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Panasonic NV-FJ623EC Service Manual
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Panasonic NV-FJ623EC Service Manual

Panasonic NV-FJ623EC Service Manual

Z-mechanism
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ORDER NO. VRD0202005C2
Video Cassette Recorder
NV-FJ623EC / NV-FJ623ECN
Z-MECHANISM
SPECIFICATIONS
2002 Matsushita Electric Industrial Co., Ltd. All rights reserved.
Unauthorized copying and distribution is a violation of law.
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Summary of Contents for Panasonic NV-FJ623EC

  • Page 1 ORDER NO. VRD0202005C2 Video Cassette Recorder NV-FJ623EC / NV-FJ623ECN Z-MECHANISM SPECIFICATIONS 2002 Matsushita Electric Industrial Co., Ltd. All rights reserved. Unauthorized copying and distribution is a violation of law.
  • Page 2 1. INTRODUCTION This service manual contains technical information which will allow service personnel to 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.
  • 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. Model Option Option Option / Code Code 1 Code 2 Code 3 NV-FJ623EC/ECN (42h) (7Dh) (C4h) (6h) Fig. S2 Model Code & Option Code NOTE: Since all electrical adjustments data is still not available, perform the Electrical Adjustment continuously.
  • Page 5 C. Remove 2 screws (B). D. Remove the Cylinder Rotor Unit. 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.
  • Page 6 Cylinder Retainer are at right angles with the P3502 Connection. 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 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 Cassette, VFK0923FT [for service purposes] and VFK0923FSE [ for end users] for all VHS/SVHS VCP and VCR.
  • Page 9 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. VFK0923FT (For Service usage) Type of Cassette Full VHS Cassette Cleaning Time 10 Seconds/Time Tape Length...
  • Page 10 VFK0823FSE (For end users) 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. SERVICING POSITION Fig.
  • Page 15 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 1. TAPE SPEED: SP 2. CHANNEL: AV1/AV2 (Set to signal input terminal number) 3.3.3. ADJUSTMENTS Fig.E1 Fig.E2 CONDITION: BURST SIGNAL OFF / 75 ohm TERMINATED 3.3.4. PG SHIFTER ADJUSTMENT / (AUTOMATIC)
  • Page 17 PROCEDURES FIP DISPLAY Press the FF and EJECT Keys simultaneously for 3 seconds. Press the FF and EJECT Keys simultaneously twice. Press the EJECT key for 3 seconds. Press the CH UP key once. Insert the Alignment cassette tape. (PAL:VFJ8125H3F) When the sequence of the automatical adjustment has been terminated, the following action has been made.
  • Page 18 PROCEDURES FIP DISPLAY Press the FF and EJECT Keys simultaneously for 3 seconds. Press the FF and EJECT Keys simultaneously twice. Press the EJECT key for 3 seconds. Press the CH UP key in 3 times. Insert the blank cassette tape. (The adjustment is automatically started.) When the sequence of the automatical adjustment...
  • Page 19 PROCEDURES FIP DISPLAY Connect the Oscilloscope to: *CH1..Video Out (TW3002). *CH2..V.FREQ.(TW6002) Press the "4" key on the remote controller. (Confirm that TW6002 becomes high(5V)). Adjust the Frequency response by pressing the "2"(increase) and/or "8"(decrease) key on the Remote Controller. (See Fig.E2) Store the Adjusted value by pressing the "5"...
  • Page 20 4. ABBREVIATIONS 5. INPUT/OUTPUT CHART 5.1. INPUT/OUTPUT CHART FOR IC6001 Fig. MP1 Fig. MP2 Fig. MP3 Fig. MP4 5.2. TRUTH TABLE 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.
  • Page 21 8.5. LUMINANCE & CHROMINANCE/ AUDIO SECTION IN MAIN SCHEMATIC DIAGRAM 8.6. Hi-Fi AUDIO SECTION IN MAIN SCHEMATIC DIAGRAM 8.7. INPUT/ OUTPUT SECTION IN MAIN SCHEMATIC DIAGRAM 8.8. TV DEMODULATOR PACK SCHEMATIC DIAGRAM 8.9. NICAM DECODER PACK SCHEMATIC DIAGRAM 8.10. CYLINDER STATOR UNIT SCHEMATIC DIAGRAM 8.11.
  • Page 22 10.2. CASING PARTS SECTION...
  • Page 23 10.3. PACKING PARTS SECTION...
  • Page 24 11. REPLACEMENT PARTS LIST...
  • Page 25 11.1. CHASSIS PARTS SECTION PARTS LIST...
  • Page 26 Ref. No. Part No. Part Name & Description Remarks VEG1598 CYLINDER UNIT [MAVD] VXP2170 UPPER CYLINDER UNIT [MAVD] 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...
  • 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 VHD1118 SCREW VHD1118 SCREW VHD0842 SCREW VHD0843 SCREW VHD0843 SCREW VHD0844 SCREW VHD0844 SCREW VHD1066 SCREW VHD1066...
  • Page 28 Ref. No. Part No. Part Name & Description Remarks VGM1834 TOP PANEL [MAVD] VYP8356 FRONT PANEL UNIT [MAVD] RKA0072-K FOOT RKA0072-K FOOT VGB0554 SUPER DRIVE BADGE VKF3485 BLINDER PANEL [MAVD] VMB2521 BLINDER SPRING VKU0575 BOTTOM PLATE [MAVD] VMZ3099 VO SHEET [MAVD] VJH1175 AV JACK PLATE...
  • Page 29 Ref. No. Part No. Part Name & Description Remarks VQT9843 OPERATING INSTRUCTIONS (SPANISH/ [MAVD] NV-FJ623EC-S PORTUGUESE) VQT9840 OPERATING INSTRUCTIONS (ENGLISH/ [MAVD] NV-FJ623ECNS GERMAN/FRENCH/ITALIAN/DUTCH/ GREEK) VQT9844 OPERATING INSTRUCTIONS (SWEDISH [MAVD] NV-FJ623ECNS /DANISH/FINNISH) N2QAHB000022 REMOTE CONTROLLER [MAVD] R0185-720010 BATTERY COVER [MAVD] VJA0728-A...
  • Page 30 Ref. No. Part No. Part Name & Description Remarks VEP06E55N MAIN C.B.A. (RTL)[MAVD] THE FOLLOWING C.B.A.S ARE INCLUDED IN MAIN C.B.A. VEP07A18R,VEP07A23S VEP07A18R NICAM DECODER PACK C.B.A. (RTL)[MAVD] INCLUDED IN MAIN C.B.A.(VEP06E55N). VEP07A23S TV DEMODULATOR PACK C.B.A (RTL)[MAVD] INCLUDED IN MAIN C.B.A.(VEP06E55N).
  • Page 31 C1108 ECQB1H223JF3 P.CAPACITOR 50V 0.022U...
  • Page 32 Ref. No. Part No. Part Name & Description Remarks C1109 ECQB1H473JF3 P.CAPACITOR 50V 0.047U C1110 ECQV1H104JL3 P.CAPACITOR 50V 0.1U C1111 ECQB1H103JZ P.CAPACITOR 50V 0.01U C1112 F1BAF1020020 CERAMIC CAPACITOR [MAVD] C1201 F1B3A332A004 E.CAPACITOR 1KV 3300U [MAVD] C1202 VCEA1HJB560B E.CAPACITOR 50V 56U F2A1H560A101 [MAVD] C1203 EEUFG1E821...
  • Page 33 Ref. No. Part No. Part Name & Description Remarks C3030 ECUX1C104ZFV C.CAPACITOR CH 16V 0.1U C3031 ECUX1H103ZFV C.CAPACITOR CH 50V 0.01U ECJ1XF1H103Z C3032 ECUX1H222KBV C.CAPACITOR CH 50V 2200P ECJ1XB1H222K C3033 ECEA1HKAR47B E.CAPACITOR 50V 0.47U C3035 ECEA1EKN4R7B E.CAPACITOR 25V 4.7U C3036 ECUX1C104ZFV C.CAPACITOR CH 16V 0.1U C3037...
  • Page 34 Ref. No. Part No. Part Name & Description Remarks C4031 ECQB1H223JF3 P.CAPACITOR 50V 0.022U C4032 ECUX1H221JCV C.CAPACITOR CH 50V 220P ECJ1XC1H221J C4034 ECUX1H822KBV C.CAPACITOR CH 50V 8200P C4501 ECEA1CKS100 E.CAPACITOR 16V 10U C4502 ECEA1CKS100 E.CAPACITOR 16V 10U C4503 ECEA1CKS100 E.CAPACITOR 16V 10U C4504 ECQB1H473JF4 P.CAPACITOR 50V 0.047U...
  • Page 35 Ref. No. Part No. Part Name & Description Remarks C4925 ECUX1C104ZFV C.CAPACITOR CH 16V 0.1U C4926 ECEA1AKS221 E.CAPACITOR 10V 220U C4928 ECUX1C104KBV C.CAPACITOR CH 16V 0.1U ECJ1XB1C104K C4929 ECUX1C104ZFV C.CAPACITOR CH 16V 0.1U C4930 ECUX1C104ZFV C.CAPACITOR CH 16V 0.1U C4937 ECUX1C104KBV C.CAPACITOR CH 16V 0.1U ECJ1XB1C104K...
  • Page 36 Ref. No. Part No. Part Name & Description Remarks C7604 ECEA0JKS101 E.CAPACITOR 6.3V 100U C7610 ECEA1HKS010 E.CAPACITOR 50V 1U C7613 ECUX1H103ZFN C.CAPACITOR CH 50V 0.01U ECJ2XF1H103Z C7614 ECUX1H330JCV C.CAPACITOR CH 50V 33P ECJ1XC1H330J C7615 ECUX1H330JCV C.CAPACITOR CH 50V 33P ECJ1XC1H330J C7616 ECEA0JKS101 E.CAPACITOR 6.3V 100U...
  • Page 37 FL7301 VLF0633 FILTER J0HACK000008...
  • Page 38 Ref. No. Part No. Part Name & Description Remarks IC0701 LA75503 C1AA00000606 IC1201 UPC1093J C0DAEMC00002 IC1501 RPI354N B3EZ00000001 IC1502 RPI354N B3EZ00000001 IC2501 AN3811NK IC3001 AN3531NFBS IC3501 AN3368SB IC4501 AN3656NFBPBV IC4901 LA73021M C1AB00000933 IC6001 C2CBJG000215 [MAVD] IC7301 TDA9874AH C1AB00001404 IC7302 PST7043 C0EAH0000051 IC7501 M35502AFP...
  • Page 39 L3006 VLQ0599J101 COIL 100UH G0C101JA0026...
  • Page 40 Ref. No. Part No. Part Name & Description Remarks L3007 VLQ0599J680 COIL 68UH G0C680JA0026 L3008 VLQ0599J101 COIL 100UH G0C101JA0026 L3009 VLQ0599J330 COIL 33UH G0C330JA0026 L3010 VLQ0599J470 COIL 47UH G0C470JA0026 L3011 VLQ0599J390 COIL 39UH G0C390JA0026 L3012 VLQ0599J560 COIL 56UH G0C560JA0026 L3501 VLQ0599J330 COIL 33UH G0C330JA0026...
  • Page 41 Ref. No. Part No. Part Name & Description Remarks PP0701 VJP3589E004B CONNECTOR (MALE) 4P K1KA04B00135 Q0702 2SD601A-S TRANSISTOR Q1001 2SC1959-Y TRANSISTOR Q1002 2SD602A-R TRANSISTOR 2SD0602AR Q1003 2SC1959-Y TRANSISTOR Q1004 2SC1959-Y TRANSISTOR Q1005 2SD602A-R TRANSISTOR 2SD0602AR Q1006 2SD601A-R TRANSISTOR 2SD0601AR Q1007 2SC1959-Y TRANSISTOR Q1008...
  • Page 42 Ref. No. Part No. Part Name & Description Remarks R0719 ERJ3GEYJ472 M.RESISTOR CH 1/16W 4.7K R0725 ERJ6GEYJ101V M.RESISTOR CH 1/10W 100 R0727 ERJ3GEY0R00 M.RESISTOR CH 1/16W 0 R0729 ERJ3GEYJ103 M.RESISTOR CH 1/16W 10K R0730 ERJ6GEYG103 M.RESISTOR CH 1/10W 10K R0740 ERJ3GEYG471V M.RESISTOR CH 1/16W 470 R0741...
  • Page 43 Ref. No. Part No. Part Name & Description Remarks R1505 ERJ6GEYJ101V M.RESISTOR CH 1/10W 100 R2501 ERJ6GEY0R00V M.RESISTOR CH 1/10W 0 D0GBR00JA017 R2502 ERJ6GEYG222 M.RESISTOR CH 1/10W 2.2K R2503 ERJ6GEYG103 M.RESISTOR CH 1/10W 10K R2504 ERJ6GEYG103 M.RESISTOR CH 1/10W 10K R2505 ERJ6GEYG392 M.RESISTOR CH 1/10W 3.9K...
  • Page 44 Ref. No. Part No. Part Name & Description Remarks R4017 ERJ6GEYJ273 M.RESISTOR CH 1/10W 27K R4018 ERJ6GEYG183 M.RESISTOR CH 1/10W 18K R4019 ERJ6GEYF333 M.RESISTOR CH 1/10W 33K R4020 ERJ6GEYJ472V M.RESISTOR CH 1/10W 4.7K R4021 ERJ6GEYG332 M.RESISTOR CH 1/10W 3.3K R4022 ERJ6GEYF561 M.RESISTOR CH 1/10W 560 R4026...
  • Page 45 Ref. No. Part No. Part Name & Description Remarks R4916 ERJ6GEYG331 M.RESISTOR CH 1/10W 330 R4918 ERJ6GEYG331 M.RESISTOR CH 1/10W 330 R4926 ERJ6GEYJ101V M.RESISTOR CH 1/10W 100 R4928 ERJ6GEY0R00V M.RESISTOR CH 1/10W 0 D0GBR00JA017 R4938 ERJ6GEYG221 M.RESISTOR CH 1/10W 220 R4941 ERJ6GEYG103 M.RESISTOR CH 1/10W 10K...
  • Page 46 Ref. No. Part No. Part Name & Description Remarks R7510 ERDS2FJ821 C.RESISTOR 1/4W 820 ERDS2TJ821T R7511 ERDS2FJ821 C.RESISTOR 1/4W 820 ERDS2TJ821T R7513 ERJ6GEYJ303 M.RESISTOR CH 1/10W 30K R7514 ERJ6GEYJ303 M.RESISTOR CH 1/10W 30K R7515 ERJ6GEYJ303 M.RESISTOR CH 1/10W 30K R7516 ERJ6GEYJ303 M.RESISTOR CH 1/10W 30K R7517...
  • Page 47 Ref. No. Part No. Part Name & Description Remarks S7517 EVQ11L07B SWITCH T0701 EQV5EC082P TRANSFORMER T1101 ETS29AZ286AC SWITCHING TRANSFORMER [MAVD] T4002 EQQ7QF024P TRANSFORMER TU7601 ENG47327G1 TUNER [MAVD] VR0701 EVNCYAA03B14 V.RESISTOR 10K X0701 VLF1416 FILTER J0B4045A0002 X0704 VLF1493 FILTER X3001 VSX0162 CRYSTAL OSCILLATOR X6001 VSX1022...
  • Page 48 16V10 16V10 NOTE: DO NOT USE ANY PART NUMBER SHOWN ON THIS SCHEMATIC DIAGRAM FOR NV-FJ623EC/ECN 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. NICAM DECODER PACK SCHEMATIC DIAGRAM...
  • Page 49 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-FJ623EC/ECN PRIMARY SIDE..SECONDARY SIDE... NOTE:DO NOT USE ANY PART NUMBER SHOWN ON THIS SCHEMATIC DIAGRAM FOR IMPORTANT SAFETY NOTICE:...
  • Page 50 C1008 MA4056NH 10V47 MA4056NH 25V47 D1002 D1007 NV-FJ623EC/ECN IMPORTANT SAFETY NOTICE: NOTE:DO NOT USE ANY PART NUMBER SHOWN ON THIS POWER SUPPLY/RF SECTION COMPONENTS IDENTIFIED WITH THE MARK HAVE THE SPECIAL CHARACTERISTICS FOR SAFETY. SCHEMATIC DIAGRAM FOR ORDERING.WHEN YOU SCHEMATIC DIAGRAM WHEN REPLACING ANY OF THESE COMPONENTS,USE ONLY THE SAME TYPE.
  • Page 51 L7703 POWER OFF X6002 R6005 R6004 H0H200- X6001 220K RESET 500011 VSX1022 C7713 6V47 Y/C VIDEO OUT C6012 C6011 C6010 C6009 SAFETY TAB SLEEP SLEEP C6008 C SYNC 1000P BACK UP 5V NV-FJ623EC/ECN SYSTEM CONTROL & SERVO SECTION SCHEMATIC DIAGRAM...
  • Page 52 35V4.7 UNREG 14V L2501 R2509 N.SW 5V NV-FJ623EC/ECN NV-FJ623EC/ECN 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 53 4300 5600 8200 BACK UP 5V NV-FJ623EC/ECN 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 54 4MHz C0711 R0715 16V22 NV-FJ623EC/ECN NOTE:DO NOT USE ANY 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. TV DEMODULATOR PACK SCHEMATIC DIAGRAM...
  • Page 55 BIAS 5V VIDEO 5V A10 A11 NV-FJ623EC/ECN 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 PAL COLOUR SIGNAL.(SP MODE)
  • Page 56 C4007 6V220 1200P R4008 220K L3005 NV-FJ623EC/ECN LUMINANCE & CHROMINANCE/AUDIO NV-FJ623EC/ECN NOTE:DO NOT USE ANY PART NUMBER SHOWN ON THIS SCHEMATIC DIAGRAM FOR SECTION SCHEMATIC DIAGRAM LUMINANCE & CHROMINANCE/AUDIO SECTION SCHEMATIC DIAGRAM ORDERING.WHEN YOU ORDER A PART,PLEASE REFER TO PARTS LIST.
  • Page 57 (VEM0715) CYLINDER STATOR UNIT Integrated Circuit HALL IC Connector M1 VM P2901 ADDRESS INFORMATION HALL IC VM M2 P2901 NV-FJ623EC/ECN CYLINDER STATOR UNIT...
  • Page 58 C7707 W326 S7506 R7507 W738 Q1006 Q1002 R7510 R7508 QR1001 R7606 R1009 R1008 R7521 S7507 R7515 R7511 IC7501 S7505 S7511 W318 R7516 S7514 S7512 S7515 S7504 S7502 S7513 S7501 R7514 S7503 S7516 S7517 W438 IC7502 K1213 DP7501 NV-FJ623EC/ECN MAIN C.B.A.
  • Page 59 QR4001 TW4501 QR4002 TW4502 QR4003 TW4901 QR4005 TW4902 QR4501 TW4903 QR4502 TW4906 QR4503 TW4907 QR4504 TW6002 Connector QR4505 QR4506 P1102 QR4903 P1501 QR4904 P2501 QR4905 P2502 QR6001 P3502 QR6006 P4002 P4003 DU7601 PK7301 PK7302 TU7601 ADDRESS INFORMATION NV-FJ623EC/ECN MAIN C.B.A.
  • Page 60 NICAM DECODER PACK C.B.A. Integrated Circuit IC7301 IC7302 Test Point TL7301 TL7303 TL7304 Integrated Circuit PK7301 PK7302 ADDRESS INFORMATION (VEP07A18R) IC7301 TL7304 TL7303 TL7301 PK7302 PK7301 NV-FJ623EC/ECN NICAM DECODER PACK C.B.A.
  • Page 61 TV DEMODULATOR PACK C.B.A. Transistor Q0702 Integrated Circuit IC0701 Adjustment T0701 VR0701 Connector PK0701 PP0701 ADDRESS INFORMATION (VEP07A23S) IC0701 PK0701 Q0702 NV-FJ623EC/ECN TV DEMODURATOR PACK C.B.A.
  • Page 62 T1101-3 STOP T1101-7 STOP IC1101-1 STOP IC1101-2 STOP IC1101-4 STOP 9.0Vp-p (2msec. div.) 100Vp-p (5µsec. div.) 470Vp-p (5µsec. div.) 8.0Vp-p (10µsec. div.) 0.5Vp-p (10µsec.div.) IC1101-5 STOP IC6001-20 PAUSE IC6001-21 REC IC6001-24 REC IC6001-61 REC 0.6Vp-p (10µsec.div.) 5.0Vp-p (10msec.div.) 5.0Vp-p (10msec.div.) 5.0Vp-p (10msec.div.) 2.4Vp-p (20µsec.div.) IC6001-68 REC...
  • Page 63 SYSTEM CONTROL & SERVO ICs DC VOLTAGE CHART (SP MODE) IC1501 IC1502 Ref. No. MODE STOP PLAY IC2501 Ref. No. MODE STOP 16.8 16.8 16.8 16.8 PLAY 14.9 14.9 15.2 14.9 15.1 15.1 15.4 15.1 14.4 14.4 14.6 14.7 14.3 14.3 14.6 14.9...
  • Page 64 No. Port Name Description P-OFF P-Save P-FAIL Reset CURRENT_LIMIT O Capstan motor current limit terminal. F ADJUST O Analogue voltage output for HEAD frequency response adjustment N.C. -- Low fix (No Connection.) Terminal of the Current emphasis video/FM audio recording current. [HIFI/2HEAD ]:Fix to Low (Normal mode) C EMPHA(H) [4HEAD]...
  • Page 65 No. Port Name Description P-OFF P-FAIL Reset P-Save ROTARY.SW O Output terminal for rotary switch. H.A.SW O Output terminal for HEAD AMP switch. ENVE.SELECT I Input terminal for enverope selection. VIDEO.H.SW O Output terminal for video HEAD switch. A.H.SW O Output terminal for FM audio HEAD switch. Audio Mute output terminal for tuner and decoder.
  • Page 66 No. Port Name Description P-OFF P-FAIL Reset P-Save LC.OSC OUT O The oscillation output terminal for OSD dot clock. RESET(L) I Input terminal for microprocessor reset. 4FC.LPF I 4fc clock input terminal OSD.FSC IN I OSD clock input terminal 5V(OSD) I 5V input terminal CVIN I Input terminal for Composite video signal.
  • Page 67 No. Port Name Description P-OFF P-FAIL Reset P-Save FLD/T2 DATA OUT O Serial data output terminal for FIP driver and TEST_2(Factory use). Not fix Low FLD_CS O Chip select terminal for FIP driver. Not fix Low T.REEL.PULSE I Input terminal for Take-up Reel sensor pulse. S.REEL.PULSE I Input terminal for Supply Reel sensor pulse.
  • Page 68 INPUT CONDITION VIDEO OUTPUT RESULT AUDIO OUTPUT RESULT POWER INPUT RF (C) AV1 Out AV2 Out SELECT ON(H) PB(H) PB(H) PB(H) Selector Selector AV2 In AV1 In AV2 In AV1 In Mute AV2 In AV1 In AV2 In AV1 In AV2 In AV1 In Mute...
  • Page 69 INPUT CONDITION VIDEO OUTPUT RESULT AUDIO OUTPUT RESULT POWER INPUT RF (C) AV1 Out AV2 Out SELECT ON(H) PB(H) PB(H) PB(H) Selector Selector P.ON NO.TU VCR out VCR out INSEL C+.TU VCR out VCR out INSEL VCR out VCR out AV1 In AV1 In AV1 In...
  • Page 70 INPUT CONDITION VIDEO OUTPUT RESULT AUDIO OUTPUT RESULT POWER INPUT RF (C) AV1 Out AV2 Out SELECT ON(H) PB(H) PB(H) PB(H) Selector Selector P.ON DECODER VTR NO.TU VCR out AV1 In AV1 In AV1 In VCR out AV1 In AV1 In AV1 In C+.TU VCR out TUN IN...
  • Page 71 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 72 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 73 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 74 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 75 8 SCHEMATIC DIAGRAMS 8.1. POWER TRANSFORMER SECTION IN MAIN SCHEMATIC DIAGRAM THE STRIPED FRAME INDICATES THE PRIMARY CIRCUIT TO DISTINGUISH THE PRIMARY CAUTION FROM THE SECONDARY CIRCUIT. PAY ATTENTION NOT TO RECEIVE AN ELECTRIC SHOCK DURING REPAIR AND SERVICE OF THE PRODUCTS.
  • Page 76 R1205 0.01 2200 HE POWER TRANSFORMER NT AS FOLLOWS. NV-FJ623EC/ECN NOTE:DO NOT USE ANY PART NUMBER SHOWN ON THIS SCHEMATIC DIAGRAM FOR POWER TRANSFORMER OWN THE VOLTAGE WHEN ORDERING.WHEN YOU ORDER A PART,PLEASE REFER TO PARTS LIST. SECTION SCHEMATIC DIAGRAM...
  • Page 77 8.2. POWER SUPPLY/ RF SECTION IN MAIN SCHEMATIC DIAGRAM VIDEO MAIN SIGNAL PATH IN REC MODE AUDIO MAIN SIGNAL PATH IN REC MODE VIDEO MAIN SIGNAL PATH IN PLAYBACK MODE AUDIO MAIN SIGNAL PATH IN PLAYBACK :TO POWER TRANSFORMER SECTION :TO SYSTEM CONTROL &...
  • Page 78 2200P PK7302 SYS IIC CLOCK SYS IIC DATA TUNER AUDIO (R) TUNER AUDIO (L) NV-FJ623EC/ECN NOTE:DO NOT USE ANY PART NUMBER SHOWN ON THIS POWER SUPPLY/RF SECTION SCHEMATIC DIAGRAM FOR ORDERING.WHEN YOU SCHEMATIC DIAGRAM GRAM IS STOP MODE. ORDER A PART,PLEASE REFER TO PARTS LIST.
  • Page 79 8.3. TIMER SECTION IN MAIN SCHEMATIC DIAGRAM :TO POWER TRANSFORMER SECTION DP7501 A2BD00000040 :TO POWER SUPPLY/RF SECTION :TO SYSTEM CONTROL & SERVO SECTION S-VHS Link R7507 R7508 HEATER (+) C7501 0.01 HEATER DC (-) D7501 C7502 R7511 R7510 MA4220NM 50V10 FIP -29V R7509 IC7501...
  • Page 80 LINK TIMER EJECT S7516 S7505 S7517 EVQ11G07K EVQ11L07B EVQ11L07B R7519 R7536 R7539 4300 5600 8200 NV-FJ623EC/ECN OTE:DO NOT USE PART NUMBER SHOWN ON THIS SCHEMATIC DIAGRAM FOR ORDERING.WHEN YOU ORDER A PART,PLEASE REFER TO PARTS LIST. TIMER SECTION SCHEMATIC DIAGRAM...
  • Page 81 8.4. SYSTEM CONTROL & SERVO SECTION IN MAIN SCHEMATIC DIAGRAM CAPSTAN SERVO SPEED LOOP CAPSTAN SERVO PHASE LOOP :TO POWER SUPPLY/RF SECTION V :TO LUMINANCE & CHROMINANCE/AUDIO SECTION A :TO Hi-Fi AUDIO SECTION :TO INPUT/OUTPUT SECTION T :TO TIMER SECTION R2508 C6017 680P...
  • Page 82 R7733 100 CV OUT R6008 2200 R6016 R6009 22K 20Hz START C7712 C7711 R7729 QR6006 R7731 220P UN2211 (SLEEP :OFF) R7730 L7703 R6004 X6001 220K VSX1022 C7713 6V47 C6010 C6009 C6008 1000P NV-FJ623EC/ECN SYSTEM CONTROL & SERVO SECTION SCHEMATIC DIAGRAM...
  • Page 83 C2516 C2524 35V4.7 35V4.7 35V4.7 UNREG 14V L2501 R2509 N.SW 5V NV-FJ623EC/ECN NOTE:DO NOT USE ANY PART NUMBER SHOWN ON THIS SCHEMATIC DIAGRAM FO ORDERING.WHEN YOU ORDER A PART,PLEASE REFER TO PARTS LIST. SYSTEM CONTROL & SERVO SECTION SCHEMATIC DIAGRAM...
  • Page 84 VIDEO OUT P2502 1 M1 2 HE- 3 VM 4 VM 5 GND (CYL) 6 HE+ 7 M3 8 VH+ 9 M2 UNREG 14V N.SW 5V NV-FJ623EC/ECN SYSTEM CONTROL & SERVO SCHEMATIC DIAGRAM FOR FER TO PARTS LIST. SECTION SCHEMATIC DIAGRAM...
  • Page 85 8.5. LUMINANCE & CHROMINANCE/ AUDIO SECTION IN MAIN SCHEMATIC DIAGRA :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 Hi-Fi AUDIO SECTION :TO INPUT/OUTPUT SECTION IC35 TW2001 T4002...
  • Page 86 2200P QR4005 UN2113 -0.4 (BUFFER) (-0.1) R4022 R4011 C4010 0.027 QR4001 QR4002 UN2212 UN2211 (PAL EP :ON) (PAL EP :ON) C4001 C4009 2200P A10 A11 NV-FJ623EC/ECN HE BRACKETS ON THIS DIAGRAM IS PLAYBACK MODE LUMINANCE & CHROMINANCE/AUDIO SECTION SCHEMATIC DIAGRAM...
  • Page 87 C4004 8200P 2700P 10V22 R3012 C3015 4700 0.01 C4011 R4005 0.015 R4007 C3018 C3017 C4007 6V220 1200P R4008 220K L3005 NV-FJ623EC/ECN NOTE:DO NOT USE ANY PART NUMBER SHOWN ON ORDERING.WHEN YOU ORDER A PART,PLEA LUMINANCE & CHROMINANCE/AUDIO SECTION SCHEMATIC DIAGRAM...
  • Page 88 ROTARY SW C3008 0.01 R3002 R3006 C3009 C3004 C3021 R3017 50V1 0.01 1200 FREQ. ADJ C3020 50V1 NV-FJ623EC/ECN LUMINANCE & CHROMINANCE/AUDIO ART NUMBER SHOWN ON THIS SCHEMATIC DIAGRAM FOR SECTION SCHEMATIC DIAGRAM YOU ORDER A PART,PLEASE REFER TO PARTS LIST.
  • Page 89 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 P :TO SYSTEM CONTROL & SERVO SECTION :TO LUMINANCE & CHROMINANCE/AUDIO SECTION :TO INPUT/OUTPUT SECTION R4537 C4528 R4524 16V10...
  • Page 90 R4515 4700 C4504 0.047 C4514 0.01 C4505 10V33 NOTE:DO NOT USE ANY PART NUMBER SHOWN ON THIS NV-FJ623EC/ECN HIS 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 91 8.7. INPUT/ OUTPUT SECTION IN MAIN SCHEMATIC DIAGRAM VIDEO MAIN SIGNAL PATH IN REC MODE VIDEO MAIN SIGNAL PATH IN PLAYBACK MODE :TO POWER SUPPLY/RF SECTION :TO SYSTEM CONTROL & SERVO SECTION :TO LUMINANCE & CHROMINANCE/AUDIO SECTION L4903 :TO Hi-Fi AUDIO SECTION C4925 C4926 6V220...
  • Page 92 (PROG :ON) QR4904 UN2215 (PROG :ON) NV-FJ623EC/ECN INPUT/OUTPUT SECTION BRACKETS ON THIS DIAGRAM IS PLAYBACK MODE 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 93 8.8. TV DEMODULATOR PACK SCHEMATIC DIAGRAM VIDEO SIGNAL PATH AUDIO SIGNAL PATH R0713 C0724 220P R0742 Q0702 2SD601A (AMP) PK0701 DU7601-19 DU7601-20 R0741 DU7601-21 C0721 DU7601-22 SIF/QPSK 120P DU7601-23 AFC S-CURVE DU7601-24 TUNER VIDEO DU7601-25 TUNER 5V R0743 DU7601-26 IC0701 DU7601-27 LA75503 S PL...
  • Page 94 C0704 0.033 R0705 R0708 C0714 4700 C0702 C0703 1000P R0719 C0712 4700 X0704 VLF1493 C0710 0.01 L0703 R0725 2.2u C0715 C0711 R0715 16V22 NV-FJ623EC/ECN WN ON THIS SCHEMATIC DIAGRAM FOR TV DEMODULATOR PACK SCHEMATIC DIAGRAM PLEASE REFER TO PARTS LIST.
  • Page 95 8.9. NICAM DECODER PACK SCHEMATIC DIAGRAM L7302 SIF2 C7315 INPUT SWIT VREF1 AGC, C7307 R7302 C7311 PK7301 0.01 SIF1 QPSK/SIF TUNER AUDIO (N) IC7302 CRESET PST7043 TUNER 5V (RESET) IDENT VSSA3 CATIO VDDA3 C7343 L7301 2200P C7308 C7312 R7305 50V2.2 IIC BUS INTERF PK7302...
  • Page 96 R7324 R7328 R7329 C7313 TL7301 C7317 C7319 C7320 16V10 16V10 16V10 E: DO NOT USE ANY PART NUMBER SHOWN ON THIS SCHEMATIC DIAGRAM FOR NV-FJ623EC/ECN ORDERING. WHEN YOU ORDER A PART,PLEASE REFER TO PARTS LIST. NICAM DECODER PACK SCHEMATIC DIAGRAM...
  • Page 97 MAIN COIL 3 HALL IC GND (CYL) MAIN COIL 1 NV-FJ623EC/ECN NOTE:DO NOT USE ANY PART NUMBER SHOWN ON THIS SCHEMATIC DIAGRAM FOR ORDERING.WHEN YOU ORDER A PART,PLEASE REFER TO PARTS LIST. CYLINDER STATOR SCHEMATIC DIAGRAM 8.11. CAPSTAN UNIT SCHEMATIC DIAGRAM...
  • Page 98 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-FJ623EC/ECN CAPSTAN UNIT SCHEMATIC DIAGRAM...
  • Page 99 TUNER AUDIO (L) PREAMP & SWITCH P3502 Hi-Fi P3502 IC3001 AUDIO HEAD P3502 GAIN FROM DECODER/ TUNER AUDIO (N) TV DEMODU FM MODULATOR/ DEMODULATOR A.HEAD (W) NORMAL SELECT SWITCH TO/FROM AC HEAD & SWITCH A.HEAD (R) NV-FJ623EC/ECN AUDIO BLOCK DIAGRAM...
  • Page 100 PLAY PAUSE CH UP Q1501 D1501 Q1502 S7507 S7512 S7511 S7503 S7504 TAKE UP SENSOR SUPPLY SAFETY T-REEL PULSE PHOTO PHOTO TAB SW SENSOR SENSOR P4003 CTL HEAD(-) HEAD P4003 112 CTL HEAD(+) NV-FJ623EC/ECN SYSTEM CONTROL & SERVO BLOCK DIAGRAM...
  • Page 101 BLANKING VIDEO OUT VIDEO IN CLAMP Q4901 QR4903 FROM SYSTEM AV1 PB CONTROL SYS IIC CLOCK TO/FROM SYSTEM CONTROL SYS IIC DATA OSD IIC DATA TO/FROM IIC BUS SYSTEM INTERFACE CONTROL OSD IIC CLOCK NV-FJ623EC/ECN LUMINANCE & CHROMINANCE BLOCK DIAGRAM...
  • Page 102 FAMI MODE:When setting the NTSC CONVERTER to ON on the OSD Screen Display, the signals from NTSC Signal Source (ex.NTSC GAME Machine)connected to the VCR can be appeared on the PAL TV.However when recording, X3001 it is not recorded correctly. NV-FJ623EC/ECN NV-FJ623EC/ECN LUMINANCE & CHROMINANCE BLOCK DIAGRAM LUMINANCE & CHROMINANCE BLOCK DIAGRAM...
  • Page 103 L0201 R0208 UNLOADING C0208 HOLE LOADING SENSOR R0204 C0209 C0210 ED/S TORQUE DIRECTION OUT2 CAPSTAN MOTOR DRIVER MAIN COIL HALL POWER R0209 OUT1 EC AMP HOLE SENSOR TL0205 DRIVER CONTROL LOGIC R0201 R0211 C0206 C0207 NV-FJ623EC/ECN CAPSTAN UNIT SCHEMATIC DIAGRAM...
  • Page 104 P2901 MAIN COIL 2 MAIN COIL 3 HALL IC GND (CYL) MAIN COIL 1 NV-FJ623EC/ECN NOTE:DO NOT USE ANY PART NUMBER SHOWN ON THIS SCHEMATIC DIAGRAM FOR ORDERING.WHEN YOU ORDER A PART,PLEASE REFER TO PARTS LIST. CYLINDER STATOR SCHEMATIC DIAGRAM...
  • Page 105 A.HEAD SW ABS NORMAL D.FM REC NV-FJ623EC/ECN 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 106 UN2215 (PROG :ON) GND (A) NV-FJ623EC/ECN 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...

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