Repairing a Neewer 660 Studio light - How Hard Can It Be? -- Episode 594

I’ve got a studio light which has suddenly become faulty, how hard could it be to fix it rather than replace? In today’s episode I try and fault find the PCB to see if its a fault I can fix.

Watch the Video:

Bill of Material:

Product Name	Manufacturer	Quantity	Buy Kit
8 bit MCU, STM8S003F3P6TR	STMICROELECTRONICS	1	Buy Now
Fixed LDO Voltage Regulator	HOLTEK	1	Buy Now
Pluggable Terminal Block	WAGO	3	Buy Now

Additional Parts:

Fault studio light

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hifromkatie over 2 years ago in reply to RichG +3

I'm quite tempted to go completely away from the original design and do a 555 based controller, the main operation of the micro was to take the potentiometer input and turn it in to a PWM to the LED driver…
RichG over 2 years ago +1

Yes a new project with a microcontroller.

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Fieroluke over 2 years ago

Thanks for the video, I enjoyed it! I‘d upgrade the regulator, replace the micro and write a new firmware. Read two A2Ds and write two PWMs, that‘s a breeze…
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Fieroluke over 2 years ago

Thanks for the video, I enjoyed it! I‘d upgrade the regulator, replace the micro and write a new firmware. Read two A2Ds and write two PWMs, that‘s a breeze…
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hifromkatie over 2 years ago in reply to Fieroluke

That does seem like the simple option, ADC to PWM output with a micro is fairly trivial, also like the above suggestion to add DMX control. Considering setting a design challenge for myself by doing a new circuit without a micro, and using 555 (or similar) instead. Will have to finish the current project and then decide
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beacon_dave over 2 years ago in reply to hifromkatie

Don't forget the likes of sACN, Art-Net, DALI...
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