JVC XV-N420B Service Manual
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SERVICE MANUAL
2005
2
YD054
XV-N420B,XV-N422S
OPEN/
CLOSE
+
SLOW
DISPLAY ON SCREEN
ENTER
PREVIOUS
SELECT
CLEAR
1
2
4
5
7
8
CANCEL
0
TITLE/
SOUND
GROUP
EFFECT
ANGLE
SUBTITLE
SLIDE EFFECT
1
PRECAUTION. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-3
2
SPECIFIC SERVICE INSTRUCTIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-7
3
DISASSEMBLY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-8
4
ADJUSTMENT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-15
5
TROUBLESHOOTING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-18
DVD PLAYER
STANDBY/ON
NEXT
3
6
9
RETURN
VFP
DIMMER
I/P
AUDIO
ZOOM
XV-N420BUSC,XV-N420BUCC,XV-N422SUSC,XV-N422SUCC
TABLE OF CONTENTS
COPYRIGHT © 2005 Victor Company of Japan, Limited
Area Suffix
US ----------------------- U.S.A.
UC ------------------- Canada
®
V I D E O
No.YD054
2005/2
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Table of Contents
Related Manuals for JVC XV-N420B
Summary of Contents for JVC XV-N420B
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Page 1: Table Of Contents
SERVICE MANUAL DVD PLAYER YD054 2005 XV-N420B,XV-N422S Area Suffix US ----------------------- U.S.A. UC ------------------- Canada STANDBY/ON OPEN/ CLOSE SLOW DISPLAY ON SCREEN ENTER PREVIOUS SELECT NEXT CLEAR CANCEL RETURN TITLE/ SOUND GROUP EFFECT DIMMER ® ANGLE SUBTITLE AUDIO ZOOM SLIDE EFFECT... - Page 2 SPECIFICATION XV-N420B,XV-N422S for US,UC General Readable discs DVD VIDEO, DVD-R (Video format), DVD-RW (Video format), SVCD, Video CD, Audio CD (CD-DA), CD-R/RW (CD-DA, SVCD, Video CD, MP3 format, JPEG) Video format NTSC, 480i/480p selectable Other Power requirements AC 120 V~, 60 Hz Power consumption 11.0 W (POWER ON), 1.0 W (STANDBY mode)
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Page 3: Precaution
SECTION 1 PRECAUTION Safety Precautions (1) This design of this product contains special hardware and path to the chassis, and measure the AC voltage across many circuits and components specially for safety purpos- the resistor. Now, reverse the plug in the AC outlet and es. - Page 4 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. 1.5.1 Grounding to prevent damage by static electricity Static electricity in the work area can destroy the optical pickup (laser diode) in devices such as DVD players.
- Page 5 Importance administering point on the safety L960 B723 CN903 B731 B725 B712 B918 B902 B726 EP901 B916 B915 B728 B711 B709 B727 B914 B912 B913 EP902 B910 L709 B708 B770 L730 B769 B741 B908 B904 B768 L706 CP950 B907 Q951 B745 L701 CN901...
- Page 6 Precautions for Service 1.9.1 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. (3) Do not use a tester to examine the laser diode.
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Page 7: Specific Service Instructions
SECTION 2 SPECIFIC SERVICE INSTRUCTIONS This service manual does not describe SPECIFIC SERVICE INSTRUCTIONS. (No.YD054)1-7... -
Page 8: Disassembly
SECTION 3 DISASSEMBLY Main body section 3.1.1 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 TOP COVER TOP COVER TOP COVER... - Page 9 3.1.3 Removing the mechanism assembly (See Figure 3, Figure 4, Figure 5) • Prior to performing the following procedure, remove the top D Clamper base cover/front panel assembly. CN503 (1) Remove the one screw C attaching the FL Display board and lug wire.
- Page 10 3.1.4 Removing the tray(See Figure 6, Figure 7) • Prior to performing the following procedure, remove the mech- Tray anism 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 11 3.1.6 Removing the digital board and main board. (See Figure 9 ,Figure 10) • Prior to performing the following procedure, remove the top CN202 cover/front panel assembly/rear panel. CN201 (1) Remove the two screws H attaching the digital board. CN301 CN303 (2) Disconnect the card wire from connector CN201, CN202, CN101, CN301, CN302,...
- Page 12 Loading mechanism assembly 3.2.1 Removing the traverse mechanism assembly (See Figure 1) (1) Reverse the loading mechanism assembly. Loading mechanism assembly (2) A card wire is removed from a wire bracket. (3) Remove the four screws A attaching the traverse mecha- nism assembly.
- Page 13 3.2.3 Removing the loading motor (See Figure 4 and Figure 5) • Prior to the following procedure, remove the tray, the traverse Loading base Belt mechanism assembly, and the elevator. (1) Remove the belt from the pulley. Pulley Slide cam Pulley (2) Remove two screws B attaching the loading motor.
- Page 14 Traverse mechanism assembly 3.3.1 Removing the pickup (See Figure 6, Figure 7) • Prior to the following procedure, remove the traverse mecha- nism assembly. (1) Remove one screw C attaching the plate. (2) Remove the plate and the leaf spring. (3) Lift d of the shaft 1, and pull out the shaft 1 from e.
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Page 15: Adjustment
SECTION 4 ADJUSTMENT 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 "N420 ∗∗ ", and the main body turns to test mode. *The portion of "∗∗"... - Page 16 Upgrading of firmware The latest firmware for upgrading is updated in "Digital Video Storage" 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. 4.3.1 Distribution method (1) Compressed file is distributed through JS-NET.
- Page 17 Confirm method of operation Please confirm the operation of the undermentioned item after doing the repair and the upgrade of the firmware. Initialize Refer to the initialization method. Muting working The noise must not be had to the performance beginning when you push "PLAY" button or at ON/STANDBY.
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Page 18: Troubleshooting
SECTION 5 TROUBLESHOOTING 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" perimeter for SW detection? "NO DISC"... - Page 19 Check points for each error 5.2.1 Spindle start error (1) Defective spindle motor • Are there several ohms resistance between each pin of CN201 "2-3","3-4","2-4"? (The power supply is turned off and measured.) (2) Defective spindle motor driver (IC201) • Has motor drive voltage of a sine wave or a rectangular wave gone out to each terminal(UOUT,VOUT,WOUT) of CN201"2,3,4"...
- Page 20 5.2.6 Spindle CLV NG • IC101 -- "55"(DIN), "54(DIP). • Does not the input or the output of driver's spindle signal do the grip? • Has the tracking been turned on? • Spindle motor or driver is defective. • Additionally, "IC101 and IC301"...
- Page 21 (No.YD054)1-21...
- Page 22 Victor Company of Japan, Limited AV & MULTIMEDIA COMPANY DIGITAL VIDEO STORAGE CATEGORY 12, 3-chome, Moriya-cho, kanagawa-ku, Yokohama, kanagawa-prefecture, 221-8528, Japan (No.YD054) Printed in Japan...
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Page 23: Schematic Diagrams
SCHEMATIC DIAGRAMS DVD PLAYER XV-N420B,XV-N422S CD-ROM No.SML200502 Area Suffix US ----------------------- U.S.A. UC ------------------- Canada STANDBY/ON OPEN/ CLOSE SLOW DISPLAY ON SCREEN ENTER PREVIOUS SELECT NEXT CLEAR CANCEL RETURN TITLE/ SOUND GROUP EFFECT DIMMER ® ANGLE SUBTITLE AUDIO ZOOM SLIDE EFFECT... - Page 24 CHARTS AND DIAGRAMS NOTES OF SCHEMATIC DIAGRAM 4. Voltage measurement 1) Regulator (DC/DC CONV) circuits Safety precautions REC : Colour bar signal. The Components indentified by the symbol PB : Alignment tape (Colour bar). critical for safety. For continued safety, replace safety —...
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Page 26: Block Diagram
Block diagram (Front end processor) IC101 AOUTL+ AOUTR+ SVREF A B C D E F RF 2CH DAC CDPD DVDPD FROM IC403 Pick-up T+ T- Unit F+ F- 4CH Driver DFCT IC201 BSUM SPDIF WOUT FE CE AOUTL- VOUT MINTR FODRV AOUTR- UOUT... - Page 27 J602 L702 S-VIDEO output SPDIF Coaxial digital IC704 L707 output J601 L706 PbOUT Component L730 video output PrOUT L709 C/Cv/Y Composite L701 video output AOUTL+/- AOUTR+/- AUDIOL/R OP.Amplifier Analog IC701 audio output K1,K2 Operation switch SG1 to SG4 S501 to S508 AC-DC Q951 D951,C950...
- Page 28 Standard schematic diagrams Servo control section R145 D3.3V R126 TP48 TP49 TP47 R146 C181 R174 C182 R175 3.3K R125 C978 R132 TP150 C965 C149 R142 1000P Q131 C152 C154 Q130 R130 2SK3019-X C153 C155 5.1K Q132 C156 C146 2SD1623/ST/-X C102 C101 2SK3019-X C140...
- Page 29 CN310 D3.3V DGND B3.3V B3.3V B1.8V D3.3V R399 D3.3V C342 AOUTL R371 C370 R372 TSD1 R373 C333 C341 R374 C330 C339 C331 C340 TSD0 R375 C369 100/4 470P R376 R377 SPDIF R307 4.7K C379 DGND AGND R360 TP304 TP346 TP307 C334 TP306 TP305...
- Page 30 Power supply and AV output terminal section C902 T901 QQS0328-001 FC901 R950 QNG0019-001Z FC902 D951 QNG0019-001Z ICP-N10-T C906 R901 C950 1F4G-T2 D903 1000P 100/6.3 DI106 C901 D905 D960 C907 MTZJ3.6B-T2 0.082 47/200 D902 P901 1F4G-T2 D952 QGA7901C1-02 C982 1F4G-T2 L901 39/35 QQR1384-001 C903...
- Page 31 EP901 C918 C991 C920 C919 C917 TO CN301 SHEET 1 CP950 BUSWIRE C990 CN901 QGF1040C1-13 NQR0129-002X Q951 2SC3576-JVC-T R963 R932 TO CN303 R934 R961 1.5K Q952 SHEET 1 RT1P441C-X S502 S501 R911 QSW0651-001Z QSW0651-001Z CN902 S508 QGF1040C1-07 S503 QSW0651-001Z K501...
- Page 32 Mechanism switch and LED board section UDZS7.5B-X SELU1E10WXM-P QGF1006F2-07W TO CN50 SHEET 2 UDZS7.5B-X SELU1E10WXM-P...
- Page 33 TO CN503 SHEET 2 QSW1074-001 TO CN202 SHEET 1 QGF1016F3-0 5 lvs30022001a_rev0 SHEET 3 2-10...
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Page 34: Printed Circuit Boards
Printed circuit boards Main board <01> GNB10030-001B K901 R964 R709 R706 L960 R723 R753 C952 C702 R965 R716 R735 R738 EP901 R726 R715 C953 C756 R711 C748 L709 C771 L730 C752 D704 L706 C718 D705 L701 R733 C730 C720 R732 R780 K701 L702... - Page 35 CAUTION : FOR CONTINUED PROTECTION AGAINST FIRE HAZARD, REPLACE ONLY WITH SAME TYPE AND RATED FUSE(S). ATTENTION : REPLACER PAR DES FUSIBLE DE MEME TYPE. K509 K510 R709 R706 R704 C702 R705 CN903 R735 Q963 R981 Q960 Q702 R962 Q962 C756 Q701 K501...
- Page 36 Digital board <02> GNB10029-001B Forward side TP100 R212 CN201 C208 C273 CN101 R205 C141 R211 C140 C209 R275 C109 X301 R215 C101 C336 R214 C323 C322 C117 C324 R311 R312 C275 C207 C103 C274 R206 R219 C114 C115 R142 C202 C277 C262 C205...
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Page 37: Switch Board
LED board <03> LVB20055-001A C148 CN101 R137 C141 R138 C140 C156 C109 C117 C120 C103 C114 C115 R142 C146 TP93 C147 C112 Q131 R139 Q132 C143 R117 R130 C127 R141 TP132 R140 C173 C126 R315 K311 C339 C333 R423 R107 C137 Q101 R106... - Page 38 Victor Company of Japan, Limited AV & MULTIMEDIA COMPANY DIGITAL VIDEO STORAGE CATEGORY 12, 3-chome, Moriya-cho, kanagawa-ku, Yokohama, kanagawa-prefecture, 221-8528, Japan Printed in Japan No.YD054SCH...
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Page 39: Parts List
PARTS LIST [XV-N420B,XV-N422S] * All printed circuit boards and its assemblies are not available as service parts. * (x_) in a description column shows the number of the used part. Area Suffix US ---------------------- U.S.A. UC -------------------- Canada - Contents -... - Page 40 Exploded view of general assembly and parts list Block No.M1MM FRONT SIDE Digital board "A" Operation switch board Main board VFD board "A" BACK SIDE "A" "A" BACK SIDE 3-2(No.YD054)
- Page 41 Block No. [M][1][M][M] Symbol No. Part No. Part Name Description Local GN10059-023A FRONT PANEL 420UC,420US GN10059-024A FRONT PANEL 422UC,422US GN40020-002A JVC MARK GN20111-001A WINDOW SCRREN GN20110-003A PUSH BUTTON 420UC,420US GN20110-004A PUSH BUTTON 422UC,422US QYSDSF2608ZA TAP SCREW FOR PUSH BUTTON(x3) GN10061-001A...
- Page 42 DVD Traverse mechanism assembly and parts list Block No.M2MM GXL-Z1-21C Grease =JVG-31N =CFD-4007ZY2 =PG-641 =1401C < Back side > 0.1mm 63.3mm 10.5mm 0.1mm 3-4(No.YD054)
- Page 43 DVD Traverse mechanism Block No. [M][2][M][M] Symbol No. Part No. Part Name Description Local LE20729-002A MECHA BASE LE20731-002A SPINDLE BASE QYSDST2604MA SCREW M2.6 x 4mm(x2) LE40931-001A SHAFT LE40995-001A BAR SPRING QYSPSTU2080MA TAP SCREW M2 x 8mm LE20730-002A FEED HOLDER QAR0165-001 FEED MOTOR LV41510-001A...
- Page 44 DVD Loading mechanism assembly and parts list Block No.M3MM Grease =JVG-31N FLM-J4-11M FLM-J4-11M =FL-7750E =SC306 =1401C Back side Switch board Back side 3-6(No.YD054)
- Page 45 DVD Loading mechanism Block No. [M][3][M][M] Symbol No. Part No. Part Name Description Local LV10932-005A LOADING BASE LV35052-002A PULLEY GEAR LV35053-002A MIDDLE GEAR LV35054-002A IDLE GEAR LV21748-004A SLIDE CAM LV43845-002A COLLAR LV43846-002A C SHAFT LV21749-005A ELEVATOR E407140-001SS C.D ROLLER E407149-001SS RUBBER TUBE LV10933-003A...
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Page 46: Electrical Parts List
2SC3928A/QR/-X TRANSISTOR C907 QETM2DM-476 E CAPACITOR 47uF 200V M Q760 RT1P44QC-X DIGI TRANSISTOR C908 QCZ0302-220Z C CAPACITOR 22pF 1kV J Q951 2SC3576-JVC-T TRANSISTOR C909 QEZ0657-396Z E CAPACITOR 39uF Q952 RT1P441C-X DIGI TRANSISTOR C910 NCB31CK-104X C CAPACITOR 0.1uF 16V K... - Page 47 Symbol No. Part No. Part Name Description Local Symbol No. Part No. Part Name Description Local R735 NRSA63J-201X MG RESISTOR 200Ω 1/16W J K518 NRSA63J-0R0X MG RESISTOR 0Ω 1/16W J R736 NRSA63J-472X MG RESISTOR 4.7kΩ 1/16W J K519 NRSA63J-0R0X MG RESISTOR 0Ω...
- Page 48 Symbol No. Part No. Part Name Description Local Symbol No. Part No. Part Name Description Local C124 NCF31CZ-104X C CAPACITOR 0.1uF 16V Z C349 NCF31CZ-104X C CAPACITOR 0.1uF 16V Z C125 NCF31CZ-104X C CAPACITOR 0.1uF 16V Z C350 NCF31CZ-104X C CAPACITOR 0.1uF 16V Z...
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Page 49: Switch Board
Symbol No. Part No. Part Name Description Local Symbol No. Part No. Part Name Description Local R142 NRSA63J-0R0X MG RESISTOR 0Ω 1/16W J R375 NRSA63J-102X MG RESISTOR 1kΩ 1/16W J R145 NRSA63J-0R0X MG RESISTOR 0Ω 1/16W J R377 NRSA63J-102X MG RESISTOR 1kΩ... - Page 50 Packing materials and accessories parts list Block No.M4MM INST BOOK SA ACCESSORIES SA 3-12(No.YD054)
- Page 51 Packing and accessories Block No. [M][4][M][M] Symbol No. Part No. Part Name Description Local GNT0060-002B INST BOOK ENGLISH(UC) 420UC,422UC GNT0060-003B INST BOOK FRENCH(UC) 420UC,422UC GNT0060-001A INST BOOK ENGLISH(US) 420US,422US LE40932-002A INSERT SHEET YU20333 SAFETY INST. A 4 ------------ WARRANTY CARD BT-52006-1 420UC,422UC...