CASIO LX-553A
Service Manual

2. Press EXE to reset the memory and delete all data or any other key to abort the reset operation without deleting anything. Following the reset operation described above, the Home Time display appears and the unit settings are initialized as noted below. Home Time: 12-hour format JAN/1/1995 AM/12:00 00 Tokyo (TYO) London (LON) 12:00 AM Reminder alarm � OFF Daily alarm � OFF Key input tone � OFF Hourly time signal � OFF

Zone: World Time: Daily Alarm: Sound:

TO SAVE THE DATA
The unit can transfer the data stored to another unit. CAUTION: Before connecting wires, be sure to put the units in transmission and receiving mode. Furthermore, after completing saving data, remove wires while showing OK or NG on display. If no, data stored in customer's unit are corrupted. To save the data, the following steps must be followed; 1. Remove the battery cover of both units. 2. Press RESET button of both units. 3. Short the pad TR of customer's unit. (Display shows "T".) 4. Short the pad TR twice of slave unit. (Display shows "R".) 5. Connect 4 terminals on PCB with wires as shown in the figure below. Customers RESET button RESET button Slave

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CP12 TR CP10 CP10 CP11 CP13 CP2
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CP2

CP10 CP11 CP12 CP2

CP11 CP13