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JVC XV-N40BK Service Manual
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JVC XV-N40BK Service Manual

JVC XV-N40BK Service Manual

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SERVICE MANUAL
2003
03
A0040
XV-N40BK,XV-N44SL
STANDBY/ON
OPEN/
CLOSE
DISPLAY
1
2
3
4
5
6
7
8
9
10
0
+10
TITLE/
RETURN
GROUP
CANCEL
ENTER
PREVIOUS
NEXT
CLEAR
SELECT
SLOW-
SLOW+
3D
PHONIC
REPEAT
VFP
PROGRESSIVE
SCAN
ANGLE
SUB TITLE
AUDIO
ZOOM
DIMMER
1
Important Safety Precautions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-3
2
Disassembly method . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-7
3
Adjustment. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-14
4
Description of major ICs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-23
COPYRIGHT © 2003 VICTOR COMPANY OF JAPAN, LIMITED.
DVD VIDEO PLAYER
V I D E O
TABLE OF CONTENTS
XV-N40BK,XV-N44SL
Area Suffix (XV-N40BK)
J -------------------------- U.S.A.
C --------------------- Canada
Area Suffix (XV-N44SL)
J -------------------------- U.S.A.
C --------------------- Canada
UJ ------------ U.S.A Militaly
No.A0040
2003/03

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Summary of Contents for JVC XV-N40BK

  • Page 1 XV-N40BK,XV-N44SL SERVICE MANUAL DVD VIDEO PLAYER A0040 2003 XV-N40BK,XV-N44SL Area Suffix (XV-N40BK) J -------------------------- U.S.A. C --------------------- Canada Area Suffix (XV-N44SL) J -------------------------- U.S.A. C --------------------- Canada UJ ------------ U.S.A Militaly STANDBY/ON OPEN/ CLOSE DISPLAY TITLE/ RETURN GROUP CANCEL ENTER...
  • Page 2 XV-N40BK,XV-N44SL SPECIFICATION General Readable discs DVD VIDEO, DVD-R (Video format), DVDRW (Video format), +RW (Video format), SVCD, Video CD, Audio CD (CD-DA), MP3 format, JPEG, CD-R/RW (CD-DA, SVCD, Video CD, MP3 format, JPEG) Video format NTSC, 480i (Interlaced scan)/480p (Progressive scan) selectable...

  • Page 3: Important Safety Precautions

    XV-N40BK,XV-N44SL SECTION 1 Important Safety Precautions 1.1 Safety Precautions (1) This design of this product contains special hardware and exposed metal part and a known good earth ground. many circuits and components specially for safety purposes. Measure the AC voltage across the resistor with the AC For continued protection, no changes should be made to the voltmeter.
  • Page 4 XV-N40BK,XV-N44SL 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 5 XV-N40BK,XV-N44SL 1.7 Importance admistering point on the safety J702 S902 S901 C975 C976 EP953 L955 L957 C988 C967 C966 L956 C965 C973 C957 L952 C959 C958 C974 L951 L954 D953 C952 C955 C977 C964 D955 Q953 CN902 L959 R966 C963...
  • Page 6 XV-N40BK,XV-N44SL 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 7: Disassembly Method

    XV-N40BK,XV-N44SL SECTION 2 Disassembly method 2.1 Main body section 2.1.1 Removing the top cover (See Figure 1) (1) Remove the two screws A attaching the top cover on both sides of the main body. (2) Remove the three screws B attaching the top cover on the back of the main body.
  • Page 8 XV-N40BK,XV-N44SL 2.1.3 Removing the mechanism assembly (See Figure 2, Figure 5) • Prior to performing the following procedure, remove the top Mechanism assembly cover. • There is no need to remove the front panel assembly. (1) Insert a kind of screwdriver in a hole located in the right side of mechanism assembly, and push a lever until it can- not be inserted any further.
  • Page 9 XV-N40BK,XV-N44SL 2.1.5 Removing the rear panel (See Figure 7, Figure 8) • Prior to performing the following procedure, remove the top Rear panel cover. (1) Remove the six screws E attaching the rear panel. (2) Disconnect the power cord from connector P901 on the power supply board (3) Remove tie band.
  • Page 10 XV-N40BK,XV-N44SL 2.2 Loading mechanism assembly 2.2.1 Removing the tray (See Figure 1, Figure 2, Figure 3, Figure 4, Figure 5, Figure 6) (1) Push a of the slide cam on the hole in the right side of the Tray loading base by using a driver until it stops. (See Figure 1.) (2) The tray comes out.

  • Page 11: Shaft

    XV-N40BK,XV-N44SL 2.2.2 Removing the traverse mechanism assembly (See Figure 7) Reverse the loading mechanism assembly. Remove the four Loading mechanism screws B attaching the traverse mechanism assembly. Remove assembly the traverse mechanism assembly upward. Traverse mechanism assembly Fig.7 2.2.3 Removing the elevator (See Figure 8 and Figure 9) •...

  • Page 12: No.a0040)1

    XV-N40BK,XV-N44SL 2.2.4 Removing the loading motor (See Figure 10 and Figure 11) • Prior to the following procedure, remove the tray, the traverse Loading base mechanism assembly, and the elevator. Belt (1) Remove the belt from the pulley. Pulley Slide cam Pulley (2) Remove two screws C attaching the loading motor.
  • Page 13 XV-N40BK,XV-N44SL 2.3 Traverse mechanism assembly 2.3.1 Removing the pickup (See Figure 12, Figure 13, and Figure 14) • Prior to the following procedure, remove the traverse mecha- nism assembly. (1) Remove one screw D attaching the plate. (2) Remove the plate and the leaf spring.

  • Page 14: Adjustment

    XV-N40BK,XV-N44SL SECTION 3 Adjustment 3.1 Test mode setting method (1) Unplug the power plug. (2) Insert power plug into outlet while pressing both "PLAY" key and "STOP" key of the main body. (3) The FL display shows " 0", and the main body turns to test mode. " " means the destination, and "0" means parameter adjust- ment status.
  • Page 15 XV-N40BK,XV-N44SL 3.4 All-initialization method Please perform all-initialization according to the following procedures in the following case: • Just after you exchange the pick-up. • Just after you exchange the spindle motor. • Just after you exchange the traverse mechanism base.
  • Page 16 • When the reading accuracy of the signal is bad (There is a block noise in the screen, Screen stops in the outer circumference of a disc, etc.) ATTENTION: Adjustment procedures will be informed of you in JVC Service Bulletin. 4 key (laser of CD) 5 key (laser of DVD)
  • Page 17 XV-N40BK,XV-N44SL 3.9 Upgrading of firmware The latest firmware for upgrading is updated in "Optical disc CSG" page in JS-net. At the time of service, compare the version of the product and the latest version, and upgrade the old version into the latest version.
  • Page 18 XV-N40BK,XV-N44SL 3.10 Attention when pick-up is exchanged Switch actuator (1) Flexible wire, pick-up spring, switch actuator, and lead spring are removed from an old pick-up (broken the one). Lead spring Guide: Flexible wire, pick-up spring and switch actuator,lead spring are removed without each decomposing while as- Pick-up sembled.
  • Page 19 Parameter adjustment status Set the main body at test mode, and check that the FL display shows " 0". 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 20 XV-N40BK,XV-N44SL 3.12Troubleshooting 3.12.1 Servo volume Press OPEN /CLOSE key Is tray Confirmation of tray drive circuit operation and circuit in surrounding correct? Is the traverse moving See "(3) Traverse movement error" along the innermost in "Check points for individual errors"...
  • Page 21 XV-N40BK,XV-N44SL 3.13Check points for each error 3.13.1 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 22 XV-N40BK,XV-N44SL 3.13.6 Spindle CLV NG • IC101 -- "27"(ARF-), "26(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. • Additionally, "IC101 and IC301" and "Mechanism is defective(jitter)", etc. are thought.

  • Page 23: Description Of Major Ics

    XV-N40BK,XV-N44SL SECTION 4 Description of major ICs 4.1 74LCX373APW-X (IC512,IC513) : Octal D-type latch • Pin layout • Truth table INPUTS OUTPUT H = HIGH Voltage level L = LOW Voltage level Z = High impedance (TOP VIEW) X = Immaterial Q0 = Previous Q0 before HIGH to LOW transition of latch enable •...
  • Page 24 XV-N40BK,XV-N44SL 4.2 AK4381VT-X (IC402) : 2ch DAC • Pin layout MCLK DZFL BICK DZFR SDTI LRCK AOUTL+ AOUTL- CCLK AOUTR+ CDTI AOUTR- • Block diagram MCLK De-emphasis Clock Control Divider CCLK Interface DZFL CDTI DZFR AOUTL+ LRCK Audio Modulator Interpolator...
  • Page 25 XV-N40BK,XV-N44SL 4.3 AN8708FHK(IC101):Frontend processor • Pin layout • Pin function Pin No. Symbol Description GND1 Connect to ground LPC1 Laser input terminal (DVD) LPC01 Laser drive output terminal (DVD) LPC2 Laser input terminal (CD) LPC02 Laser drive output terminal (CD)
  • Page 26 XV-N40BK,XV-N44SL 4.4 BA5983FM-X (IC201) : 4-channel driver • Block diagram STAND BY Level Shift Level Shift Level Shift Level Shift STAND BY CH1/2/3 • Pin function Pin No. Symbol Description Pin No. Symbol Description VO4(-) O Inverted output of CH4...
  • Page 27 XV-N40BK,XV-N44SL 4.5 BA6664FM-X (IC251) : Spindle motor driver • Pin layout • Block diagram DRIVER GAIN SWITCH GAIN CONTROL CURRENT SENSE AMP HALL AMP TOROUE SENSE AMP SHORT BRAKE CK Q BRAKE MODE Hall Bias (No.A0040)1-27...
  • Page 28 XV-N40BK,XV-N44SL • 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 29 XV-N40BK,XV-N44SL 4.6 JCE8045(IC501):AV Decoder • Pin layout • Block diagram digital audio Video I/O port audio DAC NTSC Audio MPEG Video Audio output Video output digital audio Video SCART processor decoder processor encoder Serial XBUS serial XBUS port controller peripherals...
  • Page 30 XV-N40BK,XV-N44SL Pin No. Symbol Description 25,26 MA2,1 SDRAM Address bus terminal VDDio Power supply terminal 3.3V SDRAM Address bus terminal MA10 SDRAM Address bus terminal MA11 Non connect VSSio Connect to ground 32,33 MA12,13 SDRAM Address bus, reserved for terminal compatibility with 64Mb SDRAM Power supply terminal 1.8V...
  • Page 31 XV-N40BK,XV-N44SL Pin No. Symbol Description VSSio Connect to ground RXD1 UART1 Serial data input from external serial device, used for IR receiver SSPIN1 I/O SSP1 Data in or 16X clock for USART function in UART1 Connect to ground SSPOUT1 I/O SSP1 Data out or UART1 data-terminal-ready signal...
  • Page 32 XV-N40BK,XV-N44SL Pin No. Symbol Description /HFMON Non connect SBAK Non connect HAGUP Non connect VI02 Non connect VSSio Connect to ground /DRVMUTE Non connect /SPMUTE Non connect Power supply terminal 1.8V 136~139 AD31~28 I/O Multiplexed address / data bus terminal...
  • Page 33 XV-N40BK,XV-N44SL Pin No. Symbol Description VSSio Connect to ground XI09 I/O Programmable general purpose external input/output 206~208 XID10~12 I/O Programmable general purpose external input/output ODCIRQ Interrupt input VDDio Power supply terminal 3.3V ODCIRQ2 Interrupt input Power supply terminal 1.8V DSYNC...
  • Page 34 XV-N40BK,XV-N44SL 4.7 SST39VF160-7DD (IC509) : 16M EEPROM • Pin layout /BYTE /RST • Block diagram 16,777,216Bit EEPROM X-Decoder Cell Array A19~A0 Address Buffer & Latches Y-Decoder Control Logic I/O Buffers & Data Latches DQ15~DQ0 • Pin function Symbol Pin name...
  • Page 35 XV-N40BK,XV-N44SL 4.8 MN103S26EGB-H (IC301) : Super optical disc controller • Terminal layout • Block diagram Host I/F DVD-ROM Analog MPEG I/F Formatter CD-PRE ATAPI High speed IO bus Instruction Servo I/O CGEN memory (core 1 I/O) (40KB) 32 bit CPU core...
  • Page 36 XV-N40BK,XV-N44SL Pin No. Symbol Description System control chip select Writing system control Read signal input from system controller 37~44 CPUDT7~0 I/O System control data CLKOUT1 Non connect MMOD Test mode switch signal NRST System reset MSTPOL Master terminal polarity switch input...
  • Page 37 XV-N40BK,XV-N44SL Pin No. Symbol Description LOUT Non connect AVDD Power supply terminal for analog circuit (3.3V) VCOF JFVCO control voltage TRCRS Input signal for track cross formation CMPIN Non connect LPFOUT Non connect LPFIN Pull-up to VHALF AVSS Connect to ground for analog circuit...
  • Page 38 XV-N40BK,XV-N44SL Pin No. Symbol Description NCS3FX ATAPI host chip select NCS1FX ATAPI host chip select Data sampling clock output I/O ATAPI host address 0 NPDIAG I/O ATAPI slave master diagnosis input I/O ATAPI host address 1 NIOCS16 Non connect INTRQ...
  • Page 39 XV-N40BK,XV-N44SL 4.9 PT6315-S(IC801):FL Display driver and key controller • Pin layout DOUT • Pin function Pin No. Symbol Description Clock input terminal Serial interface strobe terminal K1,K2 Key data input terminal Connect to ground Power supply terminal 7~14 SG1~SG8 FL Display segment control signal output terminal...
  • Page 40 XV-N40BK,XV-N44SL 4.10 UPD789074MC-021(IC701):System controller • Pin layout PROG S/COMP FASTPLAY PROGRN RESET PRORED LMUTE AVCO P.ON/STANDB CPURST TCLOSE MUTE TOPEN FLDIN AVCI FLDOUT REMO FLCLK SWCLOSE FLSTB SWOPEN INTP • Pin function Pin No. Symbol Description INT/PROG Change signal input terminal H:Interlace...
  • Page 41 XV-N40BK,XV-N44SL (No.A0040)1-41...
  • Page 42 XV-N40BK,XV-N44SL VICTOR COMPANY OF JAPAN, LIMITED AV & MULTIMEDIA COMPANY OPTICAL DISC CATEGORY 1644, Shimotsuruma, Yamato, Kanagawa 242-8514, Japan (No.A0040) Printed in Japan 200303WPC...

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