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what's this?

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snowflake View Drop Down
Old Croc
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    Posted: 06 July 2017 at 1:24pm
Hi

can anyone identify this. mounted on a little bracket just in front of the speaker surround. I assume it is some sort of tiny microphone feeding back distortion measurement to the active amplifier but the part number isn't coming up in google.

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studio45 View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote studio45 Quote  Post ReplyReply Direct Link To This Post Posted: 06 July 2017 at 2:12pm
The round black plastic shape reminds me of an infra-red receiver. Maybe some kind of IR-based excursion sensor? 

But simplest explanations first.... do these speakers have a remote control? LOL
Studio45 - Repairs & Building Commotion Soundsystem -Mobile PA
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odc04r View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote odc04r Quote  Post ReplyReply Direct Link To This Post Posted: 06 July 2017 at 4:00pm
Does look optical as suggested, perhaps part of a laser based driver excursion measurement system?
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snowflake View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote snowflake Quote  Post ReplyReply Direct Link To This Post Posted: 06 July 2017 at 4:04pm
it does have remote control but the sensor is on the back of the cabinet LOL

the way it is mounted I don't think it is optical because that shiny black bit faces away from the driver and the wires out the back are between the device and the speaker surround
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APW View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote APW Quote  Post ReplyReply Direct Link To This Post Posted: 06 July 2017 at 4:40pm
It's a IR remote receiver chip, similar to a VS1838 or TSOP321....

REM = REMOTE signal output.
G = 0v
VCC  = +5v


Edited by APW - 06 July 2017 at 4:43pm
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kedwardsleisure View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote kedwardsleisure Quote  Post ReplyReply Direct Link To This Post Posted: 06 July 2017 at 10:20pm
another vote for infra red remote control receiver. That's what it is.
Kevin

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snowflake View Drop Down
Old Croc
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Post Options Post Options   Thanks (0) Thanks(0)   Quote snowflake Quote  Post ReplyReply Direct Link To This Post Posted: 07 July 2017 at 12:44pm
it is connected to the media player board rather than the amplifier board which also makes me doubt it is an audio sensor. if it is a remote control receiver it doesn't bloody work and the one on the back of the cabinet does LOL

thanks everyone
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kedwardsleisure View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote kedwardsleisure Quote  Post ReplyReply Direct Link To This Post Posted: 10 July 2017 at 10:51am
Kevin

North Staffordshire

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