Need help?Do you have a question about the Casio PRT-40C and is the answer not in the manual?
General| Model Number | PRT-40C |
|---|---|
| Category | Watch |
| Brand | Casio |
| Countdown Timer | Yes |
| Case Material | Resin |
| Band Material | Resin |
| Features | Altimeter, Barometer, Thermometer |
| Water Resistance | 100 meters |
| Display | Digital |
| Backlight | Electroluminescent |
| World Time | Yes |
Provides a detailed circuit diagram of quartz watches, illustrating basic components and their connections.
Explains power unit, oscillator, frequency divider, counter, and driver circuits for digital quartz watches.
Details oscillator, frequency divider, and coil driver circuits specific to analog watches.
Lists necessary tools, including battery checkers and multimeters, for measuring watch current consumption.
Step-by-step guide on how to measure current consumption using a multimeter and specific watch components.
Explains function and evaluation method for capacitors/chips in quartz watches.
Describes function and quality evaluation of transistors used in watch circuits.
Explains role of coils in watches and method for evaluating their resistance.
Details oscillator/quartz function and testing method using a dummy watch.
Explains how to adjust watch accuracy by adjusting the capacitor/trimmer using a quartz timer.
Discusses setting daily error and temperature compensation for watch accuracy.
Details adjusting accuracy by changing capacitance via pad combinations on the PCB.
Describes adjusting analog watch accuracy by cutting lead wires on the PCB.
Step-by-step guide for replacing a damaged or missing LCD module in a watch.
Explains how to evaluate EL quality and prepare a specialized EL checker.
Details materials and steps required to build a functional EL checker.
Illustrates and labels casing parts specific to the G-Shock watch model.
Provides exploded view and labels for casing parts of the Baby-G watch.
Diagram showing assembly of casing parts for the Twincept watch model.
Details casing parts and their arrangement for the Casio Data Bank watch.
Exploded view and part identification for casing components of a Diver's Watch.
Illustrates casing parts for watches with a side-mounted sensor/pressure unit.
Diagram of casing parts for watches featuring a front-mounted sensor/pressure unit.
Procedure for replacing the watch glass, including tools and water resistance precautions.
Step-by-step instructions for replacing damaged watch buttons using E-rings.
Guidance on replacing the rotating bezel (register ring) and its packing/O-ring.
Procedure for replacing the piezoelectric device responsible for alarm sounds in watches.
Steps for replacing the analog portion of a watch module, focusing on watches with plastic gears.
Important considerations and warnings for handling and replacing analog watch blocks.
Details the use of a water resistant tester to check watch water resistance levels.
Describes the function and operation of an air leak checker for waterproof testing.
Explains use of water pressure tester and hot plate for high-level water resistance checks.
Troubleshooting flowchart for sensor/pressure issues when using a trimming jig set.
Method for evaluating sensor/pressure quality by measuring terminal resistance.
Instructions for removing and attaching sensor/pressure components in watch modules.
Instructions for removing and attaching side-mounted sensor/pressure units.
Instructions for removing and attaching front-mounted sensor/pressure components.
Explains how relative altimeters use air pressure to measure altitude differences.
Presents data tables relating altitude, atmospheric pressure, and temperature.
Troubleshooting common causes for incorrect direction indication on magnetic sensor watches.
Method for evaluating sensor/magnetic quality by measuring terminal resistance.
Lists standard resistance values for sensor/magnetic terminals for quality assessment.
Provides handling instructions and quality evaluation steps for sensor/magnetic components.
Essential precautions for handling small parts and maintaining cleanliness during module repair.
Diagram identifying components of the module/with movement, focusing on the train wheel side.
Detailed explanation of the functions of various parts within the watch module.
Comprehensive guide covering disassembly, cleaning, lubrication, and reassembly of watch modules.
Procedure for replacing LCDs or PCB assemblies using thermal compression bonding (heat seal).
To Next Page