Leng Ji read discs no problem, put it after about an hour or more reading card, sometimes hopping, and sometimes cannot read disc.kMBservice manual download site
CD drive repair process:kMBservice manual download site
The high-end models of the machines listed for more than 10 years ago, now used the market price between 3,000 to 3,500. Check the laser head for Sony KSS-210, machines now on the laser head is the Lord himself to replace the removed parts, so I replaced with a new original laser lens, try discover card disc improvedkMBservice manual download site
kMBservice manual download site
But the correction was poor, it seems that this failure is not just like any other machine's laser head problem, in real audio repair work, this is a relatively rare phenomenon. Measure each working point voltage are normal. Using oscilloscope to measure RF mesh waveforms and amplitudes of about 1 volt, not deficiency, slight jitter waveform. This type of machine designs are more mature, very stable,kMBservice manual download site
kMBservice manual download site
Normally does not have a circuit problem, then rack failure, remove the motor resistance movement after checking the advance and retreat of more than more than 100 euro, the spindle motor is 15 euro, use the pointer to table 1 EU motor, retreat doesn't work, the spindle can turn, try to take the two apart after the repair process, the resistance back to 12 euros, commissioning no longer dish card.kMBservice manual download site