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JVC XV-N350B Service Manual

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DVD-VIDEO PLAYER
MODELS : XV-N350B/XV-N352S
P/NO : AFN31629394
MARCH, 2007

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  Summary of Contents for JVC XV-N350B

  • Page 1 DVD-VIDEO PLAYER MODELS : XV-N350B/XV-N352S P/NO : AFN31629394 MARCH, 2007...
  • Page 2 CONTENTS SECTION 1..SUMMARY SECTION 2..CABINET & MAIN CHASSIS SECTION 3..ELECTRICAL SECTION 4..MECHANISM (DP-11) SECTION 5..REPLACEMENT PARTS LIST...
  • Page 3: Table Of Contents

    SECTION 1 SUMMARY CONTENTS PRODUCT SAFETY SERVICING GUIDELINES FOR DVD PRODUCTS ........1-3 SERVICING PRECAUTIONS ........................1-4 • GENERAL SERVICING PRECAUTIONS • INSULATION CHECKING PRODEDURE • ELECTROSTATICALLY SENSITIVE (ES) DEVICES SERVICE INFORMATION FOR EEPROM ...................1-5 SPECIFICATIONS ............................1-6...
  • Page 4: Product Safety Servicing Guidelines For Dvd Products

    When servicing this product, under no circumstances should the original design be modified or altered without permission from JVC. All components should be replaced only with types identical to those in the original circuit and their physical location, wiring and lead dress must conform to original layout upon completion of repairs.
  • Page 5: Servicing Precautions

    SERVICING PRECAUTIONS CAUTION: Before servicing the DVD covered by this service Electrostatically Sensitive (ES) Devices data and its supplements and addends, read and follow the Some semiconductor (solid state) devices can be damaged SAFETY PRECAUTIONS. NOTE: if unforeseen circumstances easily by static electricity. Such components commonly are create conflict between the following servicing precautions called Electrostatically Sensitive (ES) Devices.
  • Page 6: Service Information For Eeprom

    SERVICE INFORMATION FOR EEPROM POWER ON DETECT NEW EEPROM DVD LOGO Status (NO Disk status) (OPTION EDIT SCREEN) MODEL: XV-N350B/XV-N352S NAME Remotecontrol OPT 1 Pause key-->1-->4-->7-->2 in order. OPT 2 OPT 3 OPT 4 OPT 5 OPT 6 Press number 0~8, Press charater...
  • Page 7: Specifications

    SPECIFICATIONS • GENERAL Power requirements : AC 200 ~ 240V, 50/60Hz Power consumption : Dimensions (Approx.) : 430 x 35 x 202mm (17 x 1.4 x 7.9inches) (W x H x D) without foot Net Weight (Approx.) : 1.6kg (3.5lbs) Operating temperature : 5°C to 35°C (41°F to 95°F) Operating humidity :...
  • Page 8 SECTION 2 CABINET & MAIN CHASSIS CONTENTS EXPLODED VIEWS .............................2-2 1. CABINET AND MAIN FRAME SECTION ....................2-2 2. DECK MECHANISM SECTION (DP-11) ....................2-3 3. PACKING ACCESSORY SECTION......................2-4...
  • Page 9: Exploded Views

    EXPLODED VIEWS 1. CABINET AND MAIN FRAME SECTION OPTIONAL PART...
  • Page 10: Deck Mechanism Section (Dp-11)

    2. DECK MECHANISM SECTION (DP-11) 015B 015A 012A 012A...
  • Page 11: Packing Accessory Section

    3. PACKING ACCESSORY SECTION 810 CABLE SET ASS’Y 811 PLUG ASS’Y 1WAY(YELLOW) 812 PLUG ASS’Y 2WAY 808 BATTERY 900 REMOCON 801 OWNER’S MANUAL 804 PACKING SHEET 803 PACKING 803 PACKING 802 BOX CARTON...
  • Page 12 SECTION 3 ELECTRICAL CONTENTS ELECTRICAL TROUBLESHOOTING GUIDE ..................3-2 1. POWER CHECK FLOW ..........................3-2 2. SYSTEM OPERATION FLOW.........................3-3 3. SYSTEM TEST FLOW..........................3-4 DETAILS AND WAVEFORMS ON SYSTEM TEST AND DEBUGGING .........3-10 1. SYSTEM 27MHZ CLOCK, RESET, FLASH R/W SIGNAL ..............3-10 2. SDRAM CLOCK.............................3-12 3.
  • Page 13: Electrical Troubleshooting Guide

    ELECTRICAL TROUBLESHOOTING GUIDE 1. POWER CHECK FLOW No 5V No 3.3VA. Is 3.3VA Is 3.3VA section working? section working? Is 3.3V Is 5.6V present at present at emitter No 3.3VA collector of Q126? of Q121? Replace Q126. Check FR101 Replace Q121. Is there a DC voltage at Check D105/D106/D107/ cathode of D105 or D107?
  • Page 14: System Operation Flow

    ELECTRICAL TROUBLESHOOTING GUIDE 2. SYSTEM OPERATION FLOW Power on 1. 8032 initializes SERVO,DSP & RISC registers 2. Write RISC code to SDRAM 3. Reset RISC Show LOGO Tray closed ? Tray close to closed position SLED at inner side ? SLED moves to inner position 1.
  • Page 15: System Test Flow

    ELECTRICAL TROUBLESHOOTING GUIDE 3. SYSTEM TEST FLOW TEST Check the AC Replace power PCBA or AC transformer. Voltage Power PCBA (110V or 220V) Switch on the power PCBA Is the DC voltage outputs OK? Repair or Replace power PCBA (5V, 3.3V, 12V, 5.6V MOTOR) Make sure the main PCBA don't short on VCCs and switch it on.
  • Page 16 ELECTRICAL TROUBLESHOOTING GUIDE RESET or power on. Check connection lines Flash between FLASH & ZR966 memory operates Show LOGO? and the FLASH access time properly? whether is suitable or not. Check connection lines SDRAM between SDRAM & ZR966 works properly? and the SDRAM is damaged.
  • Page 17 ELECTRICAL TROUBLESHOOTING GUIDE Does Motor Check the connection line the SLED move Driver DRVSB Pin to inner side when it is of DRVSB signal. is high? at outter position? Is sled_s Check the related DC Level higher than circuit of Sled_s. 1.4V? Check the amp circuit on SL+ and...
  • Page 18 ELECTRICAL TROUBLESHOOTING GUIDE Check the laser power circuit Laser DVD_LD, on ZR966 and connecting to turns on when reading CD_LD output properly? power transistor. disc? Collector Check the related circuit on voltage of power transistor laser power transistor is OK? Check cable connection between transistor ouput and pick-up head.
  • Page 19 ELECTRICAL TROUBLESHOOTING GUIDE Check connections between Proper signals on Focus on OK? ZR966 and pick-up head. A,B,C,D of ZR966 Check the focus_s connection Check focus_s on ZR966 and motor driver. signal on ZR966 Check the focus control F+ & F- output amp circuit on motor driver.
  • Page 20 ELECTRICAL TROUBLESHOOTING GUIDE Normal Audio Check connection between Audio output when disc DAC received correct ZR966 & Audio DAC. playback? data stream? Check the related Normal Audio circuit of Audio DAC. DAC out? Check Audio filter, amplify, mute circuit. Commu- Normal nications between Check communication...
  • Page 21: Details And Waveforms On System Test And Debugging

    DETAILS AND WAVEFORMS ON SYSTEM TEST AND DEBUGGING 1. SYSTEM 27MHz CLOCK, RESET, FLASH R/W SIGNAL 1) ZR966 main clock is at 27MHz (X601) FIG 1-1 2) ZR966 reset is active high. 3.3VA PWR_CTL RESET FIG 1-2 3-10...
  • Page 22 3) RS232 waveform during procedure (Downloading) FIG 1-3 4) Flash R/W enable signal during download (Downloading) IC602 FIG 1-4 3-11...
  • Page 23: Sdram Clock

    2. SDRAM CLOCK DCLK = 128MHz, Vp-p=2.2, Vmax=2.7V IC603 FIG 2-1 3. TRAY OPEN/CLOSE SIGNAL INSW OUTSW IC201 CLOSE OPEN FIG 3-1 3-12...
  • Page 24: Sled Control Related Signal (No Disc Condition)

    4. SLED CONTROL RELATED SIGNAL (NO DISC CONDITION) SLED_S(1.9V/1.4V/1.1V) DRVSB(3.3V) SLED+(4.2V/2.8V/1.2V) SLED-(4.2V/2.8V/1.5V) FIG 4-1 5. LENS CONTROL RELATED SIGNAL (NO DISC CONDITION) FOCUS_S(1.5V/1.4V/1.3V) FACT+(3.2V/2.7V/2.2V) FACT-(3.2V/2.7V/2.2V) FIG 5-1 3-13...
  • Page 25: Laser Power Control Related Signal (No Disc Condition)

    6. LASER POWER CONTROL RELATED SIGNAL (NO DISC CONDITION) CN201 MDI1(0V/180mV) CD_LD(3.3V//2.3V) DVD_LD(3.3V/2.3V) FIG 6-1 7. SPINDLE CONTROL WAVEFORM (NO DISC CONDITION) SPINDLE_S(1.4V/1.8V) SP-(3.6V/2.4V) SP+(3.6V/4.8V) FIG 7-1 3-14...
  • Page 26: Focus On Waveform

    8. FOCUS ON WAVEFORM FOCUS_S IC201 FIG 8-1 (DVD) FOCUS_S FIG 8-2 (CD) 3-15...
  • Page 27: Racking Control Related Signal (System Checking)

    9. RACKING CONTROL RELATED SIGNAL (SYSTEM CHECKING) TRACK_S Tracking+ Tracking- FIG 9-1 (DVD) P2201 TRACK_S Tracking+ Tracking- FIG 9-2 (CD) 3-16...
  • Page 28: Zr966 Audio Coaxial Output (Spdif)

    10. ZR966 AUDIO COAXIAL OUTPUT (SPDIF) FIG 10-1 11. ZR966 VIDEO OUTPUT WAVEFORM 1) 100% COLOR BAR FIG 11-1 3-17...
  • Page 29: Audio Output From Zr966

    2) COMPOSITE VIDEO SIGNAL FIG 11-2 12. AUDIO OUTPUT FROM ZR966 FIG 12-1 3-18...
  • Page 30: Connector Picture

    CONNECTOR PICTURE 1. ALL CONNECTOR PICTURE 3-19...
  • Page 31: P2201 Connector Picture

    2. P2201 CONNECTOR PICTURE P2201 (MD 23PIN) 3. P2202 CONNECTOR PICTURE P2202 (MD 9PIN) 3-20...
  • Page 32: Pw6101 Connector Picture

    4. PW6101 CONNECTOR PICTURE PW6101 (POWER 10PIN) 5. P6501 CONNECTOR PICTURE P6501 (USB 4PIN) Not used currently 3-21...
  • Page 33: P6602 Connector Picture

    6. P6602 CONNECTOR PICTURE P6602 (DOWN LOAD 4PIN) P6602 (HYPER TEAMINAL 4PIN) 7. P6901 CONNECTOR PICTURE P6901 (TIMER 12PIN) 3-22...
  • Page 34: P7301 Connector Picture

    8. P7301 CONNECTOR PICTURE P7301 (SCART 12PIN) 3-23...
  • Page 35: Block Diagrams

    BLOCK DIAGRAMS 1. OVERALL BLOCK DIAGRAM 3-24...
  • Page 36: Power Supply Block Diagram

    2. POWER SUPPLY BLOCK DIAGRAM 3-25...
  • Page 37: Servo Block Diagram

    3. SERVO BLOCK DIAGRAM 3-26...
  • Page 38: Mpeg & Memory Block Diagram

    4. MPEG & MEMORY BLOCK DIAGRAM 3-27...
  • Page 39: Video Block Diagram

    5. VIDEO BLOCK DIAGRAM 3-28...
  • Page 40: Audio Block Diagram

    6. AUDIO BLOCK DIAGRAM 3-29...
  • Page 41 MEMO 3-30...
  • Page 42: Circuit Diagrams

    BE MODIFIED OR ALTERED WITHOUT PERMISSION CIRCUIT USED. THIS WAY, IMPLEMENTATION OF THE 2. Voltages are DC-measured with a digital voltmeter 1. POWER (SMPS) CIRCUIT DIAGRAM FROM THE JVC. ALL COMPONENTS SHOULD BE LATEST SAFETY PERFORMANCE during Play mode.
  • Page 43: System (Mpeg) Circuit Diagram

    2. SYSTEM (MPEG) CIRCUIT DIAGRAM 3-33 3-34...
  • Page 44: Servo Circuit Diagram

    3. SERVO CIRCUIT DIAGRAM 3-35 3-36...
  • Page 45: Av/Jack Circuit Diagram

    4. AV/JACK CIRCUIT DIAGRAM 3-37 3-38...
  • Page 46: Timer/Key Circuit Diagram

    5. TIMER/KEY CIRCUIT DIAGRAM 3-39 3-40...
  • Page 47: Circuit Voltage Chart

    • CIRCUIT VOLTAGE CHART DC VOLTMETER MEASUREMENT METHOD No Disc Play No Disc Play No Disc Play No Disc Play No Disc Play No Disc Play 3.28 1.51 1.61 0.93 0.0002 0.0005 1.61 2.47 IC201 3.22 2.16 Playback 0.0001 0.001 1.59 1.91 0.0003...
  • Page 48: Printed Circuit Board Diagrams

    PRINTED CIRCUIT BOARD DIAGRAMS 1. MAIN P.C.BOARD (TOP VIEW) (BOTTOM VIEW) 3-43 3-44...
  • Page 49: Key P.c.board

    2. KEY P.C.BOARD (TOP VIEW) (BOTTOM VIEW) 3. TIMER P.C.BOARD (TOP VIEW) (BOTTOM VIEW) 3-45 3-46...
  • Page 50: Smps P.c.board

    4. SMPS P.C.BOARD 5. SCART P.C.BOARD (SCART MODEL ONLY) (TOP VIEW) (BOTTOM VIEW) 3-47 3-48...
  • Page 51 MEMO MEMO 3-49 3-50...
  • Page 52: Section 4.........Mechanism (Dp

    SECTION 4 MECHANISM (DP-11) CONTENTS DECK MECHANISM PARTS LOCATIONS • TOP VIEW............................4-2 • TOP VIEW (WITHOUT TRAY DISC) ...................4-2 • BOTTOM VIEW ...........................4-2 DECK MECHANISM DISASSEMBLY 1. MAIN BASE ..........................4-3 1-1. Clamp Assembly Disc ......................4-3 1-1-1. Plate Clamp ......................4-3 1-1-2. Magnet Clamp ......................4-3 1-1-3.
  • Page 53: Bottom View

    DECK MECHANISM PARTS LOCATION • TOP VIEW (WITHOUT TRAY) Procedure Disass Fig- Parts Fixing Type embly Starting No. Main Base Clamp Assembly Disc 1, 2 Plate Clamp 1, 2, 3 Magnet Clamp 1, 2, 3, 4 Clamp Upper Tray Disc 1, 6 Base Assembly Sled 4 Screws,...
  • Page 54 DECK MECHANISM DISASSEMBLY FIG. 4-1 FIG. 4-2 1. MAIN BASE (FIG. 4-1) 2. TRAY DISC (FIG. 4-2) 1-1. Clamp Assembly Disc 1) Insert and push a Driver in the emergency eject hole(A) at the right side, or put the Driver on the 1) Place the Clamp Assembly Disc as Fig.
  • Page 55 FIG. 4-3 3. BASE ASSEMBLY SLED (FIG. 4-3) 3-3. Gear Rack 1) Release the Scerw (S3) 1) Release 4 Screw (S2). 2) Disconnect the FFC Connector (C1) 4. RUBBER REAR (FIG. 4-3) 3-1. Gear Feed 3-2. Gear Middle...
  • Page 56 FIG. 4-4 5. FRAME ASSEMBLY UP/DOWN (FIG. 4-4) 8. GEAR LOADING (FIG. 4-4) 9. GUIDE UP/DOWN (FIG. 4-4) Note Put the Base Main face down (Bottom Side) 1) Move the Guide Up/Down in direction of 1) Release the screw (S4) arrow(A) as Fig.(A) 2) Unlock the Locking Tab (L3) in direction of arrow 2) Push the Locking Tab(L5) down and then lift up...
  • Page 57 MEMO...
  • Page 58 EXPLODED VIEW 1. DECK MECHANISM EXPLODED VIEW DP-11...
  • Page 59 MEMO MEMO 4-10...

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Xv-n352s