Hello all,
I have a Sony CDP 228 ESD with a problem in the CD reader.
Was bought en ebay a month ago and worked well while.Now CD is not recognized.
The loader tray works well, but the disc does not rotate, the laser head moves several times trying to focus, but the disc only rotates a quarter of a turn or less, and it goes like at intervals
I had read about pickup laser KSS151A,check corrient laser.
I have been able to measure the current of the laser while it tries to focus the disk for several seconds,then goes off. Its current is 54.06 mA, (the laser sticker indicates 51.3 mA)
Based on this, the laser appears to be within its life span (less than 10 mA increase)
But the first question that arises in my mind.
Could it be the CD spinning motor or could it be the laser ? How to rule out spining motor or laser head to begin?
Thanks in advance and regards
I have a Sony CDP 228 ESD with a problem in the CD reader.
Was bought en ebay a month ago and worked well while.Now CD is not recognized.
The loader tray works well, but the disc does not rotate, the laser head moves several times trying to focus, but the disc only rotates a quarter of a turn or less, and it goes like at intervals
I had read about pickup laser KSS151A,check corrient laser.
I have been able to measure the current of the laser while it tries to focus the disk for several seconds,then goes off. Its current is 54.06 mA, (the laser sticker indicates 51.3 mA)
Based on this, the laser appears to be within its life span (less than 10 mA increase)
But the first question that arises in my mind.
Could it be the CD spinning motor or could it be the laser ? How to rule out spining motor or laser head to begin?
Thanks in advance and regards
The way all cd player mechanisms work is;
Insert disc
Load disc
Acheive focus
Spin disc.
I would say it cannot focus.
Replace the laser if cleaning with an air duster doesn't work.
NEVER touch the laser power setting unless you have a laser power meter. The current drawn has no correlation on the power output.
Insert disc
Load disc
Acheive focus
Spin disc.
I would say it cannot focus.
Replace the laser if cleaning with an air duster doesn't work.
NEVER touch the laser power setting unless you have a laser power meter. The current drawn has no correlation on the power output.
Hi! Does the laser pickup moves across its rail?
¿Se mueve la unidad láser por el rail, se mueve con facilidad? Salu2
¿Se mueve la unidad láser por el rail, se mueve con facilidad? Salu2
Hello,
Thanks for your help
Yes, the laser pickup slides well on the rails.
I see that when the CD is loaded, the laser optics try to find focus
with very fast vertical movements (much faster than when no disc is inserted), but I suppose it will not be able to detect the disc because the rotation motor does not rotate or it makes a small attempt and stops.
I will try to disassemble the plastic cover and clean the
optica well. Because I assume that the laser is fine, based on its current consumption.
Best regards
Thanks for your help
Yes, the laser pickup slides well on the rails.
I see that when the CD is loaded, the laser optics try to find focus
with very fast vertical movements (much faster than when no disc is inserted), but I suppose it will not be able to detect the disc because the rotation motor does not rotate or it makes a small attempt and stops.
I will try to disassemble the plastic cover and clean the
optica well. Because I assume that the laser is fine, based on its current consumption.
Best regards