Hello,
once again an annoying problem... I have a Sony CDP-X229ES that has the problem that after start playing the music the spindlemotor slows down, stops and then nothing works on the player. The functions only work again after the device is switched off and on again. However, reading the CD works perfectly, and start playing the CD works immediately, but then......
I have already cleaned the drive, replaced both motors (spindle and laser unit) and last but not least changed the laser unit. Supply voltages are all present and in value.
To my chagrin, I have to admit that repairing CD players is not one of my top activities. Does anyone have an idea where I can continue, or does anyone even know the error?
Thanks in advance for your effort
once again an annoying problem... I have a Sony CDP-X229ES that has the problem that after start playing the music the spindlemotor slows down, stops and then nothing works on the player. The functions only work again after the device is switched off and on again. However, reading the CD works perfectly, and start playing the CD works immediately, but then......
I have already cleaned the drive, replaced both motors (spindle and laser unit) and last but not least changed the laser unit. Supply voltages are all present and in value.
To my chagrin, I have to admit that repairing CD players is not one of my top activities. Does anyone have an idea where I can continue, or does anyone even know the error?
Thanks in advance for your effort
Hi
I've repaired several Sony CD players, most common fault is bad solderconnections on the main pcb, try to resolder the bad ones, mostly the ic's.
Cheers, Tom.
I've repaired several Sony CD players, most common fault is bad solderconnections on the main pcb, try to resolder the bad ones, mostly the ic's.
Cheers, Tom.
I can't think of anything obvious...... is the sled working correctly? Does it move along as it begins to play? You can monitor the voltage across the sled motor if there is doubt, it should increase slightly and then the sled moves forward and the voltage drops again. So the sled shuffles along.
With any problem like this I would monitor the RF when you begin to play a disc and look for any clues in the run up to it failing such as amplitude falling or tracking or focus being lost.
With any problem like this I would monitor the RF when you begin to play a disc and look for any clues in the run up to it failing such as amplitude falling or tracking or focus being lost.
Hi Mooly,
these are a few useful tips. I wouldn't have started there because I thought he was just playing normally. I can also jump to song 1,2,3,x,x,x,x,x,x directly after reading in the TOC and the music starts and then the spindle motor speed "falls asleep". I thought it was a general engine problem, so I replaced the respective drive motor. But of course, that wasn't it...
I'm currently working on another project, but I'll check it out soon👍
these are a few useful tips. I wouldn't have started there because I thought he was just playing normally. I can also jump to song 1,2,3,x,x,x,x,x,x directly after reading in the TOC and the music starts and then the spindle motor speed "falls asleep". I thought it was a general engine problem, so I replaced the respective drive motor. But of course, that wasn't it...
I'm currently working on another project, but I'll check it out soon👍
Is a device in the spindle motor drive area heating up and maybe going into thermal shutdown?
It sounds an odd problem. The audio should mute as soon as the spindle motor falls out of lock with the servo.
That would be good point to look at. Also make sure the 7 volt rail is constant (Q209 and Q210).
That would be good point to look at. Also make sure the 7 volt rail is constant (Q209 and Q210).
When you say
''....The functions only work again after the device is switched off and on again........''
Do you mean the front panel buttons become unresponsive as well as the Motor slowing?
p.
''....The functions only work again after the device is switched off and on again........''
Do you mean the front panel buttons become unresponsive as well as the Motor slowing?
p.
Hi guys,
sorry for the long pause in correspondence. However, it's been a bit eventful lately that I still haven't gotten back to the device to process your tips.
But I see that you have really good suggestions and I would like to thank you for them. I'll definitely check this out and report back later.
@percival007
Yes, thats exactly what I meant. As soon as the engine no longer runs properly, I can no longer select anything on the control buttons, not even ejecting the CD works. I definitely have to switch off the device and wait a while before I can select a function again.
Thanks again to everyone and see you then
sorry for the long pause in correspondence. However, it's been a bit eventful lately that I still haven't gotten back to the device to process your tips.
But I see that you have really good suggestions and I would like to thank you for them. I'll definitely check this out and report back later.
@percival007
Yes, thats exactly what I meant. As soon as the engine no longer runs properly, I can no longer select anything on the control buttons, not even ejecting the CD works. I definitely have to switch off the device and wait a while before I can select a function again.
Thanks again to everyone and see you then
I think you have to start by monitoring the Power Supplies.
Crystal Oscillator for the Main Micro?
Have you got an oscilloscope?
Crystal Oscillator for the Main Micro?
Have you got an oscilloscope?
I put the CD player aside for now and turned my attention to other work.
A CDP X-33 ES is currently being used as a replacement. But thank you again for the concentrated help of all of our fellow thinkers.
@percival007
I have already checked the voltages and I also have an oscilloscope. But I'll get back to you when I've started working on the device again.
First of all, back to my main field of activity... the beloved amplifiers
See you soon and all the best
A CDP X-33 ES is currently being used as a replacement. But thank you again for the concentrated help of all of our fellow thinkers.
@percival007
I have already checked the voltages and I also have an oscilloscope. But I'll get back to you when I've started working on the device again.
First of all, back to my main field of activity... the beloved amplifiers
See you soon and all the best