Dear members,
I have a Yamaha CD-1 player from the past. This thing is very complicated. When i load a disk it loads it but the disk does not start spinning. There is no laser light visible from the laser and no tracking movement from the laser head.
All power supply voltages are present. Also the sub power supply's on the servo board and the logic board.
The little board with a optical device does see the disk spinning (by hand) and there is some pulsing from the out connector.
Can anyone help me get started with troubleshooting. Is there a known issue with there players? for example the cabling or the connectors? I already did a visual inspection on the boards and solderd some bad junctions.
Any help is much appreciated.
I have a Yamaha CD-1 player from the past. This thing is very complicated. When i load a disk it loads it but the disk does not start spinning. There is no laser light visible from the laser and no tracking movement from the laser head.
All power supply voltages are present. Also the sub power supply's on the servo board and the logic board.
The little board with a optical device does see the disk spinning (by hand) and there is some pulsing from the out connector.
Can anyone help me get started with troubleshooting. Is there a known issue with there players? for example the cabling or the connectors? I already did a visual inspection on the boards and solderd some bad junctions.
Any help is much appreciated.
I worked on many of these as a Yamaha Agent.
What happens when you insert a disc is as follows;
Drawer closes and the laser assembly returns to the centre of the disk. The laser then lights, the disk spins up and Focus is attempted.
In your player, move the laser assembly towards the outer of the disk then insert a disk.
Does it attempt any of the above?
What happens when you insert a disc is as follows;
Drawer closes and the laser assembly returns to the centre of the disk. The laser then lights, the disk spins up and Focus is attempted.
In your player, move the laser assembly towards the outer of the disk then insert a disk.
Does it attempt any of the above?
Here is the manual, from 1992!
YAMAHA GT-CD1 Service Manual download, schematics, eeprom, repair info for electronics experts
YAMAHA GT-CD1 Service Manual download, schematics, eeprom, repair info for electronics experts
Thank you for the response Jon. I see you are in the same business as me. When the drawer closes the head if moving to the center of the disk. That part is working. After that nothing. This CD player is different from the service manual link you mentioned. This is the older first one from yamaha, the CD-1 with the drawer on the left side.
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