Introduction
The above CD player did not rotate the CD though FM radio worked as did DAB radio (after a factory reset with the on and stop button pressed together).
Many smart phone cameras detect invisible infrared (IR) from the laser but no IR was seen on this unit, so the laser was replaced (£8 AliExpress) and now works.
What you need
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Shows general view of CD player which is about 17 years old. To take the cover off remove remove about 9 black screws. Remove another 2 black screws on the bottom front to unclip the front cover. This exposes 2 sunken copper coloured screws in the front face which, when removed, allow the front end to detach.
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Image shows the internal circuit boards with the front laid to one side (mostly off-screen at bottom). Remove ribbon cable and constraining cable holds if necessary.
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The CD assembly has been removed by undoing 4 recessed copper coloured screws in each corner (red arrows show locations). Detach the CD cables from the 2 connectors (green arrows) and ribbon cable (undo the lock first, blue arrow). Note: the CD assembly is also glued to the base, so needs levering off.
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Image show base of CD assembly, Undo 4 screws and springs to remove laser sub assembly (blue arrows, 2 already removed). Pull out ribbon cable from connector (pink arrow- no lock here).
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Pull off the white plastic cog (blue arrow) by pinching the clip on the other side. (You can miss this step but it makes removing the laser sub assembly easier).
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Slightly bend the white plastic arm (red arrow) so that the round metal rod can be pulled out. Then the laser sub assembly (KSS-213CL) can be removed and replaced with new (£8 AliExpress or other online retailers). If you don't have any lubricant, you can take a bit from the old unit.
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Image shows the base of the removed laser sub assembly. The pink arrow shows the location where there was originally a ball of solder, shorting out the laser to protect it from static electricity. This must be removed for it to work.
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The solder ball can be removed with a soldering iron and copper braid to wick up the solder.
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The supplier of the new laser recommends removing the soldering iron from the mains before de-soldering,to protect against static (?).
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The supplier also recommended the use of earth straps, when handling. Being a damp (70%RH) UK winter, I don't normally worry about static, but did earth myself by touching a radiator out of an abundance of caution.
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The laser was replaced and the CD player now detects the presence of a CD and spins up the CD and reads the tracks satisfactorily.
