Alternatively, wear a discharging Wrist-strap device. (Be sure to remove it prior to applying power--this is an electric shock precaution.) Samsung Electronics...
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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...
Connects the deck ass’y to the main PCB connecting cable. Use for ASS’Y SMPS (CN01) ↔ ASS’Y MAIN (CN101) connecting cable. E/Cable 1 68140-300-105 E/Cable 2 68140-500-104 Use for ASS’Y TIMER (CN703, CN704)↔ASS’Y JOINT (CN8J01, CN8J02) X-5 Chassis Jig E/Cable 1 E/Cable 2 Samsung Electronics...
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6. Apply power to the function PCB. touching the start and end sensor LEDs. If the tape still does not load, turn power off in order to reset. 7. Insert a test tape into the housing ass’y. Samsung Electronics...
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CONNECTS TO THE ASS'Y MAIN CN602. 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 CN608 CN603 CN602 1 SCREW (1-3X10) 2 SCREWS (2-3X10) Samsung Electronics...
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Reference Information How to Connect E/Cable 1 E/CABLE 1 ASS’Y SMPS ASS’Y MAIN CN101 How to Connect E/Cable 2 ASS’Y TIMER ASS’Y JOINT E/CABLE 2 CN8J01 CN8J02 CN703 CN704 Samsung Electronics...
” LIFT UP THE CABINET-TOP IN THE DIRECTION OF ARROW "C". Ø RELEASE 2 HOOKS. "C" "B" Œ REMOVE 1 SCREW. (BH;5-4X16-BLOCK) ˆ REMOVE 2 SCREWS. (BH;5-4X16-BLOCK) ∏ REMOVE THE PANEL-SIDE(R) IN THE DIRECTION OF ARROW "B". Fig. 4-1 Cabinet Top removal Samsung Electronics...
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Œ REMOVE 3 SCREWS. (BH;3-3X12-YELLOW) ˆ LIFT UP THE COVER-BOTTOM IN THE DIRECTION OF ARROW "B". "A" "B" "A" ¨ RELEASE 2 TABS. ´ REMOVE THE DECORATION-LEG IN THE DIRECTION OF ARROW "A". Fig. 4-2 Bottom Cover removal Samsung Electronics...
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Disassembly and Reassembly 4-1-3 Ass’y Front Panel removal Œ RELEASE 4 HOOKS. (Top view) ´ RELEASE 3 HOOKS. (Bottom view) Fig. 4-3 Ass’y Front Panel removal Samsung Electronics...
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Note : Take extreme care not to damage the PCB when removing it. Œ DISCONNECT CN4303 FROM THE ASS'Y I/O. "A" ´ RELEASE 6 HOOKS. ˇ REMOVE THE ASS'Y FUNCTION IN THE DIRECTION OF ARROW "A". Fig. 4-4 Ass’y Function-Timer removal Samsung Electronics...
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´ REMOVE 2 SCREWS. ˇ REMOVE 2 SCREWS. ¨ LIFT UP THE ASS'Y FULL DECK IN THE DIRECTION OF ARROW "B". "B" "A" Œ REMOVE THE CONNECTOR-WAFER IN THE DIRECTION OF ARROW "A". Fig. 4-5 Ass’y Full Deck removal Samsung Electronics...
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Fig. 4-6 Ass’y SMPS removal 4-1-7 Ass’y Digital removal Œ REMOVE HOLDER PCB. ´ DISCONNECT CNA2 FROM ASS'Y I/O. ˇ DISCONNECT CNA1 FROM ASS'Y IF. ¨ LIFT UP THE ASS'Y DIGITAL IN THE DIRECTION OF ARROW. Fig. 4-7 Ass’y Digital removal Samsung Electronics...
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Disassembly and Reassembly 4-1-8 Ass’y IF removal Œ REMOVE 2 SCREWS. ˇ LIFT UP THE ASS'Y IF IN THE DIRECTION OF ARROW. ´ RELEASE 4 TABS. Fig. 4-8 Ass’y IF removal Samsung Electronics...
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Disassembly and Reassembly 4-1-9 Ass’y Main removal Œ REMOVE 1 SCREW. ˇ LIFT UP THE ASS'Y MAIN IN THE DIRECTION OF ARROW. ´ RELEASE 3 TABS. Fig. 4-9 Ass’y Main removal Samsung Electronics...
"SPEED" BUTTON (H'D S/W ADJ.) STROBE AUDIO INPUT "5" BUTTON (TRACKING CENTER ADJ.) MENU CLR/RST P/STILL STOP DISPLAY MONITOR A.DUB INPUT OUTPUT SYSTEM SYSTEM A.TRK SLOW "FINE" BUTTON (TRK MAX./MIN.) Fig. 6-1 Remote control ass’y of SV-4000W unit Samsung Electronics...
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Note : Refer to the Mechanical Manual “DX7-R/DX7-RC/DX8-R/DX8-RC (AC68-20316A)” for the adjustment and confirmation of ass’y full deck. 6-2-1 The number and position of test point Test point : TP02 (CTL Pulse) TP01 (H’D S/W -Trigger) TP03 (V. Envelope) Fig. 6-2 The position of test point (Main PCB-Component side) Samsung Electronics...
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3. Set tracking preset to 11msec (2head : 2.7msec, 6-2-2 (b) IF THE REMOTE CONTROL ASS’Y 4, 6head : 11msec) using the “FINE(Tracking, (SV-4000W UNIT) IS AVAILABLE TRK)” button of the other remote control ass’y except the remote control ass’y jig for X-5/ 1.
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* Composition for RF AGC adjustment 5) Adjust TL402 for DC2.6 ± 0.1V. PAL Pattern PAL Color bar signal out generator Pattern generator TV CH Generator Attenuator CH 2 (48.25MHz) 70dBu BNC Cable ANT IN DC Voltmeter W424 GROUND IF PCB (Component side) Samsung Electronics...
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4) Set the VCR to RPS (Reverse picture search) or FPS (Forward picture search) mode. 5) Adjust VR4301 (I/O PCB) so that the 100% white and pedestal is as flat as possible. CORRESPOND TO LEVEL (After Adjustment) (Before Adjustment) ADJUST (COMPONENT SIDE) VIDEO TERMINAL Main PCB (Conductor Side) Samsung Electronics...
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1) Apply PAL color bar signal to the video jack on the rear panel. 2) Select output mode selection key to “THROUGH”. 3) Connect channel-1 oscilloscope probe to TPA11. 4) Adjust VRA5 for 1.8Vp-p ± 0.1Vp-p. 1.8Vp-p ± 0.1Vp-p Samsung Electronics...
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1) Apply NTSC color bar signal to the video jack on the rear panel. 2) Select output mode selection key to “PAL”. 3) Connect channel-1 oscilloscope probe to TPA12. 4) Adjust VRA2 for 5.4µsec ± 0.1µsec. 5.4µsec ± 0.1µsec Samsung Electronics...
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Adjust Point Specification 1 PAL Color bar VCD1 4.433619MHz ± 25Hz 2 PAL Color bar NTSC VCD2 3.579545MHz ± 25Hz 3 PAL Color bar PAL-N VCD3 3.582056MHz ± 25Hz 4 PAL Color bar PLA-M VCD4 3.575611MHz ± 25Hz Samsung Electronics...
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Alignment and Adjustment ♦ Test point and adjustment point 7. Color Balance 4. WR-SYNC 5. SYNC Suppress (Conductor Side) (Conductor Side) 8. SECAM Freq. 9. X'TAL 1. W-Y 6. Burst phase 3. W-(B-Y) 2. W-(B-Y) Digital PCB (Component side) Samsung Electronics...
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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 6-10 Samsung Electronics...
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Recheck and replace of bridge diode BD01, FUSE, R01 BD(+) Check switching waveform of IC01-1 Check voltage of Check a shortage/open of each CN1-3,4,5,6, pin and pattern 7,8,9 Replace D31,D32,D33,D34, Check output line of D31,D32, D33,D34,D35,D36 D35,D36 Replace transformer Samsung Electronics...
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Troubleshooting Check D11, Replace D11,D12,D13,D14,D15, D12,D13,D14, D15,R01 Check IC01 Replace IC01 Check the Replace IC02 feecback line of IC02 Check voltage of AL5.8V Check Replace D34,IC03 D34,IC03 Replace transformer Samsung Electronics...
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See page 5-5 Mechanism (Mechanism does not operation operate in play mode) Does not operate or operates but stops soon See page 5-17 PB-Video (Video missing in play mode) See page 5-23(Mono), 5-27(Hi-Fi) (Audio missing in play mode) Samsung Electronics...
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Line operation Yes or VCR Stops Soon Change IC601 Change IC602 (S.End Sensor) Check tape IC601-13 High Cylinder See page 5-15 rotation (Drum does not rotate) OK but VCR stops soon Check CYL FG.PG (SW 25Hz) IC601-38,39 IC601-24 Samsung Electronics...
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Troubleshooting See page 5-14 Capstan rotation (Capstan does not rotate) Q601,Q602 S,T Reel Supply/Take up reel sensor IC601-84,85 (PT601,PT602) Pluse Deck Stop Mode Prog,SW state Loading motor IC601-77,78 Mechanism Change IC601 Samsung Electronics...
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REC SW Logic Change tape Tape eject SW601 Cahnge SW601 D REC (H) Check IC601 IC301-19 IC601-1 See page 5-18 Rec-Video (Video missing in record mode) See page 5-24(Mono), 5-29(Hi-Fi) (Audio missing in record mode) Samsung Electronics...
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Check indication pin 10,18 in display IC701 Check IC701 Mechanism See page 5-5 (Stop) state (Mechanism does not IC601-77,78 operate in play mode) (F.Fwd) (Stop) See page 5-14 Capstan motor (Capstar does not rotate) rotation (Rotate) Check mechanism Samsung Electronics...
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Press rewind button Check indication pin 10,18 in display IC701 Check IC701 See page 5-5 Mechanism (Stop) (Mechanism does not state operate in play mode) IC601-77,78 (Rew) Check (Stop) Capstan motor IC601-20 rotation (CM F/R) (Rotate) Check mechanism Samsung Electronics...
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Play See page 5-4 operation Play mode in operative Press Fwd search button Play speed Check Check Capstan speed mechanism IC601 Serach speed Check Adjust Noise bar (Control pulse) A/C head locking IC601-37 Check Capstan motor IC601 5-10 Samsung Electronics...
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Play See page 5-4 operation Play mode in operative Press Rev search button Play speed Check Check Capstan speed IC601 mechanism Serach speed Adjust Noise bar (Control pulse) A/C head locking IC601-37 Check Capstan motor IC601 Samsung Electronics 5-11...
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Turn the VCR power on and insert a tape Check Tape Check start/end (Control pulse) loading sensor IC601 IC601-37 Press eject button Check IC602-7:12V LM B+ line Change IC602-10:High IC602 IC602-2:Low Check CST loading IC601-75:High mechanism IC601-74:Low Check IC601 5-12 Samsung Electronics...
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Troubleshooting No servo lock Play C-FG CN603-1 IC601-40 Check CTL pluse A/C head IC601-37 Check CTL pulse AC level (SP,LP:Over 2Vp-p) Change IC601 Samsung Electronics 5-13...
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CN603-4 power supply Check 6V (AL 5V) at AL6V line of CN603-8 power supply Place the VCR in play mode Check CTL ref. CN603-3:2.5V R610,R612 Check C.M CTL/ (0.4V More) Check IC601 C615,R633 CN603-6 Check capstan motor 5-14 Samsung Electronics...
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Troubleshooting Drum does not rotate Check 12V Check 12V at AL13V of CN604-5 power supply Place the VCR in play mode Check D-FG Faster IC601-38 CYL-speed square wave Slower Change (10MHz) XT601,C623,C624 XT601 Check cylinder(drum) motor Samsung Electronics 5-15...
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(Video out) replace C4362, IC301-28 IC301-34 IC301 R4362 Video Check IC4304-7 IC4304 See page 5-33 Video Video (Digital block not IC4305-1 IC4305-7 operate) Change Video IC4305 IC901-16 Check IC901 Video Check Change IC4302 3~6 Video Out Line IC4302 5-16 Samsung Electronics...
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Place VCR play mode Check Check Video FM in IC601-24(H'D SW) IC302-15,7,8,5 IC301-15 IC301-19(PB:Low) Video Check Check IC301-26 Q309-E video head Video Video Video Check IC301-38 IC4304-7 IC4306-5,6 video out line Change Check Check IC301 IC4304 IC4306 Samsung Electronics 5-17...
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See page 5-16 Video EE mode (Video missing in EE mode) operation Place VCR record mode FM-Video Change IC301-18 IC301 FM-Video Check IC302-11 Q302 FM-Video Rec-5V Check rec high IC302-18(LP) IC302-7 IC301-19 17(SP) Check Change video head IC302 5-18 Samsung Electronics...
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/MESECAM/NT4.43) XT302 - Always XT303 - 3.57MHz (PAL-M) See page 5-17 FM-ENV (Video missing in play mode) IC301-15 Color S/W 25Hz Check IC301-48,50 IC301-66 IC601 Check XT301, Change XT302, XT301 XT303 Color Check IC301-52 IC303,Q312 Change IC301 Samsung Electronics 5-19...
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/MESECAM/NT4.43) XT302 - Always XT303 - 3.57MHz (PAL-M) (Video In) See page 5-18 Record mode (Video missing in record mode) Check Color XT301, Change IC301-14 XT302, XT301 XT303 Change IC302 FM signal Check Q303 IC302-11 Change IC302 5-20 Samsung Electronics...
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See page 5-30 RF-Pack 14 Tuning in operative Check Check Hi-Fi IC See page 5-26 IC501-35 Hi-Fi part Check Audio in R3A22,R3A25 IC301-73 C3A22 Check Check voltage Audio out power part IC301-77 IC301-76 PC5V line PC5V Change IC501 Samsung Electronics 5-21...
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Troubleshooting Check Check Hi-Fi IC R513,R514 IC501-31 C523 Check Hi-Fi part See page 5-26 (Audio missing in EE mode) 5-22 Samsung Electronics...
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A/CE Head Check Check Audio Rec/Play Audio In C3A31, C3A12, C3A13, IC301-10 R3A12, R3A13, R3A15, R3A16, R3A17 Check Check Audio In C3A15 IC301-11 Check Check Audio out IC301 IC301-77 See page 5-21 Audio missing in EE mode Samsung Electronics 5-23...
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PC 5V Line FL3A01 PC 5V Check Check Check IC301-6 IC301-5 C3A01, C3A10 more than 0.7~3V Change Check Q3A05 Check Q3A01, Q3A02, Q3A03, Q3A04, FL3A01-6 C3A02, C3A03, C3A04, C3A05, about 50Vp-p R3A03, R3A04, R3A05, R3A06, R3A07, R3A08, R3A09 5-24 Samsung Electronics...
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41 (R) in jack Check Check IC501-5(L), R503, R504, C502 1(R) Audio out After check IC501-35 Check CTL IC607-4 (Conv. out) IC501-10:Low See syscon part 11 (L), 13 (R) Change IC501 Check I/O block 5-26 Samsung Electronics...
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Troubleshooting (HI-FI) Audio missing in play mode Place VCR in play mode (Select Hi-Fi mode) Check IC501-25 PB FM After check Check IC607-4 IC501-10:Low See syscon part Same Check EE Mode Samsung Electronics 5-27...
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Troubleshooting Check Check Check IC502-3 IC502-2 IC601-23 PB FM Out A.H'D SW See syscon part Check C544, R532, R530 Check Check IC502-14 the PC 5V line PC 5V Check C518, C535 And Replace IC502 5-28 Samsung Electronics...
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IC501-22 OSC part Rec FM Check Check Hi-Fi preamp IC IC502-9 C542, R529, R531 Rec FM in Check Check Check IC502-15 IC502-14 PC 5V Line Rec FM Out PC 5V Change Change CN301-8 and IC502 cylinder ass'y Samsung Electronics 5-29...
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IC601-PIN94(VT PWM) (0 - 32V) Check Check power block Tuner B (9V) Check IC404 1-9, Check band IC601-57.56(Band 1,2) select Check IC4O1-12, 15 Check AFT,AGC IC601-PIN 6 (AFT) See page 5-31 RF video missing in EE mode 5-30 Samsung Electronics...
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Check RF converter tuner IF See page 5-30 Tunning in operative Q401-C Check Q401 Check IF signal IC401-13,7 Check FL401,TL401 Check EE video IC401 Q406-C Check EE Check Q406 video See page 5-16 Video missing in EE mode Samsung Electronics 5-31...
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RF audio missing in EE mode Check Check RF converter tuner IF See page 5-30 Tunning in operative Q402-C Check IC401 Check IF signal Check IC402-13,11,9 IC402 Check audio signal See page-5-26 Audio missing in Hi-Fi mode 5-32 Samsung Electronics...
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Digital block not operate Through mode operate ICA5-28 Check I/O block Input signal ICA5-22 Check ICA5 Output signal Application circuit ICA12-5 Check ICA12 input Input signal Application circuit ICA12-7 Check ICA7 input Input signal Application circuit Check I/O block Samsung Electronics 5-33...
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Input signal ICA6-3, ICA7-3, Check input ICA8-3 Application circuit Input signal ICA9-1,3,5 Check ICA9 input Input signal Application circuit ICA12-1 Check ICA12 input Input signal Application circuit ICA12-7 Check ICA12 Output signal Application circuit Check I/O block 5-34 Samsung Electronics...
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) 12-2 Samsung Electronics...
Schematic Diagrams 12-5 Audio/Video PB Y PROCESS AUDIO REC Y PROCESS PB C PROCESS AUDIO REC C PROCESS REC Y PROCESS REC C PROCESS 12-8 Samsung Electronics...