EEVblog Electronics Community Forum
Electronics => Repair => Topic started by: lungchard on September 27, 2017, 05:18:26 pm
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I am currently trying to repair a pool chlorinator controller that has a problem with the power supply.
I cannot identify the IC that is used in this unit. It is marked Q311 VJ34 but i can not find it anywhere. The Q may be a letter O or a zero, it is not clear.
It is low power, switches 380VDC and has integral switching device (no external mosfet).
I have attached a sketch of the circuit.
If anyone can offer suggestions as to what the device may be then i would be extremely grateful.
The equipment supplier refuses to help with this matter.
Thanks in advance for any ideas,
Richard
aka lungchard but that is a long story.
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You'd better provide actual picture.
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Never mind, Fairchild FSQ311.
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Hello Wraper,
Many thanks for the reply.
So fast too, the ink was barely dry on the paper!
I will download the datasheet and continue with my repair.
Thanks again, much appreciated.
Richard.
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Fairchild is now part of ON semi. Wow!
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Fairchild is now part of ON semi. Wow!
Yeah, there was a bloodbath in last 2 years. A lot of semiconductor companies got bought / merged.