No Disk Message in Parker DVD Player Repaired-Model DVK432
When you turned on the DVD Player PARKER Model DVK432, and inserted any CD (CD- ROM or CD-RW) or DVD (DVD-R or DVD-RW) of audio or video the display started to show the message LOAD, and at some seconds later you could see on the front display the following message: NO DISK. Therefore the DVD Player did not play any CD/DVD at all.
The DVD Player case was disarmed first of all.
The first step was to test the output voltages of the internal DC Power Supply.
As we can see the output voltages: +5v; +12v and -12v (this one not shown on the photos) were correct.
On the other hand, once that output voltages from the DC Power Supply were correct, the other step was to check the CD/DVD mechanism.
When the CD/DVD Mechanism was checked at simple sight, everything appeared to be fine, there were not any pinion gear with any teeth broken, so far so good, but when the impedance of the Spindle Motor was checked, there was an error shown by the Digital Multimeter. The value measured was different from a good working Spindle Motor.
The Spindle Motor was extracted (by means of two little screws with the help of a screwdriver) and substituted by a new unit. And when the DVD Player was put into function, what a surprise, any kind of CD/DVD could be played (music and video).
The message of NO DISK on the front display was not shown again, So DVD Player repaired.
This article was prepared for you by Mr Humberto Rodriguez from Cuba. 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.
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If you wish to know more about DVD Player Repair then please click on the link below to check out Humphrey’s DVD player repair ebook:
http://www.electronicrepairguide.com/DVD-Player-Repair-Ebook.html
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karlo
October 11, 2013 at 10:25 pm
Hi Humberto,
Thanks for sharing! What a nice article! By the way, what should be the resistance range of a good spindle motor?
gcharal
October 11, 2013 at 11:04 pm
Thank you for sharing this useful information,
but i have one question.
In the first photo (where you are checking the psu voltages)
i see that the motor spins. But you found that the fault was
the motor. How does it spin then?
Can you explain, please?
Humberto
October 14, 2013 at 9:48 pm
Ok gcharal, the analys you have done is correct, but I really took those photos once the erquipment was mended, maybe they should not be placed at that part of the article, ok?. In my country, many PARKER of this model were sold, I have one, and the spindle motors failed a lot, mine worked for less than 4 months, and I had to replace it quickly.
gcharal
October 21, 2013 at 10:12 pm
Greetings to CUBA from GREECE!!!!
Thank you a lot, and keep on repairing!!!
Br123
October 11, 2013 at 11:17 pm
Mr Humberto, what did you expect to see for impedance on your mulitmeter for the motor? What did you see instead?
Humberto
October 14, 2013 at 9:55 pm
By readind the impedance of the spidle motor, I can know if it's in perfect condition
Bernie Scott
October 11, 2013 at 11:22 pm
Very good info....Lots of good tips here. I really enjoy reading this stuff.........keep it up....I am into repairing music equipment but am starting to branch out into other areas such as control boards for printing presses, etc...people ask me what do I repair....I tell them anything that either plugs into the wall or runs on a battery....now I find that I am getting more things to repair.....
Cheers,
Bernie
tusdi
October 12, 2013 at 12:25 am
Dear jestine,
Tanks for your articel, I can't speak english.. sory for that! But, I understand to read it. Very nice...
Tusdi
Nelson Caballero
October 12, 2013 at 2:38 am
As always pay close attention on spindle height/dc resistance, or by just turning the spindle plate and the number of rotation,or rotation noise, then check also the light coming out on the laser lense with light or no light. but be careful, you should not be too close to the lense. check/clean the end to end part of the flexi wire with pencil eraser. sometimes flexi wires are broken. Sometimes it is good to have a known good Optical device to swap in case uore in doubt.
Jumbe Mateyu
October 18, 2013 at 1:26 pm
Hie Nelson, I totally I agree with u on the importance of paying attention to the height of the spindle, resistance,number of rotations and noise and whether the lense is giving out light however Iam lost where you say "check/clean the end to end part of the flex wire with pencil eraser" please help me.Truly Iam lost.
Carlos Estrada
October 12, 2013 at 3:19 am
Excelent help excelente ayuda
Thank you Gracias
moshe
October 12, 2013 at 3:23 am
Hi Humberto
Nice article!
What made you think of checking the impedance of the spindle motor? Have you encountered problems with other spindle motors?
And do you recall the value you read vs what it should have read?
Humberto
October 14, 2013 at 10:59 pm
Yes, as I told previously, this kind of device has a spindle motor that is not too durable, therefore, it must be changed, the value I read was 7 ohms.
corriete
October 12, 2013 at 3:51 am
yes sir this is true. i have come across many like this and it was the spindle motor.great job
Khalid Ahmed Sheikh
October 12, 2013 at 1:09 pm
Hi Jestine
Realy i learned alot from your time to time emails now i started repairing minor electronics items basically i am an accountant by profession but i am fond of learing electronics
Thank you Jestine
Jestine Yong
October 12, 2013 at 5:44 pm
Hi Khalid,
Welcome to the world of electronics repair.
Jestine
Tim Gitari
October 12, 2013 at 1:54 pm
That was an excellent article from you sir.
Waleed Rishmawi
October 12, 2013 at 5:00 pm
thanks for the article.
there is a test you could do to check the motor. get an anolog meter and set it to x1 and put the testing probes on the wires of the motor. it the motor is good, it will start to spin taking the power from the meter. if it did not spin. replace motor.
Humberto
October 15, 2013 at 6:48 pm
Ok, thanks Mr.c Waleed Rishmawi, I've read many articles from you
Patrick
October 12, 2013 at 10:54 pm
Thank you for your article on repairing this unit.
Hermanto
October 12, 2013 at 11:38 pm
Hallo Jestine, I agree Mr Walleed Rishmawi comments. Sometimes if the motor could not spin we can try put some contactsspray on the spindle motor,and it works.
Jestine Yong
October 13, 2013 at 8:37 am
HI Hermanto,
Thanks for the comment.
Jestine
Robert
October 13, 2013 at 11:35 am
Thanks Humberto.
Percy Ichchaporia
October 13, 2013 at 11:23 pm
Hi Jestine and Humberto thanks for sharing the awesome article.
Jestine Yong
October 14, 2013 at 9:30 am
HI Percy,
You are welcome!
Jestine
Humberto
October 15, 2013 at 7:03 pm
Thanks to you and everybody too who read the awesome articles of Mr. Jestine Yong's blog.
Tinapa Faletiute
October 14, 2013 at 2:26 am
Thanks Humberto for the article. I will try it out on "No Disc" DVD deck lying around.
Tinapa Faletiute
October 14, 2013 at 2:29 am
Hi Humberto,
What usually the impedance for a good working motor of a DVD deck?
Rgds
Tinapa Faletiute
October 14, 2013 at 2:35 am
Hello Jestine,
Unfortunately our internet connection from our local ISP is really playing up especially trying to access Yahoo emails. I have a lot of repairing laptops & desktop sharing to upload but can't attach photos over the net (really slow). I will share some of my repairing tips when I have a chance to travel to a more faster reliable internet connection.
My apology for that
With Best Regards
Jestine Yong
October 14, 2013 at 9:29 am
Hi Tinapa,
It's ok no problem.
Jestine
alva
October 14, 2013 at 3:29 am
thankyou for great article.thanks for your help, with the help of all, learn more, go ahead, thanks for the time you spend to publish your articles.
Humberto
October 15, 2013 at 7:06 pm
I do it with pleasure all the time.
litec systems
October 14, 2013 at 5:58 am
Veryy useful!!
Thanks a looooottttt mr. Yong
From lior ,Israel. 🙂
Jestine Yong
October 14, 2013 at 9:29 am
Hi Litec,
You are welcome and special thanks to Humberto too.
Jestine
litec systems
October 14, 2013 at 6:07 am
..and really thanks on the good & very verrry verry good emails&articles it so usefull!
I,m 17.5 years old and thanks to you i repaired many lcd for me&my family&friends and manyy other electronics!! (i'm &my uncles very likes electronics and we very love to repair anything!!
Specific I'm (often just try to..) repair things from 5 years old +++..... Thanks a looooottttt again from lior, Israel.;-)
andrew ramos
October 14, 2013 at 10:53 am
Hello Jestine Yong, I appreciate all your repair newsletters very good information that inspire me to stay focus on electronics which I admire. thank you Jestine
Jestine Yong
October 14, 2013 at 12:09 pm
HI Andrew,
You are welcome!
Jestine
Anand Palkar
October 14, 2013 at 11:24 am
Hi Jestine
Very nice article. I repair the same problem a bit differently as follows...
Normally in such cases the motor is at fault and we find the resistance to be above 100 ohms some times 250 ohms etc.when checked resistance of a new motor it is approximately 10 to 15 ohms. This problem arises due to carbon particles restored on the commutator of the motor. What we do is we remove the motor out of the assembly unit and apply a drop of WD40 or zurick on commutator from the ventilation provided. After few minutes we apply same dc voltage from an external power supply. The applied voltage should be as per the indicated voltage on the motor. The motor rotates for a few seconds and then the polarity of the DC supply is reverse . This is done a couple of times and again check the resistance and continue the process until we get the resistance below 20 ohms. I have done this many times and have been successful every time. This process is extremely cheap and takes a few seconds. If you don't have a power supply any 9V battery can be used.The above problem arises due to carbon settled on commutator of the motor. Replacement helps if you get the same replacement.
Please feel free to contact if you have any questions.
Best Regards
Anand Palkar
Mark Tembo
October 14, 2013 at 9:45 pm
Thanks for the article. However, in this case, was the motor rotating, meaning could it have been rotating at a higher speed than normal or at the slower speed than normal? Or was not rotating at all?
From Anand Palker, it is also good practice to try to repair the same motor as spares of same replacement sometimes become very difficult to find. Do these smaller motors do have brushes as well that also get worn out after some time?
Humberto
October 15, 2013 at 7:16 pm
In this case the started rotating sometimes or trying to rtotate in some other times, and suddenly it stoped, showing the message NO DISK on display.
This little motors have carbon on the commutator of the motor.
petr
October 16, 2013 at 10:02 am
thanks a lot! very interesting I looking long time tried found solution for that . thanks again. Also if anyone know more possible cause or it just motor problem?
reza
October 19, 2013 at 12:24 am
hello Mr Humberto Rodriguez
Very nice article
Jayaprakash
October 22, 2013 at 5:52 pm
thank u sir. Its very interesting
Alex C
November 6, 2013 at 2:03 am
Mr. Rodriguz and Jestine,
Thanks for sharing all your technological knowledge. I studied Power Electronic Engineering and I love to read all your articles and ebooks. I learn new things every time. I want to take a moment and congrats to you and all who share with us your experiences! Cheers!!
Jestine Yong
November 6, 2013 at 10:43 am
HI Alex,
You are welcome.
Jestine
Herby
November 11, 2013 at 6:54 am
Thanks to you Justine Yong for these information that you're provides us for the sake of repairs you are amazing, a great guy like you hard to found
thanks again my regards ...
3c
March 8, 2014 at 5:27 am
great info had that problem a few times didnt know what to do .thanks to u i know now .thanks man