Specifications

XR-4803

SERVICE MANUAL

Model Name Using Similar Mechanism	NEW

Tape Transport Mechanism Type	MG-25F-136

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MICROFILM

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Contents

XR-4803 Specifications Diagrams Table of ContentsFlexible Circuit Board Repairing Section General Page Page Page Page Page Front Panel ASS’Y Section DisassemblyCover ASS’Y Main BOARD, Heat Sink SUB PANEL, Mechanism Deck MG-25F-136 Housing Section Assembly of Mechanism Deck Gear LDG-FT Lever LDG-A / LDG-B Guide C Section Electrical Adjustments Section Mechanical AdjustmentsTape Deck dB=0.775 Tuner dB=1 µV FM Auto Scan/Stop Level Adjustment AM MW Auto Scan/Stop Level Adjustment Source and Mode button MW IC PIN Function Description Section DiagramsPin No Pin Name Function REL Uniso Page Page Page IC331 LC75373ED IC Block Diagrams Main Board IC301 CXA2509AQ-T4IC351 IC611 BA3918-V2 Chassis Section Section Exploded Views1211 102 Front Panel Section108 107 105 111 121 114 112 104 103 113 101 117 116 106 115 118 159 158 155 154 157 156 153 152 168 151 160 163 161 Mechanism Deck Section MG-25F-136162 164 165 168 166 167 KEY Section Electrical Parts List KEY Main Double Layer Inductor Tuner TU1 Screw +B 502 501 503504 505 XR-4803