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MVR2041
SERVICE MANUAL
VIDEO CASSETTE RECORDER
ORIGINAL MFR'S VERSION A
Design and specifications are subject to change without notice.
SERVICING NOTICES ON CHECKING
1. KEEP THE NOTICES
As for the places which need special attentions, they are indicated with the labels or seals on the cabinet, chassis and parts. Make sure to keep the indications and notices in the operation manual.
3. PUT PARTS AND WIRES IN THE ORIGINAL POSITION AFTER ASSEMBLING OR WIRING
There are parts which use the insulation material such as a tube or tape for safety, or which are assembled in the condition that these do not contact with the printed board. The inside wiring is designed not to get closer to the pyrogenic parts and high voltage parts. Therefore, put these parts in the original positions.
2. USE THE DESIGNATED PARTS
The parts in this equipment have the specific characters of incombustibility and withstand voltage for safety. Therefore, the part which is replaced should be used the part which has the same character. Especially as to the important parts for safety which is indicated in the circuit diagram or the table of parts as a ! mark, the designated parts must be used.
4. PERFORM A SAFETY CHECK AFTER SERVICING
Confirm that the screws, parts and wiring which were removed in order to service are put in the original positions, or whether there are the portions which are deteriorated around the serviced places serviced or not. Check the insulation between the antenna terminal or external metal and the AC cord plug blades. And be sure the safety of that.
HOW TO ORDER PARTS
Please include the following informations when you order parts. (Particularly the VERSION LETTER.) 1. MODEL NUMBER and VERSION LETTER The MODEL NUMBER can be found on the back of each product and the VERSION LETTER can be found at the end of the SERIAL NUMBER. 2. PART NO. and DESCRIPTION You can find it in your SERVICE MANUAL.
A1-1
CONTENTS
SERVICING NOTICES ON CHECKING .................................................................................... HOW TO ORDER PARTS .......................................................................................................... CONTENTS ................................................................................................................................ GENERAL SPECIFICATIONS ................................................................................................... DISASSEMBLY INSTRUCTIONS 1. REMOVAL OF MECHANICAL PARTS AND P. C. BOARDS ............................................ 2. REMOVAL OF DECK PARTS ............................................................................................ KEY TO ABBREVIATIONS ....................................................................................................... SERVICE MODE LIST ............................................................................................................... PREVENTIVE CHECKS AND SERVICE INTERVALS ............................................................. SERVICING FIXTURES AND TOOLS ....................................................................................... PREPARATION FOR SERVICING ............................................................................................ MECHANICAL ADJUSTMENTS ................................................................................................ ELECTRICAL ADJUSTMENTS ................................................................................................. BLOCK DIAGRAMS Y/C/AUDIO/CCD/HEAD AMP ................................................................................................. SYSTEM CONTROL/SERVO/TIMER/DECK .......................................................................... TUNER ..................................................................................................................................... POWER ................................................................................................................................... OPERATION ........................................................................................................................... PRINTED CIRCUIT BOARDS SYSCON/OPERATION/DECK ................................................................................................ SYSCON/OPERATION ........................................................................................................... SCHEMATIC DIAGRAMS Y/C/AUDIO/CCD/HEAD AMP ................................................................................................. SYSTEM CONTROL/SERVO/TIMER ..................................................................................... TUNER ..................................................................................................................................... POWER ................................................................................................................................... OPERATION ............................................................................................................................ DECK ....................................................................................................................................... INTERCONNECTION DIAGRAM ............................................................................................... WAVEFORMS ............................................................................................................................. MECHANICAL EXPLODED VIEW ............................................................................................. CHASSIS EXPLODED VIEWS ................................................................................................... MECHANICAL REPLACEMENT PARTS LIST ......................................................................... CHASSIS REPLACEMENT PARTS LIST ................................................................................. ELECTRICAL REPLACEMENT PARTS LIST ..........................................................................
A1-1 A1-1 A2-1 A3-1~A3-4 B1-1 B2-1~B2-5 C1-1, C1-2 C2-1 C3-1 C4-1 C4-1 D1-1~D1-4 D2-1, D2-2 E-1, E-2 E-3, E-4 E-5, E-6 E-7, E-8 E-9, E-10 F-1, F-2 F-3, F-4 G-1, G-2 G-3, G-4 G-5, G-6 G-7, G-8 G-9, G-10 G-11, G-12 G-13, G-14 H-1 I-1 I-2, I-3 J1-1 J2-1 J3-1, J3-2
A2-1
GENERAL SPECIFICATIONS
G-1 VCR System System Video System Hi-Fi STEREO NTSC PB(PAL60Hz) Deck VHS Player / Recorder NTSC No No OVD-6S Front 3 4Head No Mono Yes SP/SLP SP/LP/SLP FF:4'50"/REW:2'30" T-120 SP/LP/SLP=3x,5x/7x,9x/9x,15x 1/10 1/10 US System M 1Tuner USA(w/CATV) F-Synth VHF/UHF 75 OHM 2-69,4A,A-5~ A-1,A-1,J~ W W+1-W+84 45.75MHz 41.25MHz 4.50MHz No Yes 3 or 4 ch 66dBu /75ohm No No 120V,60Hz 8W at 120V 60Hz 1.7W at 120V 60Hz - kWh/Year Yes No 1 V p-p/75 ohm 1 V p-p/75 ohm 50 230Line RCA-8dB/50Kohm RCA-8dB/1Kohm 42dB 1.5% 100Hz - 10kHz 100Hz - 6kHz 100Hz - 4kHz -
DECK Loading System Motor
Heads
Video Head FM Audio Head
Normal Audio /Control Erase(Full Track Erase) Tape Rec PAL Speed NTSC Play PAL NTSC Fast Forward / Rewind Time (Approx.) with Cassette Forward/Reverse Picture Search Frame Advance Slow Speed Broadcasting System Tuner and Receive CH NTSC or PAL-M PAL or SECAM Slow Variable Slow System Destination Tuning System Input Impedance CH Coverage Picture(FP) Sound(FS) FP-FS
G-2
Tuning System
Intermediate Frequency
G-3
Power
G-4
Signal
Preset CH RF Converter Output Channel Level/Impedance Sound Selector Stereo/Dual TV Sound Power Source AC DC Power Consumption Power On(at AC) Stand by (at AC) Per Year Protector Power Fuse Dew Sensor Video Signal Input Level Output Level S/N Ratio (Weighted) Horizontal Resolution at SP Mode Audio Signal Input Level (0dB=0.775Vrms) Output Level S/N Ratio at SP (Weighted) Harmonic Distortion (1KHz) Frequency Response at SP at LP at SLP Hi-Fi Audio Signal Dynamic Range : More than Frequency Response Wow And Flutter : Less than Channel Separation : More than Harmonic Distortion : Less than
A3-1
GENERAL SPECIFICATIONS
G-5 Interface Switch Front Power Play Pause/Still System Select One Touch Playback Channel Up Channel Down F.FWD/Cue Eject/Stop Main Power SW Volume Up Volume Down Rew/Rev Rec/OTR RF Output SW Power Stand by Rec/OTR Repeat Tape In Kurupika Guide One Touch Playback Video Input Audio Input Other Terminal Video Input Audio Input Video Output Audio Output Euro Scart DC Jack 12V(Center +) VHF/UHF Antenna Input AC Inlet Approx. W x D x H (mm) Net (Approx.) Gross (Approx.) Safety Radiation Operation Storage Yes Yes No No No Yes Yes Yes Yes No No No Yes Yes No No No No No No No No RCA RCA No No No RCA RCA No No F Type No 360 x 240 x 95 3.2kg(7.1lbs) 4.6kg(10.2lbs) UL FCC 5oC - 40oC -20oC - 60oC Less then 80% RH Yes Character No Yes Yes No Yes Yes Yes Yes No No Yes (Calendar 12H) Yes Yes No No No Yes Yes Yes Yes No Yes No No Yes No No No No No English French Spanish English
Rear Indicator
Terminals
Front
Rear
G-6 G-7 G-8 G-9 G-10 G-11
Set Size Weight Regulation Temperature Operating Humidity On Screen Menu Display
Menu Type ATS Timer Rec Set Auto Repeat On/Off SAP On Off CH Set-Up TV/CATV Auto CH Memory Add/Delete Pin Code Registration System Set-Up Clock Set Language No Noise Back Ground G-CODE(or SHOWVIEW or PLUSCODE)No. Entry NICAM 1/2,NICAM Off,Audio Output Stereo,Audio Output,SAP Play/Stop/FF/Rew/Rec/OTR/T-Rec/Pause/Eject/Tape In (Symbol Mark) CH/AV Clock Repeat Pin Code Tape Counter Index Hotel Lock Tape Speed Manual Tracking (Bar Setting) Hi-Fi S-Repeat/SR-R/SR-Play VPS PDC OSD Language Setting
G-12
OSD Language
A3-2
GENERAL SPECIFICATIONS
G-13 Display Indicator Indicator Type Clock/Counter,CH,Timer Rec,OTR, Play Rec,FF(Cue),Rew(Rev),Stop,ATR Pause("Rec"Flash) Still("Play"Flush) Eject(Tape Mark Flash) Slow WKL,Y.M.D,Start,End AFT Repeat A-DUB VCR Memory Index VPS PDC SP LP SLP AM PM F1,F2 RF Output CH TAPE IN G-14 Clock,Timer and Timer Back-up Calendar Timer Events One Touch Recording Max Time OTPB Valid Time Timer Back-up (at Power Off Mode) Unit Glow in Dark Remocon Power Source Voltage(D.C) UM size x pcs Total Keys Keys Power 1 2 3 4 5 6 7 8 9 0 CH Up CH Down Input Select Play F.Fwd Rew Pause/Still Stop Rec/OTR Eject Counter Reset Speed Timer Rec TV Monitor Quick View Program Slow Auto Tracking Set/Tracking+ Set/ Tracking Menu Enter Cancel Call TV/VCR Sleep Timer Muting Clock/Counter Zero Return CM Skip Audio Select Yes LED Module Yes Yes Yes Yes Yes No No No No Yes No No No No No No No No Yes No Yes Yes 1990/1/1 ~ 2081/12/31 8 prog/1 month 5 Hours No 5 sec. RC-EA No 3V UM-4 x 2 pcs 34 Keys Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes No Yes Yes Yes No No No Yes Yes Yes Yes Yes Yes Yes Yes Yes No No Yes Yes No No
G-15
Remote Control
A3-3
GENERAL SPECIFICATIONS
G-16 Features Auto Head Cleaning Auto Tracking Index Search HQ (VHS Standard High Quality) Auto Power On, Auto Play, Auto Rewind, Auto Eject Auto Power Off Forward/Reverse Picture Search VIDEO PLUS+(SHOWVIEW,G-CODE) ATS PDC VPS One Touch Playback Picture Control Auto Preset Channel Lock Hotel Lock Anti Theft Audio Dubbing Remort Control Code 1/2 SQPB CATV Energy Star MTS(SAP) CM Skip(30sec x 6 Times) Owner's Manual Language w/Guarantee Card Remote Control Unit Dew Cation Sheet Video Cassette Tape Battery UM size x pcs Yes Yes No Yes Yes Yes Yes No No No No No No No No No No No No No Yes Yes No No English/Spanish No Yes No No No UM-4 x 2 pcs No No No No Single shield No
G-17
Accessories
G-18
G-19
Safety Tip Toll Free Insert Sheet Quick Set-Up Sheet Information Sheet (Buyer Supply) 75 Ohm Coaxial Cable Rod Antenna Poles Terminal Loop Antenna Terminal U/V Mixer DC Car Cord (Center+) Guarantee Card Warning Sheet Circuit Diagram Antenna Change Plug Service Facility List Important Safeguard Dew/AHC Caution Sheet AC Plug Adapter Quick Set-up Sheet AC Cord AV Cord (2Pin-1Pin) Registration Card PTB Sheet Tape Rewinder(Buyer Supply) 300 ohm to 75 ohm Antenna Adapter Carton Master Carton Content Material Dimensions W x D x H(mm) Description of Origin Gift Box Material Dimensions W x D x H(mm) Design Description of Origin Drop Test Natural Dropping At Height (cm) Container Stuffing(40' container) Cabinet Material Cabinet Front
No No No No No No No No No No No No No No Yes No No No No Yes Single/White 430x310x165 As Per BUYER 's Yes 1Corner / 3Edges / 6Surfaces 80 2,828Sets PS 94V2
A3-4
DISASSEMBLY INSTRUCTIONS
2. REMOVAL OF DECK PARTS
2-1: TOP BRACKET (Refer to Fig. 2-1) 1. Slide the 2 supports 1 and remove the Top Bracket.
Top Bracket Tape Guide L
NOTE When you install the Tape Guide L, install as shown in the circle of Fig. 2-3-B. (Refer to Fig. 2-3-B)
Top Bracket REC Lever
1 1
Main Chassis · The REC Lever is not installed on the Video Cassette Player. Main Chassis
Fig. 2-3-B
Fig. 2-1 2-2: FLAP LEVER (Refer to Fig. 2-2) 1. Move the Cassette Holder Ass'y to the back side. 2. Remove the Polyslider Washer 1. 3. Remove the Flap Lever.
2-4: CASSETTE HOLDER ASS'Y (Refer to Fig. 2-4) 1. Move the Cassette Holder Ass'y to the front side. 2. Push the Locker R to remove the Cassette Side R. 3. Remove the Cassette Side L.
Cassette Side R Main Chassis Locker R
Flap Lever
1
Main Chassis
Cassette Side L
Main Chassis
Fig. 2-2 2-3: TAPE GUIDE L (Refer to Fig. 2-3-A) 1. Move the Cassette Holder Ass'y to the back side. 2. Unlock the 2 supports 1 and remove the Tape Guide L. 3. Remove the REC Lever. (Recorder only) 2-5: CASSETTE SIDE L/R (Refer to Fig. 2-5)
Fig. 2-4
1. Unlock the 4 supports 1 and then remove the Cassette Side L/R. NOTE When you install the Cassette Side R, be sure to move the Locker R after installing.
1 1
REC Lever
Tape Guide L Locker R
1
1
1 1
Main Chassis Cassette Side R Cassette Side L
· The REC Lever is not installed on the Video Cassette Player.
Fig. 2-3-A
Fig. 2-5
B2-1
DISASSEMBLY INSTRUCTIONS
2-6: LINK UNIT (Refer to Fig. 2-6) 1. Set the Link Unit to the Eject position. 2. Remove the (A) side of the Link Unit first, then remove the (B) side.
Tension Spring Tension Arm Ass'y Link Unit SS Brake Spring SS Arm Brake (B) (A) Link Unit Inclined S Ass'y Main Chassis Tension Adjust
2 2
Tension Band Ass'y
1 3
Tension Holder
Main Chassis
Fig. 2-6 NOTE
Fig. 2-8-A
2-7: LOADING MOTOR ASS'Y (Refer to Fig. 2-7) 1. Remove the Link Lever. 2. Remove the Dumper Spring. 3. Remove the 2 screws 1. 4. Unlock the support 2 and remove the Loading Motor Ass'y. 5. Unlock the 2 supports 3 and remove the Deck PCB (BOT).
1
Loading Motor Ass'y
When you install the Tension Adjust, install as shown in Fig. 2-8-B. (Refer to Fig. 2-8-B)
Adjust the direction of the Marker to inside.
Fig. 2-8-B
2
Dumper Spring
2-9: T BRAKE ASS'Y (Refer to Fig. 2-9) 1. Remove the T Brake Spring. 2. Remove the T Brake Ass'y.
T Brake Ass'y
3
Main Chassis
1
Deck PCB (BOT) Link Lever
T Brake Spring · Screw Torque: 5 ± 0.5kgf·cm
Fig. 2-7
2-8: TENSION ASS'Y (Refer to Fig. 2-8-A) 1. Move the Inclined S Ass'y to the back side. 2. Remove the Tension Spring. 3. Unlock the support 1 and remove the Tension Arm Ass'y. 4. Remove the Tension Adjust. 5. Unlock the 2 supports 2 and remove the Tension Band Ass'y. 6. Unlock the support 3 and remove the Tension Holder. 7. Remove the SS Brake Spring. 8. Remove the SS Arm Brake.
Fig. 2-9
B2-2
DISASSEMBLY INSTRUCTIONS
2-10: S REEL/T REEL (Refer to Fig. 2-10) 1. Remove the S Reel and T Reel. 2. Remove the 2 Polyslider Washers 1. NOTE 1. Take care not to damage the gears of the S Reel and T Reel. 2. The Polyslider Washer may be remained on the back of the reel. 3. Take care not to damage the shaft. 4. Do not touch the section "A" of S Reel and T Reel. (Use gloves.) (Refer to Fig. 2-10) Do not adhere the stains on it. 5. When you install the reel, clean the shaft and oil it (FL OIL #6115). (If you do not oil, noise may be heard in FF/ REW mode.) 6. After installing the reel, adjust the height of the reel. (Refer to MECHANICAL ADJUSTMENT)
S Reel
NOTE 1. Do not touch the Pinch Roller. (Use gloves.) 2. When you install the Pinch Roller Block, install as shown in the circle of Fig. 2-11-B. (Refer to Fig. 2-11-B)
Fig. 2-11-B 2-12: A/C HEAD (Refer to Fig. 2-12-A) 1. Remove the screw 1. 2. Remove the A/C Head Base. 3. Remove the 3 screws 2. 4. Remove the A/C Head and A/C Head Spring. NOTE
(A)
1
T Reel
(A)
1
1. Do not touch the A/C Head. (Use gloves.) 2. When you install the A/C Head Spring, install as shown in Fig. 2-12-B. (Refer to Fig. 2-12-B) 3. When you install the A/C Head, tighten the screw (1) first, then tighten the screw (2), finally tighten the screw (3).
(1) (3)
2
2
Fig. 2-10 2-11: PINCH ROLLER BLOCK/P5-3 ARM ASS'Y (Refer to Fig. 2-11-A) 1. Remove the P5 Spring. 2. Remove the screw 1. 3. Unlock the 2 supports 2 and remove the Cassette Opener. 4. Remove the Pinch Roller Block, Pinch Roller Arm Spring, Pinch Roller Lever Ass'y and P5-3 Arm Ass'y.
1
P5 Spring
2
(2) A/C Head
A/C Head Spring
1
A/C Head Base · Screw Torque: 5.0 ± 0.5kgf·cm (Screw 1)
Fig. 2-12-A
2
Cassette Opener
2
P5-3 Arm Ass'y Pinch Roller Block Pinch Roller Arm Spring Pinch Roller Lever Ass'y Spring Position
Fig. 2-12-B
2-13: FE HEAD (RECORDER ONLY) (Refer to Fig. 2-13) 1. Remove the screw 1. 2. Remove the FE Head.
1
FE Head
Main Chassis
· Screw Torque: 5 ± 0.5kgf·cm
Fig. 2-11-A
· The FE Head is not installed on the Video Cassette Player. · Screw Torque: 4 ± 0.5kgf·cm
Fig. 2-13
B2-3
DISASSEMBLY INSTRUCTIONS
2-14: AHC ASS'Y/CYLINDER UNIT ASS'Y (Refer to Fig. 2-14) 1. Unlock the support 1 and remove the AHC Ass'y. 2. Remove the 3 screws 2. 3. Remove the Cylinder Unit Ass'y. NOTE When you install the Cylinder Unit Ass'y, tighten the screws from (1) to (3) in order while pulling the Ass'y toward the left front direction.
Pinch Roller Cam Joint Gear P5 Cam E-Ring Main Cam
1
Middle Gear
AHC Ass'y
Fig. 2-16-A
Cylinder Unit Ass'y
1
NOTE When you install the Pinch Roller Cam, P5 Cam and Main Cam, align each marker. (Refer to Fig. 2-16-B)
Pinch Roller Cam
Check the hole of Main Chassis can be seen.
P5 Cam
2 (1)
(2) 2 · Screw Torque: 3 ± 0.5kgf·cm
2
(3)
Fig. 2-14
Marker
Main Cam
2-15: CAPSTAN DD UNIT (Refer to Fig. 2-15) 1. Remove the Capstan Belt. 2. Remove the 3 screws 1. 3. Remove the Capstan DD Unit. Fig. 2-16-B
Capstan Belt Capstan DD Unit
2-17: CLUTCH ASS'Y (Refer to Fig. 2-17) 1. Remove the Polyslider Washer 1. 2. Remove the Clutch Ass'y, Ring Spring and Coupling Gear. 3. Unlock the 2 supports 2 and remove the Clutch Lever.
1
Clutch Ass'y
1
· Screw Torque: 5 ± 0.5kgf·cm
1 1
Fig. 2-15
Ring Spring
2-16: MIDDLE GEAR/MAIN CAM (Refer to Fig. 2-16-A) 1. Remove the Polyslider Washer 1, then remove the Middle Gear. 2. Remove the E-Ring, then remove the Main Cam, P5 Cam, Pinch Roller Cam and Joint Gear.
Coupling Gear
2
Clutch Lever
2
Fig. 2-17
B2-4
DISASSEMBLY INSTRUCTIONS
2-18: LOADING GEAR S/T ASS'Y (Refer to Fig. 2-18-A) 1. Remove the E-Ring 1 and remove the Main Loading Gear. 2. Remove the Capstan Brake Spring. 3. Slide the Main Rod and remove the Spring Holder. 4. Remove the Main Rod, Tension Lever, Clutch Actuator, Idler Arm Ass'y. 5. Remove the screw 2. 6. Remove the LED Reflecter. 7. Remove the Loading Arm S Ass'y and Loading Arm T Ass'y. 8. Remove the Loading Gear S and Loading Gear T. 9. Remove the Loading Gear Spring.
Capstan Brake Spring Spring Holder
2. When you install the Clutch Actuator, install as shown in the circle of Fig. 2-18-C. (Refer to Fig. 2-18-C)
Clutch Actuator
Fig. 2-18-C 2-19: INCLINED S/T ASS'Y (Refer to Fig. 2-19) 1. Remove the Cap P4. 2. Remove the screw 1. 3. Unlock the support 2 and remove the Loading Gear Holder. 4. Remove the Inclined Base S Unit. 5. Remove the Inclined Base T Unit. NOTE Do not touch the roller of Guide Roller.
1
1
Main Loading Gear Main Rod
Tension Lever Loading Gear T Idler Arm Ass'y
LED Reflecter
2
Loading Gear Spring Loading Arm T Ass'y Loading Gear S
Clutch Actuator
Loading Gear Spring
Loading Gear Holder Inclined Base S Unit
2
Inclined Base T Unit
Loading Arm S Ass'y
Cap P4 · Screw Torque: 5 ± 0.5kgf·cm
Fig. 2-18-A
NOTES 1. When you install the Loading Arm S Ass'y, Loading Arm T Ass'y and Main Loading Gear, align each marker. (Refer to Fig. 2-18-B)
Marker · Screw Torque: 2.5 ± 0.5kgf·cm Main Loading Gear
Fig. 2-19
Marker
Loading Arm T Ass'y
Loading Arm S Ass'y
Fig. 2-18-B
B2-5
KEY TO ABBREVIATIONS
A A/C ACC AE AFC AFT AFT DET AGC AMP ANT A.PB APC ASS'Y AT AUTO A/V B BGP BOT BPF BRAKE SOL BUFF B/W C C CASE CAP CARR CH CLK CLOCK (SYSE) COMB CONV CPM CTL CYL CYL-M D CYL SENS DATA (SY-CE) dB DC DD Unit DEMOD DET E DEV E EF EMPH ENC ENV EOT EQ F EXT F FBC FE FF FG FL SW FM FSC G FWD GEN H GND H.P.F : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : Audio/Control Automatic Color Control Audio Erase Automatic Frequency Control Automatic Fine Tuning Automatic Fine Tuning Detect Automatic Gain Control Amplifier Antenna Audio Playback Automatic Phase Control Assembly All Time Automatic Audio/Video Burst Gate Pulse Beginning of Tape Bandpass Filter Brake Solenoid Buffer Black and White Capacitance, Collector Cassette Capstan Carrier Channel Clock Clock (Syscon to Servo) Combination, Comb Filter Converter Capstan Motor Control Cylinder Cylinder-Motor Cylinder-Sensor Data (Syscon to Servo) Decibel Direct Current Direct Drive Motor Unit Demodulator Detector Deviation Emitter Emitter Follower Emphasis Encoder Envelope End of Tape Equalizer External Fuse Feed Back Clamp Full Erase Fast Forward, Flipflop Frequency Generator Front Loading Switch Frequency Modulation Frequency Sub Carrier Forward Generator Ground High Pass Filter I H.SW Hz IC IF IND INV KIL L LED LIMIT AMP LM, LDM LP L.P.F LUMI. M MAX MINI MIX MM MOD MPX MS SW NC NR OSC OPE PB PB CTL PB-C PB-Y PCB P. CON PD PG P-P R REC REC-C REC-Y REEL BRK REEL S REF REG REW REV, RVS RF RMC RY S. CLK S. COM S. DATA SEG SEL SENS SER SI SIF SO SOL SP STB SW : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : Head Switch Hertz Integrated Circuit Intermediate Frequency Indicator Inverter Killer Left Light Emitting Diode Limiter Amplifier Loading Motor Long Play Low Pass Filter Luminance Motor Maximum Minimum Mixer, mixing Monostable Multivibrator Modulator, Modulation Multiplexer, Multiplex Mecha State Switch Non Connection Noise Reduction Oscillator Operation Playback Playback Control Playback-Chrominance Playback-Luminance Printed Circuit Board Power Control Phase Detector Pulse Generator Peak-to Peak Right Recording Recording-Chrominance Recording-Luminance Reel Brake Reel Sensor Reference Regulated, Regulator Rewind Reverse Radio Frequency Remote Control Relay Serial Clock Sensor Common Serial Data Segment Select, Selector Sensor Search Mode Serial Input Sound Intermediate Frequency Serial Output Solenoid Standard Play Serial Strobe Switch
K L
M
N O P
R
S
C1-1
KEY TO ABBREVIATIONS
S SYNC SYNC SEP T TR TRAC TRICK PB TP U UNREG V V VCO VIF VP V.PB VR V.REC VSF VSR VSS V-SYNC VT X X'TAL Y Y/C : : : : : : : : : : : : : : : : : : : : : Synchronization Sync Separator, Separation Transistor Tracking Trick Playback Test Point Unregulated Volt Voltage Controlled Oscillator Video Intermediate Frequency Vertical Pulse, Voltage Display Video Playback Variable Resistor Video Recording Visual Search Fast Forward Visual Search Rewind Voltage Super Source Vertical-Synchronization Voltage Tuning Crystal Luminance/Chrominance
C1-2
SERVICE MODE LIST
This unit provided with the following SERVICE MODES so you can repair, examine and adjust easily. Method Press the ATR button on the remote control for more than 2 seconds during PLAY. Make the short circuit between the test point of SERVICE and the GND. Operations Adjusting of the Tracking to the center position. Refer to the "MECHANICAL ADJUSTMENT" (GUIDE ROLLER) and "ELECTRICAL ADJUSTMENT" (PG SHIFTER). The EOT/BOT/Reel sensor do not work at this moment. Refer to the "PREPARATION FOR SERVICING"
C2-1
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 Parts Name Audio Control Head Full Erase Head (Recorder only) Capstan Belt Pinch Roller Capstan DD Unit Loading Motor Tension Band Capstan Shaft Tape Running Guide Post Cylinder Unit : Clean : Replace Replace when rolling becomes abnormal. Clean the Head Clean those parts in contact with the tape.
Clean the rubber, and parts which the rubber touches.
500 hours
1,000 hours
1,500 hours
2,000 hours
3,000 hours
Notes
CLEANING
NOTE After cleaning the heads with isopropyl alcohol, do not run a tape until the heads dry completely. If the heads are not completely dry and alcohol gets on the tape, damage may occur. 1. AUDIO CONTROL HEAD Wrap a piece of chamois around your finger. Dip it in isopropyl alcohol and clean the audio control head by wiping it horizontally. Clean the full erase head in the same manner. (Refer to the figure below.) 2. TAPE RUNNING SYSTEM When cleaning the tape transport system, use the gauze moistened with isopropyl alcohol. 3. CYLINDER Wrap a piece of chamois around your finger. Dip it in isopropyl alcohol. Hold it to the cylinder head softly. Turn the cylinder head counterclockwise to clean it (in the direction of the arrow). (Refer to the figure below.) NOTE Do not exert force against the cylinder head. Do not move the chamois upward or downward on the head. Use the chamois one by one.
Audio Control Head
Cylinder Head
C3-1
SERVICING FIXTURES AND TOOLS
(For 2 heads model) VHS Alignment Tape JG001 (VN 2 S-LI6 3 ) JG001A (VN 2 S-CO13 ) JG001Q (VN 2 S-LI6 3 H) JG001T (VN 2 S-X6 3 ) (For 4 heads model) VHS Alignment Tape JG001B (VN 1 S-LI6 3 ) JG001I (VN 1 S-CO13 ) JG001P (VN 1 S-LI6 3 H) JG001S (VN 1 S-X6 3 )
JG002B Adapter JG002E Dial Torque Gauge (10~90gf·cm) JG002F (60~600gf·cm)
JG005 Post Adjustment Screwdriver Part No. SV-TG0-030-000 (small)
JG153 X Value Adjustment Screwdriver
JG022 Master Plane
JG024A Reel Disk Height Adjustment Jig
JG100A Torque Tape (VHT-063)
JG154 Cable
Tentelometer
Ref. No. JG001 JG001A JG001Q JG001T JG001B JG001I JG001P JG001S JG002B JG002E JG002F JG005 JG153 JG022/JG024A JG100A JG154
Part No. APJG001000 APJG001A00 APJG001Q00 APJG001T00 APJG001B00 APJG001I00 APJG001P00 APJG001S00 APJG002B00 APJG002E00 APJG002F00 APJG005000 APJG153000 APJG022000/APJG024A00 APJG100A00 APJG154000
Remarks Monoscope, 6KHz (For 2 heads model) Color Bar, 1KHz (For 2 heads model) Hi-Fi Audio (For 2 heads Hi-Fi model) X Value Adjustment (For 2 heads model) Monoscope, 6KHz (For 4 heads model) Color Bar, 1KHz (For 4 heads model) Hi-Fi Audio (For 4 heads Hi-Fi model) X Value Adjustment (For 4 heads model) VSR Torque, Brake Torque (S Reel/T Reel Ass'y) Brake Torque (T Reel Ass'y) VSR Torque, Brake Torque (S Reel) Guide Roller Adjustment X Value Adjustment Reel Disk Height Adjustment Playback Torque, Back Tension Torque During Playback Used to connect the test point of SERVICE and GROUND
PREPARATION FOR SERVICING
1. Short circuit between TP1001 and Ground with the cable JG154. (Refer to MAJOR COMPONENTS LOCATION GUIDE) The EOT, BOT and Reel Sensor do not work at this moment. At that time, the STOP/EJECT button is available to insert and eject the Cassette Tape.
C4-1
MECHANICAL ADJUSTMENTS
1. CONFIRMATION AND ADJUSTMENT
Read the following NOTES before starting work. · Place an object which weighs between 450g~500g on the Cassette Tape to keep it steady when you want to make the tape run without the Cassette Holder. (Do not place an object which weighs over 500g.) · When you activate the deck without the Cassette Holder, short circuit between TP1001 and TP1002. (Refer to ELECTRICAL ADJUSTMENT PARTS LOCATION GUIDE) In this condition the BOT/EOT/ Reel Sensor will not function. 1-1: CONFIRMATION AND ADJUSTMENT OF REEL DISK HEIGHT 1. Turn on the power and set to the STOP mode. 2. Set the master plane (JG022) and reel disk height adjustment jig (JG024A) on the mechanism framework, taking care not to scratch the drum, as shown in Fig. 1-1-A . 3. Confirm that "A" of the reel disk is lower than "B" of the reel disk height adjustment jig (JG024A) , and is higher than "C". If it is not enough height, adjust to 10(+0.2, -0) mm with the height adjustment washer. 4. Adjust the other reel in the same way.
Master Plane (JG022)
1-2: CONFIRMATION AND ADJUSTMENT OF TENSION POST POSITION 1. Set to the PLAY mode. 2. Adjust the Tension Adjust until the edge of the Tension Arm is positioning within 0.5mm range from the standard line center of Main Chassis. After this adjustment, confirm that the cut position is located in "A" area as shown in Fig. 1-2-B If it is located in "B" area, adjust again. 3. While turning the S Reel clockwise, confirm that the edge of the Tension Arm is located in the position described above.
Standard line of Main Chassis
Tension Arm 0.5mm (Adjusting range) Standard line center of Main Chassis Tension Adjust
Fig. 1-2-A
Reel Disk Height Adjustment Jig (JG024A)
(A) Cut Position
(B) Tension Adjust
Fig. 1-2-B 1-3: CONFIRMATION OF PLAYBACK TORQUE AND BACK TENSION TORQUE DURING PLAYBACK Fig. 1-1-A
Reel Disk Height Adjustment Jig (JG024A) (B)
Reel Disk
1. Load a video tape (T-120) recorded in standard speed mode. Set the unit to the PLAY mode. 2. Install the tentelometer as shown in Fig. 1-3. Confirm that the meter indicates 2 ± 2gf in the beginning of playback. · USING A CASSETTE TYPE TORQUE TAP E (JG100A) 1. After confirmation and adjustment of Tension Post position (Refer to item 1-2), load the cassette type torque tape (JG100A) and set to the PLAY mode. 2. Confirm that the right meter of the torque tape indicates 60~110gf·cm during playback in SP mode. 3. Confirm that the left meter of the torque tape indicates 25~40gf·cm during playback in SP mode.
Tentelometer
Master Plane (JG022)
10(+0.2, -0)mm (C)
(A) Height Adjustment Washer 2.6x4.7xT0.13 2.6X4.7xT0.25
Video Tape
Fig. 1-1-B
P1 Post
Guide Roller
Fig. 1-3 D1-1
MECHANICAL ADJUSTMENTS
1-4: CONFIRMATION OF VSR TORQUE 1. Operate within 4~5 seconds after the reel disk begins to turn. 2. Install the Torque Gauge (JG002F) and Adapter(JG002B) on the S Reel. Set to the Rewind mode (Refer to Fig.1-4) . 3. Then, confirm that it indicates 120~180gf·cm. NOTE Install the Torque Gauge on the reel disk firmly. Press the REW button to turn the reel disk. 1-5: CONFIRMATION OF REEL BRAKE TORQUE (S Reel Brake ) (Refer to Fig. 1-4) 1. Set to the STOP mode. 2. Move the Idler Ass'y from the S Reel. 3. Install the Torque Gauge (JG002F) and Adapter (JG002B) on the S Reel. Turn the Torque Gauge (JG002F) clockwise. 4. Then, confirm that it indicates 60~100gf·cm. (T Reel Brake ) (Refer to Fig. 1-4) 1. Set to the STOP mode. 2. Move the Idler Ass'y from the T Reel. 3. Install the Torque Gauge (JG002E) and Adapter (JG002B) on the T reel. Turn the Torque Gauge (JG002E) counterclockwise. 4. Then, confirm that it indicates 45~70gf·cm.
Torque Gauge/Adapter (JG002F/JG002B)
2. CONFIRMATION AND ADJUSTMENT OF TAPE RUNNING MECHANISM
Tape Running Mechanism is adjusted precisely at the factory. Adjustment is not necessary as usual. When you replace the parts of the tape running mechanism because of long term usage or failure, the confirmation and adjustment are necessary. 2-1: GUIDE ROLLER 1. Playback the VHS Alignment Tape (JG001 or JG001B). (Refer to SERVICING FIXTURE AND TOOLS) 2. Connect CH-1 of the oscilloscope TP4001 (Envelope) and CH-2 to TP1002 (SW Pulse). 3. Press and hold the Tracking-Auto button on the remote control for more than 2 seconds to set tracking to center. 4. Trigger with SW Pulse and observe the envelope. (Refer to Fig. 2-1-A) 5. When observing the envelope, adjust the Adjusting Driver (JG005) slightly until the envelope will be flat. Even if you press the Tracking Button, adjust so that flatness is not moved so much. 6. Adjust so that the A : B ratio is better than 3 : 2 as shown in Fig. 2-1-B, even if you press the Tracking Button to move the envelope (The envelope waveform will begin to decrease when you press the Tracking Button). 7. Adjust the PG shifter during playback. (Refer to the ELECTRICAL ADJUSTMENTS) NOTE After adjustment, confirm and adjust A/C head. (Refer to item 2-2)
CH-1 Envelope (TP4001)
Torque Gauge/Adapter (JG002E/JG002B)
CH-1 Track CH-2 SW Pulse (TP1002)
CH-2 Track
S Reel
Envelope
T Reel
(1)
Fig. 1-4 NOTE If the torque is out of the range, replace the following parts. Check item 1-4 1-5 Replacement Part Idler Ass'y/Clutch Ass'y
CH-3 Audio (2)
Fig. 2-1-A
Entrance
Exit
Max
T Brake Spring/Tension Spring
A
B
Max
A : B 3 : 2
Fig. 2-1-B
D1-2
MECHANICAL ADJUSTMENTS
2-2: CONFIRMATION AND ADJUSTMENT OF AUDIO/CONTROL HEAD When the Tape Running Mechanism does not work well, adjust the following items. 1. Playback the VHS Alignment Tape (JG001 or JG001B) . (Refer to SERVICING FIXTURE AND TOOLS) 2. Confirm that the reflected picture of stamp mark is appeared on the tape prior to P4 Post as shown in Fig. 2-2-A . a) When the reflected picture is distorted, turn the screw 1 clockwise until the distortion is disappeared. b) When the reflected picture is not distorted, turn the screw 1 counterclockwise until little distortion is appeared, then adjust the a). 3. Turn the screw 2 to set the audio level to maximum. 4. Confirm that the bottom of the Audio/ Control Head and the bottom of the tape is shown in Fig. 2-2-C. c) When the height is not correct, turn the s 3 to adjust the height. Then, adjust the 1~3 again.
Audio/Control Head Reflected picture of Stamp Mark P4 Post
2-3: TAPE RUNNING ADJUSTMENT (X VALUE ADJUSTMENT) 1. Confirm and adjust the height of the Reel Disk. (Refer to item 1-1) 2. Confirm and adjust the position of the Tension Post. (Refer to item 1-2) 3. Adjust the Guide Roller. (Refer to item 2-1) 4. Confirm and adjust the Audio/Control Head. (Refer to item 2-2) 5. Connect CH-1 of the oscilloscope to TP4001, CH-2 to TP1002 and CH-3 to HOT side of Audio Out Jack. 6. Playback the VHS Alignment Tape (JG001S or JG001T) . (Refer to SERVICING FIXTURE AND TOOLS) 7. Press and hold the Tracking-Auto button on the remote control for more than 2 seconds to set tracking to center. 8. Set the X Value adjustment driver (JG153) to the 4 of Fig. 2-2-B. Adjust X value so that the envelope waveform output becomes maximum. Check if the relation between Audio and Envelope waveform becomes (1) or (2) of Fig. 2-1-A. 2-4: CONFIRM HI-FI AUDIO (Hi-Fi model only) 1. Connect CH-1 of the oscilloscope TP4001, CH-2 to TP1002 and CH-3 to the Hi-Fi Audio Out Jack. 2. Playback the VHS Alignment Tape (JG001P or JG001Q). (Refer to SERVICING FIXTURE AND TOOLS) 3. Press and hold the Tracking-Auto button on the remote control for more than 2 seconds to set tracking to center. 4. Press the Tracking Up button and count number of steps which the audio output is changed from Hi-Fi (10KHz) to MONO (6KHz). 5. Press the Tracking Down button and count number of steps which the audio output is changed from Hi-Fi (10KHz) to MONO (6KHz). 6. Confirm that the difference between these counted steps number in the above items are within 2 steps. If the difference are more than 3 steps, do Tape Running Adjustment again. (Refer to item 2-3)
Stamp Mark
Fig. 2-2-A
Audio/Control Head
3
1
2 4
Fig. 2-2-B
Audio/Control Head Tape
0.25±0.05mm
Fig. 2-2-C
D1-3
MECHANICAL ADJUSTMENTS
3. MECHANISM ADJUSTMENT PARTS LOCATION GUIDE
5
6
4
3 7 2 1 8
10
9
1. Tension Adjust 2. Tension Arm 3. Guide Roller 4. P1 Post 5. Audio/Control Head
6. X value adjustment driver hole 7. P4 Post 8. T Brake Spring 9. T Reel 10. S Reel
D1-4
ELECTRICAL ADJUSTMENTS
Read and perform this adjustment when repairing the circuits or replacing electrical parts or PCB assemblies.
1. BASIC ADJUSTMENT
CAUTION When replacing IC's or transistors, use only specified silicon grease (YG6260M). (To prevent the damage to IC's and transistors.) 1-1: PG SHIFTER CONDITIONS MODE-PLAYBACK Input Signal-Alignment Tape (JG001B) INSTRUCTIONS 1. Connect CH-1 on the oscilloscope to TP1002 and CH-2 to TP4201. 2. Playback the alignment tape. (JG001B) 3. Press and hold the Tracking-Auto button on the remote control more than 2 seconds to set tracking to center. 4. Adjust the VR1001 until the waveform of the oscilloscope measures 6.5 ± 0.5(H) at both leading and trailing edges. (Refer to Fig. 1-1-A, B)
CH-2
6.5H
CH-1
Fig. 1-1-A
CH-2
CH-1 6.5H
Fig. 1-1-B
D2-1
ELECTRICAL ADJUSTMENTS
2. ELECTRICAL ADJUSTMENT PARTS LOCATION GUIDE
J4205 TP1001 J4203
T501
VR1001
TU6001 TP4001 TP1002
TP4201 J4201
SYSCON PCB
D2-2
Y/C/AUDIO/CCD/HEAD AMP BLOCK DIAGRAM
X4001 3.579545MHz
Q4012
Y/C/AUDIO/CCD/HEAD AMP IC IC4001 LA71200M-MPB
50 VX01 TIMMING 67 L H 66 CP4001 1 2 CYL 3 4 5 6 EP/LP-CH2 (L) EP/LP_COM EP/LP-CH1 (R) SP-CH2 (L) SP_COM SP-CH1 (R) 73 H 74 H.SW L FM AGC DELAY PB FM-EQ PB PHASE-EQ 9 7 CP4003 FE HEAD 1 FE HEAD (HOT) 2 FE HEAD (GND) 8 AUTO BIAS 6 PB.EE 11 CP4002 6 AUDIO PB 5 HEAD AUDIO CONTROL 4 3 2 1 AUDIO REC CTL+ CTL6 3 Q4006 BIAS OSC 4 Q4001, Q4002 AUDIO PB SW 1 Q4003 SW COIL, BIAS OSC T4001 5 2 5 4 EQ AMP REC AMP 65 72 H H.AMP SW L P R AGC AMP H.SW 49
BUFFER
Q4010 BUFFER 39 OUT SERIAL CCD FM MOD WC DC CLAMP NL EMPHA V/I CONV Y-LPF R B-UP AMP Main CONV P R KIL B.D. 3.58M BPF1 PB AMP 3.58M BPF2 R YNR/ COMB N.L. DEEM NC1 Y/C MIX VCA CLAMP 36 34 DETAL ENH P P 21 DECODER 37 55 54 53 Y/C_CS Y/C_DATA Y/C_CLK
SYSCON/SERVO/ TIMER/DECK
41 PULL DRIVER REC FM-EQ KIL C-LPF
CLAMP
22
GCA R P
ACC AMP
H.AMP SW/ 58 AUDIO MUTE 1/2 FBC C ROT RF SW IN 57
H.AMP_SW C.ROTARY H.SW
DOUBLE LIM
FM DEM LINE AMP LPF P R ALC DET MUTE ALC
SUB LPF V-AGC
P
AUDIO_MUTE-H
SYSCON/SERVO/ TIMER/DECK
R ENV DET Chara INS. 59
ENV.DET
P
R
CONP 60 OUT 24 26
COMP
DUMMY_V.SYNC
6dB SYNC SEP 80 78 76 NC 32 30
OSD_V
3
2
10
FSC
FRONT_V_IN TUNER_V TUNER_A FRONT_A_IN-L FROM_NORMAL_A TUNER
Q4005 BIAS CTL
AE HEAD (-) AE HEAD (+)
P.CON + 5V
V.REC_ST-H CTL+ CTL-
SYSCON/SERVO/ TIMER/DECK
E-1
E-2
SYSTEM CONTROL/SERVO/TIMER/DECK BLOCK DIAGRAM
SYSCON/SERVO/TIMER IC IC1001 OEC8071A
63 SENS LED Q1003 Y/C CLK 14 81 MS SEN-A 2 MS_SEN B Q1004 3 4 3 4 1 2 1 MS_SEN A Q1005 80 MS SEN-B Y/C CS 15
Y/C_CLK Y/C_CS Y/C_DATA DUMMY_V.SYNC
C.ROTARY
AT + 5.2V
SENSOR SW
Y/C DATA 16 DUMMY V.SYNC 24 C.ROTARY 98 CV IN 49
OSD V CTLCTL+
H.AMP SW COMP Y/C/AUDIO/CCD/ HEAD AMP
P.SAVE_OFF_5V D1001
DECK PCB
REEL SENSOR Q1002
CTL(-) 75 CTL(+)
H.AMP SW 4 3 REEL-T 74 99
2
3 4
COMP 100 VIDEO ENV DET 83 H.SW 23
EOT SENSOR Q1006
1
REEL-S
ENV.DET H.SW
V.REC ST-H AUDIO MUTE-H
79 EOT BOT SENSOR Q101 CP1003 1 VCC 2 BOT 3 LDM4 LDM+ 78 BOT
V.REC ST-H
59
AUDIO MUTE-H 60
CYL/LOADING MOTOR DRIVER IC1002 LB11880
13 X OUT 15 Y OUT
34 DRUM PWM
LOADING MOROTOR M
VC 2
61 CYL.SPEED UP
CP1001 1 U-OUT MICRO MOTOR 2 3 4 6 V-OUT W-OUT M-COM PG OUT
16 U OUT 17 V OUT PG OUT2 7 18 W OUT
19 M COM 6 5 PG OUT1 PG IN(-)
66 DPG 65 DFG
BFG0 8
X IN 11 Y IN 12
96 LDM RVS-H
97 LDM FWD-H
32 CAP FULL
IIC CLK
18
IIC_CLK IIC_DATA AFT-S.CURVE
TUNER
7 PG GND CP1002 3 I LIMIT CAPSTAN DD UNIT 4 CTL 6 CAP FG 7 CAP/M/F/R 1G/TV/VCR_LED 2G/T-REC_LED 3G/REC_LED
4 PG IN(+)
33 CAP PWM 21 CAP LIMIT 67 FGF 46 CAP FWD-L
IIC DATA 17 AFT S.CURVE 82
VCR-H(TV/VCR) CV OUT
27 47
TV/VCR VIDEO_OUT
90 1G/TV/VCR LED 91 2G/T-REC LED 92 3G/REC LED 93 4G 94 5G
7 8
RF CH SW
29
RF_CH_SW
4G 5G
SEG_1 SEG_2 SEG_3 SEG_4 OPERATION SEG_5 SEG_6 SEG_7 SEG_8 SEG_9 SEG_10
POWER ON-H POWER FAIL-H
58 1 Q1007, Q1014
POWER_ON-H POWER_FAIL
POWER
SEG 1 SEG 2 RESET 25 OSC I 37 OSC 0 38 RESET SW
9 SEG 3 10 SEG 4 11 SEG 5
12 SEG 6 13 SEG 7 19 SEG 8
AT + 5V (M-CON)
X1001 14.31818MHz
TAB SW 31
SW1001
20 SEG 9 22 SEG 10 87 KEY-A 86 KEY-B 5 REM IN
C0 76 FF/REW-L 62 Q1010 FF/REW SW
KEY-A
KEY-B
REM_IN
E-3
E-4
TUNER BLOCK DIAGRAM
REAR OUT JACK J4201 2 Q4201
SYSCON/SERVO/ TIMER/DECK
FRONT AV JACK VIDEO J4203 2 2 FRONT AV JACK MONO AUDIO J4205
3
VIDEO_OUT
BUFFER
P.CON + 12V
FRONT_V_IN
FSC FROM_NORMAL_A FRONT_A_IN-L
TUNER_V TUNER_A TU6001 6 2
Y/C/AUDIO/CCD HEAD AMP
15
3 5 11 12 21 RF_CH_SW TV/VCR IIC_CLK IIC_DATA SYSCON/SERVO/ TIMER/DECK
23 24
AFT-S.CURVE
E-5
E-6
POWER BLOCK DIAGRAM
T501 10 +32V
5 2 4
7
P.CON +12V
8 6 IC501 KIA431
Q506 P.CON +5V SW
P.CON + 5V
D505, D508, D523, D528 Q503 SW Q502 CONTROL Q511 PHOTO COUPLER
VOLTAGE CTL IC 1 2
Q508 P.ON SW Q515
Q505 PHOTO COUPLER
M-CON B+ SW
AT +5V(M-CON)
POWER_ON-H
L501
POWER_FAIL
SYSCON/SERVO/ TIMER/DECK
F501
AC IN
E-7
E-8
OPERATION BLOCK DIAGRAM
V651 LTG-Y2K22M-J
15 14 13 12 11 10 9
8
7
6
5
4
3
2
1
Q651
5G SW Q652 SEG10 SW
5G SEG_10 SEG_9 Q654 4G SW 4G SEG_8 Q656 SEG7 SW SEG_7 SEG_6 Q658 SEG5 SW SEG_5
3G/REC_LED
Q653 SEG9 SW
Q655 SEG8 SW
Q657 SEG6 SW
SYSCON/SERVO/ TIMER/DECK
Q659 3G SW
Q660 SEG4 SW Q661 2G SW Q662 SEG3 SW Q663 SEG2 SW Q664 SEG1 SW Q665 1G SW
1G/TV/VCR_LED 2G/T-REC_LED
SEG_4
SEG_3 SEG_2 SEG_1
CH UP CH DOWN
CP601
KEY-A STOP/EJECT REC/OTR FF/CUE PLAY REW/REV POWER KEY-B
1 2
CP651 4 3 KEY-A KEY-B
SYSCON/SERVO/ TIMER/DECK
OS651
1
REM_IN
E-9
E-10
S105
S106
SOLDER SIDE
DECK
CP101
S104
S103
Q101
S101
S102
D523 C514 CP651_1 B502 D511 R514 C509 D528 F501 FH502 FH501 T501 Q503_1 R512 S501
D512
B501
C512
Q502
R511
W826
D514 D502 C505 D520 W006 Q511 D507 IC501 Q505 D505 D506
R5 02
SW659
D521
C519 R534 L501
R547
49 R5
C518 CP1003 W014 W032 R548 D501
R537
W007
D525 W862 W015 W820 W003 W822 W004 W001 R509 Q1004 W012 W819 W019 L504 C520 W039 W038 CP1001 SW660
05
C
R1001 R1007 W022 W021 W034 R1058 W847 W036 W033 R1038 R1022 W031 W010 W024 W030 R1069 W028
0 P1
02
W037
L505 W005 R1050 W837 W838
PRINTED CIRCUIT BOARDS
W018
W016
W009 W002 W845 W013 IC1002 C522 W835 R530 W860 C1064_1 W035 W840 W075 W085 W079 W077 W062 W072 W088 W052 W060 W080 T4001 R1040 W081 W073 W064 R1053 W801 W068 W045 W163 W066 W067 W095 L4004 W083 C4050 C4053 C4044 C4049 R4047 W098 W108 W853 X1001 W092 D1010 C1041 R1066 C1021 W159 TP1001 W091 C1023 W114 W120 W115 R1052 W119 W123 W135 W094 W105 L4005 W099 W103 W101 W102 W111 W104 W843 C4052 R4033 C4051 C4048 C4059 R4020 C4058 C4046 C4030 C4027 C4034_1 C4035 W100 W161 C4045 W061 Q4005 L4003 Q4001 W082 W053 R1060 W830 C1058 W828 W058 W059 W040 W047 W158 W043 W044 W818 W070 W063 Q4006 C1022 R4004 C4002
W056
R521
SYSCON/OPERATION (INSERTED PARTS)
OS651 W051 W055 W057 Q515
W046
Q1002
C1024
W833
C1025
Q506
W049
0 Q1
S502
W087 C4004 W086 Q4002
SOLDER SIDE
C4010 C4031
W048
D
R1041
10
01
W109 W090 W089
V651
W160
C4067
C4012 C4065
C4062
C4070
X4001
W112
W124
C4063 L4006 W133
L4001
C4009
W116
W851 W852
R1019
W128 SW608 W129 SW606_1
CP4003
SW1001
L6002 W121 C6010 W137
W118
J4205_1
SW605
SW607
W844
TP4001
TP1002
W162
CP4001
C4013
R604 SW604_1
SW603_1
Q1006
L6003
R4201
W813
W146
R6010
Q4201
W816
C4209
TP4201
W155
CP601_1 J4203 TU6001 W142 W141
C6003_1 W152
C4201
W154 C4211 VR1001
R6004
W811
J4201_1
W803
C4014
CP4002
F-1
C
C502 D508 C504
F-2
1.6A125VOR250V
50
8
F-3
C506 C534 C507 C529 R524 R1003 R506 R510 R516 C515 C1060 R527 R518 R531 Q508 R1006 Q1003 R1087 R544 R1083 R519 C1013 R1047 R4044 R4001 R4046 R1017 R1015 C1020 C1029 R1062 C1040 R675 Q1010 C1015 Q665 R1013 C1018 R671 R1027 C1037 76 R1028 C4054 C1048 C1046 C1044 51 IC1001 1 Q661 Q659 R669 Q662 Q663 Q660 Q658 R674 R673 R672 R670 Q664 26 R666 R668 R665 R667 R663 Q1007 C1016 C1017 Q1014 R1046 Q656 Q655 R662 Q654 R4209 Q653 Q652 Q651 R1051 Q657 R664 R661 R1044 R1045 R605 R601 R603 R602 R4202 R4210 R6006 C6002 C6009 R6005 R4045 R1016 C4006 R4010 C4005 R1026 C1038 C4024 R4002 C4038 R4025 R4050 R4006 R4003 Q4003 C4036 R4023 R4024 C4037 C4033 R4021 R4022 R4011 C4032 R4019 C4029 R4017 R4018 C4028 R1059 R1002 R1033 C1052 C1051 R1034 C1054 C1053 R1032 R1037 R1039 R1043 R1042 C6014 C4204 R4205 R607 R1011 R4213 R1061 R1004 C1007 C1006 C1004 C1003_1 R1010 R1014 C1011 C4021 R4007 R4014 Q4010 R4035 R4034 41 R4043 C4061 R4038 C4060 C4066 Q4012 C4064 R4041 R4039 C4069 C4019 C4016_1 R4042
SOLDER SIDE
PRINTED CIRCUIT BOARDS SYSCON (CHIP MOUNTED PARTS)
21 R4016 C4020 1 IC4001 61 R4012 C4015
F-4
A
B
C
D
E
F
G
H
Y/C/AUDIO/CCD/HEAD AMP SCHEMATIC DIAGRAM
8
H.AMP_SW AUDIO_MUTE-H COMP C.ROTARY P.CON+5V Y/C_DATA ENV.DET H.SW Y/C_CLK Y/C_CS
(SYSCON PCB)
P.CON+5V
8
R4046
22K
L4005
12K 1/4W
R4047
L4006
R4045
47uH 0305
12K
BUFFER Q4012 2SC2412K R4041 3.9 5.0 1.8K 50V 1 KA 6.3V 47 KA 3.3
R4044
22K
47uH 0305
C4063
R4043
0.1
P.CON+5V GND
C4070
C4060
3.3K
7
0.01 B
FROM POWER F
FSC
7
FROM/TO TUNER FSC FRONT_V_IN W843
C4062
50V 1 KA
C4069
0.022 B
C4064
C4065
C4058 6.3V 47 KA C4059 0.022 B 0.1 F R4038 50V 1 KA 680K C4061 0.01 B
F
0.1
FRONT_A_IN-L TUNER_V TUNER_A FROM_NORMAL_A
R4039
8.2K
2 R4042 3.579545MHz
1.5K
C4066
6
0.2 60 C4016_1 0.068 B C4019 C4015 FROM/TO CYL CP4001 TOC-C09X-A1 9 8 7 6 5 4 3 2 1 SP-CH1 (R) SP_COM SP-CH2 (L) EP/LP-CH1 (R) EP/LP_COM EP/LP-CH2 (L) 2.0 72
P R P H L
X4001
C4067
6
5.0 0 44 43
4Fsc PLL OUT AUTO-BIAS VSS CLAMP
2.6 59
0 58
0 57
0 56
0.1 55
5.0 54
5.0 53
5.0 52
C-VCC
0 51
2.6 50
3.9 49
VX01
3.4 48
0.3 47
SLD
0 NC 5.0 46
B
2.2 42
0.8 41
CLOCK 0 VSS
45
1.9 61 0 62 4.0 63 1.6 64 0.7 65
R4033
OUT ENV COMP DET KILL DET HA GND CHROMA DET ACC DET P R
AUDIO C-ROT C-GND MUTE RF-SW HA SW IN
SERAIL DECODER
320FH VCO P R REC AFC
40
ALWAYS VDD 5V
TIMMING DRIVER CCD BGA BGA CNC PB AMP B.D P
39
1.5 0
BUFFER Q4010 2SA1037AK 1.5 0 2.1
2.2K 1/4W
FROM/TO SYSCON/SERVO/TIMER Y/C_CLK Y/C_CS R4034 Y/C_DATA R4035 100K DUMMY_V.SYNC V.REC_ST-H C.ROTARY AUDIO_MUTE-H OSD_V 82K
OUT
0.047 F
38 2.6 37 0.1 36 3.1 35 3.0
IN
REC APC
PB APC
0.047 F
R P
BEFORE AFTER
C4048 50V 1 KA C4052 C4049 50V 1 KA 50V 1 KA C4053 50V 1 KA
66
5
0.7 NC NC NC P.CON+5V L4001 +-1% 22uH 0305 C4009 6.3V 47 KA C4013 0.7 67
P H L C-LPF Main CONV P R 3.58M BPF2 B-UP AMP
BGA R P
VCA VCA CLAMP VCP
1 2 3
5
5.0 68
HA VCC
34 2.6 33 2.3 32 4.0
REG 4V
CTLCTL+ TUNER_V H.AMP_SW COMP ENV.DET FRONT_V_IN H.SW
0.1 69
P
+
0.1 B
R4012
ACC AMP ACC DET
R PB-C
3.58M BPF1
0.2 70 0 71
HA PRE GND
820
C4054 0.1 C4050 50V 1 KA C4051 6.3V 22 KA W801 1 OSD_V F
4.21M BPF Sub CONV
YNR/COMB
P R
VIDEO AGC R
31 2.3 30 2.3 29 2.3 NC 1.6 1.7 28
DETAIL ENH NL EMPHA
P R CLAMP P NL EMPHA FM MOD R-EQ TEST NORMAL DOUBBLE LIM Y-LPF R
2.0 73
N.L. DEEM PB-C NC1 Y/C MIX
1/2 FBC
R P R P
BAL TC1
4
2.0 74 0 75
A-GND 1 2 3 A-VCC ALC DET PB,EE EQ AMP SP,LP PB,EE REC:LP
4
AGC TC2 6DB
76
25 0
TUNER_A P.CON+5V FRONT_A_IN-L C4012 6.3V 22 KA R4004 15 1/4W
R4007 47K R4006 47K C4014 6.3V 22 KA
C4020 0.1 F C4021 0.1 F
2.3
R P LPF
FM DEM
SUB LPF MAIN DE-EM
QV/QH SYNC SEP V.SYNC SEP
26 0.4 NC
4.9 77 2.3 78 0 79 2.3 NC
LINE AMP
24
REC FM-EQ PB FM EQ S-EQ P R VHS SOPB
27
DUMMY_V.SYNC L4004 C4046 50V 1 KA 6.3V 100 YK 22uH 0305 P.CON+5V
5.0
P R Y-VCC
4.7K
R4014
R4016
4.7K
5.6K
0.0027 B
0.1 F
C4028
C4032
R4022
FROM/TO HEAD AUDIO CONTROL CP4002 IMSA-9604S-06Z13 6 5 4 3 2 1 AUDIO PB AUDIO REC CTL+ CTLAE HEAD(-) AE HEAD(+) CTL+ CTL-
R4018 R4017
8.2K
6.3V 33 KA
25V 4.7 KA
50V 1 KA
C4034_1
V.REC_ST-H
0 5.0
8.2K
R4024
R4001 560 AUDIO PB SW Q4001 KTC3198-AT 0 (Y,GR) 0 0.7 R4002 10K C4002 5
6 5 4
1 2 3 0.01 B R4010 C4005 3.3K
C4030
0 BIAS OSC 0 Q4006 KTC3203_Y-AT
16V 10 KA
2
100uH 0 0305 5.0
5.0 R4011 22K C4010 470P CH
0.01 B
180P CH
C4038
330K C4029
50V 1 KA
COIL,BIAS OSC T4001 1626009
C4031
BIAS CTL Q4005 L4003 KTA1266-AT(Y,GR)
R4019
0.001 B
2.2K
0.1 F
C4037
SW Q4003 KRA103RTK
C4027
22K C4033
C4035
R4025
1.8K R4050
68K
5.0
C4036
R4021
390P B
P.CON+5V
R4023
33K
Y/C/AUIO/CCD/HEAD AMP IC IC4001 LA71200M-MPB
2.3
2.3
2.3
2.3
2.3
2.3
0.1
2.3
2.3 820
0
0
1.7
1.6
0
2.4
C4044
0.1 B C4045
3
Vref 2.3V
AUTO PHASE PHASE EQ EQ BIAS fo-ADJ Q-ADJ
FM AGC FIL
Y-GND
MAIN EMPHA S DET FIL
80
B
21
22 1.6
23 2.9
1
2
3
4
5
6
7
8
9
10
11 0
12 0
13
14
15
17 18 16 0 2.5 NC 0
19
20
3
2
4 FROM_NORMAL_A 3 V.ENV TP4001 NC
6.3V 220 YK
100V 0.022 MKT
C4006
0 0.7 0
10K
2 1
FE HEAD(GND) FE HEAD(HOT)
GND HOT
C4024
CP4003 TMC-T02X-E1
R4020
R4003
6.3V 47 KA
220 1/4W
0.015 B
TO FE HEAD
AUDIO PB SW Q4002 KTC3198-AT (Y,GR)
C4004
0
1
NOTE: THIS SCHEMATIC DIAGRAM IS THE LATEST AT THE TIME OF PRINTING AND SUBJECT TO CHANGE WITHOUT NOTICE
NOTE: THE DC VOLTAGE AT EACH PART WAS
MEASURED WITH THE DIGITAL TESTER DURING PLAYBACK
CAUTION: DIGITAL TRANSISTOR
RECORD COLOR SIGNAL RECORD LUMINANCE SIGNAL AUDIO SIGNAL(REC) AUDIO SIGNAL(PB) PLAYBACK COLOR SIGNAL PLAYBACK LUMINANCE SIGNAL TUNER VIDEO SIGNAL
F G
PCB010 VMX206
1
A
B
C
D
E
H
G-1
G-2
A
FROM/TO POWER P.CON+5V AT+12.6_V CAP_VCO AT+5V[M-CON] AT+5.2V P.SAVE_OFF_5V POWER_FAIL MODE_VCC
B
C
D
E
F
G
H
SYSTEM CONTROL/SERVO/TIMER SCHEMATIC DIAGRAM
(SYSCON PCB)
FROM/TO Y/C/AUDIO/CCD/HEAD AMP FF/REW SW Q1010 KRC103RTK 5.1 0 0.027 B C1015 0 11 W830 Y/C_CLK CYL_SPEED_UP AUDIO_MUTE-H POWER_ON-H Y/C_CS Y/C_DATA DUMMY_V.SYNC V.REC_ST-H C.ROTARY C1038 0.0022 Y R1026 100 16V 10 KA C1037 1 F C1040 0.01 B C1041 6.3V 47 KA C1044 0.1 F R1053 15 1/4W C1048 C1046 1 F R1028 3.3K P.CON+5V FROM/TO TUNER IIC_CLK 100P CH OSD_V IIC_DATA AFT-S.CURVE TV/VCR VIDEO_OUT 2.1 0 0 0 0 0 0 0 0 C1016 0.1 F 2.5 2.6 5.1 5.1 NC 2.6 2.7 2.7 5.1 5.1 NC 4.4 5.1 5.1 2.6 NC 47K R1043 R1042 47K H.SW TP1002 R1034 56K C1053 0.022 B 8 R1033 1M C1051 10P CH X1001 14.31818MHz C1052 10P CH NC R1032 NC 47K NC NC NC VIDEO_OUT CAP_F/R RF_CH_SW AUDIO_MUTE-H OSD_V CTLCTL+ H.AMP_SW COMP ENV.DET H.SW SEN_LED V.REC_ST-H CYL_PG CAP_FG CYL_FG
8
8
R1022
1K 1/4W
7
AT+5V[M-CON] CTL+ 0.001 Y R1014 AT+12.6_V CTLC1013 6.8K R1015
16V 10 KA
C1022
POWER_ON-H (S/S) GND (CAP) GND (CYL/LDM) GND
W847 9
C1018
C1020
0.01 B
0.1 F
W860
7
6.3V 33 KA
560 C1024 R1017 560
C1025
W828
R1027
IC1002 0 30 GND PC OUT VCO IN CX C2 C1 W IN V IN U IN VCC RF M COM W OUT V OUT U OUT
LB11880 1.0 FC VC VREG PG IN(+) PG IN(-) PG OUT1 PG OUT2 BFGO LVCC VREF X IN Y IN X OUT LGND Y OUT 1 2.6 C1011 0.1 F CYL_DRIVE R1013 P.CON+5V BOT 2.6 4 PGIN+ PGINR1010 10K EOT MS_SEN-B MS_SEN-A AFT-S.CURVE CYL_PG CYL_FG W819 AT+12.6_V KEY-B KEY-A 12.5 10 ENV.DET 22K P.SAVE_OFF_5V
0.01 TF R1062
0.0056 B
POWER ON-H
VDD2
AVDD
VRO
DPG
AUDIO MUTE-H
CTL.AMP
AVSS
SENS.LED
OTPB LED
FF/REW-L
CYL.SPEED UP
A_MUTE-H/P.OFF-H
4FSC LPF
AFC LPF
AFC PC
CTL(+)
CTL(-)
DFG
CFG
VRI
V.REC ST-H
28
3
27
79
80
26
5
MS SEN-B MS SEN-A AFT S.CURVE VIDEO ENV.DET Hi Fi ENV.DET ST SEL KEY-B KEY-A INIT POWER ON-L 1G/TV/VCR LED 2G/T-REC LED 3G/REC LED 4G 5G POWER SAVE-H LDM RVS-H LDM FWD-H POWER FAIL-H JUST CLOCK ACTIVE ON-L CAP LIMIT 98 C.ROTARY 99 H.AMP SW 100 COMP 28 SERVICE 27 VCR-H(TV/VCR) 26 Hi Fi H.SW SYSCON/SERVO/TIMER IC IC1001 OEC8071A 76 CO 77 TPZ 50 C.SYNC 49 CV IN
CAP FWD-L VIDEO MUTE-H RENTAL-H CASSETTE IN-L SX 1 XO XI VSS OSC O OSC I VDD TUNER-L DRUM PWM CAP PWM CAP FULL TAB SW AUDIO OUT MUTE L RF CH SW DUMMY V.SYNC
0.0022 Y C1007 0.0022 Y
81
0.9 25 4.2 NC 4.2 NC 4.2 NC
2.6 6 0.1 24 7 2.4 23 8 12.5 22 9
82
83
W833 W835
85
86
21
20
11
LDM.R 1G/TV/VCR_LED LDM.F 2G/T-REC_LED 3G/REC_LED 4G 5G
90
36
NC 4.6 4.6 4.6 4.6 4.6
89
37
0 3.3 19 3.3 18 3.3 17 3.3 16 1 1/4W 1 1/4W
0.1 0.1 12 0.6 13 0 14 0.6 15
0
88
38
5
12.5
87
39
5.2 4.1
40
5.2
41
0
84
42
3.4
43
2.8
44
2.4
45
1.5
46
0.022 B C1006
EOT
CV OUT
0.7
2.6
1.4
47
6
0.1 F C1004
78
1.0
BOT
VSS2
48
0 0
77
49
C1003_1
3.7
5.0
0
4FSC IN
R1004
560K
PG ADJ VR1001 470K
FGF
29
76
50
2
390K
PGMM
3.7
NC NC NC 2.5 2.5 5.1 2.5 0 2.5 2.5 0 2.3 0.1 2.4 4.9 1.3 0 0 0 0 5.1 0 0 0 0 2.4 2.6 4.8 75 74 73 72 71 70 69 68 67 66 65 64 63 62 61 60 59 58 57 56 55 54 53 52 51 2.5 2.5 1.8 0
2.2K
CYL/LOADING MOTOR DRIVER
C1058
C1029
6
5
AT+5V[M-CON] R1039 5.6K
91
35
M-COM W-OUT V-OUT U-OUT R1007 R1001
92
34
R1037 56K R1038
CYL_DRIVE FROM/TO OPERATION CONTROL_IN R1040 CYL_SPEED_UP
93
94
32
33
96
30
LDM.R LDM.F C.ROTARY H.AMP_SW
0 NC 0 0 0 0 0 R1047 R1046 10K
10K 1/4W REC SAFTY SW 4 3 1 2
95
31
C1054 0.1 F
REM_IN KEY-B KEY-A 1G/TV/VCR_LED 2G/T-REC_LED 3G/REC_LED 4G 5G SEG_1 SEG_2 SEG_3 SEG_4 SEG_5
1M 1/4W
4
97
29
SW1001 SPVF130100
SERVICE TP1001 NC TV/VCR
4
98
Y/C DATA
IIC DATA
100 99
Y/C CLK
REEL-S
REM IN
IIC CLK
REEL-T
Y/C CS
SEG 10
10K
CP1003 IMSA-9604S-04Z14 1 2 3 4 VCC BOT LDMLDM+ LMLM+
82K P.CON+5V BOT
R1060 12K 1/4W R1059
1
2.0 0
2
NC
3
4
5
0 5.1 5.1
1K 1/4W
10K
W851
W852
R1052
10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 0 2.0 4.0 4.0 4.0 3.0 4.0 0 5.1 0.1 5.1 5.1 5.1 0 4.0 3.5 4.0 2.6 0 5.1 NC
6
7
8
9
26
FROM/TO DECK
COMP
H.SW
R1003
RESET
SEG 1
SEG 2
SEG 3
SEG 4
SEG 5
SEG 6
SEG 7
SEG 8
SEG 9
27
28
NC
R1016 DUMMY_V.SYNC 56K RF_CH_SW AT+5.2V AT+5.2V RESET
AT+5.2V POWER_FAIL CAP_LIMIT Y/C_DATA Y/C_CLK IIC_DATA
P.CON+5V
SEG_6 SEG_7 SEG_8 SEG_9 SEG_10
REM_IN
IIC_CLK
SEG_1
SEG_2
SEG_3
SEG_4
SEG_5
SEG_6
SEG_7
Y/C_CS
REEL-S
REEL-T
SEG_8
SEG_9
CP1001 IMSA-9604S-07Z14 1 2 3 4 5 6 7 U-OUT V-OUT W-OUT M-COM GND PG OUT PG GND FROM/TO CAPSTAN DD UNIT 50V 1 KA 1.5K C1064_1 R1061 U-OUT V-OUT W-OUT MODE_VCC EOT P.SAVE_OFF_5V P.CON+5V MS_SEN-B
H.SW
FROM/TO MICRO MOTOR
SEG_10
3
3
MS_SEN-A
IIC_DATA
REEL-S
REEL-T
IIC_CLK
P.CON+5V
AT+5V[M-CON]
PGINPGIN+
R1045 3.3K R1044 3.3K
1K 1/4W
R1058
D1001 SID1050CM
EOT SENSOR Q1006 PNA2604M010R
R1002
C1023
0
REEL SENS Q1002 RPI-301
1 2 3 4 5 6 7 8
GND MOTOR_GND I LIMIT CTL VCO(12V) CAP FG CAP/M/F/R VCC(5V) 1K 1/4W CAP_FG R1069 CAP_F/R W838 P.CON+5V CAP_LIMIT CONTROL_IN
6.3V
SENSER SW 1.2 Q1003 2SC2412K 2
1.2 5.2 3
220 YK
2
R1006
R1066
180
47K
C1060 0.1 F
5.0
5.1 1.3
CP1002 TMC-J08P-B1
MS_SEN A Q1005 RPI-352Q01R 0.9 2 5.2 3
47K 1/4W
7 RESET SW Q1007 2SC2412K 0
470K 1/4W
R1019
AT+5.2V
M-COM
AT+5V[M-CON]
SEN_LED
2
1.2 2 1
5.2
5.1 0
100 1/4W R1087
270 1/4W R1011
CAP_VCO R1041
0.9 2.2K MS_SEN B Q1004 RPI-352Q01R
1.4 33K R1083
0.4 R1050
1.4 33K
W845
1
4
1
4
50V1 KA
3 5.2
4 1.4 6
R1051 0.01 B C1021 C1017 56K
D1010 MTZJ5.6B
RESET SW Q1014 2SC2412K 0.5
0 0 PCB010 VMX206
1
NOTE: THE DC VOLTAGE AT EACH PART WAS
MEASURED WITH THE DIGITAL TESTER DURING PLAYBACK
CAUTION: DIGITAL TRANSISTOR NOTE: THIS SCHEMATIC DIAGRAM IS THE LATEST AT THE TIME OF PRINTING AND SUBJECT TO CHANGE WITHOUT NOTICE CAUTION: SINCE THESE PARTS MARKED BY CRITICAL FOR SAFETY,USE ONES DESCRIBED IN PARTS LIST ONLY ARE ATTENTION: LES PIECES REPAREES PAR UN ETANT DANGEREUSES AN POINT DE VUE SECURITE N'UTILISER QUE CELLS DECRITES DANS LA NOMENCLATURE DES PIECES
RECORD COLOR SIGNAL RECORD LUMINANCE SIGNAL PLAYBACK COLOR SIGNAL PLAYBACK LUMINANCE SIGNAL
G H
1
A
B
C
D
E
F
G-3
G-4
A
B
C
D
E
F
G
H
TUNER SCHEMATIC DIAGRAM
8
(SYSCON PCB)
8
TU6001 TMDH2-A34A
E
REAR OUT JACK J4201_1 AV2-15D-2 R6005 22K 0.01 B 1 2
7
25
26
7
3 V
R4205
R6006 A.IN CH MB 2 10K 3 4 W844
RF_CONV_A.OUT W853 RF_CH_SW VIDEO OUT TP4201 R4202 TV/VCR
C4204
2.2K
H1 H2
A
W811
R6004 V.IN 6 1K 1/4W
C4201
470 YK
75
CONTROL 5
W803 R4213 560 W816
FROM_NORMAL_A RF_CONV_A.OUT
6
6.3V
RF AGC
8
NC NC
6
NC 9 CE 10 CLOCK 11 DATA 12
C4209 16V 10 KA IIC_CLK IIC_DATA L6002 6.3V 220 YK P.CON+5V 0.01 F C6009 C6010 22uH 0305 R6010 270 1/4W L6003 15uH C6014 0.001 Y +32V 0 BUFFER Q4201 KTA1266-AT(Y,GR) 3.3 2.6 R4210 100 VIDEO_OUT P.CON+12V R4201 470 1/2W
BM 13 PB 5V 14
5
FSC
15
FSC
5
TU 32V 16 IF TP IF OUT 17 18
FRONT AV JACK VIDEO J4203 AV1-15D-3
E
FRONT AV JACK MONO AUDIO J4205_1 AV1-15D-4
1 2
E
1 2 R4209
H
H
4
A.OUT 21 SIF OUT 22 AFT 23 C6003_1 V.OUT 24
27 28
75
W813
TUNER_A
4
NC AFT-S.CURVE TUNER_V 16V 10 KA C4211 FRONT_A_IN-L
16V 10 KA
FROM/TO Y/C/AUDIO/CCD/HEAD AMP
FROM/TO SYSCON/SERVO/TIMER
FROM POWER
(TUNER)
FRONT_V_IN
3
0.033 B
C6002
3
2
FROM_NORMAL_A
RF_CH_SW
TUNER_V
VIDEO_OUT
FRONT_V_IN
P.CON+12V
P.CON+5V
FRONT_A_IN-L
AFT-S.CURVE
IIC_DATA
TUNER_A
GND
+32V
IIC_CLK
TV/VCR
FSC
2
NOTE: THE DC VOLTAGE AT EACH PART WAS
1
MEASURED WITH THE DIGITAL TESTER DURING PLAYBACK
NOTE: THIS SCHEMATIC DIAGRAM IS THE LATEST AT THE TIME OF PRINTING AND SUBJECT TO CHANGE WITHOUT NOTICE
CAUTION: SINCE THESE PARTS MARKED BY CRITICAL FOR SAFETY,USE ONES DESCRIBED IN PARTS LIST ONLY
ARE
ATTENTION: LES PIECES REPAREES PAR UN ETANT DANGEREUSES AN POINT DE VUE SECURITE N'UTILISER QUE CELLS DECRITES DANS LA NOMENCLATURE DES PIECES
RECORD LUMINANCE SIGNAL RECORD COLOR SIGNAL AUDIO SIGNAL(REC) AUDIO SIGNAL(PB) TUNER VIDEO SIGNAL PLAYBACK LUMINANCE SIGNAL PLAYBACK COLOR SIGNAL
G
PCB010 VMX206
1
A
B
C
D
E
F
H
G-5
G-6
A
B
C
D
E
F
G
H
POWER SCHEMATIC DIAGRAM
8
(SYSCON PCB)
8
TO TUNER R549 +32V 330 1/4W W837 MTZJ24B P.CON+12V P.CON+5V (TUNER) GND
7
MTZJ33B D520
D501
7
D521 1SS244 L501 0R3A433F20 1 S502 S501 FH501 EYF-52BC C504 FH502 275V 0.022 PHE840 EYF-52BC R502 3 2 4
TO Y/C/AUDIO/CCD/HEAD AMP P.CON+5V GND
33K 1/2W
WHITE BLACK
1N4005-EIC D523
6
500V 0.01 E
BLADE WIDE
R512
C512
AC120V_60Hz CD501 07414902
1N4005-EIC D508
C518
D505
50V 10 KA
6
500V 100P B
C509
1N4005-EIC 3.3M 1/2W 47 YK
C508
200V
1.6A125V F501 51MS016LCC
1N4005-EIC
TRANSFORMER SWITCHING T501 8122009
500V 0.0027 B B501 D514 16V 470 YK L505 16V 220 YK 33K 1/4W 22uH C522 W820 R509
B502
FBA04HA600VB-00 SB290S 1 2 NC 3 4 10 D512 6.3V 1000 YK 9 8 7 6 NC SB140-EIC C514 C519
C505 250V 0.0033 KH R534 330K 1/2W 1.6A 125V
L504 22uH C520
12
MTZJ6.8B
5
6.3V 470 YK
W822
D528
FBA04HA600VB-00 RGP10J-EIC
D511
C502
5
D525
FROM/TO SYSCON/SERVO/TIMER
R544
33K
SWITCHING Q503_1 2SC4160-OEC-YAC1 0.2 0.4 220K 1/2W R547 0 D507 1SS133 W826 C507 0.0047 B R511 120 1/2W C534 0.012 B D502 R537 1.2K 1/4W 1SS133 R527 22K C529 0.0082 B R524 1.8K 146 0.018 B CONTROL Q502 KTC3203_Y-AT 0.2 C506 0
5
CAP_VCO AT+12.6_V AT+5.2V MODE_VCC POWER_FAIL
W862
220 1/4W
R514
4
1 1W
R521
POWER_ON-H P.CON+5V SW Q506 KTA1273_Y 5.2 5.1 P.CON+5V P.SAVE_OFF_5V
4
0 R506 -0.4 0.4 1.3K +-1% 680 R510 1K C515 0.0082 B R518 4 1 3.9 2.9 5.0 R519 1K R530 390 1/4W 0.04 0.0 (S/S)
AT+5V[M-CON] GND (CAP) GND (CYL/LDM) GND
3
PHOTO COUPLER Q511 LTV-817M-VB 1.2K +-1% R516 VOLTAGE CTL IC KIA431 IC501 W818
P.ON SW Q508 DTC143EKA
3
2
3
TO OPERATION AT+5.2V
OUT 1 2.9
GND 3 0
IN 2 2.5 (FIP) 5.2 5.1 5.9 (SYS)
AT+5.2V_A GND GND
2
D506 1SS133
2
3
77.3 77.4
2.1 5.2 PHOTO COUPLER Q505 LTV-817M-VB
R548 1K 1/4W
M-CON B+ SW Q515 KTC3198-AT(Y,GR)
2
1
4
R531
150K
PCB010 VMX206 1.6A 125V
CAUTION: DIGITAL TRANSISTOR NOTE: THE DC VOLTAGE AT EACH PART WAS
MEASURED WITH THE DIGITAL TESTER DURING PLAYBACK
1
CAUTION: FOR CONTINUED PROTECTION AGAINST FIRE HAZARD, REPLACE ONLY WITH THE SAME TYPE FUSE 1.6A 125V (F501). ATTENTION: POUR UNE PROTECTION CONTINUE LES RISQUES D'INCEIE N'UTILISER QUE DES FUSIBLE DE MEME TYPE 1.6A 125V (F501).
NOTE: THIS SCHEMATIC DIAGRAM IS THE LATEST AT THE TIME OF PRINTING AND SUBJECT TO CHANGE WITHOUT NOTICE
ATTENTION: LES PIECES REPAREES PAR UN ETANT DANGEREUSES AN POINT DE VUE SECURITE N'UTILISER QUE CELLS DECRITES DANS LA NOMENCLATURE DES PIECES
CAUTION: SINCE THESE PARTS MARKED BY CRITICAL FOR SAFETY,USE ONES DESCRIBED IN PARTS LIST ONLY
ARE
1
A
B
C
D
E
F
G
H
G-7
G-8
A
B
C
D
E
F
G
H
OPERATION SCHEMATIC DIAGRAM
8
(SYSCON PCB)
8
V651
LTG-Y2K22M-J
7
7
1G SW Q665 2SA1037AK 5.2 4.9 REW/REV SW607 SKQNAED010 R675 820 1.7 SEG1 SW Q664 KRC103RTK 0 2.0 1.9 SEG2 SW Q663 KRC103RTK 0 4.0 13K R605 PLAY SW606_1 SKQNAED010 5.2 4.9 6.8K 1/4W FF/CUE SW605 SKQNAED010 R604 1.7 SEG4 SW Q660 KRC103RTK 0 4.0 1.1 R674 180 R673 180 R672 180
15 14 13 12 11 10 9
8
7
6
5
4
3
2
1
FROM POWER AT+5.2V AT+5.2V_A (FIP) (SYS) GND GND
6
6
0.4 SEG3 SW Q662 KRC103RTK 0 4.0 0.4
5G SW Q651 2SA1037AK 1.3 5.2 SEG10 SW Q652 KRC103RTK 4.9 R662 180 R670 180 R663 180 0.9 SEG9 SW Q653 KRC103RTK 4.0 0.4 4G SW Q654 2SA1037AK 4.0 5.2 1.7 0 0 820 R661
FROM/TO SYSCON/SERVO/TIMER
2G SW Q661 2SA1037AK
REM_IN KEY-B KEY-A 1G/TV/VCR_LED 2G/T-REC_LED 3G/REC_LED 4G 5G SEG_1 SEG_2 SEG_3 SEG_4
5
5
R671
820
3G SW Q659 2SA1037AK 5.2 4.9 1.7
SEG5 SW Q658 KRC103RTK 0 3.0 R668 1.0 SEG6 SW 180 Q657 KRC103RTK 0 4.0 SEG_5 SEG_6 0.4 R667 180 R665
R603
R669
820
SKQNAED010 1G/TV/VCR_LED POWER SW608 R602 2.7K
180 SEG7 SW Q656 0 KRC103RTK R666 3.1 0 180 0 SEG_7 SEG_8
R664
820
REC/OTR SW604_1
3.9K
SEG8 SW Q655 4.9 KRC103RTK 3.5 0
SEG_5 SEG_6 SEG_7 SEG_8 SEG_9 SEG_9 SEG_10 SEG_10 5G
2G/T-REC_LED
4
STOP/EJECT SW603_1 SKQNAED010
3G/REC_LED
SKQNAED010
4
SEG_1
SEG_2
SEG_3
SEG_4
4G
(FIP) GND AT+5.2V_A
R601
R607
3.3K
3.3K
OS651 PIC26043LO
3
Vout
1 W840
REM_IN AT+5.2V
3
GND 2 B+ 3
(SYS) GND SKHVBED010 SKHVBED010 CH DOWN SW660 CH UP SW659
FRONT 1,4 CP601_1(CP651_1) IMSA-9604S-04Z13 KEY-A 1 2 3 GND 4 1 2 3 4
CD651 2F040702 4 FFC 3 2 1
FRONT 1,4 CP651_1 (CP601_1) IMSA-9604S-04Z14 4 3 2 1 GND KEY-A KEY-B NC
2
KEY-B
KEY-B KEY-A
2
PCB270 VEX927
CAUTION: DIGITAL TRANSISTOR NOTE: THE DC VOLTAGE AT EACH PART WAS NOTE: THIS SCHEMATIC DIAGRAM IS THE LATEST AT THE TIME OF PRINTING AND SUBJECT TO CHANGE WITHOUT NOTICE
PCB010 VMX206
1
MEASURED WITH THE DIGITAL TESTER DURING PLAYBACK
1
A
B
C
D
E
F
G
H
G-9
G-10
A
B
C
D
E
F
G
H
DECK SCHEMATIC DIAGRAM
8
(DECK PCB)
8
LOADING MOTOR M101
7
7
S105
6
5.1 0 BOT SENSOR Q101 RPT-38PB113
6
S106
S101
S102
S103
S104
5
5
FROM/TO SYSCON/SERVO/TIMER CP101 52044-0445 4 3 2 1 LDM+ LDMBOT VCC
4
4
PCB550 VE8851
3
3
2
2
CAUTION: SINCE THESE PARTS MARKED BY CRITICAL FOR SAFETY,USE ONES DESCRIBED IN PARTS LIST ONLY
ARE
ATTENTION: LES PIECES REPAREES PAR UN ETANT DANGEREUSES AN POINT DE VUE SECURITE N'UTILISER QUE CELLS DECRITES DANS LA NOMENCLATURE DES PIECES
NOTE: THE DC VOLTAGE AT EACH PART WAS
MEASURED WITH THE DIGITAL TESTER DURING PLAYBACK
NOTE: THIS SCHEMATIC DIAGRAM IS THE LATEST AT THE TIME OF PRINTING AND SUBJECT TO CHANGE WITHOUT NOTICE
1
1
A
B
C
D
E
F
G
H
G-11
G-12
A
B
C
D
E
F
G
H
INTERCONNECTION DIAGRAM
8 8
FULL ERASE HEAD ASS'Y H5002 CP601 HALL SENSOR KEY_A KEY_B GND MAIN COIL ROTOR MAGNET MR FG SENSOR VCC
FE HEAD (GND)
FE HEAD (HOT)
1
2
3
2
1
CD651 FFC
4
7
OPERATION PCB PCB270 VEX927
O
G
7
HALL HALL VCC IN 4 3 2 1
OUT SWITCH LOGIC
2 FE HEAD (GND)
FE HEAD (HOT)
1
KEY_A
KEY_B
GND
CP1002 1 2 3 4 5 6 7
GND MOTOR_GND I LIMIT CTL VCO(12V) CAP FG CAP/M/F/R VCC(5V)
1 2 3 4 5 6 7 8 CAPSTAN DD UNIT ASS'Y M2001
CP4003
AC120V_60Hz CD501
6
BLADE WIDE
CP651
WHITE BLACK
6
S502 S501
8
TU6001 TUNER,DEMODULATOR AND RF CONVERTER FR IN FR OUT
26
CP4002 6 5 4 3 2 1 AUDIO PB AUDIO REC CTL+ CTLAE HEAD(-) AE HEAD(+)
CD1002 FFC 6 5 4 3 2 1 AUDIO PB AUDIO REC CTL+ CTLAE HEAD(-) AE HEAD(+)
HEAD AUDIO CONTROL ASS'Y H5001
AUDIO
5
25
CONTROL
5
A.IN
2
A.IN CH MB CONTROL V.IN
AE
CH 3 MB 4 CONTROL 5 V.IN 6
REAR OUT JACK J4201
VIDEO OUT AUDIO OUT
DECK PCB PCB550 VE8851
4
(RF AGC) 8 (BT) 9 CE 10 CLOCK 11 DATA 12 J4203 FRONT AV JACK J4205 AUDIO IN VIDEO IN BM 13 PB 5V 14 FSC 15
NC NC 1 2 3 4 CLOCK DATA BM PB 5V 1 FSC TU 32V 2 3 4 5 6 7
CP1003 VCC BOT LDMLDM+
CD1001 FFC
RED CP101 VCC BOT LDMLDM+ 4 3 2 1 LM WHITE BOT SENSOR Q101
4
LOADING MOTOR M101 CP1001 U-OUT V-OUT W-OUT M-COM GND PG OUT PG GND CD4001 FFC U-OUT V-OUT W-OUT M-COM GND PG OUT PG GND 1 2 3 4 5 6 7 MICRO MOTOR M2003
3
3
TU 32V 16 IF TP IF OUT COMMAND TRANSMITTER TM601 17 18
OS651 FROM TM601 Vout
1
CP4001 9 8 7 A.OUT 21 SIF OUT 22 NC AFT V.OUT
28
CYLINDER UNIT ASS'Y UN4001 9 8 7 NC NC NC
GND 2 B+
3
TO OS651
2
A OUT
6 5 4 3 2 1
SP-CH1 (R) SP_COM SP-CH2 (L) EP/LP-CH1 (R) EP/LP_COM EP/LP-CH2 (L)
6 5 4 3 2 1 EP/LP HEAD SP HEAD
2
SYSCON PCB PCB010 VMX206
27
AFT 23 V.OUT 24
1
CAUTION: SINCE THESE PARTS MARKED BY CRITICAL FOR SAFETY,USE ONES DESCRIBED IN PARTS LIST ONLY
ARE
ATTENTION: LES PIECES REPAREES PAR UN ETANT DANGEREUSES AN POINT DE VUE SECURITE N'UTILISER QUE CELLS DECRITES DANS LA NOMENCLATURE DES PIECES
NOTE: THIS INTERCONNECTION DIAGRAM IS THE LATEST AT THE TIME OF PRINTING AND SUBJECT TO CHANGE WITHOUT NOTICE
1
A
B
C
D
E
F
G
H
G-13
G-14
WAVEFORMS
Y/C/AUDIO/CCD/HEAD AMP SYSCON/SERVO/TIMER POWER
1 POWER ON 10µs 500mV/div
6 PB 200ms 1.0V/div
12 PB 2µs 50.0V/div
2 POWER ON 100ns 100mV/div
7 PB 200ms 1.0V/div
3 PB 1ms 100mV/div
8 POWER ON 50ns 500mV/div
4 PB 500µs 200mV/div
9 PB 500µs 1.0V/div
5 REC 5µs 20.0V/div
11 PB 200µs 1.0V/div
NOTE: The following waveforms were measured at the point of the corresponding balloon number in the schematic diagram.
H-1
MECHANICAL EXPLODED VIEW
704
704 704
703 703 703
618 704
702
619
612 611
615 613
J4201 TU6001
617
T501 620
PCB010 (SYSCON PCB)
614
604
609 701
701
610
605 606
PCB270 (OPERATION PCB)
603
607 608 610 601
602
616
I-1
CHASSIS EXPLODED VIEW (TOP VIEW)
300 352 510
M2003
UN4001 335
319
502
507
334
AA 318 349 328 336
502
314
H5001 321 348 310 506 305 501 356 347 301 304
H5002
512
512 355
303 AB AB
315 338
317 361
AA
316
309
AA AA AB
320
AA M101
359
313
360 357 329
BA 3