Cal.5D22A TECHNICAL GUIDE

Transcription

1 No. PROCESS ILLUSTRATIONS AND SPECIAL INSTRUCTIONS ETC. Mount the secondary battery unit. Mount the insulator for secondary battery. Mount the secondary battery guard. Fix the insulator for secondary battery and secondary battery guard by tightening the secondary battery guard screws b and f. Reset the built in IC. Refer to the Fig. 44. <15> Mount the secondary battery unit. Hook the arm of the secondary battery unit to the a portion in the Fig. 43 below. Take care so as not to deform the minus terminal when removing the secondary battery unit. a Fig. 43 <14>Mount the insulator for secondary battery. Firmly press down the hole of the insulator for secondary battery to the guide tube of the main plate ( e ), then press down the point of engagement d until insulator for secondary battery is securely set in position. <13>Mount the secondary battery guard. Firmly press down the points of engagement to securely set it in position. Positioning guide tube: e Points of engagement: c and d f e c b d <12> Fix the insulator for secondary battery and secondary battery guard by tightening the secondary battery guard screws b and f. Fig. 42 Reset the built in IC. Short-circuit the built-in IC by connecting the reset pattern on the circuit block and the circuit block cover A using a pair of tweezers for approximately 2 seconds. Fig. 44 Short-circuit Reset pattern NO /47

2 No. PROCESS ILLUSTRATIONS AND SPECIAL INSTRUCTIONS ETC. NO. 15 Lubricate and set the oscillating weight wheel. Refer to the Fig. 46. Mount the oscillating weight Fix the oscillating weight by tightening the oscillating weight screw <11>Lubricate and set the oscillating weight wheel as shown in the Fig. 46. Spring portion Type of oil:ao-3 Apply the lubricant to the clearance around the tip of the spring so that the lubricant is applied to the entire surface. Axisoscillating portion of the wheel Type of oil:ao-3 Apply the lubricant to the clearance around the indentation so that the lubricant is applied entirely to the inside surface of the axis. <10> Mount the oscillating weight <9> Fix the oscillating weight by tightening the oscillating weight screw Check the power generating performance. Check the movement of the oscillating weight. Check the movement of the crown. Fig. 46 Check the power generating performance Check if the power is generated while the oscillating weight is rotating Range of the initial voltage: between 1.30V and 1.55V The increase in voltage after spinning the oscillating weight should not be less than 50 mv. Check if the power is generated while the winding stem is rotating The increase in voltage after rotating the winding stem weight Fig. 45 Check the movement of the oscillating weight. Ensure that the oscillating weight rotates smoothly without any friction or resistance. Check the movement of the crown by winding it clockwise at its normal position. Make sure that the crown does not run idle and that it rotates smoothly without any resistance. The crown should rotate without making creaking noises. * If the generating rotor is not appropriately lubricated, you will hear the creaking (high-pitch sound). should not be less than 50 mv. 36/47

3 No. PROCESS ILLUSTRATIONS AND SPECIAL INSTRUCTIONS ETC IV)Assembling the dial side of the movement (2) Set the movement upside down on the universal movement holder. Mount the hour wheel. Mount the dial washer. Refer to the Fig. 50. Mount the date driving wheel. Refer to the Fig. 47. Lubricate the oscillating hole for the date corrector wheel. Refer to the Fig. 48. Mount the date corrector wheel after lubricating the oscillating hole. Mount the date dial. <6> Mount the date driving wheel. Position the date driving wheel as shown in the Fig. 47 to avoid any friction after assembling the date dial and day star wheel. <4>Mount the date dial. <5> Mount the date corrector wheel. <8> Mount the hour wheel. Fig. 47 Lubricate the oscillating hole for the date corrector wheel. Type of oil:ao-3 Apply the lubricant to the inside surface of the hole as shown in the illustration. Fig. 48 <7>Mount the dial washer Fig. 49 Make sure the dial washer is put in the correct direction. (See the Fig. 50 below.) Fig. 50 When mounting the dial washer, handle it with care so as not to bend or deform it. NO /47

4 NO. 17 No. PROCESS ILLUSTRATIONS AND SPECIAL INSTRUCTIONS ETC. 3 2 Set and hook the date jumper to the date dial. Refer to the Fig. 53. Mount the date dial guard. <3>Set and hook the date jumper to the date dial. Take care so as not to deform it. <2> Set the date dial. guard. Fig. 53 Fig. 52 Fig /47

5 NO. 18 No. PROCESS ILLUSTRATIONS AND SPECIAL INSTRUCTIONS ETC. 2 Lubricate the oscillating portion of the date dial and date jumper. Fix the date dial guard by tightening the date dial guard screw. Check the clearance among the wheels underneath the date dial guard. Lubricate the oscillating portion of the date dial and date jumper. Oscillating portion of the date dial Points of engagement of the date jumper with the date dial Type of oil:ao-3 Fig /47

6 NO. 19 PROCESS V) Function checks and installation of the exterior parts SPECIFICATIONS (QUALITY SPECIFICATIONS, HANDLING METHODS ETC.) Check the movement of the winding stem and connected wheels. Check the movement of the hands by winding the stem with crown at the second click position. Check if the date is corrected when the crown is at the first click position. Check if the date changes correctly when the crown is at the second click position. Ensure that the winding stem works smoothly without being dragged at any position. Pull out the winding stem to the first and second click position and vice versa. Turn the crown clockwise and counterclockwise at each position. The hands should move smoothly without dropping off or being dragged while rotating or without any friction. Ensure that the calendar is corrected smoothly without any friction or resistance. Check full rotation of the date dial. Ensure that the date correctly changes without any friction or resistance. The date should change instantly without being dragged. When the date changes, make sure that it does not advance for two days at one time. 40/47

7 NO. 20 No. PROCESS SPECIFICATIONS (QUALITY SPECIFICATIONS, HANDLING METHODS ETC.) ILLUSTRATIONS AND SPECIAL INSTRUCTIONS ETC. Check the alignment of the power reserve wheels through the holes shown in the Fig. 56. Mount the end-piece for dial. Mount the dial. Holes for dial fixing pins at a and b. Refer to the Fig. 55 at right. Check the clearance of the a hour wheel. Preparation for mounting the (Refer to the instruction at right.) direct drive indicator hand Fig 56 Fig. 55 Preparation for mounting the direct drive indicator hand When the built-in IC is reset, the direct drive indicator hand temporarily returns to the 0 position and remains there for a period of maximum 9 minutes. Carry out the following procedures within this time limit of 9 minutes. <H ow t o inst all t he direct d riv e in dic at o r h an d afte r res ett ing the b uilt - in IC > 1. With the winding stem at the second position, press the button located at the 10 o clock position for 2 seconds or more. 2. After releasing the button, wait for 2 seconds or more, and then push the winding stem back to the original position. Doing this will trigger the system reset operation. The direct drive indicator hand returns to the 0 position (standby position). 3. Pull out the winding stem to the second position again and start mounting the hands. Note) If the winding stem is at the original position or at the first click position, the direct drive indicator hand remains staying at the standby position for only 3 minutes after the built-in IC is reset. b 41/47

8 NO. 21 No. PROCESS SPECIFICATIONS (QUALITY SPECIFICATIONS, HANDLING METHODS ETC.) ILLUSTRATIONS AND SPECIAL INSTRUCTIONS ETC. Mount the direct drive indicator hand. Mount the hour hand. The direct drive indicator hand should indicate the 0 position as illustrated at right. Push-in force: push it in with a force less than 2 kg. Mount the minute hand. Mount the second hand. Check the hand installation height. Make sure that the hands turn a full circle without having any friction with other hands or markings on the dial or the surface of the dial. Direct drive indicator hand Check the movement of the hands. Check if the date changes correctly. Remove the winding stem. Set the movement into the case. Set the winding stem with the crown. Close the case back. Ensure that the case is firmly mounted without any clearance. 42/47

9 Cal. 5D22A TECHNICAL GUIDE 2. VALUE CHECKING AND ADJUSTMENT l Coil block resistance Measure the resistance of each coil block and make sure that each measured value falls in the range as below. Coil block: 1.9kΩ 2.15kΩ Generating coil block: 585Ω 645Ω Power reserve coil block: 1.25kΩ 1.50kΩ l Current consumption For the whole movement: Less than 0.65μA (with the supplied voltage range between 1.25V and 1.45V from the secondary battery) * The above information is provided only as reference. Please note that the current consumption value may slightly vary each time you measure it, depending on the model of the watch (hand specification, or moment of inertia). * When using a SEIKO multi-tester S-860, select the following range. For the whole movement: NORMAL 40 μa l How to measure the current consumption 1. Re move t h e o s c illa t in g we igh t, insulator for the secondary battery and secondary battery cover. 2. R e m ove t h e s e c o n d a r y b a t t e r y and rotate it approximately 18 0 degrees, then place it in a temporary position for current consumption measurement as illustrated. 3. Measure the voltage of the secondary battery and make sure the result falls in the range between 1.25V and 1.45V. If the result is out of the range, please replace the secondary battery and check the voltage again (After checking the current consumption, you can reassemble the original secondary battery as it does not mean the battery itself has a failure). 4. Pull out the crown to the second click position. 5. Apply each probe of the tester to the (-) and (+) terminal of the movement as illustrated. Avoid touching metal part other than the terminals by the probes so as not to short-circuit the secondary battery. 6. Hold the probes for 2 seconds or more, then push back the crown into the normal position. 7. Wait for approximately 20 to 30 seconds until the current consumption becomes stable. When the current consumption shows stable measurements, read the measurement. * If the current consumption keeps going down or exceeds the standard value, repeat the procedure from the step 4 above. 43/47

10 TECHNICAL GUIDE Cal. 5D22A l Checking the automatic generating system 1. Apply the probes of the tester as shown in the illustration, and measure the voltage of the secondary battery. (The obtained voltage is called the initial voltage.) Notes: When applying the minus probe of the tester to the secondary battery, take care so as not to short-circuit the lead terminal (-) and the secondary battery clamp. If a short-circuit has occurred, leave the watch untouched for more than 10 minutes, and measure the voltage again, checking that a stable measurement is obtained. 2. Close the case back tentatively, and swing the watch from side to side 200 times at a rate of 2 to 3 swings a second, making an arc of approximately 20 cm. 3. Within 3 minutes after swinging the watch, measure the voltage of the KINETIC E.S.U. in the same manner as in step 1 above. 4. Refer to the table below, and decide whether the automatic generating system is normal or defective. [Initial voltage of the KINETIC E.S.U. and guidelines of normal/defective decision] Initial voltage Guideline of normal/defective decision 1.05V V After charging, the voltage of the KINETIC E.S.U. increase more than 0.05 from the initial voltage. * The guidelines specified in the above table is applicable only when the voltage of the KINETIC E.S.U. is within the range between 1.05 V and 1.55 V. * The amount of electricity generated by swinging the watch varies depending on the manner in which you swing it, such as the rate of swinging and the size of the swinging arc. Please note, therefore, that checking through the procedure above is provided only as a guideline of normal/defective decision. 44/47

11 TECHNICAL GUIDE Cal. 5D22A <Notes on generating power and power reserve amount> l Number of swings and power reserve When the power reserve in the KINETIC E.S.U. is depleted and the watch stops completely, swing the watch for a few seconds at a rate of 2 to 3 times a second, and then check if the direct drive indicator hand moves to the 0 position from the standby position. After the direct drive indicator hand returns to the 0 position, charge the watch either by manual winding or by swinging the watch, observing the movement of the direct drive indicator hand. If the direct drive indicator hand remains moving at 2-second intervals, swing the watch approximately 500 times at a rate of 2 to 3 times a second. By doing so, the direct drive indicator hand will start moving at 1-second intervals. If the direct drive indicator hand still remains moving at 2-second intervals after this, continue swinging the watch further until the second hand starts moving at 1-second intervals. * After the direct drive indicator hand resumes its 1-second-interval movement, if no further power is generated subsequently, the watch will stop operating within three minutes. While the direct drive indicator hand is moving at 2-second intervals, and no further power is generated, the watch will stop operating within one minute. l Number of crown turnings and power reserve Turning the crown 60 times within approximately one minute will generate the power reserve of approximately 6 hours. * The amount of power generated by manual winding varies depending on the manner in which you turn the crown, such as the speed or the length of strokes of turning the crown. 45/47

12 TECHNICAL GUIDE Cal. 5D22A 3. TROUBLESHOOTING Symptom Possible causes Solutions The watch stops operating. The oscillating weight rotates at an abnormally high rate, and no charging is made. The oscillating weight does not rotate. 1) The battery voltage has been depleted. 2) The coil is broken. 3) One or more wheels have been contaminated with dirt, dust or other particles. An excessive or insufficient amount of lubricant has been applied to the wheels. 1) The coil of the generating coil block is broken. 2) The pivot of the generating rotor is broken. (The pinion of the generating rotor and the gear of the i n t e r m e d i a t e w h e e l f o r generating rotor are out of mesh.) 1) The gear of the oscillating weight and the pinion of the intermediate wheel are out of mesh. 2) The pivot of the generating rotor is broken. (The pinion of the generating rotor and the gear of the i n t e r m e d i a t e w h e e l f o r generating rotor are out of mesh.) 1) Charge the watch. 2) Replace the coil with a new one. 3) Remove dirt or dust and clean the contaminated wheels. Lubricate the relevant wheels with appropriate amount of lubricant. 1) Check the resistance of the generating coil block. If the coil is broken, replace the generating coil block with a new one. 2) Remove the broken pie c e of the generating rotor, and replace the generating coil block with a new one and lubricate it appropriately. ( O v e r h a u l a n d c l e a n t h e relevant parts if necessary.) 1) If the gear of the oscillating weight and the pinion of the intermediate wheel are intact, reassemble them correctly. 2) Remove the broken pie c e of the generating rotor, and replace the generating coil block with a new one and lubricate it appropriately. ( O v e r h a u l a n d c l e a n t h e relevant parts if necessary.) The current consumption for the movement exceeds the standard value. The date dial does not rotate. 1) When the measurement is made, the IC is still in the quick star t mode. (When the c urrent c onsump tion measures about 200μA, it is likely that the IC is in the quick start mode.) 2) The load applied on the gear train has increased, and the driving pulse to compensate it has been generated. 1) The date dial has too much c l e a r a n c e s o i t b e c a m e disengaged from the date driving wheel. 2) The calendar corrector wheel a n d / o r d a t e j u m p e r a r e disengaged. 1) After connecting the tester, t u r n t h e c r o w n s e v e r a l times, and then, make the measurement again. 2 ) O v e r h a u l a n d c l e a n t h e movement par ts, and then make the measurement again. Check the clearance of the date dial. Correct the defected parts. 46/47

13 TECHNICAL GUIDE Cal. 5D22A Symptom Possible causes Solutions 1) The battery voltage has been 1) Charge the watch. The direct drive indicator depleted. hand does not move. 2) Replace the power reserve coil 2) The coil is broken. with a new one. 3) One or more wheels have 3) Remove dirt or dust and clean been contaminated with dirt, the contaminated wheels. dust or other particles. Lubricate the relevant wheels An excessive or insufficient amount of lubricant has been with appropriate amount of lubricant. applied to the wheels. The direct drive indicator hand is not correctly aligned. The crown falls off. Small amount of water/blur inside of the glass persists. 1) The direct drive indicator hand has been incorrectly mounted to the wrong position. 2 )The position of the power reserve related wheels are incorrect. The winding stem has become loose. (The setting lever and the yoke are disengaged. ) Water resistance is deteriorated. The watch has been subjected to water pressure that exceeds the guaranteed degree. 1) Che c k the position of the p o w e r r e s e r v e h a n d a n d remount it correctly. 2) Che c k the position of the power reserve related wheels. 3) Overhaul and clean the power reserve related wheels. Check if the main plate, winding stem, setting lever and yoke are correctly mounted. Replace any defected part with a new one. Investigate the causes to take n e c e s s ar y m e a s ur e s, w hile cleaning inside of the watch. * For the troubleshooting of such defects as conventional quartz watches have in common, refer to the "TECHNICAL GUIDE, GENERAL INSTRUCTIONS". 47/ by