Related Manuals for Toshiba SD-23VL
Summarization of Contents
TOSHIBA SERVICE MANUAL
DVD Video Player & Video Cassette Recorder
Manual for the Toshiba SD-23VB, SD-23VE, SD-23VL models.
SECTION 1: SUMMARY
Owner's Manual
User instructions for operating the DVD+VCR player.
Product Safety Servicing Guidelines
Safety guidelines for servicing video products to prevent hazards.
Servicing Precautions
General precautions to be followed during servicing procedures.
EEPROM IC Setting Information
Details on setting the EEPROM IC for optimal device operation.
Before Use
Precautions for Use
Guidelines for handling the unit, discs, and general precautions.
Notes on Discs
Important information regarding disc handling and playback compatibility.
Selecting the Viewing Source
How to select the output source (DVD or VCR) on the TV.
Front Panel and Display Window
DVD/VCR Selector Button
Button to select the output source for TV display.
Channel Programme Selectors
Controls for selecting TV channels.
Remote Control
DVD/VCR Select Button
Selects the output source (DVD or VCR) for TV viewing.
Numerical Buttons
Used for selecting numbered options in menus.
Rear Panel Connections
Aerial Connection
Connects the aerial for TV reception.
EURO AV2 Decoder Connection
Connects to external decoders or set-top boxes.
DVD/VCR Audio Outputs
Audio outputs for connecting to audio systems.
Connections
Connecting to a TV
Describes AV and RF connections to a television set.
S-Video Connection
How to connect using the S-VIDEO OUT jack.
Component Video Connection
Connects COMPONENT VIDEO OUT jacks for DVD exclusive output.
Connections (Continued)
Connecting to Optional Equipment
Connecting to amplifiers or receivers for audio.
Digital Multi-channel Sound
Digital multi-channel connections for enhanced sound.
Before Operation - VCR Part
Initial Preset Procedure
Steps for initial setup and automatic channel storing.
Automatic TV Station Tuning
Procedure for automatically tuning TV stations.
Before Operation - VCR Part (Continued)
Setting the Clock Manually
Manual procedure to set the date and time.
Setting the Colour System
Selecting the appropriate colour system for the TV.
Before Operation - VCR Part (Continued)
Using the Main Menu
Guide to navigating and using the main menu options.
Automatic TV Station Tuning
Procedure for automatically tuning TV stations.
Before Operation - VCR Part (Continued)
Manual TV Station Tuning
Steps for manually tuning weaker TV stations.
Changing TV Station Order
How to reorder stored TV stations.
Deleting TV Stations
Procedure for removing unwanted TV stations.
Before Operation - VCR Part (Continued)
Changing TV Station Order
How to reorder stored TV stations.
Deleting TV Stations
Procedure for removing unwanted TV stations.
Before Operation - DVD Part
General Explanation
Basic instructions for operating the DVD+VCR player.
On-Screen Display Operation
How to display and change playback status on the TV screen.
Before Operation - DVD Part (Continued)
Initial Settings
Setting personal preferences like language and picture.
Language Settings
Selecting disc menu, audio, and subtitle languages.
Picture Settings
Options for TV Aspect Ratio (Letterbox, Panscan, Wide).
Before Operation - DVD Part (Continued)
Sound Settings
Setting Digital Audio Output options.
Sample Frequency Settings
Changing sample frequency for audio output compatibility.
Other DVD Settings
Adjusting DRC, Vocal, PBC, Auto Play, BLE, Pluge, DNR.
Before Operation - DVD Part (Continued)
Parental Control
Setting ratings to restrict playback of unsuitable content.
Area Code Setting
Entering the country/area code for DVD rating standards.
Operation with Tape
Playing a Tape
Step-by-step instructions for playing video cassettes.
Auto Tracking
Automatic adjustment for optimal picture quality.
Picture Search
Rapidly winding tape to find specific points.
Slow Motion and Shuttle Playback
Adjusting playback speed for slow motion or shuttle effects.
Commercial Message Skip
Feature to skip commercial breaks during tape playback.
Optimum Picture Response (OPR)
Adjusts playback picture quality based on tape condition.
Operation with Tape (Continued)
One-Touch Timer Recording (OTR)
Starts recording immediately for a set duration or until tape end.
SP/LP Recording Speed
Selects Standard Play (SP) or Long Play (LP) recording speed.
Operation with Tape (Continued)
Timer Recording using On-Screen Display
Setting up to seven timer recording events via on-screen menus.
Video Programme System (VPS)
Ensures accurate recording start/end times, adjusting for broadcast changes.
Operation with DVD and Video CD
Playing a DVD and Video CD
Steps for inserting and playing DVD or Video CD discs.
General DVD/VCD Features
Basic playback features like Title, Chapter, Track navigation.
Moving to Another Title
How to select different titles on a DVD.
Moving to Another Chapter/Track
How to navigate between chapters or tracks.
Operation with DVD and Video CD (Continued)
General Features (Continued)
Features like Slow Motion, Random Play, Repeat functions.
Repeat A-B Function
Repeating a specific sequence within a title.
Time Search
Starting playback from a specific elapsed time.
3D Surround Effect
Simulates surround sound from stereo speakers.
Screen Saver
Displays a screen saver image when the player is idle.
Operation with DVD and Video CD (Continued)
General Features (Continued)
Zoom function for enlarging video images.
Marker Search
Memorizing and recalling specific points on a disc.
One Touch Replay
Quickly rewinding and replaying the last 10 seconds.
Special DVD Features
Accessing DVD menus for special features like angles, languages.
Camera Angle Selection
Changing the camera angle during DVD playback.
Operation with Audio CD and MP3 Disc
Playing Audio CD and MP3 Disc
Instructions for playing audio CDs and MP3 files.
Notes on MP3 Recordings
Compatibility requirements and file naming for MP3 playback.
Operation with Audio CD and MP3 Disc (Continued)
Pause Function
Pausing and resuming playback.
Moving to Another Track
Navigating to the next or previous track.
Repeat Track/All/Off Function
Setting repeat modes for tracks or entire discs.
Search Function
Searching for specific tracks or points on a disc.
Random Playback
Playing tracks in a random order.
Repeat A-B Function
Repeating a specific sequence within a title.
3D Surround Effect
Simulates surround sound from stereo speakers.
Changing Audio Channel
Selecting different audio channels or modes.
Operation with JPEG Disc
Viewing a JPEG Disc
Instructions for playing JPEG files from a disc.
Moving to Another File
Navigating to the next or previous JPEG file.
Still Picture Mode
Pausing the slide show for a still image.
Flipping the Picture
Horizontally or vertically flipping the displayed picture.
Rotating the Picture
Rotating the picture clockwise or counterclockwise.
Notes on JPEG Recordings
Important notes regarding JPEG file size, format, and naming.
Programmed Playback
Programmed Playback with Audio CD/MP3
Storing favorite tracks from CDs or MP3 discs in memory.
Programmed Playback with Video CD
Programming playback sequences for Video CDs.
Repeat Programmed Tracks
Setting repeat modes for programmed tracks.
Erasing Track from Program List
Removing individual tracks from the programmed playback list.
Erasing Complete Program List
Clearing all programmed tracks from the disc.
Additional Operation
Hi-Fi Stereo Sound System
Explains Hi-Fi stereo and NICAM digital stereo sound capabilities.
Blank Search Function
Locates the end of any recording by finding blank tape content.
On-Screen Display (F.OSD)
Displays current time, tape status, and operational modes on TV.
Tape Counter Memory Stop
Uses the digital tape counter to indicate recording positions.
Additional Operation (Continued)
Video Doctor (Self-Diagnosis)
Feature to inform about VCR problems via error messages.
Setting the Decoder
Instructions for connecting and using a pay-TV decoder.
Wide Screen Compatibility 16:9
Recording and playing back 16:9 aspect ratio programs.
Additional Operation (Continued)
Copying from DVD to VCR
Copying DVD content to VHS tape using REC/OTR button.
Recording from Another Video Recorder
Recording from an external source like another VCR or camcorder.
Troubleshooting
DVD or VCR Not Working Properly
Checks for causes of the unit not functioning correctly.
No Power Issues
Troubleshooting steps when the unit has no power.
DVD Player Not Working (Power On)
Diagnosing issues when power is on but DVD player is unresponsive.
No Picture Issues
Troubleshooting steps for when no picture is displayed.
No Sound Issues
Troubleshooting steps for when no audio is heard.
Troubleshooting (Continued)
Poor Picture Quality
Diagnosing and fixing issues with poor picture quality.
DVD Player Playback Issues
Troubleshooting steps when DVD playback fails to start.
Remote Control Not Working
Diagnosing and resolving problems with the remote control.
Video Tape Insertion Issues
Troubleshooting steps when a video cassette cannot be inserted.
No Hi-Fi Sound
Diagnosing issues when Hi-Fi sound is not available.
No NICAM Sound Recording
Troubleshooting NICAM sound recording problems.
Troubleshooting (Continued)
Video Head Cleaning
Procedure for cleaning video heads to improve picture quality.
SECTION 2: CABINET & MAIN CHASSIS
Exploded Views
Diagrams showing the assembly of the unit's parts.
Cabinet and Main Frame Section
Exploded view of the main cabinet and frame components.
Packing Accessory Section
List and diagram of included packing accessories.
Exploded Views
Cabinet and Main Frame Section
Exploded view of the main cabinet and frame components.
Exploded Views
Packing Accessory Section
List and diagram of included packing accessories.
SECTION 3: ELECTRICAL
VCR Part Electrical Information
Electrical adjustments, troubleshooting, block diagrams, and circuit diagrams for the VCR section.
DVD Part Electrical Information
Electrical troubleshooting, details, waveforms, block diagrams, and circuit diagrams for the DVD section.
Block Diagrams
Power (SMPS) Block Diagram
Block diagram of the power supply unit.
VCR Part
Electrical Adjustment Procedures
Procedures for adjusting servo and PG settings.
Electrical Troubleshooting Guide
Power (SMPS) Circuit Troubleshooting
Troubleshooting guide for power supply circuits (5.3VA, 12VA, 5.0V, 3.3V).
Servo Circuit Troubleshooting
Unstable Video in PB Mode
Troubleshooting steps for unstable video during playback.
Drum Motor Not Running
Diagnosing issues when the drum motor fails to run.
Y/C Circuit Troubleshooting
No Video in EE Mode
Troubleshooting steps when there is no video signal in EE mode.
Y(Luminance) Signal Missing in PB Mode
Diagnosing issues with missing luminance signal during playback.
Hi-Fi Circuit Troubleshooting
No Sound in EE Mode
Troubleshooting steps for no sound issues in EE mode.
Hi-Fi Playback Issues
Diagnosing problems during Hi-Fi playback.
Tuner/IF Circuit Troubleshooting
No Picture on TV Screen
Troubleshooting steps when there is no picture on the TV.
No Sound Issues
Troubleshooting steps when there is no audio output.
System Test and Debugging Details
MT1379 Main Clock (27MHz)
Oscilloscope waveform for the MT1379 main clock signal.
MT1379 & MT1336 Reset Signal
Oscilloscope waveform for reset signals and power control.
System Test and Debugging Details (Continued)
RS232 Waveform During Download
Oscilloscope waveform for RS232 signals during data download.
Flash R/W Enable Signal During Download
Oscilloscope waveform for flash memory read/write signals.
System Test and Debugging Details (Continued)
SDRAM Clock Signal
Oscilloscope waveform for the SDRAM clock.
Tray Open/Close Signal Waveforms
Oscilloscope waveforms for tray open and close signals.
System Test and Debugging Details (Continued)
Tray Close Waveform
Oscilloscope waveform illustrating the tray closing operation.
Tray Open Waveform
Oscilloscope waveform illustrating the tray opening operation.
System Test and Debugging Details (Continued)
SLED Control Signals (No Disc)
Oscilloscope waveforms for sled control signals when no disc is present.
Lens Control Signals (No Disc)
Oscilloscope waveforms for lens control signals when no disc is present.
System Test and Debugging Details (Continued)
Laser Power Control Signals (No Disc)
Oscilloscope waveforms for laser power control signals.
Disc Type Judgement Waveforms
Oscilloscope waveforms used to determine disc type.
System Test and Debugging Details (Continued)
Focus Waveform
Oscilloscope waveform illustrating focus control operation.
System Test and Debugging Details (Continued)
Spindle Control Waveform (No Disc)
Oscilloscope waveforms for spindle motor control.
System Test and Debugging Details (Continued)
Tracking Control Signals (System Checking)
Oscilloscope waveforms for tracking control system checks.
System Test and Debugging Details (Continued)
RF Waveform
Oscilloscope waveform illustrating the radio frequency signal.
MT1379 Audio Output (Optical/Coaxial)
Waveform related to MT1379 audio digital output.
System Test and Debugging Details (Continued)
MT1379 Video Output Waveform
Oscilloscope waveforms for MT1379 video output.
System Test and Debugging Details (Continued)
Audio Output from Audio DAC
Waveforms related to audio output from the Digital-to-Analog Converter.
SECTION 4: MECHANISM OF VCR PART
Deck Mechanism Parts Locations
Diagrams showing the location of VCR deck mechanism parts.
Deck Mechanism Disassembly
Step-by-step instructions for disassembling the VCR deck mechanism.
Deck Mechanism Adjustment
Procedures for adjusting various parts of the deck mechanism.
Maintenance/Inspection Procedure
Guidelines for routine maintenance and inspection of the VCR deck.
Mechanism Troubleshooting Guide
Troubleshooting common issues with the VCR mechanism.
Exploded Views
Visual diagrams of the VCR mechanism parts.
Deck Mechanism Parts Locations
Top View of Deck Mechanism Parts
Illustrated locations of parts on the top view of the deck mechanism.
Bottom View of Deck Mechanism Parts
Illustrated locations of parts on the bottom view of the deck mechanism.
Deck Mechanism Disassembly
Drum Assembly Disassembly
Instructions for disassembling the drum assembly.
Drum Motor Disassembly
Steps for removing the stator and rotor of the drum motor.
Deck Mechanism Disassembly
Figure A-2: Deck Mechanism Components
Diagram showing various deck mechanism components.
Deck Mechanism Disassembly
Plate Top Disassembly
Instructions for removing the plate top assembly.
Holder Assembly CST Disassembly
Steps for disassembling the holder assembly.
Opener Door Disassembly
Instructions for removing the opener door.
Bracket Assembly L/D Motor Disassembly
Steps for removing the bracket assembly for the loading/unloading motor.
Deck Mechanism Disassembly
Arm Assembly Cleaner Disassembly
Instructions for removing the arm assembly cleaner.
Head F/E Disassembly
Steps for disassembling the F/E head assembly.
Base Assembly A/C Head Disassembly
Instructions for removing the base assembly for the audio/control head.
Deck Mechanism Disassembly
Brake Assembly T Disassembly
Instructions for removing the T brake assembly.
Brake Assembly RS Disassembly
Steps for disassembling the RS brake assembly.
Arm Assembly Tension Disassembly
Instructions for removing the arm assembly tension mechanism.
Reel S / Reel T Removal
Information on removing the reel S and reel T.
Deck Mechanism Disassembly
Base Assembly P4 Disassembly
Instructions for disassembling the P4 base assembly.
Opener Lid Disassembly
Steps for removing the opener lid.
Arm Assembly Pinch Disassembly
Instructions for disassembling the arm assembly pinch.
Lever T/up and Arm T/up Disassembly
Steps for disassembling the lever T/up and arm T/up.
Deck Mechanism Disassembly
Belt and Motor Capstan Removal
Instructions for removing the belt capstan and motor capstan.
Lever F/R Disassembly
Steps for removing the F/R lever.
Clutch Assembly D35 Disassembly
Instructions for removing the clutch assembly.
Brake Assembly Capstan Disassembly
Steps for removing the brake assembly capstan.
Deck Mechanism Disassembly
Gear Drive and Gear Cam Removal
Instructions for removing gear drive and gear cam.
Gear Sector Disassembly
Steps for removing the gear sector.
Plate Slider Removal
Instructions for removing the plate slider.
Lever Tension Disassembly
Steps for disassembling the lever tension mechanism.
Lever Spring Removal
Instructions for removing the lever spring.
Deck Mechanism Disassembly
Gear Assembly P2 and P3 Removal
Instructions for removing gear assemblies P2 and P3.
Base Assembly P2 and P3 Removal
Steps for removing base assemblies P2 and P3.
Deck Mechanism Disassembly
Base Loading Disassembly
Instructions for removing the base loading mechanism.
Base Tension Disassembly
Steps for disassembling the base tension mechanism.
Arm Assembly Idler Disassembly
Instructions for removing the arm assembly idler.
Deck Mechanism Adjustment
Tools and Fixtures for Service
Lists necessary tools and fixtures for deck mechanism adjustments.
Deck Mechanism Adjustment
Mechanism Alignment Position Check
Procedure to check if the mechanism is in the correct position.
Deck Mechanism Adjustment
Preparation for Adjustment
Steps to set the deck mechanism to the loading state without tape.
Checking Torque
Measures tape transport torque in different operating modes.
Deck Mechanism Adjustment
Guide Roller Height Adjustment
Regulates tape height for proper running along the drum guide line.
Preliminary Adjustment (Guide Roller Height)
Initial adjustment of guide roller height.
Precise Adjustment (Guide Roller Height)
Fine-tuning the guide roller height and tracking control.
Deck Mechanism Adjustment
Audio/Control (A/C) Head Adjustment
Ensures accurate tape passing over audio and control tracks.
Preliminary Adjustment (Height/Tilt)
Initial adjustment of A/C head height and tilt.
Deck Mechanism Adjustment
Confirm Tape Path Smoothness
Checks tape path for folding or curling after A/C head adjustment.
Precise Adjustment (Azimuth)
Adjusting azimuth for maximum output and differential between frequencies.
X-Value Adjustment
Obtaining compatibility with other VCR models.
Deck Mechanism Adjustment
Adjustment After Drum/Video Head Replacement
Correcting roller guide and X-value shifts after replacing drum assembly.
Check Tape Travel After Reassembly
Verifying tape path and audio reproduction after reassembly.
Audio/RF Locking Time Check
Checks locking times for audio and RF signals.
Checking for Tape Curling or Jamming
Verifies smooth tape movement and proper counter performance.
Maintenance/Inspection Procedure
Check Before Starting Repairs
Inspecting lubrication and cleanliness of unit parts before servicing.
Maintenance/Inspection Procedure
Required Maintenance
Explains the need for precise VCR components and periodic inspection.
Scheduled Maintenance
Guidance on maintenance intervals based on usage.
Required Supplies for Maintenance
Lists necessary supplies like grease and cleaning patches.
Maintenance Procedure
Step-by-step cleaning instructions for video heads and tape transport systems.
Mechanism Troubleshooting Guide
Deck Mechanism Troubleshooting
Diagnosing issues related to auto stop and F/R modes.
Deck Mechanism Troubleshooting - Auto Stop
Troubleshooting steps for the auto stop function.
Deck Mechanism Troubleshooting - F/R Modes
Diagnosing issues with Forward/Reverse modes and motor rotation.
Mechanism Troubleshooting Guide
Mechanism Troubleshooting - Auto Stop (Play/Cue/Rev)
Troubleshooting auto stop issues during specific playback modes.
Mechanism Troubleshooting - Cassette Loading
Diagnosing problems related to cassette insertion and eject.
Mechanism Troubleshooting Guide
Mechanism Troubleshooting - Tape Presence Sensing
Troubleshooting issues related to tape presence sensing and motor operation.
Mechanism Troubleshooting Guide
Front Loading Mechanism Troubleshooting
Diagnosing issues with cassette insertion and ejection mechanisms.
Front Loading Mechanism - Cassette Insertion Issues
Troubleshooting steps when a cassette cannot be inserted.
Front Loading Mechanism - Cassette Ejection Issues
Diagnosing problems when the cassette does not eject.
Mechanism Troubleshooting Guide
Cassette Loading Troubleshooting (Continued)
Further troubleshooting for cassette loading issues.
Exploded Views
Front Loading Mechanism Exploded View
Exploded diagram of the front loading mechanism components.
Exploded Views
Moving Mechanism Section (1) Exploded View
Exploded diagram of the first part of the moving mechanism.
Exploded Views
Moving Mechanism Section (2) Exploded View
Exploded diagram of the second part of the moving mechanism.
SECTION 5: MECHANISM OF DVD PART
Contents
List of topics covered in Section 5.
Deck Mechanism Exploded View (DVD)
Exploded diagram of the DVD deck mechanism.
Exploded Views
DECK Mechanism Exploded View (DVD)
Exploded diagram of the DVD deck mechanism components.
SECTION 6: REPLACEMENT PARTS LIST
Replacement Parts List
Comprehensive list of replacement parts with part numbers and specifications.
Section 6 Replacement Parts List
Individual Parts
List of individual replacement parts for the unit.
Packing Accessory Parts
List of accessories included in the product packaging.
Remote Controller Parts
Replacement parts for the remote control.
Front Panel Assembly Parts
Replacement parts for the front panel assembly.
Deck Assembly Parts (Video/DVD)
List of replacement parts for the video and DVD deck mechanism.
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