1. SPECIFICATIONS: MODULE QW-3721 Item Detail Battery CTL1025 (Storage battery) Note: Use CTL1025 only. Other storage battery or CR1025 can cause damage to the watch. Battery life Approx. 4 months 0.53 µA maximum: Current consumption Follow the procedure described below to measure the current consumption.
4. As for order/supply of spare parts, refer to the separate publication "GUIDE BOOK for spare parts supply". Item Code No. Parts Name Specification Applicable 76408221 MODULE/WITH MOVEMENT QW-3721YC-02TK OCW-100TDJ-1A OCW-110TDJ-1A 76408219 ANALOG BLOCK QW-3721MV-83TK QW-3721YC-02TK 10135068 BATTERY/STORAGE CTL1025 QW-3721YC-02TK 10172616 CONTACT/BATTERY (+) 3721 RJQ519936-001V02...
6. PRECAUTIONS FOR REPAIR: MODULE QW-3721 6-1. AC (ALL CLEAR) AND REMOVING OF MODULE 1. Perform AC (ALL CLEAR) when inserting a new battery, or else the memories and/ or counters may give erratic displays. Touch the AC contact and the main plate with the metallic tweezers. The contact should be made for about two seconds.
6-3. SOLAR CELL-PCB ASS'Y CONTACT CHECKING 1) Press B button at the accuracy checking mode, referring to page 10 to enter the solar cell-PCB ass’y contact mode. 2) Check a Solar cell and PCB ass’y contact by the second hand. 3) Press A button at the solar cell-PCB ass’y contact mode, to go back to the normal timekeeping mode.
7. TROUBLESHOOTING: MODULE QW-3721 This is a flow chart about signal reception. START Check whether the Home City code is selected correctly. To perform MANUAL time calibration signal reception Signal reception OK? To perform AUTO time calibration signal reception Signal reception OK? Replace the PCB ass'y Signal...
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Ver. 1 : Jun. 2010 Correction of page 10 CASIO COMPUTER CO.,LTD. Overseas Service Division 6-2, Hon-machi 1-Chome Shibuya-ku, Tokyo 151-8543, Japan...