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S/N No. :
9CD8303000
Service Manual
DVD Micro System
Mini Component System
()
Model: RD-400 Series
series only
DAEWOO DAT CO., LTD.
FEB. 2004
JAN. 2005
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DVD MICRO SYSTEM () RD-400 Series Contents 1. SAFETY PRECAUTIONS......................................................1/2 2. SPECIFICATIONS....................................................................3 8. INTERNAL BLOCK DIAGRAM OF ICs..........................24/28 9. BLOCK DIAGRAM...............................................................29 3. LOCATION OF USERS CONTROLS....................................4/6 FRONT PANEL 10. WIRING DIAGRAM..............................................
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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 RISK OF ELECTRIC SHOCKS stand that is recommended by th DO NOT OPEN manufacturer. 3. An appliance and cart combination should be moved with care. Quick CAUTION :TO REDUCE THE RISK IF ELECTRIC SHOCK, DO NOT REMOVE CO
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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. grounded so as to provide some protection against voltage 16.Damage Requiring Service - The appliance should be surges and built-up static charges. Article 810 of the National serviced by qualified service personnel
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2. Specifications 3
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3. Location of Users Controls Front Panel 1 2 16 3 15 4 5 14 6 7 8 9 10 11 12 13 1. Remote Control Sensor () 9. PREV button 2. Display () 10. NEXT button 3. DISC TRAY 11. USB jack(Option) 4. STANDBY/ON button 12. Microphone jack 5. STANDBY/ON LED lamp 13. Mic. VOLUME Control 6. PHONES jack 14. FUNCTION button () () 7. PLAY button 15. OPEN/CLOSE button () 16. MASTER VOLUME Control 8. STOP button 4
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3. Location of Users Controls Rear Panel 1. COMPONENT VIDEO OUTPUT Y/Pb/Pr jacks (Optional) 2. Power cord 3. COAXIAL OUTPUT jack 9 4. AUDIO INPUT(R/L) jacks 5. VIDEO INPUT jacks 6. VIDEO OUTPUT jacks 1 10 7. SUBWOOFER OUTPUT 11 connectors : For Active subwoofer 2 speaker(User option) 8. S-VIDEO MONITOR OUT jack 9. FRONT SPEAKER connectors 10. AM(MW) ANTENNA connector 11. FM ANTENNA connector 12 12. SCART jack 3 4 5 6 7 8 Display 3 5 7 9 10 12 14 15 17 20 1 2 4 6 8 11 13 16 18 19 21 22 23 24 1. D
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3. Location of Users Controls Remote Controller 1. STANDBY/ON button 2. OPEN/CLOSE button 3. MUTE button 1 4. INPUT SELECTOR: DVD button/ 2 3 TV SYSTEM(PAL/NTSC: DVD only) button 5 5. INPUT SELECTOR: VIDEO button 6 4 6. INPUT SELECTOR: TUNER button 8 7 7. FAST REVERSE(FR) ( ) button 10 9 8. FAST FORWARD(FF) ( ) button 9. SKIP PREV ( ) button 11 10. SKIP NEXT ( ) button 12 11. Direction ( ) buttons ENTER 11 11 12. Enter button 11 13 14 13. PLAY ( ) button 15 14. VOLUME( ) buttons 16 14 15. SETUP
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To video output To audio output To video output To S video input 4. Connecting to Equipment Connecting to TV 21-Pin SCART Cable(not included) to 21-pin SCART input terminal on TV SCART Specification : Composite and Component Video output(DVD, Video)Audio L/R Output(DVD only) for EU version: optional 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. Co
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4. Connecting to Equipment Connecting to Speaker Before connecting This machine is designed to reproduce optimum sound quality when speakers with the specified impedance below are connected. Please check the following information and choose speakers with appropriate impedance for the connections. Front speakers(L/R) : 6 ohms min. per speaker To prevent damage to circuits, never short-circuit the positive (+) and negative (-) speaker wires. Do not connect the speaker cable to the L and R connecto
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5. Firmware Upgrade Preparing the Firmware Upgrade 1. Write a disc to update file by PC Writing Program. 2. A size of dummy folder is more than 10M bite. (ex : font_dw, attached picture) 3. Put firmware file in a disc. Basic Model : A400L_8.ROM DivX Model : A400L_16.ROM Activating the Firmware Upgrade 1. Open the door of DVD receiver. 2. Insert the update disc into the disc tray. 3. Close the door, then DVD receiver reads the disc, and update the firmware itself. DISC LOADING Starting Update
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5. Firmware Upgrade Read the disc. READING OK 1. Automatically open the door, after read from disc. FLASH 2. Take a disc out of a tray Checksum check & Update new firmware. CHECKSUM OK ERASE/WRITE Caution While updating, if the door opened or closed by touch, or power button is pressed, the Flash Memory will be damaged. Completed Update. 1. Automatically power off (about 15 sec),after complete update. 2. Press POWER button, the System is working. DONE Check the Update Version. 1. Open the door
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6. Trouble Shooting Guide Audio Part 1. BASIC OPERATING START No Is Standby LED on? Check Power Supply Circuit. Yes Check Connection CN901, CN951. Turn Power on. No Is Power on? Check DVD Processor Circuit. Yes IC501 Block. Does Initial No read work? Check DVD Mechanism. Check RF Circuit IC301. Yes No Does It Play? Check DVD Region. Yes Check RF Circuit IC301. No Does It Output Audio? Check Audio Section. Yes OK 11
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6. Trouble Shooting Guide Front Circuit 1. INITIAL OPERATING START No Is Standby LED on? No Yes Is Power on? Check Connection CN901/CN951. Yes Check Power Supply. Check OSC No waveform of XC501. Check DVD Power Supply Yes No Check I2C Line of IC504. Check Devices connected Yes I2C Line. Check interface No of VFD Driver Check VFD Data Interface. VFD_DATA/CLK. Yes Replace Front PCB Ass'y. No Check interface of SDRAM Check CLK of SDRAM. Yes Replace Flash Memory. No Is Power on? Yes Initial O
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6. Trouble Shooting Guide Audio Part 3. AUDIO Abnormal Audio Abnormal of DVD Function Check if the I2S No Output of IC501 is ok? Replace IC501. Yes No Check if theI2S Input of IC861 is ok? Check Chip Resistor Yes HA861 Check if the No Output of IC861 is ok? Check if No Yes suppled power is ok? Video Output Check Regulator Circuit. 1 Funtion Yes IC904. Digital Audio 3 Input Funtion Check if No the Output of IC841 is ok? Check Regulator Circuit Yes IC902 Check if No the Output of IC871 is
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6. Trouble Shooting Guide Audio Part 3. AUDIO Abnormal Audio Abnormal of Tuner /Video Input Function Check if the No Audio output of IC401 is ok? Check if the No Yes Audio Input of IIC401 is ok? Check Audio In Line of J481 Yes Check if the No Audio output of IC421 is ok? Check Regulator Circuit Yes IC902, 903 1 4. AUDIO LINE OUTPUT Abnormal Audio Abnormal of H/P Output Check if the No Output of IC811 is ok? Check Regulator Circuit Yes IC902, 903 Check if the No Output of J701 is ok? Yes OK C
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6. Trouble Shooting Guide Audio Part 5. AUDIO CONTROL Abnormal Audio Abnormal of Volume Control Check if the No data of IC501 is ok? Check Input No Data of Volume is ok? Yes Yes Replace IC501 Check Encoder SW. VR701 Check if the No I2C Waveform of IC841 is ok? Yes OK Check between IC501 to IC841 5. AUDIO CONTROL Abnormal Audio Abnormal of Remote Control Check if the No data of IC501 is ok? Check Input No data of RMC is ok? Yes Yes Replace IC501 OK Check Remote Receiver RM701 15
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6. Trouble Shooting Guide Audio Part 6. VIDEO OUTPUT Abnormal VIDEO Abnormal of Component Check if the No Output of IC501 is ok? No Check Crystal is ok? Replace Cystal, XC501. Yes No Check Setup is ok? Setting for RGB Mode. Yes Yes Replace IC501 Check the No output of Jack is ok? Check Filter Circuit. Yes OK 16
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6. Trouble Shooting Guide Audio Part 6. VIDEO OUTPUT Abnormal VIDEO Abnormal of S-VIDEO Check if the No Output of IC501 is ok? No Check Crystal is ok? Replace Crystal, XC501. No Check Setup is ok? Setting for S-VIDEO Mode. Yes Replace IC501 Yes Check the No output of Jack is ok? Check Filter Circuit. Yes OK 17
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6. Trouble Shooting Guide Audio Part 6. VIDEO OUTPUT Abnormal VIDEO Abnormal of Composite Check if the No Output of IC501 is ok? No Check Crystal is ok? Replace Crystal, XC501. Yes Replace IC501 Yes Check the No output of IC481 is ok? Check the No control of Select is ok? Check Power Supply Circuit. Check Control Line between IC510 : Pin12, 15 Yes Replace IC481 Yes Check the No output of Jack is ok? Check Filter Circuit. Yes OK 18
