HP Elitebook 8470W internal component with buttons - what does it do?

0

I spilled a glass of juice on my laptop, which is a problem in and of itself but I'm up to that task. However when I took the bottom off the laptop with a view to simplifying the cleaning process, I found there was a separate modular component at the front of the layout connected to the main board by power wires. This was the only connection. The module had two "soft" buttons on it. Buttons which obviously could not be accessed when the computer was assembled. I've looked through what manuals I could find and haven't found this described. Can anyone tell me what it is, what it's for and what the buttons do?

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Neil McCulloch

Posted 2016-12-12T14:00:25.903

Reputation: 1

Can you upload a picture? – sbrm1 – 2016-12-12T14:08:30.063

Clearly it's a battery, I'd guess the CMOS one - but with two buttons? – Neil McCulloch – 2016-12-12T19:26:32.507

Obviously a batter, probably the CMOS one, but the two buttons do what? And if I can figure out how post an image, I shall... – Neil McCulloch – 2016-12-12T19:31:29.740

IMG_20161212_134942.jpg IMG_20161212_135126.jpg IMG_20161212_135141.jpg – Neil McCulloch – 2016-12-12T19:38:11.583

1It looks like speakers to me. – fixer1234 – 2016-12-13T04:37:34.323

Answers

2

They're speakers.

As per the fine service manual -which you can find here - its part number 641840-001 and you can find it in page 94

Those 'buttons' appear to be square speakers made by vansonic/Veco - if you needed to go beyond mere curiocity, you can likely find the exact model based on size. Those arn't buttons, and you don't want to push on them.

Journeyman Geek

Posted 2016-12-12T14:00:25.903

Reputation: 119 122

Here's the correct manual: http://h20628.www2.hp.com/km-ext/kmcsdirect/emr_na-c03659338-3.pdf. The speaker assembly on this manual (pg. 94) also matches the one pictured. The spare part number is 641840-001.

– Bob – 2016-12-13T05:58:20.917

Fixed ;p - I literally had a dyslexic moment with the model numbers – Journeyman Geek – 2016-12-13T06:00:02.200

Brilliant! I don't usually associate laptops with speakers or I would've figured that out. Thank you peeps, at least I learned how to post images... – Neil McCulloch – 2016-12-14T19:20:42.313

Service manuals are awesome even when you know what you're doing. HP actually does a very good job at making them available, even if they're a little known resource. – Journeyman Geek – 2016-12-15T00:53:10.230

Asked: 2016-12-12T14:00:25.903

Viewed: 50 times

Active: 2016-12-13T08:48:49.423