Instruments covered (3) The components used in the unit have a by this service manual and its supplements, read specified flame resistance and dielectric and follow the Safety Precautions section of this strength. manual.

  • Page 5: Esd Precautions

    1-3 ESD Precautions Electrostatically Sensitive Devices (ESD) its protective package until immediately before you are ready to install it. (Most replacement ESD Some semiconductor (solid state) devices can be devices are packaged with leads electrically damaged easily by static electricity. shorted together by conductive foam, aluminum Such components...

  • Page 6: Reference Information

    2. Reference Information 2-1 Component Descriptions 2-1-1 DVD ATAPI LOADER (DSL-710A) * D.C. Power Supply A 4-pin shrouded, keyed male connector is used to provide the D.C. Power. The pin assignment is described below. DC VOLTS +12V Figure-1 D.C. Power Connector * Interface Connector A 39-pin male, unshielded, shrouded, keyed connector are applied.
  • Page 7 Component Descriptions I/F Signals I/O Pin # I/F Signals I/O Pin # Reset DMARQ DIOW DIOR IORDY DD10 CSEL DMACK DD11 INTRQ DD12 IOCS16 DD13 PDIAG DD14 CS1FS DD15 CS3FS DASP Appendix 1. DSL-710A Block Diagram 33.86MHz MT1368 Disc (Decoder/Servo) MT1366 ATAPI (RF AMP.)
  • Page 8 Component Descriptions Appendix 2. Key-Components List Items Model No. Maker Location DMDSPC41C Samsung Korea Spindle Motor RSM-2811F Samhongsa Korea RF-300CA-11440 Mabuchi Japan Loading Motor MDN3BL3CSA Matsushita Japan RF-300CA-11440 Mabuchi Japan Sled Motor MDN3BL3CSA Matsushita Japan Laser Pick-up SF-HD3 Sanyo Japan Actuator Drive BA5954FP Rohm...
  • Page 9 Component Descriptions 2-1-2 Fiber Optic Transmitting Module for Digital Audio Eqipments (TOTX178) * Recommended Operating Conditions Item Symbol Min. Typ. Max. Unit Supply Voltage 4.75 5.25 High Level Input Voltage Low Level Input Voltage...
  • Page 10 Component Descriptions 2-1-3 NTSC/PAL Digital Video Encoder (ADV7170)
  • Page 11 Comonent Descriptions...
  • Page 12 Comonent Descriptions...
  • Page 13 Component Descriptions 2-1-4 DVD Processor Chip (Swan-2 ES4318) * Features Single-chip DVD video decoder in a 208-pin PQFP package Supports MPEG-1 system and MPEG-2 program streams Programmable multimedia processor architecture Compatible with Audio CD, Video CD, VCD 3.0, and Super Video CD(SVCD) DVD Navigation 1 Built-in Content Scrambling System(CSS) Audio...
  • Page 14 Component Descriptions * Functional Description...
  • Page 15 Component Descriptions * Pinout Diagram...
  • Page 16 Component Descriptions *PIN DESCRIPTION Name Number Definition 1, 9, 18, 27, 35, 44, 51, 59, 68, 75, 83, 92, 99, 104, 111, 3.65 V ± 150 mv. 121, 130, 139, 148, 157, 164, 172, 183, 193, 201 LA[21:0] 23:19,16:10,7:2,207:204 Device address output. 8,17,26,34,43,52,60,67,76,84,91,98,103, 112,120,129,1 Ground.
  • Page 17 Component Descriptions Name Number Definition Horizontal synch for screen video HSYNCH# interface, programmable for rising or falling edge, active low. HD[15:0] 141:140, 137:131, 128:122 Host data bus HCS1FX# Host select 1. HCS3FX# Host select 3. HIOCS16# Device 16-bit data transfer. HA[2:0] 158, 155:154 Host address bus.
  • Page 18 Component Descriptions 2-1-5 DIGITAL-TO-ANALOG STEREO AUDIO CONVERTER (CS4391)
  • Page 19 Component Descriptions...
  • Page 20 Component Descriptions...
  • Page 21 Component Descriptions...
  • Page 22 Component Descriptions 2-1-6 DIGITAL-TO-ANALOG STEREO AUDIO CONVERTER (CS4340)
  • Page 23 Component Descriptions...
  • Page 24 Component Descriptions...
  • Page 25 Component Descriptions ABSOLUTE Maximum Ratings Power Suppiy Voltage……………………………6.0V Input Current………………………………………15mA Power Dissipatron…………………………………75mW Operating Temperature Range………………….-55~+125°C Storage Tenperature……………………………..-65~+150°C...
  • Page 26 Component Descriptions 2-1-7 8-BIT MTP MICROCONTROLLER (W78LE52) * FEATURES Fully static design 8-bit CMOS microcontroller 256 bytes of on-chip scratchpad RAM 8 KB electrically erasable/programmable MTP-ROM 64 KB program memory address space 64 KB data memory address space Four 8-bit bi-directional ports Three 16-bit timer/counters One full duplex serial port(UART) Watchdog Timer...
  • Page 27 Component Descriptions * PIN DESCRIPTION SYMBOL DESCRIPTIONS EXTERNAL ACCESS ENABLE: This pin forces the processor to execute out of external ROM. It should be kept high to access internal ROM. The ROM address and data will not be presented on the bus if EA pin is high and the program counter is within on-chip ROM area.
  • Page 28 Component Descriptions * BLOCK DIAGRAM * ABSOLUTE MAXIMUM RATINGS PARAMETER SYMBOL MIN. MAX. UNIT DC Power Supply VDD-VSS -0.3 +7.0 Input Voltage VSS -0.3 VDD +0.3 Operating °C Temperature Storage Temperature +150 °C...
  • Page 29 Component Descriptions 2-1-8 Serial EEPROM, 2K (256 x 8) (AT24C02) * Features • Low-Voltage and Standard-Voltage Operation – 5.0 (V CC = 4.5V to 5.5V) – 2.7 (V CC = 2.7V to 5.5V) – 2.5 (V CC = 2.5V to 5.5V) –...
  • Page 30 Component Descriptions 2-1-9 4-Megabit (512K x 8) FLASH (A29040) * Features • 5.0V±40% for read and write operations • Access time –70max • Current –20 mA typical active read current –30 mA typical program/erase current –1µA typical CMOS Standby • Flexible sector architecture –...
  • Page 31 Component Descriptions Block Diagram * Absolute Maximum Ratings* Ambient Operating Temperature ...... -55°C to +125°C Storage Temperature ........…. -65°C to +150°C VOC Ground .……………………………………..-2.0V to +7.0V Output Voltage…………………………………… -2.0V to +7.0V...
  • Page 32 Component Descriptions 2-1-10 512K X 16 Bit X 2 Banks Synchronous DRAM (A43L0616) Features JEDEC standard 3.3V power supply LVTTL compatible with multiplexed address Dual banks / Pulse RAS MRS cycle with address key programs CAS Latency (2,3) Burst Length (1,2,4,8 & full page) Burst Type (Sequential &...
  • Page 33 Component Descriptions Block Diagram Pin Descriptions Symbol Name Description System Clock Active on the positive going edge to sample all inputs. Disables or Enables device operation by masking or enabling Chip Select all inputs exceptCLK, CKE and L(U)DQM Masks system clock to freeze operation from the next clock cycle.

  • Page 34: Product Specification

    3. Product Specifications Playback System DVD Video Video CD (1.1, 2.0, 3.0) SVCD and CVD CDDA CD-ROM with MP3 data Television Signal System NTSC/PAL Video Performance Video Out 1 Vpp into 75 ohm Y : 1 Vpp into 75 ohm S-Video Out C : 0.286 Vpp into 75 ohm Component Out...

  • Page 35: Product Specifications

    Product Specifications Connections Coaxial digital out Audio Analog out for 2-channel SCART connector for Component Video SCART connector for External Video X1 (option) Composite Video out S-Video out Optical out Power Supply Power Source AC 90~250V, 50/60Hz Power Consumption < 25 Watt Dimensions (W X H X D) 420 X 84 X 270 (mm ) Net Weight...

  • Page 36: Operating Instructions

    4. Operating Instructions 4-1 Basic Connections Connecting to audio equipment Audio equipment TV set S-Video cable (optional) To S-Video input connector Video/audio cable (supplied) To video input connector (yellow) Audio cable (optional) To audio input connector (red, white) Connecting to a monaural TV set Video/audio cable (supplied) To video input connector (yellow) Audio cable (optional)
  • Page 37 Operating Instructions Connecting to a decoder with a Dolby Digital or DTS processing TV set Video/audio cable (supplied) Optical audio cable (optional) Coaxial audio cable (optional) To optical digital audio input To coaxial digital audio input Decoder or Amplifier with Dolby Digital / dts Centre Front...
  • Page 38 Operating Instructions 4-2 Selecting Video MODE Press SETUP button and select VIDEO submenu on SETUP screen. After that, select TV type by pressing DOWN arrow button ( ▼) until desired TV mode is selected. For more information, refer to 7.2 Video on the Instruction Manual.
  • Page 39 Operating Instructions 4-5 Selecting the desired MP3 title Use arrow button and select an MP3 title using the SELECT button then play will start automatically. When you know the title number, enter the MP3 title number using numeric buttons and press the SE- LECT button.
  • Page 40 Operating Instructions 4-8 Slow Viewing When you want to view the disc contents very slowly in forward or reverse direction, you can do that by pressing the FF/SF button ( or the FR/SR button ( ) during pause mode. There are total 3 steps for DVD and VCD.
  • Page 41 Operating Instructions 4-11 Selecting Angle Some DVD discs may contain scenes, which have been shot simul- taneously from a number of different angles. If the loaded disc su- pports multiple angles, you can see indicator on the fluorescent display and the TV screen. In the figure shown right, there are total 9 angles.
  • Page 42 Operating Instructions Remained to be defined...

  • Page 43: Disassembly And Reassembly

    5. Disassembly and Reassembly 5-1 Cabinet and PCB 5-1-1 Door Tray Removal 1) Supply Power and open Tray ¶. 2) Disassemble the Door Tray · in direction off arrow “A”. 3) Close Tray ¶ and power off. Note : If Tray ¶ doesn’t open, insert a Screw driver ¹ into the Emergency hole ¸ (as shown in detailed drawing) and then turn it in the direction of arrow “B”.
  • Page 44 Disassembly and Reassembly 5-1-2 Top Cabinet Removal 1) Remove 3 Screws ¶ on the back Top Cabinet. 2) Remove 2 Screws ·, ¸ on the left and right side. 3) Lift up the Top Cabinet in direction of arrow. · 2 Screws ¶...
  • Page 45 Disassembly and Reassembly 5-1-3 PCB Cable Removal 1) Disconnect PCN1 ¶. 2) Disconnect PCN4 ·. 3) Disconnect LCN1 ¸. 4) Disconnect CON2 ¹. 5) Disconnect CON1 º. 6) Disconnect CON6 ». 7) Disconnect LCN7 ○ ¶ PCN1 ¸ LCN1 º CON6 ·...
  • Page 46 Disassembly and Reassembly 5-1-4 PCB and Front Ass’y Removal 1) Remove 2 Screws ¶ on the back of the Cabinet. 2) Remove 8 Screws · and disassemble the Main PCB ¹ and SMPS PCB º. 3) Remove 5 Screws ¸ and disassemble the Front Ass’y ». ·...
  • Page 47 Disassembly and Reassembly 5-1-5 Loader Removal 1) Remove 4 Screws ¶ and disassemble the Loader ·. ¶ 4 Screws · Loader Fig 5-5 Loader Removal...
  • Page 48 Disassembly and Reassembly 5-1-6 Front PCB Removal 1) Remove 7 Screws ¶ and disassemble the Front PCB ¸ from the Front Ass’y ·. · Front Ass’y ¸ Front PCB ¶ 7 Screws Fig 5-6 Front PCB Removal...

  • Page 49: Troubleshooting

    6. Troubleshooting Trouble Action No power Insert the AC power plug securely into the power outlet. Make sure that the equipment is connected properly. No picture Make sure that the input setting for the TV is Video (AV). No sound Make sure that the equipment is connected properly.
  • Page 50 Troubleshooting Remained to be defined...

  • Page 51: Electrical Part List

    7. Electrical Part List 1.Main board 5.1 Channel Single SCART Location Spec Pak' Usa' ASS'Y MAIN SMPS MANUAL Hard Disc Cable, 25mm, 40Pin DVD Loader, Mechanism Ass'y Ass'y PCB ASS'Y, MAIN (T/U) 80C52(80C51), 40PIN DIP, MPU U701 PROGRAM MEMORY 512K * 8 U202 PCB ASS'Y, MAIN (M/I) POWER CON', 12PIN, 2.54mm...
  • Page 52 PCB, 2 LAYER CPU&RISC SINGLE CHIP PQFP U201 Video Encoder, NTSC/PAL LQFP U401 16M-SDRAM, 3.3V,400mil,512K*16*2 TSOP(II U204,U203 TTL, HEX INVERTER(FAST) SOIC U206 TTL, HEX INVERTER SOIC U207 EEPROM, 2KBIT,SOIC SOIC U205 Streo DAC,192kHz,24BIt,20Pin SOIC U301 Streo DAC,96kHz,24BIt,16Pin SOIC U303,U302 DUAL OP-AMP SOIC U304,U305,U306,U307,U308,U309.U310 Triple...
  • Page 53 CHIP RES', 1/10W,3.3K ΩJ 1608 R201,R334,R342,R345,R347,R361,R405,R520,R525, R530,R535,R540,R545,R550,R555,R618,R619,R703, R705,R706,R707,R708,R709,R710,R713,R714,R717 CHIP RES', 1/10W,47 ΩJ 1608 R211,R212,R213,R214,R215,R216,R217,R218,R508 CHIP RES', 1/10W,470 ΩJ 1608 R404 CHIP RES', 1/10W,47K ΩJ 1608 R239,R240 CHIP RES', 1/10W,4.7K ΩJ 1608 R101,R102,R204,R241,R242,R243,R510,R511,R515 CHIP RES', 1/10W,5.6K ΩJ 1608 R322,R323,R324,R325,R326,R328,R330,R332,R349, R352,R354,R357 CHIP RES', 1/10W,620 ΩJ 1608 R407,R408,R413,R414,R415,R416,R417,R418 CHIP RES', 1/10W,6.2K ΩJ...
  • Page 54 Location 5.1 Channel Dual SCART NO Spec Pak' Usa' No ASS'Y MAIN SMPS MANUAL Hard Disc Cable, 25mm, 40Pin DVD Loader, Mechanism Ass'y Ass'y PCB ASS'Y, MAIN (T/U) 80C52(80C51), 40PIN DIP, MPU U701 PROGRAM MEMORY 512K * 8 U202 PCB ASS'Y, MAIN (M/I) POWER CON', 12PIN, 2.54mm Strat CON101...
  • Page 55 PCB, 2 LAYER CPU&RISC SINGLE CHIP PQFP U201 Video Encoder, NTSC/PAL LQFP U401 16M-SDRAM, 3.3V,400mil,512K*16*2 TSOP(II) U204,U203 TTL, HEX INVERTER(FAST) SOIC U206 TTL, HEX INVERTER SOIC U207 EEPROM, 2KBIT,SOIC SOIC U205 Streo DAC,192kHz,24BIt,20Pin SOIC U301 Streo DAC,96kHz,24BIt,16Pin SOIC U303,U302 10 DUAL OP-AMP SOIC U304,U305,U306,U307,U308,U309.U310 Triple 2-Channel Multiplexer, TWO SCART...
  • Page 56 36 CHIP RES', 1/10W,47 ΩJ 1608 R211,R212,R213,R214,R215,R216,R217,R218,R508 37 CHIP RES', 1/10W,470 ΩJ 1608 R404 38 CHIP RES', 1/10W,47K ΩJ 1608 R239,R240 39 CHIP RES', 1/10W,4.7K ΩJ 1608 R101,R102,R204,R241,R242,R243,R510,R511,R513,R515 ,R517 40 CHIP RES', 1/10W,5.6K ΩJ 1608 R322,R323,R324,R325,R326,R328,R330,R332,R349, R352,R354,R357 41 CHIP RES', 1/10W,620 ΩJ 1608 R407,R408,R413,R414,R415,R416,R417,R418 42 CHIP RES', 1/10W,6.2K ΩJ...
  • Page 57 2. Headphone board PCB ASS'Y, HEADPHONE (M/I) HEADPHONE WIRE, 9PIN-9PIN(PCB), PCB WIRE CON901 HEADPHONE JACK JAC901 VARIABLE RESISTOR VR901 PCB ASS'Y, HEADPHONE (RAD) ELEC' CAP', 22uF/16V,M CE902,CE901 ELEC' CAP', 47uF/25V,M CE903,CE904 PCB ASS'Y, HEADPHONE (SMD) HEADPHONE PCB 1LAYER CHIP CAP', 25V,470pF,J,COG 1608 C901,C903 CHIP CAP', 25V,100pF,J,COG...
  • Page 58 9 AXI' RES', 1/8W,56K ΩJ AXIAL 10 AXI' RES', 1/6W,10K ΩJ AXIAL R3,R4,R5,R6,R7,R8 11 AXI' RES', 1/6W,330 ΩJ AXIAL 12 AXI' RES', 1/6W,22 ΩJ AXIAL PCB ASS'Y, FRONT BOTTUM (SMD) 1 VFD DRIVER PQFP 4. SMPS PART LIST Spec Pak' Usa' PCB ASS'Y, SMPS (RAD) 1 ELEC' CAP', 220uF/6.3V,M...
  • Page 59 16 RES-RD', 1/4W,2K ΩJ PR10,13,29 17 RES-RD', 1/8W,4.7K ΩJ PR36 18 RES-RD', 1/8W,6.8K ΩJ PR41 19 RES-RD', 1/4W,270K ΩJ PR2,28 Spec Pak' Usa' 20 RES-RN', 1/8W,2K ΩJ F PR23,31,37 21 RES-RN', 1/8W,12K ΩJ F PR45 22 RES-RN', 1/8W,6.8K ΩJ F PR34 23 RES-MOF', 2W,15 ΩJ (MOR) PR44,46...
  • Page 60 Electrical Part List Remained to be defined...

  • Page 61: Block Diagram

    8. Block Diagram MAIN PCB VIDEO ENCODER CONVERTE POWER LOADER (DVS) DECODER MICOM & MAIN CPU HEAD PHONE REMOCON MATRIX FRONT PCB...
  • Page 62 Block Diagram Remained to be defined...

  • Page 63: Pcb Diagrams

    9. PCB Diagrams 9-1 Main PCB (Component Side)
  • Page 64 PCB Diagrams 9-2 Main PCB (Solder Side)
  • Page 65 PCB Diagrams 9-3 Front PCB (Component Side) 9-4 Front PCB (Solder Side)
  • Page 66 PCB Diagrams 9-5 SMPS PCB (Top Side)
  • Page 67 PCB Diagrams 9-6 SMPS PCB (Bottom Side)

  • Page 68: Wiring Diagram

    10. Wiring Diagram...
  • Page 69 Wiring Diagram Remained to be defined...

  • Page 70: Schematic Diagrams

    11. Schematic Diagrams 11-1 Main PCB Schematic Diagram 11-1-1 Main PCB Top Schematic diagram...
  • Page 71 Schematic Diagrams 11-1-2 Main PCB A/V Decoder Block Schematic diagram...
  • Page 72 Schematic Diagrams 11-1-3 Main PCB Submicom Block Schematic diagram...
  • Page 73 Schematic Diagrams 11-1-4 Main PCB Video Block Schematic diagram...
  • Page 74 Schematic Diagrams 11-1-5 Main PCB Audio Block Schematic diagram...
  • Page 75 Schematic Diagrams 11-1-6 Main PCB Out Stage Block Schematic diagram...
  • Page 76 11-2 Front PCB Schematic Diagram 11-2-1 Front PCB Schematic diagram...
  • Page 77 11-3 SMPS PCB Schematic Diagram...
  • Page 78 Schematic Diagrams Remained to be defined...
  • Page 79 TaeYoung Telstar Co.,Ltd May.2001 Printed in Korea...

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