Casio Watch (LQ139-A1) (630-5245) Replacing Batteries Faxback Doc. # 18412 [How to replace the battery] CAUTION: Battery replacement should not be attempted without use of the correct tools. 1. Check the type of back cover Screw-in Screwed Snap-on Snap-on Snap-on type type type (A) type (B) type (C) 2. Removing the back cover. Place the watch on soft material, like buckskin, and hold it firmly. With the Using a Insert Fit Case Insert Opener Adjustable screwdriver, Opener A Opener B B into a gap Case Opener, remove the in the into the between the turn the screws from recess and notch and two hooks, back cover the back move from pry open and pry open counterclockwise. cover. side to the back the back make a gap cover. cover. Avoid between the inserting the cover and case opener at the case. the hook Then use the position or Opener to pry the case may off the cover. be damaged. BATTERY LIFE: Battery life is calculated from when the battery is loaded at the factory. At first sign of power fade (dim display), have battery replaced at dealer or CASIO distributor. 3. Replacing the battery. Screw Type: Using a screwdriver remove screw(s) from the battery holder. Hook Type: Use a thin flat blade jeweler's screwdriver to pull hook on one side of the battery holder and remove the holder. Then replace dead battery(s) and attach the battery holder. CAUTION: Avoid touching the contact (-) of the battery. Never hold the contacts with metallic tweezers. Work carefully so that the components inside the watch do not pop up. 4. AC (AC CLEAR) As shown right, touch the AC contact and the battery (+) side with metallic tweezers. Contact should be about 2 seconds. IMPORTANT: (a) Contacting AC (ALL CLEAR) is necessary, when a new battery has been put in, because the memories/counters may cause erratic displays. (b) On some models, pushing the light button will turn on the display. 5. Fitting the back cover. Using the Tighten the screws, Place the watch Adjustable Case using a screwdriver. on a hand press Opener, tighten and push the the back cover. back cover in gently. Hold the watch horizontally and snap-fit the back cover. (PH 11/8/95)