File information: | |
File name: | SV-A12G.rar |
Size: | 2041 kB |
Extension: | |
Mfg: | Samsung |
Model: | SV-A12G 🔎 SVA12G |
Original: | SVR-17C 🔎 |
Descr: | VCR and players Samsung SV-A12G, SV-A12P, SVR-17C (service manual) |
Group: | Electronics > Consumer electronics > Video recorders VCR |
Uploaded: | 09-06-2004 |
User: | plamensl |
Multipart: | 0 1 |
Information about the files in archive: | ||
Decompress result: | OK | |
Extracted files: | 11 | |
File name 1.PDF VIDEO CASSETTE PLAYER VIDEO CASSETTE LINE RECORDER SV-A12G/SP-A12G PAL SERVICE VIDEO CASSETTE PLAYER/VIDEO CASSETTE LINE RECORDER Manual CONTENTS For mechanical disassembly and adjustment, refer to the "Mechanical Manual" (DX7-R/DX-7RC, DX8-R/DX-8RC AC68-20316A). 1. Precautions 2. Reference Information 3. Product Specifications 4. Disassembly and Reassembly 5. Alignment and Adjustment 6. Exploded View and Parts List 7. Electrical Parts List 8. Block Diagrams 9. PCB Diagrams 10. Wiring Diagram 11. Schematic Diagrams © Samsung Electronics Co., Ltd. MAY. 1997 AC68-20359A | ||
File name 10.PDF 10. Wiring Diagram ASS'Y MAIN Samsung Electronics ASS'Y FUNCTION 10-1 | ||
File name 11.PDF 11. Schematic Diagrams Page 3 Block Identification of Main PCB - - - - - - - - - - - - - - - 11-2 11-1 11-2 11-3 11-4 11-5 11-6 S.M.P.S/Power - - - - - - - - - - - - - - - - - - - - - - - - - 11-3 System Control/Servo - - - - - - - - - - - - - - - - - - - 11-4 Audio/Video - - - - - - - - - - - - - - - - - - - - - - - - - - 11-5 I/O - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 11-6 Function - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 11-7 Remote-Control - - - - - - - - - - - - - - - - - - - - - - 11-8 Samsung Electronics 11-1 Schematic Diagrams Note For schematic Diagram - Resistors are in ohms, 1/8W unless otherwise noted. - Circled numbers refer to waveforms. Special note : Most semiconductor devices are electrostatically sensitive and therefore require the special handling techniques described under 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 components. Use only the same type. 3 Block Identification of Main PCB (Component Side) 11-2 (Conductor Side) Samsung Electronics Schematic Diagrams 11-1 S.M.P.S/POWER Samsung Electronics 11-3 Schematic Diagrams 11-2 System Control/Servo CYLINDER SPEED CONTROL CYLINDER PHASE CONTROL CAPSTAN SPEED CONTROL CAPSTAN PHASE CONTROL 11-4 Samsung Electronics Schematic Diagrams 11-3 Audio/Video PB Y PROCESS PB C PROCESS REC Y PROCESS REC C PROCESS PB AUDIO PROCESS REC AUDIO PROCESS Samsung Electronics 11-5 Schematic Diagrams 11-4 I/O PB VIDEO PROCESS PB AUDIO PROCESS REC VIDEO PROCESS REC AUDIO PROCESS 11-6 Samsung Electronics Schematic Diagrams 11-5 Function Samsung Electronics 11-7 Schematic Diagrams 11-6 Remote-Control 11-8 Samsung Electronics | ||
File name 2.PDF 1. Precautions 1. Be sure that all of the built-in protective devices are replaced. Restore any missing protective shields. 2. When reinstalling the chassis and its assemblies, be sure to restore all pretective devices, including : control knobs and compartment covers. 3. Make sure that there are no cabinet openings through which people--particularly children --might insert fingers and contact dangerous voltages. Such openings include the spacing between the picture tube and the cabinet mask, excessively wide cabinet ventilation slots, and improperly fitted back covers. If the measured resistance is less than 1.0 megohm or greater than 5.2 megohms, an abnormality exists that must be corrected before the unit is returned to the customer. 4. Leakage Current Hot Check (See Fig. 1) : Warning : Do not use an isolation transformer during this test. Use a leakage current tester or a metering system that complies with American National Standards Institute (ANSI C101.1, Leakage Current for Appliances), and Underwriters Laboratories (UL Publication UL1410, 59.7). 5. With the unit completely reassembled, plug the AC line cord directly the power outlet. With the unitÕs AC switch first in the ON position and then OFF, measure the current between a known erath ground (metal water pipe, conduit, etc.) and all exposed metal parts, including : antennas, handle brackets, metal cabinets, screwheads and 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. 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. Device Under Test Test all exposed metal surfaces 2-Wire Cord Also test with plug reversed (using AC adapter plug as required) Earth Ground (Reading should not be above 0.5mA) Leakage Currant Tester Fig. 1-1 AC Leakage Test 7. 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. 8. High Voltage Limit : High voltage must be measured each time servicing is done on the B+, horizontal deflection or high voltage circuits. Heed the high voltage limits. These include the X-ray protection Specifications Label, and the Product Safety and X-ray Warning Note on the service data schematic. 9. Some semiconductor (Òsolid stateÓ) devices are easily damaged by static electricity. Such components are called Electrostatically Sensitive Devices (ESDs); examples include integrated circuits and some field-effect transistors. The following techniques will reduce the occurrence of component damage caused by static electricity. 10. Immediately before handling sny semiconductor components or assemblies, drain the electrostatic charge from your body by touching a known earth ground. Alternative | ||
File name 3.PDF 2. Reference Information 2-1 Servicing Jigs and Special Tools 2-1-1 Servicing guide 1. For this VCP chassis, the program switch and the 4. The X-5 chassis jig can be used for the following : sensors (start/end/reel) are located on the main PCB, not on the deck assÕy. 1) When repairing or confirming the operation of the deck assÕy. 2. As long as the deck assÕy is connected to the main 2) When replacing or repairing the components PCB, all repairs are possible. located under the deck assÕy. Important : In order to repair the main PCB 3) When repairing the function PCB. without the deck assÕy connected, the X-5 chassis jig should be used. 5. The X-5 chassis jig can not be used for the following : 3. To emulate the function of the sensors, plug the power cord to outlet with pressing SW711 on the 1) Repairing defects in the video section. function PCB. 2) Repairing defects in the audio section. 3) If the defect is related to tape speed. Note : Accurate repair may not be possible due to external noise between the deck assÕy and main PCB. 2-1-2 Servicing Jig Jig Item Part No. Use X-5 Chassis Jig 68140-500-013 Connects the deck ass'y to the main PCB connecting cable. Samsung Electronics 2-1 Reference Information 2-1-4 How to Connect X-5 chassis jig 1. Unplug the power cord from AC outlet. 3. To emulate the function of the sensors, plug the power cord to outlet with pressing SW711 on the 2. Remove the deck assÕy from main PCB (See Page function PCB (See diagram below). 4-4 of service manual). The location of SVC OPTION(SW711) is same on the function PCB regardless of model. Function (Component side) Note : After completing repairs, unplug and plug the power cord in order to reset. 4. Insert wafers of drum motor, capstan motor and 8. Simultaneously touch the start and end sensor loading motor on X-5 chassis jig into each of the LEDs on the PCB, so that the tape loads connectors of deck assÕy, and then secure with | ||
File name 4.PDF 3. Product Specifications and Comparison Chart 3-1 Product Specifications Design and specifications are subject to change without notice. Operation Format Video Recording System VHS PAL standard 2 Rotary Heads, Helical Scanning System Luminance : FM azimuth recording Color : Down converted subcarrier phase shifted CCIR Standard G, K PAL, MESECAM, NT 4.43, NT PB (NT 3.58 REC) 12.65 mm (1/2 inch) SP : (PAL) 23.39 mm/sec, (NTSC) 33.35 mm/sec SP : 4 hours (E-240 Tape) 100 sec ~ 4 min with E-180 Video : 2 Rotary Heads Audio/Control : 1 stationary head Erase : 1 full track erase head Description Television System Color System Tape Width Tape Speed Record/Playback Time F.F/REW Time Heads VIDEO Input Output Signal-to-Noise Ratio Horizontal Resolution Audio Input Output Signal-to-Noise Ratio Frequency Response Output Channel Power Requirement Power Consumption Operation Temperature Operation Humidity Weight Dimensions (W x H x D) Line : -8 dBm, 47 Kohm unbalanced Line : -8 ± 3 dBm, 1.5 Kohm unbalanced More than 39dB 100Hz ~ 8KHz(SP) Channels 30 ~ 39 (preset CH 36) AC 100 ~ 240V 50/60Hz, DC 12V (CAR BATTERY ONLY) Approx. 17 watts 41°F-104°F (5°C-40°C) 10%-75% 4.0 Kg 360 x 92 x 309 mm 0.5 to 2.0 Vp-p : 75 ohm unbalanced 1.0 Vp-p : 75 ohm unbalanced Better than 43 dB (SP) More than 240 lines (SP) Samsung Electronics 3-1 Product Specifications 3-2 Comparison Chart FUNCTION LINE RECORD MODEL SV-A12G SP-A12G O X REMARK 3-2 Samsung Electronics | ||
File name 5.PDF 4. Disassembly and Reassembly 4-1 Cabinet Assembly Note : Disassemble in the order shown. Reassemble in reverse order. 4-1-1 Top Cabinet removal 1. Remove 5 screws and slide the top cabinet to the rear to remove. REMOVE 5 SCREWS Fig. 4-1 Top Cabinet removal Samsung Electronics 4-1 Disassembly and Reassembly 4-1-2 Bottom cover removal 1. Remove 1 screw. 2. Lift up the bottom cover toward arrow ÒAÓ. 1 REMOVE 1 SCREW (BH;1-3X12 YELLOW) "A" 2 LIFT UP THE BOTTOM COVER IN THE DIRECTION ARROW "A" Fig. 4-2 Bottom Cover Removal 4-2 Samsung Electronics Disassembly and Reassembly 4-1-3 Ass'y Front Panel removal 1. Remove the knob-shuttle. 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 TABS (Top view) RELEASE 3 TABS (Bottom view) Fig. 4-3 Ass'y Front Panel removal Samsung Electronics 4-3 Disassembly and Reassembly 4-1-4 Ass'y Function removal 1. Release 5 hooks and remove the assÕy function. Note : Take extreme care not to damage the PCB when removing it. RELEASE 4 TABS Fig. 4-4 Ass'y Function Removal 4-4 Samsung Electronics Disassembly and Reassembly 4-1-5 Chassis Removal 1. Remove 2 screws holding the frame. 2. Remove 2 screws holding the connector board assÕy. 3. Remove 2 screws holding the housing assÕy. 4. Remove 2 screws holding the assÕy full deck. 5. Release 2 hooks holding the assÕy main. 6. Lift the assÕy full deck up. 7. Lift the assÕy main up to remove. Note : 1. When removing chassis, take extreme care not to damage the main PCB front. 2. When reinstalling the deck on the main PCB, take extreme care not to damage the sensor. 3 REMOVE 2 SCREWS (BH;2-3X12 YELLOW) 4 REMOVE 2 SCREWS (BH;2-3X12 YELLOW) ASS'Y FULL DECK 2 REMOVE 2 SCREWS (BH;2-3X12 YELLOW) CONNECTOR BOARD ASS'Y ASS'Y MAIN FRAME 5 RELEASE 2 HOOKS 1 REMOVE 2 SCREWS (BH;2-3X12 YELLOW) Fig. 4-5 Chassis Removal Samsung Electronics 4-5 Disassembly and Reassembly 4-2 Circuit Board Locations ASS'Y MAIN Fig. 4-6 Circuit Board Locations (SV-A10G/SP-A10G) 4-6 Samsung Electronics ASS'Y FUNCTION | ||
File name 6.PDF 5. Alignment and Adjustment 5-1 Mechanical Adjustment Reference : For other mechanical adjustments except A/C Head position (X-point) adjustment, refer to the mechanical manual (DX7-R/DX7-RC/DX8-R/DX8-RC, AC68-20316A). Test point : TP05 (Envelope) TP04 (H'D S/W -Trigger) TP03 (CTL Pulse) TP06 (Audio out) Test tape : PAL Color bar Mono scope Blank tape (E-240) 5-1-1 A/C Head Point (X-point) Adjustment 1. Playback the mono scope alignment tape. 2. Connect CH-1 scope probe to TP03 and CH-2 scope probe to TP04. And then, trigger head switching pulse. 3. Set tracking preset to 1msec using the ÒTrackingÓ button / of remote control. (Refer to Fig. 1 and 2) 4. Connect CH-1 scope probe to TP05 and the CH-2 to ÒHÕD S/WÓ trigger on CH-1. 5. Insert the adjusting driver(+) into X-point adjusting gear. Adjust the driver in either direction for maximum envelope waveform. Note : Since the adjusting gear unit may be damaged, do not adjust by force when adjusting the X-point using the adjusting driver(+). After turn the X-point adjusting screw(D) counterclockwise a little, perform the adjustment. After adjustment is completed, tighten the screw. (Refer to Fig. 3) | ||
File name 7.PDF 6. Exploded View and Parts List Page 6-1 6-2 6-3 6-4 Cabinet Assembly - - - - - - - - - - - - - - - - - - - - - - 6-2 Mechanical Parts (Top Side) - - - - - - - - - - - - - - - - 6-4 Mechanical Parts (Bottom Side) - - - - - - - - - - - - - 6-6 Housing Assembly - - - - - - - - - - - - - - - - - - - - - - - 6-8 Samsung Electronics 6-1 6-2 155 157 153 155 SC301 108 PT601A S.N.A LD601A PT602A 155 661 S601A S602A 601(S.N.A) 670(S.N.A) 663 22 21 109 1 6-1 Cabinet Assembly Exploded View and Parts List Samsung Electronics 157 S.N.A : SERVICE NOT AVAILABLE Exploded View and Parts List Loc. No Part No 1 21 22 108 109 153 155 157 158 601 661 663 670 LD601A PT601A PT602A S601A S602A SC301 DO NOT ORDER AC98-11213S AC64-50076E AC61-62003A AC61-12265A AC63-30078A AC60-12126A AC60-12134A AC60-10063A AC60-10063A DO NOT ORDER AC39-10019A 3711-002602 DO NOT ORDER AC61-22345A AC61-22344A AC61-22344A AC61-22321A AC61-22321A AC63-42222A Description and Specification ASSY-DECK (DX7-R) ASSY-PANEL FRONT;SV-A12G/SGE,M/GRAY DOOR-CASSETTE;-,ABS,94HB,-,-,-,-,SV-A12G/SGE SPRING;-,SUS304,(GE/RCA),-,-,-,CONNECTOR-BOARD(ASSY;HIPS94,HB,-,-,-,-,-,-,SV-11 COVER-BOTTOM;SECC,-,T0.5,NTR,-,-,SV-160X,SCREW-BH;-,BH,-,4*12,FE,FZY,-,-,SCREW-TAP BH;-,BH,-,2-4X16,-,FE SCREW-TAPTITE;BH,+,-,M3,L12,ZPC3,SWRCH18A SCREW-TAPTITE;BH,+,-,M3,L12,ZPC3,SWRCH18A ASSY-MAIN POWER CORD;KKP-419C,H03VVH2-F,VDE/KEMA-KE CONNECTOR-HEADER;NOWALL,40P,1R,1.5MM,STRAIGHT,SN ASSY-FUNCTION HOLDER-LED;POM,-,-,-,-,HOLDER-PHOTO;POM,-,-,-,-,HOLDER-PHOTO;POM,-,-,-,-,HOLDER-TR;POM,-,-,-,-,HOLDER-TR;POM,-,-,-,-,SHIELD-CASE P/AMP(AS;3516ET,T0.3,SIL,SV-80Z,- Remark (S.N.A) TSEC LOCAL TSEC LOCAL TSEC LOCAL TSEC LOCAL TSEC LOCAL (S.N.A) TSEC LOCAL (S.N.A) TSEC LOCAL TSEC LOCAL TSEC LOCAL TSEC LOCAL Note : Location number 1, 21 are only for model SV-A12G/SGE. Please, refer to the separate information for the other models combind. Samsung Electronics 6-3 6-4 T220 T221 T300 904 T303 919 T224 T216 DX7-R DX8-R T237 DX7-RC DX8-RC T222 T302 905 901 T309 912 T203 T209 920 T240 900 T239 O G G T217 901 T231 957 901 T234 T219 T233 T232 G T225 956 T210 956 T227 956 T236 T211 T223 T202 952 G T208 T226 T238 T230 T228 T233 T204 T218 T201 952 T207 T212 T229 6-2 Mechanical Parts (Top Side) Exploded View and Parts List Samsung Electronics Exploded View and Parts List Loc. No Part No 900 901 904 905 912 919 920 952 956 957 T201 T202 T203 T204 T207 T208 T209 T210 T211 T212 T216 T217 T218 T219 T220 T221 T222 T223 T224 T225 T226 T227 T228 T229 T230 T231 T232 T233 T234 T236 T237 T238 T239 T240 T300 T302 T303 T309 AC60-12091A AC60-10012A AC60-12125A AC60-12096A 67094-604-710 AC60-10004A AC60-10007A AC60-30018A AC60-30007A AC60-30008A AC66-10023A AC66-10022A AC66-30474A AC66-30148A AC66-30475A AC66-30476A AC61-60112A AC66-20073A AC66-20037A AC66-30073A AC61-60119A AC66-30470A AC61-62017A AC33-10003P AC66-82050A AC66-82059A AC33-10002E AC66-20065A AC33-10215A AC66-82045A AC66-30014A AC66-30099A AC66-30013A AC66-30003A AC61-60116A A | ||
File name 8.PDF 7. Electrical Parts List Loc. No Part No Description and Specification Remark 601 DO NOT ORDER ASSY-MAIN CORE-FERRITE BEAD;AA,3.6X1.2X5.7MM,1400,2900G INDUCTOR;70UH-M RT BFS3565R2F,-,-,-,C-AL;4.7UF,20%,50V,-,TP,6.3X7,5 C-AL;47UF,20%,16V,GP,TP,5X11MM,5 C-AL;47UF,20%,16V,GP,TP,5X11MM,5 C-AL;1UF,20%,50V,GP,TP,3X5,1MM C-AL;100UF,20%,25V,GP,-,6.3X11,2.5M C-CERAMIC,MLC-AXIAL;100NF,+80-20%,50V,Y5V,TP,3.5 C-AL;47UF,20%,16V,GP,TP,5X11MM,5 C-CERAMIC,MLC-AXIAL;100NF,+80-20%,50V,Y5V,TP,3.5 C-AL;10UF,20%,16V,GP,-,4X7,5 C-FILM,MPEF;100NF,20%,275V,TP,17.5X7X13.5, C-FILM,MPEF;100NF,20%,275V,TP,17.5X7X13.5, C-CERAMIC,DISC;2.2NF,10%,400V,Y5P,TP,12X7.5,7 C-CERAMIC,DISC;3.3NF,20%,400V,Y5P,TP,18X8,10 C-AL;82UF,20%,400V,GP,BK,22X25,10MM C-FILM,PEF;10NF,10%,630V,BK,16.5X9.5X5.7X C-CERAMIC,DISC;100PF,10%,1KV,Y5P,TP,6X5,5 C-CERAMIC,DISC;22NF,+80-20%,50V,Y5V,TP,8.0X4. C-CERAMIC,DISC;3.3NF,20%,400V,Y5P,TP,18X8,10 C-AL;22UF,20%,50V,GP,BK,6.3X11MM,2. C-CERAMIC,DISC;22NF,+80-20%,50V,Y5V,TP,8.0X4. C-AL;1UF,20%,50V,GP,BK,5X11MM,2MM C-AL;330UF,20%,35V,WT,TP,10X16,5MM C-AL;1000UF,20%,25V,GP,TP,10X20,5MM C-AL;330UF,20%,25V,WT,TP,10X12.5,5M C-AL;1000UF,20%,16V,GP,TP,10X16,7.5 C-AL;470UF,20%,10V,GP,TP,-,C-FILM,PEF;100NF,5%,50V,TP,10X9X4.3X5,5MM CONNECTOR-HEADER;1WALL,2P,1R,3.96MM,STRAIGHT,SN DIODE-RECTIFIER;1N4002,100V,1A,DO-41 DIODE-RECTIFIER;1N4002,100V,1A,DO-41 DIODE-RECTIFIER;1N4002,100V,1A,DO-41 DIODE-SWITCHING;1N4148,100V,200MA,500MW,4NS,DO DIODE-RECTIFIER;1N4002,100V,1A,DO-41 DIODE-RECTIFIER;1SR139,600V,1A,MSR DIODE-RECTIFIER;1SR139,600V,1A,MSR DIODE-RECTIFIER;1SR139,600V,1A,MSR DIODE-RECTIFIER;1SR139,600V,1A,MSR DIODE-RECTIFIER;EG01C,1000V,500MA,DO-41 DIODE-RECTIFIER;1SR153-400,400V,800MA,DO-41 DIODE-RECTIFIER;1SR153-400,400V,800MA,DO-41 DIODE-RECTIFIER;RL10Z,200V,2A,DO,TP DIODE-RECTIFIER;RL10Z,200V,2A,DO,TP DIODE-RECTIFIER;1N4002,100V,1A,DO-41 DIODE-RECTIFIER;1N4002,100V,1A,DO-41 DIODE-RECTIFIER;1N4002,100V,1A,DO-41 DIODE-RECTIFIER;1N4002,100V,1A,DO-41 (S.N.A) SMPS/POWER PARTS BD1S1 3301-000297 BD1S2 AC27-92001M C1P03 2401-001952 C1P04 2401-001975 C1P05 2401-001975 C1P06 2401-001915 C1P08 2401-000303 C1P09 2202-000780 C1P12 2401-001975 C1P13 2202-000780 C1P14 2401-000419 C1S03 2305-001021 C1S04 2305-001021 C1S05 2201-000808 C1S06 2201-000934 C1S08 2401-001682 C1S09 2301-000140 C1S10 2201-000915 C1S15 2201-000379 C1S16 2201-000934 C1S17 2401-001939 C1S18 2201-000379 C1S19 2401-001912 C1S31 2401-001134 C1S32 2401-001998 C1S33 2401-001125 C1S34 2401-000128 C1S35 2401-001479 C1S38 2301-000129 CN1S1 3711-000178 D1P01 0402-000127 D1P02 0402-000127 D1P03 0402-000127 D1P06 0401-000101 D1P20 0402-000127 D1S01 0402-001009 D1S02 0402-001009 D1S03 0402-001009 D1S04 0402-001009 D1S05 0402-000378 D1S07 0402-001013 D1S31 0402-001013 D1S32 0402-001069 D1S33 0402-001069 D40 0402-000127 D41 0402-000127 D46 0402-000127 D47 0402-000127 TSEC TSEC TSEC TSEC TSEC TSEC TSEC TSEC TSEC LOCAL LOCAL LOCAL LOCAL LOCAL LOCAL LOCAL LOCAL LOCAL TSEC TSEC TSEC TSEC TSEC LOCAL LOCAL LOCAL LOCAL LOC | ||
File name 9.PDF 8. Block Diagrams Page 8-1 8-2 8-3 Overall Block Diagram - - - - - - - - - - - - - - - - - - - - 8-2 System Control - - - - - - - - - - - - - - - - - - - - - - - - - 8-3 Video - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 8-4 Samsung Electronics 8-1 Block Diagrams 8-1 Overall Block Diagram ASS'Y MAIN 1 15 2 14 3 13 4 5 6 7 12 8 11 9 10 ASS'Y FULL DECK ASS'Y FUNCTION 8-2 Samsung Electronics Block Diagrams 8-2 System Control/Servo Samsung Electronics 8-3 Block Diagrams 8-3 Audio/Video 8-4 Samsung Electronics |
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