Connect with us

Doorbell IC circuit -Black Bob

Discussion in 'General Electronics Discussion' started by rajat, Oct 1, 2013.

Scroll to continue with content
  1. rajat


    Jun 3, 2012
  2. Fish4Fun

    Fish4Fun So long, and Thanks for all the Fish!

    Aug 27, 2013
    black bob (sic blob).....rajat, yes, as you state it is an IC. The packaging format is "un-potted" or "un-packaged". This is generally done with very high volume PCBs where saving $0.02 means adding 6 figures to profits....sadly, it also means that the device is so cheap to mfg that they do not intend for it to be repaired.


    1) Check & verify the battery/power connections

    2) Buy a new one.

Ask a Question
Want to reply to this thread or ask your own question?
You'll need to choose a username for the site, which only take a couple of moments (here). After that, you can post your question and our members will help you out.
Electronics Point Logo
Continue to site
Quote of the day