Samsung VR3040 Service Manual
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Samsung VR3040 Service Manual

Samsung VR3040 Service Manual

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ELECTRONICS
© Samsung Electronics Co., Ltd. MAY. 2000
Printed in Korea
AC68-00988A
VIDEO CASSETTE RECORDER
VR3040
SERVICE
For mechanical disassembly and adjustment, refer to the "Mechanical Manual" (DX-9R
VIDEO CASSETTE RECORDER
SAMTRON
POWER
F .F
STOP
REW
EJECT
PLAY
POWER
REC
Manual
AC68-00001A).
CONTENTS
1. Precautions
2. Alignment and Adjustment
3. Exploded View and Parts List
4. Electrical Parts List
5. Schematic Diagrams

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Summary of Contents for Samsung VR3040

  • Page 1 CONTENTS 1. Precautions ELECTRONICS 2. Alignment and Adjustment 3. Exploded View and Parts List 4. Electrical Parts List 5. Schematic Diagrams SAMTRON POWER F .F STOP EJECT PLAY POWER © Samsung Electronics Co., Ltd. MAY. 2000 Printed in Korea AC68-00988A...

  • Page 2: Important Service Guide

    IMPORTANT SERVICE GUIDE ◆ MODE SWITCH (PROGRAM SWITCH) ASSEMBLY POINT 1) When installing the ass’y full deck on the Main PCB, be sure to align the assembly point of mode switch. ASSEMBLY POINT Fig. 1 ◆ HOW TO EJECT THE CASSETTE TAPE (If the unit does not operate on condition that tape is inserted into housing ass’y) 1) Remove the Holder Worm Œ...
  • Page 3 Alternatively, wear a discharging Wrist-strap device. (Be sure to remove it prior to applying power--this is an electric shock precaution.) Samsung Electronics...
  • Page 4 Always inspect for pinched, out- of-place, or frayed wiring. Do not change the spacing between components and the printed circuit board. Check the AC power cord for damage. Make sure that leads and components do not touch thermally hot parts. Samsung Electronics...

  • Page 5: Alignment And Adjustment

    3) When replacing the cylinder ass’y, be sure to adjust the “X-Point” and “Head switching adjustment”. 4) Among Samsung VCR remote control used for adjustment as a accessory, only the remote control that has figures buttons (0 ~ 9) is available for all adjustment regardless of chassis.

  • Page 6: Short Circuit

    Alignment and Adjustment 2-1-2 Test point location for adjustment mode setting Short-Circuit Fig. 2-2 Main PCB (Bottom View) Samsung Electronics...

  • Page 7: Mechanical Adjustment

    2) Intermittently short-circuit the two test points on 6) Turn the Power off. Main PCB to set the adjustment mode. (See Fig. 2-2) 3) Press the “5” button of remote control then adjust- ment is operated automatically. (See Fig. 2-1) Samsung Electronics...

  • Page 8: Head Switching Point Adjustment

    33 34 35 36 37 38 39 40 33 34 35 36 37 38 39 40 MOVE : MOVE : save SAVE : MENU SAVE : MENU Fig. 2-4 Fig. 2-5 <Table 2-1> MODEL OPTION NUMBER VR3040 1, 6, 7, 12, 20, 30, 36, 38 Samsung Electronics...

  • Page 9: Exploded View And Parts List

    3-2 Mechanical Parts (Top Side) - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 3-3 Mechanical Parts (Bottom Side) - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Samsung Electronics...

  • Page 10: Cabinet Assembly

    Exploded View and Parts List 3-1 Cabinet Assembly Samsung Electronics...
  • Page 11 Exploded View and Parts List Loc. No Parts No. Description ; Specification Remark AC97-01076A ASSY-PANEL FRONT;HIPS94V2,VR3040/XAA,D/G AC64-00291C DOOR-CASSETTE;-,ABS94HB ,-,-,-,D/GRAY,-, AC61-62032A SPRING-MASK;X-9,-,SUS,-,4.4,-,SV-C130 AC64-30891A CABINET-TOP;SP-A12T,SECC,PCM,0.625,320*2 AC60-12126A SCREW-BH;-,BH,-,4*12,FE,FZY,-,-,- AC60-12134A SCREW-TAP BH;-,BH,-,2-4X16,-,FE AC60-10063A SCREW-TAPTITE;BH,+,-,M3,L12,ZPC3,SWRCH18 AC39-10200N POWER-CORD;EP2,SPT-2,AWG#18,1.8MT,WAFER, CN303B 3809-001110 CABLE-FLAT;30V,80C,150mm,7P,1.25mm,UL289 CN605B 3809-001112 CABLE-FLAT;30V,80C,130mm,5P,1.25mm,UL289 LD601A AC61-21009A HOLDER-LED;-,POM(M90-44),-,BLK,-,X-9...

  • Page 12: Mechanical Parts (Top Side)

    Exploded View and Parts List 3-2 Mechanical Parts (Top Side) Samsung Electronics...
  • Page 13 LEVER-TENSION ASSY;-,X-9(TS),-,-,-,X-9 K248 AC61-60554A SPRING-TENSION LEVER;-,ES,SUS304-WPB,OD3 K250 AC63-12029A BAND-BRAKE ASSY;-,X-9(TS),-,-,-,X-9 K330 AC66-30550A LEVER-S.BRAKE ASSY;-,POM+SUS,-,-,-,X-9 K340 AC66-30549A LEVER-T.BRAKE ASSY;-,POM+SUS,-,-,-,X-9 K350 AC61-60564A SPRING-BRAKE;-,TENSION,SWP-A,0.25,3,-,X- K490 AC61-21010B HOLDER-CASS ASSY;-,SECC+POM+SUS,-,-,SEIN K502 AC61-60561A SPRING-FL.LEVER-LR;-,ES,SUS304 WPB,PI2.7 K530 AC66-30546A LEVER-FL.ARM ASS’Y;-,SECC+POM+SUS,-,-,-, K546 AC61-50658A GUIDE-CASS. DOOR;-,POM M90-44,-,-,NTR,-, Samsung Electronics...

  • Page 14: Mechanical Parts (Bottom Side)

    Exploded View and Parts List 3-3 Mechanical Parts (Bottom Side) Samsung Electronics...
  • Page 15 B488 AC66-30543A LEVER-S LOAD ASSY;-,-,-,-,-,X-9 B500 AC66-30542A LEVER-T LOAD ASSY;-,-,-,-,-,X-9 B560 AC31-12017A MOTOR-CAPSTAN;DMVCMC07C,-,X-9 B570 AC60-10514A SCREW-CAPSTAN;-,PH,+,M2.6,L6,- G542 AC66-60051A BELT-PULLEY;-,5CM-70,2 * 2,-,71.3,-,X-9 K200 AC61-21012A HOLDER-CLUTCH ASSY;-,-,-,-,-,X-9 K221 AC66-20581A GEAR-CENTER ASSY;-,POM,M=O.5,-,HIGHT T., K222 AC60-30306A WASHER-SLIT;-,-,ID2.1,OD5.0,T0.5,-,POLYS K225 AC66-30547A LEVER-UP DOWN ASSY;-,POM+SUS,-,-,-,X-9 Samsung Electronics...
  • Page 16 Exploded View and Parts List MEMO Samsung Electronics...

  • Page 17: Electrical Parts List

    R1SS12 2003-000994 R-METAL OXIDE(S);33Kohm,5%,2W,AF,TP,3.9x C611 2401-000922 C-AL;22uF,20%,16V,GP,TP,5x5,5 R1SS13 2003-000148 R-METAL OXIDE;100OHM,5%,2W,AE,TP,6X16MM C612 2401-002299 C-AL;4.7uF,20%,50V,GP,TP,5x7,5 R1SS32 2001-000429 R-CARBON;1KOHM,5%,1/8W,AA,TP,1.8X3.2MM C613 2203-000429 C-CERAMIC,CHIP;0.018nF,5%,50V,NP0,TP,201 R1SS33 2004-000869 R-METAL;3Kohm,1%,1/8W,AA,TP,1.8x3.2mm C614 2203-000925 C-CERAMIC,CHIP;470NF,+80-20%,50V,Y5V,TP, R1SS34 2004-000459 R-METAL;2.2Kohm,1%,1/8W,AA,TP,1.8x3.2m C615 2202-000121 C-CERAMIC,MLC-AXIAL;100pF,10%,50V,Y5P,TP VA1SS1 1405-001026 VARISTOR;470V,600A,9x7mm,TP C616 2203-000260 C-CERAMIC,CHIP;10nF,10%,50V,X7R,TP,2012 Samsung Electronics...
  • Page 18 R609 2007-000300 R-CHIP;10KOHM,5%,1/10W,DA,TP,2012 R6100 2001-000633 R-CARBON;30KOHM,5%,1/8W,AA,TP,1.8X3.2MM AUDIO/VIDEO PARTS R611 2001-000429 R-CARBON;1KOHM,5%,1/8W,AA,TP,1.8X3.2MM C301 2203-000476 C-CERAMIC,CHIP;1000nF,+80-20%,16V,Y5V,TP R6111 2007-000468 R-CHIP;1KOHM,5%,1/10W,DA,TP,2012 C302 2401-002095 C-AL;47uF,20%,25V,GP,TP,6.3x5,5 R612 2007-000468 R-CHIP;1KOHM,5%,1/10W,DA,TP,2012 C303 2203-000192 C-CERAMIC,CHIP;100nF,+80-20%,50V,Y5V,TP, R613 2001-000786 R-CARBON;47KOHM,5%,1/8W,AA,TP,1.8X3.2MM C304 2203-001721 C-CERAMIC,CHIP;360pF,5%,50V,NPO,TP,2012, R614 2007-000380 R-CHIP;13KOHM,5%,1/10W,DA,TP,2012 C305 2401-001250 C-AL;4.7uF,20%,35V,GP,TP,4x5,5 Samsung Electronics...
  • Page 19 2007-000757 R-CHIP;330KOHM,5%,1/10W,DA,TP,2012 CN301 3708-000395 CONNECTOR-FPC/FC/PIC;8P,1.25MM,STRAIGHT, R356 2007-000565 R-CHIP;220KOHM,5%,1/10W,DA,TP,2012 CN302 3711-002445 CONNECTOR-HEADER;BOX,2P,2R,1.5MM,STRAIGH R357 2007-000565 R-CHIP;220KOHM,5%,1/10W,DA,TP,2012 CN303 3708-001302 CONNECTOR-FPC/FC/PIC;7P,1.25mm,STRAIGHT, R358 2001-000008 R-CARBON;15KOHM,5%,1/8W,AA,TP,1.8X3.2MM D301 0401-000101 DIODE-SWITCHING;1N4148,100V,200mA,DO-35, R359 2007-000738 R-CHIP;30KOHM,5%,1/10W,DA,TP,2012 D302 0401-000101 DIODE-SWITCHING;1N4148,100V,200mA,DO-35, R360 2001-000977 R-CARBON;8.2KOHM,5%,1/8W,AA,TP,1.8X3.2M D307 0401-000101 DIODE-SWITCHING;1N4148,100V,200mA,DO-35, R361 2007-000964 R-CHIP;5.1KOHM,5%,1/10W,DA,TP,2012 Samsung Electronics...
  • Page 20 D740 0401-000101 DIODE-SWITCHING;1N4148,100V,200mA,DO-35, R741 2007-000941 R-CHIP;47KOHM,5%,1/10W,DA,TP,2012 R744 2001-000734 R-CARBON;4.7KOHM,5%,1/8W,AA,TP,1.8X3.2M SW703 3404-000165 SWITCH-TACT;12V,50mA,160gf,6x6mm,SPST SW704 3404-000165 SWITCH-TACT;12V,50mA,160gf,6x6mm,SPST SW706 3404-000165 SWITCH-TACT;12V,50mA,160gf,6x6mm,SPST SW707 3404-000165 SWITCH-TACT;12V,50mA,160gf,6x6mm,SPST SW709 3404-000165 SWITCH-TACT;12V,50mA,160gf,6x6mm,SPST SW710 3404-000165 SWITCH-TACT;12V,50mA,160gf,6x6mm,SPST LED PCB C7L01 2401-002165 C-AL;100uF,20%,16V,GP,TP,6.3x7,5 C7L02 2202-000797 C-CERAMIC,MLC-AXIAL;10NF,30%,16V,Y5S,TP, C7L03 2202-000173 C-CERAMIC,MLC-AXIAL;1nF,10%,50V,Y5P,TP,1 Samsung Electronics...
  • Page 21 5-6 Remote-Control - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Samsung Electronics...

  • Page 22: Block Identification Of Main Pcb

    Important safety notices : Components identified with the mark have the special characteristics for safety. When replacing any of these components. Use only the same type. ◆ Block Identification of Main PCB Samsung Electronics...
  • Page 23 Schematic Diagrams 5-1 S.M.P.S./Power Samsung Electronics...
  • Page 24 Schematic Diagrams 5-2 Logic Samsung Electronics...
  • Page 25 Schematic Diagrams 5-3 Audio/Video Samsung Electronics...
  • Page 26 Schematic Diagrams 5-4 TM-Block/Input-Ouput Samsung Electronics...
  • Page 27 Schematic Diagrams 5-5 Display Samsung Electronics...
  • Page 28 Schematic Diagrams 5-6 Remote-Control Samsung Electronics...
  • Page 29 DX-9R Manual MECHANICAL 3 File with the SERVICE MANUAL. VHS DECK CONTENTS 1. Disassembly and Reassembly ELECTRONICS 2. Alignment and Adjustment © Samsung Electronics Co., Ltd. NOV. 1998 Printed in Korea AC68-00001A...

  • Page 30: Disassembly And Reassembly

    ¨ Ø ∏ Fig. 1-1 Top parts Location-1 Œ BRACKET FL TOP ´ GEAR FL CAM ˇ MOTOR LOADING ASS’Y ¨ LEVER FL ARM ASS’Y ˆ HOLDER FL CASSETTE ASS’Y Ø LEVER FL DOOR ∏ SLIDER FL DRIVE Samsung Electronics...
  • Page 31 Ò GEAR IDLE ¨ PLATE CYLINDER B Ú LEVER IDLE ˆ PLATE CYLINDER A Æ LEVER T BRAKE ASS’Y Ø ACE HEAD ASS’Y ı DISK T REEL ∏ UNIT PINCH ASS’Y ” LEVER #9 GUIDE ASS’Y ’ LEVER TENSION ASS’Y Samsung Electronics...

  • Page 32: Bottom View

    ´ GEAR JOINT 2 ˇ BRAKET GEAR ¨ MOTOR CAPSTAN ASS’Y ˆ LEVER T LOAD ASS’Y Ø GEAR LOADING DRIVE ∏ LEVER S LOAD ASS’Y ” HOLDER CLUTCH ASS’Y ’ BELT PULLEY ˝ SLIDER CAM Ô SLEEVE TENSION Samsung Electronics...

  • Page 33: Lever Fl Door Removal

    Note : Take care not to change assembly direction. in the direction of arrow ÒBÓ. Œ 2 SCREWS Œ LEVER FL DOOR ´ BRACKET FL TOP "A" "B" ´ HOOK Fig. 1-5 Lever FL Door Removal Fig. 1-4 Bracket FL Top Removal Samsung Electronics...

  • Page 34: Holder Fl Cassette Ass'y Removal

    ´ BOSS ˇ SLIDER FL DRIVE "B" BOSS [B] Fig. 1-7 Lever FL Arm Ass’y Removal RAIL [C] Œ HOLDER FL RAIL [D] CASSETTE ASS'Y ´ LEVER FL CASSETTE-R "A" BOSS [A] Fig. 1-6 Holder FL Cassette Ass’y Removal Samsung Electronics...
  • Page 35 GEAR FL CAM Œ SCREW ´ BRACKET GEAR ˆ GEAR JOINT 1 ¨ GEAR JOINT 2 Œ SLIDER FL DRIVE Fig. 1-9 Bracket Gear, Gear FL Cam, Gear Joint 1, 2 Fig. 1-8 Slider FL Drive Removal Removal Samsung Electronics...
  • Page 36 TIMING POINT 2 ˇ GEAR WORM WHEEL ¨ GEAR FL CAM Fig. 1-11 Holder Worm, Gear Worm, Gear Worm Wheel Removal POST GEAR WORM WHEEL TIMING POINT 3 Fig. 1-10 Assembly of Gear FL Cam, Gear Joint 1,2 Samsung Electronics...

  • Page 37: Motor Loading Ass'y Removal

    Œ GEAR LOADING DRIVE HOOK [A] ´ SLIDER CAM ˇ LEVER T LOAD ASS'Y ¨ LEVER S LOAD ASS'Y Œ SCREW Fig. 1-12 Motor Loading Ass’y Removal Fig. 1-13 Gear Loading Drive, Slider Cam, Lever T, S Load Ass’y Removal Samsung Electronics...
  • Page 38 PIN A PIN C PIN D PIN B ˇ SLIDER CAM Fig. 1-14 Assembly of Gear Loading Drive, ´ SLEEVE TENSION Slider Cam, Lever T, S Load Ass’y Fig. 1-15 Lever Tension Ass’y, Band Brake Ass’y, Sleeve Tension Removal Samsung Electronics...
  • Page 39 ˇ SPRING BRAKE ´ GEAR IDLE "B" HOOK [C] ´ GEAR IDLE ´ LEVER T BRAKE ASS'Y Œ LEVER S BRAKE ASS'Y HOOK [B] Fig. 1-17 Lever Idle Ass’y Removal Fig. 1-16 Lever S, T Brake Ass’y Removal 1-10 Samsung Electronics...

  • Page 40: Disk S, T Reel Removal

    1) Remove the Washer Slit Œ. 2) Lift the Holder Clutch AssÕy ´. Œ DISK S REEL Œ WASHER SLIT ´ DISK T REEL ´ HOLDER CLUTCH ASS'Y Fig. 1-18 Disk S, T Reel Removal Fig. 1-19 Holder Clutch Ass’y Removal Samsung Electronics 1-11...
  • Page 41 Œ LEVER UP DOWN ASS'Y ¨ RING ˇ GEAR ∏ HOOK 35˚ Ø POST MAIN BASE Fig. 1-21 Assembly of Lever Up Down Ass’y, Gear Center Ass’y Fig. 1-20 Lever Up Down Ass’y, Gear Center Ass’y Removal 1-12 Samsung Electronics...

  • Page 42: Guide Cassette Door Removal

    2) When reinstalling, be sure to apply grease on the post pinch roller. HOOK [A] ´ PLATE JOINT Œ UNIT PINCH ASS'Y ˇ SPRING PINCH DRIVE Fig. 1-22 Guide Cassette Door Removal Fig. 1-23 Unit Pinch Ass’y, Plate Joint, Spring Pinch Drive Removal Samsung Electronics 1-13...

  • Page 43: Fe Head Removal

    2) After reinstalling, check the bottom side of the Post #9 Guide to stick to the top side of Main Base. ´ LEVER #9 GUIDE ASS'Y Œ SPRING #9 GUIDE Fig. 1-25 FE Head Removal Fig. 1-24 Lever #9 Guide Ass’y Removal 1-14 Samsung Electronics...

  • Page 44: Ace Head Removal

    2) Remove the screw Œ. 3) Lift the ACE Head AssÕy ´. Œ SLIDER S ASS'Y Œ SCREW ´ SLIDER T ASS'Y ´ ACE HEAD ASS'Y Fig. 1-27 Slider S, T Ass’y Removal Fig. 1-26 ACE Head Removal Samsung Electronics 1-15...

  • Page 45: Belt Pulley Removal

    1-2-27 Lever Head Cleaner Ass’y Removal (Optional) 1) Release the Hook Œ. 2) Lift the Lever Head Cleaner AssÕy ´. ´ LEVER HEAD CLEANER ASS'Y Œ HOOK Fig. 1-28 Cylinder Ass’y Removal Fig. 1-30 Lever Head Cleaner Ass’y Removal 1-16 Samsung Electronics...

  • Page 46: Motor Capstan Ass'y Removal

    4) Rotate Gear Worm Wheel ˇ counterclockwise using screw driver again up to the state of eject mode and then pick out the tape. (Refer to Fig. 1-32) ´ MOTOR CAPSTAN ASS'Y Fig. 1-31 Motor Capstan Ass’y Removal FRAME Fig. 1-33 Samsung Electronics 1-17...
  • Page 47 CAPSTAN MOTOR PULLEY BELT PULLEY ∆ HOLDER CLUTCH ASS’Y GEAR CENTER ASS’Y GEAR IDLE (2Point) LOADING MOTOR BAND BRAKE ASS’Y BRAKE T ASS’Y Æ : Cleaning O : Check and replacement in necessary 3 : Add Oil 1-18 Samsung Electronics...

  • Page 48: Tape Transport System And Adjustment Locations

    Fig. 2-1 Location of Tape Transport Adjustment FE HEAD CYLINDER ASS'Y PINCH ROLLER GUIDE ROLLER "S" GUIDE ROLLER "T" POST TENSION #8 GUIDE POST #9 GUIDE POST MAIN BASE ACE HEAD CAPSTAN SHAFT #3 GUIDE POST Fig. 2-2 Tape Travel Diagram Samsung Electronics...

  • Page 49: Tape Transport System Adjustment

    1) See page 5-1 of the Service Manual for ACE Head position (X-Point) adjustment. Fig. 2-3 Location of ACE Head Adjustment Screw AUDIO HEAD VIDEO HEAD 0 ~ 0 .25 mm CONTROL HEAD Fig. 2-4 ACE Head Height Adjustment Samsung Electronics...
  • Page 50 ) driver to obtain a flat video RF envelope as shown in Fig. 2-8. IDEAL ENVELOPE S HEIGHT S HEIGHT T HEIGHT T HEIGHT TOO HIGH TOO LOW TOO HIGH TOO LOW GUIDE ROLLER T GUIDE ROLLER S Fig. 2-8 Guide Roller S, T Height Adjustment Samsung Electronics...

  • Page 51: Reel Torque

    145 ± 30 Cassette Torquemeter 4) Transportation of accurate driving force is done by gears. (Gear Center AssÕy) Note : If the spec. does not meet the followings speci- fications, replace the holder clutch assÕy and then recheck. Samsung Electronics...
  • Page 52 Fig. 2-13 Tension Pole and Back Tension Adjustment Note : 1) Mark on Main Base is located in about 1.3mm from inside of bending line. 2) Be careful not to deform the region of adjusting on Main Base up and down at adjusting. Samsung Electronics...
  • Page 53 Alignment and Adjustment MEMO Samsung Electronics...

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