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Toshiba SD-4900 SECTION, SUMMARY, OWNER’S, MANUAL(SD-4900), PRODUCT SAFETY SERVICING GUIDELINES FOR VIDEO PRODUCTS, SERVICING PRECAUTIONS

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SECTION 1 SUMMARY

OWNER’S MANUAL(SD-4900)...............................................................................................	1-2
PRODUCT SAFETY SERVICING GUIDELINES FOR VIDEO PRODUCTS ...........	1-36
SERVICING PRECAUTIONS ................................................................................................	1-37
• General Servicing Precautions

• Insulation Checking Prodedure

• Electrostatically Sensitive Devices

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Contents

Page SECTION SUMMARY OWNER’S MANUAL(SD-4900) PRODUCT SAFETY SERVICING GUIDELINES FOR VIDEO PRODUCTS OWNER’S MANUAL 3DSuroundSound Safety Precautions CAUTION IMPORTANT SAFETY INSTRUCTIONS Table of Contents Introduction Preparation Operation Reference Before Use Playable Discs Disc-relatedterms Types of video CDs Before Use (Continued) Precautions Handling the unit Cleaning the unit Notes on Discs Front Panel and Display Window Remote Control Remote Control Operation Range Remote control battery installation Rear Panel Connections Connecting to a TV Video connection (Good) Progressive Scan (ColorStream®Pro) connection S-Videoconnection (Better) Connections (Continued) Connecting to Optional Equipment Digital Multi-channelsound Before Operation General Explanation On-ScreenDisplay On-screendisplay operation Temporary Feedback Field Icons Before Operation (Continued) On-ScreenDisplay (Continued) PREPARATION Initial Settings Initial Settings General Operation Language Disc Language DVD-V DVD-A Menu Language Sound Digital Audio Output Sample Frequency 5.1 Speaker settings DVD-V DVD-A Page Parental Control Rating DVD-V Area Code DVD-V Changing the 4-digitcode If you forget your 4-digitcode Operation with DVD and Video CD Playing a DVD and Video CD Playback Setup If a menu screen is displayed General Features General Features (continued) Still Picture and Frame-by-frameplayback Slow Motion Random Repeat A-B Selecting the sound enhancement Zoom Marker Search Special DVD Features DVD-V DVD-A Checking the contents of DVD Video discs: Menus DVD Audio Discs DVD-A Moving to another GROUP Viewing another PAGE Playing an Audio CD and MP3/WMA Disc Operation with Audio CD and MP3/WMA Disc (Continued) Moving to another Track CD MP3 Repeat Track/All/Off CD MP3 WMA Changing the Audio Channel CD Operation with JPEG Disc Viewing a JPEG disc JPEG Moving to another File Still Picture To flip the picture Programmed Playback Programmed Playback with Audio CD and MP3/WMA Disc Programmed Playback with Video CD Repeat Programmed Tracks Erasing a Track from Program List Additional Information Screen Saver Dimmer Function Video Mode Setting Detailed Description of each Video Mode Speaker Settings Speaker selection Volume Size Distance Troubleshooting Language Code List REFERENCE Area Code List Specifications General System LIMITED WARRANTY DVD VIDEO PLAYER LIMITED WARRANTY DVD VIDEO PLAYER (Continued) OTHERS PRODUCT SAFETY SERVICING GUIDELINES FOR VIDEO PRODUCTS SERVICING PRECAUTIONS CABINET & MAIN CHASSIS 1. EXPLODED VIEWS EXPLODED VIEWS 1. Cabinet and Main Frame Section 2. Packing Accessory Section OPTIONAL PARTS ELECTRICAL ELECTRICAL TROUBLESHOOTING GUIDE DETAILS AND WAVEFORMS ON SYSTEM TEST AND DEBUGGING BLOCK DIAGRAMS CIRCUIT DIAGRAMS ELECTRICAL TROUBLESHOOTING GUIDE 1. Power check flow 2. System operation flow 3. Test & debug flow Page Page Page Page Page DETAILS AND WAVEFORMS ON SYSTEM TEST AND DEBUGGING 3) RS232 waveform during procedure(Downloading) 4) Flash R/W enable signal during download(Downloading) 2.SDRAM CLOCK 3.TRAY OPEN/CLOSE SIGNAL 1)Tray open/close waveform 2) Tray close waveform 3) Tray open waveform 4. SLED CONTROL RELATED SIGNAL (NO DISC CONDITION) 5. LENS CONTROL RELATED SIGNAL(NO DISC CONDITION) 6. LASER POWER CONTROL RELATED SIGNAL(NO DISC CONDITION) 7. DISC TYPE JUDGEMENT WAVEFORM Page 8. FOCUS ON WAVEFORM 9. SPINDLE CONTROL WAVEFORM (NO DISC CONDITION) 10. TRACKING CONTROL RELATED SIGNAL(System checking) 11. RF WAVEFORM 12. MT1379 AUDIO OPTICAL AND COAXIAL OUTPUT (ASPDIF) 13.MT1379 VIDEO OUTPUT WAVEFORM 1) Full colorbar signal(CVBS) 2) Y 3) C 14.AUDIO OUTPUT FROM AUDIO DAC 1) Audio L/R 2) Audio related Signal Overall BLOCK Diagram Block DIAGRAMS IC201 MT1379E 2. Power(SMPS) Block Diagram TRANS AC90~240V DV7800M'S RFOP,RFON IC201 IC501 Diagram Block SERVO PICK M/D 4. MPEG & MEMORY Block Diagram (MPEG + DSP) MT1379 DV7800M'S TOSHIBA A/V JACK 5.1CH BOARD Diagram Block AUDIO & VIDEO Page CIRCUIT DIAGRAMS 1. POWER(SMPS) CIRCUIT DIAGRAM VF(+) Power Dead F102 is defective VF(-)Power Dead 2. SYSTEM CIRCUIT DIAGRAM 3. RF & SERVO CIRCUIT DIAGRAM 4. TIMER, 5.1CH, SCART, KARAOKE CIRCUIT DIAGRAM '03. 3. 10 R14603B TOSHIBA 5. AV/JACK CIRCUIT DIAGRAM • CIRCUIT VOLTAGE CHART Page Page 2. KEY P.C.BOARD 3. TIMER P.C.BOARD Page SECTION 4 MECHANISM OF DVD PART Gear Assembly Middle DECK MECHANISM PARTS LOCATION • Top View (With Tray) • Top View (Without Tray) • Bottom View Note DECK MECHANISM DISASSEMBLY 1.Holder Clamp (Fig. 4-1) 1-1.Clamp Assembly Disc 2.Tray Disc (Fig. 4-2) 3.Base Assembly Sled (Fig. 4-3) 3-3.Gear Assembly Rack 4. Rubber Rear (Fig. 4-3) Gear Assembly Feed Gear Assembly Middle 5. Frame Assembly Up/Down (Fig. 4-4) 6. Belt Loading(Fig. 4-4) 7. Gear pulley (Fig. 4-4) 8.Gear Loading (Fig. 4-4) 9.Guide Up/Down (Fig. 4-4) Page 1. Deck Mechanism Exploded View Page SECTION 5 REPLACEMENT PARTS LIST

SECTION 1

SUMMARY

CONTENTS

PRODUCT SAFETY SERVICING GUIDELINES FOR VIDEO PRODUCTS ...........