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JVC XV-NA7SL Service Manual

Dvd audio/video player
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Download this manual See also: Instruction Manual
SERVICE MANUAL
DVD AUDIO/VIDEO PLAYER
09
A0036
2002
1
Important Safety Precautions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
2
Disassembly method . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
3
Mechanism . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
4
Adjustment method . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
5
Description of major ICs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
6
Glossary of term and abbreviations(for AV Decoder section) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 48
XV-NA7SL

TABLE OF CONTENTS

COPYRIGHT © 2002 VICTOR COMPANY OF JAPAN, LTD.
XV-NA7SL
No.A0036
2002/10

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Summary of Contents for JVC XV-NA7SL

  • Page 1: Table Of Contents

    XV-NA7SL SERVICE MANUAL DVD AUDIO/VIDEO PLAYER A0036 2002 XV-NA7SL TABLE OF CONTENTS Important Safety Precautions ............. 3 Disassembly method .

  • Page 2: Important Safety Precautions

    XV-NA7SL SECTION 1 Important Safety Precautions 1.1 Safety Precautions (1) This design of this product contains special hardware and voltmeter. many circuits and components specially for safety purposes. Move the resistor connection to each exposed metal part, For continued protection, no changes should be made to the...
  • Page 3 XV-NA7SL 1.5 Preventing static electricity Electrostatic discharge (ESD), which occurs when static electricity stored in the body, fabric, etc. is discharged, can destroy the laser diode in the traverse unit (optical pickup). Take care to prevent this when performing repairs.
  • Page 4 XV-NA7SL 1.7 Important for laser products (1) CLASS 1 LASER PRODUCT (5) CAUTION : If safety switches malfunction, the laser is able (2) DANGER : Invisible laser radiation when open and inter to function. lock failed or defeated. Avoid direct exposure to beam.
  • Page 5 XV-NA7SL 1.8 Precautions for Service 1.8.1 Handling of Traverse Unit and Laser Pickup (1) Do not touch any peripheral element of the pickup or the actuator. (2) The traverse unit and the pickup are precision devices and therefore must not be subjected to strong shock.

  • Page 6: Disassembly Method

    XV-NA7SL SECTION 2 Disassembly method There is a part different from the photograph according to the model and the destination though explains this disassembly method by using version for europe. 2.1 Main body section 2.1.1 How to remove a top cover (See Figure 1) (1) Screw A attaches a top cover to the main part.
  • Page 7 XV-NA7SL 2.1.3 How to remove a rear panel (See Figure 5 and 6) • Please remove a top cover before removing a rear panel. (1) Screw D attaches a rear panel to the main part. Remove the thierteen screws D.
  • Page 8 XV-NA7SL 2.1.5 How to remove a power supply board (See Figure 9 and 5) • Please remove a top cover before removing a power supply board. (1) Extract flat wire from connector JT911, JT912, and JT913 on a power supply board.
  • Page 9 XV-NA7SL 2.1.7 How to remove LCD display & operation switch board (See Figure 11, 12, and 13) • Please remove a top cover and a front panel assembly before removing LCD display & operation switch board. (1) Extract card wire and flat wire from connector CN2, CN3, and CN8 on LCD display board.

  • Page 10: Mechanism

    XV-NA7SL SECTION 3 Mechanism 3.1 Loading assembly section 3.1.1 Removing the clamper assembly (See Fig.1) (1) Remove the four screws A attaching the clamper assembly. (2) Move the clamper in the direction of the arrow to release the two joints a on both sides.
  • Page 11 XV-NA7SL 3.1.3 Removing the traverse mechanism assembly (See Fig.4 and 5) Note: • Prior to performing the following procedure, remove the clamper assembly and the tray. (1) Remove the four screws B attaching the traverse mechanism assembly. ATTENTION: Before reattaching the traverse mechanism assem- bly, pass the card wire extending from the spindle motor board through the notch d of the elevator.
  • Page 12 XV-NA7SL 3.1.5 Removing the motor assembly (See Fig.7 and 8) Note: • Prior to performing the following procedure, remove the clamper assembly, the tray.the traverse mechanism assem- bly and the elevator. (1) Remove the belt from the pulley. (2) Remove the screw C attaching the motor assembly.
  • Page 13 XV-NA7SL 3.1.6 Removing the Idle gear/pully gear/middle gear/slitecam (See Fig.9 to 11) Note: • Prior to performing the followong procedure,remove the clamper assembly,the tray,the traverse mechanism assembly,the elevator and the motor assembly. (1) Press the two tabs h inward and pull out idle gear.
  • Page 14 XV-NA7SL 3.2 Traverse mechanism assembly section 3.2.1 Removing the feed motor assembly (See Fig.12) (1) Unsolder the two soldering j on the spindle motor board. (2) Remove the four screws F attaching the feed motor as- sembly. Fig.12 3.2.2 Removing the feed motor (See Fig.12 to 14)
  • Page 15 XV-NA7SL 3.2.3 Removing the pickup (See Fig.16 and 18) (1) Remove the screw I attaching the T spring (S) and the shaft holder. Remove also the plate. ATTENTION: When reattaching,make sure that the T spring (S) presses the shaft. (2) Pull out the part l of the shaft upward. Move the part m in the direction of the arrow and detach from the spindle base.
  • Page 16 XV-NA7SL 3.2.5 Removing the spindle motor assembly (See Fig.19 to 21) (1) Remove the three screws L attaching the spindle motor on the bottom of the mechanism base. ATTENTION: When reattaching, pass the card wire extending from the spindle motor board through the notch of the spindle base.

  • Page 17: Adjustment Method

    XV-NA7SL SECTION 4 Adjustment method 4.1 Test mode setting method (1) Take out the disc and close the tray. (2) Unplug the power plug. (3) Insert power plug into outlet while pressing both "PLAY" key and "STOP" key of the main body.
  • Page 18 XV-NA7SL 4.4 Display of current value of laser (1) Makes to test mode and initializes. (2) When "CHOICE" key of remote controller is pushed four times, It is displayed on the LCD display, "CHECK". (3) Afterwards, the laser current value can be switched by pushing the key to remote controller without turning on the disc.
  • Page 19 XV-NA7SL 4.6 Upgrading of firmware (1) The power supply is turned on pushing the "POWER" key. (2) The up-grade disc is inserted. (3) When LCD display of the main body changes from "READING" into "UPGRADE", cursor "UP" key ( ) of remote controller is pushed.
  • Page 20 XV-NA7SL 4.8 Flap adjustment of the pick-up guide shaft 4.8.1 Tool list for adjustment Hex wrench for adjustment : Off-the-shelf (1.3mm) Test disc : VT-501 or VT-502 Stand of about 150mm in height : 2 pcs (1) Puts into the state to display the jitter value on the LCD display referring to "3.5 Display of the jitter value".
  • Page 21 XV-NA7SL 4.9 Attention when pick-up is exchanged (1) Flexible wire, pick-up spring, switch actuator, and lead spring are removed from an old pick-up (broken the one). Guide: Flexible wire, pick-up spring and switch actuator,lead spring are removed without each decomposing while assembled.
  • Page 22 Please confirm the operation of the undermentioned item after doing the repair and the upgrade of the firmware. The EEPROM is initialized. Refer to the initialization method. Opening picture check (Power ON) It should be display "JVC" Muting working The noise must not be had to the performance beginning when you push "PLAY" button or at ON/STANDBY.
  • Page 23 XV-NA7SL 4.11Troubleshooting 4.11.1 Servo volume Fig.1...
  • Page 24 XV-NA7SL 4.12Check points for each error 4.12.1 Spindle start error (1) Defective spindle motor • Are there several ohms resistance between each pin of CN201 "5-6","6-7","5-7"? (The power supply is turned off and measured.) • Is the sign wave of about 100mVp-p in the voltage had from each terminal? [ CN201"9"(H1-),"10"(H1+),"11"(H2-),"12"(H2+),"13"(H3-),"14"(H3+) ]...
  • Page 25 XV-NA7SL 4.12.6 Spindle CLV NG • IC101 -- "35"(RF OUT), "30"(ARF-), "31(ARF+). • Does not the input or the output of driver's spindle signal do the grip? • Has the tracking been turned on? • Spindle motor and driver is defective.

  • Page 26: Description Of Major Ics

    XV-NA7SL SECTION 5 Description of major ICs 5.1 74LCX373MTC-X(IC512,IC513) • Pin layout • Pin function Description Symbol Data inputs D0~D7 Latch enable input Output enable input 3-State latch outputs Q0~Q7 • Truth table INPUTS OUTPUTS H = HIGH Voltage level...
  • Page 27 XV-NA7SL 5.2 BA5983FM-X (IC201) : 4CH Driver • Block diagram • Pin function Pin No. Symbol Description Pin No. Symbol Description VO4(-) O Inverted output of CH4 BIAS IN Input for Bias-amplifier VO3(+) O Non inverted output of CH3 OPIN1(+)
  • Page 28 XV-NA7SL 5.3 AN8703FH-V (IC101) : Frontend processor • Pin layout • Pin function Pin No. Symbol Description Pin No. Symbol Description GND3 Connect to GND LPC1 Laser input terminal (DVD) RFDIFO Non connect LPC01 O Laser drive signal output terminal (DVD)
  • Page 29 XV-NA7SL 5.4 BA6664FM-X (IC251) : 3Phase Motor Driver • Pin layout • Block diagram...
  • Page 30 XV-NA7SL • Pin function (BA6664FM-X) Pin No. Symbol Description Non connect Output 3 for spindle motor Non connect Output 2 for spindle motor Non connect Non connect Output 1 for spindle motor Connect to ground Positive input for hall input AMP 1...
  • Page 31 XV-NA7SL 5.5 K4S643232E-TC60(IC505):DRAM • Block diagram • Pin function Symbol Description System clock signal input Chip select input Clock enable A0~A10 Address BA0,1 Bank select address Row address strobe Column address strobe Write enable DQM0~3 Data input/output mask DQ0~31 Data input/output...
  • Page 32 XV-NA7SL 5.6 MN101C57DLR(IC1):System controller • Pin function Pin No. Symbol Description VLC1 LCD Power supply terminal 1 (B5V) VLC2 LCD Power supply terminal 2 (B5V divide voltage) VLC3 LCD Power supply terminal 3 (B5V divide voltage) Non connect P.ON Indicator control signal output for STANDBY...
  • Page 33 XV-NA7SL 5.7 MM1565AF-X (IC951) : 500mA Regulator • Block diagram • Pin function Pin No. Symbol Function Vout Output terminal Non connect Connect to ground Noise decrease terminal Cout Control terminal Substrate (Connect to ground) Input terminal...
  • Page 34 XV-NA7SL 5.8 MN102L62GLF3 (IC401) : Unit CPU • Pin function Pin No. Symbol Function Pin No. Symbol Function SWUPDN Non connect WAIT Micon wait signal input MECHA_H/V Connect to ground O Read enable DISCSET Mechanism state signal input SPMUTE O Spindle muting output to IC251...
  • Page 35 XV-NA7SL 5.9 MN103S26EGA (IC301) : Super optical disc controller • Terminal layout • Block diagram...
  • Page 36 XV-NA7SL • Pin function Pin No. Symbol Description NINT0,1 Interruption of system control 0,1 VDD3 Power supply terminal for I/O(3.3V) Connect to ground NINT2 Interruption of system control 2 WAITDOC Wait control of system control NMPST Reset of system control (Non connect)
  • Page 37 XV-NA7SL Pin No. Symbol Description VDD3 Power supply terminal for I/O (3.3V) OSCI1 Oscillation input 16.9MHz OSCO1 Oscillation output 16.9MHz Connect to ground TSTSG Calibration signal VFOSHORT VFO short output JLINE J-line setting output AVSSD Connect to ground for analog circuit...
  • Page 38 XV-NA7SL Pin No. Symbol Description MONI0 Connect to TP306 MONI1 Connect to TP307 MONI2 Connect to TP308 MONI3 Connect to TP309 NEJECT Eject detection NTRYCTL Tray close detection NDASP ATAPI drive active / slave connect I/O NCS3FX ATAPI host chip select...
  • Page 39 XV-NA7SL 5.10 MN35505-X (IC703,IC411,IC412) : DAC • Terminal layout • Pin function Pin No. Symbol Description Control signal for DAC Digital data input LRCK L and R clock for DAC Bit clock for DAC Control signal for DAC DVDD2 Power supply terminal...
  • Page 40 XV-NA7SL 5.11NDV8611VWA(IC501):AV Decoder • Pin layout • Block diagram • Pin function Pin No. Symbol Description VDDio Power supply terminal 3.3V MD10,11 SDRAM Data bus terminal Power supply terminal 1.8V MD12 SDRAM Data bus terminal VSSio Connect to ground MD13~15...
  • Page 41 XV-NA7SL Pin No. Symbol Description VSSio Connect to ground 32,33 MA12,13 SDRAM Address bus, reserved for terminal compatibility with 64Mb SDRAM Power supply terminal 1.8V SDRAM Primary bank chip select VDDio Power supply terminal 3.3V SDRAM Command bit SDRAM Command bit...
  • Page 42 XV-NA7SL Pin No. Symbol Description SSPOUT0 SSP0 Data out or UART0 data-terminal-ready signal TXD0 UART0 Serial data output to an external serial device RXD0 UART0 Serial data input from external serial device CTS0 UART0 Clear-to-send signal RTS0 UART0 Request-to-send signal...
  • Page 43 XV-NA7SL Pin No. Symbol Description Programmable WAIT/ACK/RDY control VSSio Connect to ground 163~168 AD13~8 Multiplexed address / data bus terminal VDDio Power supply terminal 3.3V PWE1 Byte write enable for FLASH,EEPROM,SRAM or peripherals terminal Connect to ground 172~176 AD7~3 Multiplexed address / data bus terminal...
  • Page 44 XV-NA7SL 5.12 S-93C66AFJ-X (IC451, IC510) : EEPROM • Pin layout • Pin function Pin No. Symbol Description Non connect Power supply terminal Chip select input Serial clock input Serial data input Serial data output Connect to ground Non connect • Block diagram...
  • Page 45 XV-NA7SL 5.13 SST39VF160-7CEK (IC509) : 16M EEPROM • Pin layout • Block diagram • Pin function Symbol Pin name Function A19~A0 Address Inputs To provide memory addresses. During sector erase A19~A11 address lines will select the sector. During block erase A19~A15 address lines will select the block.
  • Page 46 XV-NA7SL 5.14 STR-G6551-F8 (IC901) : Switch regulator • Block diagram • Pin function Pin No. Symbol Description Function Drain terminal MOS FET drain Source terminal MOS FET source Ground terminal Ground Power supply terminal Input of power supply for control circuit O.C.P/F.B...

  • Page 47: Glossary Of Term And Abbreviations(For Av Decoder Section)

    XV-NA7SL SECTION 6 Glossary of term and abbreviations(for AV Decoder section) 3-dimension 1)audio/video 2)audio/visual alternating current ACLK audio serial-data (bit) clock multiplexed address / data bus analog-to-digital converter digital audio input address latch enable ANSI/SMPTE American National Standards Institute / Society of Motion Pictures and Television Engineers...
  • Page 48 XV-NA7SL Readable / Write able Start Active Video SCART Syndicat des Constructeurs d'Appareils Radiorecepteurs et Televiseurs ( connector used in Europe to connect many kinds of audiovisual equipment) SCLK Secondary or slave clock SDRAM Synchronous Dynamic Random Access Memory S/PDIF...
  • Page 49 XV-NA7SL VICTOR COMPANY OF JAPAN, LIMITED PERSONAL & MOBILE NETWORK BUSINESS UNIT. 1644, Shimotsuruma, Yamato, Kanagawa 242-8514, Japan (No.A0036) Printed in Japan 2002/10...