Panasonic NV-SV120EF Service Manual
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Panasonic NV-SV120EF Service Manual

Panasonic NV-SV120EF Service Manual

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ORDER NO. MABR0304008C2
Video Cassette Recorder
NV-SV120EF
Z-MECHANISM
SPECIFICATIONS
1. INTRODUCTION
1.1. INTRODUCTION
This service manual contains technical information which will allow service personnel to
1

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Summary of Contents for Panasonic NV-SV120EF

  • Page 1 ORDER NO. MABR0304008C2 Video Cassette Recorder NV-SV120EF Z-MECHANISM SPECIFICATIONS 1. INTRODUCTION 1.1. INTRODUCTION This service manual contains technical information which will allow service personnel to...
  • Page 2 understand and service this model. If the circuit is changed or modified, this information will be followed by supplementary service manual to be filed with original service manual. Note: Adjustment procedures, Disassembly Procedures and Assembly Procedures for Mechanism Chassis are separate volume from this service manual. / Please refer to the service manual for Z- Mechanism Chassis.
  • Page 3 PROCEDURE F.I.P. DISPLAY Turn on the Service Mode 1.Press the FF key and the EJECT key simultaneously for more than 3 seconds. Activate the Service Mode 2 2.While keep placing FF key, press the EJECT key in twice. Activate the Entering Mode. 3.Press the EJECT key for more than 3 seconds.
  • Page 4 Model No. NV-SV120EF Fig. S2 Model Code & Option Code NOTE: Since all electrical adjustments data is still not available, perform the Electrical Adjustment continuously. 2.1.2. CYLINDER UNIT REPLACEMENT 1. CYLINDER UNIT REPLACEMENT A. Remove the mechanism unit from MAIN C.B.A./Chassis by referring “SECTION 2.
  • Page 5 E. Loose Hex screw (C) (1.5 mm) and remove the CYLINDER RETAINER. F. Remove the Upper Cylinder. Fig. S4 3. UPPER CYLINDER ASSEMBLY When reassembling, perform the steps in the reverse order. Notes: 1. Install the Cylinder Retainer so that the 2 holes on top of the Cylinder Retainer are at right angles with the P5001 Connection.
  • Page 6 2. Tighten the Hex screw (C) (1.5 mm) while pressing down on top of the Cylinder Retainer. Fig. S5 3. Install the Cylinder Rotor Unit so that the inner hole of the Cylinder Rotor Unit fits to the small projection (D) on top of the Upper Cylinder.
  • Page 7 7. Confirm the PG SHIFTER ADJUSTMENT with the alignment tape (PAL: VFJ8125H3F) and adjust it if necessary. 2.1.3. CHECKING OF MAIN C.B.A. When servicing the MAIN C.B.A., take out the MAIN C.B.A. and mechanism from the frame and turn over. Fig.
  • Page 8 C. Rotate the Capstan Motor clockwise from the bottom side to take up the tape. Fig. S11 D. Rotate the Main Cam Gear clockwise until the cassette tape is ejected. 2.3. INTRODUCTION OF VIDEO HEAD CLEANING CASSETTE / (POLISHING TYPE) 1. We are pleased to introduce Panasonic Video Head Cleaning...
  • Page 9 Cassette, VFK0923FT [for service purposes] and VFK0923FSE [ for end users] for all VHS/SVHS VCP and VCR. 2. These cleaning cassettes are exclusive removing the hard and sticky clogging on video heads. 3. These improve the efficiency of video head cleaning service and shortening cleaning time for end users.
  • Page 10 VFK0823FSE (For end users) Type of Cassette Full VHS Cassette Cleaning Time 10 Seconds/Time Tape Length 3.34 m Usability in a Path 30 Times Note: The tape material itself is the same in both types. 2.4. SELF-DIAGNOSIS RESULT DISPLAY The "SELF-DIAGNOSIS RESULT DISPLAY & MEMORY function is built in this VTR. It means that when the VCR detects undesirable condition, it can be displayed a “Error code (Two numbers from the right)”...
  • Page 11 INDICATION CAUSE REMEDY/CHECK After cylinder lock is detected, the cylinder Check the cylinder motor drive circuit. does not start rotating again even after tape unloading. Cassette tape is not wound up during the tape Check the capstan motor drive circuit. unloading except EJECT mode.
  • Page 12 3.1.2. DETAIL OF DISASSEMBLY METHOD 1. REMOVAL OF THE TOP PANEL Remove 4 Screws (A) Fig.D2 2. REMOVAL OF THE FRONT PANEL UNIT Unlock 7 Tabs (B) Fig. D3...
  • Page 13 3. REMOVAL OF THE MECHANISM UNIT Remove Screw (C) Remove 3 Screws (D) Remove 2 Screws (E) Note: 1. Keep pressing 2 stoppers on Cassette Holder Plate and Press Cassette Holder Plate to the rear. 2. Remove the Mechanism Unit after bend the Cylinder Shield in the direction of the arrow.
  • Page 14 Remove 4 Screws (F) Unlock 4 Tabs (G) Fig. D5 NOTE: Before mounting the MAIN C.B.A. onto the frame, be sure to confirm that the insulation sheet is mounted on the frame as shown in Fig. D6 Fig. D6 5. REMOVAL OF THE SECAM C.B.A. Unlock 2 Tabs (H) Fig.
  • Page 15 6. SERVICING POSITION Fig. D8 3.2. MECHANICAL ADJUSTMENT PROCEDURES Refer to the Service Manual for Z-Mechanism Chassis. / (Order No. VRD9802005C2) 3.3. ELECTRICAL ADJUSTMENT PROCEDURES 3.3.1. TEST EQUIPMENT The following equipments are required for Electrical Adjustments. 1. Dual-Trace Oscilloscope - Voltage Range: 0.005-5V/div - Frequency Range: DC-35MHz - Probes: 10:1 / 1:1 2.
  • Page 16 5. Video Sweep Generator 6. Sinewave Generator 7. Video Pattern Generator 8. Monitor TV 9. DC Power Supply 10. VHS/S-VHS Blank Tape 11. VHS Alignment Tape - Parts No.: VFJ8125H3F(PAL) 3.3.2. VCR SETTING When no indication in the procedure, set each selector as follows. 1.
  • Page 17 Fig.E1 Fig.E2 Fig.E3 CONDITION: BURST SIGNAL OFF / CONDITION: BURST SIGNAL 75ohm TERMINATED 75ohm TERMINATED Fig.E4 3.3.4. PG SHIFTER ADJUSTMENT / (AUTOMATIC) PROCEDURES FIP DISPLAY Press the FF and EJECT Keys simultaneously for 3 seconds. Press the FF and EJECT Keys simultaneously twice.
  • Page 18 PROCEDURES FIP DISPLAY When the sequence of the automatical adjustment has been terminated, the following action has been made. *SUCCEED: The cassette tape is ejected. *ERROR : The "F2"is displayed on the FIP. (Check the Servo/Syscon circuit and Cylinder unit.) Release the Service mode by pressing the EJECT and FF keys simultaneously in 6 times until the FIP becomes normal indication.
  • Page 19 PROCEDURES FIP DISPLAY Store the Adjusted value by pressing the "5" key on the Remote Controller. Release the Service mode by pressing the EJECT and FF keys simultaneously in 6 times until the FIP becomes normal indication. Fig. E6 3.3.6. VHS VIDEO FREQUENCY RESPONSE ADJUSTMENT PROCEDURES FIP DISPLAY Set the S-VHS ET REC to OFF in...
  • Page 20 Fig. E7 3.3.7. LOCATION OF TEST POINTS & CONTROLS 3.3.8. CIRCUIT BOARD LAYOUT 4. ABBREVIATIONS 5. INPUT/OUTPUT CHART 5.1. INPUT/OUTPUT CHART FOR IC6001 5.2. TRUTH TABLE...
  • Page 21 6. WAVEFORM TABLE & VOLTAGE CHART 6.1. WAVEFORM TABLE 6.2. VOLTAGE CHART 7. BLOCK DIAGRAMS 7.1. SYSTEM CONTROL & SERVO BLOCK DIAGRAM 7.2. LUMINANCE & CHROMINANCE BLOCK DIAGRAM 7.3. S-VHS BLOCK DIAGRAM 7.4. SECAM BLOCK DIAGRAM 7.5. AUDIO BLOCK DIAGRAM 8.
  • Page 22 8.13. CYLINDER STATOR UNIT SCHEMATIC DIAGRAM 8.14. CAPSTAN UNIT SCHEMATIC DIAGRAM 9. CIRCUIT BOARD ASSEMBLIES 9.1. TV DEMODULATOR PACK C.B.A. 9.2. CYLINDER STATOR UNIT 9.3. FRONT C.B.A. 9.4. MAIN C.B.A. 9.5. S-VHS PACK C.B.A. 9.6. SECAM C.B.A. 10. EXPLODED VIEWS 10.1.
  • Page 23 10.2. CASING PARTS SECTION...
  • Page 24 10.3. PACKING PARTS SECTION...
  • Page 25 11. REPLACEMENT PARTS LIST 11.1. CHASSIS PARTS SECTION PARTS LIST - All parts except parts mentioned [AVC-SPC] in the Remarks column are supplied from MAVD. Parts mentioned [AVC-SPC] are supplied from PAVC-CSG (AVC- SPC).
  • Page 26 Ref. No. Part No. Part Name & Description Remarks VEG1601 CYLINDER UNIT VXP2174 UPPER CYLINDER UNIT VDB1256 CYLINDER RETAINER VEM0715 CYLINDER MOTOR UNIT VXS0135 EARTH BRUSH UNIT VMD3795 FLAT CABLE HOLDER VEK9069 CAPSTAN UNIT L1AZ00000004 FE HEAD VDB1431 TENSION ARM BOSS VDB1460 SUPPLY BRAKE ARM BOSS VDG1220KIT...
  • Page 27 Ref. No. Part No. Part Name & Description Remarks VMD3379 SIDE PLATE (L) VXA6540 SIDE PLATE (R) UNIT VXA5746 CASSETTE HOLDER UNIT VXP1730 MAIN SHAFT UNIT VHD1117 SCREW VHD1117 SCREW VHD0842 SCREW VHD0843 SCREW VHD0843 SCREW VHD0844 SCREW VHD0844 SCREW VHD1066 SCREW VHD1066...
  • Page 28 Ref. No. Part No. Part Name & Description Remarks VGM1990 TOP PANEL silver VYP8699 FRONT PANEL U SV120 RKA0072-K FOOT RKA0072-K FOOT VYF2892 DOOR UNIT VGB0554 SUPER DRIVE BADGE VKF3706 BLINDER PANEL VMB2521 BLINDER SPRING VKU0575 BOTTOM PLATE VMZ3099-W V0 SHEET VMZ3099 VJH1175 JACK BOARD...
  • Page 29 Ref. No. Part No. Part Name & Description Remarks RQTD0044-F OPERATING INSTRUCTIONS (FRENCH) N2QAKB000043 REMOTE HV60,MV20 R0186-720010 BATTERY COVER K1TWACB00005 RF CABLE F-MODELLE RJA0043-1C POWERCORD(MINI/E+EG) VJA1057 21 PIN CABLE VPK2246 ACCESSORIES PACKING VPN5555 CUSHION (L) VPN5554 CUSHION (R) VPG0S68 PACK.CASE SERVICE FIXTURES &...
  • Page 30 Ref. No. Part No. Part Name & Description Remarks VEP06F09D MAIN C.B.A. (RTL) THE FOLLOWING C.B.A. IS INCLUDED IN MAIN C.B.A. VEP07A47A-SK VEP07A47A-SK TV DEMODULATOR PACK C.B.A. (RTL) INCLUDED IN MAIN C.B.A.(VEP06F09D). VEP03G25A S-VHS PACK C.B.A. (RTL) VEP04832A FRONT C.B.A. (RTL) VEP08328A SECAM C.B.A.
  • Page 31 Ref. No. Part No. Part Name & Description Remarks C0738 ECJ1VC1H390J CHIP CAPACITOR C0739 F1H1H470A230 CHIP CAPACITOR C0740 ERJ3GEY0R00V CHIP RESISTOR ERJ3GS0R00V C0741 F1H1H103A220 CHIP CAPACITOR C0742 F1H1H330A230 CHIP CAPACITOR C0743 F1H1H180A230 CHIP CAPACITOR C1002 EEUEB1E470SB ALU ELEC CAPACITOR C1003 F1H1C104A071 CHIP CAPACITOR C1004...
  • Page 32 Ref. No. Part No. Part Name & Description Remarks C2518 ECUV1H473ZFV CHIP CAPACITOR ECJ1VF1H473Z C2519 ECEA1EKA470B ALU ELEC CAPACITOR C2520 ECJ1VB1C683K CHIP CAPACITOR C2521 ECJ1VB1A154K CHIP CAPACITOR C2522 ECJ1VB1A154K CHIP CAPACITOR C2523 ECJ1VB1A154K CHIP CAPACITOR C2524 ECEA1VKN4R7B ALU ELEC CAPACITOR C3001 ECJ1VC1H151J CHIP CAPACITOR...
  • Page 33 Ref. No. Part No. Part Name & Description Remarks C3065 F1H1H103A220 CHIP CAPACITOR C3066 F1H1H103A220 CHIP CAPACITOR C3067 ECEA0JKA470B ALU ELEC CAPACITOR C3068 F1H1C104A008 CHIP CAPACITOR C3069 F1H1H270A230 CHIP CAPACITOR C3070 F1H1C104A071 CHIP CAPACITOR C3071 ECJ2VF1H104Z CHIP CAPACITOR ECUV1H104ZFN C4001 ECEA0JKA101B ALU ELEC CAPACITOR C4003...
  • Page 34 Ref. No. Part No. Part Name & Description Remarks C4532 ECEA1CKA100B ALU ELEC CAPACITOR C4533 ECEA1CKA100B ALU ELEC CAPACITOR C4534 ECEA1CKA470B ALU ELEC CAPACITOR C4538 F1H1C104A071 CHIP CAPACITOR C4539 F1H1C104A008 CHIP CAPACITOR C4540 F1H1C104A071 CHIP CAPACITOR C4541 F1H1C104A071 CHIP CAPACITOR C4544 F1H1H101A736 CHIP CAPACITOR...
  • Page 35 Ref. No. Part No. Part Name & Description Remarks C5002 F1H1H103A748 CHIP CAPACITOR C5003 F1H1H103A748 CHIP CAPACITOR C5004 F1H1H103A748 CHIP CAPACITOR C5005 F1H1C104A071 CHIP CAPACITOR C5006 ECEA0JKA470B ALU ELEC CAPACITOR C5007 F1H1C104A008 CHIP CAPACITOR C6001 ECEA0JKA470B ALU ELEC CAPACITOR C6003 ECJ1VC1H471J CHIP CAPACITOR ECUV1H471JCV...
  • Page 36 Ref. No. Part No. Part Name & Description Remarks C7622 F1H1C104A071 CHIP CAPACITOR C7624 F1H1C104A071 CHIP CAPACITOR C7625 F1H1H103A220 CHIP CAPACITOR C7628 F1H1C104A071 CHIP CAPACITOR C7630 ERJ3GEYJ822V CHIP RESISTOR ERJ3GSJ822V C7631 ERJ3GEY0R00V CHIP RESISTOR ERJ3GS0R00V C7634 F1H1H101A736 CHIP CAPACITOR C7635 ECEA0JKA470B ALU ELEC CAPACITOR C7638...
  • Page 37 D7601 MAZ43000MF DIODE MA4300-MTA...
  • Page 38 Ref. No. Part No. Part Name & Description Remarks DP7501 A2BA00000212 DISPLAY (VCR) F1101 K5D162BL0007 MINIATURE FUSE VSF0244C16 F1101 K5D162BL0007 MINIATURE FUSE K5Y162B00002 IC0701 C1AB00001598 INTEGRATED CIRCUIT IC1200 C0DAEJC00003 INTEGRATED CIRCUIT UPC1093J-T IC1501 B3EZ00000001 INTEGRATED CIRCUIT RPI354N IC1502 B3EZ00000001 INTEGRATED CIRCUIT RPI354N IC2501 AN3811NK-P...
  • Page 39 L1260 G0A220G00018 FIXED INDUCTOR...
  • Page 40 Ref. No. Part No. Part Name & Description Remarks L2501 G0C680JA0019 CHOKE COIL AXIAL VLQ0599J680T L3002 G0C820JA0019 CHOKE COIL AXIAL L3003 G0C270JA0019 CHOKE COIL AXIAL VLQ0599J270T L3004 G0C680JA0019 CHOKE COIL AXIAL VLQ0599J680T L3005 G0C270JA0019 CHOKE COIL AXIAL VLQ0599J270T L3006 G1C120J00001 FIXED INDUCTOR L3010 G0C390JA0019...
  • Page 41 Ref. No. Part No. Part Name & Description Remarks LB7604 J0JCC0000124 BEAD CORE LR1150 J1ZZA0000001 BEAD CORE P1101 K2AA2K000012 AC INLET P1501 K1KB02A00035 CONNECTOR VJS3837A002 P2501 K1KA12A00127 CONNECTOR VJP3835E012 P2502 K1MN09A00023 CONNECTOR P3003 K1MN15A00033 CONNECTOR VJS3537A015G P4001 K1KB02A00035 CONNECTOR VJS3837A002 P4002 K1MN06A00035 CONNECTOR...
  • Page 42 Ref. No. Part No. Part Name & Description Remarks Q6004 2SB0709ARL TRANSISTOR 2SB709A-RTX Q6008 2SD0601ARN TRANSISTOR 2SD601A-RTX Q6009 2SD0601ARN TRANSISTOR 2SD601A-RTX Q6010 2SB0709ARL TRANSISTOR 2SB709A-RTX QR0702 B1GBHBHH0002 DIGITAL TRANSISTOR QR1003 UNR211200L TRANSISTOR QR1004 B1GDCFJJ0002 TRANSISTOR DTA114EK-T146 QR1005 UNR221100L TRANSISTOR UN2211-TX QR3003 UNR221300L TRANSISTOR...
  • Page 43 Ref. No. Part No. Part Name & Description Remarks R1014 ERJ6GEYJ472V CHIP RESISTOR R1015 ERDS2TJ103T CARBON RESISTOR R1016 ERJ6GEYJ103V CHIP RESISTOR R1017 ERJ6GEYJ103V CHIP RESISTOR R1022 ERDS2TJ151T CARBON RESISTOR R1024 ERJ6GEYJ562V CHIP RESISTOR R1025 ERDS2TJ151T CARBON RESISTOR R1026 ERJ6GEYJ682V CHIP RESISTOR R1027 ERDS2TJ332T CARBON RESISTOR...
  • Page 44 Ref. No. Part No. Part Name & Description Remarks R3004 ERJ6GEYJ562V CHIP RESISTOR R3005 ERJ6GEY0R00Z CHIP RESISTOR ERJ6GEY0R00V R3006 ERJ6GEYJ101Z CHIP RESISTOR ERJ6GEYJ101V R3008 ERJ6GEY0R00Z CHIP RESISTOR ERJ6GEY0R00V R3009 ERJ6GEYJ153V CHIP RESISTOR R3010 ERJ6GEYJ103V CHIP RESISTOR R3011 ERJ6GEYJ101Z CHIP RESISTOR ERJ6GEYJ101V R3012 ERJ6GEYJ101Z...
  • Page 45 Ref. No. Part No. Part Name & Description Remarks R4506 ERJ6GEYJ472V CHIP RESISTOR R4507 ERJ6GEYJ153V CHIP RESISTOR R4508 ERJ6GEYJ472V CHIP RESISTOR R4509 ERJ6GEYJ472V CHIP RESISTOR R4510 ERJ6GEYJ153V CHIP RESISTOR R4511 ERJ6GEYJ472V CHIP RESISTOR R4512 ERJ6GEYJ472V CHIP RESISTOR R4513 ERJ6GEYJ563V CHIP RESISTOR R4514 ERJ6GEYJ563V CHIP RESISTOR...
  • Page 46 Ref. No. Part No. Part Name & Description Remarks R4934 ERJ6GEYJ750V CHIP RESISTOR R4935 ERJ6GEY0R00Z CHIP RESISTOR ERJ6GEY0R00V R4936 ERJ6GEYJ102V CHIP RESISTOR R4937 ERJ6GEYJ102V CHIP RESISTOR R6001 ERJ6GEYJ472V CHIP RESISTOR R6002 ERJ6GEYJ102V CHIP RESISTOR R6003 ERJ6GEYJ391V CHIP RESISTOR R6004 ERJ6GEY0R00Z CHIP RESISTOR ERJ6GEY0R00V R6005...
  • Page 47 Ref. No. Part No. Part Name & Description Remarks R6083 ERJ6GEYJ222V CHIP RESISTOR R7501 ERJ6GEYJ822V CHIP RESISTOR R7502 ERJ6GEYJ562V CHIP RESISTOR R7503 ERJ6GEYJ432V CHIP RESISTOR R7504 ERJ6GEYJ822V CHIP RESISTOR R7505 ERJ6GEYJ562V CHIP RESISTOR R7506 ERJ6GEYJ432V CHIP RESISTOR R7507 ERDS2TJ390T CARBON RESISTOR R7509 ERJ6GEYJ101Z CHIP RESISTOR...
  • Page 48 Ref. No. Part No. Part Name & Description Remarks S7513 EVQ11L07B SWITCH S7514 EVQ11404M SWITCH S7515 EVQ11L07B SWITCH S7517 EVQ11L07B SWITCH T1150 ETS29AZ286AC TRANSFORMER T4001 EQQ7QF024P HIGH FREQUENCY COIL EQQ7QF024Q TU7601 ENV57G04H6 TUNER VR0701 EVNCYAA03B14 VARIABLE RESISTOR ERJ6GEY0R00Z CHIP RESISTOR ERJ6GEY0R00V ERJ6GEY0R00Z CHIP RESISTOR...
  • Page 49 Ref. No. Part No. Part Name & Description Remarks W724 ERJ6GEY0R00Z CHIP RESISTOR ERJ6GEY0R00V W725 ERJ6GEY0R00Z CHIP RESISTOR ERJ6GEY0R00V W726 ERJ6GEY0R00Z CHIP RESISTOR ERJ6GEY0R00V W727 ERJ6GEY0R00Z CHIP RESISTOR ERJ6GEY0R00V W728 ERJ6GEY0R00Z CHIP RESISTOR ERJ6GEY0R00V W729 ERJ6GEY0R00Z CHIP RESISTOR ERJ6GEY0R00V W730 ERJ6GEY0R00Z CHIP RESISTOR ERJ6GEY0R00V...
  • Page 50 C3323 ECEA0JKA470B ALU ELEC CAPACITOR...
  • Page 51 Ref. No. Part No. Part Name & Description Remarks C3324 ECJ1VB0J474K CHIP CAPACITOR C3325 ECJ1VB0J474K CHIP CAPACITOR C3326 F1H1H103A748 CHIP CAPACITOR C3327 F1H1H103A748 CHIP CAPACITOR C3328 F1H1C104A008 CHIP CAPACITOR C3329 F1H1C104A008 CHIP CAPACITOR C3330 ECJ1VB1H822K CHIP CAPACITOR ECUV1H822KBV C3331 F1H1C104A008 CHIP CAPACITOR C3332 ECEA0JKA470B...
  • Page 52 Ref. No. Part No. Part Name & Description Remarks K3320 ERJ3GEY0R00V CHIP RESISTOR ERJ3GS0R00V K3327 ERJ3GEY0R00V CHIP RESISTOR ERJ3GS0R00V K3329 ERJ3GEY0R00V CHIP RESISTOR ERJ3GS0R00V L3301 G0C220JA0019 CHOKE COIL AXIAL VLQ0599J220T L3302 G0C220JA0019 CHOKE COIL AXIAL VLQ0599J220T L3309 G1C101J00006 FIXED INDUCTOR L3312 G1C330J00004 FIXED INDUCTOR...
  • Page 53 Ref. No. Part No. Part Name & Description Remarks R3331 ERJ3GEYG242V CHIP RESISTOR R3332 ERJ3GEYG102V CHIP RESISTOR R3334 ERJ3GEYG561V CHIP RESISTOR R3335 ERJ3GEYG102V CHIP RESISTOR R3339 ERJ3GEYG392V CHIP RESISTOR R3340 ERJ3GEYG102V CHIP RESISTOR R3349 ERJ3GEYG392V CHIP RESISTOR R3364 ERJ3GEYJ561V CHIP RESISTOR ERJ3GSJ561V R3365 ERJ3GEYG102V...
  • Page 54 S4805 EVQ11G09K SWITCH Ref. No. Part No. Part Name & Description Remarks S4806 EVQ11G09K SWITCH MISCELLANEOUS VGQ6104 FRONT PCB HOLDER VEP08328A SECAM C.B.A. (RTL) C8801 F1H1H103A220 CHIP CAPACITOR C8802 ECEA1HKA010B ALU ELEC CAPACITOR C8803 F1H1H103A748 CHIP CAPACITOR C8804 ECEA1HKA2R2B ALU ELEC CAPACITOR C8805 F1H1H222A219 CHIP CAPACITOR...
  • Page 55 12. SCHEMATIC DIAGRAM FOR PRINTING WITH A4 SIZE...
  • Page 56 S-VHS PACK C.B.A. Transistor Integrated Circuit Q3307 IC3301 Q3311 IC3302 Q3312 IC3303 Q3315 IC3304 Q3316 IC3305 Q3317 Connector Q3318 PS3301 Q3319 PS3302 Q3320 Q3321 Q3322 ADDRESS INFORMATION (VEP03G25A) IC3302 IC3301 IC3305 IC3303 PS3302 PS3301 (COMPONENT SIDE) (FOIL SIDE) NV-SV120EF S-VHS PACK C.B.A.
  • Page 57 TV DEMODULATOR PACK C.B.A. Transistor Q0702 Q0703 Transistor & Resistor QR0702 Integrated Circuit IC0701 Adjustment VR0701 Connector PK0701 PP0701 ADDRESS INFORMATION (VEP07A47A) PP0701 IC0701 VR0701 QR0702 Q0702 Q0703 NV-SV120EF TV DEMODULATOR PACK C.B.A.
  • Page 58 Pin No. Signal Name P-OFF P-SAVE P-FAIL Reset Describe A.DEF(H) O Output signal for audio defea and decoder IC reset. Detection of COLOR KILLER active. CKILLER DET(L) AFC S S curve input from tuner. Output signal depens on tape speed. SLP(H) (During N10H or P9H: High) (Except N10H and P9H: Low)
  • Page 59 Pin No. Signal Name P-OFF P-SAVE P-FAIL Reset Describe Input terminal for mechanism position. POS.SW3 D.A.REC(H) POS.SW2 BIAS(L) 140mS 140mS POS.SW1 RESET(L) MICOM reset input terminal. 32KHz IN Sub oscillator input. 32KHz OUT O Sub oscillator output. +5V(D) Power. 12MHz.IN Main oscillator input.
  • Page 60 Pin No. Signal Name P-OFF P-SAVE P-FAIL Reset Describe HALF_WAVE(H) O Control signal for switching capstan motor mode FAST and SLOW. CAP.ET O Torque control signal for capstan motor. CYL.ET O Torque control signal for cylinder motor. 4.213V 4.213V 4.213V P FAIL Interrupt input signal for power fail detection.
  • Page 61 INPUT CONDITION OUTPUT RESULT POWER INPUT SELECT VV ON(H) PB(H) S(H) PB(H) PB(H) AV2 IN(0) AV1 IN(00) L(0) OFF(1) TUN(000) AV2 IN(0) AV1 IN(00) M/H(1) TUN(000) NO.TU L/M/H MUTE MUTE *1[L(0)] OFF(1) TUN(000) LINK C+.TU L/M/H MUTE MUTE *1[L(0)] OFF(1) TUN(000) L/M/H MUTE...
  • Page 62 INPUT CONDITION OUTPUT RESULT POWER INPUT SELECT VV ON(H) PB(H) S(H) PB(H) PB(H) P.ON NO.TU VIDEO VCR OUT(1) VCR OUT(11) L(0) OFF(1) TUN(000) S-VIDEO Y OUT(11) C+.TU VIDEO VCR OUT(1) VCR OUT(11) L(0) OFF(1) TUN(000) S-VIDEO Y OUT(11) VIDEO VCR OUT(1) VCR OUT(11) L(0) OFF(1)
  • Page 63 INPUT CONDITION OUTPUT RESULT POWER INPUT SELECT VV ON(H) PB(H) S(H) PB(H) PB(H) P.ON DECODER NO.TU VIDEO VCR OUT(1) AV1 IN(00) L(0) OFF(1) TUN(000) S-VIDEO Y OUT(11) VIDEO AV2 IN(0) AV1 IN(00) M/H(1) TUN(000) S-VIDEO AV2 IN(0) C+.TU VIDEO VCR OUT(1) TUN IN(10) L(0) OFF(1)
  • Page 64 INPUT CONDITION OUTPUT RESULT POWER INPUT SELECT VV ON(H) PB(H) S(H) PB(H) PB(H) P.ON DECODER NO.TU VIDEO VCR OUT(1) AV1 IN(00) H(1) OFF(1) TUN(000) S-VIDEO Y OUT(11) VIDEO VCR OUT(1) AV1 IN(00) H(1) OFF(1) TUN(000) S-VIDEO Y OUT(11) C+.TU VIDEO VCR OUT(1) TUN IN(10) H(1)
  • Page 65 Mute signals INPUT CONDITION Audio Output Results IC4501 settings POWER INPUT RF (C) AV1 Out AV2 Out REC/ Input Mute A-Mute SELECT VV ON(H) PB(H) Selector Selector Select Select AV2IN AV1IN Mute AV2IN AV1IN EXT2 EXT1 AV2IN AV1IN Mute AV2IN AV1IN EXT2 EXT1...
  • Page 66 Mute signals INPUT CONDITION Audio Output Results IC4501 settings POWER INPUT RF (C) AV1 Out AV2 Out REC/ Input Mute A-Mute SELECT VV ON(H) PB(H) Selector Selector Select Select P.ON NO.TU VIDEO INSEL OUTSEL S-VIDEO C+.TU VIDEO INSEL OUTSEL S-VIDEO VIDEO AV1IN AV1IN...
  • Page 67 Mute signals INPUT CONDITION Audio Output Results IC4501 settings POWER INPUT RF (C) AV1 Out AV2 Out REC/ Input Mute A-Mute SELECT VV ON(H) PB(H) Selector Selector Select Select P.ON DECODER NO.TU VIDEO AV1IN AV1IN EXT1 S-VIDEO VIDEO AV2IN AV1IN AV2IN AV1IN EXT2...
  • Page 68 Mute signals INPUT CONDITION Audio Output Results IC4501 settings POWER INPUT RF (C) AV1 Out AV2 Out REC/ Input Mute A-Mute SELECT VV ON(H) PB(H) Selector Selector Select Select P.ON DECODER NO.TU VIDEO AV1IN AV1IN EXT1 S-VIDEO VIDEO AV1IN AV1IN EXT1 S-VIDEO C+.TU...
  • Page 69 SYSTEM CONTROL & SERVO ICs DC VOLTAGE CHART (SP MODE) IC1501 IC1502 Ref. No. MODE STOP PLAY IC2501 Ref. No. MODE STOP 15.4 15.4 15.6 -0.1 15.4 PLAY 15.0 15.0 15.2 15.0 15.1 15.0 15.3 -0.1 15.0 14.7 14.6 14.9 15.0 14.6 14.6...
  • Page 70 4.43 NTSC L BILINGUAL 443NT [L] BILINGUAL L A. COMP BIL [L] AUDIO COMPONENT SIGNAL BILINGUAL H BIL. [H] A. COMPO AUDIO COMPONENT SIGNAL BILINGUAL L AUDIO DUBBING PAUSE L BIL/M1 [L] A. D.P [L] AUDIO DUBBING PAUSE L BS CLOCK A.
  • Page 71 CYL GND CYLINDER GND FULL. E. 12V FULL ERASE 12V DELAIED FM RECORDING H D.F.M. REC [H] GND (ANALOG) GND [A] DELAIED FM RECORDING L D. FM REC [L] GND (TUNER) GND [TU] D. GND GND/NON SW 12V DIGITAL GND GND/N.
  • Page 72 POWER OFF H LINE IN [R] LINE INPUT (R) P-OFF [H] POWER OFF L LINE OUT [L] LINE OUTPUT (L) P-OFF [L] LINE OUT [R] LINE OUTPUT (R) P. FAIL POWER FAILURE DETECT LP H POWER OFF H LP [H] P.
  • Page 73 SYSTEM CONTROL 5V RF OUT RF OUTPUT SYSCON 5V SYSTEM SW RF Y RF LUMINANCE SIGNAL SYSTEM TAKE-UP PHOTO TRANSISTOR RF. Y. IN RF LUMINANCE SIGNAL INPUT T-PHOTO TAKE-UP REEL PULSE RF. Y. OUT RF LUMINANCE SIGNAL OUTPUT T-RL. PLS TIMER BUS CLOCK ROTAR.
  • Page 74 8 SCHEMATIC DIAGRAMS 8.1. POWER TRANSFORMER SECTION IN MAIN SCHEMATIC DIAGRAM THE STRIPED FRAME INDICATES THE PRIMARY CIRCUIT TO DISTINGUISH THE PRIMAR CAUTION FROM THE SECONDARY CIRCUIT. PAY ATTENTION NOT TO RECEIVE AN ELECTRIC SHOCK DURING REPAIR AND SERVIC THE PRODUCTS. C1121 1000P P1101...
  • Page 75 0.01 2200 RM ON THE POWER TRANSFORMER NG POINT AS FOLLOWS. NV-SV120EF NOTE:DO NOT USE ANY PART NUMBER SHOWN ON THIS SCHEMATIC DIAGRAM FOR POWER TRANSFORMER E IS SHOWN THE VOLTAGE WHEN ORDERING.WHEN YOU ORDER A PART,PLEASE REFER TO PARTS LIST.
  • Page 76 8.2. POWER SUPPLY/ RF SECTION IN MAIN SCHEMATIC DIAGRAM VIDEO MAIN SIGNAL PATH IN REC MODE AUDIO MAIN SIGNAL P P :TO POWER TRANSFORMER SECTION :TO SYSTEM CONTROL & SERVO SECTION V :TO LUMINANCE & CHROMINANCE/AUDEIO SECTION Q1013 Q1003 :TO Hi-Fi AUDIO SECTION 2SD601A 2SB710A :TO INPUT/OUTPUT SECTION...
  • Page 77 0.01 R7614 D1009 MA4033H R7613 D1010 MA165 NV-SV120EF NOTE:DO NOT USE ANY PART NUMBER SHOWN ON THIS POWER SUPPLY/RF SCHEMATIC DIAGRAM FOR ORDERING.WHEN YOU SECTION SCHEMATIC DIAGRAM ORDER A PART,PLEASE REFER TO PARTS LIST. N THIS DIAGRAM IS STOP MODE.
  • Page 78 8.3. TIMER SECTION IN MAIN SCHEMATIC DIAGRAM P :TO POWER TRANSFORMER SECTION DP7501 A2BA00000212 R :TO POWER SUPPLY/RF SECTION S :TO SYSTEM CONTROL & SERVO SECTION :TO INPUT/OUTPUT SECTION S-VHS P10 P11 P12 P1 R7507 HEATER (+) C7501 0.01 HEATER DC (-) D7501 C7502 R7511...
  • Page 79 EVQ11404M C7509 6800P R7503 R7502 R7501 R7538 4300 5600 8200 TIMER CHECK EJECT S7505 S7517 EVQ11L07B EVQ11L07B R7522 R7519 R7536 R7520 8200 4300 5600 NV-SV120EF N ON THIS SCHEMATIC DIAGRAM FOR ART,PLEASE REFER TO PARTS LIST. TIMER SECTION SCHEMATIC DIAGRAM...
  • Page 80 8.4. SYSTEM CONTROL & SERVO SECTION IN MAIN SCHEMATIC DIAGRAM CAPSTAN SERVO SPEED LOOP CAPSTAN SERVO PHASE LOOP :TO POWER TRANSFORMER SECTION :TO POWER SUPPLY/RF SECTION :TO LUMINANCE & CHROMINANCE/AUDIO SECTION A27 A28 :TO Hi-Fi AUDIO SECTION I :TO INPUT/OUTPUT SECTION :TO TIMER SECTION R1017 R2501...
  • Page 81 POS.SW3 R6072 Q6008 2SD601A (AV1 PB:ON) TL6010 QR6001 UN2215 (SWITCHING) R6073 D6004 470K 1SS355 R6071 R6074 R6075 TW2001 R6076 B10 B11 B12 B14 B15 B16 B17 B18 B19 B25 B26 B27 B22 NV-SV120EF SYSTEM CONTROL & SERVO SECTION SCHEMATIC DIAGRAM...
  • Page 82 6V47 0.47 150P R6054 R6056 1.2M 1.2M R6053 R6055 R6051 R6058 6800 6800 560K 2200 R2512 R6060 Q6004 2SB709A (AMP) R6061 R2510 R2511 C2515 C2516 35V4.7 35V4.7 C2519 25V47 C2517 6V47 L2501 NV-SV120EF SYSTEM CONTROL & SERVO SECTION SCHEMATIC DIAGRAM...
  • Page 83 UNREG 14V R2509 C2517 C6001 6V47 6V47 L2501 L6001 100u PS 12V NV-SV120EF SYSTEM CONTROL & SERVO NOTE:DO NOT USE ANY PART NUMBER SHOWN ON THIS SCHEMATIC DIAGRAM FOR ORDERING.WHEN YOU ORDER A PART,PLEASE REFER TO PARTS LIST. SECTION SCHEMATIC DIAGRAM...
  • Page 84 8.5. LUMINANCE & CHROMINANCE/ AUDIO SECTION IN MAIN SCHEMATIC DIAGRA R :TO POWER SUPPLY/RF SECTION VIDEO MAIN SIGNAL PATH IN REC MODE :TO SYSTEM CONTROL & SERVO SECTION VIDEO MAIN SIGNAL PATH IN PLAYBACK MODE :TO Hi-Fi AUDIO SECTION AUDIO MAIN SIGNAL PATH IN REC MODE :TO INPUT/OUTPUT SECTION AUDIO MAIN SIGNAL PATH IN PLAYBACK MODE MUTE...
  • Page 85 2SD601A (PB:ON) C4013 C4014 R4013 0.01 6V47 R4012 R4010 R4009 R4011 NV-SV120EF THE MEASUREMENT MODE OF THE DC VOLTAGE OUT OF THE BRACKETS ON THIS DIAGRAM IS PLAYBACK MODE WITH SECAM COLOUR SIGNAL.(SP MODE) LUMINANCE & CHROMINANCE/AUDIO SECTION SCHEMATIC DIAGRAM...
  • Page 86 C3013 C3058 R3038 C3014 C3053 C3008 C3009 6200 5600 0.01 50V4.7 C3012 6V47 C3005 R3001 C3001 L3002 C3011 1500 150P 0.01 R3037 1200 R3033 NV-SV120EF NOTE:DO NOT USE ANY PART NUMBE LUMINANCE & CHROMINANCE/AUDIO SECTION SCHEMATIC DIAGRAM ORDERING.WHEN YOU ORDER...
  • Page 87 :ON) FREQ.ADJ R3037 L3010 C3054 QR3006 1200 UN2212 S-VHS (S-VHS :ON) Y/C VIDEO OUT NV-SV120EF LUMINANCE & CHROMINANCE/AUDIO USE ANY PART NUMBER SHOWN ON THIS SCHEMATIC DIAGRAM FOR NG.WHEN YOU ORDER A PART,PLEASE REFER TO PARTS LIST. SECTION SCHEMATIC DIAGRAM...

  • Page 88: Table Of Contents

    8.6. Hi-Fi AUDIO SECTION IN MAIN SCHEMATIC DIAGRAM :TO POWER SUPPLY/RF SECTION AUDIO MAIN SIGNAL PATH IN REC MODE AUDIO MAIN SIGNAL PATH IN PLAY :TO SYSTEM CONTROL & SERVO SECTION :TO LUMINANCE & CHROMINANCE/AUDIO SECTION :TO INPUT/OUTPUT SECTION L4502 :TO DECODER SECTION 1.2u C4525...
  • Page 89 R4517 C4516 C4505 10V33 L4501 1.2u NV-SV120EF NOTE:DO NOT USE ANY PART NUMBER SHOWN ON THIS KETS ON THIS DIAGRAM IS PLAYBACK MODE SCHEMATIC DIAGRAM FOR ORDERING.WHEN YOU Hi-Fi AUDIO SECTION SCHEMATIC DIAGRAM ORDER A PART,PLEASE REFER TO PARTS LIST.
  • Page 90 8.7. INPUT/ OUTPUT SECTION IN MAIN SCHEMATIC DIAGRAM :TO POWER SUPPLY/RF SECTION VIDEO MAIN SIGNAL PATH IN REC MODE VIDEO MAIN SIGNAL PATH IN PLAYBACK MODE :TO SYSTEM CONTROL & SERVO SECTION :TO LUMINANCE & CHROMINANCE/AUDIO SECTION :TO Hi-Fi AUDIO SECTION R4901 C4903 T :TO TIMER SECTION...
  • Page 91 :ON) R4912 Q4903 2SD601A R3040 R4925 (PROG :ON) 4700 4700 NV-SV120EF INPUT/OUTPUT SECTION HIS DIAGRAM IS PLAYBACK MODE NOTE:DO NOT ANY PART NUMBER SHOWN ON THIS SCHEMATIC DIAGRAM FOR ORDERING.WHEN YOU ORDER A PART,PLEASE REFER TO PARTS LIST. SCHEMATIC DIAGRAM...

  • Page 92: R :To Power Supply/Rf Section

    8.8. DECODER SECTION IN MAIN SCHEMATIC DIAGRAM R :TO POWER SUPPLY/RF SECTION S :TO SYSTEM CONTROL & SERVO SECTION A :TO Hi-Fi AUDIO SECTION C7628 IC7601 C0EAH0000051 (RESET) SIF2 C7624 R7623 INPUT SWITCH VREF1 AGC, L7607 R7615 C7625 2.2u 0.01 SIF1 R7618 CRESET...
  • Page 93 OUT L MONO ANALOG CROSSBAR CHANNEL SWITCH OUTPUT BUFFERS IC7602 TDA9874AH R7628 LB7603 C7635 C7634 6V47 J0JCC0000124 100P TL7601 TL7602 C7638 TL7603 BER SHOWN ON THIS SCHEMATIC DIAGRAM FOR NV-SV120EF R A PART,PLEASE REFER TO PARTS LIST. DECODER SECTION SCHEMATIC DIAGRAM...
  • Page 94 8.9. SECAM SCHEMATIC DIAGRAM VIDEO MAIN SIGNAL PATH IN REC MODE R8803 120K VIDEO MAIN SIGNAL PATH IN PLAYBACK MODE C880 50V2 SECAM SYNC SECAM SENS SYNC GETE GENE/ GENE V-SEP TO MUTE/ SYNC GATE P8801 P3003-15 C SYNC P3003-14 IC8801 P3003-13 LA70100M...

  • Page 95: 6V100

    (5.0) UN2111 (PB SECAM:ON) (5.0) QR8804 Q8801 UN2211 2SD601A (PB:ON) (AMP) R8804 (2.1) (4.9) NOTE:DO NOT USE ANY PART NUMBER SHOWN ON THIS SCHEMATIC DIAGRAM FOR ORDERING.WHEN YOU NV-SV120EF ORDER A PART,PLEASE REFER TO PARTS LIST. SECAM PACK SCHEMATIC DIAGRAM...
  • Page 96 8.10. S-VHS PACK SCHEMATIC DIAGRAM VIDEO MAIN SIGNAL PATH IN REC MODE VIDEO MAIN SIGNAL PATH IN PLAYBACK MODE PS3301 V MASK SYS IIC DATA SYS IIC CLOCK PS 3.3V L3301 C IN DNR 5V PB C C3383 C3355 R3313 R3314 6V0.47 EMPHA OUT...

  • Page 97: (Buffer) -0.3

    (2.3) R3367 1100 C3386 C3387 L3309 C3385 100u CRADJ SSEP R3365 R3364 (1.9) Q3317 2SB1218A (AMP) 3362 C3345 C3343 C3342 50V4.7 0.01 16V10 NV-SV120EF DC VOLTAGE OUT OF THE BRACKETS ON THIS DIAGRAM IS PLAYBACK MODE S-VHS PACK SCHEMATIC DIAGRAM...
  • Page 98 (3D Y/C SEP & 3D NR TBC) C3307 C3311 C3309 L3312 C3308 1500P C3379 NV-SV120EF NOTE:DO NOT USE ANY PART NUMBER SHOWN ON THIS SCHEMATIC DIAGRAM S-VHS PACK SCHEMATIC DIAGRAM FOR ORDERING.WHEN YOU ORDER A PART,PLEASE REFER TO PARTS LIST.
  • Page 99 ENCODER HD OUT (BURST CHANGE) VD OUT BLACK VDD IO2 DELAY EXPANSION ADJ. (SYNC OSD A2 CHANGE) C3301 OSD A1 OSD B OSD G OSD R C3307 C3306 C3305 NV-SV120EF CHEMATIC DIAGRAM S-VHS PACK SCHEMATIC DIAGRAM REFER TO PARTS LIST.

  • Page 100: Gnd

    8.11. TV DEMODULATOR PACK SCHEMATIC DIAGRAM VIDEO SIGNAL PATH AUDIO SIGNAL PAT PP0701 (TO TUNER) 4MHz R0735 C0730 R0734 16V22 6800 C0703 R0711 0.01 5600 R0727 X0706 VLF1372 C0728 C0717 L0706 50V0.1 0.01 150u D0703 C0706 MA80WK 0.01 R0710 L0707 150u R0709 C0705...
  • Page 101 C0725 50V2.2 VR0701 10KB C0715 C0716 C0726 0.01 390P 1500P C0735 R0722 R0717 R0755 R0756 R0737 0.01 5600 5600 NV-SV120EF NUMBER SHOWN ON THIS SCHEMATIC DIAGRAM FOR OU ORDER A PART,PLEASE REFER TO PARTS LIST. TV DEMODULATOR PACK SCHEMATIC DIAGRAM...
  • Page 102 8.12. FRONT SCHEMATIC DIAGRAM VIDEO MAIN SIGNAL PATH IN REC MODE AUDIO MAIN SIGNAL PATH IN REC MODE IC4801 PNA4618M10V JK4801 (IR RECEIVER) K2HA307A0003 AUDIO AUDIO VIDEO IN (R/N) IN (L) C4805 C4806 L4802 L4801 R4801 BOTTOM PLATE R4803 R4802 C4804 C4803 1000P...
  • Page 103 S-VIDEO JK4802 VJJ0574 R4805 R4804 NV-SV120EF FRONT SCHEMATIC DIAGRAM...
  • Page 104 P2502-5 P2502-4 P2502-3 MAIN COIL 1 P2502-2 P2502-1 NV-SV120EF CYLINDER STATOR NOTE:DO NOT USE ANY PART NUMBER SHOWN ON THIS SCHEMATIC DIAGRAM FOR SCHEMATIC DIAGRAM ORDERING.WHEN YOU ORDER A PART,PLEASE REFER TO PARTS LIST. 8.14. CAPSTAN UNIT SCHEMATIC DIAGRAM R0206...
  • Page 105 R0212 R0213 Q0203 Q0202 Q0201 R0210 D0203 TL0204 TL0202 TL0203 TL0201 L0201 C0208 R0204 C0210 C0209 OUT2 CAPSTAN MOTOR DRIVER MAIN COIL OUT1 TL0205 DRIVER CONTROL LOGIC NV-SV120EF CAPSTAN UNIT SCHEMATIC DIAGRAM...
  • Page 106 T1150-3 STOP T1150-6 STOP T1150-7 STOP Q1150-G STOP T1150-5 STOP 1.6Vp-p (5msec.div.) 340Vp-p (5usec.div.) 18Vp-p (10usec.div.) 15Vp-p (5usec.div.) 330Vp-p (5usec.div.) Q1200-1,2 STOP IC6001-13 PAUSE IC6001-18 REC IC6001-19 REC IC6001-48 REC 0.5Vp-p (5usec.div.) 5.0Vp-p (10msec.div.) 5.0Vp-p (10msec.div.) 5.0Vp-p (10msec.div.) 5.0Vp-p (10msec.div.) [SECAM] [PAL] IC6001-52 REC...
  • Page 107 [PAL] [SECAM] [PAL] [PAL] [PAL] PP3001-8 PLAY PP3001-8 PLAY PP3001-10 REC/PLAY PP3001-12 REC/PLAY PP3002-4 REC/PLAY 0.8Vp-p (20µsec.div.) 0.5Vp-p (20µsec.div.) 0.4Vp-p (20µsec.div.) 0.5Vp-p (20µsec.div.) 2.0Vp-p (20µsec.div.) [PAL] [PAL] [SECAM] [PAL] [PAL] PP3002-8 REC/PLAY PP3002-6 REC/PLAY PP3002-8 REC/PLAY PP3002-12 REC PP3002-10 REC/PLAY 1.6Vp-p (20µsec.div.) 2.0Vp-p (20 µsec.div.) 1.2Vp-p (20µsec.div.)
  • Page 108 AUDIO HEAD P5001 MUTE FROM TV TUNER AUDIO (N) DEMODULATOR FM MODULATOR/ DEMODULATOR NORMAL P4002 A.HEAD (W) MUTE SELECT SWITCH TO/FROM FROM MUTE AC HEAD & MUTE H SYSTEM SWITCH CONTROL P4002 MUTE A.HEAD (R) TRAP NV-SV120EF AUDIO BLOCK DIAGRAM...
  • Page 109 P3003 P8801 SYSTEM CONTROL MUTE MUTE BUFFER BUFFER REC/PB QR8802 P3003 P8801 SECAM FROM SYSTEM QR8803 CONTROL P3003 P8801 V.EE QR8804 Q8801 P3003 P8801 PB SECAM C BUFFER LUMINANCE & CHROMINANCE P3003 P8801 REC SECAM C NV-SV120EF SECAM BLOCK DIAGRAM...
  • Page 110 (3D YC SEP & 3D NR TBC) DECODER 4FSC Q3312 BUFFER BIAS BLACK DELAY EXPANSION & ADJ. SAMPLING FEED-BACK SYNC CHANGE CLAMP 8FSC 4FSC PEDESTAL CLAMP DELAY 3D NR ADJ. ENCODER BURST SAMPLING 8FSC CHANGE SYNCHRONIZATION PROCESSING TIMING CONTROL NV-SV120EF S-VHS BLOCK DIAGRAM...
  • Page 111 S7512 S7511 S7504 Q1501 D1501 Q1502 S7507 TAKE UP SENSOR SUPPLY SAFETY 79 S-REEL PULSE PHOTO PHOTO TAB SW SENSOR SENSOR 7 AN0 P4002 94 CTL HEAD (-) HEAD P4002 CTL HEAD (+) NV-SV120EF SYSTEM CONTROL & SERVO BLOCK DIAGRAM...
  • Page 112 VIDEO/Y IN TV DEMODULATOR V IN1 TUNER VIDEO CLAMP C OUT REC C C IN1 JK4801 VIDEO IN PS4801 PP3901 FRONT VIDEO IN JK4802 S-VIDEO PS4801 PP3901 FRONT C IN PS4801 PP3901 FRONT Y IN NV-SV120EF LUMINANCE & CHROMINANCE BLOCK DIAGRAM...
  • Page 113 VIDEO HEAD P5001 LP/EP R C CLOCK EXTERNAL PB LUMINANCE TO C CCD DRIVER SIGNAL INPUT LINE (NOT USED IN THESE MODELS) TO SYSTEM CONTROL S-VHS S-VHS DET H NV-SV120EF NV-SV120EF LUMINANCE & CHROMINANCE BLOCK DIAGRAM LUMINANCE & CHROMINANCE BLOCK DIAGRAM...
  • Page 114 L0201 R0208 UNLOADING C0208 HOLE LOADING SENSOR R0204 C0210 C0209 ED/S TORQUE DIRECTION OUT2 CAPSTAN MOTOR DRIVER MAIN COIL HALL R0209 POWER EC AMP OUT1 HOLE SENSOR TL0205 DRIVER CONTROL LOGIC R0201 R0211 C0206 C0207 NV-SV120EF CAPSTAN UNIT SCHEMATIC DIAGRAM...
  • Page 115 P2502-7 P2502-6 HALL IC GND (CYL) P2502-5 P2502-4 P2502-3 MAIN COIL 1 P2502-2 P2502-1 NV-SV120EF CYLINDER STATOR NOTE:DO NOT USE ANY PART NUMBER SHOWN ON THIS SCHEMATIC DIAGRAM FOR SCHEMATIC DIAGRAM ORDERING.WHEN YOU ORDER A PART,PLEASE REFER TO PARTS LIST.
  • Page 116 C7638 TL7603 NOTE:DO NOT USE ANY PART NUMBER SHOWN ON THIS SCHEMATIC DIAGRAM FOR NV-SV120EF NOTE:THE MEASUREMENT MODE OF THE DC VOLTAGE ON THIS DIAGRAM IS STOP MODE. ORDERING.WHEN YOU ORDER A PART,PLEASE REFER TO PARTS LIST. DECODER SECTION SCHEMATIC DIAGRAM...

  • Page 117: R4533 C4530 16V10

    D.FM REC L4501 1.2u NV-SV120EF NOTE:DO NOT USE ANY PART NUMBER SHOWN ON THIS NOTE:THE MEASUREMENT MODE OF THE DC VOLTAGE IN THE BRACKETS( )ON THIS DIAGRAM IS RECORD MODE THE MEASUREMENT MODE OF THE DC VOLTAGE OUT OF THE BRACKETS ON THIS DIAGRAM IS PLAYBACK MODE SCHEMATIC DIAGRAM FOR ORDERING.WHEN YOU...
  • Page 118 5600 8200 NOTE:DO NOT USE ANY PART NUMBER SHOWN ON THIS SCHEMATIC DIAGRAM FOR ORDERING.WHEN YOU ORDER A PART,PLEASE REFER TO PARTS LIST. NV-SV120EF NOTE:THE MEASUREMENT MODE OF THE DC VOLTAGE ON THIS DIAGRAM IS STOP MODE. FRONT SCHEMATIC DIAGRAM...
  • Page 119 4700 GND (AV) GND (FIP) NV-SV120EF INPUT/OUTPUT SECTION NOTE:THE MEASUREMENT MODE OF THE DC VOLTAGE IN THE BRACKETS( )ON THIS DIAGRAM IS RECORD MODE THE MEASUREMENT MODE OF THE DC VOLTAGE OUT OF THE BRACKETS ON THIS DIAGRAM IS PLAYBACK MODE NOTE:DO NOT ANY PART NUMBER SHOWN ON THIS SCHEMATIC DIAGRAM FOR WITH SECAM COLOUR SIGNAL.(SP MODE)
  • Page 120 0.01 2200 NOTE1:WHEN MEASURE THE VOLTAGE OR WAVEFORM ON THE POWER TRANSFORMER CIRCUIT,SET THE GND TERMINAL OF MEASURING POINT AS FOLLOWS. NV-SV120EF PRIMARY SIDE..SECONDARY SIDE... IMPORTANT SAFETY NOTICE: NOTE:DO NOT USE ANY PART NUMBER SHOWN ON THIS SCHEMATIC DIAGRAM FOR...

  • Page 121: A1 A2 A3

    D1002 C1011 D1005 25V47 MA4056NH 25V47 MA4056NH NV-SV120EF IMPORTANT SAFETY NOTICE: NOTE:DO NOT USE ANY PART NUMBER SHOWN ON THIS POWER SUPPLY/RF COMPONENTS IDENTIFIED WITH THE MARK HAVE THE SPECIAL CHARACTERISTICS FOR SAFETY. SCHEMATIC DIAGRAM FOR ORDERING.WHEN YOU SECTION SCHEMATIC DIAGRAM WHEN REPLACING ANY OF THESE COMPONENTS,USE ONLY THE SAME TYPE.
  • Page 122 NOTE:DO NOT USE ANY PART NUMBER SHOWN ON THIS THE MEASUREMENT MODE OF THE DC VOLTAGE OUT OF THE BRACKETS ON THIS DIAGRAM IS PLAYBACK MODE SCHEMATIC DIAGRAM FOR ORDERING.WHEN YOU NV-SV120EF WITH SECAM COLOUR SIGNAL.(SP MODE) ORDER A PART,PLEASE REFER TO PARTS LIST.
  • Page 123 16V10 C3374 270P NV-SV120EF NOTE:THE MEASUREMENT MODE OF THE DC VOLTAGE IN THE BRACKETS( )ON THIS DIAGRAM IS RECORD MODE THE MEASUREMENT MODE OF THE DC VOLTAGE OUT OF THE BRACKETS ON THIS DIAGRAM IS PLAYBACK MODE S-VHS PACK SCHEMATIC DIAGRAM WITH PAL COLOUR SIGNAL.(SP MODE)
  • Page 124 C3307 C3306 C3305 C3311 C3309 L3312 C3308 1500P C3379 NV-SV120EF NV-SV120EF NOTE:DO NOT USE ANY PART NUMBER SHOWN ON THIS SCHEMATIC DIAGRAM S-VHS PACK SCHEMATIC DIAGRAM S-VHS PACK SCHEMATIC DIAGRAM FOR ORDERING.WHEN YOU ORDER A PART,PLEASE REFER TO PARTS LIST.

  • Page 125: B1 B2

    R6071 R6074 SENSOR C6015 R6023 R6075 16V10 D1501 SIR505S R2507 R2508 270K GND(SYS) TW2001 R6076 GND(FIP) GND(CTL) GND(FG) GND(MOTOR) B10 B11 B12 B14 B15 B16 B17 B18 B19 B25 B26 B27 B22 NV-SV120EF SYSTEM CONTROL & SERVO SECTION SCHEMATIC DIAGRAM...
  • Page 126 6V47 L2501 L6001 100u PS 12V NV-SV120EF NV-SV120EF SYSTEM CONTROL & SERVO NOTE:DO NOT USE ANY PART NUMBER SHOWN ON THIS SCHEMATIC DIAGRAM FOR ORDERING.WHEN YOU ORDER A PART,PLEASE REFER TO PARTS LIST. SYSTEM CONTROL & SERVO SECTION SCHEMATIC DIAGRAM...
  • Page 127 6V220 4300 5600 BACK UP 5V NV-SV120EF NOTE:DO NOT USE PART NUMBER SHOWN ON THIS SCHEMATIC DIAGRAM FOR NOTE:THE MEASUREMENT MODE OF THE DC VOLTAGE ON THIS DIAGRAM IS STOP MODE. ORDERING.WHEN YOU ORDER A PART,PLEASE REFER TO PARTS LIST.
  • Page 128 5600 5600 NOTE:DO NOT USE PART NUMBER SHOWN ON THIS SCHEMATIC DIAGRAM FOR NV-SV120EF NOTE:THE MEASUREMENT MODE OF THE DC VOLTAGE ON THIS DIAGRAM IS STOP MODE. ORDERING.WHEN YOU ORDER A PART,PLEASE REFER TO PARTS LIST. TV DEMODULATOR PACK SCHEMATIC DIAGRAM...
  • Page 129 R4010 PS 5V VIDEO 5V NV-SV120EF NOTE:THE MEASUREMENT MODE OF THE DC VLOLTAGE IN THE BRACKETS( )ON THIS DIAGRAM IS RECORD MODE THE MEASUREMENT MODE OF THE DC VOLTAGE OUT OF THE BRACKETS ON THIS DIAGRAM IS PLAYBACK MODE WITH SECAM COLOUR SIGNAL.(SP MODE) WITH SECAM COLOUR SIGNAL.(SP MODE)
  • Page 130 UN2212 S-VHS R3033 (S-VHS :ON) Y/C VIDEO OUT NV-SV120EF LUMINANCE & CHROMINANCE/AUDIO NV-SV120EF NOTE:DO NOT USE ANY PART NUMBER SHOWN ON THIS SCHEMATIC DIAGRAM FOR LUMINANCE & CHROMINANCE/AUDIO SECTION SCHEMATIC DIAGRAM ORDERING.WHEN YOU ORDER A PART,PLEASE REFER TO PARTS LIST.
  • Page 131 (VEM0715) CYLINDER STATOR UNIT Integrated Circuit HALL IC Connector M1 VM P2901 ADDRESS INFORMATION HALL IC VM M2 P2901 NV-SV120EF CYLINDER STATOR UNIT...
  • Page 132 FRONT C.B.A. Integrated Circuit IC4801 Connector PS4801 ADDRESS INFORMATION (VEP04832A) NV-SV120EF FRONT C.B.A.
  • Page 133 Q1008 IC6001 TL6010 Q6004 Q6009 TW3023 IC6003 IC7601 Q3006 TW3022 TL6012 TW3901 IC1501 IC1502 QR6004 Q1003 TL6013 Q1010 Q6008 Q1002 Q1009 QR6001 IC1200 QR1004 Q1005 TW2001 QR1005 IC7503 Q1012 S7507 IC7504 Q1001 IC7501 IC6002 Q1013 QR1003 PP3901 NV-SV120EF MAIN C.B.A.
  • Page 134 TW3901 QR3003 TW4501 QR3006 TW4502 QR3007 TW4503 QR4001 TW4504 QR4002 TW4505 QR4005 TW4506 QR4501 TW4511 QR4503 TW6002 QR4504 Connector QR4901 P1101 QR4902 P1501 QR6001 P2501 QR6004 P2502 P3003 P4001 P4002 P5001 PP3001 PP3002 PP3901 TU7601 ADDRESS INFORMATION NV-SV120EF MAIN C.B.A.
  • Page 135 SECAM C.B.A. Transistor Q8801 Transistor & Resistor QR8801 QR8802 QR8803 QR8804 Integrated Circuit IC8801 Test Point TL8801 TL8802 TL8803 Connector P8801 ADDRESS INFORMATION (VEP08328A) NV-SV120EF SECAM C.B.A.

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