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Author Topic: Unknown componenti, help identifying  (Read 1179 times)

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Offline NiaDebesisTopic starter

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Unknown componenti, help identifying
« on: March 19, 2023, 09:25:36 am »
Hi,

I am repairing an old switching PSU and I found an unknown component, can you help me identifing it?
Any help will be appreciated.

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Offline NiaDebesisTopic starter

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Re: Unknown componenti, help identifying
« Reply #1 on: March 19, 2023, 09:57:29 am »
other photos
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Online wraper

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Re: Unknown componenti, help identifying
« Reply #2 on: March 19, 2023, 10:02:46 am »
It's some custom module.
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Offline NiaDebesisTopic starter

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Re: Unknown componenti, help identifying
« Reply #3 on: March 19, 2023, 10:23:53 am »
So if its broken I am screwd
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Online wraper

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Re: Unknown componenti, help identifying
« Reply #4 on: March 19, 2023, 10:27:28 am »
Well, likely it can be taken apart and repaired but it will be very troublesome as it's most likely potted.
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Offline Wallace Gasiewicz

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Re: Unknown componenti, help identifying
« Reply #5 on: March 19, 2023, 08:04:54 pm »
Possibly a resistor network??
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Online wraper

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Re: Unknown componenti, help identifying
« Reply #6 on: March 19, 2023, 08:05:30 pm »
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Offline RoGeorge

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Re: Unknown componenti, help identifying
« Reply #7 on: March 19, 2023, 09:32:16 pm »
Looks like a hybrid IC, how old is the device?

The good news is that it looks like a casual switching power supply, judging by all the surrounding transformers and the optocouplers.  Maybe the whole thing can be replaced with a generic SMPS with the same output voltage.  Try to look at the silkscreen, or try to get a service manual in order to find the outputted voltages and their max currents.
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Offline R-1125F

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Re: Unknown componenti, help identifying
« Reply #8 on: March 19, 2023, 10:09:30 pm »
What type of equipment is it?  Manufacturer and model number?
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Online gamalot

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Re: Unknown componenti, help identifying
« Reply #9 on: March 19, 2023, 10:26:42 pm »
Maybe a single in-line relay, or resistor networks.

---

Well, I looked again and I noticed that the OP said it's a SMPS, but couldn't find any IC on the board, not even a BJT or MOSFET, so it's most likely a thick film IC module.
« Last Edit: March 19, 2023, 10:43:14 pm by gamalot »
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Online wraper

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Re: Unknown componenti, help identifying
« Reply #10 on: March 19, 2023, 11:10:56 pm »
IMHO it's just a potted circuit on regular FR-4. Maybe a hybrid on ceramic substrate, but I don't think so. Those usually have a hard coating and no enclosure.

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Offline abdulbadii

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Re: Unknown componenti, help identifying
« Reply #11 on: March 20, 2023, 12:36:12 am »
Imho really demands reverse engineer to have its vicinity schematic
is in primary or secondary part ?
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