sharp tv model 20AG1-S repaired
The sharp tv fails to power on.It was damaged by a high voltage as seen on the power section.
the choke resistor is burnt,power capacitor bulged and it uses an str6654 which got damaged also.As seen above it is a clear evidence of high volt problem.I replaced all the bad component but alas it failed to power on,until i detect this bad resistor besides the power capacitor.
After changing it the tv works perfectly.All the bad components are shown below.


neyod
Tips on how to improve your repair skill
Everyday, there is need to sharpen up your skill as a repairer.New trends are evolving in the technological world and these gadgets due to a situation or the other develop faults and surely needs to be repaired.Today,I want to share some useful tips on how you can improve your repair skill so as to meet the challenges of repairing the present electronics gadgets.
1. Be internet friendly.There are lots of resources on the internet that helpful and expository to the repairman,embrace these resources and your skill will soar high.
2.Buy ebooks and join forums.There are some necessary information on repair that you can not access for free on the internet unless you buy repair ebooks.Try investing your money on this books and join forums-free and paid,you will see how rewarding it will be.
3.Buy latest repair tools.Different type of tools are being manufactured everyday to make repair easier nowadays,when you come across those tools buy them,it will make your work easier.
4.Download service manual and schematic diagrams.Study and know how to use schematic diagrams very well,they are helpful and will really improve your repair skill.
5.Make friends with those that are more experienced than you are in your field.They will contribute a lot to your repair skill.
6.Move closer to your God and always seek Him.He is the ultimate source of knowledge.
          These tips had been helping me in developing my repair skill,if you have any other tips on this subject ,please drop it in the comment box it might be helpful to someone out there.

neyod
Dvd power supply repaired
The dvd was brought in with the complain that it fails to power on.I unscrew it and check the fuse,it gave me a perfect reading on my meter.I plugged it in AC to take volt readings at supply out to mainboard and detect that there was no voltage at the output.The voltage supply suppose to give me 12v,-12v,gnd and 5v.At this point I need to unplug and come back to the primary side of the power supply to check the components therein for faults.The diodes ,resistors tested fine and was wondering where the fault could be.I had to plug it again and take AC readings and it was then I detect that one of the terminals of  filter coil has a broken link so the AC volt is not passing to the rectifier.The fault was resolved by changing the coil.

neyod
The Leakseeker89
I came across this short circuit finder on jestineyong website,though I have not been opportuned to get hold of this equipment in order to verify how perfect it is but I am pre sently how i can buy it online.Expect my review on it immediately I used it myself,meanwhile you can click on this link to see how it was used to correct a fault:.www.jestineyong.com/short-circuit-finder-test-equipment/

neyod
Qlink Rechargeable Fan Repaired
The fan stopped charging,the indicator light fails to lit when it is plugged to an electric socket.I discovered that the rechargeable fan make use of a transformer and rectifier as power source and the transformer is burnt.Replaced the burnt ttransformer with same volt rating and it starts working again.

neyod
LG 32” plasma tv with sound but no picture repaired

A customer called on me to help her check this tv out.There is sound on the tv but the screen is dark without any picture.Normally when this type of fault occur the prime suspect is the inverter board but this is a plasma tv and it comprises of the ysus and zsus board which serves as its own inverter board.Firstly,there is three bulged capacitors on the power board,I changed it with the hope that this will correct the fault but it does not.

thereafter I checked the ysus board and detect 2 faulty 2.2ohms resistors.In troubleshooting when such resistors break down it is adviseable you check the board further for faults that may have resulted in the breakdown of these resistors.I detect a shorted mosfet and diode on the ysus board. Fortunately for me I have the same board in my workshop so I did not bother myself repairing it,I just replaced it and it worked perfectly.Hope to find time this week to repair the faulty ysus board.



ysus

neyod
Its Getting better
Its good to be back again.I had stay away for sometime to perfect my
skill and make serious research in order to improve my
blogposts,things are changing fast especially in the technology field
and one needs to move fast with it.All praise to God for this new year
2014,i pray its going to be a blessed year for us all.

neyod
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neyod
Repairing Lcd Television
A lcd tv(32") was brought in for repair at my workshop.The maker is
'acoustic solution',I don't know they are into lcd because I had
repair their dvd products very well.The fault is that when it is power
on,a black bar is at middle of the screen and it extends to the bottom
of it.On opening the cover,i saw two capacitors (15uf 450v)close to
the inverting transformers,one of it is bulged while the other looks
fine.Ranging my digital multimeter to esr i detect both capacitors are
faulty so i changed them with same value.when the lcd was powered the
fault was gone.

neyod