Week 11 (Troubleshoot and Finishing)

Since we do this final project,
we learned a lot of thing..
Especially when we got problem about our circuit.

When our circuit doesn't work,
It's mean there's some things that we can go wrong are so obvious
that sometimes we forget to look for them.

Here is a partial list of things that we have to check before we start ripping the equipment apart:

Is it plugged in? 
Is it turned on? If the "ON" light is not lit, 
is the light burned out? 
Is the fuse blown? 

If the fuse is blown, replace it once and try again.
If it blows again, then there is a major problem somewhere;
do not keep replacing the fuse.

Are all the cables connected? 
To the right places? 

Then, We must to know where there is the most stress on the components.













we do the trouble shot again and again until it's work.
So, to do an effective trouble shoot we need to know how the circuits works,
we need documentation,
we need the right tools, and we need to be able to think logically...

Week 10 (Writing FYP Report and Troubleshoot)

Assalamualaikum..
This week, my partners and i decide to writing the FYP report.
Since the due date around week 17,
but we want to complete early to make sure that
to ensure no delay and complete work assignments in advance.

Besides that,
we must to planning and research about our report
and must take the details information.
Its also have a guideline that we must to follow
and must to be submitted within the period prescribed by the UniKL bmi.
To follow the guide to make sure we are not doing the mistake,
we can check and view at website at fyp.bmi.unikl.edu.my.
However, we also doing the troubleshoot problem for our project
to make sure our project can functioning or not.

In this time, after we solder the component,
we check and analyze that it's have a problem at the circuit.
So, we have a bit problem with our circuit..
The sensor that we used (photo transistor) does not functioning..
Then, we tried to combine it with Light Depending Resistor(LDR) and it's worked..


This is our main circuit for FYP project
that we do which have problem that must be troubleshoot and must detect the problem to solve it.

So, that's it what we have updated for this week.
Next week, we want to meet our supervisor to discuss about our FYP project
and presentation for industry day that around the corner.

Week 9 (Drilling And Soldering Process)

Soldering is defined as the joining of metals by a fusion of alloys
which have relatively low melting points.
In other words, using a metal that has a low melting point to adhere the surfaces to be soldered together. Consider that soldering is more like gluing with molten metal,
unlike welding where the base metals are actually melted and combined.
Soldering is also a must have skill for all sorts of electrical and electronics work.

In this week,as we plans before,
we discuss and agree to do the process drilling at the uv board.
To do this process,we go at 1st floor to use the equipment drill that already give to used.
To drill the hole at uv board, its have different drill bit which have small,normal and large.
But in my fyp uv board,
we just use a small drill bit.

The process we doing maybe not take a long time to make it.
The equipment that we used to doing the process are drill machine,and drill bit and spreader.
There is a box equipment that we used to do this process which are "super mini drill 1PK-500".

Inside the box, the component we used are drill machine (which used battery and can be rechargeable),
drill bit and charger. After that, we drill the hole at uv board which accordance with the polystyrene.
Finally, the process drill are succesfully done.

Then, my partners and i was planning to solder the component at the UV board.
Before that, we construct the circuit at the breadboard to test and make sure the circuit is functioning or not. So, to solder the component,
we must assembly the components at the UV board..
Make sure that we assembly the component which must focus at the component place such that we want to put at the UV board such as the value of resistor, capacitor,IC and others.
If  we put the components in wrong part or places,
its will become a big problem that the circuit will not functioning.
After assembly the components with a very well at UV board,
make sure we solder its with careful and orderly.
We put all the component at the PCB board with careful and orderly.

After that,
we used a black tape to make sure that when we do the process of solder,
the component are not drop.
When the components already in the setup,
we are ready to solder the component.
Make sure that, when solder don't careless
because once we solder lead on component
make sure it doesn't touch with another leg of component or line of the circuits.
Once we finish the process of solder,
we used cutter to cut the extra leg of the components.
Lastly,
the process of solder is finish with successfully and functioning.

Week 8(The Process of Etching and Setting Component on PCB)

The transfering process for printed circuit PCB

To transfer the printed circuit to PCB board, we made in several ways.
The usual ways, or is often done using tracing paper.
We draw circuit on tracing paper to produce the circuit for the front view, and rear view.
To draw the printed circuit on the PCB,
the circuit must be reversed prior to produce the component layout and circuit connections.
Below are the steps to move the drawing to the surface of printed circuit PCB:

a) The first is to design a printed circuit with the required shape.

b) Redraw the above printed circuit formed on tracing paper.

c) It’s sketched on the printed circuit board PCB
by using a pencil which is based on a circuit that has drawn on tracing paper that had overturned.

d) Lettering is used to redraw the circuit has been drawn with a pencil earlier in the PCB board.

e) The circuit must be determined before the process is complete the run the etching process.

The Etching Proces:


1) We put the print circuit trasparent at the UV Box.
After that, we put the UV board at the top print circuit and do the process 60s.



2) After that, we put the develop and pour and mix with the water then shake it.
This process want to make the circuit appear at UV board.

3) Thus, after done shake,
we transfer the PCB into etching tank and do the operation for 4-5 minutes.

4) Lastly,after the process and operation already done,
we use sand paper to clean the circuit board.
Finally, the circuit appear.