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Memorex MVD4540B, Service Manual

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Memorex MVD4540B Service Manual Download Page 62

H-2

WAVEFORMS

HI-FI/DEMODULATOR

PB

200

µ

s

1.0V

22

PB

500

µ

s

1.0V

24

PB

5ms

500mV

25

POWER ON

50ns

1.0V

23

PB

5ms

2.0V

27

PB

10ms

1.0V

28

10

µ

s

200mV

32

TUNER/JACK

The following waveforms were measured at the point of the corresponding
balloon number in the schematic diagram.

NOTE:

SYSCON

PB

5ms

1.0V

21

5

µ

s

500mV

38

POWER

5

µ

s

5.0V

39

PB

200ms

500mV

19

REC

5

µ

s

20V

20

Summary of Contents for MVD4540B

Page 1: ...MVD4540B SERVICE MANUAL ORIGINAL MFR S VERSION B Design and specifications are subject to change without notice DVD VIDEO PLAYER VHS VIDEO CASSETTE RECORDER CLASS 1 LASER PRODUCT...

Page 2: ...eals on the cabinet chassis and parts Make sure to keep the indications and notices in the operation manual PERFORM A SAFETY CHECK AFTER SERVICING 4 Confirm that the screws parts and wiring which were...

Page 3: ...move the screw 1 of the Deck Chassis and remove the Loading Motor Refer to Fig 2 Rotate the Pinch Roller Cam in the direction of the arrow by hand to slacken the Video Tape Rotate the Clutch Ass y eit...

Page 4: ...MODULATOR TUNER JACK POWER PRINTED CIRCUIT BOARDS DVD VCR OPERATION VCR SCHEMATIC DIAGRAMS MPEG MICON MEMORY RF AMP DSP AUDIO VIDEO Y C AUDIO CCD HEAD AMP SYSCON TUNER JACK OPERATION DISPLAY HI FI DEM...

Page 5: ...ec PAL Speed NTSC SP SLP Play PAL NTSC SP LP SLP Fast Forward Rewind Time Approx at 25oC FF 1 48 REW 1 48 with Cassette T 120 Forward Reverse NTSC or PAL M SP LP SLP 3x 5x 7x 9x 9x 15x Picture Search...

Page 6: ...dBm 1k ohm DVD 20dBFs 0dBFs 2 0Vrms Digital Output Level 0 5 V p p 75 ohm DVD S N Ratio at Weighted 90dB DVD 42dB VCR at SP Harmonic Distortion 1KHz Typical 0 02 1KHz DVD 1 5 1KHz VCR Frequency Respon...

Page 7: ...el Yes Other Yes OSD Language Set up Language Yes Output RGB Composite No Open Yes Close Yes No disc Yes Reading Yes Play Yes Still Pause Yes Stop Yes Prohibit Mark Yes Step Yes Skip Yes Skip Yes Rand...

Page 8: ...Yes Hi Fi Yes G 11 OSD Language DVD OSD English French Spanish VCR OSD English French Spanish G 12 Clock Timer Calendar 1990 1 1 2081 12 31 and Timer Timer Events 8 Program 1 Month Back up One Touch...

Page 9: ...RN Yes PLAY Yes STOP Yes PAUSE STILL STEP Yes FF Cue SEARCH Yes REW Review SEARCH Yes REC OTR Yes SKIP INDEX Yes SKIP INDEX Yes AUDIO AUDIO SELECT Yes ANGLE COUNTER RESET Yes SUB TITLE ATR Yes PLAY MO...

Page 10: ...SQPB No CATV Yes Energy Star No MTS SAP Yes CM Skip 30sec x 6 Times No Copy Disc to Tape No G 16 Accessories Owner s Manual Language English Spanish w Guarantee Card No Buyer Model No MVD4540B Remote...

Page 11: ...Yes Digital Audio DVD Signal Only Video Input Option No Audio Input Option No RF Input Output Yes Euro Scart No AC Inlet No Indicator LED Power No Rec No T Rec No TV VCR No DVD Yes RED VCR Yes RED Sur...

Page 12: ...the position as shown Fig 1 3 using a soldering If you remove the DVD Deck with no soldering the Laser may be damaged Unlock the support 1 and remove the Deck Top Holder in the direction of arrow A Re...

Page 13: ...ve the screw 1 Remove the FE Head Remove the 3 screws 2 Disconnect the following connectors CP101 CP102 and CP3001 Remove the AC Head Cover and VCR Deck in the direction of arrow 3 VCR PCB 1 4 DVD PCB...

Page 14: ...Locker R 1 2 3 Link Unit 2 4 LINK UNIT Refer to Fig 2 4 Set the Link Unit to the Eject position Unlock the support 1 Remove the A side of the Link Unit first then remove the B side 1 2 3 Fig 2 4 Fig...

Page 15: ...s correct In case of the Loading Motor installation hook the wire on the Cassette Opener as shown Fig 2 6 C When installing the wires between Capstan DD Unit and Loading Motor connect them correctly a...

Page 16: ...oves Refer to Fig 2 9 A Do not adhere the stains on it When you install the reel clean the shaft and grease it FG 84M If you do not grease noise may be heard in FF REW mode After installing the reel a...

Page 17: ...INCH ROLLER BLOCK P5 ARM ASS Y Refer to Fig 2 10 A Unlock the support 1 and remove the Cassette Opener Remove the Pinch Roller Block and P5 Arm Ass y 1 2 Fig 2 10 A 1 Cassette Opener P5 Arm Ass y Pinc...

Page 18: ...e Main Loading Gear Remove the Main Rod Tension Lever Loading Arm S Unit and Loading Arm T Unit 1 Main Rod Main Loading Gear Tension Lever Loading Arm T Unit Loading Arm S Unit Fig 2 16 A 2 14 CAPSTAN...

Page 19: ...Fig 2 18 B Fig 2 18 C Cassette Guide Post Cassette Guide Post 2 17 Remove the Polyslider Washer 1 Remove the Clutch Ass y and Ring Spring Remove the Clutch Lever Remove the Coupling Gear Coupling Spri...

Page 20: ...he disassemble is done If the repair is needed except listed parts replace the DVD MECHA ASS Y NOTE 1 In case of the Main Chassis Ass y install it from 1 to 6 in order Refer to Fig 3 2 B 3 4 Remove th...

Page 21: ...Lever Switch install it correctly as Fig 3 4 C In case of the Lever Switch installation hook the wire on the Main Frame as shown Fig 3 4 D Fig 3 4 B Lever Switch Red White Blue From DVD PCB Fig 3 5 B...

Page 22: ...Main Chassis Ass y 3 8 RELAY PCB ASS Y Refer to Fig 3 8 A Remove the screw 1 Remove the Relay PCB Ass y 1 2 Fig 3 8 A 1 Relay PCB Ass y Main Chassis Ass y NOTE 1 When installing the wire of the Relay...

Page 23: ...1 1 Motor Gear Feed Motor Main Chassis Ass y NOTE 1 2 In case of the Motor Gear installation check if the value of the Fig 3 11 B is correct When installing the Feed Motor check if the cable is positi...

Page 24: ...sing a blower type IC desoldering machine Refer to Fig 4 2 2 Fig 4 2 NOTE Do not add the rotating and the back and forth directions force on the IC until IC can move back and forth easily after desold...

Page 25: ...8 Thin tip Soldering Iron NOTE When the IC leads are bent during soldering and or repairing do not repair the bending of leads If the bending of leads are repaired the pattern may be damaged So be al...

Page 26: ...op Frequency Generator Front Loading Switch Frequency Modulation Frequency Sub Carrier Forward Generator Ground High Pass Filter I K L M N O P R S H SW Hz IC IF IND INV KIL L LED LIMIT AMP LM LDM LP L...

Page 27: ...or Separation Transistor Tracking Trick Playback Test Point Unregulated Volt Voltage Controlled Oscillator Video Intermediate Frequency Vertical Pulse Voltage Display Video Playback Variable Resistor...

Page 28: ...ard Time seconds CH DOWN POWER 2 VCR operation mode at no connection of DVD Refer to the PREPARATION FOR SERVICING NOTE Although the DVD is connected the DVD mode cannot be selected Method Operations...

Page 29: ...er Unit Clean those parts in contact with the tape Clean the rubber and parts which the rubber touches Replace when rolling becomes abnormal Clean the Head T Brake Band Clutch Ass y Idler Arm Ass y C3...

Page 30: ...elow Audio Control Head 2 TAPE RUNNING SYSTEM When cleaning the tape transport system use the gauze moistened with isopropyl alcohol 3 CYLINDER Wrap a piece of chamois around your finger Dip it in iso...

Page 31: ...7 until all data has been checked When satisfied correct DATA has been entered turn POWER off return to STANDBY MODE to finish DATA input After the data input set to the initializing of shipping Turn...

Page 32: ...JG005000 APJG153000 APJG024A00 APJG100A00 Adapter Dial Torque Gauge 10 90gf cm Dial Torque Gauge 60 600gf cm Post Adjustment Screwdriver X Value Adjustment Screwdriver Master Plane Reel Disk Height Ad...

Page 33: ...TENSION POST POSITION 1 2 3 Set to the PLAY mode Adjust the adjusting section for the Tension Arm position so that the Tension Arm top is within the standard line of Main Chassis While turning the S R...

Page 34: ...op mode While unplug the AC cord when the Pinch Roller Block is on the position of Fig 1 4 A Move the Idler Ass y from the T Reel Install the Torque Gauge JG002E and Adapter JG002B on the T reel Turn...

Page 35: ...r Refer to item 2 1 Confirm and adjust the Audio Control Head Refer to item 2 2 Connect CH 1 of the oscilloscope to TP3002 CH 2 to TP101 and CH 3 to HOT side of Audio Out Jack Playback the VHS Alignme...

Page 36: ...T PARTS LOCATION GUIDE 1 2 3 4 5 6 7 8 9 10 1 Tension Connect 2 Tension Arm 3 Guide Roller 4 Audio Control Head 5 X value adjustment driver hole 6 7 8 9 10 P4 Post T Brake Spring T Reel S Reel Adjusti...

Page 37: ...alignment tape JG001P Press and hold the Tracking Auto button on the remote control more than 2 seconds to set tracking to center Press both CH UP button on the set and the STOP button on the set for...

Page 38: ...TION D3 2 DVD PCB CD2301 CD2001 CD2302 VCR PCB CP4002 CP8102 CP2601 CP2603 CP2602 J8101 OS8101 J8103 SW8101 J8102 AC IN CD501 CP501 CP8002 TP3001 CP102 AC HEAD CD102 TP8001 CP103 FE HEAD TP101 TP3002...

Page 39: ...RFA_SDEN DATA SCLK EEPROM IC4002 AT24C04N 10SI 2 7 CP4002 RF AAF_CE FE TE PI FNN FNP VBIASS0 S1 DEFECT LINK MIRR LDON HOME TIN SW TOUT SW TR FO SPDL SLED SPINDLE SLED_PWM TRACK FOCUS_DAC ADC IN 5 6 7...

Page 40: ...MIX SYNC SEP VCA CLAMP 1 2 FBC Chara INS 6dB P R P R V AGC L101 CLAMP EQ AMP LINE AMP MUTE ALC Y C_CS Y C_DATA Y C_CLK H AMP_SW C ROTARY H SW ENV DET COMP DUMMY_V SYNC C SYNC FRONT_V_IN TU REAR_V_IN...

Page 41: ...VCR SDA SCL KEY B REM_IN AFT S CURVE CTL CTL TAB SW 35 TAB SW RESET 77 1 2 IC3003 PST3231NR AT 5V SYSTEM RESET 5 6 EEP ROM IC3099 AT24C04N 10SI 2 7 Y C DATA 54 Y C CLK 53 Y C_DATA Y C_CLK C SYNC 111...

Page 42: ...4G SW Q654 SEG8 SW Q655 Q656 Q657 Q658 3G SW Q659 Q660 2G SW Q661 Q662 Q663 Q664 1G SW Q665 SEG7 SW SEG1 SW SEG3 SW SEG2 SW SEG4 SW SEG5 SW SEG6 SW 4G VSC_LED SEG9 SEG7 SEG8 SEG5 SEG6 SEG4 3G TV VCR_...

Page 43: ...SCL SDA AUDIO_OUT_R ST_SELECT FRONT_A_IN L FRONT_A_IN R HF2 HF_COM FSC HF1 FROM_NORMAL_A TO_NORMAL_A TUNER JACK SYSCON Y C AUDIO CCD HEAD AMP 51 58 40 P CON 12V P CON 5V INPUT SW AMP AMP RFC OUTPUT SW...

Page 44: ...R Q8006 MUTE SW SIF_OUT 10 SCL 11 SDA 12 17 14 AFT S CURVE POWER_MUTE_L 2 2 AUDIO L J8004 AUDIO R J8005 SYSCON 3 VIDEO_MUTE_H 15 32V Q8003 VIDEO MUTE SW 4 1 AV SW IC8005 MM1501XNRE 6 2 3 Q8005 MUTE SW...

Page 45: ...31 PROTECT Q503 P CON 5V SW Q506 M CON POWER SW Q504 M CON 5V SW Q507 3 3V CTL AT 12 6V OPERATION DISPLAY TUNER JACK P CON 5V P CON 12V AT 5 2V POWER FAIL VCR POWER ON L AT 5V M CON DVD POWER CTL 32V...

Page 46: ...C2625 R2616 C8113 Q2602 C7302 R4049 J8103 R4042 Q2604 R2625 Q2601 C8102 W857 C8137 C2304 R2607 C4007 C4039 C4035 CP4002 C2605 R2614 IC2301 R8110 D8106 C4079 B2602 D8113 CP2601 R8104 R4012 B2601 C4021...

Page 47: ...HS501 Q501 R516 C540 C511_2 I C 5 0 3 B501 C513 D509 R512 C515 R502 C 5 2 5 S501 S502 FH501 F501 FH502 L501 C502 R 5 0 1 D503 D505 D502 D506 D510 R506 W016 D530 C528 D531 R508 D504 D524 Q502 C509 R504...

Page 48: ...5_1 C158 C108 R106 C114 R711 R712 C721_1 R139 R138 R664 C3027 C3065 R3047 R3046 R3062 C3050 R3033 C3053 C3020 C3008 R3003 R3057 C3017 R707 C155 R3016 R3006 R3056 C3061 R3044 R3045 R105 R718 R8010 C301...

Page 49: ...UTE SMUTE HA14 TRACK_DAC HA15 HA10 FOCUS_DAC HA16 HD14 SPINDLE_PWM HA17 SLED_PWM HA9 HA18 P CON A5V HD6 RESET HA19 P CON 3 3V HA20 HA8 P CON 9V HD0 HD13 P CON 5V HD1 ADCIN_7 HD5 HD2 ADCIN_6 HA20 HOME...

Page 50: ...HD12 HA20 SD_D15 SD_D9 SD_D6 RAMCS0 RAMCS1 HD4 WR RAMRAS RAMCAS SD_D8 SD_D7 SD_BA0 RESET RAMDQM RAMWE RAMCLK HD11 RAMDQM HA0 HA1 RAMDQM RAMWE HA2 HD3 HA3 RAMCLK RAMCAS HA4 HA5 HD10 HA19 RAMRAS HA6 HA7...

Page 51: ...B C2611 0 1 F C2639 0 1 F C2638 0 1 F C2618 0 1 B C2633 0 001 B C2627 0 033 B C2620 0 0056 B C2621 0 0056 B C2622 0 0056 B C2623 0 1 F C2635 0 001 B C2619 560P CH C2311 0 1 B C2306 0 1 F C2301 0 1 F C...

Page 52: ...1K R8129 10K R8116 10K R8115 470 R8113 56 R8132 3 3K R8137 100K R8131 1 5K R8130 2 2K R8123 4 7K R8133_1 220 R8134 470 R8111 10K R8114 1K R8151 10K R7307 10K R7306 10K R8118 1K R8136 68 C8120 220P CH...

Page 53: ...5 6 CP101 TOC C09X A1 1 2 3 4 5 6 7 8 9 Q103 KRA103SRTK SW CAUTION DIGITAL TRANSISTOR CD102 2H061504 FFC C140 4 7 50V KANP CP103 B2013H02 2P 1 2 PLAYBACK VIDEO SIGNAL COMP H SW ENV DET P CON 5V H AMP_...

Page 54: ...TV VCR SEG_1 Y C_CLK 4FSC POWER_MUTE L Y C_DATA SYS_MUTE Y C_CLK RF_CH_SW 5G CS BS_LED SW_V_OUT 4G VSC_LED AV_SW1 3G TV VCR_LED SCL AV_SW1 2G DUB REC_LED SDA Y C_CS 1G VCR T REC_LED AFT S CURVE CAP_F...

Page 55: ...470 R8010 75 R302 1K R304 10K R8059 4 7K 1 4W R301 33K C8099 470P CH C8004 470P CH C307 100P CH C308 0 01 B C301 0 01 F C303 0 1 F C8014 0 1 F C8057 0 1 F C309 220 6 3V YK C318 10 16V KA C8075 4 7 50V...

Page 56: ...R668 180 R672 180 R671 820 R667 180 R670 180 R661 820 R666 180 R665 180 R669 820 R664 820 R673 180 R662 180 R675 820 R674 180 R683 560 C652 100 6 3V YK OF PRINTING AND SUBJECT TO CHANGE WITHOUT NOTIC...

Page 57: ...CE NOTE THIS SCHEMATIC DIAGRAM IS THE LATEST AT THE TIME DURING PLAYBACK MEASURED WITH THE DIGITAL TESTER NOTE THE DC VOLTAGE EACH PART WAS FSC SIF_OUT SCL SDA P CON 5V AUDIO_MUTE H FRONT_A_IN_L FRONT...

Page 58: ...Y_RTK PROTECT C505_1 100 16V YK C521 100 16V YK C510_1 22 50V YK C522_1 22 50V YK C530_1 100 16V YK C504_1 220 6 3V YK R537 220 R533 220 1 4W R517 820 1 2W R501 3 3M 1 2W 10 R507 10K R525 10K R509 100...

Page 59: ...A 9604S 05Z13 1 2 3 4 5 R689 3 3K 1 4W R690 22K 1 4W R688 2 7K 1 4W R687 3 9K 1 4W R686 6 8K 1 4W R685 13K 1 4W OF PRINTING AND SUBJECT TO CHANGE WITHOUT NOTICE NOTE THIS SCHEMATIC DIAGRAM IS THE LATE...

Page 60: ...KEY A KEY B GND DVD LED OPERATION PCB NC NC NC V OUT V IN CONTROL B CH A IN NC NC Vref MON DVD VOL DVD GND DVD LD DVD LD CD VOL CD GND CD MON COM RF C B A D F E VCC GND PDIC F F T T Vref MON DVD VOL D...

Page 61: ...n the schematic diagram NOTE 1 2 3 4 7 6 MPEG MICON 8 5ns 20mV RF AMP DSP MEMORY 200ns 10mV 10ns 100mV 200ns 20mV 500 s 100mV 200ns 20mV 10 s 100mV Y C AUDIO CCD HEAD AMP 16 PB 10 s 500mV 17 PB 100ns...

Page 62: ...POWER ON 50ns 1 0V 23 PB 5ms 2 0V 27 PB 10ms 1 0V 28 10 s 200mV 32 TUNER JACK The following waveforms were measured at the point of the corresponding balloon number in the schematic diagram NOTE SYSC...

Page 63: ...113 209 125 I1 1 105 104 103 106 203 103 113 102 106 114 204 121 123 115 PCB010 VCR PCB ASS Y 124 203 126 PCB270 OPERATION PCB ASS Y 117 206 206 206 206 206 207 108 109 107 116 203 203 203 122 205 20...

Page 64: ...7 300 317 336 346 345 319 320 AB 316 318 347 AB AB AB AA AA AA AA AB AB AB AB AC AC CD1501 M101 304 CD1502 510 348 Applying positions AA AB AC AD and AE for the grease are displayed for this section C...

Page 65: ...AD AA AA AA AA AA CD1501 CD1502 AA 339 AA AA I2 2 Applying positions AA AB AC AD and AE for the grease are displayed for this section Check if the correct grease is applied for each position NOTE PART...

Page 66: ...18 615 AC AC AA AA AC Applying positions AA AB AC and AD for the grease are displayed for this section Check if the correct grease is applied for each position NOTE CLASS MARK GREASE G 555G AA G 337F...

Page 67: ...115 752WUAA001 SHIELD 3PIN 116 761WSA0127 ANGLE FRONT 117 702WSB0086 CABINET TOP 118 712WPB0162 PLATE TRAY FRONT 119 761WSA0130 ANGLE DVD 120 7235630001 SHEET DVD NEW 121 761WPA0262 HOLDER DECK TOP 1...

Page 68: ...E VTR 1X2ERS11 154 314 85OA400235 TENSION ARM ASS Y 2 M101 1596P98001 MOTOR LOADING MXN13FB12K3 or 315 85OA400231 INCLINED BASE S UNIT 1596S98001 MOTOR LOADING MDB2B66 316 85OP800367 SPRING LOCKER M20...

Page 69: ...17 92P100082A CLAMPER 2 618 92P300002A SPRING RACK LOADING 619 92P400002A MAGNET CLAMPER 620 92P100030A GEAR IDLER 621 92P100025A GEAR MOTOR 622 92P100083A GEAR MIDDLE 1 623 92P100027A GEAR MIDDLE 2 7...

Page 70: ...D1VT001330 DIODE SILICON 1SS133T 77 Q509 TNAAC05002 COMPOUND TRANSISTOR KRC103SRTK D526 D97U03R31B DIODE ZENER MTZJ3 3B T 77 Q510 TCAT032034 TRANSISTOR SILICON KTC3203_Y AT D528 D1VT001330 DIODE SILIC...

Page 71: ...T0009 HOLDER FUSE EYF 52BCY or L4001 02167F2R2J COIL 2 2 UH 06710T0006 HOLDER FUSE EYF 52BC L8004 0216A6470K COIL 47 UH FH502 06710T0009 HOLDER FUSE EYF 52BCY or L8101 02167F1R0K COIL 1 UH 06710T0006...

Page 72: ...SPEC NO M2C5 10H O R NO K3Z2007...

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