Sunday, 25 December 2011

The Conslucion

Assalamualaikum and Good Afternoon...

This week, is Dr Kamal turn and its the last class for ESE. This week, Dr Kamal taught us about Digital Electronic and Binary Numbers.First, the Digital Electronic, its present as signal in analog levels. its have the value of 1 and 0 only.


They are usually made for logic gates and simple electronic. After brief explanation about digital electronic, Dr Kamal give us binary exercise that is between 1 and 0 and convert it to normal number or vice versa.

This class give us some information about the binary numbers and how its changed..

That All for this time and Thank you..

Monday, 19 December 2011

Electrical Class and Sayonara En.Redzuan

Assalamualaikum and very good evening to readers out there...

This time, the class start with one hour of completing and finishing the circuit given to us... As last week, my circuit is already in good shape and its light up like it suppose to,how this time, my double sided circuit gone haywire.. i dont know what happen as the connection is same with the last time and nothing is wrong with it. It sad to not able to submit both of the circuit even though the other circuit is perfectly working. in one hour, i try to fix it but the problem still there... finish the one hour, En. Redzuan start the class of electrical.

The topic is how electricity is generated in Malaysia and what is Malaysia using(phase). First, Malaysian electric source is from Hydro generator, Gas, Coal and Oil. But now, Malaysia is most depend on the Hydro. En. Redzuan said, if there is a chance, he want to make a visit to a dam in Kelantan where the bus can enter near the turbine(mean we can see how it works!). Next, phase...Phase, there are 3 type of phase that is Red, Yellow and Blue. There are two mode, star and delta mode(dont know right or not) which at star mode, there are neutral.

Then, En Redzuan talk about the circuit breaker, the ELCB(Earth Leakage Circuit Breaker) and RCCB(Residual-Current Circuit Breaker).For home, we using the ELCB and for industry, they using RCCB, for more information on the ELCB and RCCB you can visit Earth_leakage_circuit_breaker and Residual-current_device .

After finish with the electrical briefing part, En Redzuan then start with the demonstration of the assembling the lamp for our practical. For your information, we have to divide into group and each one have 2 person. Then he start explaining on how to cut the wire the correct way, how to connect the wire to the lamp, and much more.

He also show how to connect the plug extension and check whether the things is connected or not..hest test it using his own made buzzer.. After that, the class finish...

 15/12/2011 - Sayonara En. Redzuan

The last class with En. Redzuan, we have an assessment on assembling the extension and the fluorescent lamp(dc and ac) connection.

Before we start the assessment, once again En Redzuan showed us how to assemble the part. After that, its the time that we do it on our own. Syahmi and I form the group and start doing the job. Im doing the lamp and Syahmi take over the extension. Its my first time assembling the lamp and its quite slow.. Never mind of that my lamp housing is not good because its already break at the connector but still usable.. After finish asembling the lamp, i try to turn on it but its not on..at the same time the other group also try to on the lamp but not successful...Then the room is short..however, i check my lamp connection and all is correct, then i try again and by adjusting the lamp a little bit at its connector, and then, its light up..After that, syahmi finish with the extension, after few test and inspection by En.Redzuan, we go on with DC... The DC connect directly and we finish it successfully..

After that, its time to back and time to say goodbye to En.Redzuan as its the last class with him for this semester.. That all..Thank you..

Saturday, 10 December 2011

Canon and Board Assembling!

Assalamualaikum and very good morning! Its Saturday, right? heheh... :)

Today, im going to write about my experience on our Industrial Visit to Canon Opto SDN BHD.

The visit  was plan by my Fellow friend, Luqman, as its a requirement to have an Industrial Visit for ESE courses. The journey start from KSJ, at 7.30 a.m.. Its 6 of December 2011. Escorting us for the visit is all the lecturer from ESE course that is Dr Kamal, En Redzuan and Mr Rasli.

 The journey to reach there take about 1 hour as we reach there at 9 a.m. . After out from the bus, Dr Kamal distributed a paper that give briefly what should we have do and the timetable of the visit. Next, photograph session with canon people and then straight to the Hall. The introduction by Canon Opto, the brief history of Canon and the development in the factory. From what i get, there is two part in the Canon Opto, that is department of Lens and i dont quite remember the other one, But both operation differently with one is making a case for a lens and one is making the lens itself.

The first one we go to Surface Mount Technology section where all small part were assembly and soldered. Its large and the working environment seem to be quite not busy because the flood affecting the Thailand has tremendously reduce the amount of the part of the component needed.

After the explanation, we went to department where camera and lens were assemble. Here, we are required to wear anti static plastic on our shoes and to prevent dust on dirt from the shoes fall off in the factory. Before entering the room, i peek around and see QA(quality analysis) room ,were people work to inspect what is the defect on the camera that have return to them. They likely working on group to manage it.

Next, the person in charge brought us into the deep of the factory, ____I will update the flow later, as my note book missing___ ...In the factory, we can only see but restricted to touch anything of the component. The machine used is really advanced and the workforce is really great as people focus and concentrate on their work 100%.

The people in charge of our group said that, before they can work there, they will be given 3 month training on how to assembly the component and if the people mastered it, they can continue to training on other component assembling as they can improve their skill for a better position of job. The also RO(replacement operator) that has learn all the skill that is needed in the factory to replace  someone if there is emergency.

Reaching the final stage of the visit in the department, we can see and touch as well as use the new produced camera, and there is NSC stand for Normal, Semi and Critical. Its for the part-part of the component assembling in the camera.

After finishing the visit on the camera department, we went to Lens Department were we can see how lens get from Thailand get remount and reshape. However, as i told you, the effect of Thailand's Flood is really significant, mostly, the lens department also on hold. We only managed to see a few people working.

Coming to the end of the Visit, there is Q & A session were i ask them is there any research centre for Canon in Malaysia. They answered me , there is initiative for it but end with failure. I am quite disappointed with it because if we have the research centre, it will be more interesting to see how the lens been altered.

However, the visit is great and i feel some field in Canon Opto are connect with our courses.  Thank you.

Next Class--- Board Assembling

This is the second part after the first one board assembling that is required amount of time.. This time, En Redzuan ask us if we want to do another circuit but i refused to do so because i'm successfully make the board to work. Syahmi, Tew and I were the one who continue with the board given last time.

However, to kill my time, i try the first board that i done last time and try to make it work, even though the copper for the switch has fall off, i try to connect it and check if there is some error on it. The circuit successfully light up work as it supposed to. The weird is, for the second one, Firdaus, Mahmoud and Wee can be light up but not suppose to work like its should be, i try to look on it but i failed to find what is the causes of it..

At the end of the class, we all managed to finish the circuit and its should be submitted on  13 December 2011.

As i feel really satisfied that my circuit work, i feel sympathize with the one who solder it but its not work, because, the effort to solder the SMD is really tiring because we need to focus on the eyes and on the board. This is where patient is needed really-really much. That All.. Thank you

Friday, 2 December 2011

The Mark and Board Making...

Assalamualaikum and Very good day of Friday..The leader of the days..

Dont you feel weird why i put The Mark first and its even in the title?

Because today Dr Kamal came into our class and he showed us the our class mark. Well, what i can say, overall  of the class is good but me? Not really good. It must be slack in some way such as late journal publish maybe.. But that for the first half of the semester and the next half? I'm going to score it and not to take it easy...

Depressing cat...hahaha


After Dr Kamal show the mark, i think i wanna to meet up with him to do something about the score but time is constraining me.

However, let that matter side for right now, let focus on the board making. Before the day of the board making, En Redzuan show us the way to create the board by showing the video of the board making. The first one is, after designing and printing the schematic, the procedure to make a PCB start. A good site for references.Create-Printed-Circuit-Boards and  homemade-pcbs . Credicted Homemade Pcbs for the picture..

Schematic..
Printed Schematic
First, make sure to use what board to use, either the single sided or the double sided board.
After decided board for the suitable schematic, the its come to UV ray to make the schematic on the board..
After UV
UV preparing!

Next, developing the circuit using the sodium solution that tear of the green layer of the PCB. To do this, we need to concentrate and cannot wandering around because, if we do it too long, even the schematic also can be wipe out.



After the developing, the etching come in, that is using acid Feric Chloride. its to remove the copper layer that not going to be use. Etching consume some time.



After that, we can choose to drill or to cut the board. The process of cutting is simple but the process of drilling need some precision on it. if not, then the board drill is not good.




Finally, the process of soldering the board with the component. The soldering part is very cautious work because if we dont, the copper gonna come out or the solder paste will be looking ugly and the component will not attach properly. Some references for soldering.. Soldering..

Next Class - Making Our Board

 On the next class, we need to practice what have we watch before. The time given is 3 hours but with the numbers of people in our class, that is not enough, However, Mr Redzuan came up with a plan by dividing the student into a group. Syahmi and I were in one group and we make the second board first,after the procedure  done till drilling the PCB, the time already at 4.45 p.m. and i'm just soldering the first board and even then, didn't manage to finish it up and Mr Redzuan said that is okay to bring it to hostel.

Overall its a Hectic and Tiring even tedious day because of the tension and stress feel when youre the first timer to do that but i have to forced my self and not to be a spoiled student and work harder! Thank you.