What Is the FNIRSI 1014D Signal Generator Used For Malaysia?
What Is the FNIRSI 1014D Signal Generator Used For Malaysia?
Why does the FNIRSI 1014D Oscilloscope include a signal generator?
For many electronics users, the oscilloscope function is easy to understand:
Connect the probe and observe the waveform.
But the built-in signal generator adds another useful capability.
Instead of only measuring an existing signal, you can generate a known test waveform and apply it to a suitable circuit.
This can be useful for electronics troubleshooting, circuit testing, education and basic development work in Malaysia.
What Does a Signal Generator Do?
A signal generator produces an electrical waveform with selected characteristics.
Depending on the available settings and waveform type, users can generate a signal and feed it into a circuit under test.
The oscilloscope can then be used to observe what happens to that signal.
A simple test arrangement may look like:
Signal Generator → Circuit Under Test → Oscilloscope
This allows you to actively test how a circuit responds.
Why Combine an Oscilloscope and Signal Generator?
Traditionally, an electronics workbench may have separate instruments:
Oscilloscope
Function / Signal Generator
The FNIRSI 1014D combines these functions into one unit.
This can be convenient for:
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Electronics repair
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Technical education
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Circuit experiments
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PCB troubleshooting
-
Basic R&D
-
Hobby electronics
It can also reduce the number of separate instruments required for basic waveform experiments.
Application 1: Testing an Amplifier
An amplifier needs an input signal before you can properly observe how it responds.
You can use the signal generator to provide a suitable test signal.
For example:
Generator → Amplifier Input
Then use the oscilloscope to observe the input and output.
With the two oscilloscope channels, a basic arrangement could be:
CH1 → Amplifier input
CH2 → Amplifier output
You can then compare both waveforms.
What Can You See When Testing an Amplifier?
Depending on the circuit and test conditions, waveform comparison may help reveal:
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Gain
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Distortion
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Clipping
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Missing output
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Reduced output
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Unexpected waveform changes
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Signal instability
For example, if the input is a clean waveform but the output is heavily distorted, further investigation of the amplifier circuit may be required.
Application 2: Testing Filter Circuits
Signal generators are also useful for basic filter experiments.
For example, you can apply a test signal to a filter and observe its output.
A basic setup may be:
Signal Generator → Filter → Oscilloscope
By changing the input frequency, you can observe how the output changes.
This is useful when learning about or troubleshooting:
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Low-pass filters
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High-pass filters
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Band-related filter circuits
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Signal-conditioning circuits
For precise frequency-response characterization, more specialized test methods may be required.
Application 3: Signal-Path Troubleshooting
Suppose an electronic circuit has several stages:
Input → Stage 1 → Stage 2 → Stage 3 → Output
But there is no output.
Instead of waiting for the original signal source, a technician may be able to inject a suitable known test signal.
The oscilloscope can then be used to trace that signal through the circuit.
If the signal is visible after Stage 1 but disappears after Stage 2, troubleshooting can focus on that section.
This can make fault finding more systematic.
Application 4: Electronics Education
The signal generator is particularly useful for students learning electronics.
Instead of only reading about waveforms, students can generate a signal and observe it directly.
They can experiment with:
Frequency
Amplitude
Waveform shape
Circuit response
They can then connect resistors, capacitors, amplifiers or other suitable training circuits and observe how the waveform changes.
This makes the FNIRSI 1014D useful for technical colleges, training centres, engineering students and electronics courses.
Application 5: Checking a Known Signal Against Circuit Output
When troubleshooting, it helps to know exactly what signal is entering the circuit.
Using the built-in generator gives you a controlled starting point.
You can then ask:
Is the input correct?
Does the signal reach the next stage?
Does the amplitude change?
Does the waveform become distorted?
Does the output disappear?
These questions can help narrow down the faulty area.
Why Are Two Oscilloscope Channels Helpful?
The dual-channel oscilloscope is particularly useful when working with a generated signal.
For example:
Signal Generator → Circuit
CH1 → Circuit input
CH2 → Circuit output
Both signals can be viewed together.
This is much more useful than repeatedly moving a single probe between the input and output.
You can directly compare how the circuit changes the waveform.
Can the Signal Generator Test Any Circuit?
No.
A signal generator should not be connected blindly to an unknown circuit.
Before injecting a signal, you need to understand:
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Expected input voltage
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Suitable signal amplitude
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Suitable frequency
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Circuit impedance
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Grounding
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Maximum input limits
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Whether external voltage is already present
Applying an unsuitable signal may cause incorrect results or damage the circuit or test equipment.
Signal Generator Is Not a Power Supply
This is an important distinction.
A signal generator produces test waveforms.
It should not be treated as a normal DC bench power supply for powering equipment.
For electronics work, these instruments have different roles:
DC Power Supply → Powers the circuit
Signal Generator → Provides a test signal
Oscilloscope → Observes the signal
Multimeter → Measures electrical values
Together, they form a useful electronics troubleshooting setup.
Who Benefits Most from the FNIRSI 1014D Signal Generator?
The built-in signal generator is particularly useful for:
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Electronics repair technicians
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PCB repair
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Engineering students
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Technical colleges
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Electronics training centres
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Hobby electronics
-
Circuit development
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Basic R&D
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Amplifier troubleshooting
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Filter experiments
If you only need to check simple DC voltage, a multimeter may be enough.
But if you need to generate, observe and compare waveforms, an oscilloscope with a signal generator provides much more capability.
FNIRSI 1014D – Two Functions in One Instrument
The main advantage of the FNIRSI 1014D is not simply its oscilloscope specification.
Its practical value comes from combining:
Dual-Channel Oscilloscope
Signal Generator
This allows users to generate a known waveform, feed it into a suitable circuit and observe the response using the same instrument.
For electronics repair, education and general circuit testing, this can provide a practical entry-level test setup.
Looking for FNIRSI 1014D in Malaysia?
For enquiries about the FNIRSI 1014D Oscilloscope with Signal Generator in Malaysia, contact MTM Precision Sdn Bhd.
If you are unsure whether the signal generator is suitable for your circuit, you may WhatsApp us a photo of the PCB, equipment or intended application first.
MTM Precision Sdn Bhd
Showroom & Service Centre:
No. 29-1 & 29-2, Jalan Bandar 18,
Pusat Bandar Puchong,
47160 Puchong, Selangor, Malaysia.
Tel: 03-8080 7172
WhatsApp: +6016-660 7346
Email: mtmpre@yahoo.com
Website: www.mtmpre.com.my
Serving customers across Selangor, Kuala Lumpur, Johor, Penang, Melaka, Negeri Sembilan, Perak, Pahang, Kelantan, Terengganu, Kedah, Perlis, Sabah and Sarawak.
05 Oct 2026
