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CONTENTS
Page
1. SPECIFICATIONS: MODULE QW-3721 .................................................... 1
2. OPERATION CHART: MODULE QW-3721 ............................................... 2
3. DRAWINGS: MODULE QW-3721
3-1. CIRCUIT DIAGRAM ...................................................................................... 8
3-2. CHECKING TERMINALS AND COMPONENTS .......................................... 9
4. EXPLODED VIEW: MODULE QW-3721 ................................................... 10
5. PARTS LIST: MODULE QW-3721 ............................................................ 11
6. PRECAUTIONS FOR REPAIR: MODULE QW-3721
6-1. AC (ALL CLEAR) AND REMOVING OF MODULE ..................................... 12
6-2. ACCURACY CHECKING ............................................................................. 12
6-3. SOLAR CELL-PCB ASS'Y CONTACT CHECKING .................................... 13
6-4. TIME CALIBRATION SIGNAL TEST MODE ............................................... 13
6-5. SECOND HAND MOVEMENT ACCURACY CHECK MODE ...................... 13
7. TROUBLESHOOTING: MODULE QW-3721 ............................................. 14