View Single Post
  #2   Report Post  
Sam Goldwasser
 
Posts: n/a
Default

(Chris Reddie) writes:

Please be patient while I give you all the information I have.

I have a circuit board (stamped CJ95). Attached to the board are 4 LED
lights, a battery holder for 3 LR44 batteries, and a rubber button. When
the button is pushed, the lights cycle in order. Push it again, and they
all flash together. A third push produces another flashing sequence, as
does the fourth push. (It's a novelty item).

Is there an easy way to make this unit stay on without flashing? Oh,
there is also a black blob of let's call hardened black plastic hiding
something.

See, I don't know anything abou circuitry, but I do know what I'd like
these items to do.


The black blob is hiding a computer. Well, actually a digital circuit that does
the flashing etc. You can bypass the black blob with a resistor to make the
LEDs just stay on.

--- sam | Sci.Electronics.Repair FAQ Mirror:
http://repairfaq.ece.drexel.edu/
Repair | Main Table of Contents: http://repairfaq.ece.drexel.edu/REPAIR/
+Lasers | Sam's Laser FAQ: http://repairfaq.ece.drexel.edu/sam/lasersam.htm
| Mirror Sites: http://repairfaq.ece.drexel.edu/REPAIR/F_mirror.html

Note: These links are hopefully temporary until we can sort out the excessive
traffic on Repairfaq.org.

Important: Anything sent to the email address in the message header above is
ignored unless my full name is included in the subject line. Or, you can
contact me via the Feedback Form in the FAQs.