MEM21005
Diagnose faults in quartz watches


Application

This unit of competency defines the skills and knowledge required to test and diagnose faults in electronic quartz watches.

It applies to diagnosing faults where the power cell performance has already been tested and its condition is assessed as good or the correct terminal voltage under load, but the watch continues to indicate faults or is stopped.

No licensing, legislative or certification requirements apply to this unit at the time of publication.

Band: A

Unit weight: 2


Elements and Performance Criteria

Elements describe the essential outcomes.

Performance criteria describe the performance needed to demonstrate achievement of the element.

1

Determine job requirements

1.1

Follow standard operating procedures (SOPs)

1.2

Comply with work health and safety (WHS) requirements at all times

1.3

Select and use appropriate personal protective equipment (PPE) in accordance with SOPs

1.4

Identify job requirements from specifications, job sheets or work instructions

2

Establish servicing requirements and liaise with customer

2.1

Verify watch condition and performance concerns with customer

2.2

Prepare written and verbal quotations

2.3

Confirm customer agreement on recommended service procedures to remedy faults

2.4

Record and document repair process

3

Open and close watch cases

3.1

Determine need to open case for further testing

3.2

Select and use appropriate workshop tools and equipment

3.3

Open and close watch cases

3.4

Inspect parts and report and record results

3.5

Verify gasket condition and replace, as required

3.6

Clean cases and bands during and after repair, as required

4

Perform test

4.1

Select appropriate tests for the type of quartz watch

4.2

Select and use appropriate workshop testing equipment

4.3

Test quartz watch output signals using industry-specific equipment

4.4

Assess mechanical condition, including freedom of gear train, as applicable

4.5

Maintain testing equipment

4.6

Record test results

5

Analyse results and determine faults

5.1

Interpret test results

5.2

Carry out further testing to locate faulty components, as required

5.3

Confirm results against manufacturer specifications

5.4

Identify faults from test information

5.5

Evaluate record and communicate recommended servicing requirements

Foundation Skills

This section describes those required skills (reading, writing, oral communication and numeracy) that are essential to workplace performance in this unit of competency.

Foundation skills essential to performance are explicit in the performance criteria of this unit of competency.


Range Statement

This field allows for different work environments and conditions that may affect performance. Essential operating conditions that may be present (depending on the work situation, needs of the candidate, accessibility of the item, and local industry and regional contexts) are included.

Types of quartz watches include one (1) or more of the following:

analog, digital and duo displays

anadigi

calendar and/or moon phase

chronograph and perpetual calendar

alarm and kinetic

auto quartz

Record and document repair process includes one (1) or more of the following:

reference to manufacturers' technical guides

customer written quotation detailing faults

recommendations of most appropriate service procedure

estimation of replacement part

time spent on procedure

Tools and equipment include one (1) or more of the following:

watch case opening and closing tools

hand tools, including:

tweezers

screwdrivers

eyeglasses

Tests include one (1) or more of the following:

acoustic, capacitive and inductive pick-ups/sensors

quartz crystal oscillating signals (32 KHz)

voltage, resistance and current consumption

output pulses (integrated circuits)

pulse generation of step motor

lower working limit

capacitive rate

inhibition rate

Workshop testing equipmentincludes one (1) or more of the following:

quartz timing machines with acoustic and capacitive pick-up

inductive pick-up sensors

multimeters

variable voltage supplies

pulse generators

Faulty components include one (1) or more of the following:

quartz crystal

integrated circuits

electronic circuits

coils

step motors

gear train

dial train

dials and hands


Competency Field

Horology