SPECIFICATIONS ... COVER TABLE OF CONTENTS ... A-1 SERVICING NOTICES ON CHECKING ... A-2 IMPORTANT NOTICE ... A-2 DISASSEMBLY INSTRUCTIONS REMOVAL OF MECHANICAL PARTS AND P.C. BOARDS ... B1-1 REMOVAL OF DECK PARTS ... B2-1~B2-5 KEY TO ABBREVIATIONS ... C1-1, C1-2 SERVICE MODE LIST ... C2-1 PREVENTIVE CHECKS AND SERVICE INTERVALS ... C3-1, C3-2 NOTE FOR THE REPLACING OF MEMORY IC ... C4-1 SERVICING FIXTURES AND TOOLS ... C5-1 PREPARATION FOR SERVICING ... C5-1 VCR TEST TAPE INTERCHANGEABILITY TABLE ... C6-1 MECHANICAL ADJUSTMENTS CONFIRMATION AND ADJUSTMENT ... D1-1, D1-2 CONFIRMATION AND ADJUSTMENT OF TAPE RUNNING MECHANISM ... D1-2, D1-3 MECHANISM ADJUSTMENT PARTS LOCATION GUIDE ... D1-4 ELECTRICAL ADJUSTMENTS BASIC ADJUSTMENTS ... D2-1 ELECTRICAL ADJUSTMENT PARTS LOCATION GUIDE ... D2-2 TROUBLESHOOTING GUIDES ... E-1~E-28 IC DESCRIPTIONS ... F-1, F-2 SERVO TIMING CHART ... G-1 SYSTEM SWITCH MODE ... G-2 SEMICONDUCTOR BASE CONNECTIONS ... H-1 BLOCK DIAGRAMS Y/C/AUDIO/HEAD AMP ... I-1 SYSTEM CONTROL/SERVO/TIMER ... I-2 Tuner HIFI/21PIN/OSD/VPS/NICAM ... I-3 OPERATION/POWER ... I-4 DECK SCHEMATIC DIAGRAM ... J-1 OPERATION SCHEMATIC DIAGRAM ... J-2 PRINTED CIRCUIT BOARDS (OPERATION 1/2/DECK) ... J-3 PRINTED CIRCUIT BOARDS (SYSCON) ... J-4~J-6 Y/C/AUDIO/HEAD AMP SCHEMATIC DIAGRAM ... J-7 SYSTEM CONTROL/SERVO/TIMER SCHEMATIC DIAGRAM ... J-8 21PIN/OSD/VPS SCHEMATIC DIAGRAM ... J-9 Tuner HIFI SCHEMATIC DIAGRAM ... J-10 POWER SCHEMATIC DIAGRAM ... J-11 DISPLAY SCHEMATIC DIAGRAM ... J-12 NICAM SCHEMATIC DIAGRAM ... J-13 INTERCONNECTION DIAGRAM ... J-14 WAVEFORMS ... K-1 MECHANICAL EXPLODED VIEW ... L1-1 MECHANICAL REPLACEMENT PARTS LIST ... L2-1 ACCESSORY REPLACEMENT PARTS LIST ... L2-1 CHASSIS EXPLODED VIEW (TOP VIEW) ... M1-1 CHASSIS EXPLODED VIEW (BOTTOM VIEW) ... M1-2 CHASSIS REPLACEMENT PARTS LIST M2 Antenna Systems Inc. 1 ELECTRICAL REPLACEMENT PARTS LIST ... N-1~N-3