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P/NO : AFN75512884 NOVEMBER, 2011 CAR CD/MP3/WMA RECEIVER SERVICE MANUAL MODEL: LCS310UR/ LCS310URP5 CAUTION BEFORE SERVICING THE UNIT, READ THE “SAFETY PRECAUTIONS” IN THIS MANUAL. Website http://biz.lgservice.com Internal Use Only MODEL: LCS310UR/ LCS310URP5 SERVICE MANUAL

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  • P/NO : AFN75512884 NOVEMBER, 2011

    CAR CD/MP3/WMARECEIVERSERVICE MANUAL

    MODEL: LCS310UR/ LCS310URP5

    CAUTIONBEFORE SERVICING THE UNIT, READ THE SAFETY PRECAUTIONSIN THIS MANUAL.

    Website http://biz.lgservice.comInternal Use Only

    MO

    DE

    L: L

    CS

    310UR

    / LC

    S310U

    RP

    5S

    ER

    VIC

    E M

    AN

    UA

    L

  • 1-1

    CONTENTS

    SECTION 1 SUMMARYSERVICING PRECAUTIONS .............................................................................................................................1-2ESD PRECAUTIONS ..........................................................................................................................................1-3SPECIFICATIONS ............................................................................................................................................. .1-4LOCATION OF USERS CONTROLS .................................................................................................................1-5HOW TO SETTING THE OPTION CODE ..........................................................................................................1-6FIRMWARE UPGRADE METHOD .....................................................................................................................1-7HOW TO CONNECT AUDIO SET TO POWER SUPPLY ..................................................................................1-8

    SECTION 2 ELECTRICALELECTRICAL TROUBLESHOOTING GUIDE ....................................................................................................2-1

    1. SYSTEM CONTROL ERROR CORRECTION FLOW CHART .................................................................2-12. SOUND ERROR CORRECTION FLOW CHART ......................................................................................2-43. DISPLAY ERROR CORRECTION FLOW CHART ....................................................................................2-74. TUNER ERROR CORRECTION FLOW CHART .......................................................................................2-95. CDP ERROR CORRECTION FLOW CHART .........................................................................................2-106. USB ERROR CORRECTION FLOW CHART (OPTIONAL) ....................................................................2-137. AUX ERROR CORRECTION FLOW CHART ..........................................................................................2-15

    WAVEFORMS ...................................................................................................................................................2-16CIRCUIT VOLTAGE CHART ............................................................................................................................2-18INTERNAL BLOCK DIAGRAM OF ICs ...........................................................................................................2-19

    1. IC601 (BD3702FV) ...................................................................................................................................2-192. IC801 (LV5693P) .....................................................................................................................................2-203. IC804 (TB2946HQ) ..................................................................................................................................2-22

    WIRING DIAGRAM ...........................................................................................................................................2-23BLOCK DIAGRAM ...........................................................................................................................................2-25CIRCUIT DIAGRAMS .......................................................................................................................................2-27

    1. MAIN CIRCUIT DIAGRAM .......................................................................................................................2-272. CDP CIRCUIT DIAGRAM ........................................................................................................................2-293. FRONT CIRCUIT DIAGRAM ...................................................................................................................2-314. CD CIRCUIT DIAGRAM ...........................................................................................................................2-33

    PRINTED CIRCUIT BOARD DIAGRAMS ........................................................................................................2-351. MAIN P.C.BOARD ...................................................................................................................................2-352. FRONT P.C.BOARD ................................................................................................................................2-373. CD P.C.BOARD .......................................................................................................................................2-38

    SECTION 3 EXPLODED VIEWS1. CABINET AND MAIN FRAME SECTION ..................................................................................................3-12. MECHANISM(PICK-UP) SECTION ...........................................................................................................3-3

    SECTION 4 REPLACEMENT PARTS LIST

  • 1-2

    SECTION 1 SUMMARY

    SERVICING PRECAUTIONS1. Always disconnect the power source before:

    1) Removing or reinstalling any component, circuit board, module or any other instrument assembly. 2) Disconnecting or reconnecting any instrument electrical plug or other electrical connection. 3) Connecting a test substitute in parallel with an electrolytic capacitor in the instrument. CAUTION: A wrong part substitution or incorrect polarity installation of electrolytic capacitors may result in an explosion hazard.

    2. Do not defeat any plug/socket B+ voltage interlocks with which instruments covered by this service manual might be equipped.

    3. Do not apply power to this instrument and or any of its electrical assemblies unless all solid-state de-vice heat sinks are correctly installed.

    4. Always connect a test instruments ground lead to the instrument chassis ground before connecting the test instrument positive lead. Always remove the test instrument ground lead last.

    1) The service precautions are indicated or printed on the cabinet, chassis or components. When servicing, follow the printed or indicated service precautions and service materials.

    2) The Components used in the unit have a specifi ed confl ammability and dielectric strength. When replacing any components, use components which have the same ratings. Components marked in the circuit diagram are important for safety or for the characteristics of the unit. Always replace with the exact components.

    3) An insulation tube or tape is sometimes used and some components are raised above the printed writing board for safety. The internal wiring is sometimes clamped to prevent contact with heating components. Install them as they were.

    4) After servicing always check that the removed screws, components and wiring have been installed correctly and that the portion around the service part has not been damaged. Further check the insulation between the blades of attachment plug and accessible conductive parts.

  • 1-3

    ESD PRECAUTIONS

    Electrostatically Sensitive Devices (ESD)Some semiconductor (solid state) devices can be damaged easily by static electricity. Such components com-monly are called electrostatically sensitive devices (ESD). Examples of typical ESD devices are integrated circuits and some fi eld-effect transistors and semiconductor chip components. The following techniques should be used to help reduce the incidence of component damage caused by static electricity.

    1. Immediately before handling any semiconductor component or semiconductor-equipped assembly, drain off any electrostatic charge on your body by touching a know earth ground. Alternatively, obtain and wear a com-mercially available discharging wrist strap device, which should be removed for potential shock reasons prior to applying power to the unit under test.

    2. After removing an electrical assembly equipped with ESD devices, place the assembly on a conductive surface such as aluminum foil, to prevent electrostatic charge buildup or exposure of the assembly.

    3. Use only a grounded-tip soldering iron to solder or unsolder ESD devices.

    4. Use only an anti-static solder removal device. Some solder removal devices not classifi ed as anti-static can generate electrical charges suffi cient to damage ESD devices.

    5. Do not use freon-propelled chemicals These can generate electrical charges suffi cient to damage ESD de-vices.

    6. Do not remove a replacement ESD device from its protective package until immediately before you are ready to install it. (Most replacement ESD devices are packaged with leads electrically shorted together by conductive foam, aluminum foil or comparable conductive materials).

    7. Immediately before removing the protective material from the leads of a replacement ESD device, touch the protective material to the chassis or circuit assembly into which the device will by installed.

    CAUTION : BE SURE NO POWER IS APPLIED TO THE CHASSIS OR CIRCUIT, AND OBSERVE ALL OTHER SAFETY PRECAUTIONS.

    8. Minimize bodily motions when handing unpackaged replacement ESD devices. (Otherwise harmless motion such as the brushing together of your clothes fabric or the lifting of your foot from a carpeted fl oor can generate static electricity suffi cient to damage an ESD device).

    CAUTION. GRAPHIC SYMBOLS

    THE LIGHTNING FLASH WITH ARROWHEAD SYMBOL. WITHIN AN EQUILATERAL TRIANGLE, IS INTENDED TO ALERT THE SERVICE PERSONNEL TO THE PRESENCE OF UNINSULATED DANGEROUS VOLTAGE THAT MAY BE OF SUFFICIENT MAGNITUDE TO CONSTITUTE A RISK OF ELECTRIC SHOCK.

    THE EXCLAMATION POINT WITHIN AN EQUILATERAL TRIANGLE IS INTENED TO ALERT THE SERVICE PERSONNEL TO THE PRESENCE OF IMPORTANT SAFETY INFORMATION IN SERVICE LITERATURE.

  • 1-4

    SPECIFICATIONS

    General Output Power 53 W x 4 CH (Max.) Power Source DC 12 V Speaker impedance 4 Ground System Negative Dimensions (W x H x D) 178 x 50 x 169 mm (without Control Panel) Net Weight 1.37 kg

    TUNER FM Tunning Range 87.5 to 108.0 MHz S/N Ratio 55 dB Distortion 0.7 % Usable Sensitivity 12 dBV

    AM (MW) Tunning Range 520 to 1720 kHz or 522 to 1620 kHz S/N Ratio 50 dB Distortion 1.0 % Usable Sensitivity 28 dBV

    CD Frequency Response 20 Hz to 20 kHz S/N Ratio 80 dB Distortion 0.1 % Channel Separation (1 kHz) 55 dB

    AUX Frequency Response 20 Hz to 20 kHz S/N Ratio 80 dB Distortion 0.1 % Channel Separation (1 kHz) 45 dB Max Input Level (1 kHz) 1.1 V

    USB (Optional) Version USB 1.1 or USB 2.0 Full Speed Bus Power Supply (USB) DC 5 V 1 A

    Line OUT (Optional) Frequency Response 20 Hz to 20 kHz Output Voltage 2 V (Max.)

    Subwoofer (Optional) Frequency Response 20 Hz to 120 Hz Output Voltage 2 V (Max.)

    Design and specifi cations are subject to change without notice.

  • 1-5

    LOCATION OF USERS CONTROLS

    A SRC/ OFF When pressed, selects function sources. When pressed and held, powers unit on or off.

    B Returns to the previous step.

    C Volume knob Adjusts volume level. Confirms the settings. Checks tracks, files or preset stations.

    D BANDSelects a band in Tuner mode. TA (OPTIONAL)Searches stations that have TA/ TP information,when it is pressed and held.

    E Remote Sensor (OPTIONAL)F Display window

    G EQ/ XDSS+Improves sound quality. When pressed, selects the EQ function. When pressed and held, selects the XDSS+

    function.

    H SEjects a disc.

    I Opens the front panel.

    J DISP Press it, you can check the clock time. Press and hold it, you can turn on/off the

    display window and the light of LED buttons.

    K MUTETemporarily stops the sound.

    L Activates setting menu.

    M / Skip/ Search/ Seek/ Tune

    N FUNC In each mode, sets playback items.

    O X Plays and pauses playback.

    P INT Intro scan

    Q RPT Repeats playback

    R SHF Randoms playback

    S Numeric buttons (1 - 6)Selects a numbered preset station in TUNER.

    T AUXIf connected to other portable player, you can enjoy musics from it on the unit.

    U USB port (OPTIONAL)

    FRONT PANEL

    A B C D E F G HI

    JK L M N O P Q R S T U

  • 1-6

    HOW TO SETTING THE OPTION CODE

    1. Option TableOption Codes for Car CD products of 2011 will be defi ned as below

    * OPTION TABLEINDEX AREA RDS OPTION CODE SUFFIX

    1 EU SUPPORT 111

    EDEULL*

    EDZALL*

    EESPLL*

    EHUNLL*

    EMARLL*

    ESWELL*

    ETUREL*

    EZAFLL*

    2 EU SUPPORT 112 ERUSLL*

    3 EU PS_RT_ONLY 121

    EINDLL*

    EIRNJL*

    EISRRL*

    ENGALL*

    ESAUBL*

    YEGYIL*

    4 S.America PS_RT_ONLY 221

    ECHLLL*

    ECOLLL*

    EPANLL*

    PBRALL*

    YMEXCL*

    The option code is comprised of 3 digits and each digit has a range 1~6.In the 2011, Car CD Product has totally four option codes from entire suffi xes.

    2. Operation1. Entering Option Setting Function

    1) Power off on the radio source.2) Push and hold the SRC(PWR) Key for 5 seconds, then It goes to the version display mode.3) Push BAND Key until the LCD displays OPTION(OPTN) XYZ.

    (The XYZ means the Option Code)

    2. How to change the option code1) The Input mode can be set by press the volume knob, the fi rst digit will be blinking until the

    new code is set.2) The number what you want to input could be selected by spinning the volume knob clockwise or

    counterclockwise.And then, if you push the volume knob, the selected number will be changed and the focus is moving to the next.You can also input the new option code of 1~6 by using preset keys if they are on the front panel.

    3) If the new option code is acceptable, SUCCESS XYZ will be displayed on the LCD, and then itll reset soon automatically.

    4) If the new option code is not acceptable, CODE ERR will be displayed on the LCD.To retry to change the option code, push the volume knob again.

  • 1-7

    FIRMWARE UPGRADE METHOD

    [ MAIN AND CD/USB FIRMWARE UPGRADE ]

    1. Confi rmation of version information

    Change the Source of audio set to tuner. (Default: tuner) Turn power off using power key. Press power key for 5 s. (After power on, continue pressing) After 5 s, beep sound rings two times.

    Then version information would show up at display. In order to check version of MAIN and CD/USB system, Press band key.

    2. Upgrade Program reading

    Insert update CD or USB in ACC on state and then is displayed in order.CD : [Reading File Check Download?], USB : [USB Check Download?]

    3. Upgrade start

    In order to start upgrade, Press Preset 1 Key until CHECK CD Display on the LCD.

    4. Upgrade progress display

    Upgrade is in progress now.[ CHECK CD ERASE WRITE I-VRF D-VRF ]

    5. Upgrade Completion

    When Upgrade fi nished, the display shows up DOWN OK. After a while, the audio set is reset automatically.

    Caution!If power is off on the way of upgrading fi rmware, the set cant be recovered.Therefore pay lots of attention for power not to be off.

  • 1-8

    It is suffi cient only to supply power for upgrade.

    Shown from the right fi gure, connect yellow line (Battery) and red line (Ignition) to plus and minus terminal respectively.

    Jack is connected to the audio set via its shapes matched each other.

    We need power supply for operation of audio set (Voltage : 10~16 V Current : Over 20 A) Before connection between set and power supply, adjust voltage level to 16 V typically (It is okay up to 10 V.) Power Supply has a variety of shapes and capacity of voltage and current. At fi rst check these things.

    HOW TO CONNECT AUDIO SET TO POWER SUPPLY

  • 2-1

    SECTION 2 ELECTRICAL

    ELECTRICAL TROUBLESHOOTING GUIDE1. SYSTEM CONTROL ERROR CORRECTION FLOW CHART

    No power?

    Something wrong with the System control?

    OK

    YES

    F301 Inside of JK801

    YES

    NOChecked the Fuse?

    JK801(1, 2, 3)

    YES

    NOChecked the Back up

    VDD and GND?

    IC801(15, 14)

    YES

    NOChecked the Regulator

    Back up VDD?

    IC401(30, 47, 50, 99, 100)

    YES

    NOChecked the Main

    Micom VDD?

    IC401(20, 51, 97, 98)

    YES

    YES

    NOChecked the MainMicom GND?

    X401, X402

    YES

    NOChecked the Main

    Micom X-tal?

    IC401(90), IC402NO

    Checked the MainMicom reset?

    Q802, R459, IC401(4)

    YES

    NOChecked the ACC in?

    IC401(53, 54), CN402(7, 8)

    YES

    NOChecked the FrontPanel Key input?

    1A 1B 1C 1D 1E 1F

    IC401(56)

    YES

    NOChecked the Main Micom

    B+ Detect?

  • 2-2

    Not available to Remocon?

    OK

    YES

    RC902, R961

    YES

    NOChecked the

    Remocon Sense VDD?

    YES

    R962, IC401(81), CN402(11)NO

    Checked theRemocon Sense line?

    1A

    Not available to Volume control?

    OK

    YES

    EV901, IC401(82, 83), CN402(14, 15)

    YES

    NOChecked the

    Encoder volume?

    YES

    IC401(28, 29), IC601(25, 26)NO

    Checked theVolume IC control?

    1B

    Not available to Key control?

    OK

    YES

    SW901 ~ SW917

    YES

    NOChecked theTact switch?

    YES

    IC401(53, 54), CN402(7, 8)NOChecked the

    Key line?

    1C

    [OPTIONAL]

  • 2-3

    Not available to Telephone Mute?

    OK

    YES

    D811, Q805, Q806, IC401(11)

    YES

    NOChecked the

    Tel Mute input?

    YES

    IC401(21, 27), IC804(22)NO

    Checked theMute control?

    1D

    Not available to ANT(Motor Type) control?

    OK

    YES

    D808, IC801(6, 11), IC401(23)NO

    Checked theANT control?

    YES

    1E

    Not available to Remote(Power AMP) control?

    OK

    YES

    JK801(9), IC805, IC401(17)NO

    Checked theRemote control?

    YES

    1F [OPTIONAL]

  • 2-4

    2. SOUND ERROR CORRECTION FLOW CHART

    No sounds of All Functions?

    Something wrong with the Sound?

    OK

    YES

    IC601(24)

    YES

    NOChecked theE-VR VDD?

    IC601(27)

    YES

    NOChecked theE-VR GND?

    IC601(25, 26), IC401(28, 29)

    YES

    NOChecked the

    E-VR control?

    IC601(15), IC401(27)

    YES

    NOChecked the E-VR

    Mute control?

    IC601(1, 2, 3, 4, 5, 6, 7, 9,18, 19, 20, 21, 22, 23)

    YES

    YES

    NOChecked the E-VR

    Signal in/out?

    IC804(1, 2, 8, 13, 18, 24)

    YES

    NOChecked thePower IC GND?

    IC804(6, 20)NOChecked the

    Power IC VDD?

    IC804(4, 22), IC401(18, 21)

    YES

    NOChecked thePower IC control?

    IC804(3, 5, 7, 9, 11, 12, 14,15, 17, 19, 21, 23)

    YES

    NOChecked the Power

    IC Signal in/out?

    JK801(11, 12, 13, 14, 15, 16, 17, 18)

    YES

    NOChecked theMain connector?

    2A 2B 2C

  • 2-5

    Hearing the Pop Noise?

    OK

    YES

    IC401(21, 25, 27), IC601(15), IC804(22),Q601, Q602, Q603, Q604, Q607

    NOChecked theMute contorl?

    YES

    2A

    No Sound External AMP?

    OK

    YES

    IC601(18, 19, 20, 21, 22, 23)NO

    Checked theLine Out signal?

    YES

    Q601, Q602, Q603, Q604, Q607NO

    Checked the Line OutAMP Mute control?

    YES

    JK601NO

    Checked the Line OutAMP signal in/out?

    YES

    2B

    No output Beep sound?

    OK

    YES

    YES

    IC401(80), IC601(14)NO

    Checked theBeep control?

    2C

    [OPTIONAL]

  • 2-6

    CAUTION - Tip for repair

    Before exchange power amp IC(TB2946) for no audio problem, you have to checkbelow list.

    1. Check VCC (pin 20, 6) & GND

    2. Check input pin 11, 12, 14, 15

    3. Check Standby, pin 4 : Follow the below list.

    4. Check Mute function, pin 22 : Follow the below list.

    5. Check Ripple pin 10. : Normally it is high (about 10 V)

    6. Re-soldering all the pin of IC. : Prevent crack of solder line.

    * Keep changed IC, We request that you send it to HQ.

    Stand-by Power Sound VoltageON OFF OFF 0 to 1.5OFF ON ON 3.5 to 6 V

    Mute Sound VoltageON OFF 0 to 1.5OFF ON 3.5 to 6 V

    RL

    RL

    RL

    11

    9

    8

    7

    5

    2

    3

    17

    18

    19

    21

    24

    23

    12

    15

    14

    1 20 6

    RLIN1

    IN2

    IN3

    IN4

    13

    C1

    C1

    C1

    C1

    PRE-GND

    10 25 22

    OUT1 +

    +

    +

    +

    -

    -

    -

    -

    ( )

    PW-GND1

    OUT1 ( )

    OUT2 ( )

    PW-GND2

    OUT2 ( )

    OUT3 ( )

    PW-GND3

    OUT3 ( )

    OUT4 ( )

    PW-GND4

    OUT4 ( )

    TAB VCC1 VCC2

    C 3

    C 4C 2

    : PRE-GND

    : PW-GND

    STBYRIP MUTE

    C 5

    16 C6

    4

    OFF-SETDET

    MUTE

    PLAY

    5 V

    R1

    AC-GND

    Picture 1) Power IC desc.

  • 2-7

    3. DISPLAY ERROR CORRECTION FLOW CHART

    No Display or Some Display is broken?

    Something wrong with the Display?

    3A 3B

    OK

    YES

    IC901(56)

    YES

    NOChecked the LCD

    Driver Vdd?

    YES

    IC901(60)NO

    Checked the LCDDriver Ground?

    YES

    IC901(57), IC401(74)NO

    Checked the LCDDriver RESET?

    YES

    IC901(61)NO

    Checked the LCDDriver OSC?

    YES

    IC401(74, 75, 84, 86),CN402(9, 10, 16, 18),IC901(57, 62, 63, 64)

    NOChecked the LCD

    Driver data interface?

    YES

    IC901(1~55),LCD, Check the short

    NOChecked the LCD to

    LCD Driver line?

  • 2-8

    Not available to LCD Lighting control?

    OK

    YES

    JK801(5), IC801(6)NO

    Checked the Dimmercontrol input?

    YES

    3B

    YES

    IC801(1), Q808, IC401(12)NO

    Checked theWhite LED VDD?

    YES

    LD991 ~ LD992NO

    Checked theWhite LED?

    Not available to illumination with button?

    OK

    YES

    JK801(5), IC801(6)

    YES

    NOChecked the Dimmer

    control input?

    IC801(1), Q807, IC401(13)NO

    Checked theRed LED VDD?

    YES

    LD923 ~ 928, LD931, LD940,LD944, LD945

    NOChecked theRed LED?

    3A

    YES

  • 2-9

    4. TUNER ERROR CORRECTION FLOW CHART

    Not available to Tuner?

    Something wrong with the Tuner system?

    OK

    YES

    IC101(6, 22)NO

    Checked theTuner VDD?

    YES

    IC801(4, 5), IC401(24), D817NO

    Checked the TunerVDD control?

    YES

    IC101(5, 10, 17, 23)NO

    Checked theTuner GND?

    YES

    IC601(15), IC401(27)NO

    Checked the E-VRMute control?

    YES

    IC101(18, 19), IC401(1, 2)NO

    Checked theI2C data?

    YES

    IC101(8, 9) NOChecked the

    Audio signal?

    YES

  • 2-10

    5. CDP ERROR CORRECTION FLOW CHART

    No Loading?

    Something wrong with the CD Player?

    OK

    YES

    IC801(3, 4), IC401(15), D817

    YES

    NOChecked the CD VDD?

    YES

    IC501(4, 5, 7, 9, 12, 44, 49, 51, 74, 77, 81,102, 104, 116, 117)

    NOChecked the CD

    DSP GND?

    YES

    IC502(7, 8, 20)NO

    Checked the MotorDRV VDD?

    YES

    IC401(42), R425NO

    Checked the CDDSP reset?

    YES

    X502(4.2336 MHz)NO

    Checked the CDDSP X-tal?

    YES

    CN506(2)NO

    Checked the Disc inload switch?

    YES

    IC401(58, 59)NO

    Checked the LoadingMotor control?

    YES

    CN506(1)NO

    Checked the 12/8 cmSense switch?

    Fig 1, 2

    Fig 3, 4

    Fig 1, 2

    5A 5B 5C

  • 2-11

    No Reading & "FILE CHECK" Display?

    OK

    YES

    CN506(8)NO

    Checked theLimit switch?

    YES

    IC502(21)NO

    Checked the MotorDRV Mute control?

    YES

    IC401(58, 59)NO

    Checked the MotorLoading control?

    YES

    IC401(60, 70, 71, 72)NO

    Checked the CDDSP control?

    YES

    IC501(111), IC502(15, 16)NO

    Checked theFocus control?

    YES

    YES

    IC501(82)NO

    Checked the RFsignal out check?

    Fig 1, 2

    Fig 3, 4

    YES

    IC501(107), IC502(11, 12)NO

    Checked the Spindlemotor control?

    YES

    IC501(109), IC502(13, 14)NO

    Checked theSLED control?

    YES

    IC501(113), IC502(17, 18)NO

    Checked theTracking control?

    5A

  • 2-12

    Fig 3, 4

    CD no sound?

    OK

    YES

    IC501(46, 47)NO

    Checked theDSP signal out?

    YES

    No ejected the CD?

    OK

    YES

    IC401(53)NO

    Checked theEject key?

    YES

    IC401(58, 59)NO

    Checked the LoadingMotor control?

    YES

    5B

    5C

  • 2-13

    6. USB ERROR CORRECTION FLOW CHART (OPTIONAL)

    Only "NO USB" or "USB CHECK" Display?

    Something wrong with the USB?

    6A 6B

    OK

    YES

    IC801, Q801

    YES

    NOChecked the USB VDD?

    YES

    IC501(4, 5, 7, 9, 12, 44, 49, 51, 74, 77, 81,102, 104, 116, 117)

    NOChecked the USBinterface IC GND?

    YES

    IC401(42), R425NO

    Checked the USBinterface IC reset?

    YES

    X502NO

    Checked the USBinterface IC X-tal?

    YES

    IC501(52, 53)NO

    Checked theD+/D- Port?

    YES

    IC501(52, 53)NO

    Checked the USBindication Port?

  • 2-14

    "FILE CHECK" Display?

    YES

    YES

    IC501(4, 5, 7, 9, 12, 44, 49, 51, 74, 77, 81,102, 104, 116, 117)

    NOChecked the CD

    DSP GND?

    YES

    IC401(42), R425NO

    Checked the USBinterface IC reset?

    YES

    X502NO

    Checked theDSP X-tal?

    IC401(60, 70, 71, 72)NO

    Checked the DSP control?

    YES

    6A

    USB no sound?

    OK

    YES

    IC501(52, 53)NO

    Checked the CDDSP signal out?

    YES

    6B

    OK

  • 2-15

    7. AUX ERROR CORRECTION FLOW CHART

    AUX no sound?

    OK

    Something wrong with the AUX?

    YES

    JK903, IC601(7, 9), CN971(19, 20, 21),CN402(4, 5, 6)

    NOChecked the AUX

    Signal input?

    YES

    See the Sound Error correction Process.NOChecked the

    E-VR & Power AMP?

    YES

  • 2-16

    WAVEFORMS

    1. MAIN PART

    1) MICOM(IC401) DISPLAY(CN402)IC401:[PIN86]IC401:[PIN84]IC401:[PIN75]IC401:[PIN74]

    2) MICOM(IC401) TUNER IC(IC101)IC401:[PIN2]IC401:[PIN1]

    3) MICOM(IC401) VOLUME IC(IC601)IC401:[PIN29]IC401:[PIN28]

  • 2-17

    Fig.1) SWITCHING CONDITION FOR LOADING

    CN506:[PIN2]CN506:[PIN1]CN506:[PIN8]CN506:[PIN11]LOADING S/W

    12/8 S/W

    CHUCKING S/W

    LIMIT S/W

    Fig.2) SWITCHING CONDITION FOR UNLOADING

    CN506:[PIN2]CN506:[PIN1]CN506:[PIN8]CN506:[PIN11]LOADING S/W

    12/8 S/W

    CHUCKING S/W

    LIMIT S/W

    Fig.3) MOTOR CONTROL SIGNAL FOR LOADING

    IC401:[PIN59]IC401:[PIN58]CN506:[PIN10]CN506:[PIN9]

    LO+

    LO-

    REW

    FEW

    LO+

    LO-

    REW

    FEW

    Fig.4) MOTOR CONTROL SIGNAL FOR UNLOADING

    IC401:[PIN59]IC401:[PIN58]CN506:[PIN10]CN506:[PIN9]

    2. CDP PART

  • 2-18

    CIRCUIT VOLTAGE CHART

    IC101

    PIN PIN NAME VOLTAGE

    AM Mode FM Mode

    1 AMRFIN 2.9 -

    2 AMRFDEC 4.2 -

    3 FMIN2 - 3.1

    4 FMIN1 - 3.1

    5 GNDRF GND GND

    6 VCC2 8.3 8.3

    7 AMRFAGC 1.8 -

    8 LOUT 3.8 3.8

    9 ROUT 3.8 3.8

    10 GNDAUD GND GND

    11 AMIFAGC2 - -

    12 MPXIN 3.7 3.7

    13 MPXOUT 4 4

    14 RSSI 1.2 0.8

    15 XTAL2 6 6

    16 XTAL1 6 6

    17 GNDD GND GND

    18 SCL 4.7 4.7

    19 SDA 3.9 3.9

    20 VREF 4 4

    21 VREGSUP 7.1 7.1

    22 VCC1 8.3 8.3

    23 GND GND GND

    24 VCODEC 5.7 5.7

    25 PLL - -

    26 PLLREF 2.25 2.25

    27 TEST - -

    28 AMSELIN1 1.55 -

    29 AMSELIN2 1.55 -

    30 AMIFAGC1 3 -

    31 AMSELOUT1 6.8 -

    32 AMSELOUT2 6.8 -

    IC804

    PIN PIN NAME VOLTAGE

    1 TAB 0

    2 PWR_GND 0

    3 OUT 7.2

    4 STBY 5

    5 OUT 7.2

    6 VCC 14.3

    7 OUT 7.2

    8 PWR_GND 0

    9 OUT 7.2

    10 RIPPLE 8.4

    11 IN 6.9

    12 IN 6.9

    13 PRE_GND 0

    14 IN 6.9

    15 IN 6.9

    16 AC_GND 6.9

    17 OUT 7.2

    18 PWR_GND 0

    19 OUT 7.2

    20 VCC 14.3

    21 OUT 7.2

    22 MUTE 5

    23 OUT 7.2

    24 PWR_GND 0

    25 OFFSET 6.4

    IC601

    PIN PIN NAME VOLTAGE

    1 TUNER_R 4.2

    2 TUNER_L 4.2

    3 N.C -

    4 N.C -

    5 CD_R 4.2

    6 CD_L 4.2

    7 AUX_R 4.2

    8 DN 4.2

    9 AUX_L 4.2

    10 N.C 4.2

    11 N.C 4.2

    12 N.C 4.2

    13 N.C 4.2

    14 BEEP 4.2

    15 MUTE 5

    16 LRST -

    17 LDOUT -

    18 OUT_SL 4.2

    19 OUT_SR 4.2

    20 OUT_RL 4.2

    21 OUT_RR 4.2

    22 OUT_FL 4.2

    23 OUT_FR 4.2

    24 VCC 8.4

    25 SCL 4.9

    26 SDA 4.9

    27 GND 0

    28 FIL 4.2

  • 2-19

    INTERNAL BLOCK DIAGRAM OF ICs

    1. IC601 (BD3702FV)1-1. BLOCK DIAGRAM

    1-2. PIN DESCRIPTION

    Terminal Terminal Description No. Name

    1 A1 A input terminal of 1ch 2 A2 A input terminal of 2ch 3 B1 B input terminal of 1ch 4 B2 B input terminal of 2ch 5 C1 C input terminal of 1ch 6 C2 C input terminal of 2ch 7 DP1 D positive input terminal of 1ch 8 DN D negative input terminal 9 DP2 D positive input terminal of 2ch 10 EP1 E positive input terminal of 1ch 11 EN1 E negative input terminal of 1ch 12 EN2 E negative input terminal of 2ch 13 EP2 E positive input terminal of 2ch 14 MIN Mixing input terminal

    Terminal Terminal Description No. Name

    15 MUTE External compulsory mute terminal 16 LRST Level meter reset terminal 17 LOUT Output terminal for Level meter 18 OUTS2 Subwoofer output terminal of 2ch 19 OUTS1 Subwoofer output terminal of 1ch 20 OUTR2 Rear output terminal of 2ch 21 OUTR1 Rear output terminal of 1ch 22 OUTF2 Front output terminal of 2ch 23 OUTF1 Front output terminal of 1ch 24 VCC Power supply terminal 25 SCL I2C Communication clock terminal 26 SDA I2C Communication data terminal 27 GND GND terminal 28 FIL VCC/2 terminal

  • 2-20

    2. IC801 (LV5693P)2-1. BLOCK DIAGRAM

    +-

    EXTout

    +-

    +-

    1000 mA

    Thermal

    Shut Down

    OUTPUT

    Control

    300 mA

    300 mA

    VCC

    GND

    Startup

    Vref

    OverVoltage

    Protection

    CTRL1

    CTRL2

    CTRL3

    AMP_HS-SW(VCC-1 V)

    500 mA

    500 mA

    500 mA

    Ilim

    +-

    +-

    +-

    1300 mA

    VCC1 VCC

    ILM output (8.4 V)

    AUDIO output (8.4 V)

    RecommendationFET:2SJ650USB output (5 V)

    CD output (8 V)

    VDD output (5.7 V)

    DSP output (3.3)

    VCC

  • 2-21

    2-2. PIN DESCRIPTION

    Pin No. Pin name Description

    1 ILM

    ILM output pin

    ON when CTRL2 = M1, H

    8.4 V/ 0.5 A

    2 GND GND pin

    3 CD

    CD output pin

    ON when CTRL1 = H

    8.0 V/ 1.3 A

    4 CTRL1CTRL1 input pin

    Three value input

    5 AUDIO

    AUDIO output pin

    ON when CTRL1 = M, H

    8.4 V/ 0.5 A

    6 CTRL2CTRL2 input pin

    Four-value input

    7 DSP

    DSP output pin

    ON when CTRL1 = M, H

    3.3 V/ 0.3 A

    8 CTRL3CTRL3 input pin

    Two-value input

    9 FBUSB-FB pin

    1.26 V

    10 USBGTPch-FET gate connect pin

    12.0 V

    11 EXT

    EXT output pin ON

    when CTRL2 = M2, H

    VCC-0.5 V/ 500 mA

    12 RSNSUSB current detection resistance connection pin

    14.3 V

    13 VDDVDD output pin

    5.7 V/ 0.3 A

    14 VCC1 VDD power supply pin

    15 VCC Power supply pin

  • 2-22

    3. IC804 (TB2946HQ)3-1. BLOCK DIAGRAM

    5 V

    110 6 20VCC1VCC2TABRipple

    C2 B

    C3

    C5

    9Out1 (+)11

    C1

    8

    7

    PW-GND1

    Out1 (-)

    IN1

    5Out2 (+)12

    C1

    2

    3

    PW-GND2

    Out2 (-)

    IN2

    17Out3 (+)15

    18

    19

    PW-GND3

    Out3 (-)

    IN3

    21Out4 (+)14

    C1

    24

    23

    PW-GND4

    Out4 (-)

    IN4

    13

    16

    C1

    C6

    4 Stby

    25

    22 Mute

    C4

    R1Play

    Mute

    RL

    RL

    RL

    RL

    Pre-GND

    AC-GND

    Offset/short

  • 2-242-23

    WIRING DIAGRAM

    B+, ACC,Phone Mute

    ANT LINEOUT4CH POWER17PIN

    CONNECTOR11PIN

    CONNECTOR

    Phone MuteDimmer, Speaker out, Power Antenna PickUp MotorExternal AMP

    (Option) HARNESSSK101108KJ106KJ CN519 CN506

    30PINCONNECTOR

    30PINCONNECTOR

    24PINCONNECTORMAIN BOARD

    CN403

    CN402

    CN502

    24PIN AUXCONNECTOR

    FRONT BOARD

    1LINE LCDJack

    USBConnector

    CN971 JK903

    (Option)CN902

  • BLOCK DIAGRAM

    2-262-25

    MAINAntenna

    TunerTEF6606T

    FR/FLRR/RL

    Power AMPTB2946HQ

    VOLUME ICAux-in BD3702FV

    LINEOUT(Option)(From Front)

    MCUUPD78F1164

    CD DSPTAMUL

    S5L8035X01SDRAM

    EM636165TS(with USB)

    Reset IC(SJ73L33S)

    16MBIT

    Option

    FRONT

    Option(From Front)

    Detachable Connector

    LCDUSB CNT Remote LCD Driver(1LINE)(Option) (Option) IC

    AUX CNT Controller

    Detachable Connector

  • CIRCUIT DIAGRAMS1. MAIN CIRCUIT DIAGRAM

    2-27 2-28

    A

    1

    2

    3

    4

    5

    6

    7

    8

    9

    10

    11

    12

    B C D E F G H I J K L M N O P Q R S T

    MAINEBY61569901_1_1(#1)

    2011. 10. 21

  • 2-29 2-30

    2. CDP CIRCUIT DIAGRAM

    A

    1

    2

    3

    4

    5

    6

    7

    8

    9

    10

    11

    12

    B C D E F G H I J K L M N O P Q R S T

    CDPEBY61569901_1_1(#2)

    2011. 10. 21

  • 3. FRONT CIRCUIT DIAGRAM

    A

    1

    2

    3

    4

    5

    6

    7

    8

    9

    10

    11

    12

    B C D E F G H I J K L M N O P Q R S T

    FRONTEBY61648301_1_1

    LCS316/315/1152011. 10. 26

    2-31 2-32

  • 4. CD CIRCUIT DIAGRAM

    A

    1

    2

    3

    4

    5

    6

    7

    8

    9

    10

    11

    12

    B C D E F G H I J K L M N O P Q R S T

    CDEBY61628501_1_1

    2011. 10. 21

    2-33 2-34

  • PRINTED CIRCUIT BOARD DIAGRAMS1. MAIN P.C.BOARD

    2-35 2-36

    (TOP VIEW) (BOTTOM VIEW)

  • 2. FRONT P.C.BOARD

    2-37 2-38

    (TOP VIEW)

    (BOTTOM VIEW)

    3. CD P.C.BOARD

  • 3-1 3-2

    SECTION 3 EXPLODED VIEWS1. CABINET AND MAIN FRAME SECTION

    A26

    451

    451

    298

    451

    297

    292

    294

    MAIN

    293

    451

    456

    456

    CD

    A41

    290A46

    291

    450

    451

    451

    258

    255

    257

    254256

    252253

    450

    250A42

    251 454

    FRONT

    A43A45

    A50

    274

    279281

    282

    LCD901

    280

    284285

    283

    453

    276

    Accessory

    Loc.No.

    Loc.No.

    Loc.No.801 818

    835 Loc.No. 850

  • 3-3 3-4

    2. MECHANISM(PICK-UP) SECTION

    2

    1

    A26

    A03

    #EV##EV#