Toshiba 14N21NS service manual

SERVICE MANUAL

PRINTED IN UK. 2002 C

COLOUR TELEVISION

14N21NS

TOSHIBA

Contents

Main SERVICING NOTICES ON CHECKING 6. AVOID AN X-RAY1. KEEP THE NOTICES IMPORTANT 3. USE THE DESIGNATED PARTS 5. TAKE CARE TO DEAL WITH THE CATHODE-RAY TUBE CONTENTS A2-1 A3-1 A3-2 A3-3 A3-4 A3-5 1. REMOVAL OF ANODE CAP 2. REMOVAL AND INSTALLATION OF FLAT PACKAGE IC Page SERVICE MODE LIST CONFIRMATION OF HOURS USED WHEN REPLACING EEPROM (MEMORY) IC 2. BASIC ADJUSTMENTS 1. ADJUSTMENT PROCEDURE Page Page 3. PURITY AND CONVERGENCE ADJUSTMENTS D-5 ELECTRICAL ADJUSTMENTS CRT PCB CP501 4. ELECTRICAL ADJUSTMENT PARTS LOCATION GUIDE (WIRING CONNECTION) MAIN PCB BLOCK DIAGRAM E-1 E-2 R429 C443 R805_1 PRINTED CIRCUIT BOARDS F-1 F-2 MAIN/CRT (INSERTED PARTS) SOLDER SIDE PRINTED CIRCUIT BOARDS F-3 F-4 MAIN/CRT (CHIP MOUNTED PARTS) SOLDER SIDE MICON/TUNER SCHEMATIC DIAGRAM G-1 G-2 CHROMA/SIF/VIF/21PIN SCHEMATIC DIAGRAM G-4 G-3 CAUTION: DIGITAL TRANSISTOR POWER SCHEMATIC DIAGRAM G-6 G-5 CD801 SM1573-001 10 DEFLECTION/CRT SCHEMATIC DIAGRAM 98.4100.6 2.7 2.7 2.7 G-8 95.4 1 SOUND AMP SCHEMATIC DIAGRAM +- G-10 G-9 WAVEFORMS MICON/TUNER CHROMA/SIF/VIF/21PIN WAVEFORMS SOUND AMP DEFLECTION/CRT MECHANICAL EXPLODED VIEW MECHANICAL REPLACEMENT PARTS LIST REF. NO. PART NO. DESCRIPTION J1-1 RESISTORS RESISTORS J2-1 RESISTORS CAPACITORS J2-2 CAPACITORS CAPACITORS TRANSISTORS J2-3 DIODES ICS TRANSISTORS REF. NO. PART NO. DESCRIPTION MISCELLANEOUS J2-4