CASIO QW1578 (SM542)
Manual de Servicio

6. PRECAUTIONS FOR REPAIR: MODULE QW-1569/1578 6-1. AC (ALL CLEAR)
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 positive (+) side of the battery or main plate with the metallic tweezers. The contact should be made for about two seconds. 2. On removing of the module from the case, please insert the precision screw driver between the module and the case pointed by an arrow. QW-1569

AC

Metallic tweezers QW-1578

AC

Metallic tweezers
� 11 �