WANTED: ZEISS Comet L3D 2 PARTS

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ZERO Metrology
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Joined: Fri Mar 29, 2024 2:34 pm
Full Name: Edinelson Garcia
Company Details: ZERO METROLOGY
Company Position Title: ZERO METROLOGY
Country: Brazil
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WANTED: ZEISS Comet L3D 2 PARTS

Post by ZERO Metrology »

Hello, how are you? My name is Edi and I'm located in Brazil. For about 10 years,
I've been providing 3D scanning and dimensional analysis services to industries in my region.

I have a ZEISS COMET L3D 2 device that is currently out of service due to an internal communication board error.
Upon disassembly, I identified a burnt microcircuit (IC11). Unfortunately, the identification markings on the microcircuit disappeared during the burn, making it impossible to determine which part it is in order to purchase a replacement.

You can see the image at this link:
https://freeimage.host/i/JwwBQpe
https://freeimage.host/i/JwwBtTu

Therefore, if anyone knows how I can solve this issue or if anyone has parts for a similar device and is willing to sell them,
please contact me at: [email protected].

Thank you very much for reading this message.
Have a great week and happy projects!
Edi - ZERO Metrology BR

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f41th
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Re: WANTED: ZEISS Comet L3D 2 PARTS

Post by f41th »

I've checked with a spare comet l3d 2 5m i have laying around.
Chip is a national semiconductor with "44CDY1U" and "L3434" printed on the package

I've found a datasheet from national semi about an LM3434. Maybe its the same or a similar chip. The Datasheet says:
"The LM3434 is an adaptive constant on-time DC/DC buck
constant current controller designed to drive a high brightness
LEDs (HB LED) at high forward currents. It is a true current
source that provides a constant current with constant ripple
current regardless of the LED forward voltage drop"
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