Daewoo DHC-X200 Service Manual
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Daewoo DHC-X200 Service Manual

Daewoo DHC-X200 Service Manual

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Digital Home Cinema System
DHC-X200/X250

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Summary of Contents for Daewoo DHC-X200

  • Page 1 Digital Home Cinema System DHC-X200/X250...

  • Page 2: Table Of Contents

    DIGITAL HOME CINEMA SYSTEM DHC-X200/X250 Contents 1. SAFETY PRECAUTIONS............3/4 12. LEVEL DIAGRAM..............32 2. SPECIFICATIONS..............5 13. SCHEMATIC DIAGRAM..........33/39 -. FRONT SCHEMATIC DIAGRAM. -. DSP SCHEMATIC DIAGRAM. 3. LOCATION OF USERS CONTROLS........6/8 -. MPEG SCHEMATIC DIAGRAM. -. FRONT PANEL. -. MAIN SCHEMATIC DIAGRAM.

  • Page 3: Safety Precautions

    1. Safety Precautions WARNING: TO PREVENT FIRE OR ELECTRIC SHOCK, DO NOT EXPOSE laundry tub, in a wet basement, or near a swimming pool, THIS APPLIANCE TO RAIN OR MOISTURE. and the like. 2. Carts and Stands - The appliance PORTABLE CART CAUTION should be used only with a cart or...
  • Page 4 1. Safety Precautions 13.Outdoor Antenna Grounding - If an outside antenna is 15.Object and Liquid Entry - Care should be taken so that objects do not fall and liquids are not spilled into the enclosure through connected to the receiver be sure the antenna system is openings.

  • Page 5: Specifications

    2. Specifications DHC-X200/X250...

  • Page 6: Location Of Users Controls

    3. Location of Users Controls -. Front Panel 1) DHC-X200 1. POWER ON/OFF switch 16. PHONES jack 2. STANDBY indicator 17. PAUSE ( ) button 3. STANDBY/ON button 18. PLAY ( ) button 4. SKIP/SEARCH DOWN ( ) button 19. STOP ( ) button 5.

  • Page 7: Rear Panel

    3. Location of Users Controls DHC-X200/X250 -. Rear Panel 1. FM ANTENNA connector 10. Power cord 2. AM ANTENNA connectors 11. FRONT SPEAKERS connectors 3. DIGITAL INPUT OPTICAL jack 12. CENTER SPEAKER connectors 4. DIGITAL INPUT COAXIAL jack 13. SURROUND SPEAKERS connectors 5.

  • Page 8: Remote Controller

    3. Location of Users Controls -. Remote Controller DHC-X200/X250 1. STANDBY/ON button 16. SUBTITLE button 32. TITLE button 2. DVD FUNCTION button 17. GAME button 33. PLAY MODE button 3. TUNER FUNCTION button 18. ZOOM button 34. STOP( ) button 4.

  • Page 9: Connecting To Equipment

    4. Connecting to Equipment -. Connecting to TV DHC-X200/X250 If the TV or monitor is equipped with an S video input, make the S video connection in addition to the normal video connection. The S video connection will provide higher quality picture playback.

  • Page 10: Connecting To Audio & Video

    4. Connecting to Equipment -. Connecting to AUDIO & VIDEO DHC-X200/X250 The OPTICAL INPUT connector is for equipment with a digital Remove the protective caps audio output such as a satellite tuner which is to be connected to before making analog VIDEO 1 connectors instead of a VCR.

  • Page 11: Connecting To Speaker

    4. Connecting to Equipment -. Connecting to Speaker DHC-X200/X250 To prevent damage to circuits, never short- Front speakers Center speaker Active subwoofer circuit the positive (+) and negative [USER Optional] (-) speaker wires. Right ch. Left ch. Do not connect the speaker cable to the L...

  • Page 12: Trouble Shooting Guide

    5. Trouble Shooting Guide -. Audio Part DHC-X200/X250 1. Basic Operating 2. Front Micom Circuit Push power on. Push power on. Does DVD appear Is STANDBY LED on? at VFD ? Check POWER SUPPLY circuit. Does Video1/2, Check connection CN906.
  • Page 13 5. Trouble Shooting Guide -. Front Circuit DHC-X200/X250 Push power on. Check if the POWER PART of the FRONT is OK. LED ON Refer to POWER SUPPLY circuit. Check if the REMOCON waveform of STANDBY ON the IC904 PIN(8). Check if the IC905 PIN(13) is OK.
  • Page 14 5. Trouble Shooting Guide -. Audio Part DHC-X200/X250 1. DVD Abnormal AUDIO Abnormal Check if the CN505 is OK. Reconnect it Check if the IC524 PIN(13) waveform is OK. Check if the IC510 PIN(3)(4) waveform is OK. Check if the IC521 PIN(3) waveform is OK.
  • Page 15 5. Trouble Shooting Guide -. Audio Part DHC-X200/X250 OPTICAL OUT Optional in Abnormal Abnormal Check if the IC503 Check if the PIN(5) waveform is OK. IC501 PIN(1) is OK. Refer to DIR circuit IC504 AK4112. Check if the IC501 PIN(3) is OK.
  • Page 16 5. Trouble Shooting Guide -. Audio Part DHC-X200/X250 OPEN/CLOSE Abnormal SOUND Abnormal Check if the RY801 Check if the FRONT is OK. CONTROL is OK. Refer to F_RLY_CONTROL. Check if the PN402 is OK. Refer to FRONT PCB. Check if the IC801...
  • Page 17 5. Trouble Shooting Guide -. Audio Part DHC-X200/X250 DISC READ Abnormal PICK-UP unit control Abnormal Check if the CN706 is Check if the CN706 is OK. Check POWER SUPPLY circuit. Check Power Supply Circuit. Check if the ATAPI Cable is normally.

  • Page 18: Dvd Program Download Method

    6. DVD Program Download Method DHC-X200/X250 INSERT THE UPDATE DISC INTO THE DISC TRAY, THEN THE DVD RECEIVER READS THE DISC AND UPDATE THE FIRMWAFE ITSELF AS FOLLOWINGS. @ INSERT THE UPDATE DISC. STATUS MONITOR SET CONDITION SET THE KEY LOCK...

  • Page 19: Waveforms Of Major Check Point

    7. Waveforms of Major Check Method DHC-X200/X250 TEST POINT : DVD TEST DISC MDVD-W111 TRACK2 COLOR BAR -. Audio Out Signal Waveform -. DAC Output Signal Waveform -. Optical Output Audio Data Signal waveform -. L/R Clock Data Waveform During Normal Play...

  • Page 20: Cr Output Data Waveform In Component Output

    7. Waveforms of Major Check Method DHC-X200/X250 TEST POINT : DVD TEST DISC MDVD-W111 TRACK2 COLOR BAR -. Cr Output Data Waveform in Component Output -. Cb Output Data Waveform in Component Output -. Y Output Data Waveform in Component Output...

  • Page 21: Internal Block Diagram Of Ics

    8. Internal Block Diagram of ICs DHC-X200/X250 AK-4112A...
  • Page 22 8. Internal Block Diagram of ICs DHC-X200/X250 AME1117 BU4052BCF ZR36710a...
  • Page 23 8. Internal Block Diagram of ICs DHC-X200/X250 CS4228A ZR36701...
  • Page 24 8. Internal Block Diagram of ICs DHC-X200/X250 CS434 Reset MUTEC Mute Control Serial Data SDATA AOUTA Analog Output A Serial Clock SCLK Analog Power ft/Right Clock LRCK AGND Analog Ground Master Clock MCLK AOUTB Analog Output B SCL/CCLK SCL/CCLK REF_GND Reference Ground...
  • Page 25 8. Internal Block Diagram of ICs DHC-X200/X250 CXP82852...
  • Page 26 8. Internal Block Diagram of ICs DHC-X200/X250 HY57V161610DTC-8 M62446FP OUT4 DVDD OUT- OUT3 OUT2 PORT DATA volume OUT1 LATCH AVDD DGND volume SWin AGND GNDS SW out SRin SRout volume SLin SLout GNDC Cout volume Rout GNDR Lout AVSS volume...
  • Page 27 8. Internal Block Diagram of ICs DHC-X200/X250 LA7952 NJM2068 NJU7313A...

  • Page 28: Ic Voltage Chart

    9. IC Voltage Chart DHC-X200/X250 1. IC402 ZR36710 PLAY STOP PLAY STOP PLAY STOP PLAY STOP...
  • Page 29 9. IC Voltage Chart DHC-X200/X250 2. IC403 A43L0616AV-7 PLAY STOP PLAY STOP PLAY STOP PLAY STOP 3. IC409 ZR36701 PLAY STOP PLAY STOP PLAY STOP PLAY STOP 4. IC406 A617308S PLAY STOP PLAY STOP PLAY STOP PLAY STOP...

  • Page 30: Block Diagram

    17. Electrical Parts List DHC-X200/X250...

  • Page 31: Wiring Diagram

    17. Electrical Parts List DHC-X200/X250 MODEL MODEL PART-NAME LOCATION PART-CODE PART-DESC REMARKS PART-NAME LOCATION PART-CODE PART-DESC REMARKS DHC-X200 DHC-X250 DHC-X200 DHC-X250 PCB MAIN AS 10000 9CDC060400 DV-112 CONN WAFER CW906 9728808400 VH-2A WAFER HEAT SINK TR 1 9CD4406400 AL.EXTRUSION CONN WAFER...

  • Page 32: Level Diagram

    17. Electrical Parts List DHC-X200/X250 MODEL MODEL PART-NAME LOCATION PART-CODE PART-DESC REMARKS PART-NAME LOCATION PART-CODE PART-DESC REMARKS DHC-X200 DHC-X250 DHC-X200 DHC-X250 WIRE JUMPER JW203 W581GY6095 AWG22 1/0.65 SN 6 AUTO R CARBON FILM R822 RD-AZ681J- 1/6 680 OHM J WIRE JUMPER JW204 W581GY1005 AWG22 1/0.65 SN 10 AUTO...

  • Page 33: Schematic Diagram

    DHC-X200/X250 MODEL MODEL PART-NAME LOCATION PART-CODE PART-DESC REMARKS PART-NAME LOCATION PART-CODE PART-DESC REMARKS DHC-X200 DHC-X250 DHC-X200 DHC-X250 R CARBON FILM R463 RD-AZ333J- 1/6 33K OHM J C ELECTRO C590 CEXF1H100E 50V RM 10MF (5X11) TP PCB REG AS 12000 9CDC0604B0...
  • Page 34 17. Electrical Parts List DHC-X200/X250 MODEL MODEL PART-NAME LOCATION PART-CODE PART-DESC REMARKS PART-NAME LOCATION PART-CODE PART-DESC REMARKS DHC-X200 DHC-X250 DHC-X200 DHC-X250 R CHIP R514 HRFT105JBA 1/10 1M OHM J 1608 R CHIP R620~627 HRFT103JBA 1/10 10K OHM J 1608 R CHIP R515 HRFT104JBA...
  • Page 35 17. Electrical Parts List DHC-X200/X250 MODEL MODEL PART-NAME LOCATION PART-CODE PART-DESC REMARKS PART-NAME LOCATION PART-CODE PART-DESC REMARKS DHC-X200 DHC-X250 DHC-X200 DHC-X250 R CHIP R423 HRFT472JBA 1/10 4.7K OHM J 1608 R CHIP R951 HRFT103JBA 1/10 10K OHM J 1608 R CHIP R424 HRFT330JBA...
  • Page 36 17. Electrical Parts List DHC-X200/X250 MODEL MODEL PART-NAME LOCATION PART-CODE PART-DESC REMARKS PART-NAME LOCATION PART-CODE PART-DESC REMARKS DHC-X200 DHC-X250 DHC-X200 DHC-X250 R CHIP R949~950 HRFT472JBA 1/10 4.7K OHM J 1608 R CHIP R916 HRFT562JBA 1/10 5.6K OHM J 1608 R CHIP R951 HRFT103JBA...
  • Page 37 17. Electrical Parts List DHC-X200/X250 MODEL PART-NAME LOCATION PART-CODE PART-DESC REMARKS DHC-X200 DHC-X250 R CHIP R986 HRFT474JBA 1/10 470K OHM J 1608 VR ROTARY VR901 5V1503727B RK09K1110303 50KB VR ROTARY VR903 5V1503727B RK09K1110303 50KB PCB POWER SW AS 19000 9CDC0595D0...
  • Page 38 17. Electrical Parts List(Option List) TUNER Option List VERSION TUNER STEP(FM/AM) FM BAND AM BAND R987 R988 VOLTAGE FRONT 100KHz / 10KHz 87.5 - 108 530 - 1710 OPEN KOREA, Australia FRONT 100KHz / 9KHz 87.5 - 108 522 - 1620 2.4K KOREA, Australia FRONT...
  • Page 39 17. Electrical Parts List(Option List) Karaoke Option List W KARAOKE W/O KARAOKE REMARK NAME DESCRIPTION NAME DESCRIPTION 16000 9CDC0595A0 PCB MIC AS DV-135 16000 9CDC0593A0 PCB MIC AS DV-115 MAIN CW404 9728808700 WAFER 2.0MM PH-08A MAIN CW404 9728812000 WAFER 2.0MM PH-04A FRONT CN904 9728811300...

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Dhc-x250

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