Question about Technics SL-PG480A CD Player
I know it's late but i happen to have received the same unit for free, and it had the same problem. The reason for the message is that the laser weakens over time and cannot reach the CD anymore. If you try holding a disc directly above the lens, to the back of the spindle, you will see the motor starting to spin. That means the laser is still working but too weak to reach to the height of the spindle. The solution is simple. Take the drive unit out and remove the three screws on the board at the back of the drive. Carefully lift that board, there is a flex cable connected to it you don't want to break. You will see a little variable resistor with three pins. Measure the single pin against both of the other two. One should read 3.something kOhms, the other 1.something. Mine read 1.35. Using a small screwdriver turn the resistor to the right until the side that read 1.35 reads something around 700 ohms. I left mine at 740 and it works fine. Put the drive back together and load a disc. It should now work again. Don't set it any lower than 400 or you will damage the laser. If it doesn't work with 800-400, the laser is probably damaged and the drive needs to be replaced entirely, which is not worth it.
Posted on Jun 14, 2009
A slight addendum to the above solution:
The variable transistor in my cd player (SL-PG580A) was labeled with S and E, instead of Ohms.
Imagine the variable transistor is the face of a clock. S is the 1 o'clock, and E is 5 o'clock. My transistor was set at E or 5 o'clock, and I turned it to 6 o'clock.
After that I could play cds again. Hooray!
Posted on Oct 07, 2009
Don't dismiss the spindle motor being faulty as this is very common on these philips drive units. laser failure is also common on these but i've found that 80% of cd players i've repaired with this drive unit e.g. marantz, philips, cyrus, technics etc has had spindle motor failure. take the lid off and insert a disc, if it doesn't spin but you can hear the laser trying to read, then it's most definately the spindle motor.
Posted on Dec 20, 2009
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