I need help as i'm new to reverse engineering. I need to identify a diode in a PCB that i'm currently working on. Do you guys have any idea or advise on how to identify the diode. The diode which I need to identify is D1 on the picture below.
Electronics are not really our focus and it's not clear at all what you plan to do with the information but a quick search found this blog post which says:
The smallest discrete diodes are designed to handle about 100 milliamps of current. These devices are typically packaged in tiny glass cylinders with a connecting lead at each end. A stripe on the cylinder marks the diode’s cathode, making the opposite side the anode. With some diodes, you may need a magnifying glass to see the stripe clearly.
IF you need more help with the circuit, I'd suggest asking on https://electronics.stackexchange.com/ where there are many more experts on this topic.