TECHNICAL INFORMATION INFORMACION TECNICA CITIZEN QUARTZ Cal. No. H50 ENGLISH Contents §1. OUTLINE ......................................................................................................1 §2. SPECIFICATIONS .......................................................................................1 §3. BEFORE USING...........................................................................................1 §4. DISPLAYS AND BUTTONS .........................................................................2 §5. FUNCTIONS UNIQUE TO SOLAR-POWERED WATCHES ........................2 §6. GENERAL REFERENCE FOR CHARGING TIMES ....................................3 §7. HANDLING PRECAUTIONS ........................................................................4 §8. REPLACING THE SECONDARY BATTERY................................................4 §9. SETTING THE TIME AND DATE..................................................................5 §10. USING THE CHRONOGRAPH.....................................................................6 §11. ZERO POSITIONING OF CHRONOGRAPH SECOND HAND....................6 §12. PRECAUTIONS FOR DISASSEMBLY AND ASSEMBLY............................7 §13. DISASSEMBLY AND ASSEMBLY OF MOVEMENT....................................8 §14. TROUBLESHOOTING AND ADJUSTMENT METHOD.............................12 §1. OUTLINE This watch is a solar-powered watch that contains a solar cell in its face that drives the watch by converting light energy into electrical energy. It is equipped with features including a 24 hour display and chronograph function that allows measurement of time in 1 second units up to 60 minutes. §2. SPECIFICATIONS Caliber No. H50 M-00 Type Analog solar-powered watch Movement size (mm) ř26.0 x 22.6 x t4.53 Accuracy (At normal temperature) Within ą15 seconds per month on average (when worn at normal temperatures of +5°C to +35°C / 41°F to 95°F) Crystal oscillator 32,768Hz Operating temperature –10°C to +60°C (14°F to 140°F) IC 1 unit of C/MOS-LSI Time adjustment No adjustment terminal for use in market Measurement gate 10 sec. Display functions Time 24 hours, Hours, Minutes, Seconds Calendar Date (with rapid correction feature) Chronograph (display and measurement of elapsed time up to 59 minutes, 59 seconds in 1 second unit) Additional functions Insufficient charge warning function Overcharging prevention function Quick start function Continuous Operating time Full charged to stop without charging Approx. 5 months (continuous running time differ depending on which frequency at which the cronograph is used and so forth) 2-second interval movement to stop Approx. 5 days Battery Secondary battery 1 pc. Specifications are subject to change without notice. §3. BEFORE USING This watch is a solar-powered watch. Please fully charge the watch before using by exposing it to light. A secondary battery is used in this watch to store electrical energy. This secondary battery is a clean energy battery that does not contain mercury or other toxic substances. Once fully charged, the watch will continue to run for about five months without additional charging. To use this watch comfortably, make sure to recharge it before it stops running completely. Since there is no risk of overcharging (Overcharging Prevention Function), it is recommended that the watch be recharged everyday. English 1 2 §4. DISPLAYS AND BUTTONS §5. FUNCTIONS UNIQUE TO SOLAR-POWERED WATCHES When the watch becomes insufficiently charged, the following warning features will be activated to inform the wearer that the watch is insufficiently charged. [Insufficient Charging Warning Function] When the capacity of the secondary battery decreases as a result of light not shining on the solar cell, the second hand switches from 1-second interval movement to 2-second interval movement (insufficient charging warning function). Although the watch continues to keep time accurately at this time, the watch stops after about 5 days have elapsed after the second hand has switched to 2-second interval movement. When this happens, charge the watch by exposing it to light until the second hand returns to 1-second interval movement. 8 Button (A) Second hand Chronograph minute hand Hour hand Chronograph second hand Button (B) Minute hand Crown 24 hour hand Date The design varies depending on the model. If charged If insufficiently charged If watch is continued to be used without charging [Normal Time Display] 8 8 8 [Insufficient Charging Warning function] The second hand switches from 1-second interval movement to 2-second interval movement [Stopped] All hands stop moving The watch hands resume 2-second interval movement when the watch is charged by exposing to light. However, the time is incorrect as a result of the watch having stopped due to being insufficiently charged. Sufficiently charge the watch until it resumes 1-second interval movement and reset the time before use. 2-second interval movement 8 Notes: • During chronograph measurement, measurement stops and the chronograph second hand is reset to the 0 seconds position. • The chronograph minute hand stops at any arbitrary position. Return it to the 0 minutes position by pressing button (B). [Quick Start Feature] If the watch has stopped as a result of being insufficiently charged, the second hand will begin 2-second interval movement and the watch will begin to run about 10 seconds after the watch is exposed to light (approx. 500 lx). (the time until the hands begin to move varies depending on the model. ) Please note, however, that the watch will stop again if the watch is blocked from the light and is not sufficiently charged. [When the Watch has Stopped due to Insufficient Charging] When the capacity of the secondary battery decreases as a result of the solar cell not being exposed to light, the watch will stop due to being insufficiently charged. The Quick Start Feature will be activated and the hands will begin to move if the solar cell is exposed to light. Sufficiently charge the watch by exposing to light so that it returns to the normal time display (1-second interval movement). Note: The time is incorrect when the watch has stopped as a result of being insufficiently charged even if the watch starts to run. Reset the watch to the correct time before using. [Overcharging Prevention function] The overcharging prevention function is activated when the secondary battery is fully charged so that it is not charged further. §6. GENERAL REFERENCE FOR CHARGING TIMES Recharging time varies according to the watch model (such as the color of the dial). The times in the table below should therefore only be used as a rough reference. * Charging time refers to the amount of time during which the watch is continuously exposed to light. Illuminance (lx) Environment Charging time One day usage Charging time from the stopped state to normal hand movement (1-second interval movement) Full charge time 500 Inside an ordinary office 3 hours 30 hours –– 1,000 Under a fluorescent lamp (30 W) at a distance of 60-70 cm (24-28 in) 2 hours 14 hours –– 3,000 Under a fluorescent lamp (30 W) at a distance of 20 cm (8 in) 30 minutes 5 hours 80 hours 10,000 Outdoors, cloudy 9 minutes 2 hours 25 hours 100,000 Outdoors, summer and sunny under direct sunlight 3 minutes 16 minutes 11 hours Full charge time: Time to fully recharge the watch after it has stopped. One day usage : Time required for recharging the watch to run for 1 day with normal hand movement (1-second interval movement). 3 §7. HANDLING PRECAUTIONS Please note that if you wear long sleeves, the watch can easily become insufficiently charged as a result of the watch being covered and not being exposed to light. The watch will continue to run properly if it is placed in as bright a location as possible even when not being worn. Charging Precautions • Allowing the watch to reach high temperatures during recharging can damage the watch. Avoid recharging in locations that can reach high temperatures (about 60°C/140°F or higher). Examples: • Charging by placing the watch in close proximity to a light source that easily becomes hot such as an incandescent lamp or halogen lamp. • Charging the watch in a location that can easily become hot such as on an automobile dashboard. • When charging using the light from an incandescent lamp, charge while being careful that the watch does not become excessively hot by placing at a distance of at least 50 cm (20 inch) from the lamp. Handling of Secondary Battery • Please do not attempt to remove the secondary battery from the watch. • If the secondary battery has been unavoidably removed, store it in a location out of the reach of small children to prevent accidental swallowing. • If the secondary battery should happen to be swallowed, please consult a physician and seek medical attention immediately. Only Use the Specified Secondary Battery • Never use a secondary battery other than the secondary battery used in this watch. Although the watch is designed not to operate if another type of secondary battery is installed, since this may result in overcharging that can cause the secondary battery to rupture, there is the risk of both damage to the watch and injury to the wearer. • Only use the specified secondary battery when replacing the secondary battery. §8. REPLACING THE SECONDARY BATTERY Unlike ordinary silver-based batteries, the secondary battery used in this watch does not have to be periodically replaced since it is able to be charged and discharged repeatedly. 4 §9. SETTING THE TIME AND DATE In the case the crown is of the screw-lock type, loosen the screw by turning the crown to the left before operating the crown, and after having returned the crown to the normal position following operation, turn it to the right while pushing it in to securely retighten it. Hour hand [Setting the Time] 1. Pull the crown out to the time correction position when the second hand has reached the 0 seconds position. 2. Turn the crown to set the time. • The 24-hour hand moves in conjunction with the hour hand. Pay attention to AM and PM when setting the time. 3. Securely return the crown to the normal positin in synchronization with a telephone or other time service. [Hint for accurately Setting the Time] After stopping the second hand at the 0 seconds position, turn the minute hand 4 or 5 minutes past the correct time and then turn it back to the correct time. The time on the watch can then be set to the correct time by pushing in the crown in synchronization with a time service tone. [Setting the Date] 1. Pull the crown out to the date correction position. 2. Turn the crown to the right to set the date. • The crown turns freely and the date does not change if the crown is turned to the left. • If the date is set while the time on the watch is between the hours of about 9:00 PM and 1:00 AM, the date may not change on the following day. If this happens, set the date after temporarily moving the hands to a time other than between the above times. • The date is based on a 31-day calendar. The date must be changed from the last day of the month to the first day of the following month for those months not having 31 days (months having 30 days and February). • The date changes at around 12:00 AM. 3. Once the date has finished being set, return the crown to the normal position. 8 24-hour handSecond hand Minute hand Time correction position Date correction position 8 Date 5 §10. USING THE CHRONOGRAPH The chronograph function of this watch is able to measure and display elapsed time up to 59 minutes, 59 seconds in 1 second units. After 60 minutes have elapsed, each of the chronograph hands automatically stop at the 12:00 position. Chronograph minute hand [Chronograph Timing] Chronograph 1. Start timing by pressing button (A). • The chronograph is repeatedly started and stopped by pressing button (A). 2. Pressing button (B) resets the chronograph to 0 seconds. (A) (A) Stop (A) Button (B) Reset TimeMeasurement (B) (B) 8 second hand Button (A) Note: Do not subject the chronograph to strong impacts while chronograph timing is in progress. Subjecting the watch to a strong impact during chronograph timing or when the chronograph has stopped automatically after 60 minutes have elapsed can cause the chronograph minute hand to shift out of position. If this happens, press button (B) to reset to the 12:00 position before using the chronograph again. §11. ZERO POSITIONING OF CHRONOGRAPH SECOND HAND When resetting the chronograph, if the chronograph second hand does not return to the 0 seconds position or if the chronograph second had has shifted out of position due to strong impact, perform zero positioning of the chronograph second hand according to the procedure described below. • In the case the crown is of the screw-lock type, loosen the screw before operating the crown. • The zero positioning procedure cannot be performed while the insufficient charging warning function is activated (while the second hand is moving at 2-second interval movement due to the watch being insufficiently charged). Sufficiently charge the watch and check that the second hand is moving at 1-second interval movement before performing the zero positioning procedure. [Chronograph Second Hand Zero Positioning] 1. Pull the crown out to the time correction position. 2. 1) Press button (A) for 3 seconds or more and release it, the watch enters the chronograph second 0 position correction mode. 2) Press button (A) to position the chronograph second hand at the 0 second position. • The chronograph second hand can be advanced one second at a time (in the clockwise direction ) each time button (A) is pressed. Time • The chronograph second hand can be correction position advanced rapidly by depressing button (A) continuously. 3. Once the chronograph second has been positioned at the 0 position, reset the time and return the crown to the normal position. 4. Press button (B) to check that the chronograph minute hand has been reset to the 0 position. Chronograph minute hand Chronograph second hand Button (A) Button (B) 8 6 §12. PRECAUTIONS FOR DISASSEMBLY AND ASSEMBLY [Precautions for removing setting stem] When removing the setting stem, if you press the (A) button to start the chronograph, the "setting lever" is hidden behind the "fly-back lever" and "stop lever" and you cannot press the setting lever. 1. Press the (B) button to move the "fly-back lever" and "stop lever" aside so that you can see the "setting lever". 2. With the crown at the normal position, pressing the "setting lever", pull out the setting stem. If the (A) button is pressed, the "setting lever" is hidden. A1 PUSH A1 PUSH (B) button (A) button Setting lever If the (B) button is pressed, the "setting lever" is seen. 7 : A-Lube oil : V-Lube oil : F-Lube oil : CH-1 oil Lubrication mark A F V Secondary battery Chronograph guard [ x 4] Intermediate second chronograph wheel 2 Minute-recording wheel Second chronograph rotor Plate complete supporter Stop lever Crown wheel bridge Third wheel and pinion Fourth wheel and pinion Cannon pinion with wheel Minus lead plate Setting stem spacer Minute wheel and pinion Hour wheel Intermediate 24-hour wheel Second chronograph coil unit (red) Second chronograph stator Metal plate Shield plate Strap for second chronograph guard Intermediate second chronograph wheel 1 Intermediate minute chronograph wheel Second-recording wheel Fly-back lever guard Fly-back lever 24 hour wheel Fifth wheel and pinion Setting wheel Rotor Intermediate minute wheel Clutch wheel Setting lever spring Setting lever Yoke Setting stem Second wheel Coil unit (orange) Stator Date dial correcting wheel Unit of electronic circuit [ x 2] Train wheel bridge [ x 2] PUSH ( -) A1 H500M NO JEWELS J A PAN CITIZEN WATCH CO. A1 H500M NO JEWELS JAPAN CITIZEN WATCH CO. V V V V V V V V V V V V V VVV V V A A A A A A A A F F F F F F F F F F §13. DISASSEMBLY AND ASSEMBLY OF MOVEMENT 8 9 Date dial guard Solar cell block Date dial Intermediate date wheel Date jumper Date dial driving wheel Solar cell setting spring Calendar corrector lever Lower plate F F A A A A A V V V V V F A A A A [Assembly drawing for train wheel] Minute wheel and pinion Intermediate 24-hour wheel Second wheel Hour wheel Rotor Fifth wheel and pinion Fourth wheel and pinion Third wheel and pinion Cannon pinion with wheel 10 24 hour wheel Second-recording wheel Intermediate minute chronograph wheel Intermediate second chronograph wheel 1 Intermediate second chronograph wheel 2 Second chronograph rotor Minute- recording wheel 11 §14. TROUBLESHOOTING AND ADJUSTMENT METHOD 1 9 End 1 Measurement of secondary battery voltage Measurement of secondary battery voltage Error of insufficient recharge warning function Measurement of time rate Confirmation of output signal Measurement of coil resistance Check of train wheel Check of dial side mechanism Measurement of secondary battery voltage Measurement of current consumption Measurement of time rate Check of appearance and functions Check of connection parts Confirmation of using condition Replacement of secondary battery Replacement of secondary battery Replacement of unit of electronic circuit Replacement of unit of electronic circuit Check of solar cell Check of solar cell Measurement of current consumption Measurement of current consumption Measurement of secondary battery voltage Means to charge by applying sufficient light. 2 3 4 5 6 Normal Abnormal Replacement of coil complete 7 8 15 Charging Below 1.3V Below 1.3V Below 1.3V 1.3V or higher 1.3V or higher 1.3V or higherCharging 1 7 8 Charging 1 8 9 16 Charging Charging Watch stops Time error Functional error Confirm oscillation with time rate measuring instrument. Oscillation is made. Below 1.3V signal is generated. Replacement of unit of electronic circuit Abnormal Abnormal Abnormal Abnormal Abnormal Normal Normal Normal Normal Normal Hands do not move. Signal is not generated. Hands start moving. Replacement of solar cell Replacement of solar cell Replacement of unit of electronic circuit Replacement of secondary battery 1.3V or higher Oscillation is not made. 10Malfunction of chronograph Check of chronograph output signal 11 Check of switch mechanism of buttons (A) and (B) 12 Check of train wheel of chronograph 13 Measurement of chronograph coil resistance 14Defective Calendar Check of calendar mechanism 12 Check Items How to Check Results and Treatment Measurement of secondary battery voltage 1 * Refer to Technical Manual Basic Course II-1-a. PUSHA1 Over 1.3 V . Non defective Under 1.3 V . Recharging. H500M NO JEWELS JAP AN CITIZEN WATCH CO. Confirmation of output signal 2 * Refer to Technical Manual Basic Course II-1-b. PUSHA1 Check the output signal A1. The tester pointer swings every second. . Non defective The tester pointer does not swings . Check the connection parts H500M NO JEWELS JAP AN CITIZEN WATCH CO. Check of connection part 3 * Refer to Technical Manual Basic Course II-2-a. 13 Check Points How to Check Results and Treatments Measurement of4 * Refer to Technical Manual Basic Course II-1-c. • Coil unit coil resistance Coil unit (orange) Second chronograph coil unit (red) 2.0 kO ~ 2.4 kO . Non defective • Outside range of above value. . Replace the coil unit Check of train5 * Refer to Technical Manual Basic Course II-2-b. wheels • Check that the fifth wheel and pinion are moving at intervals of 1 second while the crown is in the normal position. Second recording wheel PUSHA1 Fifth wheel and pinion H500M NO JEWELS JAPAN CITIZEN WATCH CO. • Press the (A) button to start the chronograph. (1) Check that the second-recording wheel is moving at intervals of 1 second. (2) Press the (A) button again and check that the second-recording wheel stops. (3) Press the (B) button and check that the second- recording wheel moves continuously. • Set the crown to the time setting position (second click position) and check that the fifth wheel and pinion stop. (1) Hold the (A) button for at least 3 seconds and release it, and then press it again. At this time, check that the second-recording wheel and each chronograph train wheel rotate while the (A) button is pressed. 14 Check Items How to Check Results and Treatment Check of dial6 * Refer to Tchnical Manual Basic Course II-2-c. side mechanism 1. Pull the crown to the second click and turn it clockwise to check that the hands are moved normally. 2. Pull the crown to the first click and turn it clockwise to check that the date dial is moved normally. Check of solar7 • Check the solar cell for breakage and stain, and check Breakage of solar cell cell its electrode for stain and flaking. . Replace solar cell. Stain . Remove stain. Flaking of electrode . Replace solar cell. Measurement of current consumption 8 * Refer to Technical Manual Basic Course II-1-f. • This watch uses the secondary battery, instead of a ordinary battery. Accordingly, prepare a silver battery (1.55V) and measure the current consumption according to the following procedure. (1) Remove the secondary battery. (2) Referring to Technical Manual, Basic Course, set the silver battery (1.55V) to the adapter of the tester correctly. (3) Pull the crown to the second click. (4) Set the tester. PUSHA1 H500M NO JEWELS JAPAN CITIZEN WATCH CO. • Current consumption of the movement Under 0.5 ľA . Normal Over 0.5 ľA . Check train wheel and dial-side mechanism. . Remove dust and dirt. h • Current consumption measured again Over 0.5 ľA . Replace the unit of electronic circuit. • Measurement of electronic circuit unit Under 0.06 ľA . Normal Over 0.06 ľA . Replace the electronic circuit unit. (5) Return the crown to the normal position and measure the current consumption of the movement. Notes: • The tester indicates a high value at first. Wait unitl the tester pointer is stablized, then measure the current consumption of the movement. • When measuring the current consumption, do not apply any light to the solar cell. If any light is applied, the voltage changes and correct current consumption cannot be measured. 15 Check Items Method Results and and Repair Procedure Measurement of time rate 9 * Refer to Basic Course II-2-d. • The time rate cannot be adjusted. • The time rate may not be measured accurately while the insufficient charge warning display is turned on. In this case, apply light to the watch until the hand moves normally, then measure the time rate. • The watch loses or gains substantial time . Replace the unit of electronic circuit. Check of chronograph output signal 10 * For the setting method of the tester, see Basic Section II-1-b. • Check the output signals (A2) to drive the step motor for the second, and minute hands of the chronograph. (Measuring method) Before measuring any of the above signals, start the chronograph by pressing the (A) button. * Confirm that the crown is at the normal position. Output signals of chronograph (Second and minute) • Tester pointer moves to right and left from 0V every 1 sec. . Normal • Tester pointer does not move. . Replace electronic circuit unit. PUSHA1 H501M NO JEWELS JAP AN CITIZEN WATCH CO. Check of switch11 1) Confirm that the buttons (A) and (B) operate smoothly 1) Buttons do not move mechanism of and check the switch springs of (A) and (B) for smoothly. button (A) and deformation. • Dust or dirt (B) 2) Check the part between the switch springs and pattern of the electronic circuit unit of dirt and dust. 3) Confirm that the, stop lever, and flay-back lever are installed normally. . Clean. • Supply oil to push button packings again. • Deformation . Replace parts. 2) Dust or dirt . Clean. Check of train wheel of chronograph 12 * Refer to Technical Manual, Basic Course: II-2-b. 16 Check Points How to Check Results and Treatments Measurement of13 * Refer to Technical Manual, Basic Course: II-1-c for the Second chronograph coil unit chronograph coil setting procedure of the tester. • 1.6 kO ~ 2.0 kO resistance Coil unit (orange) Second chronograph coil unit (red) . Normal • Out of 1.6 kO ~ 2.0 kO . Replace second chronograph coil unit Check of calendar mechanism 14 * Refer to Basic Course: II-2-c. Confirmation of15 * Refer to Basic Course: II-2-e. using condition • Since this watch is energized by light, it should receive light as much as possible. If the watch is placed near a light source which generates heat (above 60°C) such as an incandescent lamp, a halogen lamp, etc., its functions and parts may be deteriorated or deformed by the heat. Accordingly, take care when applying light to it. Example: When the watch is hidden under a long sleeve or the customer works in a dark place, it needs to be exposed to light on purpose. • It is important to check that the secondary battery is charged normally (the customer knows that this watch is a solar watch) and explain the correct charging method to the customer. Check of16 * Refer to Basic Course: II-2-f. appearance and • Check that there is not dust or dirt. function • Check that each push-button is free from abnormality. 17