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Current version by: Sam Goldheart ,

Title:

discJVC TH-A25 DVD DIGITAL THEATER SYSTEM disc tray doesn't open
discJVC TH-A25 DVD DIGITAL THEATER SYSTEM disc tray doesn't open

Text:

Hello,
 
 
 
my DVD-player does not open the tray anymore.
 
 
 
-when i push the open button, the screen shows the open command. (so it is not the security lock for children).
 
 
 
I think the problem might be the belt around the tray motor.
 
 
 
- I opened the casing and accessed DVD mechanism.
 
 
 
But now I don't find how to get to the motor. It is as if the tray is locked (something between a gear?) and inhibiting me from accessing the motor.
 
 
 
I looked for a solution in the manual, but i does not give the necessary information.
 
 
 
''http://www.manualslib.com/manual/743092/Jvc-Th-A25.html?page=8#manual''
 
 
 
Any ideas?
 
 
 
I will add a picture next hour..
 
UPDATE:
 

UPDATE:

I
I got to the motor out. the motor is working as it should, I put 5V and -5V on it, and in both directions.

UPDATE:

I
I got to the motor out. the motor is working as it should, I put 5V and -5V on it, and in both directions.
 
The problem is, that it does not get any voltage when the tray should open.
 
Is this a problem with an electronic component?
 
 
 
'''UPDATE 2:'''
 
No one an idea how to find the reason why the motor doesn't get -5V when it should open?
 
 
 
If not I thought maybe I can 'solve' the problem by adding an additional button that puts -5V on the motor on conditions (button pushed AND not already open)
 
So, easy circuit with button and the opened/closed sensor in series.
 
Then my question becomes: Where do I find 5V?
 
I suppose there is a voltage regulator in the dvd player, any ideas how to locate it easily?

Device:

JVC TH-A25 DVD DIGITAL THEATER SYSTEMHome Stereo and Theater
JVC TH-A25 DVD DIGITAL THEATER SYSTEMHome Stereo and Theater

Status:

open

Edit by: John Top ,

Title:

disc tray doesn't open

Text:

Hello,
 
 
 
my DVD-player does not open the tray anymore.
 
 
 
-when i push the open button, the screen shows the open command. (so it is not the security lock for children).
 
 
 
I think the problem might be the belt around the tray motor.
 
 
 
- I opened the casing and accessed DVD mechanism.
 
 
 
But now I don't find how to get to the motor. It is as if the tray is locked (something between a gear?) and inhibiting me from accessing the motor.
 
 
 
I looked for a solution in the manual, but i does not give the necessary information.
 
 
 
''http://www.manualslib.com/manual/743092/Jvc-Th-A25.html?page=8#manual''
 
 
 
Any ideas?
 
 
 
I will add a picture next hour..
 
 
 
UPDATE:
 
I got to the motor out. the motor is working as it should, I put 5V and -5V on it, and in both directions.
 
The problem is, that it does not get any voltage when the tray should open.
 
Is this a problem with an electronic component?
 
 
 
'''UPDATE 2:'''
 
No one an idea how to find the reason why the motor doesn't get -5V when it should open?
 
 
 
If not I thought maybe I can 'solve' the problem by adding an additional button that puts -5V on the motor on conditions (button pushed AND not already open)
 
So, easy circuit with button and the opened/closed sensor in series.
 
Then my question becomes: Where do I find 5V?
 
I suppose there is a voltage regulator in the dvd player, any ideas how to locate it easily?

Device:

JVC TH-A25 DVD DIGITAL THEATER SYSTEM

Status:

open

Edit by: John Top ,

Title:

disc tray doesn't open

Text:

Hello,
 
my DVD-player does not open the tray anymore.
 
-when i push the open button, the screen shows the open command. (so it is not the security lock for children).
 
I think the problem might be the belt around the tray motor.
 
- I opened the casing and accessed DVD mechanism.
 
But now I don't find how to get to the motor. It is as if the tray is locked (something between a gear?) and inhibiting me from accessing the motor.
 
I looked for a solution in the manual, but i does not give the necessary information.
 
''http://www.manualslib.com/manual/743092/Jvc-Th-A25.html?page=8#manual''
 
Any ideas?
 
I will add a picture next hour..
 
UPDATE:
I got to the motor out. the motor is working as it should, I put 5V and -5V on it, and in both directions.
The problem is, that it does not get any voltage when the tray should open.
Is this a problem with an electronic component?
 
'''UPDATE 2:'''
No one an idea how to find the reason why the motor doesn't get -5V when it should open?
 
If not I thought maybe I can 'solve' the problem by adding an additional button that puts -5V on the motor on conditions (button pushed AND not already open)
So, easy circuit with button and the opened/closed sensor in series.
Then my question becomes: Where do I find 5V?
I suppose there is a voltage regulator in the dvd player, any ideas how to locate it easily?

Device:

JVC TH-A25 DVD DIGITAL THEATER SYSTEM

Status:

open

Original post by: John Top ,

Title:

disc tray doesn't open

Text:

Hello,

my DVD-player does not open the tray anymore.

-when i push the open button, the screen shows the open command. (so it is not the security lock for children).

I think the problem might be the belt around the tray motor.

- I opened the casing and accessed DVD mechanism.

But now  I don't find how to get to the motor. It is as if the tray is locked (something between a gear?) and inhibiting me from accessing the motor.

I looked for a solution in the manual, but i does not give the necessary information.

''http://www.manualslib.com/manual/743092/Jvc-Th-A25.html?page=8#manual''

Any ideas?

I will add a picture next hour..

Device:

JVC TH-A25 DVD DIGITAL THEATER SYSTEM

Status:

open