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JVC CE MANUALXV-N450BUC, Service Manual

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JVC CE MANUALXV-N450BUC Service Manual Download Page 45

Summary of Contents for CE MANUALXV-N450BUC

Page 1: ...VICE MANUAL XV N450BUC XV N452SUC XV N452SUM COPYRIGHT 2007 Victor Company of Japan Limited TABLE OF CONTENTS 1 PRECAUTION 1 3 2 SPECIFIC SERVICE INSTRUCTIONS 1 6 3 DISASSEMBLY 1 7 4 ADJUSTMENT 1 12 5 TROUBLESHOOTING 1 13 XV N450BUC XV N452SUC XV N452SUM D7P2 DISPLAY Area Suffix UC Canada UM Latin America ...

Page 2: ...EO OUT Y 1 0 V p p 75 Ω negative sync Mini DIN 4 pin 1 C 0 3 V p p 75 Ω COMPONENT VIDEO OUT Y 1 0 V p p 75 Ω negative sync RCA jack 1 Pb Pr 0 7 V p p 75 Ω RCA jack x 2 AUDIO OUT 2 0 Vrms 1 KHz 0 dB 600 Ω RCA jack L R 1 DIGITAL OUT COAXIAL 0 5 V p p 75 Ω RCA jack 1 System Laser Semiconductor laser wavelength 650 nm Signal system NTSC Frequency response DVD PCM 96 kHz 8 Hz to 44 kHz DVD PCM 48 kHz 8...

Page 3: ...headphone jack control shafts etc to be sure the product is safe to operate without danger of electrical shock Do not use a line isolation transformer during this check Plug the AC line cord directly into the AC outlet Using a Leakage Current Tester measure the leakage current from each exposed metal parts of the cabinet particular ly any exposed metal part having a return path to the chassis to a...

Page 4: ...the traverse unit optical pickup to strong shocks as it is a sensitive complex unit 2 Cut off the shorted part of the flexible cable using nippers etc after replacing the optical pickup For specific details refer to the replacement procedure in the text Remove the anti static pin when replacing the traverse unit Be careful not to take too long a time when attaching it to the connector 3 Handle the...

Page 5: ...e the complete Laser Unit if it malfunctions 4 CAUTION The laser products uses visible and or invisible laser radiation and is equipped with safety switches which prevent emission of radiation when the drawer is open and the safety interlocks have failed or are defeated It is dangerous to defeat the safety switches 5 CAUTION If safety switches malfunction the laser is able to function 6 CAUTION Us...

Page 6: ...le Press pause key once Change will be applied when power OFF ON Use arrow key F D G E to move to approprite position and make changes DVD LOGO Status NO Disk status Remotecontrol Pause key 1 4 7 2 in order MODEL XV N450B XV N452S NAME HEX OPT 1 00 OPT 2 00 OPT 3 00 OPT 4 00 OPT 5 00 OPT 6 00 OPT 7 00 OPT 8 00 DETECT NEW EEPROM OPTION EDIT SCREEN ...

Page 7: ...ure remove the top cover and front panel assembly 1 Disconnect the card wire from connectors P2201 and P2202 on the main board 2 Remove the four screws C attaching the mechanism as sembly Fig 4 3 1 4 Removing the regulator board and main board See figure 5 Prior to performing the following procedure remove the top cover 1 Disconnect the wire from connector PW6101 on the main board 2 Disconnect the...

Page 8: ... 4 3 1 2 6 8 9 Gear Middle 1 2 6 8 9 10 Gear Rack 1 Screw 4 3 1 2 7 11 Rubber Rear 4 3 1 2 7 12 Frame Assem bly Up Down 1 Screw Bottom 4 4 1 2 13 Belt Loading 1 Locking Tab 4 4 1 2 13 14 Gear Pulley 4 4 1 2 13 14 15 Gear Loading 1 Locking Tab 4 4 1 2 7 12 13 14 16 Guide Up Down 4 4 1 2 13 17 PWB Assembly Loading 1 Locking Tab 1 Hook 2 Screw Bottom 4 4 1 2 7 12 13 14 15 16 17 18 Base Main 2 Locking...

Page 9: ...1 Plate Clamp 1 Turn the Plate Clamp to counterclockwise direction and then lift up the Plate Clamp 3 3 1 1 2 Magnet Clamp 3 3 1 1 3 Clamp Upper Fig 4 2 3 3 2 TRAY DISC FIG 4 2 1 Insert and push a Driver in the emergency eject hole A at the right side or put the Driver on the Lever B of the Gear Emergency and pull the Lever B in direction of arrow so that the Tray Disc is ejected about 15 20mm 2 P...

Page 10: ...o YD118 Fig 4 3 3 3 3 BASE ASSEMBLY SLED FIG 4 3 1 Release 4 Screw S2 2 Disconnect the FFC Connector C1 3 3 3 1 Gear Feed 3 3 3 2 Gear Middle 3 3 3 3 Gear Rack 1 Release the Scerw S3 3 3 4 RUBBER REAR FIG 4 3 ...

Page 11: ...FIG 4 4 1 Unlock the Locking Tab L4 in direction of arrow B and then separate the Gear Pulley from the Base Main 3 3 8 GEAR LOADING FIG 4 4 3 3 9 GUIDE UP DOWN FIG 4 4 1 Move the Guide Up Down in direction of arrow A as Fig A 2 Push the Locking Tab L5 down and then lift up the Guide Up Down to separate it from the Base Main Note When reassembling place the Guide Up Down as Fig C and move it in dir...

Page 12: ...llowing points when writing the update disc Make sure to write in Disc at Once Set the file compatibility to JOLIET format If the writing method is not correct the update results in an error 4 2 2 Update procedure 1 Turn the power of the main unit ON and insert the update disc 2 The TV screen shows the display as shown as below after a while select Start and then press ENTER with the remote contro...

Page 13: ...sent at collector of Q126 No 3 3VA YES YES YES YES No 5V No 3 3VA Replace Q126 Check FR101 Replace Q121 YES Is there a DC voltage at cathode of D105 or D107 YES NO NO NO NO Replace IC101 A B Check D105 D106 D107 D108 and replace Is 3 3VA section working Is 3 3VA section working Is 3 3V present at emitter of Q121 ...

Page 14: ... close to closed position SLED moves to inner position 1 Judge whether have disc and disc type 2 Jump to related disc reading procedure 1 Execute pressed key IR key 2 System operation routine loop 1 Stop playback open tray 2 Display tray open message LOGO NO YES YES NO YES YES NO NO Tray closed SLED at inner side Recieve OPEN CLOSE key Receive CLOSE key ...

Page 15: ...ulators or related diodes YES NO Connect to PC RS232 cable and update the FLASH memory code 1 Check 27MHz system clock 2 Check system reset circuit 3 Check FLASH R W enable signal PRD RWR 4 Check RS232 SIGNALS 5 Check FLASH memory related circuit NO A YES Check the AC Voltage power PCBA 110V or 220V Update FLASH successfully Is the DC voltage outputs OK 5V 3 3V 12V 5 6V MOTOR Is 3 3V and 1 8V DC o...

Page 16: ...heck AV cable connection to TV set NO NO YES Check the load OPEN CLOSE switch NO YES Check the tray control IO pins on ZR966 AM5869S NO YES Check the tray control amplifying circuit on motor driver Check the cable connection between main PCBA and loader YES YES Show LOGO Flash memory operates properly ZR966 VIDEO outputs properly Normal TROUT TRIN signals Normal TRCLOSE TROPEN signal Normal LOAD L...

Page 17: ...lose YES YES Check cable connect on with pick up head YES YES Motor driver DRVSB pin is high Is SLED_S DC Level higher than 1 4V SL and SL output properly Does the SLED move to inner side when it is at outer position NO NO Check FOCUS_S connection on ZR966 and motor driver Proper FOCUS_S outputs to motor driver NO Check the amp circuit on motor driver Proper F F outputs Optical Lens has movements ...

Page 18: ... YES Check SPINDLE_S related circuit on ZR966 NO YES Check the spindle control amp circuit of motor driver Check the cable connection between spindle and main PCBA YES YES Laser turns on when reading disc DVD_LD or CD_LD output properly NO Check the related circuit on laser power transistor Collector voltage of power transistor is OK Put disc in Disc ID is correct Does spindle rotate Proper SPINDL...

Page 19: ...us on OK Proper signals on A B C D of ZR966 NO NO Check the track_s connection on ZR966 and motor dirver Track on OK Disc is play Properly track_s signal on ZR966 NO Check the tracking control amp circuit on motor driver T T output properly NO Check the focus_s connection on ZR966 and motor driver Check focus_s signal on ZR966 YES Check the focus control amp circuit on motor driver F F output prop...

Page 20: ...unication lines on ZR966 YES YES TEST END Check the cable connection on front panel Normal audio output when disc playback Audio DAC received correct data stream Commu nications between IR VFD Front panel key ZR966 is normally Normal IR VFD Front panel key functions NO Check the related circuit of Audio DAC Normal audio DAC out E ...

Page 21: ... 2 DETAILS AND WAVEFORMS ON SYSTEM TEST AND DEBUGGING 5 2 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 Fig 1 2 1 1 2 3 4 2 3 4 3 3VA PWR_CTL RESET ...

Page 22: ...1 22 No YD118 3 RS232 waveform during procedure Downloading Fig 1 3 4 Flash R W enable signal during download Downloading Fig 1 4 5 6 5 6 TXD RXD 7 8 7 8 PRD IC602 PWR ...

Page 23: ... No YD118 1 23 5 2 2 SDRAM CLOCK Fig 2 1 5 2 3 TRAY OPEN CLOSE SIGNAL Fig 3 1 DCLK 128MHz Vp p 2 2 Vmax 2 7V IC603 9 9 IC201 10 11 12 13 11 10 12 13 INSW OUTSW CLOSE OPEN ...

Page 24: ... CONDITION Fig 4 1 5 2 5 LENS CONTROL RELATED SIGNAL NO DISC CONDITION Fig 5 1 14 15 16 17 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 15 14 16 17 18 19 20 18 19 20 FOCUS_S 1 5V 1 4V 1 3V FACT 3 2V 2 7V 2 2V FACT 3 2V 2 7V 2 2V ...

Page 25: ...TROL RELATED SIGNAL NO DISC CONDITION Fig 6 1 5 2 7 SPINDLE CONTROL WAVEFORM NO DISC CONDITION Fig 7 1 CN201 21 22 23 21 22 23 MDI1 0V 180mV CD_LD 3 3V 2 3V DVD_LD 3 3V 2 3V 24 25 26 25 26 SPINDLE_S 1 4V 1 8V SP 3 6V 2 4V SP 3 6V 4 8V 24 ...

Page 26: ...1 26 No YD118 5 2 8 FOCUS ON WAVEFORM Fig 8 1 DVD Fig 8 2 CD 27 28 29 FOCUS_S FF FF FOCUS_S FF FF 27 28 29 IC201 28 27 29 ...

Page 27: ... No YD118 1 27 5 2 9 TRACKING CONTROL RELATED SIGNAL SYSTEM CHECKING Fig 9 1 DVD Fig 9 2 CD 30 31 32 TRACK_S Tracking Tracking 30 31 32 P2201 TRACK_S Tracking Tracking 30 31 32 30 31 32 P2201 ...

Page 28: ...1 28 No YD118 5 2 10 ZR966 AUDIO COAXIAL OUTPUT SPDIF Fig 10 1 5 2 11 ZR966 VIDEO OUTPUT WAVEFORM 1 100 COLOR BAR Fig 11 1 33 33 ...

Page 29: ... No YD118 1 29 2 COMPOSITE VIDEO SIGNAL Fig 11 2 5 2 12 AUDIO OUTPUT FROM ZR966 Fig 12 1 ...

Page 30: ... No YD118 VPT Printed in Japan Victor company of Japan Limited DIGITAL VIDEO STORAGE CATEGORY 12 3 chome Moriya cho Kanagawa ku Yokohama city Kanagawa prefecture 221 8528 Japan ...

Page 31: ...MS DVD PLAYER No YD118SCH 2007 6 COPYRIGHT 2007 Victor Company of Japan Limited CD ROM No SML200706 XV N450BUC XV N452SUC XV N452SUM XV N450BUC XV N452SUC XV N452SUM D7P2 DISPLAY Area Suffix UC Canada UM Latin America ...

Page 32: ...n schematic diagram Voltage indications for REC and PB mode on the sche matic diagram are as shown below 6 Indication of the parts for adjustments The parts for the adjustments are surrounded with the circle as shown below 7 Indication of the parts not mounted on the circuit board OPEN is indicated by the parts not mounted on the circuit board R216 OPEN 1 2 3 1 2 3 1 2 3 1 4 2 3 Removable connecto...

Page 33: ... 3 4 5 B C D E F G IC201 AM5890 Motor Driver IC601 ZR966 IC604 ES29LV160EF70TG FLASH ROM IC603 M12L64164A SDRAM CN101 DOWN_LOAD_I F IC605 S524A40X21 EEPROM IC702 MC4580 OP AMP Block diagrams Over all 2 1 2 2 ...

Page 34: ...A 1 2 3 4 5 B C D E F G Power regulator SMPS section Servo control ZR966 section IC601 ZR966 DVD PLAYER ONE CHIP IC201 AM5890 Motor Driver 2 3 2 4 ...

Page 35: ...on Video section Audio section MPEG IC IC601 Vaddis966 IC701 DACs part Vaddis 966 have 5 DACs Either encoder can be selected to the five 14 bits DACs S video jack is not used in case of using Scart jack MPEG IC601 AMP MC4580M IC702 6 18 20 24 bit I2S or EIAJ serial audio outputs A OUT L A OUT R Serial Stereo Digital Out COAXI_SPDIF Oprical_SPDIF 2 5 2 6 ...

Page 36: ...OULD BE REPLACED ONLY WITH TYPES IDENTICAL TO THOSE IN THE ORIGINAL CIRCUIT SPECIAL COMPONENTS ARE SHADED ON THE SCHEMATIC FOR EASY IDENTIFICATION THIS CIRCUIT DIAGRAM MAY OCCASIONALLY DIFFER FROM THE ACTUAL CIRCUIT USED THIS WAY IMPLEMENTATION OF THE LATEST SAFETY AND PERFORMANCE IMPROVEMENT CHANGES INTO THE SET IS NOT DELAYED UNTIL THE NEW SERVICE LITERATURE IS PRINTED 1 Shaded parts are critica...

Page 37: ...A 1 2 3 4 5 B C D E F G System MPEG section SHEET 2 2 9 2 10 ...

Page 38: ...A 1 2 3 4 5 B C D E F G Servo control section SHEET 3 2 11 2 12 ...

Page 39: ...A 1 2 3 4 5 B C D E F G AV Jack section SHEET 4 2 13 2 14 ...

Page 40: ...A 1 2 3 4 5 B C D E F G Timer Key control section SHEET 5 2 15 2 16 ...

Page 41: ...168 0 812 2 36 169 0 0001 0 003 170 0 256 1 726 171 1 598 1 694 172 0 0001 0 003 173 0 806 2 097 174 0 001 1 647 175 0 002 0 93 176 0 0001 0 003 177 3 29 3 24 178 0 0001 0 199 179 0 0001 0 006 180 3 29 2 36 181 3 29 3 22 182 0 0001 1 733 183 3 29 3 25 184 0 0015 1 612 185 0 0001 0 0002 186 0 0029 2 484 187 0 0018 1 697 188 3 28 3 24 189 0 0003 0 0005 190 1 754 1 749 191 0 0002 0 0003 192 0 003 0 0...

Page 42: ...A 1 2 3 4 5 B C D E F G Printed circuit boards Main board 01 Top view Bottom view 2 19 2 20 ...

Page 43: ...A 1 2 3 4 5 B C D E F G Timer board 01 Power regulator board 01 Key board 01 Top view Top view Bottom view Bottom view 2 21 2 22 ...

Page 44: ...2 23 2 24 ...

Page 45: ......

Page 46: ...No YD118SCH Victor Company of Japan Limited DIGITAL VIDEO STORAGE CATEGORY 12 3 chome Moriya cho kanagawa ku Yokohama kanagawa prefecture 221 8528 Japan VPT Printed in Japan ...

Page 47: ...numbers BEWARE OF BOGUS PARTS Parts that do not meet specifications may cause trouble in regard to safety and performance We recommend that genuine JVC parts be used x_ in a description column shows the number of the used part Contents Exploded view of general assembly and parts list DVD mechanism assembly and parts list Electrical parts list Packing materials and accessories parts list 3 2 3 4 3 ...

Page 48: ...D118 Exploded view of general assembly and parts list C B 462 460 460 460 250 462 A44 283 261 261 262 320 467 465 261 D A C B 462 462 P101 MAIN SMPS 452 D A43 CABLE1 CN903 452 KEY TIMER 452 A 300 Block No M1MM ...

Page 49: ... Panel 450UC 452UC 320 LG MGC32047717 Rear Panel 452UM 452 LG 1SZZR 0098A Screw x5 460 LG 1SZZR 0098H Screw x5 450UC 460 LG 1SZZR 0098G Screw x5 452UC 452UM 462 LG 1SZZR 0098J Screw x13 465 LG 1SZZR 0097K Screw x2 467 LG 1SZZR 0097N Screw A43 LG AAX33298907 FRONT PANEL ASSEMBLY 450UC A43 LG AAX33298908 FRONT PANEL ASSEMBLY 452UC A43 LG AAX33298909 FRONT PANEL ASSEMBLY 452UM A44 LG ADV30899516 Fram...

Page 50: ...3 4 No YD118 DVD mechanism assembly and parts list A02 439 018 013 017 014 016 015B 015A 435 015 019 440 432 012A 010 439 431 435 030 024 025 036 A03 430 021 012A 012 012 026 A01 Block No M2MM ...

Page 51: ...016 LG EBR34880101 PCB Assembly 017 LG 4470R 0176A Gear 018 LG MEA32088501 Guide 019 LG 3210R M007A Frame 021 LG 4681R B009C Motor Unclassified 024 LG 4470R 0179A Gear 025 LG 4470R 0178A Gear 026 LG MJS31956301 Tray 030 LG 4470R 0180A Gear 036 LG 4370R 0136A Shaft 430 LG 1SZZR 0064B Screw x2 431 LG 1SZZR 0062A Screw 432 LG 1SZZR 0072A Screw 435 LG 1SZZR 0011A Screw x4 439 LG 1SZZR 0075A Screw x2 4...

Page 52: ...09 LG 0CE4764C638 Capacitor AL Radial ESS476M6R3T1A5C07G 47uF 20 6 C210 LG 0CH1104K942 Capacitor Ceramic Chip 0603F104Z500CT 100nF 20TO 80 C213 LG 0CH1104K942 Capacitor Ceramic Chip 0603F104Z500CT 100nF 20TO 80 C214 LG 0CE4774F638 Capacitor AL Radial SHL5 0TP16VB470M 470uF 20 16V C217 QET61CM 107Z E CAPACITOR 100uF 16V M C219 LG 0CH1104K942 Capacitor Ceramic Chip 0603F104Z500CT 100nF 20TO 80 C220 ...

Page 53: ...2 0X4 R103 LG 0RS5602K619 Resistor Metal Oxide FilmSML02R0J56K0 56KΩ 5 2W 8 6X R105 LG 0RD0392F608 Resistor Carbon Film RD 96S1J39R0 39Ω 5 1 6W 3 2 R121 QRE141J 102Y C RESISTOR 1kΩ 1 4W J R122 LG 0RD1200F608 Resistor Carbon Film RD 96S1J120R 120Ω 5 1 6W 3 R123 LG 0RD4702F608 Resistor Carbon Film RD 96S1J47K0 47KΩ 5 1 6W 3 R124 LG 0RD1800F608 Resistor Carbon Film RD 96S1J180R 180Ω 5 1 6W 3 R125 QRD...

Page 54: ...615 LG 0LC11608C01 Filter Bead HB 1M1608 102JT 1000Ω 1 6X0 L616 LG 6200HJC102A Filter Bead HB 1M2012 102JT 1000Ω 2X1 25 L619 LG 0LC11608C01 Filter Bead HB 1M1608 102JT 1000Ω 1 6X0 L620 LG 0LC11608D01 Filter Bead HB 1M1608 121JT 120Ω 1 6X0 8 L622 LG 0LC11608D01 Filter Bead HB 1M1608 121JT 120Ω 1 6X0 8 L623 LG 6200HJC102A Filter Bead HB 1M2012 102JT 1000Ω 2X1 25 L702 LG 0LCCE00004L Inductor Multilay...

Page 55: ... Description Local 801 LG AFN32666525 INST BOOK 450UC 452UC 801 LG AFN32666522 INST BOOK 452UM 802 LG MAY38135849 PACKING CASE 450UC 802 LG MAY38135854 PACKING CASE 452UC 802 LG MAY38135855 PACKING CASE 452UM 803 LG MFZ33010801 PACKING PAD x2 804 PACKING SHEET 808 Battery 811 LG 6850R PAA8F Cable Assembly 450UC 452UC 811 LG 6850R PAA2F Cable Assembly 452UM 812 LG 6850R PBA8H Cable Assembly 450UC 4...

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