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Author Topic: (Rebadged) Promax FAC-364B power supply  (Read 747 times)

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Offline tatelTopic starter

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(Rebadged) Promax FAC-364B power supply
« on: June 29, 2024, 10:54:19 am »
This power supply has been given to me. Being a Promax product, for sure it's rebranded. I would like to know what the original product is. Perhaps somebody is able to identify it. Please see picture on attachment.
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Offline Doctorandus_P

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Re: (Rebadged) Promax FAC-364B power supply
« Reply #1 on: June 30, 2024, 11:18:47 am »
If you open it up, you may find an OEM name, logo or part number on the PCB.
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Offline tatelTopic starter

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Re: (Rebadged) Promax FAC-364B power supply
« Reply #2 on: June 30, 2024, 01:02:52 pm »
Thank you very much for the suggestion... unfortunately it could be a true Promax product... the board is marked Promax OCC710 However I'm unable to find anything about it. Will try to contact them but not holding my breath.

Anyway I took some more pictures, sorry for the quality on a couple of them. Perhaps they will be useful for somebody in the future.

Best wishes
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Online coromonadalix

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Re: (Rebadged) Promax FAC-364B power supply
« Reply #3 on: June 30, 2024, 04:20:57 pm »
you want to calibrate it ??

it is a basic  psu   seems based on op amp, and classic  intersil 3 1/2 digit displays

reverse schematic  is possible to do   but will take time
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Offline tatelTopic starter

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Re: (Rebadged) Promax FAC-364B power supply
« Reply #4 on: June 30, 2024, 08:31:35 pm »
No, I'm just looking for any available information... easier than reverse engineering. Not that there are any wonders inside, of course
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Online supertrabuco

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Re: (Rebadged) Promax FAC-364B power supply
« Reply #5 on: June 30, 2024, 09:37:33 pm »
Hello, this source is original from Promax, a brand based in Barcelona, ​​and that still continues to make measuring instruments, I have the same one but with analog indicators and there is abundant information from these sources
Greetings
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Offline tatelTopic starter

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Re: (Rebadged) Promax FAC-364B power supply
« Reply #6 on: July 01, 2024, 02:13:25 pm »
Hola supertrabuco, gracias por tu respuesta.

Well, I'm unable to find anything about this device. I just contacted with Promax via web form. We'll see what the answer is. But, if you can give any pointers to any information freely available, I would greatly appreciate it.

Un saludo
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Online supertrabuco

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Re: (Rebadged) Promax FAC-364B power supply
« Reply #7 on: July 01, 2024, 08:42:33 pm »
Hello, I have the manual for the FAC-304 A, which was very similar to the 364, I suppose that if Promax does not send you anything, I will be able to help you
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Offline tatelTopic starter

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Re: (Rebadged) Promax FAC-364B power supply
« Reply #8 on: July 03, 2024, 12:59:15 pm »
Promax people sent to me the manual and schematics. In spanish, of course. I'm attaching it, just in case...
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Online supertrabuco

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Re: (Rebadged) Promax FAC-364B power supply
« Reply #9 on: July 07, 2024, 08:39:26 am »
Hello, thanks for the manual, the regulation circuit is the same as mine, the only difference is what concerns the digital indicators, mine are analogue,
I have had it since 1985 and although I now have others I still use it.
Greetings
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