I have a problem with this machine:
When loading a disc from tray, a moter noise is on for a few seconds and then the tray opens again...
It seems that the laser unit do not clamp onto the disc...the tray is opened before this I guess?
Anybody with a input for solution? 🙂
When loading a disc from tray, a moter noise is on for a few seconds and then the tray opens again...
It seems that the laser unit do not clamp onto the disc...the tray is opened before this I guess?
Anybody with a input for solution? 🙂
Loading problem
I have now looked closer to the problem, and I no longer think that the belt (driving the tray). The reason is that the tray is moving fine and quick in both directions. Also, you are not able to "help" it further in with your hand.
When looking closer at the loading I saw that the laser part didn't swing up. It moves upwards, but not enougt.
Removing the disc enables you to "help" the swing up with a gentle finger and then it is in position. I dont think it is a motor swinging the laser up?
Puting the disc in again a light pump on the buttom plate is enough to engage the laser to load and everything works fine....
😕
I have now looked closer to the problem, and I no longer think that the belt (driving the tray). The reason is that the tray is moving fine and quick in both directions. Also, you are not able to "help" it further in with your hand.
When looking closer at the loading I saw that the laser part didn't swing up. It moves upwards, but not enougt.
Removing the disc enables you to "help" the swing up with a gentle finger and then it is in position. I dont think it is a motor swinging the laser up?
Puting the disc in again a light pump on the buttom plate is enough to engage the laser to load and everything works fine....
😕
Hi Skorpio,
It still really sounds like a belt problem to me. Can you see how the pickup sub chassis is driven. Can you hear the motor run after the drawer has closed, but it's not doing anything ?
It can't be much 🙂
When you open the tray is there much "power" to it. If you gently try and stop the tray as it comes out does it push against your finger or does the belt slip ?
Edit -- It can only be
1. The motor continues to run but doesn't raise the mech due to a slipping belt.
2. The motor stops as soon as the tray closes due to a problem such as a microswitch etc.
3. Does it use gears to lift the mech -- stripped teeth maybe.
4. It uses another motor/belt for the mech lift ?
It still really sounds like a belt problem to me. Can you see how the pickup sub chassis is driven. Can you hear the motor run after the drawer has closed, but it's not doing anything ?
It can't be much 🙂
When you open the tray is there much "power" to it. If you gently try and stop the tray as it comes out does it push against your finger or does the belt slip ?
Edit -- It can only be
1. The motor continues to run but doesn't raise the mech due to a slipping belt.
2. The motor stops as soon as the tray closes due to a problem such as a microswitch etc.
3. Does it use gears to lift the mech -- stripped teeth maybe.
4. It uses another motor/belt for the mech lift ?
Mooly said:
Thank for helping....
4. I have lifted the complete assembly up and it seems the is a 3 motor possibly driving the laserpart?
The tray moves nicely in and out....the laser do not clamp up to meet disc, only half way...you hear a motor running. A finger can help the last bit and everything works nice. When taking disk out, no help needed.
I am woried about taking drive more apart as I read a thread where a guy warned about that with Sony drives because of alignment of mechanics?
🙂
There also might be some gears to lift laserpart, under the transport is a "black box" with a srew. Turning this screw moved the laser part up and down....like the motor perhaps shoud do?
Hi Skorpio,
Would have to see it really. I think you are going to have to pull it apart a bit more. You could post come pictures - not saying it would help but you never know.
Can you find the service manual anywhere ?
Would have to see it really. I think you are going to have to pull it apart a bit more. You could post come pictures - not saying it would help but you never know.
Can you find the service manual anywhere ?
http://www.disconetto.dk/shop/laser-udskiftnings-enhed-14351p.html
http://images.google.com/imgres?img...&prev=/images?q=Sony+KSS+213C&um=1&hl=da&sa=N
This should show laser unit assembly.....I am trying to get service manual at Rotel Support....
http://images.google.com/imgres?img...&prev=/images?q=Sony+KSS+213C&um=1&hl=da&sa=N
This should show laser unit assembly.....I am trying to get service manual at Rotel Support....
Hi,
Seen the pictures, thats just the sled motor for the pickup. Is there another motor in the tray and drawer assembly ?
Why not post a new thread asking if anyone has a manual, you never know.
Seen the pictures, thats just the sled motor for the pickup. Is there another motor in the tray and drawer assembly ?
Why not post a new thread asking if anyone has a manual, you never know.
I have exactly the same problem with this RCD971, can you tell me your solution on this? Replacing the belt or..??
Rob.
Rob.
OK, I did replace the belt and it is working back normal again. Also replace the OPA2604 to LME49720 in the outputstage. Sound is more detailed, nice!
Rob.
Rob.
Hi guys, my deck is close to 10 years now, and its now developed the same problem you've described.
I've change the tray belt once before, a compatible belt and approximate tension.
I've a hunch the fault lies with the tray motor pulley and its likely become worn (too smooth?) to some degree and the belt grip is again to some degree not optimum. This may result in insufficient torque to drive the gear to lift the optical head fully up position for play. I've tried just about everything possible, right down to cleaning every part, gear, another new belt, the whole process as careful and detailed within my capability.
Yet, it works most of them time and does misbehave once a while.
I'm now looking into the possibility of replacing that motor pulley with something I could find from old CDROM drives, but I've not got down to doing it. If I do find that part, I'm hoping it'll not misbehave ever again as I loath pulling apart the CDP for repeated repairs or diagnosis. Be forewarned that frequent removal and refitting the optical head ribbon cable can cause untold problems. These ribbon cables were not designed to be pulled out and refitted a few hundred times.
This Sony loader isn't the best nor made to last forever. Its just a class better than an ordinary CDROM drive loader. I do have the service manual and there's nothing about servicing the loader assembly. There's severe lack of infomation on loader repair proceedures other than an exploded view diagram. I've looked into other brand service manuals that use these loader such as NAD, Marantz and its the same story, no useable info.
I've change the tray belt once before, a compatible belt and approximate tension.
I've a hunch the fault lies with the tray motor pulley and its likely become worn (too smooth?) to some degree and the belt grip is again to some degree not optimum. This may result in insufficient torque to drive the gear to lift the optical head fully up position for play. I've tried just about everything possible, right down to cleaning every part, gear, another new belt, the whole process as careful and detailed within my capability.
Yet, it works most of them time and does misbehave once a while.
I'm now looking into the possibility of replacing that motor pulley with something I could find from old CDROM drives, but I've not got down to doing it. If I do find that part, I'm hoping it'll not misbehave ever again as I loath pulling apart the CDP for repeated repairs or diagnosis. Be forewarned that frequent removal and refitting the optical head ribbon cable can cause untold problems. These ribbon cables were not designed to be pulled out and refitted a few hundred times.
This Sony loader isn't the best nor made to last forever. Its just a class better than an ordinary CDROM drive loader. I do have the service manual and there's nothing about servicing the loader assembly. There's severe lack of infomation on loader repair proceedures other than an exploded view diagram. I've looked into other brand service manuals that use these loader such as NAD, Marantz and its the same story, no useable info.
Last edited:
- Status
- Not open for further replies.