Question about GPX C984 Boombox

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CD player not working

When the CD player is selected the display shows two dashes and will not read any CD. The platter is still turning when the top is opened with a CD inserted. Both the radio and tape functions work properly. The display shows OP when open and the two dashes with or without a CD in place. Any ideas?

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  • Anonymous Jan 05, 2008

    I lost the manual & I forgot the procedure how to make the CD player work

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  • 19 Answers

Insert Lens cleaning Disk, after cleaning the disk If the CD is reading change the lens.

Posted on Nov 10, 2006

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Posted on Jan 02, 2017

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Peugeot 406 cd player


Not old age, but heat. something behind the dash is creating heat, which is why things go dark over time and why it works aftt

Nov 16, 2017 | Audio Players & Recorders

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Dropped laptop-IBM Thinkpad X21-display now reads "A disc read error occured" "Press ctrl-alt-del to restart" Bios is accessible but I am a novice in that area.


I don't think going into the BIOS Setup utility is going to help.
Reasoning?

If the laptop was on when dropped, one or more of the Read/Write heads probably crashed right into the Platter/s.

To expound:

Inside the Harddrive case are Platters. These resemble CD disks, but are made of metal, or glass.
On the top, and bottom of the Platters a magnetic media is applied. Usually a Ferrite compound. (Read Iron)
There may be 3 to 6 Platters.

EACH Platter has a Read/Write head Above it, and Below it.
The Read/Write head does just what the name applies. Reads from the Platter, and Writes to the Platter.

[The magnetic media is arranged around the Platter, very similar to how information is arranged around on a CD, or DVD disk.
It is arranged in Circles, (Tracks), and segments within the Circle (Sectors)

The magnetic media is arranged by the Read/Write head, (Write portion actually), into a series of 1's, and 0's.
1 being ON, 0 being OFF.
The 0's and 1's are converted into machine language for the computer ]

The Read/Write heads are moved back, and forth across the Platters by an Actuator Arm.
When the computer is in use, (Computer using a program for example), the Read/Write heads can move back, and forth across the Platters at Hundreds of times a Second.


The Read/Write heads are in a stationary position away from the Platters, when the computer is not on.
When the computer is on, the Read/Write heads are positioned above, and below the Platters.
They are positioned VERY close to the Platters.

(So close, that that the movement when using the computer, actually has the Read/Write heads floating on a cushion of air)

Computer on, and dropping it can cause one, or more Read/Write heads to actually crash into the Platters, and wipe some of the magnetic media OFF.

This would mean replacing the Harddrive, AND having the Restoration Disk, (CD. Also may be known as System Restore disk, or Restore Disk)

No Restoration Disk means buying a new, fresh, genuine copy of Windows, and installing it, on the new Harddrive.

On the Platters in one of the sectors, is the Boot Sector for your Windows operating system.
It could be that when the Read/Write head/s crashed on the Platter/s, that part of the Boot Sector was wiped.

It could be by a slight chance that the Harddrive has come loose. Pulled away from the interface in the laptop that it is plugged into. THAT would be a stroke of luck, but advise do not get your hopes up.

1) http://computer.howstuffworks.com/hard-disk.htm

2) IBM ThinkPad X21 Service Manual (Free)

http://www.tim.id.au/blog/tims-laptop-service-manuals/#toc-ibmlenovo

Click on X20. This manual covers the X20, X21, X22, X23, and X24 models.

This is a PDF file. Allow a few seconds for the first page to come up, and additional time for the file to fully download. Let the file download all the way before looking through it.
There is a way to save a copy to your computer you are using now, and burn it off to CD disk, if you wish.
If you do not know how, please post in a Comment, and I will tell you.

Page 65
1040 - Hard disk drive

Oct 24, 2010 | IBM ThinkPad X21 2662 Notebook

1 Answer

I have a NAD CD player C 521BEE which up until recently has worked perfectly. I now have the problem that it won't recognise/read the CDs, and therefore makes it unusable. On occasion it works fine, but 9...


If your cd player gets older there can be a timing problem by several causes like a slipping belt, or a dirty mode select switch somewhere or a microswitch that is not functional by the slipping belt too long time to take the cd to inside and push up the platter and mechanic to give the focussing of the laser to read the table of contents on the cd , that the cause in 90% microswitch cleaning by contact spray under the tray and on the beginning point wheren the laser begins its start cycle to focussing and give a turning respond to the spindle motor thereis a little microswitch it pushed in or an other switchable point also under or near the cd tray another where the detection is the start that the cd tray is closed and the laser start to focussing on the cd surface and give the cd a turn for the toc and then when its timed correct it recognized and displayed the track position highest priority is that rubber belt that driven the tray and the 2 or 3 microswitches or contacts you should find what have functions in the intake traject. in a short time all together. little suggestion whats meaning Denon DCD815 CD Player disk tray wont open or copy this link
https://www.youtube.com/watch?v=H9AbnvF1www

Jul 21, 2017 | NAD Audio Players & Recorders

2 Answers

My HP Pavilion dv4 laptop has a humming noise


There are three components in this laptop that move. (Spin)
1.Cooling Fan
2.Harddrive
3.CD/DVD drive

A.It isn't the harddrive making the noise.

Inside the harddrive case are Platters. Platters resemble a CD disk, and are made of metal.
Typically there are 3 to 6 Platters inside.

For Each Platter there is a Read/Write Head, on the top surface of the Platter, and on the bottom surface of the Platter.

The Read/Write Head is connected to an arm. This arm moves the Read/Write Head across the Platter, and back to the home position. (Action resembles that of a phonograph player, with a record on it)

The Read/Write Head is located at the park position, (Away from the outside edge of the Platter), when the power is off to the computer. (Desktop or Laptop)

When the harddrive is in use, the Read/Write Head is approximately 1/2 thousandths of an inch above the Platter surface. (.0005 A typical human hair is 3 thousandths thick, or .003 Therefore the Read/Write Head is 6 times closer than the thickness of a human hair)

If your laptop is operating okay, the harddrive is unhurt.

[More detailed info with illustrations, in case there is an interest,

http://computer.howstuffworks.com/hard-disk.htm ]

B.It isn't the CD/DVD drive because the extraneous noise happens all the time.

C.It's the Cooling Fan

The Cooling Fan is located on the bottom side of the laptop.
It's a small fan with tiny bearings, and can easily be damaged.

The fan blades could be hitting the fan shroud of the housing. (Shroud - Outside cage that surrounds the fan)
It is also mounted in a plastic housing that is rounded in shape, and has three protrusions that come out from the housing for mounting.
(Mounting to the motherboard)

These protrusions resemble 'Ears'.
One, or more of the Ears could have broken off.
The fan blades could be hitting the Base Enclosure. (Plastic bottom housing of laptop body)

This link is to HP Support, and the download page for the Maintenance and Service Guide, for the HP Pavilion dv4000 Series Notebook PC's.

http://h10025.www1.hp.com/ewfrf/wc/manualCategory?lc=en&dlc=en&cc=us&lang=en&product=468789&

[On this page Left-click on - HP Pavilion dv4000 Notebook PC and Compaq Presario v4000 Notebook PC - Maintenance and Service Guide

After you click on the link you may not see anything happening for up to 30 seconds. This PDF file is downloading in the background.
Advise do not start looking through it until it has fully downloaded.
You may break the download connection if you do ]

This will show you the Cooling System, and more specifically the Cooling Fan, and housing.

Page 177 starts with replacing the Fan Assembly.

The entire laptop has to be disassembled, except for the display to access the Cooling Fan assembly.
(Top cover is the Display Enclosure. The LCD screen fits in the Display Enclosure, and is mounted with a metal frame)


Dec 15, 2009 | HP Pavilion dv4000 Notebook

2 Answers

Harmon Kardon FL8450 CD turntable won't turn...


check your belt on drive, it might be broken.

Mar 20, 2009 | Sony CDP-CX300 CD Player

1 Answer

Problems with platter not moveing


Sounds like a sensor or drive moter fault,if you havent had it fixed then u can send it to us.

Regards.

http://www.audiovisualservices.info/

Dec 05, 2008 | Nu Mark Numark Cdx Table Top CD Player CD...

1 Answer

Numark cdx


have you checked the brake and start up settings they are the dials by the start and stop buttons it it is turned too far the platter will start up slow, you just trun to dial till you get the right start up speed you want

Jul 25, 2008 | Nu Mark Numark Cdx Table Top CD Player CD...

3 Answers

Getting errors reading the first (data) track on mixed-mode CD, what can i do? get error message "TABLE ERROR"


The CD Player platter does not spin or displays Table Error.
Follow this procedure when the platter of a CD Changer does not spin or displays Table Error.
  1. Open the door to the unit.
  2. Press the center button in the Jog Dial, and attempt to remove all the CD's in the unit. NOTES:
    • Verify that all the discs that were installed in the unit are removed. If all the discs do not come out, the unit will need service.
    • If the player is not operating correctly, reinstalling CDs may damage the CDs.

  3. Attempt to rotate the platter with all discs removed. If the platter rotates, install a few discs to verify operation.
  4. If the platter does not spin when the unit is empty, service will be required.
Also are you getting any other specific error codes, if so, please let me know what they are.

Please get back to me and let me know any other specifics.
Please don't forget to rate this. Thank you!

Mar 27, 2008 | Sony MegaStorage CDP-CX333ES 300-Disc CD...

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