Samsung SV-425G Service Manual

Samsung SV-425G Service Manual

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ELECTRONICS
© Samsung Electronics Co., Ltd. DEC. 1998
Printed in Korea
AC68-00112A
VIDEO CASSETTE RECORDER
SV-425G/224G/223G
SV-425B/225B/220B
SV-425I/223I
SV-425X/220X
SV-C30G/SV-6C/5C
SV-A80G(HCII)/A70G(HCII)/A11G(HCII)
SV-122G/121G/120G/100G/C12K
SVR-425/423/420/223/220/121/120
SERVICE
For mechanical disassembly and adjustment, refer to the "Mechanical Manual" (DX-9R
VIDEO CASSETTE RECORDER
EJECT
POWER
PROG
REC STOP
PLAY
LINE IN 2
VIDEO AUDIO
SV-425G/425B/225B/425X/SVR-425/423/SV-A80G(HCII)
EJECT
POWER
REW
F.F
PROG
REC
STOP
SV-224G/223G/425I/C30G/SVR-420/223/220//SV-A70G(HCII)
EJECT
STOP
POWER
PLAY
REC
REW F.F
SV-220B/220X/122G/100G/C12K/SVR-120/SV-5C
POWER
EJECT
STOP
REC
SV-223I/121G/SVR-121/SV-A11G(HCII)/SV-6C
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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Table of Contents
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Summary of Contents for Samsung SV-425G

  • Page 1 3. Exploded View and Parts List SV-425G/425B/225B/425X/SVR-425/423/SV-A80G(HCII) 4. Electrical Parts List EJECT POWER 5. Schematic Diagrams PROG STOP SV-224G/223G/425I/C30G/SVR-420/223/220//SV-A70G(HCII) EJECT STOP POWER PLAY REW F.F SV-220B/220X/122G/100G/C12K/SVR-120/SV-5C POWER EJECT STOP © Samsung Electronics Co., Ltd. DEC. 1998 SV-223I/121G/SVR-121/SV-A11G(HCII)/SV-6C Printed in Korea AC68-00112A...
  • Page 2: Important Service Guide

    IMPORTANT SERVICE GUIDE 3 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 3 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 Alignment and Adjustment 2-1-2 SW718 (TEST) location for adjustment mode setting PRESS Fig. 2-2 Main PCB (Top View) Samsung Electronics...
  • Page 7: Mechanical Adjustment

    2) Press the ÒSW718 (TEST)Ó button on Main PCB to 6) Turn the Power off. set the adjustment mode. (See Fig. 2-2) 3) Press the Ò5Ó button of remote control then adjustment is operated automatically. (See Fig. 2-1) Samsung Electronics...
  • Page 8 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 41 42 43 44 45 46 47 48 PLEASE WAIT PLEASE WAIT CNG : SAVE : OK CNG : SAVE : MENU Fig. 2-6 (VCR) Fig. 2-7 (VCP) Samsung Electronics...
  • Page 9 COUNTRY MODELS OPTION NUMBER U.A.E. SV-425G 6, 8, 11, 12, 17, 18, 20, 25, 26, 30, 31, 32, 35, 42, 45, 46, 48 SV-224G 6, 8, 11, 17, 18, 20, 25, 26, 30, 31, 32, 35, 39, 40, 42, 48...
  • Page 10 Alignment and Adjustment MEMO Samsung Electronics...
  • Page 11: Exploded View And Parts List

    3-2 Mechanical Parts (Top Side) - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 3-3 Mechanical Parts (Bottom Side) - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Samsung Electronics...
  • Page 12: Cabinet Assembly

    Exploded View and Parts List 3-1 Cabinet Assembly Samsung Electronics...
  • Page 13 CABLE-FLAT;30V,80C,130mm,5P,1.25mm,UL289 (OPTIONAL) LD601A AC61-21009A HOLDER-LED;-,POM(M90-44),-,BLK,-,X-9 S601A AC61-21008A HOLDER-SENSOR;-,POM(M90-44),-,BLK,-,X-9 S602A AC61-21008A HOLDER-SENSOR;-,POM(M90-44),-,BLK,-,X-9 TM401B Refer to table below CONNECTOR BOARD-ASSY;HIPS94 COUNTRY MODELS TM401B U.A.E. SV-425G AC97-00175A AC64-50995Z AC97-00216A AC64-30892A AC39-10019A AC61-11063H SV-224G AC97-00103A AC64-52172C AC64-30892A AC39-10019A AC61-11063H SV-223G AC98-11259N AC64-52172B AC64-30892A AC39-10019A...
  • Page 14: Mechanical Parts (Top Side)

    Exploded View and Parts List 3-2 Mechanical Parts (Top Side) Samsung Electronics...
  • Page 15 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,-,-,-,X- 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 16: Mechanical Parts (Bottom Side)

    Exploded View and Parts List 3-3 Mechanical Parts (Bottom Side) Samsung Electronics...
  • Page 17 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 18 Exploded View and Parts List MEMO Samsung Electronics...
  • Page 19: Electrical Parts List

    R-METAL OXIDE;100OHM,5%,2W,AE,TP,6X16MM R1SR14 2001-000003 R-CARBON;330ohm,5%,1/8W,AA,TP,1.8x3.2mm R1SS32 2001-000429 R-CARBON;1KOHM,5%,1/8W,AA,TP,- R1SS10 2006-000262 R-CEMENT;2.7ohm,10%,2W,CB,ST,7.5x11x20. R1SS33 2004-000869 R-METAL;3Kohm,1%,1/8W,AA,TP,1.8x3.2mm R1SS13 2003-000148 R-METAL OXIDE;100OHM,5%,2W,AE,TP,6X16MM R1SS34 2004-000459 R-METAL;2.2Kohm,1%,1/8W,AA,TP,1.8x3.2m R1SS32 2001-000429 R-CARBON;1KOHM,5%,1/8W,AA,TP,- VA1SS1 1405-001026 VARISTOR;470V,600A,9x7mm,TP R1SS33 2004-000869 R-METAL;3Kohm,1%,1/8W,AA,TP,1.8x3.2mm ZD1SF1 0403-000539 DIODE-ZENER;MTZ18C,18V,17.42-18.33V,500m R1SS34 2004-000459 R-METAL;2.2Kohm,1%,1/8W,AA,TP,1.8x3.2m ZD1SF2 0403-000294 DIODE-ZENER;MTZ4.7B,4.7V,4.55-4.80V,500m Samsung Electronics...
  • Page 20 R-CARBON;1KOHM,5%,1/8W,AA,TP,- C621 2401-001545 C-AL;47uF,20%,25V,GP,TP,6.3x7mm,2.5 R614 2001-000429 R-CARBON;1KOHM,5%,1/8W,AA,TP,- C622 2301-001006 C-FILM,PEF;68nF,5%,50V,TP,8x4x8.5mm,5mm R641 2001-000780 R-CARBON;470OHM,5%,1/8W,AA,TP,- C623 2202-000807 C-CERAMIC,MLC-AXIAL;22nF,+80-20%,25V,Y5V R642 2001-000780 R-CARBON;470OHM,5%,1/8W,AA,TP,- C624 2202-000205 C-CERAMIC,MLC-AXIAL;22pF,5%,50V,SL,TP,1. R644 2001-000429 R-CARBON;1KOHM,5%,1/8W,AA,TP,- C625 2202-000205 C-CERAMIC,MLC-AXIAL;22pF,5%,50V,SL,TP,1. R650 2003-000259 R-METAL OXIDE;3.9OHM,5%,2W,AE,TP,6X16MM 3 ULP : ULTRA LONG PLAY Samsung Electronics...
  • Page 21 2202-000797 C-CERAMIC,MLC-AXIAL;10NF,30%,16V,Y5P,TP, L301 2701-000206 INDUCTOR-AXIAL;56UH,5%,2.4X3.4MM C324 2202-000797 C-CERAMIC,MLC-AXIAL;10NF,30%,16V,Y5P,TP, L302 AC27-92001B COIL-PEAKING AXIAL;BAL04ST101K,-,-,-,- C325 2202-000797 C-CERAMIC,MLC-AXIAL;10NF,30%,16V,Y5P,TP, L303 AC27-92001B COIL-PEAKING AXIAL;BAL04ST101K,-,-,-,- C326 2202-002037 C-CERAMIC,MLC-AXIAL;100nF,80-20%,50V,Y5V L304 AC27-92001B COIL-PEAKING AXIAL;BAL04ST101K,-,-,-,- C327 2401-001507 C-AL;47uF,20%,16V,GP,TP,6.3x5,5 L306 2701-000119 INDUCTOR-AXIAL;120UH,5%,2.4X3.4MM C328 2202-000797 C-CERAMIC,MLC-AXIAL;10NF,30%,16V,Y5P,TP, L307 2701-000122 INDUCTOR-AXIAL;12uH,5%,2.4x3.4mm Samsung Electronics...
  • Page 22 2301-000381 C-FILM,PEF;10nF,5%,50V,TP,6.5x5.5x3mm,5m R3A10 2001-000429 R-CARBON;1KOHM,5%,1/8W,AA,TP,- C3S05 2202-002037 C-CERAMIC,MLC-AXIAL;100nF,80-20%,50V,Y5V R3A11 2001-000258 R-CARBON;1.8KOHM,5%,1/8W,AA,TP,- C3S06 2201-000236 C-CERAMIC,DISC;150pF,5%,50V,SL,TP,5.0*3. R3A12 2001-000458 R-CARBON;2.2ohm,5%,1/8W,AA,TP,1.8x3.2mm C3S07 2401-001507 C-AL;47uF,20%,16V,GP,TP,6.3x5,5 R3A13 2001-000780 R-CARBON;470OHM,5%,1/8W,AA,TP,- C3S08 2202-002037 C-CERAMIC,MLC-AXIAL;100nF,80-20%,50V,Y5V R3A14 2001-000522 R-CARBON;22Kohm,5%,1/8W,AA,TP,1.8x3.2mm C3S09 2202-000797 C-CERAMIC,MLC-AXIAL;10NF,30%,16V,Y5P,TP, R3A15 2001-000411 R-CARBON;18KOHM,5%,1/8W,AA,TP,- C3S11 2202-000797 C-CERAMIC,MLC-AXIAL;10NF,30%,16V,Y5P,TP, Samsung Electronics...
  • Page 23 CN706 3711-001198 CONNECTOR-HEADER;NOWALL,10P,1R,2mm,ANGLE Q707 0501-000398 TR-SMALL SIGNAL;KSC945,NPN,250mW,TO-92,T D711 0401-000101 DIODE-SWITCHING;1N4148,100V,200mA,DO-35, Q708 0501-000398 TR-SMALL SIGNAL;KSC945,NPN,250mW,TO-92,T LD702 0601-001201 LED;ROUND,RED,3mm,635nm Q711 0501-000290 TR-SMALL SIGNAL;KSA643-Y,PNP,500MW,TO-92 LD703 0601-000497 LED;ROUND,GRN,3.1mm,565nm Q712 0501-000290 TR-SMALL SIGNAL;KSA643-Y,PNP,500MW,TO-92 LD704 0601-000497 LED;ROUND,GRN,3.1mm,565nm Q713 0501-000290 TR-SMALL SIGNAL;KSA643-Y,PNP,500MW,TO-92 LD705 0601-000497 LED;ROUND,GRN,3.1mm,565nm Samsung Electronics...
  • Page 24 SW707 3404-000165 SWITCH-TACT;12V,50mA,160gf+-50gf,6x6mm,S SHUTTLE PCB (OPTION) CN707 3708-001164 CONNECTOR-FPC/FC/PIC;5P,1.25MM,ANGLE,SN SH701 2101-000101 VR-ROTARY;100Kohm,20%,1/10W,SIDE Refer to table below REMOCON-ASSY Country Models Part No. Universal Remote U.A.E. SV-425G AC59-10419U SV-224G AC59-10425H SV-223G AC59-10419Y SV-122G AC59-10420G SV-121G AC59-10420A SV-100G AC59-10420A Lebanon SV-425G AC59-10419U SV-121G...
  • Page 25: Table Of Contents

    5-9 Remote-Control (VCR Only) - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 5-11 Samsung Electronics...
  • Page 26: 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. 3 Block Identification of Main PCB Samsung Electronics...
  • Page 27: S.m.p.s. (230 Voltage)

    Schematic Diagrams 5-1 S.M.P.S. (230 Voltage) Samsung Electronics...
  • Page 28 Schematic Diagrams 5-2 S.M.P.S. (Free Voltage) Samsung Electronics...
  • Page 29: Power Drive

    Schematic Diagrams 5-3 Power Drive Samsung Electronics...
  • Page 30: System Control/Servo

    Schematic Diagrams 5-4 System Control/Servo Samsung Electronics...
  • Page 31 Schematic Diagrams 5-5 Audio/Video Samsung Electronics...
  • Page 32 Schematic Diagrams 5-6 Secam Samsung Electronics...
  • Page 33 Schematic Diagrams 5-7 Input-Ouput Samsung Electronics...
  • Page 34: Remote-Control (Multi-Tv)

    Schematic Diagrams 5-8 Remote-Control (Multi-TV) 5-10 Samsung Electronics...
  • Page 35: Remote-Control (Vcr Only)

    Schematic Diagrams 5-9 Remote-Control (VCR Only) Samsung Electronics 5-11...
  • Page 36 Schematic Diagrams MEMO 5-12 Samsung Electronics...
  • Page 37 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 38: 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 39 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 40 ´ 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 41 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 42 ´ 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 43 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 44 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 45 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 46 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 47 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 48 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 49 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 50 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 51 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 52 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 53 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 54 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 55 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 56 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 57 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 58 ) 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 59 145 ± 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 60 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 61 Alignment and Adjustment MEMO Samsung Electronics...

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