Toshiba 15LV505 (LCD SECTION)

TROUBLESHOOTING GUIDE

(LCD SECTION)

POWER DOES NOT TURN ON

Is F501 broken?

Is there voltage at pin

6 of IC501 21V?

Is R510 broken?

Change F501.

Check IC501 and peripheral

circuit.

Change POWER PCB.

Yes

Change R510.

Yes

E-1

Contents

Main 15LV505 (*1) GREEN PRODUCT PROCUREMENT (*2) LEAD-FREE SOLDER WARNING DO NOT USE LEAD BASED SOLDER TO REPAIR THIS PRODUCT ! TABLE OF CONTENTS 15LV505 OWNERS MANUAL 15-inch* Diagonal LCD TV/DVD COMBINATION DearCustomer, NOTETO CATVI NSTALLERS SAFETY INSTRUCTIONS Installation, Care, and Service SAFETY INSTRUCTIONS Important Safety Instructions Additional Safety Precautions Notes on discs (Continued) Top Contents Introduction Connections Identification of controls (Continued) Separate VHF/UHF antennas (75 ohm VHF cable and 300 ohm UHF twin-lead wires) Combination VHF/UHF antenna (Separate VHF and UHF 300 ohm twin-lead wires) Inserting batteries Operation Connecting to optional equipment Connecting to a camcorder Connecting an optional equipment with ColorStream Using the audio/video inputs Connecting to an optional equipment with S-video output 2 Air/Cable selection 7 6 5 2 1 4 3 2 1 / / / / / / 5 2 1 Setting the language 5 4 2 Auto Setup 4 3 / / / 1 2 Adding Channel 6 5 4 1 MUTE / To change a password 7 1 / / / 4 3 2 1 3 2 1 5 4 3 2 1 6 4 3 1 4 3 2 1 6 5 4 3 1 6 5 4 3 1 2 5 4 3 1 Viewing the wide-screen picture formats 4 3 Selecting the audio language 1 3 2 1 3 2 1 4 1 DNR 2 3 Natural picture size 1 screen will appear. Press or to select 3 2 1 4 3 1 3 2 1 3 2 1 4 2 3 / / / Playing a disc (Continued) Zooming Zooming/Locating desired scene ZOOM JUMP Program playback/Random playback / / / Changing angles Title selection Changing angles/Title selection/ DVD menu 2 2 Audio CD/MP3/WMA/JPEG CD information MP3/WMA and Audio CD playback MP3/WMA/JPEG and Audio CD operation (Continued) JPEG playback Repeat, random and program playback using file browser (Continued) Function setup Section Option Details Page Customizing the function settings / / / RETURN Customizing the function settings (Continued) Temporary cancel the rating level by DVD disc Function setup Temporarycancel the rating level by DVD disc EJECT Reception disturbances Language code list Specifications Limited United States Warranty LCD TV/DVD Combination - Depot Repair Warranty CAUTION SERVICING NOTICES ON CHECKING 1. KEEP THE NOTICES HOW TO ORDER PARTS 3. USE THE DESIGNATED PARTS 2. AVOID AN ELECTRIC SHOCK IMPORTANT SAFEGUARDS Page IMPORT ANT SAFEGUARDS WHEN REPLACING DVD DECK DISC REMOVAL METHOD AT NO POWER SUPPLY PARENTAL CONTROL - RATING LEVEL 4 DIGIT PASSWORD CANCELLATION REMOTE CONTROL KEY CODE A2-1 A2-2 A2-3 A2-4 A2-5 A2-6 A2-7 A2-8 DISASSEMBLY INSTRUCTIONS 1. REMOVAL OF MECHANICAL PARTS AND P.C. BOARDS DISASSEMBLY INSTRUCTIONS 2. REMOVAL OF DVD DECK PARTS Page 3. REMOVAL AND INSTALLATION OF FLAT PACKAGE IC Page SERVICE MODE LIST RE-WRITE FOR DVD FIRMWARE SERVICING FIXTURES AND TOOLS CONFIRMATION OF CHECK SUM, POWER ON TOTAL HOURS AND MICON VERSION WHEN REPLACING EEPROM (MEMORY) IC CONFIRMATION OF INITIAL DATA 1. ADJUSTMENT PROCEDURE 2. BASIC ADJUSTMENTS Page Page ELECTRICAL ADJUSTMENTS D-4 D-5 ELECTRICAL ADJUSTMENTS REMOCON PCB POWER PCB DIGITAL PCB 3. ELECTRICAL ADJUSTMENT PARTS LOCATION GUIDE (WIRING CONNECTION) (LCD SECTION) TROUBLESHOOTING GUIDE Page Page (DVD SECTION) Page Page Page TROUBLESHOOTING GUIDE DVD BLOCK DIAGRAM F-1 F-2 POWER BLOCK DIAGRAM D510 F-3 F-4 Q505 D518 POWER(DIGITAL PCB) BLOCK DIAGRAM SW F-5 F-6 SIGNAL BLOCK DIAGRAM F-7 F-8 DMG097A PRINTED CIRCUIT BOARDS DVD MT (TOP SIDE) G-1 G-2 DVD MT (BOTTOM SIDE) CEH420A PRINTED CIRCUIT BOARDS G-3 G-4 DIGITAL (TOP SIDE) DIGITAL (BOTTOM SIDE) R503 PRINTED CIRCUIT BOARDS SW AS MARKED. -REPLACE RISK OF FIRE PRINTED CIRCUIT BOARDS POWER/OPERATION/REMOCON (CHIP MOUNTED PARTS) SOLDER SIDE CEH421A G-7 IC4001 ZR36966ELCG-D-G MPEG/MICON/DSP/RF_AMP SCHEMATIC DIAGRAM H-4 H-3 MEMORY SCHEMATIC DIAGRAM DSM2(06SD) H-6 H-5 MOTOR DRIVE SCHEMATIC DIAGRAM H-8H-7 AUDIO/VIDEO SCHEMATIC DIAGRAM CAUTION: DIGITAL TRANSISTOR CAUTION: DIGITAL TRANSISTOR H-10H-9 MICON SCHEMATIC DIAGRAM H-12H-11 SCALER VIDEO/AUDIO SCHEMATIC DIAGRAM H-14H-13 TUNER SCHEMATIC DIAGRAM H-16H-15 HDMI SCHEMATIC DIAGRAM NOTE:THE DC VOLTAGE AT EACH PART WAS MEASURED :SINCE THESE PARTS MARKED BY H-18H-17 LVDS SCHEMATIC DIAGRAM H-20H-19 SCALER POWER SCHEMATIC DIAGRAM H-22H-21 FLASH SCHEMATIC DIAGRAM H-24H-23 DDR SCHEMATIC DIAGRAM CAUTION: DIGITAL TRANSISTOR H-26H-25 JACK SCHEMATIC DIAGRAM H-28H-27 AV SWITCH SCHEMATIC DIAGRAM CAUTION: DIGITAL TRANSISTOR CAUTION: DIGITAL TRANSISTOR H-30H-29 REGULATOR SCHEMATIC DIAGRAM NUTILISER QUE DES FUSIBLE DE MEME TYPE IS NON POLAR ONE. IS THE LIVE CONNECTIONCAUTION: CAUTION: DIGITAL TRANSISTORCAUTION: DIGITAL TRANSISTOR POWER SCHEMATIC DIAGRAM NUTILISER QUE DES FUSIBLE DE MEME TYPE CAUTION: DIGITAL TRANSISTOR 5A 32V(F7001) CAUTION:F7001 IS MANUFACTURED BY SKYGATE CO.,LTD., TYPE 20N. 5A 32V(F7001) CN2 CN1 NOTE:THE DC VOLTAGE AT EACH PART WAS MEASURED :SINCE THESE PARTS MARKED BY SOUND AMP SCHEMATIC DIAGRAM H-36H-35 JACK OUT SCHEMATIC DIAGRAM (REMOCON PCB) H-38H-37 (OPERATION PCB) H-40H-39 SW SCHEMATIC DIAGRAM CAUTION THE TIMETHIS INTERCONNECTION DIAGRAM IS THE LATEST ATNOTE: INTERCONNECTION DIAGRAM CN2 H-42H-41 CN1 Page WAVEFORMS MECHANICAL EXPLODED VIEW 103A 103 201 105 Page DVD DECK EXPLODED VIEW NOTE: MECHANICAL REPLACEMENT PARTS LIST K1-1 Location No. TSB P/N Reference No. DVD DECK REPLACEMENT PARTS LIST K2-1 Location No. TSB P/N Reference No. Description RESISTORS K3-1 CAPACITORS ICS K3-2 TRANSISTORS COILS &TRANSFORMERS K3-3 JACKS SWITCHES P.C.BOARD ASSEMBLIES MISCELLANEOUS K3-4