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Video Cassette VHR-VT821A Recorder (Product Code: 1 682 333 57) (Australia) VHR-VT821A / NZ (Product Code: 1 682 333 58) (New Zealand) PRODUCT SAFETY NOTICE The components designated by a symbol ( ) in this schematic diagram designates components whose value are of special significance to product safety.
SERVICING NOTICES ON CHECKING 1. KEEP THE NOTICES 3. PUT PARTS AND WIRES IN THE ORIGINAL POSITION AFTER As for the places which need special attentions, ASSEMBLING OR WIRING they are indicated with the labels or seals on the cabinet, chassis and parts. Make sure to keep the There are parts which use the insulation indications and notices in the operation manual.
TABLE OF CONTENTS SERVICING NOTICES ON CHECKING ..................HOW TO ORDER PARTS ......................TAPE REMOVAL METHOD AT NO POWER SUPPLY ............TABLE OF CONTENTS ......................GENERAL SPECIFICATIONS ....................DISASSEMBLY INSTRUCTIONS 1. REMOVAL OF MECHANICAL PARTS AND P. C. BOARDS ..........2.
GENERAL SPECIFICATIONS System VHS Player / Recorder System Video System Hi-Fi STEREO NTSC PB(PAL60Hz) Deck DECK OVD-7 Loading System Front Motor Heads Video Head 4Head FM Audio Head 2Head Audio /Control Mono/Yes Erase(Full Track Erase) Tape SP/LP Speed NTSC Play SP/LP NTSC Fast Forward / Rewind Time (Approx.)
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GENERAL SPECIFICATIONS On Screen Menu Display Menu Type Character Timer Rec Set VCR Extension Auto Repeat On/Off Scene Repeat Audio Dubbing VCR Set-Up NICAM Auto/Off Audio Mix On/Off Color System Sharpness BBE On/Off CH Set-Up CH Tuning Auto Tuning CH Mapping Guide CH Set Pin Code Registration System Set-Up...
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GENERAL SPECIFICATIONS G-12 Remote Unit RC-ED Control Glow in Dark Remocon Power Source Voltage(D.C) UM size x pcs UM-4 x 2 pcs Total Keys 32 Keys Keys Power 0 / AV CH / Tracking Up CH / Tracking Down Input Select Play Play / Up Play / Up / Slow...
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GENERAL SPECIFICATIONS G-14 Accessories Owner's Manual Language English w/Guarantee Card Remote Control Unit Dew Cation Sheet Battery UM size x pcs UM-4 x 2 pcs Tape Rewinder Safety Tip Toll Free Insert Sheet Quick Set-Up Sheet Information Sheet 75 Ohm Coaxial Cable type Single shield U/V Mixer...
DISASSEMBLY INSTRUCTIONS 1-3: DECK CHASSIS (Refer to Fig. 1-3) 1. REMOVAL OF MECHANICAL PARTS Remove the 3 screws 1. AND P.C. BOARDS Disconnect the 6P ribbon wire (CD1002) from Audio 1-1: TOP CABINET, FRONT CABINET AND head (H5001). OPERATION PCB (Refer to Fig. 1-1) Remove the Deck Chassis in the direction of arrow.
DISASSEMBLY INSTRUCTIONS 2. REMOVAL OF DECK PARTS NOTE In case of the Locker R installation, check if the two 2-1: TOP BRACKET (Refer to Fig. 2-1) positions of Fig.2-3-B are correctly locked. Extend the 2 supports 1. When you install the Cassette Side R, be sure to move Slide the 2 supports 2 and remove the Top Bracket.
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DISASSEMBLY INSTRUCTIONS 2-6: LOADING MOTOR/WORM (Refer to Fig. 2-6-A) Tension Arm Ass'y Remove the screw 1. Remove the Loading Motor. Remove the Worm. Fig. 2-7-A Loading Motor Worm Tension Connect Tension Band Main Chassis Tension Spring Tension Arm Ass'y Tension Holder •...
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DISASSEMBLY INSTRUCTIONS 2-8: T BRAKE ARM/T BRAKE BAND (Refer to Fig. 2-8-A) Remove the T Brake Spring. Idler Gear Turn the T Brake Arm clockwise and bend the hook Idler Arm Ass'y section to remove it. Unlock the 2 supports 1 and remove the T Brake S Reel Band.
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DISASSEMBLY INSTRUCTIONS 2-10: CASSETTE OPENER/PINCH ROLLER BLOCK/ P5 ARM ASS'Y (Refer to Fig. 2-10-A) Unlock the support 1 and remove the Cassette Opener. Remove the Pinch Roller Block and P5 Arm Ass'y. Cassette Opener Spring Position Fig. 2-11-B 2-12: FE HEAD (RECORDER ONLY) (Refer to Fig. 2-12) Pinch Roller Block Remove the screw 1.
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DISASSEMBLY INSTRUCTIONS 2-14: CAPSTAN DD UNIT (Refer to Fig. 2-14-A) 2-15: MAIN CAM/PINCH ROLLER CAM/JOINT GEAR (Refer to Fig. 2-15-A) Remove the Capstan Belt. Remove the 3 screws 1. Remove the E-Ring 1, then remove the Main Cam. Remove the E-Ring 2, then remove the Pinch Roller Remove the Capstan DD Unit.
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DISASSEMBLY INSTRUCTIONS NOTE 2-18: CASSETTE GUIDE POST/INCLINED BASE S/T UNIT/P4 CAP (Refer to Fig. 2-18-A) 1. When you install the Loading Arm S Unit, Loading Arm T Unit and Main Loading Gear, align each marker. Remove the P4 Cap. Unlock the support 1 and remove the Cassette Guide (Refer to Fig.
DISASSEMBLY INSTRUCTIONS REMOVAL AND INSTALLATION OF When IC starts moving back and forth easily after desoldering completely, pickup the corner of the IC using FLAT PACKAGE IC a tweezers and remove the IC by moving with the IC desoldering machine. (Refer to Fig. 3-3.) REMOVAL NOTE Put the Masking Tape (cotton tape) around the Flat...
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DISASSEMBLY INSTRUCTIONS INSTALLATION When bridge-soldering between terminals and/or the soldering amount are not enough, resolder using a Thin- Take care of the polarity of new IC and then install the tip Soldering Iron. (Refer to Fig. 3-8.) new IC fitting on the printed circuit pattern. Then solder each lead on the diagonal positions of IC temporarily.
KEY TO ABBREVIATIONS Audio/Control H.SW Head Switch Automatic Color Control Hertz Audio Erase Integrated Circuit Automatic Frequency Control Intermediate Frequency Automatic Fine Tuning Indicator AFT DET Automatic Fine Tuning Detect Inverter Automatic Gain Control Killer Amplifier Left Antenna Light Emitting Diode A.PB Audio Playback LIMIT AMP...
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KEY TO ABBREVIATIONS SYNC Synchronization SYNC SEP Sync Separator, Separation Transistor TRAC Tracking TRICK PB Trick Playback Test Point UNREG Unregulated Volt Voltage Controlled Oscillator Video Intermediate Frequency Vertical Pulse, Voltage Display V.PB Video Playback Variable Resistor V.REC Video Recording Visual Search Fast Forward Visual Search Rewind Voltage Super Source...
ERROR CODE LIST If the error indications are appeared on the FIP, check the abnormal points by using the table below. Indications Error contents Reel mecha error Error : 01 Error : 02 Cylinder mecha error Error : 03 Mecha state error Error : 04 Capstan mecha error SERVICE MODE LIST...
PREVENTIVE CHECKS AND SERVICE INTERVALS The following standard table depends on environmental conditions and usage. Parts replacing time does not mean the life span for individual parts. Also, long term storage or misuse may cause transformation and aging of rubber parts. The following list means standard hours, so the checking hours depends on the conditions.
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PREVENTIVE CHECKS AND SERVICE INTERVALS CLEANING NOTE 2. TAPE RUNNING SYSTEM After cleaning the heads with isopropyl alcohol, do not When cleaning the tape transport system, use the run a tape until the heads dry completely. If the heads gauze moistened with isopropyl alcohol. are not completely dry and alcohol gets on the tape, 3.
WHEN REPLACING EEPROM (MEMORY) IC If a service repair is undertaken where it has been required to change the MEMORY IC, the following steps should be taken to ensure correct data settings while making reference to TABLE 1. Table 1 Turn on the POWER.
MECHANICAL ADJUSTMENTS 1. CONFIRMATION AND ADJUSTMENT 1-2: CONFIRMATION AND ADJUSTMENT OF TENSION POST POSITION Read the following NOTES before starting work. Set to the PLAY mode. • Place an object which weighs between 450g~500g on Adjust the adjusting section for the Tension Arm the Cassette Tape to keep it steady when you want to position so that the Tension Arm top is within the make the tape run without the Cassette Holder.
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MECHANICAL ADJUSTMENTS 1-4: CONFIRMATION OF VSR TORQUE NOTE Install the Torque Gauge (JG002F) and Adapter (JG002B) If the torque is out of the range, replace the following on the S Reel. Set to the Picture Search (Rewind) mode. parts. (Refer to Fig.1-4-B) Replacement Part Check item Then, confirm that it indicates 120~180gf•cm.
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MECHANICAL ADJUSTMENTS 2-2: CONFIRMATION AND ADJUSTMENT OF AUDIO/ 2-3: TAPE RUNNING ADJUSTMENT CONTROL HEAD (X VALUE ADJUSTMENT) When the Tape Running Mechanism does not work well, Confirm and adjust the height of the Reel Disk. adjust the following items. (Refer to item 1-1) Confirm and adjust the position of the Tension Post.
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MECHANICAL ADJUSTMENTS 3. MECHANISM ADJUSTMENT PARTS LOCATION GUIDE 1. Tension Connect P4 Post 2. Tension Arm T Brake Spring 3. Guide Roller T Reel 4. Audio/Control Head S Reel 5. X value adjustment driver hole Adjusting section for the Tension Arm position...
ELECTRICAL ADJUSTMENTS Read and perform this adjustment when repairing the 1-2: PB-Y LEVEL circuits or replacing electrical parts or PCB assemblies. CONDITIONS 1. BASIC ADJUSTMENT MODE-PLAYBACK Input Signal-Alignment Tape (JG001F) CAUTION INSTRUCTIONS When you exchange IC and Transistor for a heat sink, apply the silicon grease (YG6260M) on the contact Connect the oscilloscope to pin 5 of CP4503 through 75 section of the heat sink.
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ELECTRICAL ADJUSTMENTS 1-5: PB AUDIO LEVEL CONDITIONS MODE-Self (RECORD and PLAYBACK) Audio Signal: 1KHz, 500mVrms Input Signal- Video Signal: PAL Color Bar Input Select-AV INSTRUCTIONS Connect the color bar generator to pin 9 of CP4503. Connect the audio generator to pin 7 of CP4503 and pin 11 of CP4503.
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ELECTRICAL ADJUSTMENTS 2. ELECTRICAL ADJUSTMENT PARTS LOCATION GUIDE (WIRING CONNECTION) AUDIO PCB J4503 CP4501 TP4001 AC IN CP4002 TP4002 S501 S502 CP4503 A/C HEAD TP1001 T501 J4507 J4506 J4505 CP651 SYSCON PCB OPERATION PCB CP601...
SYSTEM CONTROL/SERVO/TIMER BLOCK DIAGRAM P. CON + 5V REEL SENS Q1003 SYSCON/SOFTWARE/SERVO IC IC1001 OEC7070B REEL SENS Q1001 REEL-S REEL-T REMOCON REMOCON XC IN X1002 KEY-A OPERATION KEY-A IC1003 32.768KHz XC OUT PST3231NR CH. UP_SW KEY-B SYSTEM 43 RESET EEP ROM IC IIC-SDA RESET IC IC1099...
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TUNER/Hi-Fi/21PIN/OSD/VPS/NICAM BLOCK DIAGRAM NICAM IC IC6601 TDA9874H X6601 24.576MHz VIDEO_IN EE/VV_V_OUT Y/C/AUDIO/ HEAD AMP 2FSC TU_V_OUT Q4802 BUFFER J4503 TU6001 OSD IC IC4801 OEC3031A CG_DATA CG_CLK CG_CS SYSCON/SERVO/ IIC_CLK TIMER IIC_DATA HI-FI/AUDIO/CANAL SW IC IC5501 TDA9605H HF_COM Y/C/AUDIO/ HEAD AMP NORMAL_A_IN NORMAL_A_OUT FRONT_V_IN...
INTERCONNECTION DIAGRAM FULL ERASE HEAD ASS’Y H5002 HALL MAIN ROTOR SENSOR COIL MAGNET FG SENSOR LOADING MOTOR AC240V_50Hz M101 HALL HALL CD501_1 SWITCH LOGIC BLUE S502 CP1001 BROWN S501 CAP_FG CAP_VCO VCC(5V) CAP/M/F/R I_LIMIT MOTOR_GND CYL/LAD_VCO COMMAND TRANSMITTER CAP_CTL TM601 OS651 LDM_CTL CAPSTAN DD UNIT...
WAVEFORMS Y/C/AUDIO/HEAD AMP 0.5V 10us/div 10V 5us/div 2 PB 7 REC, PB 200mV 10us/div 200mV 0.5ms/div POWER POWER ON 100mV 50ns/div 50.0V 2us/div SYSCON/SERVO/TIMER 1.0V 200ms/div 100mV 5ms/div REC, PB 1V 5ms/div 1.0V 200ms/div NOTE: The following waveforms were measured at the point of the corresponding balloon number in the schematic diagram.
CHASSIS EXPLODED VIEW (TOP VIEW) CD1501 M2003 UN4001 CD1002 H5002 H5001 CD1502 M101 NOTE: Applying positions AA, AB, AC and AD for the CLASS PART NO. MARK grease are displayed for this section. GREASE G-555G Check if the correct grease is applied for each MG-33 position.
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CHASSIS EXPLODED VIEW (BOTTOM VIEW) CD1501 M2001 CD1502 NOTE: Applying positions AA, AB, AC and AD for the CLASS PART NO. MARK grease are displayed for this section. GREASE G-555G Check if the correct grease is applied for each MG-33 position.
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REF. NO. PART NO. DESCRIPTION NOTES: *** CONNECTORS *** 1. Use the designated parts for the parts with the mark ! in order to maintain the safety. 2. Materials of Resistors and Capacitors are abbreviated as follows ; CP4501 OR067U011029 WIRE HOLDER B2013H02-11P RESISTORS...
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SANYO Electric Co.,Ltd. Jul./’02/100 Printed in Japan Osaka, Japan Version A...