Aiwa VX-F205 Service Manual
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Aiwa VX-F205 Service Manual

Aiwa VX-F205 Service Manual

Integrated color tv / stereo video cassette recorder
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SERVICE MANUAL
INTEGRATED COLOR TV / STEREO VIDEO
CASSETTE RECORDER
GENERAL
POWER REQUIREMENTS .................
POWER CONSUMPTION ...................
WEIGHT ..............................................
DIMENSIONS ......................................
TV SECTION
PICTURE TUBE ..................................
TUNER SYSTEM ................................
CHANNEL COVERAGE ......................
PROGRAM MEMORY .........................
TV SYSTEM ........................................
HORIZONTAL RESOLUTION ............
ANTENNA INPUT ...............................
VCR SECTION
OPERATING TEMPERATURE ...........
VIDEO RECORDING SYSTEM ..........
VX-F205
BASIC TAPE MECHANISM : OVD-6
SPECIFICATIONS
120V AC, 60Hz
119W
TYP 4W (power save mode)
26.5 kg (58.5 lbs.)
574 mm (W) x 489 mm (D) x
502 mm (H)
(22 5/8 x 19 3/8 x 19 7/8 in.)
406 mm (W) x 305 mm (H)
(16 x 12 1/8 in.)
508 mm (diagonal) (20 in.)
Frequency synthesized tuner
VHF: 2 to 13
UHF: 14 to 69
CATV: 4A, A-1 to A-5, A to W,
W+1 to W+84
181
M
230 lines
75 ohms, unbalanced
5°C to 40°C
Rotary 2 head helical
scanning system
S/M Code No. 09-003-341-3N1
VIDEO SIGNAL SYSTEM ................
VIDEO HEAD ...................................
USABLE CASSETTES .....................
TAPE SPEED ...................................
RECORDING/PLAYBACK TIME .....
VIDEO INPUT ...................................
VIDEO OUTPUT ..............................
VIDEO S/N .......................................
AUDIO INPUT ..................................
AUDIO OUTPUT ..............................
AUDIO TRACK .................................
FAST-FORWARD TIME ...................
REWIND TIME .................................
HI-FI DYNAMIC RANGE ..................
HI-FI FREQUENCY RESPONSE ....
HI-FI WOW AND FLUTTER .............
•
Design and specifications are subject to change without
notice.
U
NTSC color system, 525 lines, 60
fields
Azimuth 2 head
VHS video cassette
S-VHS video cassette (play back only)
SP: 33.35 mm/sec
LP: 16.67 mm/sec
SLP: 11.12 mm/sec
SP: 3 hours with T-180 tape
LP: 6 hours with T-180 tape
SLP: 9 hours with T-180 tape
1.0Vp-p, 75 ohm, unbalanced
1.0Vp-p, 75 ohm, unbalanced
53dB (nominal)
–8dBs, 50K ohm
–8dBs, less than 1K ohm
3 tracks (Hi-Fi sound 2 tracks, Normal
sound 1 track)
Approx. 2 minutes 15 seconds
with T-120 tape
Approx. 1 minutes 48 seconds
with T-120 tape
More than 90dB
20Hz-20kHz
Less than 0.01%

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Summary of Contents for Aiwa VX-F205

  • Page 1 VX-F205 SERVICE MANUAL INTEGRATED COLOR TV / STEREO VIDEO BASIC TAPE MECHANISM : OVD-6 CASSETTE RECORDER SPECIFICATIONS GENERAL 120V AC, 60Hz VIDEO SIGNAL SYSTEM ....NTSC color system, 525 lines, 60 POWER REQUIREMENTS ....POWER CONSUMPTION ....119W fields TYP 4W (power save mode) VIDEO HEAD ........

  • Page 2: Table Of Contents

    TABLE OF CONTENTS SPECIFICATIONS ................................COVER TABLE OF CONTENTS ..............................A1-1 SERVICING NOTICES ON CHECKING ..........................A2-1 DISASSEMBLY INSTRUCTIONS REMOVAL OF MECHANICAL PARTS AND P.C. BOARDS ................... B1-1, B1-2 REMOVAL OF DECK PARTS ............................B2-1~B2-5 REMOVAL OF ANODE CAP ............................B3-1 KEY TO ABBREVIATIONS ..............................

  • Page 3: Servicing Notices On Checking

    SERVICING NOTICES ON CHECKING 1. KEEP THE NOTICES 6. AVOID AN X-RAY As for the places which need special attentions, they are Safety is secured against an X-ray by considering about indicated with the labels or seals on the cabinet, chassis the cathode-ray tube and the high voltage and parts.

  • Page 4: Disassembly Instructions

    DISASSEMBLY INSTRUCTIONS 1. REMOVAL OF MECHANICAL PARTS 1-3: TV/VCR BLOCK (Refer to Fig. 1-3) Remove the 2 screws 1. AND P.C. BOARDS Disconnect the following connectors: 1-1: BACK CABINET (Refer to Fig. 1-1) (CP303, CP401, CP502, CP4201 and CP4202). Remove the 2 screws 1. Unlock the support 2.
  • Page 5 DISASSEMBLY INSTRUCTIONS 1-5: DECK SHIELD PLATE (Refer to Fig. 1-5) 1-7: JACK PLATE AND SYSCON PCB (Refer to Fig. 1-7) Remove the 2 screws 1. Remove the screw 1. Remove the screw 2. Remove the Syscon PCB in the direction of arrow (A). Remove the screw 3.

  • Page 6: Removal Of Deck Parts

    DISASSEMBLY INSTRUCTIONS 2. REMOVAL OF DECK PARTS NOTE When you install the Tape Guide L, install as shown in the 2-1: TOP BRACKET (Refer to Fig. 2-1) circle of Fig. 2-3-B. (Refer to Fig. 2-3-B) Remove the 2 screws 1. Slide the 2 supports 2 and remove the Top Bracket.
  • Page 7 DISASSEMBLY INSTRUCTIONS 2-6: LINK ASS'Y (Refer to Fig. 2-6) 2-9: TENSION ASS'Y (Refer to Fig. 2-9-A) Set the Link Ass'y to the Eject position. Move the Inclined S Ass'y to the back side. Unlock the support 1 and remove the S Reel Stopper. Remove the (A) side of the Link Ass'y first, then remove the (B) side.
  • Page 8 DISASSEMBLY INSTRUCTIONS 2-11: S REEL/T REEL ASS'Y (Refer to Fig. 2-11) NOTE Remove the Idler Ass'y. Do not touch the Pinch Roller. (Use gloves.) Remove the S Reel and T Reel Ass'y. When you install the Pinch Roller Ass'y, install as Remove the 2 Polyslider Washers 1.
  • Page 9 DISASSEMBLY INSTRUCTIONS 2-15: AHC ASS'Y/CYLINDER UNIT ASS'Y (Refer to Fig. 2-15) Middle Gear Unlock the support 1 and remove the AHC Ass'y. E-Ring Remove the 3 screws 2. Remove the Cylinder Unit Ass'y. Main Cam NOTE Pinch Roller Cam When you install the Cylinder Unit Ass'y, tighten the screws from (1) to (3) in order while pulling the Ass'y Joint Gear Link Lever Spacer...
  • Page 10 DISASSEMBLY INSTRUCTIONS 2-19: LOADING GEAR S/T ASS'Y (Refer to Fig. 2-19-A) 2-20: INCLINED S/T ASS'Y (Refer to Fig. 2-20) Remove the E-Ring 1 and remove the Main Loading Unlock the support 1 and remove the P4 Cover. Gear. Remove the S-S Brake Spring. Unlock the support 2 and remove the Loading Gear Remove the Capstan Brake Spring.

  • Page 11: Removal Of Anode Cap

    DISASSEMBLY INSTRUCTIONS 3. After one side is removed, pull in the opposite direction to 3. REMOVAL OF ANODE CAP remove the other. Read the following NOTED items before starting work. NOTE After turning the power off there might still be a potential Take care not to damage the Rubber Cap.

  • Page 12: Key To Abbreviations

    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...
  • Page 13 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...

  • Page 14: Service Mode List

    SERVICE MODE LIST This unit provided with the following SERVICE MODES so you can repair, examine and adjust easily. To enter SERVICE MODE, Unplug AC cord till lost actual clock time. Then press and hold Vol (-) button of main unit and remocon key simultaneously.

  • Page 15: Preventive Checks And Service Intervals

    PREVENTIVE CHECKS AND SERVICE INTERVALS The following standard table depends on environmental conditions and usage. Unless maintenance is properly carried out, the following service intervals may be quite shortened as harmful effects may be had on other parts. Also, long term storage or misuse may cause transformation and aging of rubber parts. Time 1,000 1,500...
  • Page 16 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.

  • Page 17: Note For The Replacing Of Memory Ic

    NOTE FOR THE REPLACING OF 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. NOTE: Initial Data setting will not be possible if clock has been set.

  • Page 18: Servicing Fixtures And Tools

    SERVICING FIXTURES AND TOOLS (For 2 heads model) (For 4 heads model) JG002B Adapter JG005 Post Adjustment VHS Alignment Tape VHS Alignment Tape JG002E Dial Torque Gauge Screwdriver JG001 (TTV-N2) JG001B (TTV-N2) (10~90gf•cm) Part No. SV-TG0-030-000 JG001A (TTV-N12) JG001I (TTV-N12) JG002F (60~600gf•cm) (small)

  • Page 19: Preparation For Servicing

    PREPARATION FOR SERVICING Basic Servicing Position (In case of needing to check on all blocks) Unplug the connector CP4201, CP4202 and CP303, then remove the TV/VCR Block from the set. Unplug the connector CP810, CP820 and CP805, then remove the Main PCB from the VCR Block. Connect as shown in the below figure using the Service Fixture.
  • Page 20 PREPARATION FOR SERVICING Servicing Position for Main PCB (In case of needing to check on Main PCB) • It's possible to get the Servicing Position without the extension Jig if you arrange the unit as shown below. (But L503 connection can not be done, Degauss circuit will not operate.) L503 (2 Pin) VHS Tape Main PCB...

  • Page 21: Vcr Test Tape Interchangeability Table

    VCR TEST TAPE INTERCHANGEABILITY TABLE There are two types of the new alignment tape CH-1B (for NTSC) and CH-2 (for PAL). On each tape four signals (1) - (4) are recorded for the times and in the order shown below. (1) : 8min.

  • Page 22: Mechanical Adjustments

    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 Tension Adjust until the edge of the Tension the Cassette Tape to keep it steady when you want to Arm is positioning within 0.5mm range from the make the tape run without the Cassette Holder.

  • Page 23: Confirmation And Adjustment Of Tape Running Mechanism

    MECHANICAL ADJUSTMENTS 1-4: CONFIRMATION OF VSR TORQUE 2. CONFIRMATION AND ADJUSTMENT OF TAPE RUNNING MECHANISM Operate within 4~5 seconds after the reel disk begins to turn. Tape Running Mechanism is adjusted precisely at the Install the Torque Gauge (JG002F) and Adapter (JG002B) factory.
  • Page 24 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.

  • Page 25: Mechanism Adjustment Parts Location Guide

    MECHANICAL ADJUSTMENTS 3. MECHANISM ADJUSTMENT PARTS LOCATION GUIDE 1. Tension Adjust P4 Post 2. Tension Arm T Brake Spring 3. Guide Roller T Reel Ass'y 4. P1 Post Idler Ass'y 5. Audio/Control Head S-S Brake Spring 6. X value adjustment driver hole S Reel D1-4...

  • Page 26: Electrical Adjustments

    ELECTRICAL ADJUSTMENTS 1. ADJUSTMENT PROCEDURE Read and perform these adjustments when repairing the CH-2 circuits or replacing electrical parts or PCB assemblies. CAUTION When replacing IC's or transistors, use only specified 6.5H silicon grease (G746). (To prevent the damage to IC's and transistors.) CH-1 Fig.
  • Page 27 ELECTRICAL ADJUSTMENTS 2-5: STEREO SEPARATION 2-9: HORIZONTAL SIZE NOTE: Adjust after performing adjustments in section 2-4. NOTE: Adjust after performing adjustments in section 2-8. Receive the stereo signal. (L=2KHz, R=400Hz) Measurement Equipment Maker: SHIBASOKU Co. Limited Connect the AC voltmeter to AUDIO OUT L/R through Measurement Equipment Model No.: DIGITAL TEST PATTERN GENERATOR 588 stereo filter (L=400Hz, R=2KHz).
  • Page 28 ELECTRICAL ADJUSTMENTS 2-12: VERTICAL POSITION 2-16: SUB COLOR NOTE: Adjust after performing adjustments in section 2-11. Receive the color bar pattern. (RF Input) Using the remote control, set the brightness, contrast, Receive the center cross signal from the Pattern color and tint to normal position. Generator.
  • Page 29 ELECTRICAL ADJUSTMENTS 2-18: SUB CONTRAST 2-23: H. BLK Activate the adjustment mode display of Fig. 1-1 and Activate the adjustment mode display of Fig. 1-1 and press the channel button (4) on the remote control. press the channel button (1) on the remote control. The Fig.

  • Page 30: Electrical Adjustment Parts Location Guide

    ELECTRICAL ADJUSTMENTS 3. ELECTRICAL ADJUSTMENT PARTS LOCATION GUIDE (VCR SECTION) TP1001 TP1002 TP4001 TU601 CP603 L610 TP601 TP4201 J4201 SYSCON PCB D2-5...
  • Page 31 ELECTRICAL ADJUSTMENTS (TV SECTION) TP804 TP806 VR402 VR401 FB401 J801 TP501 FOCUS VOLUME T501 SCREEN VOLUME CRT PCB VR502 MAIN PCB D2-6...

  • Page 32: Purity And Convergence Adjustments

    ELECTRICAL ADJUSTMENTS 4. PURITY AND CONVERGENCE 4-3: STATIC CONVERGENCE ADJUSTMENTS NOTE Adjust after performing adjustments in section 4-2. NOTE Receive the crosshatch pattern from the color bar Turn the unit on and let it warm up for at least 30 generator.

  • Page 33: Troubleshooting Guide

    TROUBLESHOOTING GUIDE (Television division) (In case that there isn't a normal tension for time to do ( 1 ) that a power supply doesn't stanby CD810 every terminal) enter Is there output on the Voltage of C507 is Investigate R501 and F501. secondary of T501 it normal? dimensions or not?
  • Page 34 TROUBLESHOOTING GUIDE (in case that there is a normal tension for time to do ( 2 ) that a power supply doesn't stanby CD810 every terminal) enter Is the voltage 5V for Investigate D1006 and D1011. IC1001 99th pin or not? Is the voltage of IC1001 Investigate D1015 and Q1023.
  • Page 35 TROUBLESHOOTING GUIDE A voice isn't though an image appears Investigate IC701 first pin and Whether does a signal Whether does a signal 11th pin. Then investigate come to IC351 3rd pin come to IC301 2nd pin IC6602 8, 9th pin and 12th pin and 6th pin or not? and 19th pin or not? or a peripheral circuit.
  • Page 36 TROUBLESHOOTING GUIDE A color doesn't adhere to it Whether is wave form of Investigate X604. IC604 47th pin normal or not? Whether is wave form of Investigate IC604. IC604 54th pin normal or not? IC604 17th pin, 18th pin, and whether is wave form Investigate IC604.
  • Page 37 TROUBLESHOOTING GUIDE An image doesn't appear Whether does video signal Investigate IC701 and a appear for IC701 17th pin peripheral circuit. or not? Is the voltage DC 5V for Investigate P.CON 5V line. IC604 6th pin or not? Whether is a luminance Investigate IC604.
  • Page 38 TROUBLESHOOTING GUIDE An only horizontal line appears Is the voltage DC 25V for Investigate R452. IC401 6th pin or not? Investigate CRT, IC401 and a Is the voltage DC 14V for peripheral circuit. IC401 2nd pin or not? Whether does a vertical Investigate IC604.
  • Page 39 TROUBLESHOOTING GUIDE (Video division) Release playback Insert a cassette, push a PLAY button. Investigate a tape roading, Is the playback released roading belt, mode sensor, DD approximately 3 seconds motor, and cylinder motor. later? Is the playback released Investigate a reel sensor and approximately 6 seconds reel belt.
  • Page 40 TROUBLESHOOTING GUIDE When playback, a screen doesn't appear Whether it takes 5V for Investigate a power supply Whether does a screen IC4001 16, 25, 40, 55, circuit. of E-E appear or not? 58, 75, 87th pin or not? Whether there are PB Investigate a connection of Y/C signal for TP4001 IC4001 and cylinder.
  • Page 41 TROUBLESHOOTING GUIDE When playback, a color doesn't adhere to it Whether does FM Investigate CP4001 and the envelope appear for peripheral circuit. TP4001 or not? Whether does CHROMA Investigate Q4008 and the signal appear for IC4001 peripheral circuit. 71st pin or not? Whether does composite signal appear for IC4001 Exchange IC4001.
  • Page 42 TROUBLESHOOTING GUIDE Noise (it is really back to have cleaned a head) for a picture when playback Whether does Exchange cylinder unit and TP4001 FM signal CP4001. appear or not? There is FM signal for IC4001 41st pin, and Investigate a peripheral doesn't a noise circuit of IC4001 46th pin.
  • Page 43 TROUBLESHOOTING GUIDE No color during self recording and playback Investigate a video input Whether there is a circuit. (FRONT, and REAR video signal for IC4001 VIDEO IN) 29th pin or not? Whether there is Investigate Q4010 peripheral CHROMA signal for circuit.
  • Page 44 TROUBLESHOOTING GUIDE When playback, a sound doesn't appear Whether does a It refers to a clause of " E-E sound appear doesn't appear". with E-E or not? Investigates wound, whether a connector with an audio head is complete and inserted into Whether there is an CP4005 to investigate whether audio signal for IC4001...
  • Page 45 TROUBLESHOOTING GUIDE Capstan DD motor doesn't rotate When playback, is a Investigate a power supply tension of 8th pin of circuit. CP1004 5V? When playback, voltage of 4th pin of CP1004 2.5V or Exchange IC1001. whether is IC1001 12th pin 2.5V or not? When being reborn, is Exchange IC1001.
  • Page 46 TROUBLESHOOTING GUIDE A audio can't record it A bias level with L4003 Investigate Q4005 and is OK (approximately Q4006 peripheral circuit. 40Vp-p) Whether there is an Investigate a circuit to IC4001 audio signal for IC4001 76th pin with IC5501 61st pin. 76th pin or not? Whether there is an Investigate IC4001 and the...
  • Page 47 TROUBLESHOOTING GUIDE Though a cassette can insert it, a tape doesn't move Investigate a portion related to Does mode indicator roading motor and a mode appear in Display? sensor. Does VCR operate with Investigate IC1001 and CP1005. the remote control? Investigate a tact SW.
  • Page 48 TROUBLESHOOTING GUIDE Recording mechanism works, but no video recorded from input jack or tuner Whether there is a Investigate video input jack and video signal for IC4001 IC4001, tuner and IC4001 36, 38th pin or not? circuit. Whether there is a video Whether there is a signal for IC4001 41st video signal for IC4001...
  • Page 49 TROUBLESHOOTING GUIDE No E-E (no video and audio from tuner) Whether TU601 7th pin Investigate a power supply is 5V or not, whether is circuit. 9th pin 30V or not? Whether is IC604 6 and Investigate 5V and 9V lines. 28th pin 5V or not? Whether there is a Investigate a line of IC4001...
  • Page 50 TROUBLESHOOTING GUIDE Cylinder not rotating during playback and recording Whether is a voltage of Investigate UNREG 12V line of a CP1005 2nd pin DC 12V MAIN PCB. approximately or not? When playback, is a voltage of 5th pin of Exchange a cylinder motor. CP1005 DC 1.2V approximately? When playback, is a...
  • Page 51 TROUBLESHOOTING GUIDE A sound shakes Whether is an audio Exchange an audio head. head wounded or not? Whether is an input level of IC1001 87th Exchange capstan DD unit. pin a sine wave of 2.5Vp-p or not? When playback, is a When playback, is a tension of 65th pin of tension of 3rd pin of...
  • Page 52 TROUBLESHOOTING GUIDE A cassette tape can't insert it Whether does WORM Investigate a front roading gear gear of a cassette roading and LOCKER. block move or not? When not inserting Investigate IC1001 to a cassette more, is investigate LED and a tension of 3, 4th photosensor of a MAIN PCB pin of IC1001 0V?
  • Page 53 TROUBLESHOOTING GUIDE When inserting cassette, it ejects immediately For whether it is a cassette Whether don't you defective product or not, enter it with an other cassette roading block cassette or not? defective product. If you cover an infrared Exchange EOT/BOT photo rays sensor, 3rd of IC1001, transister.
  • Page 54 TROUBLESHOOTING GUIDE FF/REW do not work When pushing FF/REW button, does the voltage Exchange IC1001. of 65th pin of IC1001 Investigate IC1001 72nd pin. change? Whether does the Investigate Q1001 and the voltage of CP1004 peripheral circuit. 4th pin change? Investigate deck mechanism.
  • Page 55 TROUBLESHOOTING GUIDE Tape loading is OK, but unloads immediately Whether it takes UNREG Investigate a power supply Whether does a 12V for CP1005 2nd pin circuit. cylinder rotate or not? or not? Whether is a voltage of a When playback, it whether DC 5V pulse depends takes 1.3V for 5th on IC1001 65th pin or not...
  • Page 56 TROUBLESHOOTING GUIDE When playback, a picture vertically finely shakes Whether does a noise appear for a screen or not? For tracking UP/DOWN Investigate P/B envelope. make, does a noise of a screen get with no? Whether is a height Adjust guide post height. of a guide post correct or not? Whether is PG SIFTER...
  • Page 57 TROUBLESHOOTING GUIDE Auto tracking doesn't work Whether does DC level Investigate IC4001 and cylinder of IC4001 93rd pin unit. change with manual tracking or not? Whether is VIDEO Exchange IC1001. SYNC in IC1001 59th pin or not? Investigate Y/C circuit. E-25...
  • Page 58 TROUBLESHOOTING GUIDE When playback, fast forward or rewind mode is activated, unit stops immediately Whether does It refers to a clause of "Capstan capstan DD motor DD motor doesn't rotate" rotate or not? Whether is capstan Exchange capstan belt. belt normal or not? Whether there is a reel sensor pulse signal for Investigate Q1001 and R1006.
  • Page 59 TROUBLESHOOTING GUIDE When playback, a picture horizontally shakes Whether is FG output level of CP1005 3rd Exchange a cylinder motor. pin approximately 4.5Vp-p or not? Do you hang a load, become approximately 4V for 1.3V or Exchange IC1001. cylinders voltage of CP1005 5th pin? Exchange a cylinder motor.

  • Page 60: Servo Timing Chart

    SERVO TIMING CHART IC1001 (OEC7041A) DPG ( 0 PIN DFG * 9 PIN H. SW. P CH 1 CH 2 ! 8 PIN V-SYNC (E-E) % 9 PIN REC CTL (REC) ( 7 PIN V-SYNC (TRICK PB) ! 3 PIN •...
  • Page 61 IC DESCRIPTION OEC7041A (IC1001) Pin No. Pin Name DESCRIPTION MSSEN-A Input terminal of mecha state sensor. MSSEN-B Tape end sensor input signal. Tape start sensor input signal. HI-FI-ENV Input terminal of HiFi RF envelope. VIDEO-ENV Input terminal of video RF envelope. AFT(MONI) Input terminal of AFT.
  • Page 62 IC DESCRIPTION OEC7041A (IC1001) Pin No. Pin Name DESCRIPTION OSC-OUT2 O Condenser connection for OSC-OUT2. Ground. CM_ADV_VIDEO I/O Not used. CM_ADV_AUDIO Not used. OSD-VSS Ground. TAB SW Input terminal for judge the tape if it has TAB or not. SERVICE Input terminal for Service Mode.
  • Page 63 IC DESCRIPTION OEC7041A (IC1001) Pin No. Pin Name DESCRIPTION AMP-VSS Ground. DRUM-FG Input terminal for drum rotation signal detection. DRUM-PG Input terminal for DRUM PG signal detection. AMP-VREFOUT O Condenser connection for AMP-VREFOUT. AMP-VREFIN Condenser connection for AMP-VREFIN. Condenser connection for C. CTL- I/O Input and output terminal of Control Head.

  • Page 64: System Switch Mode

    SYSTEM SWITCH MODE : CAPSTAN FWD ROTATING SLOW : SETTING SPEED TO SERVO LOADING DIRECTION DIRECTION : MECHANICAL MOVEMENT AND CAPSTAN ROTATING (FWD) : CAPSTAN RVS ROTATING : MECHANICAL MOVEMENT (NO CAPSTAN ROTATING) DIRECTION EJECTION UNLOADING STP3 F. SLOW PB/STP STP2 FF/REW LIGHT...

  • Page 65: Semiconductor Base Connections

    SEMICONDUCTOR BASE CONNECTIONS DIODE CATHODE CATHODE ANODE ANODE ANODE CATHODE 1SS133T-77 11E1N-TA1B2 10ELS6TA1B2 SID1050CM SLZ-345B-02-T1 FMV-3FULF027-102 HZ11B3L TD 11EQS04N-TA1B2 21DQ09N-TA2B1 SLR-342VCT32 HZ27-1L TD 11ES1N-TA1B2 RM11C HZ30-1L TD 1N4005E-G23 RM11C-LF-B1 MTZJ30B T-77 RD12FB-T7 RU2AM V1 MTZJ5.1B T-77 RMPG06J MTZJ5.6B T-77 MTZJ6.2B T-77 MTZJ6.8B T-77 MTZJ9.1B T-77 SB10-03A3...

  • Page 66: Semiconductor Base Connections

    SEMICONDUCTOR BASE CONNECTIONS TRANSISTOR SG-260 2SA1318(S,T)-AA 2SC1740SP TP 2SD2396(J,K) 2SC2621(D,E)-RAC 2SA1037AKT146R,S RPI-352Q01R 2SA1371(D,E)-AE 2SC2412KT146 R,S 2SA733(C)-T_Q DTC114TKAT146 2SB892(S,T)-AE 2SC1317(Q,R,S)-T 2SC1815Y(TPE2) 2SC2909(S,T)-AA 2SC3331(S,T,U)-A 2SD2499(LBOEC1) DTA124EKAT146 2SC4160-OEC-YAC1 DTC114EKAT146 2SD1667(R,S) DTC124EKAT146 DTC143EKAT146...

  • Page 67: Y/C/Audio/Head Amp/In/Out

    TV BLOCK DIAGRAM V. OUTPUT IC401 LA7840 THERMAL R. SIGNAL PROTECTION G. SIGNAL PUMP B. SIGNAL COLOR SIGNAL LUMINANCE SIGNAL TUNER VIDEO SIGNAL AUDIO SIGNAL Q405 Q406 DEFLECTION SIGNAL H. DRIVE H. OUTPUT X604 3.579545MHz CHROMA/IF FB401 IC604 LA76814BM HIFI TU.A.OUT_1 J801 Q603...

  • Page 68: Hifi

    Y/C/AUDIO/HEAD AMP/IN/OUT BLOCK DIAGRAM RECORD LUMINANCE SIGNAL PLAYBACK LUMINANCE SIGNAL HIFI HF COM RECORD COLOR SIGNAL Q4010 PLAYBACK COLOR SIGNAL BUFFER TUNER VIDEO SIGNAL AUDIO SIGNAL(REC) AUDIO SIGNAL (PB) CP4001 HF1 (R) Y/C/A/H.AMP IC4001 HF COM LA71170M-MPB 63 61 HF2 (L) SP CH1 (R) Q4008 SP COM...
  • Page 69 MICON/POWER/OPERATION BLOCK DIAGRAM SW1001 SYSCON_TIMER_SERVO IC1001 OEC7041A TAB SW POWER FAIL(DC) POWER_FAIL_L X-OUT(12MHz) X1001 12MHz X-IN(12MHz) AT+5.6V HI-FI-ENV. HIFI_ENV. MSSEN-A HIFI-H.SW HIFI_H.SW MS_SEN A P. CON 5V Q1009 STEREO SEL ST SELECT HIFI VCR_A_MUTE VCR_A_MUTE V.REC_ST_H MSSEN-B SYSTEM RESET MS_SEN B IC1002 RESET-L 3 OUT...
  • Page 70 HIFI BLOCK DIAGRAM J701 HIFI AUDIO/H.AMP/DEM IC5501 AN3662FBP FRONT_VIDEO_IN REAR_A_IN_R INPUT SW Y/C/AUDIO/ REAR_A_IN_L H.AMP/IN/OUT H.AUDIO_OUT_R Y/C/AUDIO/ OUTPUT HF_COM H.AMP/IN/OUT H.AUDIO_OUT_L Y/C_AUDIO TU.A.OUT_1 NORMAL_A FM LIM VCO-FO LOGIC V. REC_ST-H BLOCK HIFI_ENV. P.CON 5V HIFI_H.SW MICON/POWER/ OPERATION VCR_A_MUTE P.CON 9V LOGIC ST_SELECT TUNER VIDEO SIGNAL...

  • Page 71: Printed Circuit Boards (Operation/Deck

    PRINTED CIRCUIT BOARDS OPERATION SOLDER SIDE CD757_1 CD702 W812 SW794 SW793 SW792 SW791 SW797 SW796 SW799 SW798 SW750 R351 D794 W804 J351 D793 R773 SW751 R774 R772 R771 R777 C779 R775 W805 R776 R758 J701_1 C353 OS753 W813 D796 D791 R766 R352 W001...

  • Page 72: Operation Schematic Diagram

    OPERATION SCHEMATIC DIAGRAM (OPERATION PCB) W807 R752 W805 R778 R771 R772 R773 R774 FROM/TO I/O 1.5K 2.7K 5.6K OS753 CD757_1 (CP4201) CH2A012A PIC-28143TC5 REMOCON OUT AT 5V Vout POWER ON LED OTPB LED R775 R776 R777 R780 KEY A 1.5K 2.7K T-REC LED REC LED...

  • Page 73: Deck Schematic Diagram

    DECK SCHEMATIC DIAGRAM LOADING MOTOR M101 S105 BOT SENSOR S106 Q101 RPT-38PB113 S101 S102 S103 S104 FROM/TO MICON CP101 52044-0445 LDM+ LDM- FROM/TO MICON CP102 173979-2 EOT SENSOR Q102 RPT-38PB113 PCB550 VE8851 CAUTION: SINCE THESE PARTS MARKED BY ATTENTION: LES PIECES REPAREES PAR UN ETANT NOTE: THE DC VOLTAGE AT EACH PART WAS...

  • Page 74: Printed Circuit Boards Syscon

    PRINTED CIRCUIT BOARDS SYSCON Q4204 Q1006 C1075 Q1023 Q1012 R1038 Q1014 Q1008 Q1010 Q1017 Q1018 R1037 Q4206 Q4202 Q4205 R603 C655_1 Q4201 C1007 C657 Q1002 R1008 R1003 R1028 R1061 Q4210 R1062 R1083 C689 C616 W144 Q1004 Q4211 Q4203 C1076 W849 R617 C1027 R653...
  • Page 75 PRINTED CIRCUIT BOARDS SYSCON...
  • Page 76 PRINTED CIRCUIT BOARDS SYSCON Q4204 Q1006 C1075 Q1023 Q1012 R1038 Q1014 Q1008 Q1010 Q1017 Q1018 R1037 Q4206 Q4202 Q4205 R603 C655_1 Q4201 C1007 C657 Q1002 R1008 R1003 R1028 R1061 Q4210 R1062 R1083 C689 C616 W144 Q1004 Q4211 Q4203 C1076 W849 R617 C1027 R653...

  • Page 77: Y/C/Audio/Head Amp Schematic Diagram

    Y/C/AUDIO/HEAD AMP SCHEMATIC DIAGRAM R4029 (SYSCON PCB) S822X S822Y FROM POWER (S150) P.CON+5V W818 R4005 P.CON+10V Y/C_AUDIO C4080 1.5K BUFFER 6.3V FROM/TO HIFI C4001 Q4008 C4056 R4074 2SC2412K FROM/TO I/O NORMAL_A R4044 0.056 B 1.8K 0.1 B GND_1 Y/C_AUDIO R4002 1.8K FRONT_VIDEO_IN 1.2K...

  • Page 78: Micon Schematic Diagram

    SERVICE MICON SCHEMATIC DIAGRAM TP1001 (SYSCON PCB) D1011 D1006 SB10-03A3 FROM/TO POWER SB10-03A3 AT+5.6V R1032 P.CON+5V P.CON+12V POWER_FAIL[DC] R1059 VCR_POWER_H BUFFER CAP_MID_H Q1016 CAP_VCO 2SC2412K C1055 R1001 330P CH MOTOR_GND R1029 X_RAY X-RAY SW R1057 3.3K BUFFER Q1023 R1045 Q1015 4.7K H.SW 2SC2412K...

  • Page 79: Chroma/If Schematic Diagram

    CHROMA/IF SCHEMATIC DIAGRAM (SYSCON PCB) FROM/TO MICON VCR_POWER_H TV_POWER_H R654 L612 P.CON+5.6V[A] 100K 22uH OSD_R W845 R655 OSD_G R616 BUFFER OSD_B L602 Q602 OSD_BLK W910 2SA1037AK R629 1K BUFFER 15uH AFT_M Q604 C674 BUFFER X_RAY 2SC2412K 82P CH Q603 2SC2412K IIC_OFF C687 FROM/TO Y/C/A/H.AMP...

  • Page 80: Hifi Schematic Diagram

    HIFI SCHEMATIC DIAGRAM (SYSCON PCB) C5521 R5518 0.22 B 2.7K C5514 0.1 B FROM/TO I/O HIFI AUDIO/H.AMP/DEM FRONT_A_IN_R IC5501 FRONT_A_IN_L AN3662FBP REAR_A_IN_R HIFI ENV REAR_A_IN_L TP5501 C5506 0.1 B C5540 0.015 B H_AUDIO_OUT_R DEM_BLK ZZ-PROM PILOT LOGIC H_AUDIO_OUT_L C5507 0.1 B C5541 0.22 B INPUT MUTE VCO-F0...

  • Page 81: In/Out Schematic Diagram

    IN/OUT SCHEMATIC DIAGRAM (SYSCON PCB) W804 ON TIMER LED SW Q4201 DTC114EKA LED SW OTPB Q4205 LED SW DTC114EKA Q4202 DTC114EKA T-REC LED SW Q4206 DTC114EKA W821 W825 TV POWER LED SW Q4204 DTC114EKA W823 FROM/TO SOUND AMP SP_OUT_R SOUND_R+ SP_OUT_L SOUND_L+ SOUND_GND...

  • Page 82: Power Schematic Diagram

    POWER SCHEMATIC DIAGRAM (SYSCON PCB) TO Y/C/A/H.AMP CAP MID VCC DRIVER P.CON+10V Q1011 2SD2396 C1004 P.CON+5V D1010 29.0 DRIVER 29.0 P.CON 5V DRIVER 1N4005E Q1010 Q1019 DTA124EKA 2SB892 R1035 FROM/TO MICON 1.8K CAP VCC ADJ Q1012 AT+5.6V 2SC2412K CAP_MID_H R1065 P.CON+12V FROM TV POWER Q1008...

  • Page 83: Sound Amp Schematic Diagram

    SOUND AMP SCHEMATIC DIAGRAM (SYSCON PCB) SOUND_AMP IC352 AN7522 HS352 763WAA0027 W819 FROM/TO I/O SOUND_L+ C350 SOUND_R+ SP_OUT_R SP_OUT_L FROM CHROMA/IF B301 SOUND+B BL01RN1-A63 SOUND_GND FROM MICON R353 TV_POWER_H R359 TV_A_MUTE MUTE Q350 2SC2412K SDA_A SCL_A S816X S816Y C302 R306 FROM/TO I/O SOUND_GND 0.033 B...

  • Page 84: Printed Circuit Boards (Main/Crt

    PRINTED CIRCUIT BOARDS MAIN/CRT Q513 Q506 Q401 C415 R514 C419 R428 Q402 Q507 C549 Q521 Q520 C805 R819 C806 R821 R815 R813 R404 R817 C804 R401 R409 R426 I-14...
  • Page 85 PRINTED CIRCUIT BOARDS MAIN/CRT I-15...
  • Page 86 PRINTED CIRCUIT BOARDS MAIN/CRT Q513 Q506 Q401 C415 R514 C419 R428 Q402 Q507 C549 Q521 Q520 C805 R819 C806 R821 R815 R813 R404 R817 C804 R401 R409 R426 I-16...

  • Page 87: Deflection Schematic Diagram

    DEFLECTION SCHEMATIC DIAGRAM (MAIN PCB) CP401 B05B-DVS V.OUTPUT IC401 LA7840 THERMAL PUMP UP PROTECTION TO DY 14.2 23.5 22.8 C412 500V 390P C409 0.0033 B R404 R413 R416 6.8K FROM/TO CHROMA/IF CP820_1 (CP601) 8283_1112_00_000 SOUND GND SOUND+B HS401 VCR POWER H 763WAA0089 TV POWER H V801...

  • Page 88: Tv Power Schematic Diagram

    TV POWER SCHEMATIC DIAGRAM (MAIN PCB) TV.POWER_H P.CON+125V 127.0 127.5 127.0 D532 R511 +B 100V DRIVE Q503 7A 125V 2.5A 250V 5A 125V 4A 125V 6V POWER REG 11E1N 2SC4160 100V DRIVE IC505 -OEC-YAC1 Q502 D527 D530 127.5 KIA7806PI D516 RELAY DRIVE 2SA1371 CAUTION:...

  • Page 89: Crt Schematic Diagram

    CRT SCHEMATIC DIAGRAM (CRT PCB) RED AMP R801 Q810 2SC1740SP TP804 R828 2.7K 1/4W RED AMP Q801 123.5 2SC2621 R813 D801 1SS133 R810 C810 390P CH FROM CHROMA/IF GREEN AMP J801 C813_1 R802 CP805 (CP602) Q811 CVT3275-5101 8283_0512_00_000 0.022 M TP805 2SC1740SP R829...

  • Page 90: Interconnection Diagram

    INTERCONNECTION DIAGRAM TM101 REMOCON SENSOR HALL MAIN ROTOR OS753 SENSOR COIL MAGNET FG SENSOR CD757 CP4201 REMOCON OUT Vout AT 5V J351 POWER ON LED OTPB LED HALL HALL KEY A SWITCH T-REC LED LOGIC REC LED CP1004 KEY B MOTOR GND ON TIMER LED I LIMIT...

  • Page 91: Waveforms

    WAVEFORMS TV POWER Y/C/AUDIO/HEAD AMP 6 50V. 10µs/div 11 REC 1 5.0V 0.1ms/div 0.5V. 0.2ms/div DEFLECTION 2 2.0V 20µs/div 50V. 10µs/div 100mV. 0.2ms/div DEFLECTION 8 10V. 10ms/div 200mV. 10ms/div 200mV. 0.2ms/div TV POWER 200mV. 20µs/div 2V. 10µs/div 0.5V 20µs/div 50V. 10µs/div 10 0.5V 5µs/div 200mV.
  • Page 92 WAVEFORMS 1V. 0.5ms/div 100mV. 10µs/div 1V. 5ms/div 5V. 20µs/div 2V. 5ms/div 0.5V. 0.5ms/div 20mV. 5µs/div 1V. 10ms/div 200mV. 5ms/div MICON IN/OUT 1V. 2ms/div 0.5V. 10µs/div 2V. 5ms/div 30 POWER ON 200mV 20µs/div 1V. 20µs/div 0.5V. 0.5ms/div NOTE: The following waveforms were measured at the point of the corresponding balloon number in the schematic diagram.
  • Page 93 WAVEFORMS CHROMA/IF 31 200mV. 1ms/div 33 200mV. 10µs/div 34 50mV. 10µs/div 35 200mV. 10µs/div SOUND AMP 100mV. 1ms/div NOTE: The following waveforms were measured at the point of the corresponding balloon number in the schematic diagram.

  • Page 94: Mechanical Exploded View

    MECHANICAL EXPLODED VIEW J801 PCB110 (CRT PCB) L503 V801 PCB070 (MAIN PCB) SP302 PCB030 (OPERATION PCB) SP301 K1-1...
  • Page 95 MECHANICAL EXPLODED VIEW TU601 PCB010 (SYSCON PCB) K1-2...

  • Page 96: Mechanical Replacement Parts List

    MECHANICAL REPLACEMENT PARTS LIST REF. NO. PART NO. DESCRIPTION Q'TY REF. NO. PART NO. DESCRIPTION Q'TY S5-620-1Q7-200 CABI,FRONT ASS'Y S2-A97-A40-770 W,9.7-14-T0.7 ---- SHIELD,CASE HEAD AMP ASS'Y S9-9HV-3T0-000 HOLDER,ANODE WIRE ---- PLATE,EARTH-SYSCON S4-1WU-A00-010 SPR,EARTH ---- LABEL,ENEGY STAR S3-004-952-070 NUT,(VOLUME NUT 3/8 INCH) ---- HEAT SINK S5-620-1Q7-400 CABI,BACK ASS'Y...

  • Page 97: Chassis Exploded View (Top View)

    CHASSIS EXPLODED VIEW (TOP VIEW) M2003 UN4001 H5001 H5002 M101 PCB550 (DECK PCB ASS'Y) NOTE: Applying positions AA, AB, AC, AD and BA for CLASS PART NO. MARK the grease or oil are displayed for this section. GREASE G-555G Check if the correct grease or oil is applied for G-488M each position.

  • Page 98: Chassis Exploded View (Bottom View)

    CHASSIS EXPLODED VIEW (BOTTOM VIEW) M2001 NOTE: Applying positions AA, AB, AC, AD and BA for CLASS PART NO. MARK the grease or oil are displayed for this section. GREASE Check if the correct grease or oil is applied for G-555G each position.

  • Page 99: Chassis Replacement Parts List

    CHASSIS REPLACEMENT PARTS LIST REF. NO. PART NO. DESCRIPTION Q'TY REF. NO. PART NO. DESCRIPTION Q'TY ---- DECK ASSY A55901B420A S5-OP9-006-860 TAPE GUIDE R S5-OP9-007-070 COVER,SENSOR L S5-OA5-000-220 AHC ASS'Y S5-OP9-006-880 LEVER,FLAP S5-OP2-002-700 BELT,CAPSTAN S5-OP9-006-900 CASS HOLDER S5-OP9-007-100 LEVER,REC S5-OP9-006-910 LOCKER,L S5-OP5-000-830 BASE,AC HEAD S5-OP9-006-920 LOCKER,R S5-OP8-003-240 SPR,AC HEAD...

  • Page 100: Electrical Replacement Parts List

    ELECTRICAL REPLACEMENT PARTS LIST REF.NO. PART NO. DESCRIPTION REF.NO. PART NO. DESCRIPTION SYSCON PCB ASS'Y *** CAPACITORS *** *** RESISTORS *** C4058 87-015-695-080 CAP,E 1-50V C4062 87-015-075-040 CAP,E 10-16V R628 S4-X5T-682-3F0 RES,MF 82K-1/6W C4063 87-015-695-080 CAP,E 1-50V R640 S4-X5T-647-2F0 RES,M 4.7K-1/6W C4067 87-015-683-080 CAP,E 33-16V...
  • Page 101 ELECTRICAL REPLACEMENT PARTS LIST REF.NO. PART NO. DESCRIPTION REF.NO. PART NO. DESCRIPTION *** ICS *** *** COILS *** IC301 87-A20-312-010 IC,M62420SP L610 S3-360-203-880 COIL,V IFT IC352 S0-FSP-752-200 IC,AN7522 L612 87-005-688-080 COIL,22UH ! IC604 S0-3FE-814-B00 IC,LA76814BM-MPB L613 S2-1LA-668-0K0 COIL,68UH IC1001 S5-6F5-704-1A0 IC,OEC7041A L614 S2-1LA-668-0K0 COIL,68UH IC1002...
  • Page 102 ELECTRICAL REPLACEMENT PARTS LIST REF.NO. PART NO. DESCRIPTION REF.NO. PART NO. DESCRIPTION *** DIODES *** *** CAPACITORS *** D791 S0-217-211-500 LED,SLR-342VCT32 C425 87-015-694-080 CAP,E 0.47-50V D793 S0-217-211-500 LED,SLR-342VCT32 C427 S5-3FF-56R-8K0 CAP,E 6.8-50V NP D794 S0-217-211-500 LED,SLR-342VCT32 ! C428 S4-N8F-J12-3H0 CAP,MPP 0.012-1.25KV D795 S0-213-5Q1-600 LED,SLZ-345B-02 C429...
  • Page 103 ELECTRICAL REPLACEMENT PARTS LIST REF.NO. PART NO. DESCRIPTION REF.NO. PART NO. DESCRIPTION *** DIODES *** *** FUSES *** D531 S2-8T1-1E1-N10 DIODE,11E1N-TA1B2 CP803A S6-7R1-050-190 HOLDER,WIRE 51052-0500 D532 S2-8T1-1E1-N10 DIODE,11E1N-TA1B2 D534 S2-8T1-0EL-S60 DIODE,10ELS6TA1 ! F501 S8-1PA-050-030 FUSE,233005-MB000 D535 S2-8T1-1ES-N10 DIODE,11ES1N-TA1B2 ! F502 S8-0PA-2R5-010 FUSE,23302.5-MB00 D536 S2-8T1-1E1-N10 DIODE,11E1N-TA1B2...
  • Page 104 ELECTRICAL REPLACEMENT PARTS LIST REF.NO. PART NO. DESCRIPTION *** COILS *** L005 S2-A6A-8A0-A10 CORE,FERRITE HF57T18.5*10*10 ! L503 S2-8R2-000-240 COIL,DEGAUSS 8R200024 *** AC CORD *** ! CD501 S2-0R6-149-180 CORD,AC 0R614918 *** OTHERS *** CD303 S6-CH1-440-0A0 CORD CONN CH14400A SP301 S7-0V0-420-010 SPKR S0410J05A SP302 S7-0V0-420-010 SPKR S0410J05A ! V801...
  • Page 105 2–11, IKENOHATA 1–CHOME, TAITO-KU, TOKYO 110, JAPAN TEL:03 (3827) 3111 737004 Printed in Singapore...

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