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Procedures for Mechanism Chassis are separate volume from this service manual./Please refer to the service manual for Z-Mechanism Chassis. (Order No. VRD9802005C2) 2. The Model No. is indicated on the Schematic Diagram and Circuit Board Diagrams as follows. Model No. Indication Mark NV-FJ623EG (EG) NV-FJ623EGY (EGY) NV-FJ628EE (EE)
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2.1.1 REPLACING IC7702/EEPROM When the EEPROM: IC7702 is replaced, applicable model code, option code and electrical adjustment data will not be available. Therefore, enter and/or adjust the necessary data after replacing IC7702 by referring following procedure. STEP1.REPLACE THE IC7702 1. Remove the C.B.A. with Mechanism unit by referring the Disassembly procedure. 2.
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Model No. Model Option Code 1 Option Code 2 Option Code 3 Code NV-FJ623EG/EGY (41h) (7Dh) (C4h) (6h) NV-FJ628EE (46h) (79h) (C4h) (6h) 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. Disassembly Procedure”. B. Remove the 3 screws (A) of the CYLINDER UNIT with a screw driver. C. Unlock the 4 locking tabs (B) and disconnect the Cylinder flexible card from the FPC Holder. D.
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3. UPPER CYLINDER ASSEMBLY When reassembling, perform the steps in the reverse order. Notes: A. Install the Cylinder Retainer so that the 2 holes on top of the Cylinder Retainer are at right angles with the P3502 Connection. B. Tighten the Hex screw (C) (1.5 mm) while pressing down on top of the Cylinder Retainer. Fig.
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C. 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. D. Tighten 2 screws (B). Fig. S6 E. install the Cylinder Stator Unit. F.
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. S8 2.1.4 FLAT CARD CABLE INSTALLATION When installing the Flat Card Cable on the connector, install the Flat Card Cable with the cable contacts facing the connector contacts.
2.2 REMOVAL OF CASSETTE TAPE There are 2 ways to remove a cassette tape. 1. Service Information Display Operation A. Press the FF and EJECT keys simultaneously for 3 seconds and set the Service Mode 7. B. Press STOP key in order to rotate the Loading Motor for unloading operation. (Pay an attention of tape slack) 2.
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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] 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.
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)” with Service Mode 2. Since the "Error code"...
3.1.1 DISASSEMBLY FLOW CHART This flow chart indicates disassembly steps of the cabinet parts and the circuit boards in order to find the necessary items for servicing. When reassembling, perform the steps in the reverse order. Fig. D1...
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 3. REMOVAL OF THE MECHANISM UNIT Remove Screw (C) Remove 3 Screws (D) Remove 2 Screws (E) Note: A.
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4. REMOVAL OF THE MAIN C.B.A. 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.
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. Frequency Counter Frequency Range: 0-10MHz ¡ Probes: 1:1 ¡ 3. Universal Counter 4.
3.3.3 ADJUSTMENTS Fig.E1 Fig.E2 CONDITION: BURST SIGNAL OFF / 75 ohm TERMINATED 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. Press the EJECT key for 3 seconds. Press the CH UP key once.
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3.3.5 AI FUNCTION ADJUSTMENT (AUTOMATIC) 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.
3.3.7 LOCATION OF TEST POINTS& CONTROLS 3.3.8 CIRCUIT BOARD LAYOUT...
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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.
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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.
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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.
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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.
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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]...
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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.
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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.
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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.
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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...
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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...
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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...
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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...
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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-FJ623EG/EGY,FJ628EE SYSTEM CONTROL & SERVO BLOCK DIAGRAM...
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FAMI MODE:When setting the NTSC CONVERTER to ON on the OSD Screen Display, SYSTEM AV PB the signals from NTSC Signal Source (ex.NTSC GAME Machine)connected CONTROL to the VCR can be appeared on the PAL TV.However when recording, X3001 it is not recorded correctly. NV-FJ623EG/EGY,FJ628EE LUMINANCE & CHROMINANCE BLOCK DIAGRAM...
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& SWITCH P3502 Hi-Fi (EE) P3502 IC3001 AUDIO HEAD P3502 GAIN QR7601 FROM DECODER/ TUNER AUDIO (N) MUTE TV DEMODU (EG/EGY) FM MODULATOR/ DEMODULATOR A.HEAD (W) NORMAL SELECT SWITCH TO/FROM AC HEAD & SWITCH A.HEAD (R) NV-FJ623EG/EGY,FJ628EE AUDIO BLOCK DIAGRAM...
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2200 NOTE1:WHEN MEASURE THE VOLTAGE OR WAVEFORM ON THE POWER TRANSFORMER CIRCUIT,SET THE GND TERMINAL OF MEASURING POINT AS FOLLOWS. PRIMARY SIDE..NV-FJ623EG/EGY,FJ628EE SECONDARY SIDE... NOTE:DO NOT USE ANY PART NUMBER SHOWN ON THIS SCHEMATIC DIAGRAM FOR IMPORTANT SAFETY NOTICE:...
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C7627 0.01 QR7601 UN2215 D1002 D1007 (MUTE) NV-FJ623EG/EGY,FJ628EE 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 NOTE:THE MEASUREMENT MODE OF THE DC VOLTAGE ON THIS DIAGRAM IS STOP MODE.
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4300 5600 8200 BACK UP 5V NV-FJ623EG/EGY,FJ628EE 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.
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R6005 R6004 H0H200- X6001 220K RESET 500011 VSX1022 C7713 6V47 Y/C VIDEO OUT C6012 C6011 C6010 C6009 SAFETY TAB SLEEP C6008 C SYNC 1000P BACK UP 5V B14 B15 B16 B19 B20 NV-FJ623EG/EGY,FJ628EE SYSTEM CONTROL & SERVO SECTION SCHEMATIC DIAGRAM...
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35V4.7 UNREG 14V L2501 R2509 N.SW 5V NV-FJ623EG/EGY,FJ628EE NV-FJ623EG/EGY,FJ628EE 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...
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PAL EP BIAS 5V VIDEO 5V NV-FJ623EG/EGY,FJ628EE 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 LUMINANCE &...
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C4007 6V220 1200P R4008 220K L3005 NV-FJ623EG/EGY,FJ628EE LUMINANCE & CHROMINANCE/AUDIO NV-FJ623EG/EGY,FJ628EE 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.
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D.FM REC NOTE:DO NOT USE ANY PART NUMBER SHOWN ON THIS NV-FJ623EG/EGY,FJ628EE 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...
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THIS DIAGRAM IS RECORD MODE WITH PAL COLOUR.(SP MODE) THE MEASUREMENT MODE OF THE DC VOLTAGE OUT THE BRACKETS( )ON THIS DIAGRAM IS RECORD MODE WITH PAL COLOUR SIGNAL.(SP MODE) NV-FJ623EG/EGY,FJ628EE NOTE:DO NOT USE ANY PART NUMBER SHOWN ON THIS SCHEMATIC DIAGRAM FOR INPUT/OUTPUT SECTION ORDERING.WHEN YOU ORDER A PART,PLEASE REFER TO PARTS LIST.
4MHz C0711 R0715 16V22 NV-FJ623EG/EGY,FJ628EE NOTE:DO NOT USE ANY PART NUMBER SHOWN ON THIS SCHEMATIC DIAGRAM FOR TV DEMODULATOR PACK SCHEMATIC DIAGRAM 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.
0.012 0.012 NOTE: DO NOT USE ANY PART NUMBER SHOWN ON THIS SCHEMATIC DIAGRAM FOR NV-FJ623EG/EGY 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 PACK SCHEMATIC DIAGRAM...
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P2901 MAIN COIL 2 MAIN COIL 3 HALL IC GND (CYL) MAIN COIL 1 NOTE:DO NOT USE ANY PART NUMBER SHOWN ON THIS SCHEMATIC DIAGRAM FOR NV-FJ623EG/EGY,FJ628EE ORDERING.WHEN YOU ORDER A PART,PLEASE REFER TO PARTS LIST. CYLINDER STATOR SCHEMATIC DIAGRAM...
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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-FJ623EG/EGY,FJ628EE CAPSTAN UNIT SCHEMATIC DIAGRAM...
(VEM0715) CYLINDER STATOR UNIT Integrated Circuit HALL IC Connector M1 VM P2901 ADDRESS INFORMATION HALL IC VM M2 P2901 NV-FJ623EG/EGY,FJ628EE CYLINDER STATOR UNIT...
11.1 CHASSIS PARTS SECTION PARTS LIST 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...
11.2 CASING PARTS SECTION PARTS LIST Ref. No. Part No. Part Name & Description Remarks VGM1834 TOP PANEL [MAVD] VYP8350 FRONT PANEL UNIT [MAVD] NV-FJ623EG-S VYP8406 FRONT PANEL UNIT [MAVD] NV-FJ623EGYS VYP8360 FRONT PANEL UNIT [MAVD] NV-FJ628EE-S RKA0072-K FOOT RKA0072-K...
11.4 ELECTRICAL PARTS LIST Ref. No. Part No. Part Name & Description Remarks VEP06E55M MAIN C.B.A. (RTL)[MAVD] *1 THE FOLLOWING C.B.A.S ARE INCLUDED IN MAIN C.B.A. VEP07A16A,VEP07A23S VEP06E55Q MAIN C.B.A. (RTL)[MAVD] *2 THE FOLLOWING C.B.A.S ARE INCLUDED IN MAIN C.B.A. VEP07A18T,VEP07A23U VEP07A16A DECODER PACK C.B.A.