No Power In Rikon DVD Player Repaired
The complaint from the customer was while watching a movie, suddenly he heard a loud bang from the player and after that the DVD player was totally dead.
I have tested the player and indeed it was no power. I opened the cover and saw that he fuse and the main filter electrolytic capacitor were bad. The e-cap was exploded as you can see from the photo below:
I continued to check on all the components in the power supply and all seems to be working fine except the power IC. The power IC legs were shorted to hot ground.
I then replaced the two faulty components except the main fuse. I did not connect the fuse as I need to do another test.
I connected a 40 watt bulb to the back of the main fuse soldering points and then powered On the player. The DVD player came back to life ( no more short circuit) and this means I can put the fuse back and fully turn the set On again.
Troubleshooting and repairing equipment with no power symptom is not that tough. What you need is more practice and practice will turn you into a better repairer.
This article was prepared for you by Suranga Bandara who owns an Electronics shop in Anuradapura, Sri Lanka.
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Note: You may check out his previous repair article in the below link:
https://www.jestineyong.com/motor-fault-in-telesonic-stand-fan/
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Maurizio C.
August 29, 2015 at 7:10 pm
Interesting article.
How do you choose the power of lamp to connect?
Allan
August 29, 2015 at 7:42 pm
Thumbs up Suranga. I like your repair job.
Suranga Electronics
October 26, 2015 at 1:30 pm
Thanks mr...
Robert Calk
August 29, 2015 at 8:22 pm
Good job, Suranga. The bulb not lit just means that there are no more shorts.
Suranga Electronics
October 26, 2015 at 1:32 pm
yes. thanks
Yogesh Panchal
August 29, 2015 at 10:16 pm
Suranga, Congratulations for another fix.
Suranga Electronics
October 26, 2015 at 1:31 pm
thanks
Merlin Marquardt
August 29, 2015 at 11:28 pm
Bad caps! Good repair. Still don't understand the light bulb test.
Joe
August 30, 2015 at 12:03 pm
Nice repair! Keep it up!!
Biruk Aweke
August 30, 2015 at 1:08 pm
Good repair and nice explanation.but most of the time we just use not less than 60watt lamp to chek the shorted circuit.
Mark
August 31, 2015 at 6:24 am
Hey Suranga,
Good job! You are right - the only way to improve our skills is to practice - mistakes and all!
I am only relatively new to the electronic repair area, but thinking back to just a few years ago to the skills that I have now proves that all it takes is a LOT of study, research, picking other peoples brains and (safely) playing with electronics.
I Love it!!
Suranga Electronics
October 26, 2015 at 1:38 pm
Thanks mr,
Hicham
August 31, 2015 at 6:40 am
Deat Suranga, your thread is awesome except a remark of bulb power! Normally it should be 100watts. Good continuation.
Henrique Jorge Guimarães Ulbrich - Brazil
September 1, 2015 at 11:47 pm
As a matter of fact, there is not an established rule about the ideal lamp power used as the provisional safety test. It depends of some other details, mainly the rated consumption of the gadget being serviced. The higher the lamp power, the less the protection of the equipment. On the other hand, a small wattage lamp means a higher resistance in series with the serviced equipment. The question is: at what extent could this extra resistance affect the test of the gadget being serviced? The answer is: it depends on the knowledge, sensibility, experience and skills of the repairer, among other less important things. Another thing to consider is: it's a provisional safety test, in order to confirm that there is not a significant short circuit present. Indeed, the final operational test (that proves the correct working of the equipment) will be performed further, with the fuse replaced on its place.
Humberto
September 2, 2015 at 1:14 am
Good repair Suranga. Congratulations and keep up your good job.
Suranga Electronics
October 26, 2015 at 1:40 pm
thanks.. you
reza
September 2, 2015 at 7:26 pm
hi Suranga Bandara
thank u.
NOEL
September 3, 2015 at 6:46 pm
This is great Thank you Suranga
Suranga Electronics
October 26, 2015 at 1:41 pm
thanks.. mr,
Ulises Aguilar Pazzani
September 16, 2015 at 11:10 am
Mr Bandara nice job is it ac dc volb
shekar
October 24, 2015 at 10:04 pm
how to test that power ic
Paul keburi
January 3, 2016 at 6:37 pm
hi you are a guru thanks for your help
Stephan
August 16, 2016 at 9:25 pm
Does this mean the player uses crappy parts? Would you recommend against buying one?
Sarath Dissanayake
September 12, 2017 at 3:53 pm
That is better, but I would like to know what is the meaning of 19:15 displaying on Rikon DVD player ?