Coby DVD Player Repaired
Customer complains that when he plugs the player into the outlet an explosion occurred and some smoke came out of the player.
First thing I did was to open the player up and check for any sign of burnt component… I did not want to apply power because the complaint was smoke and explosion inside the player.
After that I notice a Capacitor shell with the markings of 10uf 16v (See picture) fell out of the player.
I look for where the Cap came from and I replaced it.
I did not stop there I continue checking the other surrounding components and found all to be good.
In the picture above you will notice that the fuse is not a glass fuse but a piece of wire on the Circuit board. I unsoldered the wire and did the light bulb trick. The light bulb did not light, and the power came back On but there was no sound coming out from the speakers. I use some other speakers for comparison and the problem was still there. I began to trace the exploded cap and it leads me to a power amplifier IC TA8227P.
I suspected that this IC has been damage as well and I directly replace the IC and tried the radio again and there was sound from the speakers. Problem solved.
This article was prepared for you by Andre Gopee from Calitech Limited Trinidad West Indies.
Please give a support by clicking on the social buttons below. Your feedback on the post is welcome. Please leave it in the comments.
By the way if you have any good repair article that you want me to publish in this blog please do contact me HERE.
You may check out his two previous repair articles below:
https://www.jestineyong.com/24-vdc-cosel-power-supply-repaired/
https://www.jestineyong.com/wagan-tech-ac-inverter-1500-watts-repaired/
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Humberto
October 27, 2014 at 9:40 pm
Good repair Andre Gopee. Keep up and congratulations.
Andre Gopee
October 27, 2014 at 11:31 pm
Thanks and you are welcome Mr. Humberto.
marco tapia
October 27, 2014 at 9:48 pm
Hi Andre gopee, like the article and good job on your repair.
Andre Gopee
October 27, 2014 at 11:31 pm
Thank You and your welcome.
Yogesh Panchal
October 27, 2014 at 11:15 pm
Andre Gopee ,good job and thanks for sharing.
Andre Gopee
November 1, 2014 at 1:36 am
Thank You.
Corriete
October 28, 2014 at 12:09 am
yes! another job well done
Andre Gopee
November 1, 2014 at 1:37 am
Thank You.
Osman AlSinnary
October 28, 2014 at 1:14 am
Good Job
Andre Gopee
November 1, 2014 at 1:38 am
Thank You,
thanh chelseabun
October 28, 2014 at 2:22 am
I repaired an old radio-cd player-catsetle player like this and its TA8227P IC is bad too. Its left channel still work but whole IC is too hot even with a heat sink
Robert
October 28, 2014 at 4:13 am
Good job Andre. Thanks for the article. People should know not to bypass fuses.
Andre Gopee
November 1, 2014 at 1:40 am
Thanks and yes bypassing fuse can be dangerous and costly.
Imraz
October 28, 2014 at 4:56 am
Nice Article with good pictures.Thanks for sharing keep up the good work
Andre Gopee
November 1, 2014 at 1:40 am
Your welcome
moshe
October 28, 2014 at 5:17 am
VERY nice repair!!
Andre Gopee
November 1, 2014 at 1:41 am
Thank You.
james
October 28, 2014 at 10:36 am
It is always this problem of capacitor
Andre Gopee
November 1, 2014 at 1:41 am
Thank you.
Rudi Wijaya
October 28, 2014 at 3:49 pm
Did someone repair it before? That's dangerous to replace fuse with a piece of wire, you do a good job and replace fuse properly. Thanks sir for the article!
Andre Gopee
November 1, 2014 at 1:43 am
it was not repaired before... that is the original fuse that I found. and Thank you.
Joshua Oloo
October 29, 2014 at 12:05 am
Good work.cheers.
Andre Gopee
November 1, 2014 at 1:45 am
Thank You.
Luciano
October 29, 2014 at 4:36 am
Hi Andre,
Thumbs Up for the nice and informative repair article. Keep it up!!
Luciano
Andre Gopee
November 1, 2014 at 1:44 am
Thank You.
beh
October 29, 2014 at 11:42 am
Andre: thanks for sharing this repair.
Andre Gopee
November 1, 2014 at 1:45 am
Your welcome.
t.kingsley
October 29, 2014 at 7:24 pm
very nice sir, did a great job.
t.kingsley
tamilnadu
madurai-20
Andre Gopee
November 1, 2014 at 1:46 am
Your welcome
Taofiki ishola Akinleye
October 29, 2014 at 8:15 pm
Its good article keep it up
Andre Gopee
November 1, 2014 at 1:46 am
Thank You.
reza
October 29, 2014 at 8:20 pm
hi
thank you for this good experiment.
Andre Gopee
November 1, 2014 at 1:47 am
Thank you
zed
October 30, 2014 at 11:58 am
Nice repair andre. thanks for sharing. have you replace the wire with a fuse. because it can cause fire if you do not change it if happen that something to be shorted in primary?
Andre Gopee
November 1, 2014 at 1:49 am
Zed thank you and yes I did change it... I forgot to take a picture of it...maybe that is why the Cap blew out because the fuse was bypass. if the fuse was there the fuse would of blown instead of the Cap.
Akins
October 31, 2014 at 3:03 am
Good job sir.I will to know if there are any other professional ways to know if an IC is bad rather than suspecting it like you did.Thanks
Andre Gopee
November 1, 2014 at 1:53 am
Yes there is... if you check ECG or online for part number and understand what the IC does you can check for inputs and outputs. Jestine Young has ebook on SMPS where he give an example of testing PMW ic... You should check it out and from there you will have a general knowledge of IC operations.
Fernando Frias
November 5, 2014 at 7:52 pm
Good job Mr.Gopee thanks for sharing with us!
Dan
November 7, 2014 at 7:12 am
good article Thanks for the info.
Gurpreet
August 4, 2015 at 1:59 pm
Really a good job and thanks for sharing it with us.