This unit applies to work in watch service centres, jewellery and watchmaking stores and kiosks offering watch service and repair.

The unit covers the skills required to diagnose 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. Appropriate diagnostic testing procedures are required to identify or determine the faults in a quartz watch and the extent of servicing required.

For repair of mechanical faults refer to the appropriate mechanical watch service units.

Band: A

Unit weight: 2 points

MEM21001A

Replace watch batteries, capacitors and bands

ELEMENT

PERFORMANCE CRITERIA

1. Establish servicing requirements and liaise with customer

1.1. Verify watch condition and performance concerns with customer

1.2. Prepare written and verbal quotations

1.3. Agree with customer on recommended service procedures to remedy faults

1.4. Record and document repair process

2. Open and close watch cases

2.1. Determine need to open case for further testing

2.2. Select and use workshop tools and equipment appropriately

2.3. Open and close watch cases correctly

2.4. Inspect parts and report and record results

2.5. Verify gasket condition and replace as required

2.6. Clean cases and bands as required during and after repair

3. Perform tests

3.1. Select appropriate tests for the type of quartz watch

3.2. Select and use appropriate workshop testing equipment

3.3. Test quartz watch output signals using industry-specific equipment

3.4. Assess mechanical condition including freedom of gear train, where applicable

3.5. Maintain testing equipment

3.6. Record test results

4. Analyse results and determine faults

4.1. Interpret test results correctly

4.2. Carry out further testing, as required, to locate faulty components

4.3. Confirm results against manufacturer specifications

4.4. Identify faults from test information

4.5. Evaluate, record and communicate recommended servicing requirements

Required skills

Required skills include:

using testing equipment (e.g. multimeter and quartz timing machines)

analysing test results for current consumption and voltage

solving problems

replacing cells

accessing and interpreting manufacturer service or technical guides

communicating with relevant personnel

replacing watch bands, straps or bracelets

Required knowledge

Required knowledge includes:

types of quartz watch construction and components

function/operating principles of electronic quartz watches

types of cells, power sources, capacitors and electronic storage units

observation and inspection techniques

occupational health and safety (OHS) regulations and procedures

The evidence guide provides advice on assessment and must be read in conjunction with the performance criteria, required skills and knowledge, range statement and the Assessment Guidelines for the Training Package.

Overview of assessment

A person who demonstrates competency in this unit must be able to diagnose faults in quartz watches to industry standards, manufacturer specifications and in accordance with safety regulations and procedures.

Critical aspects for assessment and evidence required to demonstrate competency in this unit

Assessors must be satisfied that the candidate can competently and consistently:

select and perform appropriate tests

use testing equipment

analyse test results

determine faults based on test results and visual inspection

report most appropriate service procedures.

Context of and specific resources for assessment

Assessment may occur on the job or in a simulated working environment. Access is required to real or appropriately simulated situations, including work areas, materials and equipment, and information on workplace practices and OHS practices.

Where applicable, reasonable adjustment must be made to work environments and training situations to accommodate ethnicity, age, gender, demographics and disability.

Access must be provided to appropriate learning and/or assessment support when required. Where applicable, physical resources should include equipment modified for people with disabilities.

Method of assessment

Assessment must satisfy the endorsed Assessment Guidelines of the MEM05 Metal and Engineering Training Package.

Assessment methods must confirm consistency and accuracy of performance (over time and in a range of workplace relevant contexts) together with application of underpinning knowledge.

Assessment methods must be by direct observation of tasks and include questioning on underpinning knowledge to ensure its correct interpretation and application.

Assessment may be applied under project-related conditions (real or simulated) and require evidence of process.

Assessment must confirm a reasonable inference that competency is not only able to be satisfied under the particular circumstance, but is able to be transferred to other circumstances.

Assessment may be in conjunction with assessment of other units of competency where required.

Guidance information for assessment

Assessment processes and techniques must be culturally appropriate and appropriate to the language and literacy capacity of the candidate and the work being performed.

The range statement relates to the unit of competency as a whole. It allows for different work environments and situations that may affect performance. Bold italicised wording, if used in the performance criteria, is detailed below. Essential operating conditions that may be present with training and assessment (depending on the work situation, needs of the candidate, accessibility of the item, and local industry and regional contexts) may also be included.

Record and document repair process

Record and document repair process may include:

accessing manufacturers' technical guides

prepare customer written quotation detailing faults

recommend most appropriate service procedure

estimate of replacement part

time spent on procedure

Tools and equipment

Tools and equipment may include:

watch case opening and closing tools

hand tools (e.g. tweezers, screwdrivers and eyeglasses)

Tests

Tests may include:

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

rate (e.g. capacitive and inhibition)

Types of quartz watch

Types of electronic quartz watches may include:

analog display

digital display

duo display

anadigi

calendar and/or moon phase

chronograph

perpetual calendar

alarm

kinetic

auto quartz

Workshop testing equipment

Workshop testing equipment may include:

quartz timing machines with acoustic and capacitive pick-up

inductive pick-up sensors

multimeters

variable voltage supplies

pulse generators

Faulty components

Faulty components may include:

quartz crystal

integrated circuits

electronic circuits

coils

step motors

gear train

dial train

dials and hands

Unit sector

Horology

This unit contains employability skills.