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VIDEO CASSETTE RECORDER

SVR-527

SERVICE

1. Precautions

2. Alignment and Adjustment

3. Exploded View and Parts List

4. Electrical Parts List

5. Schematic Diagrams

Manual

VIDEO CASSETTE RECORDER

CONTENTS

For mechanical disassembly and adjustment, refer to the “Mechanical Manual” (DX-9R AC68-00001A).

SERVICE MANUAL

SVR-527

ELECTRONICS

APR. 1999

Printed in Korea

AC68-00292A

F.F

REC

POWER EJECT STOP

Summary of Contents for SVR-527

Page 1: ...ist 4 Electrical Parts List 5 Schematic Diagrams Manual VIDEO CASSETTE RECORDER CONTENTS For mechanical disassembly and adjustment refer to the Mechanical Manual DX 9R AC68 00001A SERVICE MANUAL SVR 527 ELECTRONICS Samsung Electronics Co Ltd APR 1999 Printed in Korea AC68 00292A R EW F F REC POWER EJECT STOP ...

Page 2: ... driver See Fig 2 3 When Slider S T are approached in the position of unloading rotate holder Clutch counterclockwise after inserting screw driver in the hole of frame s bottom in order to wind the unwounded tape Refer to Fig 3 If you rotate Gear Worm Wheel continuously when tape is in state of unwinding you may cause a tape contamination by grease and tape damage Be sure to wind the unwounded tap...

Page 3: ... control shafts The current measured should not exceed 0 5 milliamp Reverse the power plug prongs in the AC outlet and repeat the test 6 Antenna Cold Check With the unitÕs AC plug disconnected from the AC source connect an electrical jumper across the two AC prongs Connect one lead of the ohmmeter to an AC prong Connect the other lead to the coaxial connector 7 Some semiconductor Òsolid stateÓ dev...

Page 4: ... leads and components do not touch thermally hot parts 13 Product Safety Notice Some electrical and mechanical parts have special safety related characteristics which might not be obvious from visual inspection These safety features and the protection they give might be lost if the replacement component differs from the original even if the replacement is rated for higher voltage wattage etc Compo...

Page 5: ...of chassis 5 How to adjustment Press the SW720 TEST button on Main PCB to set the adjustment mode If the corresponding adjustment button is pressed the adjustment is performed automatically If the adjustment is completed be sure to turn the power off 2 1 1 Location of adjustment button of remote control Fig 2 1 This type of remote control can adjust This type of remote control can not adjust Remot...

Page 6: ...2 2 Samsung Electronics Alignment and Adjustment 2 1 2 SW720 TEST location for adjustment mode setting Fig 2 2 Main PCB Top View PRESS ...

Page 7: ...chanical Manual 1 Playback the alignment tape Color bar 2 Press the ÒSW720 TEST Ó button on Main PCB to 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 4 Connect the CH 1 probe to TP301 Envelope the CH 2 probe to TP602 HÕD switching pulse and then trigger to CH 1 5 Insert the driver into the X Point adjustment hole ...

Page 8: ...2 4 Samsung Electronics Alignment and Adjustment MEMO ...

Page 9: ...Samsung Electronics 3 1 3 Exploded View and Parts List 3 1 Cabinet Assembly 3 2 Mechanical Parts Top Side 3 3 Mechanical Parts Bottom Side Page 3 2 3 4 3 6 ...

Page 10: ...ts List 3 2 Samsung Electronics 3 1 Cabinet Assembly S N A Service Not Available 157 153 FULL DECK S N A TM401B 200 MAIN PCB S N A BRACKET FRAME S N A CN602S CN3A1S 101 155 S601A LD601A S602A LED PCB S N A 102 157 1 1 21 22 ...

Page 11: ...V C833 SPTE T0 3 X 153 AC60 12126A SCREW BH BH 4 12 FE FZY 155 AC60 12134A SCREW TAP BH BH 2 4X16 FE 157 AC60 10063A SCREW TAPTITE BH M3 L12 ZPC3 SWRCH18 200 AC39 10019A POWER CORD KKP 419C H03VVH2 F VDE KEMA K CN3A1S 3809 001110 CABLE FLAT 30V 80C 150mm 7P 1 25mm UL289 CN602S 3809 001112 CABLE FLAT 30V 80C 130mm 5P 1 25mm UL289 LD601A AC61 21009A HOLDER LED POM M90 44 BLK X 9 S601A AC61 21008A HO...

Page 12: ...2 Mechanical Parts Top Side G001 K250 K248 K110 K502 K350 K330 K182 K140 K490 K530 K240 G532 G420 G450 K546 G510 B410 B440 B444 B446 B448 B452 G527 G520 G480 G680 S N A S N A S N A S N A S N A G530 K340 B473 K188 G555 G546 S N A Service Not Available S N A ...

Page 13: ...60553A SPRING 9 GUIDE ES SUS304 WPB OD3 1 0 G530 AC33 10217G HEAD FE VAA00000275 X 9 G532 AC60 10519A SCREW TAP TITE PH M2 6 L8 ZPC G546 AC66 30535A LEVER FL DOOR POM M90 44 BLK X 9 G555 AC59 90403A UNIT PINCH ASSY X 9 G680 AC66 30557A LEVER H CLEANER ASSY POM URETHANE OPTIONAL K110 AC66 10267A REEL DISK S POM M90 44 X 9 K140 AC66 10268A REEL DISK T POM M90 44 X 9 K182 AC66 30524A LEVER IDLER POM9...

Page 14: ...d View and Parts List 3 6 Samsung Electronics 3 3 Mechanical Parts Bottom Side G542 B560 B484 B458 B500 B488 B462 OPTIONAL S N A S N A S N A S N A B456 K222 K200 K225 K221 B570 B238 S N A Service Not Available ...

Page 15: ... TITE PH M2 6 L5 ZPC YE B484 AC66 20580A GEAR LOADING DRIVE POM SW 01 M1 0 Z32 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 30306...

Page 16: ...Exploded View and Parts List 3 8 Samsung Electronics MEMO ...

Page 17: ...R METAL OXIDE 100OHM 5 2W AE TP 6X16MM R1SS32 2001 000429 R CARBON 1KOHM 5 1 8W AA TP 1 8X3 2MM R1SS33 2004 000869 R METAL 3Kohm 1 1 8W AA TP 1 8x3 2mm R1SS34 2004 000459 R METAL 2 2Kohm 1 1 8W AA TP 1 8x3 2m VA1SS1 1405 001026 VARISTOR 470V 600A 9x7mm TP ZD1SR1 0403 000571 DIODE ZENER UZP43B 43V 40 46V 1W DO 41 T POWER DRIVE PARTS C1P101 2401 000598 C AL 1uF 20 50V GP TP 4x7 5 C1P102 2401 003107 ...

Page 18: ... PT602 0604 001122 PHOTO INTERRUPTER TR 0 065 150mW DIP 4 Q601 0501 000303 TR SMALL SIGNAL KSA733 PNP 250mW TO 92 T Q602 0501 000398 TR SMALL SIGNAL KSC945 NPN 250mW TO 92 T Q603 0501 000398 TR SMALL SIGNAL KSC945 NPN 250mW TO 92 T Q604 0501 000398 TR SMALL SIGNAL KSC945 NPN 250mW TO 92 T R601 2003 000259 R METAL OXIDE 3 9OHM 5 2W AE TP 6X16MM R602 2001 000281 R CARBON 100OHM 5 1 8W AA TP 1 8X3 2M...

Page 19: ...6V Y5S TP C345 2202 000787 C CERAMIC MLC AXIAL 10PF 5 50V Y5P TP 3 C346 2401 003107 C AL 47uF 20 16V GP TP 5x7 5 C347 2202 000286 C CERAMIC MLC AXIAL 56pF 5 50V SL TP 1 C349 2202 000849 C CERAMIC MLC AXIAL 18pF 5 50V CH TP 3 C350 2202 000797 C CERAMIC MLC AXIAL 10NF 30 16V Y5S TP C360 2202 000849 C CERAMIC MLC AXIAL 18pF 5 50V CH TP 3 C361 2202 000787 C CERAMIC MLC AXIAL 10PF 5 50V Y5P TP 3 C370 2...

Page 20: ...O 41 TP D402 0401 000101 DIODE SWITCHING 1N4148 100V 200mA DO 35 D403 0401 000101 DIODE SWITCHING 1N4148 100V 200mA DO 35 IC5103 AC14 12002V IC KA78L09 JC801 AC37 20001G JACK RCA DPAE 6P HIFI PI3 3 L401 AC27 92001B COIL PEAKING AXIAL BAL04ST101K Q401 0501 000303 TR SMALL SIGNAL KSA733 PNP 250mW TO 92 T Q402 0501 000398 TR SMALL SIGNAL KSC945 NPN 250mW TO 92 T R404 2001 001026 R CARBON 910OHM 5 1 8...

Page 21: ...00mW TO 92 Q727 0501 000290 TR SMALL SIGNAL KSA643 Y PNP 500mW TO 92 R702 2001 000362 R CARBON 150OHM 5 1 8W AA TP 1 8X3 2MM R703 2001 000362 R CARBON 150OHM 5 1 8W AA TP 1 8X3 2MM R704 2001 000362 R CARBON 150OHM 5 1 8W AA TP 1 8X3 2MM R705 2001 000362 R CARBON 150OHM 5 1 8W AA TP 1 8X3 2MM R706 2001 000362 R CARBON 150OHM 5 1 8W AA TP 1 8X3 2MM R707 2001 000362 R CARBON 150OHM 5 1 8W AA TP 1 8X3...

Page 22: ...4 6 Samsung Electronics Electrical Parts List MEMO ...

Page 23: ...onics 5 1 5 Schematic Diagrams 5 2 5 3 5 4 5 5 5 6 5 7 5 8 5 9 3 Block Identification of Main PCB 5 1 S M P S 5 2 Power Drive 5 3 System Control Servo LED 5 4 Audio Video 5 5 Hi Fi 5 6 Input Output 5 7 Remote Control ...

Page 24: ... the electrostatically sensitive ES devices section of this service manual Note Do not use the part number shown on this drawing for ordering The correct part number is shown in the parts list may be slightly different or amended since this drawing was prepared Important safety notices Components identified with the mark have the special characteristics for safety When replacing any of these compo...

Page 25: ...Schematic Diagrams Samsung Electronics 5 3 5 1 S M P S ...

Page 26: ...Schematic Diagrams 5 4 Samsung Electronics 5 2 Power Drive ...

Page 27: ...Schematic Diagrams Samsung Electronics 5 5 OPTION 5 3 System Control Servo LED ...

Page 28: ...Schematic Diagrams 5 6 Samsung Electronics 5 4 Audio Video ...

Page 29: ...Schematic Diagrams Samsung Electronics 5 7 OPTION 5 5 Hi Fi ...

Page 30: ...Schematic Diagrams 5 8 Samsung Electronics 5 6 Input Output ...

Page 31: ...Schematic Diagrams Samsung Electronics 5 9 5 7 Remote Control ...

Page 32: ...Schematic Diagrams 5 10 Samsung Electronics MEMO ...

Page 33: ...sembly and Reassembly 2 Alignment and Adjustment VHS DECK CONTENTS 3 File with the SERVICE MANUAL MECHANICAL MANUAL DX 9R ELECTRONICS Samsung Electronics Co Ltd NOV 1998 Printed in Korea AC68 00001A MECHANICALManual ...

Page 34: ...ˆ 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 1 Disassembly and Reassembly 1 1 Deck Parts Locations 1 1 1 Top View ...

Page 35: ... Parts Location 2 Œ FE HEAD PLATE CYLINDER C ˇ CYLINDER ASS Y PLATE CYLINDER B ˆ PLATE CYLINDER A Ø ACE HEAD ASS Y UNIT PINCH ASS Y LEVER 9 GUIDE ASS Y LEVER TENSION ASS Y BAND BRAKE ASS Y Ô DISK S REEL LEVER S BRAKE ASS Y Ò GEAR IDLE Ú LEVER IDLE Æ LEVER T BRAKE ASS Y ı DISK T REEL ...

Page 36: ...s 1 3 1 1 2 Bottom View Œ ˇ ˆ Ø Ô Fig 1 3 Bottom Parts Location Œ GEAR JOINT 1 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 ...

Page 37: ...e Take care not to change assembly direction Œ 2 SCREWS BRACKET FL TOP 1 2 2 Lever FL Door Removal 1 Rotate the Lever FL Door Œ in the direction of arrow ÒAÓ 2 Release the Hook remove the Lever FL Door Œ in the direction of arrow ÒBÓ HOOK Œ LEVER FL DOOR A B 1 2 Main Deck Fig 1 4 Bracket FL Top Removal Fig 1 5 Lever FL Door Removal ...

Page 38: ...mpletely Note Be sure to insert Lever FL Cassette R in the direction of ÒAÓ to prevent separation and breakage of the Lever FL Cassette R at disassembling and reassembling Œ HOLDER FL CASSETTE ASS Y LEVER FL CASSETTE R BOSS A BOSS B RAIL C RAIL D A B 1 2 4 Lever FL Arm Ass y Removal 1 Remove the Lever FL Door Refer to Fig 1 5 2 Remove the Holder FL Cassette AssÕy Refer to Fig 1 6 3 Release the Hoo...

Page 39: ...the direction of arrow Refer to Fig 1 8 Œ SLIDER FL DRIVE 1 2 6 Bracket Gear Gear FL Cam Gear Joint 1 2 Removal 1 Remove screw Œ 2 Lift the Bracket Gear 3 Remove the Gear FL Cam ˇ 4 Lift the Gear Joint 2 Gear Joint 1 ˆ Œ SCREW BRACKET GEAR ˇ GEAR FL CAM ˆ GEAR JOINT 1 GEAR JOINT 2 Fig 1 8 Slider FL Drive Removal Fig 1 9 Bracket Gear Gear FL Cam Gear Joint 1 2 Removal ...

Page 40: ...ng Point 3 Œ GEAR JOINT 1 GEAR JOINT 2 ˇ SLIDER CAM TIMING POINT 1 GEAR FL CAM GEAR WORM WHEEL POST TIMING POINT 2 TIMING POINT 3 1 2 8 Holder Worm Gear Worm Gear Worm Wheel Removal 1 Release the Hook A in the direction of arrow and remove the Holder Worm Œ 2 Remove the Gear Worm 3 Remove the Gear Worm Wheel ˇ After remov ing the Gear FL Cam as shown Fig 1 9 Note Secure the Hook A after installing...

Page 41: ...S Load Ass y Removal 1 Remove the Belt Pulley Refer to Fig 1 29 2 Remove the Gear Loading Drive Œ after releasing Hook A in the direction arrow as shown in detail drawing 3 Remove the Slider Cam 4 Remove the Lever T S Load AssÕy ˇ Œ GEAR LOADING DRIVE ˇ LEVER T LOAD ASS Y HOOK A SLIDER CAM LEVER S LOAD ASS Y Fig 1 12 Motor Loading Ass y Removal Fig 1 13 Gear Loading Drive Slider Cam Lever T S Load...

Page 42: ... 1 TIMING POINT 2 TIMING POINT 3 1 2 12 Lever Tension Ass y Band Brake Ass y Sleeve Tension Removal 1 Remove the Spring Tension Œ 2 In bottom side of Deck remove the Sleeve Tension after rotating it right or left as lifting locking edge of Sleeve Tension 3 Remove the side ÒaÓ of the Band Brake AssÕy in the direction of arrow ÒAÓ from the Lever Tension AssÕy ˇ 4 Remove the side ÒbÓ of the Band Brak...

Page 43: ...care not to be folded and trans formed spring Brake at removing or reinstalling ˇ SPRING BRAKE LEVER T BRAKE ASS Y Œ LEVER S BRAKE ASS Y HOOK A HOOK C HOOK B 1 2 14 Lever Idle Ass y Removal 1 Push the Lever Idle Œ in the direction of arrow ÒAÓ ÒBÓ 2 Lift the Lever Idle Œ Assembly 1 Apply oil in two Bosses of Lever Idle Œ 2 Assemble the Gear Idle with the Lever Idle Œ Note When replacing the Gear I...

Page 44: ... S T Reel Removal 1 Lift the Disk S T Reel Œ DISK T REEL Œ DISK S REEL 1 2 16 Holder Clutch Ass y Removal 1 Remove the Washer Slit Œ 2 Lift the Holder Clutch AssÕy HOLDER CLUTCH ASS Y Œ WASHER SLIT Fig 1 18 Disk S T Reel Removal Fig 1 19 Holder Clutch Ass y Removal ...

Page 45: ... Base 2 Lift the Lever Up Down AssÕy Œ about 35 degree Refer to Fig 1 21 3 Insert Ring of the Gear Center AssÕy in the Guide ˆ of the Lever Up Down AssÕy Œ 4 Insert the Gear Center AssÕy in the post Ø on Main Base 5 Push down the Lever Up Down AssÕy Œ for lock ing of the Hook Note 1 Take care not to separate and loose the Spring Up Down 2 When assembling the Gear Center AssÕy donÕt push down too m...

Page 46: ... 2 20 Unit Pinch Ass y Plate Joint Spring Pinch Drive Removal 1 Lift the Unit Pinch AssÕy Œ 2 Remove the Plate Joint from Lever Pinch Drive 3 Remove the Spring Pinch Drive ˇ Note 1 Take extreme care not to touch the grease on the Roller Pinch 2 When reinstalling be sure to apply grease on the post pinch roller Œ UNIT PINCH ASS Y PLATE JOINT ˇ SPRING PINCH DRIVE Fig 1 22 Guide Cassette Door Removal...

Page 47: ...ion of arrow Note 1 Take extreme care not to touch the grease on the tape Guide Post 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 1 2 22 FE Head Removal 1 Remove the screw Œ 2 Lift the FE Head Œ SCREW FE HEAD Fig 1 24 Lever 9 Guide Ass y Removal Fig 1 25 FE Head Removal ...

Page 48: ...connector of ACE Head AssÕy 2 Remove the screw Œ 3 Lift the ACE Head AssÕy Œ SCREW ACE HEAD ASS Y 1 2 24 Slider S T Ass y Removal 1 Move the Slider S T AssÕy Œ to slot and then lift it to remove Refer to arrow SLIDER T ASS Y Œ SLIDER S ASS Y Fig 1 26 ACE Head Removal Fig 1 27 Slider S T Ass y Removal ...

Page 49: ...ylinder C 3 Take care not to touch the Cylinder AssÕy with screw driver at reinstalling the Plate Cylinder C ˆ SCREW CYLINDER ASS Y Œ SCREW PLATE CYLINDER C ˇ SCREW PLATE CYLINDER B Ø PLATE CYLINDER A 1 2 26 Belt Pulley Removal 1 Remove the Belt Pulley Œ Note Take extreme care not to touch the grease on Belt Pulley Œ at assembling or reassembling Œ BELT PULLEY Fig 1 28 Cylinder Ass y Removal Fig 1...

Page 50: ... 29 How to Eject the Cassette Tape If the unit does not operate on condition that is inserted into housing ass y 1 Remove the Holder worm Œ and the Gear Worm 2 Turn the Gear Worm Wheel ˇ counterclockwise with screw driver Refer to arrow Œ HOLDER WORM GEAR WORM SCREW DRIVER ˇ GEAR WORM WHEEL Fig 1 31 Motor Capstan Ass y Removal Fig 1 32 3 When Slider S T are approached in the position of unloading ...

Page 51: ...STAN SHAFT 9 GUIDE POST 3 GUIDE POST GUIDE ROLLER S T O O O O O O O CYLINDER ASS Y O O O O O O O O O FE HEAD O O O O O O O ACE HEAD O O O O O O O O O PINCH ROLLER O O O O O O O O O POST REEL S T 3 3 3 3 3 SLEEVE TENSION 3 3 3 3 3 POST CENTER 3 3 3 3 3 LEVER IDLE BOSS 2Point 3 3 3 3 3 CAPSTAN MOTOR PULLEY O O O O O BELT PULLEY O O O O O O O HOLDER CLUTCH ASS Y O O O O O O O O O GEAR CENTER ASS Y O ...

Page 52: ...LER GUIDE ROLLER S GUIDE ROLLER T 8 GUIDE POST 9 GUIDE POST CAPSTAN SHAFT ACE HEAD 3 GUIDE POST 2 Alignment and Adjustment 2 1 Tape Transport System and Adjustment Locations The tape transport system has been adjusted precisely in the factory Alignment is not necessary except for the following 1 Noise observed on the screen 2 Tape damage 3 Parts replacement in the tape transport system Lower flang...

Page 53: ...ghtly turn the screw A tilt adjust on the ACE head assÕy 4 Reconfirm the ACE head height Fig 2 5 Tape Guide Check 2 2 1 c AUDIO AZIMUTH ADJUSTMENT 1 Load alignment tape Mono scope and playback the NTSC 7KHz PAL 6KHz signal 2 Connect channel 1 scope probe to audio output test point 3 Adjust screw B to achieve maximum audio level See Fig 2 3 2 2 1 d ACE HEAD POSITION X POINT ADJUSTMENT 1 See page 5 ...

Page 54: ...he video RF envelope at the exit side 4 If the section A in Fig 2 7 does not meet the speci fication adjust the guide roller S up or down 5 If the section B in Fig 2 7 does not meet the speci fication adjust the guide roller T up or down Fig 2 6 Envelope Waveform Adjustment a a b c d c b d a 63 b c d Fig 2 7 Adjustment Points A B A B H D SWITCHING PULSE ENVELOPE 6 Play back the Mono Scope alignmen...

Page 55: ...ng with T 120 E 120 The video envelope should meet the specification as shown in Fig 2 10 In SP mode A should equal B If the head gap is wide upper cylinder should be checked A B Fig 2 10 Envelope Output and Output Level 2 2 5 Tape Wrinkle Check 1 Run the T 160 E 180 tape in the playback FPS RPS and Pause modes and observe tape wrinkle at each guide 2 If excessive tape wrinkle is observed perform ...

Page 56: ...cting it with Back Tension Meter 1 0mm 0 5mm ˇ LEVER TENSION ASS Y Œ DISK S REEL ADJUSTING ADJUSTING SLIT 1 3 Fig 2 13 Tension Pole and Back Tension Adjustment 1 Remove the holder cassette assÕy and then push the lever FL Arm R to the direction of loading 2 Push the lever tension drive Œ in the direction of arrow See Fig 2 11 3 Turn the gear worm wheel clockwise so that ÒTiming PointÓ of the slide...

Page 57: ...2 6 Samsung Electronics Alignment and Adjustment MEMO ...

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