Page of 64
SERVICE
For mechanical disassembly and adjustment, refer to the "Mechanical Manual"
(DX7-R/RC, DX8-R/RC
VIDEO CASSETTE RECORDER
SV-A20GK/SV-A60GK
SV-200G/SV-400G
SV-A40GK/SV-A80GK
SV-205G/SV-405G
© Samsung Electronics Co., Ltd. JUL. 1997
VIDEO CASSETTE RECORDER
SV-A20GK/SV-200G
SV-A40GK/SV-205G
SV-A60GK/SV-400G
SV-A80GK/SV-405G
AC68-20316A).
Manual
CONTENTS
Comparison Chart
9. PCB Diagrams
10. Wiring Diagram
PAL
AC68-20332A

   Related Manuals for Samsung SV-A20GK

   Summary of Contents for Samsung SV-A20GK

  • Page 1

    4. Disassembly and Reassembly 5. Alignment and Adjustment SV-A20GK/SV-A60GK SV-200G/SV-400G 6. Exploded View and Parts List 7. Electrical Parts List 8. Block Diagrams 9. PCB Diagrams SV-A40GK/SV-A80GK 10. Wiring Diagram SV-205G/SV-405G 11. Schematic Diagrams © Samsung Electronics Co., Ltd. JUL. 1997 AC68-20332A...

  • Page 2: Precautions

    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 3

    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 4: Reference Information

    2) If tape control signal is not connected to the jig, the VCR must be operated in SP mode. 2-1-2 Servicing Jig Jig Item Part No. Connects the deck ass’y to the main PCB connecting cable. X-5 Chassis Jig 68140-500-013 Samsung Electronics...

  • Page 5

    (two point) at service 2. Remove the deck assÕy from main PCB (See Page option(W750) on the function-timer PCB. 4-5 of service manual). (see diagram below). SV-A20GK/A60GK SV-200G/400G Function-Timer (Component side) SV-A40GK/A80GK SV-205G/405G Function-Timer (Component side) Note : After completing repairs, SW715 on the function PCB in order to reset.

  • Page 6

    CONNECTS TO THE ASS'Y MAIN CN601. CONNECTS TO THE CAPSTAN MOTOR CONNECTOR OF ASS'Y FULL DECK. CONNECTS TO THE LOADING MOTOR CONNECTOR OF ASS'Y FULL DECK. ASS'Y FULL DECK ASS'Y MAIN CN604 CN605 CN603 CN601 1 SCREW (1-3X10) 2 SCREWS (2-3X10) Samsung Electronics...

  • Page 7

    Reference Information MEMO Samsung Electronics...

  • Page 8: Product Specifications And

    42 dB min (IHF A filter) Frequency response 100Hz-8KHz Power requirement 230V (AC 50/60 Hz) Power consumption Approx. 18 watts Operation temperature 41°F-104°F (5°C-40°C) Operation humidity 10%-75% Weight 4.4 Kg (net) Dimensions (W x H x D) 380 x 90.5 x 310 mm Samsung Electronics...

  • Page 9

    AUDIO JUST FRONT TAPE SHOW REAR SHUTTLE SLOW REMARK DUBBING JACK SPEED VIEW MODEL SV-A20GK/SEH (SV-200G) 1 SCART SV-A20GK/POL (SV-200G) 1 SCART SV-A40GK/SEH (SV-205G) 1 SCART SV-A40GK/POL (SV-205G) 1 SCART SV-A60GK/SEH (SV-400G) 1 SCART SP/LP SV-A60GK/POL (SV-400G) 1 SCART SP/LP...

  • Page 10: Disassembly And Reassembly

    4-1 Cabinet Assembly Note : Disassemble in the order shown. Reassemble in reverse order. 4-1-1 Cabinet Top removal 1. Remove 5 screws and slide the top cabinet to the rear to remove. REMOVE 5 SCREWS Fig. 4-1 Cabinet Top removal Samsung Electronics...

  • Page 11

    Disassembly and Reassembly 4-1-2 Bottom cover removal 1. Remove 2 screws. 2. Lift up the bottom cover toward arrow ÒAÓ. SV-A20GK/SV-A60GK SV-200G/SV-400G REMOVE 2 SCREWS (BH;1-3X12 YELLOW) "A" Lift up the bottom cover in the direction of arrow "A". SV-A40GK/SV-A80GK...

  • Page 12

    2. Release 4 hooks on the top side and 3 hooks on the bottom side and then, pull the assÕy front panel to remove. RELEASE 4 HOOKS REMOVE KNOB-SHUTTLE (Top view) RELEASE 3 HOOKS (Bottom view) Fig. 4-3 Ass’y Front Panel removal Samsung Electronics...

  • Page 13

    Disassembly and Reassembly 4-1-4 Ass’y Function-Timer removal 1. Release 5 hooks and remove the assÕy function-timder. Note : Take extreme care not to damage the PCB when removing it. SV-A20GK/SV-A60GK SV-200G/SV-400G FRONT A/V OPTION RELEASE 5 HOOKS SV-A40GK/SV-A80GK SV-205G/SV-405G RELEASE 5 HOOKS Fig.

  • Page 14

    (BH;2-3X12 YELLOW) ASS'Y FULL DECK CONNECTOR BOARD ASS'Y ASS'Y MAIN RELEASE 1 TAB FRAME REMOVE 2 SCREWS (BH;2-3X12 YELLOW) RELEASE 1 HOOK BOTTOM COVER REMOVE 2 SCREWS REMOVE 2 SCREWS (BH;2-3X12 YELLOW) (BH;2-3X12 YELLOW) Fig. 4-5 Chassis Removal Samsung Electronics...

  • Page 15

    Disassembly and Reassembly 4-2 Circuit Board Locations SV-A20GK/SV-A60GK SV-200G/SV-400G Fig. 4-6 Circuit Board Locations Samsung Electronics...

  • Page 16

    Disassembly and Reassembly SV-A40GK/SV-A80GK SV-205G/SV-405G Fig. 4-6 Circuit Board Locations Samsung Electronics...

  • Page 17

    Disassembly and Reassembly MEMO Samsung Electronics...

  • Page 18: Alignment And Adjustment

    PLAY PLAY STOP STOP MENU MENU Q-PRO Q-PRO SOFTEN SHARPEN TV/VCR SOFTEN SHARPEN TV/VCR SLOW A.DUB SLOW A.DUB PICTURE PICTURE AUDIO ADD BUTTON(AUDIO) TEST BUTTON IS HIDDEN BEHIND OF INLAY. Fig. 5-2 Remote Control Ass’y for X-7/X-8 Chassis Samsung Electronics...

  • Page 19: Mechanical Adjustment

    5-2-1 The number and position of test point Test point : TP02 (CTL Pulse) TP03 (H’D S/W -Trigger) TP04 (V. Envelope) TP05 (Audio out) AUDIO OUT H’D S/W -TRIGGER CTL PULSE V. ENVELOPE Fig. 5-3 The position of test point (Main PCB-Component side) Samsung Electronics...

  • Page 20

    2) Set the tracking preset using the ÒFINE (Tracking, Fig. 5-4 Tracking preset adjustment TRK) button of remote control. REMOTE 3) After adjustment is completed, press the CONTROL PULSE REMOVE BUTTONS ÒPOWERÓ button to release. PUSH TRACKING TRACKING PUSH Fig. 5-5 Tracking preset adjustment Samsung Electronics...

  • Page 21

    1) Simultaneously press the ÒTESTÓ button and Ò5Ó button in PB mode. This will adjust the tracking center automatically. 2) Set the tracking preset using the ÒFINE (Tracking, TRK) button of remote control. 3) After adjustment is completed, press the ÒPOWERÓ button to release. Samsung Electronics...

  • Page 22: Electrical Adjustment

    1) Insert an SP tape into the housing assÕy. 2) Press the ÒPLAYÓ button. 3) Press the ÒINPUTÓ button and Ò3Ó button simultaneously. 4) This will adjust the head S/W point adjustment automatically. 5) After the adjustment is completed, press ÒPOWERÓ button to release. Samsung Electronics...

  • Page 23

    5. Apply the output of attenuator to the ANT IN ANT IN terminal of VCR. DC Voltmeter TP07 6. Set the channel of VCR to CH 2. 7. Connect DC voltmeter to TP07. 8. Adjust VR401 for DC 3.7 ± 0.1V. VR401 Main PCB (Component side) Samsung Electronics...

  • Page 24

    Eject Cassette IN Cassette IN Unload Unload R. PS R. PS, Z-R. PS R. Slow Pinch Roller off Position Still Still, Slow, F-ADV Play PB, T-Stop, REC, Pause, F. PS, Z-FPS Stop Stop, Power off FF/REW FF, REW Samsung Electronics...

  • Page 25

    Alignment and Adjustment MEMO Samsung Electronics...

  • Page 26: Exploded View And Parts List

    Mechanical Parts (Bottom Side) - - - - - - - - - - - - - - - - - - - - - - - Housing Assembly - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Samsung Electronics...

  • Page 27

    S.N.A SP602 SC301 LD601A SV-A20GK/SV-A60GK SV-200G/SV-400G 601 (S.N.A) PT602A SP601 PT601A 670 (S.N.A) SV-A40GK/SV-A80GK SV-205G/SV-405G S.N.A : SERVICE NOT AVAILABLE...

  • Page 28

    Exploded View and Parts List Loc. No Part No Description and Specification Remark DO NOT ORDER ASSY-FULL DECK (DX7-R) S.N.A AC98-11214B ASSY-PANEL FRONT;SV-A20GK/SEH,SV-200G/SEH SESA LOCAL AC98-11217G ASSY-PANEL FRONT;SV-A20GK/POL,SV-200G/POL SESA LOCAL AC98-11217J ASSY-PANEL FRONT;SV-A40GK/SEH,SV-205G/SEH SESA LOCAL AC98-11217F ASSY-PANEL FRONT;SV-A40GK/POL,SV-205G/POL SESA LOCAL AC98-11214C ASSY-PANEL FRONT;SV-A60GK/SEH,SV-400G/SEH...

  • Page 29

    T220 T221 T300 T303 T224 T216 T233 T302 DX7-R DX7-RC T204 DX8-R DX8-RC T237 T222 T230 T228 T309 T229 T218 T201 T231 T203 T207 T209 T212 T234 T219 T240 T233 T217 T238 T239 T232 T225 T210 T227 T208 T226 T236 T211 T223 T202...

  • Page 30

    STOPPER-TAPE;POM M90-44,OD7,T1.5,NTR,X-5,- (OPTIONAL) T238 AC61-60132A SPRING ARM PINCH;CS,SUS304WPB,PI0.4,D7.1,OD7.9, T239 AC66-30132A LEVER JOG-ASSY;-,-,-,-.X5,- (DX8-R/RC ONLY) T240 AC61-60505A SPRING-REC S/W;-,ES,SUS304 WPB,PI0.29,PI3.5,- T300 AC96-10011L ASSY-CYLINDER;CX5-S2P/DLC,- 2 HEAD ONLY AC96-10474W ASSY-CYLINDER;-,CX5-D4P/F/DLC 4 HEAD ONLY T302 AC31-12001M MOTOR-CYLINDER;E20XL03,-,- T303 AC33-12004S HEAD-BRUSH(ASSY);SECC20/20+CARBON,-,-,-,- T309 AC73-12001A RETRINER-RUBBER(ASSY);SECC+SILICON,-,-,- Samsung Electronics...

  • Page 31

    B257 B256 B255 B258 B254 B261 B264 B251 B263 B268 B267 B266 B265 B259 B253 B260 B252 B262...

  • Page 32

    GEAR- WORM WHEEL;POM SW-01,M0.55/M1,Z57/Z10,GEA B261 AC66-30011A LEVER- SHIFT;PBT2002K,T10.9,L35,-,-,- B262 AC66-30012A LEVER- IDELR CHANGE;PBT330,T3.3,L50,-,W6.0,- B263 AC61-60111A SPRING-LEVER SHIFT;TS,SWPB,PI0.7,D5.5,L13.8(OD6.9 B264 AC59-90001A UNIT-LOADING ASSY;X-5,-,- B265 66823-0060-00 MOTOR-LOADING ASSY;POM+RF370C X-5 B266 AC66-20039A GEAR- WORM LO;PBT 2002K,-,-,-,D4.5,3,- B267 AC61-20224A HOLDER SHAFT;POM M90-44,T1.25,NAT,PI5XH5.5, B268 AC66-30149A BRAKE CAPSTAN-ASSY;POM,-,-,-,X5,- Samsung Electronics...

  • Page 33

    Exploded View and Parts List 6-4 Housing Assembly H510 H520 H521 H533 H522 H530 H526 H532 H524 H531 H535 H540 H545 H544 H541 H550 H542 H543 H500 Samsung Electronics...

  • Page 34

    LEVER- DOOR;LUCELN109-LD,T5,L74.3,W21.1,-, H540 62203-0104-00 CHASSIS-SIDE R(ASSY);ABS X5FL0505A X-5 H541 AC61-10003A CHASSIS- SIDE R;ABS HF-380,-,T10,BLK,-,X5,BLK H542 AC66-80008A SLIDER DAMPER;LUCEL N109-LD,T4,L87,-,-,- H543 AC61-60120A SPRING-SLIDE DAMPER;ES,SUS 304WPB,PI0.4,D3.8,L25(O H544 AC66-30016A LEVER- LID OPENER;LUCEL N109-LD,T5.0,L34.7,W16.6 H545 AC61-60123A SPRING-LID OPENER;TS,SWPB,PI0.55,D8.9,L15(OD10), H550 61403-0073-00 SHAFT-ARM(ASSY);SUM24L X5FL0405A X-5 Samsung Electronics...

  • Page 35

    Exploded View and Parts List MEMO 6-10 Samsung Electronics...

  • Page 36: Electrical Parts List

    IC;KA7809,-,- SME LOCAL C604 2203-002188 C-CERAMIC,CHIP;10NF,+80-20%,16V,Y5V,TP,2012,- SME LOCAL IC1S2 B4161-0030 PHOTO-COUPLER;PS2561-1 ST DIP C605 2203-001577 C-CERAMIC,CHIP MELF;150PF,10%,50V,Y5E,TP SME LOCAL IC1S3 AC14-12006D IC;KA431Z,TO-92,TAPING SME LOCAL C606 2202-000797 C-CERAMIC,MLC-AXIAL;10NF,30%,16V,Y5P,TP,3.5X19,- SME LOCAL L1S01 AC29-30050A FILTER-LINE NOISE;-,400UH,-,250V,- C607 2203-002188 C-CERAMIC,CHIP;10NF,+80-20%,16V,Y5V,TP,2012,- SME LOCAL Samsung Electronics...

  • Page 37

    Q6102 0501-000398 TR-SMALL SIGNAL;KSC945,NPN,250MW,TO-92,TP SME LOCAL C651 2401-001511 C-AL;47UF,20%,16V,GP,-,6X7,5 SME LOCAL Q6106 0501-000398 TR-SMALL SIGNAL;KSC945,NPN,250MW,TO-92,TP SME LOCAL C652 2203-001557 C-CERAMIC,CHIP;100NF,+80-20%,25V,Y5V,TP,2012, SME LOCAL Q6108 0501-000303 TR-SMALL SIGNAL;KSA733-Y,PNP,250MW,TO-92,-,120 SME LOCAL C653 2203-001557 C-CERAMIC,CHIP;100NF,+80-20%,25V,Y5V,TP,2012, SME LOCAL R601 2001-000832 R-CARBON;510OHM,5%,1/8W,AA,TP,1.8X3.2MM SME LOCAL Samsung Electronics...

  • Page 38

    SME LOCAL W144 2001-000429 R-CARBON;1KOHM,5%,1/8W,AA,TP,1.8X3.2MM SME LOCAL R636 2001-000281 R-CARBON;100OHM,5%,1/8W,AA,TP,1.8X3.2MM SME LOCAL XT601 2801-003293 CRYSTAL-UNIT;10MHZ,50PPM,28-AAA,16PF,50OHM, R637 2001-000429 R-CARBON;1KOHM,5%,1/8W,AA,TP,1.8X3.2MM SME LOCAL XT602 64539-021-009 CRYSTAL;32.768KHZ SME LOCAL R638 2001-000429 R-CARBON;1KOHM,5%,1/8W,AA,TP,1.8X3.2MM SME LOCAL XT6102 2801-003311 CRYSTAL-UNIT;17.734475MHZ,50PPM,28-AAA,16PF R640 2001-000429 R-CARBON;1KOHM,5%,1/8W,AA,TP,1.8X3.2MM SME LOCAL Samsung Electronics...

  • Page 39

    C362 2401-001912 C-AL;1UF,20%,50V,GP,BK,5X11MM,2MM SME LOCAL IC303 1209-001023 IC-DELAY LINE;SS23377M,SOP,14P,225MIL,PLASTI C363 2203-001608 C-CERAMIC,CHIP;22NF,+80-20%,50V,Y5V,TP,2012,- L301 AC27-92001B COIL-PEAKING AXIAL;BAL04ST101K,-,-,-,- SME LOCAL C364 2401-001912 C-AL;1UF,20%,50V,GP,BK,5X11MM,2MM SME LOCAL L303 2701-000206 INDUCTOR-AXIAL;56UH,5%,2.4X3.4MM SME LOCAL C366 2202-000797 C-CERAMIC,MLC-AXIAL;10NF,30%,16V,Y5P,TP,3.5X19,- SME LOCAL L304 2701-000206 INDUCTOR-AXIAL;56UH,5%,2.4X3.4MM SME LOCAL Samsung Electronics...

  • Page 40

    SME LOCAL R337 2001-000472 R-CARBON;2.7KOHM,5%,1/8W,AA,TP,1.8X3.2M C426 2203-001557 C-CERAMIC,CHIP;100NF,+80-20%,25V,Y5V,TP,2012, SME LOCAL R338 2001-000734 R-CARBON;4.7KOHM,5%,1/8W,AA,TP,1.8X3.2M SME LOCAL C427 2401-001975 C-AL;47UF,20%,16V,GP,TP,5X11MM,5 SME LOCAL R339 2001-000429 R-CARBON;1KOHM,5%,1/8W,AA,TP,1.8X3.2MM SME LOCAL C428 2203-002188 C-CERAMIC,CHIP;10NF,+80-20%,16V,Y5V,TP,2012,- SME LOCAL R340 2001-000449 R-CARBON;2.2KOHM,5%,1/8W,AA,TP,1.8X3.2M SME LOCAL C429 2201-000796 C-CERAMIC,DISC;10NF,10%,50V,Y5P,TP,6.5X3,5 Samsung Electronics...

  • Page 41

    SME LOCAL Q802 0501-000303 TR-SMALL SIGNAL;KSA733-Y,PNP,250MW,TO-92,-,120 SME LOCAL R4A6 2007-001555 R-CHIP,MELF;27KOHM,5%,1/8W,DB,BK,2012 SME LOCAL Q803 0501-000398 TR-SMALL SIGNAL;KSC945,NPN,250MW,TO-92,TP SME LOCAL R4A7 2007-001555 R-CHIP,MELF;27KOHM,5%,1/8W,DB,BK,2012 SME LOCAL Q812 0504-000203 TR-DIGITAL;KSR1004,NPN,300MW,47K-47K,TO-9 SME LOCAL R4A8 2001-000595 R-CARBON;3.3MOHM,5%,1/8W,AA,TP,1.8X3.2M SME LOCAL Q813 0504-000142 TR-DIGITAL;KSR2001,PNP,300MW,4.7K-4.7K,TO SME LOCAL Samsung Electronics...

  • Page 42

    D741 0401-000101 DIODE-SWITCHING;1N4148,100V,200MA,500MW,4NS SME LOCAL REMOCON-ASSY D742 0401-000101 DIODE-SWITCHING;1N4148,100V,200MA,500MW,4NS SME LOCAL AC59-10345A SV-A40GK/SV-A80GK/SV-205G/SV-405G D743 0401-000101 DIODE-SWITCHING;1N4148,100V,200MA,500MW,4NS SME LOCAL AC59-10329N SV-A20GK/SV-A60GK/SV-200G/SV-400G D744 0401-000101 DIODE-SWITCHING;1N4148,100V,200MA,500MW,4NS SME LOCAL 64043-0166-00 DOOR-BATTERY;ABS94HB T2 D/GRY NR-3346 D745 0401-000101 DIODE-SWITCHING;1N4148,100V,200MA,500MW,4NS SME LOCAL 2401-001954 C-AL;4.7UF,20%,50V,GP,BK,5X11MM,5 SME LOCAL D746 0401-000101 DIODE-SWITCHING;1N4148,100V,200MA,500MW,4NS SME LOCAL...

  • Page 43

    Electrical Parts List MEMO Samsung Electronics...

  • Page 44: Block Diagrams

    Video - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Samsung Electronics...

  • Page 45

    Block Diagrams Overall Block Diagram Samsung Electronics...

  • Page 46

    Block Diagrams System Control Samsung Electronics...

  • Page 47

    Block Diagrams Video Samsung Electronics...

  • Page 48

    10. Wiring Diagram Samsung Electronics 10-1...

  • Page 49: Schematic Diagrams

    System Control/Servo - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 11-6 11-3 Audio/Video (SV-A20GK/SV-A40GK/SV-200G/SV-205G) - - - - - - - - - - - - - - 11-8 11-4...

  • Page 50: 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 (Component Side) (Conductor Side) 11-2 Samsung Electronics...

  • Page 51

    Schematic Diagrams 11-1 S.M.P.S/POWER (OPTION) (OPTION) Samsung Electronics 11-3...

  • Page 52

    Schematic Diagrams 11-2 System Control/Servo 11-4 Samsung Electronics...

  • Page 53

    Schematic Diagrams IC601 HD6433977-RA10F Samsung Electronics 11-5...

  • Page 54

    Schematic Diagrams PB Y PROCESS REC LINEAR AUDIO REC Y PROCESS 11-3 Audio/Video (SV-A20GK/A40GK/SV-200G/205G) REC C PROCESS PB C PROCESS PB LINEAR AUDIO 11-6 Samsung Electronics...

  • Page 55

    Schematic Diagrams IC302 LA7411 IC301 SS11511M IC303 SS23377M Samsung Electronics 11-7...

  • Page 56

    Schematic Diagrams PB Y PROCESS REC LINEAR AUDIO REC Y PROCESS 11-4 Audio/Video (SV-A60G/A80G/SV-400G/405G) REC C PROCESS PB C PROCESS PB LINEAR AUDIO 11-8 Samsung Electronics...

  • Page 57

    Schematic Diagrams IC302 LA7416 IC301 SS11511M IC303 SS23377M Samsung Electronics 11-9...

  • Page 58

    Schematic Diagrams 11-5 SYSCON/SERVO SMPS/POWER 11-10 Samsung Electronics...

  • Page 59

    Schematic Diagrams IC401 TDA9800 Samsung Electronics 11-11...

  • Page 60

    Schematic Diagrams 11-6 11-12 Samsung Electronics...

  • Page 61

    Schematic Diagrams 11-7 Samsung Electronics 11-13...

  • Page 62

    Schematic Diagrams 11-8 Function-Timer (SV-A20GK/SV-A60GK/SV-200G/SV-600G) SYSCON/SERVO CN601 11-14 Samsung Electronics...

  • Page 63

    Schematic Diagrams 11-9 Function-Timer (SV-A40GK/SV-A80GK/SV-205G/SV-405G) SYSCON/SERVO CN601 Samsung Electronics 11-15...

  • Page 64

    Schematic Diagrams 11-11 Remote-Control 11-16 Samsung Electronics...

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