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Toshiba W808 Service Manual

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See also: Owner's Manual
SERVICE MANUAL
NC MECHANICAL DECK
VIDEO CASSETTE RECORDER
General Descriptions
General Descriptions
Adjustment Procedures
Adjustment Procedures
Servicing Diagrams
Servicing Diagrams
Parts List
Parts List
FILE NO. 110-200010
W-808
Jun., 2000 Y

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  • Page 1 FILE NO. 110-200010 SERVICE MANUAL NC MECHANICAL DECK VIDEO CASSETTE RECORDER W-808 General Descriptions General Descriptions Adjustment Procedures Adjustment Procedures Servicing Diagrams Servicing Diagrams Parts List Parts List Jun., 2000 Y...

  • Page 2: Safety Precautions

    SAFETY NOTICE SAFETY PRECAUTIONS LEAKAGE CURRENT CHECK Plug the AC line cord directly into a 120V AC outlet (do Measure the AC voltage across the 1500 Ω resistor. not use an isolation transformer for this check). Use an The test must be conducted with the AC switch on and AC Voltmeter, having 5000 Ω...
  • Page 3 Adjustment Procedures Servicing Diagrams Parts List Adjustment Procedures Parts List Servicing Diagrams SECTION 1 GENERAL DESCRIPTIONS 1. OWNER'S MANUAL...
  • Page 4 Video Cassette Recorder W-808 W-804 OWNER’S MANUAL PLAY POWER EJECT STOP PROG.TV PAUSE/STILL This publication is printed on recycled paper 70971856...

  • Page 5: Safety Precautions

    Address: 1420 Toshiba Drive, Lebanon, TN37087 Telephone: 615-449-2360 User Installer Caution: Changes or modification made to this equipment not expressly approved by Toshiba Corporation or parties authorized by Toshiba Corporation could void the user’s authority to operate the equipment. Note to CATV system installer: This reminder is provided to call the CATV system installer’s attention to Article 820-40 of the...

  • Page 6: Important Precautions

    By using S-VHS ET it is possible to record and play back with S-VHS picture quality on VHS cassettes with this VCR. ® As an E Partner, TOSHIBA has determined that this product or NERGY product model meets the E ®...

  • Page 7: Important Safety Instructions

    IMPORTANT SAFETY INSTRUCTIONS CAUTION: PLEASE READ AND OBSERVE ALL WARNINGS AND INSTRUCTIONS GIVEN IN THIS OWNER’S MANUAL AND THOSE MARKED ON THE UNIT. RETAIN THIS BOOKLET FOR FUTURE REFERENCE. This set has been designed and manufactured to assure personal safety. Improper use can result in electric shock or fire hazard.
  • Page 8 6. Water and Moisture Do not use this product near water - for example, near a bath tub, wash bowl, kitchen sink, or laundry tub; in a wet basement; or near a swimming pool and the like. 7. Cleaning Unplug this product from the wall outlet before cleaning. Do not use liquid cleaners or aerosol cleaners.
  • Page 9 IMPORTANT SAFETY INSTRUCTIONS 12. Lightning For added protection for this product during storm, or when it is left unattended and unused for long periods of time, unplug it from the wall outlet and disconnect the antenna or cable system. This will prevent damage to the product due to lightning and power-line surges.

  • Page 10: Table Of Contents

    Contents INTRODUCTION Variable Speed Playback ....23 • Picture Search Provides important notes and general explanation of the VCR, including names of the • Still Picture buttons, jacks, etc. • Slow-motion Picture • Frame Advance SAFETY PRECAUTIONS ....2 • Double Speed Playback IMPORTANT PRECAUTIONS ....

  • Page 11: Identification Of Controls

    INTRODUCTION Identification of Controls See the page in for details. This manual shows the names of buttons in italics. Front Panel CHANNEL PLAY EJECT Cassette compartment STOP POWER PLAY SHUTTLE POWER c EJECT CHANNEL STOP LINE IN 2 PAUSE/STILL LINE IN 2 VIDEO L-MONO-AUDIO-R S-VIDEO...

  • Page 12: Vcr Display

    VCR Display VCR indicator Timer recording indicator Cassette indicator REMAIN indicator S-VHS indicator OFF indicator POWER indicator S-VHS ET indicator POWER REMAIN AM PM Hi-Fi (L/R) indicators L: Left channel R:Right channel TIMER OFF: Normal track Multifunctional indicator REC (Recording) DT (Digital Auto Tracking) indicator indicator Channel indicator...

  • Page 13: Preparation

    PREPARATION How to Use the Remote Control This section explains how to get ready for remote control operation. Whenever you operate the VCR, press VCR to set the remote control operating the VCR. Setting up the Remote Control Open the battery compartment on the front of the Remote Control by pressing on the centre of the slide cover and pull off in one motion in the direction of the arrow.

  • Page 14: Connections

    PREPARATION Connections Before you use this VCR, it is necessary to connect it to your TV. Several ways of connecting are available depending on your use of TV or cable box. Select one which is applicable to your equipment. Antenna/VCR/TV Connection Disconnect the antenna cable from your TV and connect it to the RF IN terminal on the VCR.
  • Page 15 Connections (continued) S-VIDEO Connection The S-VIDEO jack is also available to connect to your TV. When connected your TV using the S-VIDEO OUT jack To watch video pictures, set the video input mode on your TV. For the video input mode, refer to the manual of your TV.
  • Page 16 This set-up will enable you to: – watch an unscrambled or scrambled channel while recording it. – record any channels through the cable box. Cable Box You will need to: • set TV channel 3 or 4 to receive video signals. (See page 11.) •...

  • Page 17: Auto Set Up

    PREPARATION Auto Set Up The Auto Set Up function automatically sets the tuner channels and clock when power is first connected to the VCR. Preparation • Turn on the TV, and select the video channel (3 or 4), or the video input mode if you made the Audio/Video connection (page 11).

  • Page 18: Initial Settings Using On-Screen Display

    PREPARATION Initial Settings Using On-screen Display Language selection must be set first when the VCR is first plugged in, or after it encounters a power failure. You can also easily make necessary settings using the on-screen displays. Preparation • Turn on the TV, and select the video channel (3 or 4), or the video input mode if you made the Audio/Video connection (page 11).
  • Page 19 Initial Settings Using On-Screen Display (continued) Optional settings on the SET UP screen 2 Page 28 PROGRAM SET UP PRESET Page 29 S - VHS REC S - VHS ET With “D ” selected (see page 21), move down here to obtain a PLAY “FI E”...

  • Page 20: Setting The Clock

    Setting the Clock Press ENTER to start the “AUTO” clock set feature. Example: To set the clock to 2:30 p.m. on After a while, the VCR automatically updates August 25 (summer time) 2000. the clock using the data broadcast by the local TV stations.

  • Page 21: Storing Channels On The Vcr

    PREPARATION Storing Channels on the VCR This section is required if you receive only normal TV or unscrambled cable channels, or use a cable box between your TV and the VCR. Incoming Antenna/Cable (CATV) Signals The VCR scans through all receivable TV and CATV channels and stores only the active ones in your area into the memory.
  • Page 22 Adding or erasing channels 3) Enter a channel number of 1 to 125 using number buttons . Adding channels For more than 100 number, first press 100 . If a desired channel cannot be scanned For CATV channels, refer to the chart below. automatically because of a weak signal, it can be (For other orders, check with your cable added to the memory.

  • Page 23: Video Cassette Use

    PREPARATION Video Cassette Use Video Cassette Use Loading a cassette Push the cassette into the cassette compartment with the window side facing up and the label side towards the front. The VCR is automatically turned on. The indicator will appear in the VCR display. Ejecting a cassette Press EJECT .

  • Page 24: Playback

    PLAYBACK Playback This VCR can also play back a tape recorded in S-VHS or S-VHS ET format. This section explains the basic playback operation. Preparation • Select the video channel (3 or 4) or video input mode on the TV. •...
  • Page 25 Playback (continued) S-VHS Playback Load a cassette recorded in S-VHS. POWER The “ ” indicator will light on the VCR display. Power is turned on. If the cassette has no safety tab, playback starts automatically. PLAY/x2 PLAY/x2 Press PLAY/x2 to start playback. ENTER POWER STOP...

  • Page 26: Variable Speed Playback

    PLAYBACK Variable Speed Playback You can play back a tape at various tape speeds. Picture Search A tape runs at 5 times or 7 times the normal playback speed so that you can quickly locate a particular scene. Press FF or REW during playback. The tape runs at 5 times the normal playback speed.

  • Page 27: Frame Advance

    Variable Speed Playback (continued) Frame Advance Double Speed Playback A picture advances frame by frame. A tape runs at twice the normal speed. Press PLAY/x2 during still playback. Press PLAY/x2 during playback. Each time you press PLAY/x2 , the picture The picture runs at twice the normal playback advances one frame.

  • Page 28: Useful Functions In Tape Operation

    PLAYBACK Useful Functions in Tape Operation These functions will help your playback. Counter Function You can view the clock, linear time counter or tape remaining time in the VCR display or on the TV screen. DISPLAY Each time you press REMAIN/COUNTER , the VCR display changes in sequence as follows: PROG.

  • Page 29: Index Search Function

    Useful Functions in Tape Operation (continued) Index Search Function The VCR can find a point where a registered index signal is on a tape and play back for about 5 seconds. You can easily locate the desired program by inputting the index signal. PLAY/x2 ENTER Index search...

  • Page 30: Recording

    RECORDING Recording a TV Program This VCR can record in VHS, S-VHS and S-VHS ET. This section explains the basic recording operation. Preparation • Select the video channel (3 or 4) or video input mode on the TV. • If you record cable channels via the cable box, finish the cable box set-up (pages 33-36), and turn on the cable box.

  • Page 31: S-Vhs (Supervhs) And S-Vhs Et Recording

    RECORDING S-VHS (Super VHS) and S-VHS ET Recording S-VHS allows you to make high quality video recordings with a horizontal resolution of 400 lines compared with 240 lines of resolution of normal VHS recordings. To Record in S-VHS Mode Cassette marked with “S-VHS” should be used. Load a cassette with the safety tab attached.

  • Page 32: To Record In S-Vhs Et Mode

    To Record in S-VHS ET Mode This VCR is equipped with Super VHS ET that makes it possible to record with S-VHS picture quality on VHS cassettes. Load a cassette with the safety tab attached. Press TV/VCR so that the “VCR” POWER indicator appears in the VCR display.

  • Page 33: Timer Program Recording

    RECORDING Timer Program Recording The programmable timer allows you to record up to 6 different programs over one month. Preparation • Select the video channel (3 or 4) or video input mode on the TV. • Make sure that the clock is set correctly (page 17). •...
  • Page 34 Move to the next using FF , and set PROGRAM SET UP PRESET the recording date using PLAY/x2 or CH DATE 25 8 / 30 – : –– – : –– STOP . –– – / –– – : –– –...
  • Page 35 Timer Program Recording (continued) Confirming the timer programs If a power failure occurs during the (in the timer standby mode) timer program recording (including VCR Plus+ C system recording 3 ® Press PROG. . (page 35)) The screen for confirming will appear. •...

  • Page 36: Vcr Plus+ C System Set-Up

    RECORDING 3 ® VCR Plus+ C system Set-up 3 ® VCR Plus+ C system is a timer recording system for an easier programming that requires you only to enter a PlusCode ® programming number assigned to a desired program. This section explains the 3 ®...

  • Page 37: Guide Channel Setting

    VCR Plus+ C system Set-up (continued) ® Preparation • Select the video channel (3 or 4) or video input mode on the TV. • If you record cable channels, finish the cable box set-up (pages 37 – 40). • Prepare the list like below. Example Guide channel number Your home channel number (on the channel line-up...

  • Page 38: Vcr Plus+ C System Recording

    RECORDING 3 ® VCR Plus+ C system Recording 3 ® After performing the VCR Plus+ C system set-up, you can easily program a recording simply by entering the PlusCode ® programming number. The numbers are published in the TV listings of newspapers, TV guide magazine, etc.
  • Page 39 VCR Plus+ C system Recording (continued) ® Press ENTER . PROGRAM SET UP PRESET The program setting is now memorized. CH DATE 25 8 / 30 9 : 30 10 : 00 • If your cable box is not remote- ––...

  • Page 40: Cable Box Set-Up

    RECORDING Cable Box Set-up The VCR can directly control channel selecting of the connected cable box. Cable Box Control Connection Type This VCR needs to be connected to a cable Type A box equipped with an infrared wireless remote control. You can select cable channels from the cable box by operating this VCR.
  • Page 41 Cable Box Set-up (continued) Preparation • Select the video channel (3 or 4) or video input mode on the TV. • Set “TV/CATV” on the CH MEMORY screen to “CATV” (page 17). Cable Box Set-up Press PROG. to display the MENU screen. Select “PRESET”...
  • Page 42 Select “BRAND TYPE” using STOP , and enter a brand code of your cable box using number buttons . Refer to the table on the next page. Example: For a TOSHIBA cable box, identified by number 36. Cable box display PROGRAM...
  • Page 43 Table of cable box brand codes Brand name of your Brand name of your Brand code Brand code cable box cable box Telecaption Toshiba Anvision 13, 20, 21, 22, 23, 24, 25, Teleview 4, 6, 32, 42, 78 Texscan 18, 19 26, 58, 62, 84...

  • Page 44: Dss ® Satellite Receiver Set-Up

    RECORDING ® Satellite Receiver Set-up ® The VCR can directly control channel selecting of the connected DSS satellite receiver. ® Satellite Receiver Control Connection Type ® This VCR needs to be connected to a DSS Type A satellite receiver equipped with an infrared Satellite wireless remote control.
  • Page 45 ® Satellite Receiver Set-up (continued) Preparation Select the video channel (3 or 4) or video input mode on the TV. Satellite Receiver Set-up ® Press PROG. to display the MENU screen. Select “PRESET” using FF or REW , Number PROGRAM SET UP PRESET and press ENTER .
  • Page 46 Select “BRAND TYPE” using STOP , and enter a brand code of your DSS ® satellite receiver using number buttons . Refer to the table on the next page. Example: For a TOSHIBA DSS ® satellite receiver, identified by number 99. VCR display...

  • Page 47: Mts Broadcast Compatibility

    RECORDING MTS Broadcast Compatibility This VCR can receive or record MTS (Multichannel TV Sound) broadcasts. By connecting the VCR to your stereo system or stereo TV, you will experience the SAP or stereo sound. Preparation Connect a stereo TV or stereo system to the AUDIO OUT jacks of the VCR. Recording the SAP/Stereo Broadcast On the SET UP screen (page 15), SET UP...

  • Page 48: Simulcast Recording

    RECORDING Simulcast Recording When TV program such as MTV, HBO or MAX is being simulcast in FM stereo in your area, the VCR can also record the simulcast sound from an FM stereo tuner or receiver onto the Hi-Fi track and normal track.

  • Page 49: Additional Information

    ADDITIONAL INFORMATION Multi Brand Remote Control The remote control can be compatible with various brands of TV by setting their control codes. The TOSHIBA code has initially been set to control TOSHIBA TVs. Setting Control Codes CH/TRK Press TV to set the remote control operating your TV.
  • Page 50 Table of Brand Codes Brand name of your TV Brand name of your TV Brand Code Brand Code Toshiba Proton Bell & Howell Pulser Carver Quasar 07, 15 Celebrity Radio Shack Citizen Curtis Mathes 09, 12 Realistic 09, 11, 13...

  • Page 51: Before Calling Service Personnel

    ADDITIONAL INFORMATION Before Calling Service Personnel Check the following symptoms before requesting servicing. No power. The desired sound is not heard, such as SAP, stereo, or regular sound. • The power cord is not plugged in. • Setting of sounds is not correct. –...
  • Page 52 The remote control does not work properly. • The batteries are exhausted. – Replace all batteries. (page 10) • The remote control is operated beyond the operating range. – Make sure the remote control is within 30° of the remote sensor on the VCR. (page 10) •...

  • Page 53: Specifications

    Specifications Power supply: 120 V AC, 60 Hz Power consumption: 25 W (For W-808 only) 24 W (For W-804 only) 430 × 96.5 × 314 mm (W.H.D.) External dimensions: Mass: 4.2 kg Channels received: VHF: Channels 2–13 UHF: Channels 14–69 CATV: Channels 1–125 UHF/VHF: 75 Ω...

  • Page 54: Limited Warranty

    LIMITED WARRANTY TOSHIBA VIDEO CASSETTE RECORDER Toshiba America Consumer Products, Inc. (“TACP”) and Toshiba Hawaii Inc. (“THI”) make the following limited warranties. These limited warranties extend to the original consumer purchaser or any person receiving this set as a gift from the original consumer purchaser and to no other purchaser or transferee.
  • Page 55 Canadian consumers are requested to complete the special Canadian “Warranty Registration Form” enclosed and forward this completed form with a copy of bill of sale to TOSHIBA OF CANADA to “Register and Validate” their warranty. Product must be purchased from an Authorized Canadian Dealer.
  • Page 56 General Descriptions Servicing Diagrams Parts List General Descriptios Servicing Diagarms Part List SECTION 2 ADJUSTMENT PROCEDURES 1. MECHANICAL ADJUSTMENT 1-1. Mechanical Parts Location 1-2. Servicing Jig List 1-3. Main Parts Servicing Time 1-4. Mechanism Check Method 1-5. Mechanical Deck Removing and Mounting Method 1-6.
  • Page 57 1. MECHANICAL ADJUSTMENT 1-1. Mechanical Parts Location Head cleaner ACE head Slip ring assembly No.8 guide cap Pinch roller Impedance roller Cylinder assembly FE head Loading motor T slider S slider No.9 guide lever Tension lever FL cam gear S brake T brake Band brake T reel table...
  • Page 58 Capstan motor Worm gear T loading lever holder assembly Worm wheel T loading lever assembly Reel belt Loading drive gear Joint gear 1 Tension drive Joint gear 2 lever Cam slider Up/down lever S-VHS switch Holder clutch assembly Pinch drive lever Fig.
  • Page 59 1-3. Main Parts Servicing Time 1. Part replacement time differs from servicing life time of each part. 2. Following table is prepared based on a standard condition (room temperature, room humidity). The replacement time will be varied depending upon operation environment, using methods, operation duty. 3.
  • Page 60 1-4. Mechanism Check Method Does the loading motor and the If the abnormal condition is caused by the mechanism Loading motor is worm wheel rotate without abnormal. a cassette after turning itself, analyze the cause according to the following the power ON? procedures.
  • Page 61 1-4-4. Check by Defective Analyzing Table Note: If the abnormality causes the mechanism abnormal • After replacing the defective parts according to the condition, presume, confirm and treat the defective procedure of the treatment method for the damage according to the defective analyzing table. and phase mismatch of mechanical part, check the operation of the mechanism again, since the same (or (1) Manual Mechanism Operation (Mode Shift) Method...
  • Page 62 Table 1-4-2 Defective analyzing table Case Defective phenomenon (Main items) Presumed cause (Main cause) Check method Power does not turn on. Loading <General> (1) Check the mode shift "Cas- operation is defective. sette out « FF/REW position" (1) Mechanism stops due to mechanical phase can be performed when turning Mode shift operation is defective.
  • Page 63 1-4-5. Unloading Method of Cassette in Manual 1-4-6. Check Method of Each Operation Mode without Loading the Cassette The mechanical deck can not be removed at the condition the cassette is loaded, since one of screws for 1. Put some tapes on both left and right sides of the mounting the mechanism deck with the chassis is cassette holder so that the start/end sensors are not located under the cassette.
  • Page 64 1-5. Mechanical Deck Removing and Mounting Method 1-5-1. Cabinet Removal 1-5-2. Mechanical Deck Removal 1. Unplug the power supply plug (1) from the outlet. 1. Remove the cabinet. (Refer to section 1-5-1, Cabinet 2. Remove the three screws (3) securing the Top cover Removal.) (2).
  • Page 65 6. Remove the power supply cord holder (4) from the chassis. 7. Remove the two screws (5) to detach the rear panel(6). 8. Remove the two screws (7) to detach the main PC board (8) with KDB PC board(9). Main pc board (8) Power supply Screw (7) Screw (7)
  • Page 66 1-6. Main Parts Replacement Lock lever (1) Guide groove 1-6-1. Door Open Lever Replacement Cassette holder 1. Release the claw (1) of the door open lever (2) assembly (2) inserted to the hole at the left lower of the right side mechanical deck with the door open lever (2) turned to the arrow direction.
  • Page 67 1-6-4. FL Arm Lever Replacement 1. Remove the door open lever. (Refer to item 1-6-1.) Worm wheel (10) 2. Remove the FL cassette guide assembly. (Refer to Boss (3) of mechanical deck item 1-6-2.) FL cam gear (7) 3. Remove the cassette holder assembly. (Refer to item 1-6-3.) 4.
  • Page 68 13. When mounting the FL cam gear (7), align the mark of the FL cam gear (7) with the center of the worm wheel (9). FL cam gear (7) Apply grease to the Mark shaded portion Worm wheel (9) Fig. 1-6-7 FL drive slider Fig.
  • Page 69 1-6-6. Worm Gear, Worm Gear Holder, Loading Motor Apply grease to the shaded portion and Worm Wheel Replacement 1. Release the claw (1) of the worm gear holder (2) from the cutout portion of the mechanical deck by bending it to the arrow direction, and remove the worm gear holder (2) by pulling downward.
  • Page 70 7. Remove the S, T loading lever assemblies (4) and (5). 8. When removing the pinch drive lever (6), first, remove the cassette door guide, pinch assembly, and the joint lever (Refer to item 1-6-13.), and then remove the T reel table (Refer to item 1-6-11.). Next, pull out the pinch drive lever (6) after turning Apply grease to the it counterclockwise from the bottom side of the...
  • Page 71 1-6-8. Tension Lever, Band Brake and Tension Sleeve Replacement 1. Remove the S brake. (Refer to item 1-6-9.) 2. Remove the tension spring (1). 3. Lift up slightly the hole side of the tension sleeve (2) mounted to the mechanical deck, and turn it to the left or right direction, and then remove the tension Tension Tension...
  • Page 72 4. Replace each part to new ones. Holder clutch Stop ring (3) assembly (4) 5. Mount it in the reverse order of removal. Notes: • Check that the pad for T brake lever assembly and compression spring (7) are attached. Apply a drop of oil When mounting the T brake lever assembly, do not Spring...
  • Page 73 1-6-12. S, T Slider Assemblies Replacement Note: 1. Remove the S, T loading lever assemblies. (Refer to • Check the spring of the holder clutch assembly is set item 1-6-7.) correctly. 2. Remove the S brake. (Refer to item 1-6-9.) 3.
  • Page 74 No. 9 guide post (10) Pinch assembly (3) Brim of the Capstan motor Cassette door base. shaft guide (2) No. 9 guide spring Flange of the No.9 Pinch drive guide lever. lever (6) Claw (1) (Without spring) Fig. 1-6-33 Type a Pinch drive spring (7) Small hole Brim of the...
  • Page 75 1-6-14. FE Head Replacement 1. Remove screw (1) on the FE head (2), and remove the ACE head Boss (6) of FE head (2). assembly (3) mechanical deck 2. Replace the part with new one. Slit (B) 3. Mount it in the reverse order of removal. 4.
  • Page 76 1-6-17. Slip Ring Assembly Replacement Notes: 1. Remove two connectors (1) and (2) (cylinder side and • Take care not to stick the grease, oil and etc. on the PC board side) of the slip ring assembly (3). roller (4). •...
  • Page 77 1-6-18. Cylinder Holding Plates Replacement Notes: 1. Remove the head cleaner assembly. (Refer to item 1- • Tightening order of the securing screws (1), (2) and 6-16.) (3) is 294 to 392 mN•m (3 to 4kg•cm). 2. Remove three securing screws (1), (2) and (3) on the •...
  • Page 78 Notes: <Replacement> 1. Remove the slip ring assembly. (Refer to item 1-6-17.) • When remounting the cylinder holding plate (4), 2. Remove the head cleaner assembly. (Refer to item 1- after confirming that the FPC (1) is hooked at the 6-16.) groove on the lower head assembly properly, insert 3.
  • Page 79 1-6-21. No. 8 Guide Cap Replacement 1. Press the No. 8 guide cap for replacement forcibly after pulling out the No. 8 guide cap (1) from the No. Screws (2) 8 guide (2). 2. Mount the No. 8 guide cap (1) by facing the slant surface to cassette side.
  • Page 80 1-7. Check and Adjustment 1-7-2. Reel Torque Check (1) Reel Torque 1-7-1. Check of Tension Post Position 1. REV......supply side Poor torque may not wind the tape. On the other 1. Turn the worm wheel clockwise after removing the cassette holder assembly on the front loading hand, excessive torque will cause damage to the tape mechanism, and set the cam gear at playback mode.
  • Page 81 <Precautions for Use of Torque Cassette (KT-300NR)> 1. Before loading a torque cassette in a VCR, always remove tape slack. The tape slack can be removed by rotating the reel in the cassette to its take-up direc- tion. (The tape tends to slack since there is no reel brake on the torque cassette.) 2.
  • Page 82 1-7-3. Tape Transport System Adjustment (1) Location of Tape Transport Adjustment The tape transport system has been precisely adjusted in <Adjustment Reference> the factory, so only when some defective phenomenon Lower flange height of No.8 guide is used as the basic occurs such as noise observed on the screen and tape reference for the transport adjustment.
  • Page 83 (2) Tape Transport System Adjustment Flowchart Head assembly (cylinder) assembly replacement S, T slider assembly replacement ACE head assembly replacement Impedance roller replacement Capstan motor assembly Tension lever assembly replacement Clutch gear assembly replacement replacement Pinch lever assembly replacement FE head replacement Reel table replacement Checks for Hi-Fi models only.
  • Page 84 (3) Tape Transport System Adjustment c. Audio Head Azimuth Adjustment <Rough Adjustment> 1. Play back the 7 kHz audio signal on the alignment When the part(s) listed in Table 1-7-1 is replaced, tape in the SP mode. perform required adjustments by referring to procedures 2.
  • Page 85 3) Linearity Adjustment 7. If the envelope varies like NG figures as shown in 1. Play back the SLP mode white video signal on the Fig. 1-7-9, perform the adjustment again since it is alignment tape. abnormal. Smooth secondary curves are allowable level. Note: •...
  • Page 86 c. Audio Head Height Check 5) No. 9 Guide Lever Check Play back the audio signal as described in the step 4) a., 1. Set the VCR to Cue mode with T-160 tape (at and check if the audio envelope is flat. If not, repeat the beginning portion) loaded.
  • Page 87 7) Envelope Check b. Review mode 1. Make recordings and playback the tapes T-120 and Tape damage at No. 8 guide T-160 in SP and SLP modes and make sure the (a) ACE head assembly rough adjustment playback output envelope meets the specifications (Pinch assembly, No.
  • Page 88 1-8. Self-Check Function Table 1-8-2 Abnormal system control modes 1-8-1. Outline Standby Stop When a tape running stops or the VCR enters the power Rewind OFF mode, etc. due to some abnormality, the abnormal- Review ity is stored in the EEPROM and displayed on the display tube.
  • Page 89 2. ELECTRICAL ADJUSTMENT < Specified input output levels, and impedance > Video input: Negative sync, standard composite < Test equipment required > video signal 1 V(p-p), 75 Ω Adjustment will be performed with the following test Video output: Same as the video input, equipment.
  • Page 90 Alignment tape specifications (1) ST-N1 Item Record Contents Video signal Audio signal Mode Time *Check and adjustment of Servo circuit. Color bar 1 kHz *Check and adjustment of Video circuit. 10 min *Check and adjustment of Audio circuit. Mono Scope 3 kHz *Check and adjustment of Servo circuit.
  • Page 91 (3) ST-N5 Item Record Video signal Audio signal Contents Mode Time *Check and adjustment of Servo circuit. Color bar 1 kHz *Check and adjustment of Video circuit. 10 min *Check and adjustment of Audio circuit. Mono Scope 3 kHz *Check and adjustment of Servo circuit. 10 min Notes : 1.
  • Page 92 P990 P801 P506 Tuner Power Supply R008 ZX01 Main Board 2-1. PIF Circuit 2-1-1. In Case of IC01 is Replaced When IC01 (µPC1852) is replaced, the EEPROM data in the VCR is required to memorize a new set of default values as initial alignment.
  • Page 93 2-2. Servo Circuit 2-2-2. Pseudo-V 2-2-1. Playback Phase (PG) Adjustment Test point : Tracking UP-DOWN key Test equipment : TV monitor Test point : P506, P990 (Video Out) Test equipment : Oscilloscope 1. Self-recorded tape in SP mode is played and enter STILL mode.
  • Page 94 2-3. 3D-DNR(YCS6) Module 2-3-2. Troubleshooting Flow Chart Troubleshooting Flow Chart Procedure 1. 3D-DNR(YCS6) module (HU01 ) is checked with the First, check the power supply voltage and the installation following procedures, and if some defects are found, state of the 3D-DNR(YCS6) module. replace the module with new one.
  • Page 95 A : No display appears when playing-back, or large turbulence and noises occur. START Pin 12 of HU01 ( Check Y signal waveform. ) Pin 6 of HU01 ( Check color signal waveform. ) Pin 14 of HU01 Check the main unit ( Check sine wave signals.
  • Page 96 B : No color appears when playing-back, or color noises appear a lot. START Pin 6 of HU01 ( Check color signal waveform. ) Pin 14 of HU01 Check the main unit ( Check sine wave signals. ) Pin 3 and 4 of HU01 ( Check the pulses are generated in almost same intervals.
  • Page 97 General Descriptions Adjustment Procedures Parts List Adjustment Procedures General Descriptions Parts List SECTION 3 SERVICING DIAGRAMS 1. INSPECTION PROCEDURES 2. REMOVAL OF THE CABINET 3. LOCATION OF ELECTRICAL UNITS 4. PC BOARD SERVICING PROCEDURE 5. PART CONFIGURATION AND THEIR SYMBOLS 5-1.
  • Page 98 1. INSPECTION PROCEDURES Fig No. Operation steps Items to be confirmed Inspection block Block Circuit Diagram Diagram 1.AC Plug-in Clock setting Clock display Power (AC system) 7-1-1 8-2-1 Clock setting operation 7-3-1 8-1-1 2.Power SW ON Timer/counter, SP/SLP, TV/ Mode display lamp Power 7-1-1 8-2-1...
  • Page 99 2. REMOVAL OF THE CABINET 4. PC BOARD SERVICING PRO- CEDURE (1) Unplug the power supply plug (1) from the outlet. (2) Remove the three screws (3) securing the Top cover When performing service, connect each connection part (2). of the mechanical deck with the main PC board (two (3) Pull the Top cover (2) backwards for removing.
  • Page 100 5. PART CONFIGURATION AND THEIR SYMBOLS 5-1. Precautions For Part Replacement * In the schematic diagram, parts marked (ex. F801) are critical part to meet the safety regulations, so always use the parts bearing specified part codes (SN) when replacing them. * Using the parts other than those specified shall violate the regulations, and may cause troubles such as operation failures, fire, etc.
  • Page 101 5-4. Inductor Indication Unit None • • • H µ • • • µH • • • mH Tolerance None • • • ± 5 % • • • ± 0.1 % 10µ • • • ± 0.25 % • • • ± 0.5 % •...
  • Page 102 6. PRINTED WIRING BOARD AND SCHEMATIC DIAGRAM ACE Head W701A CONTROL HEAD AE HEAD AE HEAD AUDIO BIAS H301 VIDEO MODULE AUDIO BIAS AUDIO HEAD AUDIO REC / PB W701 AUDIO REC / PB CTL I / O CTL I / O AUDIO ERASE HEAD CTL BIAS CTL BIAS...

  • Page 103: Block Diagrams

    7. BLOCK DIAGRAMS 7-1. Power Supply Block Diagram T802 D838 RECTIFIER C833 EVER 11V SMOOTHING Q841 9V REG C835 D839 RECTIFIER EVER 9V SMOOTHING Q851 6.6 REG EVER 6.6V C832 C805 D820 RECTIFIER D802 D804 C806 R803 MB 24V D803 D805 L801 D806,C813...
  • Page 104 7-2. PIF Block Diagram S001 CH SW 3 IN 1 TUNER ANT IN ANT OUT VIDEO SIGNAL H001 TMLH2X006A AUDIO SIGNAL ANT IN RF OUT AUDIO IN 4.5MHz OSC CH SW RF MODULATOR MB(5V) SPLITER HA11560FP RF SW CONTROL RF VIDEO IN RESONATOR VIDEO IN TO VIDEO...
  • Page 105 7-3. KDB Display Block Diagram ZK01 25U39149SAN UK04 KDB UZ01 MAIN SK602 WK04 PX04 REC–INHIBIT 4 5 6 7 8 9 10 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 34 35 WK04 PX04 EVER +5V...
  • Page 106 Seg 1 Seg 2 RESET Seg 3 Seg 4 CS (STROBE) Seg 5 Seg 6 MAIN BOARD ICK01 Seg 7 (WK04) Seg 8 SOUT Seg 9 M35500 Seg 10 SCLK Seg 11 DRIVER Seg 12 Seg 13 Seg 14 KEY AN1 KEY AN0 B3 / B4 (Shuttle) B1 / B2 (Shuttle)
  • Page 107 – – – – – – – – – 2b,2c – – – – – – – – 3b,3c Fig. 7-3-3...
  • Page 108 7-4. EDS Block Diagram CSYNC VIDEO IN IC402 Z86131 Buffer HSYNC M.SYNC Dual Logic Clamp Lines 1 Drive COMP SYNC & MUX O / S Buffer SYNC Slicer Control Data Loop Slicer Filter V Lock Vss(A) Digital Data CLK II Logic Recovery Line &...
  • Page 109 7-5. Servo/Logic Block Diagram IC501 TMP93CU76F–1A29 MAIN MICROCOMPUTER Po. SAVE +5V +5VE EVER +5V Po. SAVE +5V BU 5.0V AD REF D.Vcc RMT OUT DRIVER S601 S–VHS SW SENSOR CTL IC505 BU 5.0V PST7025MT REC INH TO KDB START SENSOR RESET IC INPUT SU FG...
  • Page 110 7-5-1. IC501 Main Microcomputer Terminal Function TEST PIN TEST3(ALE) C.SYNC IN COMPOSITE SYNC INPUT(V SYNC DETECT) TAPE SPEED SELECTION FOR VIDEO & CONVENTIONAL AUDIO SP(L) LP(M) EP(M) C.FGA IN CAPSTAN AMPLIFIED FG.A INPUT CHIP SELECT SIGNAL SUB SIO STROBE C.FGB IN CAPSTAN AMPLIFIED FG.B INPUT RESET SIGNAL...
  • Page 111 7-5-2. IC501 Main Microcomputer Output Polarity IC501 MAIN MICROCOMPUTER OUTPUT POLARITY POWER MODE Un– Pin. SLOT SLOT Load STAND PLAY STILL R.STILL SLOW R.SLOW Load STOP PAUSE –ing –BY SP SLP SP SLP SP SLP SP SLP SP SLP SP EP SP SLP SP EP SP SLP...
  • Page 112 7-5-3. Logic Mode Shift Table Input COUNTER REMOCON MAIN COUNTER TAPE TAPE STOP PLAY SLOW STILL EJECT INDEX Current / TIMER POWER POWER RESET START Mode POWER POWER INDEX SHORT SHORT STOP EJECT SEARCH POWER POWER – EJECT STOP POWER POWER –...
  • Page 113 7-6. Video Block Diagram Q303 Q305 TO EDS IC BUFFER Q330,Q331 COLOR ROTARY PLAY SWITCH RF SW ICF02 REC H HU01 IC326 Q309 Q332 ENV DET ICF01 LEVEL ADJ FREQ IC325 EE Y+C / PB Y ENV COMP TRAP Q312 HASW IC322 SYNC...
  • Page 114 7-7. Hi-Fi Audio Block Diagram TUNER AUDIO (L) TO PIF TUNER AUDIO (R) I / O I C BUS DECODER MEMORY DECODER MOD AUDIO INPUT SELECTOR SDA1 LINE IN2 (L) BPF ADJ SCL1 LINE IN2 (R) HIFI ENV SERVO / LOGIC HIFI HIFI DET OUT OUTPUT...
  • Page 115 7-7-1. Audio Level Chart HIFI AUDIO LEVEL CHART [mV(rms)] [dB] (–8) –10 77.5 –20 (REC / PLAY) 24.5 –30 7.75 –40 2.45 –50 INPUT INPUT PLAY LINE LINE 400Hz SELECTOR OUTPUT SYSTEM INPUT SYSTEM SYSTEM OUTPUT mV(rms) Fig. 7-7-2 CONVENTIONAL AUDIO LEVEL CHART [mV(rms)] [dB] (–8)
  • Page 116 8. CIRCUIT DIAGRAMS 8-1. KDB Cricuit Diagram UK04 KDB RK73 CK73 0.047U CK74 0.047U F(–) P6 P5 P4 P3 P2 P1 F(+) UZ01 33 34 35 39 40 41 Main Board ZK01 70113184 25U39149SAN ZK02 GP1U291Q DIG15 / SEG10 DIG5 / P5 WK04 EJECT SW EJECT SW...
  • Page 117 8-1-1. Waveform for KDB Circuit Diagram ICK01, Pin 6 V : 10V/div H : 2ms/div ICK01, Pin 20 V : 10V/div H : 2ms/div ICK01, Pin 2 X-OUT V : 1V/div H : 10µs/div [8MHz] ICK01, Pin 12 STROBE V : 2V/div H : 2ms/div ICK01, Pin 13 V : 2V/div...
  • Page 118 (BASE IS W804) JP222 180p C322 C336 2 IN 1 OUT D GND (12.5) SWITCH F0.01 JP276 TUNING RF AMP TUNING LOC. W804 W808 LOC. W804 W808 1µ VIDEO SWITCH R846 Q330 YCS6 R320 RN1403 (20) UU01 KETSU JP325 ALL CLAMP...
  • Page 119 C307 C308 RF840 C845 C844 680n 22µ10V R844 100µ50V 1 / 4W 4R7 22µ10V DIFFERENTIAL LIST JP222 (BASE IS W804) (12.5) LOC. W804 W808 LOC. W804 W808 R846 R320 UU01 KETSU YCS6 R311 KETSU KETSU R356 D843 C846 C843 D844...
  • Page 120 Q314 N1402 WITCH VIDEO MODULE R348 OFF 5V P201 P202 P203 P204 P205 Q315 RN1402 RF17 RF19 SWITCH P990 JP288 CF34 JP270 RF18 (7.5) JP233 JP275 JP273 R962 R960 1000µ10V 820R 820R (12.5) CF35 CF42 R OUT B0.022 L OUT 1000µ10V V OUT JP269...
  • Page 121 RF19 JP288 RF18 R960 820R L OUT V OUT L IN V IN ICF06 MM1111XS RF12 RF11 AUDIO / VIDEO SWITCH ALL CLAMP V001 EARTH PLATE JP290 W101 CF28 JP299 RF62 FRONT JP311 100R (20) B0.01 70175754 (20) INSEL 1 CF29 ON / OFF5V CF30...
  • Page 122 [V] : EE PLAY / EE AUDIO (V) : PLAY REC AUDIO V : REC PLAY VIDEO REC VIDEO NOTE : The meaning of "KETSU" is "Not used". ON / OFF5V JP403 (20) CH SW (3CH) S001 MLH2X006A SSSF12 (4CH) 23344082 AUDIO IN 4.5M OSC...
  • Page 123 2SA1162Y C280 SEPARATOR C342 470p R342 R283 100R 1µ JP306 R343 (17.5) C344 470K R344 1µ JP687 ON / OFF 9V FULL JP249 W501 70175907 JP248 KETSU KETSU CTL I / O C.BIAS FE GND FE HEAD FE HEAD PV / PH OSD CLK W501A OSD DATA...
  • Page 124 1µ SWITCH VIDEO SWITCH R350 C337 910R B0.01 Q316 820R KETSU RJ008 Q318 2SC2712Y 2SC2712Y REAR SWITCH Q317 IC326 R357 CF02 2SC2712Y KETSU B0.01 R352 MM1031XM REC Y / Y+C 100K INSEL 2 L331 C346 C339 JPW99 JPF05 R354 C338 B0.01 (12.5) (15)
  • Page 125 SWITCH W301A 9 10 TUNER VIDEO OUT JP005 REAR (10) CF02 B0.01 ON / OFF 9V ON / OFF 9V INSEL 2 JPW99 JPF05 (12.5) (15) JP337 (20) INSEL 1 JPF04 FRONT (15) ON / OFF5V JP924 JP317 JP923 (20) (10) JP633 JP616...
  • Page 126 JP912 (12.5) 9 10 JP926 TV / VCR POW ON / OFF SIG SERVO MODE SERVO MODE AUDIO MODE VIDEO MODE JP012 JP014 LOCATION PLAY LOCATION PLAY LOCATION PLAY LOCATION PLAY (20) (20) – – – – – – – 4.93 IC502 0 TO 5V PULSE...
  • Page 127 8-2-1. Waveform for Main Circuit Diagram Selvo/Logic Video/Audio Power H001, Pin 1 T802, Pin 8 C-17 ICD01, Pin 15 D-20 IC501, Pin 50 IC506, Pin 4 P202, Pin 5 IC920, Pin 14 J-12 H-15 CTL. AMP PLAY LINE OUT AUDIO IN SDA1 SP CUE (x7) C SYNC...
  • Page 128 9. PC BOARDS 9-1. Main PC Board (UZ01) Fig. 9-1-1...
  • Page 129 9-2. FCB PC Board (UK02) CK99 SK21 WK11 SK22 Fig. 9-2-1 9-3. JSB PC Board (UK03) Fig. 9-3-1...
  • Page 130 9-4. KDB PC Board (UK04) Fig. 9-4-1...
  • Page 131 General Descriptions Adjustment Procedures Servicing Diagrams Servicing Diagrams General Descriptions Adjustment Procedures SECTION 4 PARTS LIST 1. SAFETY PRECAUTION 2. NOTICE 3. ABBREVIATIONS 3-1. Integrated Circuit (IC) 3-2. Capacitor (Cap) 3-3. Resistor (Res) 4. EXPLODED VIEWS 4-1. Packing Assembly 4-2. Cabinet Assembly 4-3.

  • Page 132: Safety Precaution

    1. SAFETY PRECAUTION The parts identified by ! ( ) mark are critical for safety. Replace only with part number specified. The mounting position of replacement is to be identical with originals. The substitute replacement parts which do not have the same safety characteristics as specified in the parts list may create shock, fire or other hazards.
  • Page 133 4. EXPLODED VIEWS A703 4-1. Packing Assembly A702 Y101 Y103 Y104 Y105 Y107 Y111 Y112 Y113 Y125 Y127 A701 Fig. 4-1-1 4-2. Cabinet Assembly A104 A104J UK02 UF01A A101D A101H A106A A102C A106 UK03 A101M A107 Fig. 4-2-1...
  • Page 134 4-3. Chassis Assembly B001A A105 UK01B H301 UZ01 HU01 UK04 UZ01B UK01A B603C B601D B603B B603 B601D Fig. 4-3-1...
  • Page 135 4-4. Mechanism Assembly (1) G051 G050 G001S G104 G056 G661 G534 G536 G663 G532 G530 G540 G052 G610 B256 G666 G538 B254 G428 G510 G555 G458 G480 B239 G420 G450 B474 K546 G527 G520 B478 B473 B488 B500 B458 B484 B460 B456 B464...
  • Page 136 4-5. Mechanism Assembly (2) K544 K490 K544 K502 K542 K350 K330 B248 K340 K250 K140 K110 K248 B570 B410 K240 K544 K180 B444 B446 K530 B448 B440 B238 B452 K470 B560 KC02 K224 K221 K200 K219 G546 G542 Fig. 4-5-1...
  • Page 137 5. PARTS LIST LOCATION PART NUMBER NUMBER DESCRIPTION - MECHANICAL PARTS - A101 70884720 Front Panel A101D 70896141 Cassette Door A101H 70356358 Spring A102C 70868920 Door A104 70814545 Top Cover A104J 70391703 Screw 3x6mm A105 70896091 Bracket A106 70885332 Knob A106A 70391356 Screw...
  • Page 138 LOCATION PART NUMBER NUMBER DESCRIPTION UF01A 70391356 Screw 3x10mm UK01A 70847112 Holder UK01B 70391706 Screw 3x12mm UZ01B 70391703 Screw 3x6mm W701 70175908 Y101 70971856 Owner's Manual English Y104 70061209 Sheet(Extended Service Plan) Y112 70148457 Remote Control Unit Y113 70168298 RF Cable Y125 70168273 Pin Cable...
  • Page 139 LOCATION PART NUMBER NUMBER DESCRIPTION - ELECTRICAL PARTS - HU01 70186882 3D-DNR(YCS6) Unit UK02 70185147 PC Board Assy - CAPACITORS - CK99 24590223 Cap,Plastic 0.022MF J 50V - RESISTORS - RJK91 24000824 Chip Jumper RK98 24871750 Res,Chip 75ohm J 1/8W RK99 24871750 Res,Chip...
  • Page 140 LOCATION PART NUMBER NUMBER DESCRIPTION RK43 24000824 Chip Jumper RK44 24872122 Res,Chip 1.2kohm J 1/16W RK575 24872472 Res,Chip 4.7kohm J 1/16W RK73 70422055 Res,Oxide Metal 3.3ohm 1/2W - MISCELLANEOUS - SK02 70145487 Push Switch SK04 70145487 Push Switch SK06 70145487 Push Switch SK08 70145487...
  • Page 141 LOCATION PART NUMBER NUMBER DESCRIPTION Q843 A6325549 Transistor 2SC2236-Y Q844 A6325549 Transistor 2SC2236-Y Q850 A6358832 Transistor 2SC3279-N(T2 Q851 23314141 Transistor 2SC3852 Q940 A6014040 Transistor,Chip RN2404 QH11 A6534145 Transistor 2SA1020-Y QH12 A6004020 Transistor,Chip RN1402 QL23 A6335470 Transistor,Chip 2SC2712-Y QL24 A6541130 Transistor,Chip 2SA1162-Y QL25 A6541130...
  • Page 142 LOCATION PART NUMBER NUMBER DESCRIPTION C003 24630023 Cap,Electrolytic 4.7MF M 16V C004 24797470 Cap,Electrolytic 47MF M 50V C005 24090077 Cap,OS 10MF M 16V C006 24815223 Cap,Chip 0.022MF K 50V C280 24781471 Cap,Chip 470pF J 50V C303 24781680 Cap,Chip 68pF J 50V C304 24774360 Cap,Chip...
  • Page 143 LOCATION PART NUMBER NUMBER DESCRIPTION C543 24092178 Cap,Chip 0.1MF K 25V C544 24815103 Cap,Chip 0.01MF K 50V C545 24630866 Cap,Electrolytic 47MF M 6.3V C547 24815103 Cap,Chip 0.01MF K 50V C548 24796220 Cap,Electrolytic 22MF M 35V C561 24630866 Cap,Electrolytic 47MF M 6.3V C571 24814103 Cap,Chip...
  • Page 144 LOCATION PART NUMBER NUMBER DESCRIPTION CD08 24630030 Cap,Electrolytic 0.1MF M 50V CD09 24815473 Cap,Chip 0.047MF K 50V CD10 24630033 Cap,Electrolytic 0.47MF M 50V CD11 24092178 Cap,Chip 0.1MF K 25V CD12 24630034 Cap,Electrolytic M 50V CD13 24630034 Cap,Electrolytic M 50V CD14 24630034 Cap,Electrolytic M 50V...
  • Page 145 LOCATION PART NUMBER NUMBER DESCRIPTION R319 24872102 Res,Chip 1kohm J 1/16W R320 24872102 Res,Chip 1kohm J 1/16W R321 24872152 Res,Chip 1.5kohm J 1/16W R322 24872152 Res,Chip 1.5kohm J 1/16W R323 24872223 Res,Chip 22kohm J 1/16W R324 24872302 Res,Chip 3kohm J 1/16W R325 24872241 Res,Chip...
  • Page 146 LOCATION PART NUMBER NUMBER DESCRIPTION R543 24872103 Res,Chip 10kohm J 1/16W R546 24366102 Res,Carbon 1kohm J 1/6W R547 24872102 Res,Chip 1kohm J 1/16W R548 24872472 Res,Chip 4.7kohm J 1/16W R549 24872472 Res,Chip 4.7kohm J 1/16W R555 24872472 Res,Chip 4.7kohm J 1/16W R559 24366221 Res,Carbon...
  • Page 147 LOCATION PART NUMBER NUMBER DESCRIPTION RE10 24872102 Res,Chip 1kohm J 1/16W RF10 24872472 Res,Chip 4.7kohm J 1/16W RF11 24872750 Res,Chip 75ohm J 1/16W RF12 24872750 Res,Chip 75ohm J 1/16W RF15 24872750 Res,Chip 75ohm J 1/16W RF17 24366750 Res,Carbon 75ohm J 1/6W RF18 24872750 Res,Chip...
  • Page 148 LOCATION PART NUMBER NUMBER DESCRIPTION ! P801 70175915 Power Cord 10A, 125V P990 70161164 Jack Q601A 70361714 Holder Q602A 70361714 Holder Q801B 70391355 Screw 3x8mm S001 23344082 Switch,Slide S601 23344330 Push Switch 1C1P S610 70145494 Switch,Cam ! T801 23211661 Coil,Line Filter TRF3192 ! T802 70213264...
  • Page 149 438B ALEXANDRA ROAD BLOCK B#06-01 ALEXANDRA TECHNOPARK SINGAPORE 119968...

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