<html><head><style>body{font-family:Helvetica,Arial;font-size:13px}</style></head><body style="word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space;"><div id="bloop_customfont" style="font-family:Helvetica,Arial;font-size:13px; color: rgba(0,0,0,1.0); margin: 0px; line-height: auto;">Hi Hackspace List,</div><div id="bloop_customfont" style="font-family:Helvetica,Arial;font-size:13px; color: rgba(0,0,0,1.0); margin: 0px; line-height: auto;">I have a ‘Discovery Channel’ globe nightlight that was bought years ago.</div><div id="bloop_customfont" style="font-family:Helvetica,Arial;font-size:13px; color: rgba(0,0,0,1.0); margin: 0px; line-height: auto;"><br></div><div id="bloop_customfont" style="font-family:Helvetica,Arial;font-size:13px; color: rgba(0,0,0,1.0); margin: 0px; line-height: auto;">It rotates through a range of coloured light that illuminates from inside the globe. It’s now only showing RED light which is not ideal for my Son’s nightlight.</div><div id="bloop_customfont" style="font-family:Helvetica,Arial;font-size:13px; color: rgba(0,0,0,1.0); margin: 0px; line-height: auto;"><br></div><div id="bloop_customfont" style="font-family:Helvetica,Arial;font-size:13px; color: rgba(0,0,0,1.0); margin: 0px; line-height: auto;">I’ve opened it up and the problem appears to be the green(?) and blue LEDs are failing. Some slight illumination from a couple of the non-red LEDs as it cycles through the colours and strong illumination from the reds. </div><div id="bloop_customfont" style="font-family:Helvetica,Arial;font-size:13px; color: rgba(0,0,0,1.0); margin: 0px; line-height: auto;"><br></div><div id="bloop_customfont" style="font-family:Helvetica,Arial;font-size:13px; color: rgba(0,0,0,1.0); margin: 0px; line-height: auto;">I’ve included some images of the PCB with the LEDs on it. I’d like to remove the current non-red LEDs and replace with new ones to see if this fixes it….but…..</div><ul><li>How do I know which side to solder in the long leg of the LED to the PCB? There are markings on the PCB where the LEDs solder in.</li><li>Should I also replace the red LEDs at the same time?</li></ul><div id="bloop_customfont" style="margin: 0px;"><div id="bloop_customfont" style="margin: 0px;">How plausible is it that the non-red LEDs are failing at the same time due to the LEDs themselves failing? I could go through and replace the LEDs and find no benefit as something else is amiss.</div><div id="bloop_customfont" style="margin: 0px;"><br></div><div id="bloop_customfont" style="margin: 0px;">How else might I troubleshoot this problem and what else could it be?</div><div id="bloop_customfont" style="margin: 0px;"><br></div><div id="bloop_customfont" style="margin: 0px;">All help gratefully received,</div><div id="bloop_customfont" style="margin: 0px;"><br></div><div id="bloop_customfont" style="margin: 0px;">Thanks,</div><div id="bloop_customfont" style="margin: 0px;"><br></div><div id="bloop_customfont" style="margin: 0px;">Richard</div><div style="color: rgb(0, 0, 0); font-family: Helvetica, Arial; font-size: 13px;"><br></div></div><br><div id="bloop_sign_1504448570788453120" class="bloop_sign"><img src="cid:9FC34614-3545-44AC-994D-D37C4E154837"><img src="cid:820DEC19-550E-4EF8-ACD9-8F67EA95455D" style="transform: rotate(90deg);"><img src="cid:8CC47633-255A-4D7A-B3C3-9FBD40F52CBE" style="transform: rotate(-90deg);"></div></body></html>