Hi
I have a Cambridge Audio CD4SE CD Player that has two dead LED bulbs on the display backlight and I was wondering if anyone knows if they can be replaced and if so which bulbs should I use?
I would appreciate any help.
Thank you.
I have found that LED failure is usually caused by lead stress near the package. III-V semiconductors are not inert in air like silicon is, so bending the lead breaks the hermetic seal and the chip dies
Bending it without holding the last couple of mm in a pair of needle nose pliers might not be the best idea. But it's no guarantee of failure. Lifespan and parts quality is the buggy.
I did that in an old QUAD 66. I replaced the bulbs with orange leds to great effect, making sure the voltage drop was enough so that brightness was correct.
Hi thanks kindly for your reply I will get some photo's for you to see as soon as I can. The display on the CD4se Has 3 bulbs and only one is currently working.
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