Samsung SV-G180UM Service Manual Download Page 1

Page: 1 / 65

VIDEO CASSETTE RECORDER

Chassis : Scorpio
SV-G180UM/G175UM/G170UM/G95UMA
SV-G75UM/G70UM/G45UMA
SV-G100UP/G70P/G55UP/G50UP
SV-G180P/G175P/G171P/G75P/G71P
SV-G45UPA/G45UPV/G45PA/G45PV

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” (TS-10 AC68-01405A).

VIDEO L AUDIO R

LINE IN

POWER EJECT

TV/VCR MENU

CHANNEL

TRACKING

REC

INPUT TAPE SPEED

PLAY P/S STOP

JOG/

SHUTTLE

SV-G180UM/G180P

SV-G175UM/G75UM/G175P/G75P

SV-G170UM/G70UM/G70P

SV-G171P/G71P

SV-G95UMA/G45UMA/G45UPA/G45UPV/G45PA/G45PV

SV-G100UP/G50UP

SV-G55UP

POWER

EJECT

POWER REC

REW

PLAY

F.F

STOP

EJECT

POWER

CHANNEL

REC STOP

REW

PLAY

F.F

LINE IN 2

VIDEO L AUDIO R

EJECT

POWER

CHANNEL

REC

STOP

PLAY

REW

EJECT

POWER

CHANNEL

REC STOP

PLAY

REW

F.F

MENU

SERVICE MANUAL

SV
-G180UM/G75UM/G100UP/G70P/G180P/G175P/G75P/G71P/G95UMA/G45UP

A/G45P

ELECTRONICS

APR. 2001

Printed in Korea

AC68-01493A

Summary of Contents for SV-G180UM

Page 1: ...05A VIDEO L AUDIO R LINE IN POWER EJECT TV VCR MENU CHANNEL TRACKING REC INPUT TAPE SPEED PLAY P S STOP JOG SHUTTLE SV G180UM G180P SV G175UM G75UM G175P G75P SV G170UM G70UM G70P SV G171P G71P SV G95UMA G45UMA G45UPA G45UPV G45PA G45PV SV G100UP G50UP SV G55UP POWER EJECT POWER REC REW PLAY F F STOP EJECT POWER CHANNEL REC STOP MENU REW PLAY F F LINE IN 2 VIDEO L AUDIO R EJECT POWER CHANNEL MENU ...

Page 2: ...e screw of Motor Load Ass y Separate the Motor Load Ass y 2 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 unwiunded tape Refer to Fig 3 If you rotate Gear Worm Œ continuously when tape is in state of unwinding you may cause a tape contamination by grease and tape dama...

Page 3: ...ot exceed 0 5 milliamp Reverse the power plug prongs in the AC outlet and repeat the test 6 X ray Limits The picture tube is designed to prohibit X ray emissions To ensure continued X ray protection replace the picture tube only with one that is the same type as the original Fig 1 1 AC Leakage Test 7 Antenna Cold Check With the unit s AC plug disconnected from the AC source connect an electrical j...

Page 4: ... instrument s ground lead to the instrument chassis ground before connecting the positive lead always remove the instrument s ground lead last 17 Observe the original lead dress especially near the following areas Antenna wiring sharp edges and especially the AC and high voltage power supplies Always inspect for pinched out of place or frayed wiring Do not change the spacing between components and...

Page 5: ...justment Momently short circuit the test point on Main PCB with pincers 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 SHUTTLE V LOCK REPLAY F ADV SKIP TV VCR PREV CH REC REC SPEED LINE IN AUDIO SEARCH EXI...

Page 6: ...ung Electronics 2 1 2 Test point location for adjustment mode setting Fig 2 2 Main PCB Top View Short Circuit for a second and release Application Models SV G180UM G175UM G170UM G75UM G70UM G100UP G70P G50UP G180P G175P G171P G75P G71P ...

Page 7: ...Alignment and Adjustment 2 3 Samsung Electronics Fig 2 3 Main PCB Top View Short Circuit for a second and release Application Models SV G95UMA G45UMA G55UP G45UPA G45UPV G45PA G45PV ...

Page 8: ... 2 2 2 ACE Head Position X Point Adjustment See the 2 2 1 d ACE Head Position X Point Adjustment on page 2 2 of the Mechanical Manual 1 Playback the alignment tape Color bar 2 Momently short circuit the test point on Main PCB with pincers to set the adjustment mode See Fig 2 2 and 2 3 3 Press the 5 button of remote control then adjust ment is operated automatically See Fig 2 1 4 Connect the CH 1 p...

Page 9: ...In case Micom IC601 and NVRAM IC603 EEPROM is replaced be sure to set the corresponding option number of the repaired model If the option is not set the unit is not operated MOVE SAVE MENU 01 02 03 04 05 06 07 08 09 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 Fig 2 5 MOVE COMPLETE 01 02 03 04 05 06 07 08 09 10 11 12 13 14 15 16 17 18 19 20 21 22 23 ...

Page 10: ...2 6 Alignment and Adjustment Samsung Electronics MEMO ...

Page 11: ...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 12: ...G171P G71P SV G170UM G70UM G70P SV G180UM G180P SV G175UM G75UM G175P G75P 1 22 21 1 22 21 51 52 1 22 21 UT01 FUNCTION PCB S N A FUNCTION PCB S N A SHUTTLE V LOCK REPLAY F ADV SKIP TV VCR PREV CH R E C R E C S P E E D L I N E I N A U D I O S E A R C H E X I T C L E A R D I S P L A Y POWER EJECT CH TRK VCR TV A TRK ENTER MENU SLOW VOL 100 SHUTTLE V LOCK REPLAY F ADV SKIP AUDIO SEARCH EXIT R E C R E...

Page 13: ...S 1 21 101 TM401B UT01 MEXICO SV G180UM AC97 01273H AC64 00606H AC64 00124B AC61 00058A AC59 00025D SV G175UM AC97 01357A AC64 00334Y AC64 30892J AC61 00058A AC59 00024F SV G170UM AC97 01278D AC64 00637D AC64 30892J AC61 00058A AC59 00024F SV G95UMA AC97 01321A AC64 00372B AC64 00292C AC61 00002A AC59 00012P SV G75UM AC97 01356A AC64 00334X AC64 30892J AC61 11054A AC59 00024F SV G70UM AC97 01278E ...

Page 14: ...g Electronics 3 2 Mechanical Parts Top Side G001 G555 G510 G480 K546 G680 G681 B410 B575 B440 B448 B452 G546 G060 G520 G527 K188 K182 K110 K240 K248 K350 K330 K140 K340 G070 K470 B474 B473 K250 K530 K490 G530 G420 G450 K502 OPTIONAL OPTIONAL ...

Page 15: ...0 6006 001075 SCREW ASS Y TAPT WSP PH M2 6 L5 0 ZPC G520 AC66 00033A LEVER 9 GUIDE ASS Y TS 10 G527 AC61 60553A SPRING 9 GUIDE ES SUS304 WPB OD3 1 0 G530 AC33 00007A HEAD FE HVFHPOO43A G542 AC66 60051A BELT PULLEY 5CM 70 2 2 71 3 X 9 G546 AC66 00005A LEVER FL DOOR TS 10 POM NAT G555 AC66 00032A LEVER UNIT PINCH ASS Y TS 10 G680 AC66 00046A LEVER HEAD CLEANER ASS Y TS 10 POM URETH OPTIONAL G681 AC6...

Page 16: ...Exploded View and Parts List 3 6 Samsung Electronics 3 3 Mechanical Parts Bottom Side G542 B462 B560 B501 B484 B488 B500 B456 B458 B464 B468 K222 K200 K225 K221 B478 B570 B460 B489 ...

Page 17: ...ECC E20 20 1 0 B478 AC66 00016A LEVER TENSION DRIVE TS 10 SECC E20 20 1 B484 AC66 00030A GEAR LOADING DR ASS Y TS 10 POM SWPB B488 AC66 00023A LEVER S LOADING TS 10 POM NAT B489 AC66 00021A LINK LOADING S TS 10 SECC E20 20 0 8 B500 AC66 00024A LEVER T LOADING TS 10 POM NAT B501 AC66 00022A LINK LOADING T TS 10 SECC E20 20 0 8 B560 AC31 00010A MOTOR CAPSTAN SANKYO B570 AC60 10514A SCREW CAPSTAN PH ...

Page 18: ...Exploded View and Parts List 3 8 Samsung Electronics MEMO ...

Page 19: ...0 250mW DIP 4 ST IC1SS2 AC14 12006D IC KA431Z TO 92 TAPING L1SS01 AC29 00003A FILTER LINE NOISE 20mH MIN L1SS02 AC27 12001N COIL CHOKE 10UH 15 RA K 30 Q80 150KHZ L1SS03 AC27 12001N COIL CHOKE 10UH 15 RA K 30 Q80 150KHZ PT1SD1 AC26 00001D TRANS SWITCHING 100V 240V DEMCO EE2821 FREE VOLTAGE ONLY PT1SD1 AC26 00002B TRANS SWITCHING EE2621 UL CSA DEMK AC120V ONLY Q1SR01 0501 000442 TR SMALL SIGNAL KTC3...

Page 20: ...F 20 10V GP TP 6 3x11 5 1M B UP ONLY C6B02 2401 002259 C AL 0 1F 80 20 5 5V TP 12 5x11 6H B UP ONLY CN601 AC39 20817S LEAD CONNECTOR ASSY DP SMH200 02 YBH200 CN604 3711 003749 CONNECTOR HEADER BOX 8P 2R 2mm STRAIGHT CN605 3708 001302 CONNECTOR FPC FC PIC 7P 1 25mm STRAIGHT D601 0401 000101 DIODE SWITCHING 1N4148 100V 200mA DO 35 D603 0402 000127 DIODE RECTIFIER 1N4002 100V 1A DO 41 TP D604 0402 00...

Page 21: ... 2203 000989 C CERAMIC CHIP 47nF 10 50V X7R TP 2012 C333 2203 000989 C CERAMIC CHIP 47nF 10 50V X7R TP 2012 C334 2401 003107 C AL 47uF 20 16V GP TP 5x7 5 C335 2203 000192 C CERAMIC CHIP 100nF 80 20 50V Y5V TP C336 2202 002037 C CERAMIC MLC AXIAL 100nF 80 20 50V Y5V C337 2401 003107 C AL 47uF 20 16V GP TP 5x7 5 C338 2203 000192 C CERAMIC CHIP 100nF 80 20 50V Y5V TP C340 2401 000918 C AL 22uF 20 16V...

Page 22: ...8 C AL 1uF 20 50V GP TP 4x7 5 C530 2203 000192 C CERAMIC CHIP 100nF 80 20 50V Y5V TP C531 2401 003107 C AL 47uF 20 16V GP TP 5x7 5 C532 2203 000192 C CERAMIC CHIP 100nF 80 20 50V Y5V TP C533 2203 000192 C CERAMIC CHIP 100nF 80 20 50V Y5V TP C534 2203 000192 C CERAMIC CHIP 100nF 80 20 50V Y5V TP C535 2401 000414 C AL 10uF 20 16V GP TP 4x7 5 C536 2401 001919 C AL 2 2uF 20 50V TP 4x7mm 5 C537 2401 00...

Page 23: ...5OHM 5 1 8W AA TP 1 8X3 2MM R718 2001 000290 R CARBON 10KOHM 5 1 8W AA TP 1 8X3 2MM R719 2001 000969 R CARBON 75OHM 5 1 8W AA TP 1 8X3 2MM R720 2001 000290 R CARBON 10KOHM 5 1 8W AA TP 1 8X3 2MM R721 2001 000969 R CARBON 75OHM 5 1 8W AA TP 1 8X3 2MM R722 2001 000290 R CARBON 10KOHM 5 1 8W AA TP 1 8X3 2MM R723 2001 000969 R CARBON 75OHM 5 1 8W AA TP 1 8X3 2MM R724 2007 000493 R CHIP 2 2KOHM 5 1 10W...

Page 24: ...N 200OHM 5 1 8W AA TP 1 8X3 2MM AC120V ONLY R1SD01 2001 000869 R CARBON 56OHM 5 1 8W AA TP 1 8X3 2MM FREE VOLTAGE ONLY R1SD02 2001 000515 R CARBON 220OHM 5 1 8W AA TP 1 8X3 2MM AC120V ONLY R1SD02 2001 000780 R CARBON 470OHM 5 1 8W AA TP 1 8X3 2MM AC120V ONLY R1SD03 2001 000429 R CARBON 1KOHM 5 1 8W AA TP 1 8X3 2MM R1SD04 2003 000314 R METAL OXIDE 47ohm 5 2W AE TP 6x16mm AC120V ONLY R1SD04 AC27 920...

Page 25: ...0 DIP 30P 417MIL IC603 1103 001148 IC EEPROM 24C021 2KBIT DIP 8P 300MIL 10M IC6B1 AC14 12006C IC KA7533 DIP L601 3301 000297 CORE FERRITE BEAD AA 3 6x1 2x5 7mm 1400 L602 2701 000002 INDUCTOR AXIAL 100uH 10 4 2x9 8mm LD601 0601 000517 LED IR RECTANGULA 4x6 0mm 75mW 6V 950 PT601 0604 001122 PHOTO INTERRUPTER TR 0 065 150mW DIP 4 PT602 0604 001122 PHOTO INTERRUPTER TR 0 065 150mW DIP 4 R601 2007 0005...

Page 26: ... 25mm STRAIGHT FL301 AC27 80100C COIL OSC 7mm 2 4mH IC301 1204 001755 IC VIDEO PROCESS LA71200M QFP 80P PLAS L301 3301 000297 CORE FERRITE BEAD AA 3 6x1 2x5 7mm 1400 L302 3301 000297 CORE FERRITE BEAD AA 3 6x1 2x5 7mm 1400 L303 3301 000297 CORE FERRITE BEAD AA 3 6x1 2x5 7mm 1400 L304 3301 000297 CORE FERRITE BEAD AA 3 6x1 2x5 7mm 1400 L305 3301 000297 CORE FERRITE BEAD AA 3 6x1 2x5 7mm 1400 L306 2...

Page 27: ... 2012 R518 2007 001224 R CHIP 9 1KOHM 5 1 10W DA TP 2012 R519 2001 000786 R CARBON 47KOHM 5 1 8W AA TP 1 8X3 2MM R520 2001 000786 R CARBON 47KOHM 5 1 8W AA TP 1 8X3 2MM R521 2001 000472 R CARBON 2 7KOHM 5 1 8W AA TP 1 8X3 2M R522 2007 000518 R CHIP 2 7KOHM 5 1 10W DA TP 2012 R525 2001 000472 R CARBON 2 7KOHM 5 1 8W AA TP 1 8X3 2M R527 2007 000300 R CHIP 10KOHM 5 1 10W DA TP 2012 R530 2001 000347 R...

Page 28: ...01 001408 LED ROUND GRN LD7L04 0601 001408 LED ROUND GRN LD7L05 0601 001408 LED ROUND GRN LD7L06 0601 001408 LED ROUND GRN LD7L07 0601 001203 LED ROUND RED 3 3mm 700nm R7L01 2001 000290 R CARBON 10KOHM 5 1 8W AA TP 1 8X3 2MM R7L08 2001 000515 R CARBON 220OHM 5 1 8W AA TP 1 8X3 2MM R7L09 2001 000515 R CARBON 220OHM 5 1 8W AA TP 1 8X3 2MM R7L10 2001 000515 R CARBON 220OHM 5 1 8W AA TP 1 8X3 2MM R7L1...

Page 29: ...tage 5 3 5 2 S M P S Power Free Voltage 5 4 5 3 Logic 5 5 5 4 Audio Video 5 7 5 5 Hi Fi Option 5 9 5 6 TM Block Input Output 5 11 5 7 Display LED Module SV G180UM G175UM G170UM G75UM G70UM G100UP G70P G50UP G180P G175P G171P G75P 5 12 5 8 Display LED Lamp SV G95UMA G45UMA G55UP G45UPA G45UPV G45PA G45PV 5 13 ...

Page 30: ...atically 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 components Use only...

Page 31: ...Schematic Diagrams Samsung Electronics 5 3 5 1 S M P S Power 120 Voltage PWR OFF PWR ON Œ Œ Q1SR02 COLLECTOR POWER OFF 240Vp p Q1SR02 COLLECTOR POWER ON 270Vp p ...

Page 32: ...Schematic Diagrams 5 4 Samsung Electronics 5 2 S M P S Power Free Voltage ...

Page 33: ...Schematic Diagrams Samsung Electronics 5 5 5 3 Logic Ø ˆ Œ ˇ Ω ...

Page 34: ...onics IC601 VOLTAGE TABLE WAVEFORM IC601 MN101D02X Œ IC601 35 PB 3Vp p IC601 37 38 PB REC 620mVp p IC601 34 PB 5Vp p IC601 47 PB REC 2 2Vp p ˇ IC601 33 PB 5Vp p IC601 50 PB REC 1 8Vp p CN604 6 PB 5Vp p ˆ IC602 8 PB 5Vp p Ø TP601 PB 3 2Vp p ...

Page 35: ...Schematic Diagrams Samsung Electronics 5 7 5 4 Audio Video ˇ ˆ Ø Œ ...

Page 36: ...tronics IC301 VOLTAGE TABLE WAVEFORM IC301 LA71200M Œ IC301 9 REC 3Vp p IC301 73 REC SP 4Vp p IC301 21 PB REC 440mVp p IC301 10 PB 1 4Vp p ˇ IC301 24 PB REC 250mVp p IC301 39 PB REC 400mVp p ˆ TP301 PB 600mVp p Ø IC301 66 REC EP 3 1Vp p ...

Page 37: ...Schematic Diagrams Samsung Electronics 5 9 5 5 Hi Fi Option Œ ˇ ...

Page 38: ...Schematic Diagrams 5 10 Samsung Electronics IC501 VOLTAGE TABLE WAVEFORM IC501 AN3662FBP Œ IC501 30 PB 50mVp p IC501 21 PB 50mVp p ˇ IC501 53 57 PB REC 150mVp p ...

Page 39: ...Schematic Diagrams Samsung Electronics 5 11 5 6 TM Block Input Output Œ TM401 18 REC 100mVp p TM401 20 REC 100mVp p Œ ...

Page 40: ...Schematic Diagrams 5 12 Samsung Electronics 5 7 Display LED Module SV G180UM G175UM G170UM G75UM G70UM G100UP G70P G50UP G180P G175P G171P G75P ...

Page 41: ...Schematic Diagrams Samsung Electronics 5 13 5 8 Display LED Lamp SV G95UMA G45UMA G55UP G45UPA G45UPV G45PA G45PV ...

Page 42: ...Schematic Diagrams 5 14 Samsung Electronics MEMO ...

Page 43: ...sembly and Reassembly 2 Alignment and Adjustment TS 10 DECK CONTENTS File with the SERVICE MANUAL MECHANICAL MANUAL TS 10 DECK ELECTRONICS Samsung Electronics Co Ltd JUN 2001 Printed in Korea AC68 01451A MECHANICALManual ...

Page 44: ... 1 Œ ˇ ˆ Ø Fig 1 1 Top parts Location 1 Œ GEAR FL CAM MOTOR LOADING ASS Y ˇ LEVER FL ARM ASS Y HOLDER FL CASSETTE ASS Y ˆ LEVER FL DOOR Ø SLIDER FL DRIVE 1 Disassembly and Reassembly 1 1 Deck Parts Locations 1 1 1 Top View ...

Page 45: ... ˇ ˆ Ø Ô Ò Fig 1 2 Top Parts Location 2 Œ FE HEAD CYLINDER ASS Y ˇ ACE HEAD ASS Y LEVER UNIT PINCH ASS Y ˆ LEVER 9 GUIDE ASS Y Ø LEVER TENSION ASS Y BAND BRAKE ASS Y DISK S REEL LEVER S BRAKE ASS Y GEAR IDLE Ô LEVER IDLE LEVER T BRAKE ASS Y Ò DISK T REEL ...

Page 46: ...lectronics 1 3 1 1 2 Bottom View Œ ˇ ˆ Ø Fig 1 3 Bottom Parts Location Œ GEAR JOINT 1 GEAR JOINT 2 ˇ BRACKET 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 ...

Page 47: ... y Œ as grasping the Holder FL Cassette Ass y Œ and Lever FL Cassette R in the same time to release hooking from Main Base until the Boss A of Holder FL Cassette Ass y Œ is taken out from the Rail B 3 Lift the Holder FL Cassette Ass y Œ in this time you have to grasp the Lever FL Cassette R Continuously until the Holder FL Cassette Ass y Œ is taken out completely Note Be sure to insert Lever FL Ca...

Page 48: ...2 3 Slider FL Drive Gear FL Cam Removal 1 Pull the Slider FL Drive Œ to the front direction 2 Remove the Slider FL Drive Œ in the direction of arrow Refer to Fig 1 6 3 Remove the Gear FL cam Note When reinstalling be sure to reassemble Slider FL drive Œ after you insert the Boss of Lever FL ARM R in Groove of Slider Fl drive Œ Assembly Align the Gear FL Cam Œ with the Gear worm wheel Post as shown...

Page 49: ... Gear Worm Wheel Removal 1 Remove the Gear Worm wheel Œ Œ GEAR WORM WHEEL Fig 1 9 Gear Worm Wheel Removal 1 2 6 Motor Loading Ass y Removal 1 Remove the screw Œ 2 Remove the Motor Loading Ass y MOTOR LOADING ASS Y Œ SCREW Fig 1 10 Motor Loading Ass y Removal ...

Page 50: ... GEAR JOINT 2 1 2 8 Gear Loading Drive Slider Cam Lever Load S T Ass y Removal 1 Remove the Belt Pulley Refer to Fig 1 30 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 Load ˇ Link Load ˆ Lever Load Link Load Ø Œ GEAR LOADING DRIVE ˆ LINK LOAD S ˇ LEVER LOAD S LEVER LOAD T Ø LINK LOAD T SLIDE CAM...

Page 51: ...t of Gear Loading Drive Refer to Timing Point 2 4 Aline dot of Gear Loading drive with mark of Slider Cam ˇ as shown in drawing Refer to Timing Point 3 LEVER LOAD S Œ LEVER LOAD T LEVER LOAD S LEVER LOAD T PIN A PIN C PIN B PIN D ˇ SLIDER CAM TIMING POINT 2 TIMING POINT 1 TIMING POINT 3 1 2 10 Lever Pinch Drive Lever Tension Drive Removal 1 Remove the Lever Pinch Drive Œ Lever Tension Drive Œ LEVE...

Page 52: ...n Ass y seated Rotate stopper of Main Base to the Mark B Œ SPRING TENTION LEVER STOPPER MARK B A LEVER TENTION ASS Y ˇ BAND BRAKE ASS Y 1 2 12 Lever Brake S T Ass y Removal 1 Release the Hook A and the Hook B C in the direction of arrow as shown in Fig 1 17 2 Lift the Lever S T Brake Ass y Œ with spring brake ˇ Assembly 1 Assembly the Lever S Brake Ass y Œ on the Main Base 2 Assembly the Lever T B...

Page 53: ...in the direction of arrow A B 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 Idle be sure to add oil in the boss of Lever Idle Œ 1 2 14 Disk S T Reel Removal 1 Lift the Disk S T Reel Œ GEAR IDLE GEAR IDLE Œ LEVER IDLE A HOOK C B Fig 1 18 Gear Idle Ass y Removal ...

Page 54: ...ion of arrow as shown Fig 1 21 and lift the Lever Up Down Ass y Œ 2 Lift the Gear Center Ass y Assembly 1 Insert the Lever Up Down Ass y Œ in the rectan gular holes on Main Base as shown in Fig 1 22 2 Lift the Lever Up Down Ass y Œ about 35 Refer to Fig 1 22 3 Insert Ring of the Gear Center Ass y in the Guide of the Lever Up Down Ass y Œ 4 Insert the Gear Center Ass y in the post on Main Base 5 Pu...

Page 55: ...e extreme care not to touch the grease on the Roller Pinch 2 When reinstalling be sure to apply grease on the post pinch roller ˇ SPRING PINCH DRIVE Œ LEVER UNIT PINCH ASS Y PLATE JOINT Fig 1 23 Guide Cassette Door Removal Fig 1 24 Lever Unit Pinch Ass y Plate Joint Spring Pinch Drive Removal 1 2 17 Guide Cassette Door Removal 1 Lift the Hook A 2 Rotate the Guide Cassette Door Œ in the direction o...

Page 56: ...e direction of arrow A Note 1 Take extreme care not to get grease on the tape Guide Post 2 After reinstalling check the bottom side of the Post 9 Guide to the top side of Main Base Œ SPRING 9 GUIDE LEVER 9 GUIDE ASS Y A B Fig 1 25 Lever 9 Guide Ass y Removal 1 2 20 FE Head Removal 1 Remove the screw Œ 2 Lift the FE Head Œ FE HEAD Fig 1 26 FE Head Removal ...

Page 57: ...connector of ACE Head Ass y 2 Remove the screw Œ 3 Lift the ACE Head Ass y Œ SCREW HEAD ACE ASS Y 1 2 22 Slider S T Ass y Removal 1 Move the Slider S T Ass y Œ to slot and then lift it to remove Refer to arrow Œ SLIDER S ASS Y SLIDER T ASS Y Fig 1 27 ACE Head Removal Fig 1 28 Slider S T Ass y Removal ...

Page 58: ... Œ Note 1 Take care not to touch the Cylinder Ass y ˇ and the tape guide post at reinstalling 2 When reinstalling Don t push down too much on Screw Driver Œ 3 SCREWS PLATE GROUND DECK ˇ CYLINDER ASS Y Fig 1 29 Plate Ground Deck Cylinder Ass y Removal 1 2 24 Belt Pulley Removal 1 Remove the Belt Pulley Œ Note Take extreme care not to get grease on Belt Pulley Œ at assembling or reassembling Œ BELT ...

Page 59: ... DAMPER CAPSTAN ˇ MOTOR CAPSTAN ASS Y 1 2 27 How to Eject the Cassette Tape If the unit does not operate on condition that is inserted into housing ass y 1 Turn the Gear worm Œ clockwise with screw driver Refer to arrow Other method Remove the Screw of Motor Load Ass y Separate the Motor Load Ass y Œ GEAR WORM Fig 1 32 Damper Capstan Motor Capstan Ass y Removal Fig 1 33 2 When Slider S T are appro...

Page 60: ... 8 GUIDE SHAFT CAPSTAN 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 SLEEVE TENSION POST CENTER LEVER IDLE BOSS 2Point 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 O O O O O O O O GEAR I...

Page 61: ...1 18 Samsung Electronics Disassembly and Reassembly MEMO ...

Page 62: ...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 63: ... turn the screw A tilt adjust on the ACE head ass y 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 2 Alignment ...

Page 64: ...t of the 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 al...

Page 65: ...he unit using 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 observ...

Search results

Summary of Contents for SV-G180UM

Reviews:

Related manuals for SV-G180UM

Brands by name

Popular brands

Samsung SV-G180UM, Service Manual

Search results

Summary of Contents for SV-G180UM

Reviews:

Related manuals for SV-G180UM

Brands by name

Popular brands