View Single Post
  #10   Report Post  
Posted to sci.electronics.repair,rec.audio.tech
Richard Crowley Richard Crowley is offline
external usenet poster
 
Posts: 4,172
Default HELP - Please Identify These Two Parts....................

"EADGBE" wrote ...
Actually, I'll do just a bit better.

Here are ALL of the circuit board traces, done as best as I can. Let
me know if the traces aren't clear enough:

http://i240.photobucket.com/albums/f...23/CIRCUIT.jpg


That is good, but you don't indicate which nodes connect to
the motor, and which are the power input (+ and -). Without
that critical info, it won;t be easy to make much sense out of
the circuit.

By the way, the AN6601 laid flat against the circuit board, with the
label side DOWN.


Are you SURE you have a replacement for this IC?
Panasonic lists it as an "application specific circuit"
(i.e. a custom-made chip, not a generic part). And it
says that it is "obsolete" (i.e. not made anymore). Also
there is no indication that it is a "regulator", or that it
has any replacement.

http://industrial.panasonic.com/www-...5+AN6601N+8+WW

Furthermore, the original was so burned up (as shown
by your excellent photo), that I would be reluctant to
just replace it without determining WHAT caused the
original to burn. I don't remember that you revealed
anything about the motor itself (impedances?, windings?,
brushes? mechanical rotation? etc.)