Small Scratches Big Problem- DVD Player No Disk Error
The complaint of this Pensonic DVD player was no disc even though the disc already inserted. This kind of complaint (no disc) is actually quite common in DVD player. It can be due to bad ribbon cable, bad laser beam (and assembly), spindle motor and etc.
As usual, the cover had to be removed in order to see what is wrong inside (troubleshooting). The cover had been removed and you could see the mainboard at the right side, power board at the left and disc assembly in the center.
While I was looking at the internal parts, I saw that the ribbon cable was actually touching on the disc.
A-ha! this could be the reason why there was “no disc” detected. I checked on the continuity of the ribbon cable and true enough there was no continuity between the two ends. It was a small scratch but it cause big problem to the DVD player.
I can actually repair that section of the cable by applying a bridge solder on the broken section but since I have new cables in my compartment, I decided to use a new one as seen from the photo below.
Once the new ribbon cable is fixed, I turned on the DVD player and could see the laser beam (taken with camera).
Please take note that do not see the laser beam with your bare eyes otherwise it can cause complication to your eyes and even go blind.
When the disc was inserted to the player, it started to play-see the photo below. Another job done with some nice profit. By the way if you want to learn how to repair DVD player you can get Humphrey’s Ebook HERE.
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/power-blinking-fault-in-yamaha-psr-3000-keyboard/
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George
February 22, 2016 at 9:23 pm
Hello,
nice fix. I have 2 DVD players with no disc error and probably with similar problem. Can you suggest websites where I can buy motors, laser beams, and cables or general fuses and other electronic components?
Thanks in advance.
George Greenfield
February 22, 2016 at 10:00 pm
Suranga,
Seen this before myself.I didn't have a cable so I repaired with some small wire and solder. Great job!
George
angelo
February 22, 2016 at 11:13 pm
Good article
thank you.
i've a question
i need a substitute
for 4v 680 uf capacitor
can i use 6.3v 820uf
instead of 4v 680 uf?
If not then plz suggest me a few ones, thanx
Jestine Yong
February 25, 2016 at 11:06 am
Hi Angelo,
Yes you can use 6.3 volt 820uf to replace the 4 volt 680uf.
Jestine
Mark
February 23, 2016 at 5:36 am
Hey Suranga,
Thanks for your article. Don't you just love it when it is a simple repair? It is still the diagnosis that is important and brings the results.
Parasuraman S
February 23, 2016 at 8:14 am
A good turn of event for you! Your keen observation helped you reduce the time of trouble shooting! Very interesting! Pl keep sharing!
Humberto
February 23, 2016 at 12:48 pm
Another device saved from the dump. Congratulations.
Robert Calk
February 23, 2016 at 11:01 pm
Good job, Suranga. And thanks for warning people about the danger of the laser.
Corriete
February 24, 2016 at 4:51 am
mr never answers the questions post to him. very disappointed in this technician if he is one i don't know..
Humphrey Kimathi
February 24, 2016 at 5:47 pm
Hi Corriete,
Sorry for being disappointed, but we can give Mr.Suranga a credit of doubt, maybe he is not aware about responding to feedback from readers, i suggest we request the admin of this blog Mr.Jestine Yong to get in touch with him about this...that is my take.
Regards Humphrey Kimathi
Kenya
Jestine Yong
February 25, 2016 at 11:02 am
Hi Corriete and Humphrey,
There are many types of writers/contributors in this blog:
1) Some will provide the repair articles and response to the questions
2) Some will provide the repair articles and only respond occasionally
3) Some will provide the repair articles with no response to the questions asked
There are no right or wrong about this if the author had chosen not to respond to all the questions and they have their own right for doing this. I can't force all the authors that they must reply to all questions. You have to understand that the information provided by the authors are free for you to read and learn and they don't charge a single cent. So whether they want to respond is depend on them. Unless they charge you a certain fees for the articles and promise to support you but they don't, then it is the author fault.
Jestine
Luciano Khware
February 24, 2016 at 10:56 pm
Hi Suranga Bandara,
Nice repair work done. Congratulation
May someone help me get the Power circuit diagram of Treadmill Talent 7500 TD-1600-K
Thanks in advance
Regards!
Luciano