LED Rice Light Repaired
My wife gave me some non-working LED rice light which are used occasionally on some festivals. it was lying since long time & it handed over to me with final ultimatum either get it repair or scrap it.
How can I scrap 100 LEDs ? I took them on my work bench for testing & Connected on my series bulb Board, there is no sign of Light.
So first of all I inspected the wires & Leds for discoloration or broken, everything seems Ok. Next, opened plastic box to see inside.
Found inside Circuit traces burnt, I did not work on this type of unit so far so don’t know what components are used.
So I opened another unit of rice light. On another circuit I found only one component.
Checked another circuit part under the microscope it is Bridge Diode part no. MB10F
Checked Diode using Multimeter it shows full short which causes burnt traces.
Checked another Diode Circuit, Diode found Ok so decided to replace this circuit & check, so replaced circuit & powered the light.
& light beautifully light up.
Note: Always use Series Light Test board for testing any type of power supplies.
This article was prepared for you by Yogesh Panchal who works as a Computer Hardware Engineer in Mumbai India.
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Note: You can check his previous repair articles on LED Batten Repaired For No Light
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Parasuraman S
September 2, 2023 at 9:33 am
The wife is a chief commander and inspiration for technicians like us and any chance to appease her should not be wasted! (LOL) Well done, dear!
Albert van Bemmelen
September 2, 2023 at 2:16 pm
You took the best smart choice by not testing each and every single led but dived straight into the power source and found the culprit! Good job!
Yogesh Panchal
September 4, 2023 at 3:21 pm
Thanks! Albert
Yogesh Panchal
September 2, 2023 at 2:17 pm
Yes sir, In fact we can not denies her Command. ha ha ha ha .....
Waleed Rishmawi
September 2, 2023 at 5:24 pm
I wonder why these LED's are called Rice LED's? any way I am glad you listened to the wife other widr we would have problems...LOL. I am glad it worked out because If I get these in the shop I would throw them away and never bother with it but if my wife tells me to get them fixed, I get them fixed. LOL. have a blessed day
Yogesh Panchal
September 4, 2023 at 3:33 pm
Rice LED, like Drum Stick (referred to as a bean vegetable)customer always confused whether to eat or play....i am sure no one take risk to through it when ordered to repair..Ha ha ha
Imoudu.O
September 4, 2023 at 5:08 am
I guess your third hand device is diy,I have being trying to make one, but I never did, maybe it's time to make one seing yours. My daughter will just drop any faulty home appliance on my working table without information, assuming when daddy sees it he knows what it means, while my wife will always call my attention to the damage appliance.Will daughter is still on training ground I guess.Thanks for sharing and have a nice day.
Yogesh Panchal
September 4, 2023 at 3:41 pm
Imoudu.o
Yes I make jigs for my comfort.. this was made using piece of woods A long Nut bolt & Cap of Colgate tooth paste & it is very helpful while Testing the PCB & Dssoldering the parts.