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CONTENTS SECTION 1 ..SUMMARY SECTION 2 ..CABINET & MAIN CHASSIS SECTION 3 ..ELECTRICAL SECTION 4 ..MECHANISM OF VCR PART SECTION 5 ..MECHANISM OF DVD PART SECTION 6 .
PRODUCT SAFETY SERVICING GUIDELINES FOR VIDEO PRODUCTS CAUTION : DO NOT ATTEMPT TO MODIFY THIS PRODUCT IN ANY WAY, SUBJECT : X-RADIATION NEVER PERFORM CUSTOMIZED INSTALLATIONS WITHOUT MANUFAC- 1. BE SURE PROCEDURES AND INSTRUCTIONS TO ALL SERVICE PER- TURER’S APPROVAL. UNAUTHORIZED MODIFICATIONS WILL NOT ONLY SONNEL COVER THE SUBJECT OF X-RADIATION.
SERVICING PRECAUTIONS CAUTION : Before servicing the VCR+DVD covered by this Electrostatically Sensitive (ES) Devices service data and its supplements and addends, read and fol- Some semiconductor (solid state) devices can be damaged low the SAFETY PRECAUTIONS. NOTE : if unforeseen cir- easily by static electricity.
SPECIFICATIONS GENERAL Power requirements AC 120V , 60 Hz Power consumption Dimensions (approx.) 16.9" X 3.1" X 10.8" (430 X 78.5 X 273 mm) (w x h x d) Mass (approx.) 8.82 lbs (4.0 kg) Operating temperature 41°F to 104°F (5 °C to 40°C) Operating humidity 5 % to 90 % Signal system...
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SECTION 2 CABINET & MAIN CHASSIS CONTENTS 1. EXPLODED VIEWS ........................2-2 1. Cabinet and Main Frame Section ...................2-2 2. Packing Accessory Section ....................2-3...
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EXPLODED VIEWS 1. Cabinet and Main Frame Section...
VCR PART ELECTRICAL ADJUSTMENT PROCEDURES 1. Servo Adjustment 1) PG Adjustment • Test Equipment a) OSCILLOSCOPE b) NTSC MODEL : NTSC SP TEST TAPE • Adjustment And Specification MODE MEASUREMENT POINT ADJUSTMENT POINT SPECIFICATION V.Out PLAY R/C TRK JIG KEY 6.5 ±...
ELECTRICAL TROUBLESHOOTING GUIDE 1. Power(SMPS) CIRCUIT (1) No 5.3VA (SYS/Hi-Fi/TUNER) NO 5.3VA. Replace the F101. Is the F101 normal? (Use the same Fuse) Is the BD101 Replace the normal? BD101. Is the R101 Replace the R101. normal? Is Vcc(9V~18V) sup- Is the D102 Check or Replace plied to IC101 Pin2?
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(2) No 5V (3) No 3.3V NO 5V. No 3.3V. Is there about 3.7V Is the Vcc(5.3V) sup- Check or Replace Check or Replace plied to Q160 Emitter? the D118. the D111 at the IC152 pin1? Is there about 3.3V~ Is the Q162 Base Check the PWR CTL Check the PWR CTL...
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(6) No 13V(TO Cap, Drum Motor) (7) No 8V NO 13VA. NO 8V. Check or Replace Check or Replace Is the Vcc(13V) Is there about 13V supplied to C123? at the IC151 pn1? the D110. the D110. Replace the Is there about 3.3V~ Is the D117/D115 Check the PWR CTL Normal?
2. SYSTEM/KEY CIRCUIT (1) AUTO STOP Auto Stop Does the SW30 waveform Check the Drum Motor appear at the IC501 signal. Pin18? Do T/UP Reel Pulses Do the T-UP Reel Pulses Does 5V appear at the appear at the point appear at the IC501 Pin80? RS501? between R556 and R536?
3. SERVO CIRCUIT (1) Unstable Video in PB MODE Unstable Video in PB Mode. Does the Noise level of the screen change periodically? Do the CTL pulses appear Is adjusting the height of at the IC501 Pin97? the CTL Head accurate? Does the CFG waveform Readjust the height of the appear at the IC501...
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2. SERVO CIRCUIT (3) When the Capstan Motor doesn’t run, When the Capstan Motor doesn’t run, Refer to “SMPS(CAPSTAN/12Volt) Does 12VA appear at the PMC01? Trouble Shooting”. Does 2.8V appear at the PMC01 Pin 9? Check the PMC01 and the Capstan Does the PWM signal appear at the IC501 Pin77? Motor Ass’y.
2. SERVO CIRCUIT (4) KEY doesn’t working KEY doesn’t working. Is 5V applied to the IC501 Refer to “SMPS 5.3VA Pin99? Trouble Shooting”. Does LED or FLD change Replace the defective when a function button is switches. pressed? 4. OSD CIRCUIT (1) No OSD display.
5. Y/C CIRCUIT (1) No Video in EE Mode, No Video in EE Mode Does the Video signal appear at the IC301 Check the Tuner Pin16V Pin15? Check the SW 5V, 5.3VA Is 5.0V applied to the IC301Pins4, 22, 47, 60, 84? Line.(Power Circuit) Does the Video signal Is I...
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3. Y/C CIRCUIT (2) When the Y(Luminance) signal doesn’t appear on the screen in PB Mode, Is 5.2VT, 5.3VA applied to the Check the SW 5V Line. (Power Circuit) IC301 Pins22, 47, 60, 84? Is the Y/C Bus siganl Refer to ‘SYSTEM I C BUS applied to the IC301 CHECK Trouble Shooting’.
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3. Y/C CIRCUIT (3) When the C(Color) signal doesn’t appear on the screen in PB Mode, Check the SW 5V, 5.3V Is 5.2VT/5.3VA applied to the IC301 Pins 22, 47, 60, 84. Line. (Power Circuit) Is normal the X301 Is the Color signal applied (3.58MHZ) of oscillation Replace the X301.
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3. Y/C CIRCUIT (4) When the Video signal doesn’t appear on the screen in REC Mode, Is the EE signal normal? Check EE Mode. Is 5.2V/5.3VA applied to the Check the SW 5V/ 5.3VA IC301 Pins 4, 22, 47, 60, 84? Line.(Power Circuit) Does PB Mdoe operate Check PB Mode.
6. Hi-Fi CIRCUIT (1) No Sound(EE Mode) No Sound. Check the SIF.IN of IC801 Pins57. Check the TU701 SIF Pin13. Check the DVD Audio of IC801 Check the DVD MODULE. (PMD02 Pins13, 15). Pins12, 74. Check the AV1 Audio of IC801 Check the Rear Jack.
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3. Y/C CIRCUIT (2) Hi-Fi Playback PB mode No Sound. Check the Vcc of IC801 Check Power. (Pins3, 5, 15, 32, 36, 46, 54). Check the Hi-Fi Selection switch. Check IC501 Pin19 (A.H/SW) (IC801 Pin39) and the Tape quality. Is the RF Envelope at IC801 Pin23 over 3Vp-p? Check IC801 Pin37(Data), Check the parts of µ-COM...
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(3) Hi-Fi REC Hi-Fi REC. It is impossible to record Hi-Fi Audio signal. Check Vcc of IC801. Check Power. (Pins3, 5, 15, 32, 36, 46, 54) Check ports of µ-CPM. Check IC801 Pin37(Data), Pin38(CLOCK). (IC501 Pins71, 72) Check Audio input signal of IC801 Do Audio signals appear at IC801 Pin6? Pin57(TU.A.), 7, 69(DVD.A.), 11, 73(AVI.A.), 9, 71(AV2.A.)
7. Tuner/IF CIRCUIT (1) No Picture on the TV screen No picture on the TV screen Does the Video signal at Is +33V applied to TU701 Check 33V line. the TU701 Pin16. Pin14? Is +5V applied to TU701 Check 5V line. Pin3? Does the Clock signal Check the lIC Clock Signal...
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(2) No Sound No Sound. Check the Vcc of TU701 Pins3, 14. Check 5.2V, 33V Line. Check the Tuner SiF signal at IC801 Check the Tuner SIF of TU701 Pin13. Pin57. 1. Check the Vcc(5.3VA, 9V) of IC801 Check the Audio of IC801 Pins78, 80. Pins3, 5, 36, 54.
3. Y/C BLOCK DIAGRAM (PB Mode) (REC Mode) VIDEO IN VIDEO IN LINE 1 VIDEO IN LINE 2 VIDEO IN DATA System C-SYNC (FROM u-COM) System (TO u-COM) CLOCK System (FROM u-COM) CLOCK System (FROM u-COM) DATA System (FROM u-COM) DVW-7000 3-24 3-25...
5. Hi-Fi BLOCK DIAGRAM Hi-Fi/ AUDIO INPUT 26 27 BLOCK DEMO DULATE FM MODU A.OUT 'L' DE MODU DVD A.IN 'L' A.OUT DVD AUDIO To JACK A.OUT 'R' DVD A.IN 'R' AV1 A.IN 'L' INPUT REAR JACK OUTPUT SELECT AV1 A.IN 'R' SELECT MODULATOR AV2 A.IN 'L'...
CIRCUIT DIAGRAMS IMPORTANT SAFETY NOTICE SHADED ON THE SCHEMATIC FOR EASY IDENTIFI- NOTE : CATION. 1. Shaded( ) parts are critical for safety. Replace only WHEN SERVICING THIS CHASSIS, UNDER NO CIR- THIS CIRCUIT DIAGRAM MAY OCCASIONALLY DIF- with specified part number. 1.
4. A/V CIRCUIT DIAGRAM No Color. R333, C350, C349 are defective. Video Noise. No Color. H/SW Level is defective.. L307,C349 are defective. Video output level unstable C323 is defective. VIDEO Distortion R322, R323, R324, C320 are defective. WAVEFORM Y. (REC) Y+C (REC) C.
5. Hi-Fi CIRCUIT DIAGRAM (DVW-7000 Without) IC801 Pins37, 38 aredefective. All Audio is not appear. 23 Pin is defective. Hi-Fi Audio is not appear. SR14304A DVW-7000 3-40 3-41...
7. SYSTEM CIRCUIT DIAGRAM VCR will not operate. IC505 is defective. CLOCK SETTING will Deck will not operate. not operate. R575, R576, R577, X501 is defective. R578 are defective. µ-COM will not operate. X502 is defective. Auto stop occures. Auto Rew will not working. RS501,RS502 are µ-COM is unstable.
• CIRCUIT VOLTAGE CHART MODE MODE MODE MODE MODE MODE Base Emitter Collector Location PLAY PLAY PLAY PLAY PLAY PLAY PIN NO. PIN NO. PIN NO. PIN NO. PIN NO. PIN NO. I C 3 0 1 1.99 2.02 0.29 3.91 3.87 0.32...
2. POWER P.C.BOARD NOTES) Warning NOTES) Parts that are shaded are critical NOTES) With respect to risk of fire or NOTES) electricial shock. LOCATION GUIDE 3-54 3-55...
DVD PART ELECTRICAL TROUBLESHOOTING GUIDE & WAVEFORMS 1. System Clock X601 (27Mhz) NORMAL ABNORMAL IC601 1) MPEG IC start oscilating 1) Logo Picture doesn’t appear MPEG after being installed VCC (STI5589) 2) Initial step fail * Initial step : power cord in -> green LED -> red LED ->...
3. Initializing between MPEG and Flash 1) MPEG IC start oscilating(27Mhz) after being WE signal should be confirmed by Flash or the installed VCC next step will not continue. 2) MPEG IC is initialized by MRESET As that result, the initial step(power cord in -> green LED ->...
5. Reference Voltage 2 We can see how the reference voltage, Even though, the reference voltage come out mentioned previous page, will work on servo correctly from DSP, control.. If A/B/C/D are not biased by 2.1V, and checking 1) The DC level of RF signal from P/up is 2.1V the P/up is needed.
7. Checking the Video Signal VCR Block 35 pin (IC601) 4Pin(IC609) IC609 23Pin(IC609) IC601 buffer Composite out STI5589 (MPEG) 34 pin(IC601) 27 pin(IC601) Check the followings 1) Check the video output mode. if the output mdoe is progressive - on, there is no composite signal. the output mode should be changed to progressive - off 2) Check the buffer IC and MPEG, and then replace.
9. Checking the second step of servo (2) Let’s look over the initial step of servo 4) the following step will be done continuously CD - Laser on -> move lense -> DVD - laser on -> 1) when the tray is closed, first of all, it should be move lense.
11. Checking the reset port Pin 81 of IC202, pin 130, 193 of IC601 and pin 12 of IC603 are related to RESET. We can know whether IC is intialized or not through those ports. The waveform shows the status when the reset signal works normally. If the MRESET is abnormal, then check the front u-com(IC501) and replace it MRESET (Pin130 of IC601) DSP_RST (Pin 81 of IC202)
13. Checking the track jump TE and TACT signals are output respectively from pin 54 and pin 34 of IC 202 during a normal play. SLED signal is output pin 29 of IC 202 and flow into pin 15 and pin 18 of IC 201 to operate a sled motor when to skip chapters or to scan.
15. The status Focus and spindle motor The waveform is to display F+ siganal from pin 9 IC201 and SPM+ from pin 10 IC201. F+ is used to control a focus actuator of pick - up and SPM+ is used to operate a spindle motor. So, we can know the position of the acuator and the speed and rotating direction of the spindle motor through those signals.
17. Input Clock to IC202 The waveform and the block diagram as below show a clock input and output between IC202 and X201. Clocks generated in X201 is output and input into pin86 and pin87 of IC202. The clock frequency is 20MHz. IC202 (STL6317) IC 202...
19. Focus Drive signal(FACT) FACT is made from focus error signal at DSP(IC202) and is input to IC201. And then FACT is converted into F - and F+ in IC201. Finally, they are sent to pick - up to control a focus actuator. IC202 IC201 IC202...
21. FACT and FE for DVD9 (Dual disc) FE signal becomes like the waveform 2, in case of DVD dual layer disc since the laser beam is reflected on both layer 0 and layer 1. Layer0 Layer1 22. System clock of MPEG IC The waveform and the block diagram as below show a clock input and output between IC601 and X601.
CIRCUIT DIAGRAMS 1. RD SERVO CIRCUIT DIAGRAM RF Amplified The final signal for RF DVD reading fail CD reading fail RF Amplified & Filtered Motor drive IC Tray open/close Plup, Spindle, Loading Motor not work DSP initializing signal -servo is not work Interface line with MPEG IC Find best point for Tracking...
2. SYSTEM CIRCUIT DIAGRAM Invertor IC X-TAL 27MHz MPEG IC 1. Initial Function SDRAM 64M 2. Video output Ligo picture will not display 3. Audio output EEPROM Not used Video Buffer IC 1.8V Regulator Main Servo data and clock DSP Reset Level shuf IC Initial Function will be abnormal µ-COM Program...
3. AUDIO CIRCUIT DIAGRAM 2Ch Audio digital to Analog convertor OP Amp for Amplifying Audio Siganl Audio mute be send to VCR Serial Interface with main µ-com (MPEG IC) Transistor for zero mute 2Ch Audio DATA 2CH L SR14309A 2CH R DVW-7000 3-75 3-76...
• CIRCUIT VOLTAGE CHART MODE MODE MODE MODE MODE MODE MODE MODE MODE STOP PLAY STOP PLAY STOP PLAY STOP PLAY STOP PLAY STOP PLAY STOP PLAY STOP PLAY STOP PLAY PIN NO. PIN NO. PIN NO. PIN NO. PIN NO. PIN NO.
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SECTION 4 MECHANISM OF VCR PART(D-37) CONTENTS POSITION DRAWING OF DECK DECK MECHANISM ADJUSTMENT MECHANISM PARTS • Fixtures and tools for service ....4-12 1. Check of Mechanism Assembly Mode ..4-13 • Top View............4-1 2. Previous Preparation for • Bottom View ..........4-1 Deck Adjustment ........4-14 3.
POSITION DRAWING OF DECK MECHANISM PARTS • Top View Order Of Dis- Ref. Posi assembled Part Fixing Type Draw- tion Parts firstly ings Disassembled 1 Drum Assembly 3 screws 2 Plate Top 2 hooks 3 Holder Assembly CST 6 chasses 4 Gear Assembly Rack F/L 1 hook 2,3,4...
DISASSEMBLY AND ASSEMBLY OF DECK MECHANISM Drum Assembly Cable Flat (S1) (S1) (S1) Cap, FPC Holder FPC Fig. A-1 Cautions in assembly of FPC 1. Disassembly of Drum Assembly (Figure A-1) 1) Separate cable flat from the Drum FPC and the Capstan Motor.
DISASSEMBLY AND ASSEMBLY OF DECK MECHANISM 2. Disassembly of Plate Top (Fig. A-2-1) 4. Disassembly of Gear Assembly Rack F/L (Fig. A-2-3) 1) Separate the right part while leaning back the (B) part of 1) Separate the hook (H3) while leaning ahead the hook (3) the plate top toward the arrow direction.
DISASSEMBLY AND ASSEMBLY OF DECK MECHANISM Arm Assembly Tension (Fig. A-4-2) (H7) Reel T (Fig. A-4-3) Reel S (Fig. A-4-3) Spring Tension Brake Assembly T Spring Tension (Fig. A-4-1) (H8) (H6) Fig. A-4 13. Brake Assembly T (Fig. A-4-1) 15. Reel S/Reel T (Fig. A-4-3) 1) Release the spring tension from the lever spring hook 1) Disassemble the reel S/ reel T while holding it up (com- (H6).
DISASSEMBLY AND ASSEMBLY OF DECK MECHANISM Opener Lid (Fig. A-5-2) Arm Assembly Pinch (Fig. A-5-3) Base Assembly P4 (Fig. A-5-1) (H9) Arm T/up (Fig. A-5-4) Chassis Fig. A-5 16. Base Assembly P4 (Fig. A-5-1) 18. Arm Assembly Pinch (Fig. A-5-3) 1) Release the (A) part of the base assembly P4 from the 1) Hold the arm assembly pinch up.
DISASSEMBLY AND ASSEMBLY OF DECK MECHANISM Base Tension (Fig. A-9-1) Arm Assembly Idler Jog (Fig. A-9-2) Chassis Fig. A-9 34. Base Tension (Fig. A-9-1) 35. Arm assembly Idler Jog (Fig. A-9-2) 1) Release the (A) part of the base tension from the 1) Push both (B), (C) parts in Fig.
DECK MECHANISM ADJUSTMENT • Fixtures and Tools for Service 1. Cassette Torque Meter 2. Alignment tape 3. Torque gauge SRK-VHT-303(Not SVC part) Part No NTSC:DTN-0001 600g.Cm ATG Part No:D00-D006 PAL:DTN-0002 Part No:D00-D002 4. Torque gauge adaptor 5. Post height adjusting driver 6.
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DECK MECHANISM ADJUSTMENT 1. Mechanism Assembly Mode Check Purpose of adjustment : To make tools normally operate by positioning tools accurately. Fixtures and tools used VCR (VCP) status Checking Position • Eject Mode • Blank Tape (empty tape) • Mechanism and Mode Switch (with cassette withdrawn) 1) Turn the VCR on and take the tape out by pressing the 4) Undo the screw fixing the deck and the main frame, and...
DECK MECHANISM ADJUSTMENT 2. Previous Preparation for Deck Adjustment (Preparation to load the VCR (VCP) with cassette tape not inserted) 1) Take the power cord from the consent. If doing so, proceeding to the stop mode is done. In this 2) Separate the top cover and the plate assembly top.
DECK MECHANISM ADJUSTMENT 4. Guide Roller Height Adjustment Purpose of adjustment : To ensure that the bottom surface of the tape can travel along with the tape lead line of the lower drum by constantly and adjusting and maintaining the height of the tape. 4-1.
DECK MECHANISM ADJUSTMENT 5. Audio/Control (A/C) Head Adjustment Purpose of adjustment : To ensure that audio and control signals can be recorded and played according to the contract tract by constantly maintaining distance between tape and head, and tape tension between the P3 post and the P4 post.
DECK MECHANISM ADJUSTMENT 5-2. Tape Path Check between Pinch Roller and travel it stably to ensure there is no crumbling or fold- ing of the tape. Take up Guide (Check in the Rev Mode) 1) Check the tape pass status between the pinch roller and 2) Check there is folding of the tape at the bottom or top the take-up guide.(Check there is crumpling of the tape of the take-up guide in cutting-off the REV mode...
DECK MECHANISM ADJUSTMENT 7. Adjustment after Drum Assembly (Video Heads) Purpose of adjustment : To adjust and stabilize the height change, X-distance change, etc depending on the guide roller after assembling the drum. Fixtures and tools used Connection position VCR (VCP) status Adjustment position •...
PROTECTION, MAINTENANCE AND CHECK OF VIDEO FUNCTION 1. Checking Points prior to Repair Following abnormal phenomena may be repaired by removal of foreign materials and oil supply. Check oiling is required at the checking set or cleaning status is complete. Determine that necessity of checking and repair the set exists after checking the using period of the set together with the user.
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PROTECTION, MAINTENANCE AND CHECK OF VIDEO FUNCTION 2. Essential Check and Repair 4. Tools for Check and Repair Recording density of the video is far higher than the audio. (1) Grease: Floil G-3114 (KANTO) or equivalent grease Therefore video parts are very precise so as to allow only (Green) error of 1/1000mm or so in order to maintain compatibility (2) Grease: Kanto G-754, PL-433 (Yellow)
PROTECTION, MAINTENANCE AND CHECK OF VIDEO FUNCTION 5-2) Grease Applications (2) Regular Grease Application Apply grease to the designated application position (1) Grease Application Method every 500 hour. Apply grease by using a cloth swab or brush. Care must be exercised so that excess quantity should not be used.
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PROTECTION, MAINTENANCE AND CHECK OF VIDEO FUNCTION Lever, F/R, Base, Tension GEAR AY, P2 & P3 PL-433 LEVER, F/R BASE, TENSION Clutch Contact Part (PL-433, Yellow) Tension Arm Party Hinge Part (PL-433, Yellow) 4-22...
MECHANISM TROUBLESHOOTING GUIDE 1.Deck Mechanism No Auto Rewind operates. Is output of the end sensor “H”? “H”: 3.5V or less “L”: 0.7V –1V or less Is the end sensor Vcc applied at Check the Syscon power supply. Replace the end sensor. Is voltage at both ends of the Replace the LED.
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MECHANISM TROUBLESHOOTING GUIDE Auto Stop operates. (PLAY/CUE/REV) Check the assembly mode. Check the spring pinch. Does the pinch roller attached to the Capstan shaft turn in opera- Is output of the DFG, DPG Replace the drum motor. tion of the Play/Cue/Rev. normal? Does the T/UP or the supply Check the Servo, Syscon.
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MECHANISM TROUBLESHOOTING GUIDE No tape winding is done in play. Is the pinch roller attached to the Check the assembly mode? Capstan shaft in operation of play? Does the T/up reel operate? Is the Capstan belt hung? Hang the Capstan belt. Check the clutch and the idler Does the Capstan motor turn? assembly.
MECHANISM TROUBLESHOOTING GUIDE 2. Front Loading Mechanism No cassette insert is done. Does the lever assembly Is the lever assembly switch Add or replace the lever switch operate? spring normal? assembly switches spring. Does the CST IN switch Replace the F/L switch. operate normally? Is the Vcc of the main P.C.B assembly?
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MECHANISM TROUBLESHOOTING GUIDE No safe adherence of tape is done. Is cassette insert done? Does the opener lid operate? Replace the opener lid. Does the gear rack F/L operate? Replace the gear rack F/L. Does the opener door operate? Check the assembly status of the Does the arm assembly F/L operate? opener door.
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DECK MECHANISM DISASSEMBLY Fig. 5-1 Fig. 5-2 1. Holder Clamp (Fig. 5-1) 2. Tray Disc (Fig. 5-2) 1) Release 2 Screws(S1). 1) Insert and push a Driver in the emergency eject 2) Unhook 2 Locking Tabs(L1). hole(A) at the right side, or put the Driver on the 3) Lift up the Holder Clamp and then separate it from the Lever(B) of the Gear Emergency and pull the Lever(B) Base Main.
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DECK MECHANISM DISASSEMBLY Fig. 5-4 5. Frame Assembly Up/Down (Fig. 5-4) 8. Gear Loading (Fig. 5-4) 9. Guide Up/Down (Fig. 5-4) Note 1) Move the Guide Up/Down in direction of arrow(A) as Put the Base Main face down(Bottom Side) Fig.(A) 1) Release the Screw(S4) 2) Push the Locking Tab(L5) down and then lift up the 2) Unlock the Locking Tab(L3) in direction of arrow and...
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Vcr starts to play movie and then stops
Vcr starts to play movie then stops