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DRC450 - circuit board pics

 
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classybum



Joined: 14 Nov 2004
Posts: 7

                    
PostPosted: Mon Aug 22, 2005 8:17 pm    Post subject: DRC450 - circuit board pics Reply with quote

hello all-

a while back i posted about my cable remote, a DRC450. it had 6 holes drilled in the board, visible from the battery compartment. I never took it apart because it required a small torx driver i didnt own at the time. Today i took it apart and snapped some shots. They're decent, a little large, but hopefully you can see the required stuff to tell me how to solder in a jp1 plug.

exterior pics:
http://netfiles.uiuc.edu/kjolson/www/DRC450/batteries.jpg
http://netfiles.uiuc.edu/kjolson/www/DRC450/buttons.jpg

board pics:
http://netfiles.uiuc.edu/kjolson/www/DRC450/bottom.jpg
http://netfiles.uiuc.edu/kjolson/www/DRC450/top.jpg

The fact that there is only 1 chip kinda makes me fear that this guy isnt jp1-able.

the chip reads:
N421A
3C80A5AHVSMT5
(C) UIEC 2002
J1839

any potential for this thing??

thanks,
kevin
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Mark Pierson
Expert


Joined: 03 Aug 2003
Posts: 3017
Location: Connecticut, USA

                    
PostPosted: Mon Aug 22, 2005 8:21 pm    Post subject: Reply with quote

I keep getting a prompt for a user name and password when trying to view the pictures...
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classybum



Joined: 14 Nov 2004
Posts: 7

                    
PostPosted: Mon Aug 22, 2005 8:24 pm    Post subject: Reply with quote

should be fixed now i think.. had to fix permissions, sorry
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prelude
JP1 Vendor


Joined: 26 Jun 2004
Posts: 119
Location: Canada

                    
PostPosted: Mon Aug 22, 2005 8:54 pm    Post subject: Reply with quote

classybum wrote:
should be fixed now i think.. had to fix permissions, sorry


I doubt it is JP1 compatible. Do you see any cooper tracks connected to 6 holes?
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classybum



Joined: 14 Nov 2004
Posts: 7

                    
PostPosted: Mon Aug 22, 2005 9:59 pm    Post subject: Reply with quote

prelude wrote:


I doubt it is JP1 compatible. Do you see any cooper tracks connected to 6 holes?


nope. but i figured if its got the right chip and stuff, maybe it'd be possible to throw the male pins into the six pre drilled holes, and then just solder wires to the right points on the board?
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The Robman
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Joined: 01 Aug 2003
Posts: 21237
Location: Chicago, IL

                    
PostPosted: Tue Aug 23, 2005 6:33 am    Post subject: Reply with quote

Take a look around and see if there are any pics of the inside of the DRC400 remote, as that one is JP1 compatible (or at least, it might have been hacked to be). If we work on the assumption that the chip here is either the same as, or similar to, the DRC400 chip, it might give you some clues as to where to solder the wires and the EEPROM chip.
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classybum



Joined: 14 Nov 2004
Posts: 7

                    
PostPosted: Thu Aug 25, 2005 12:30 am    Post subject: no dice Reply with quote

i tried yahoo and google and searching motorola's websites, and could find no pics of the drc400 circuit board.

and, unfortunately, the cable company is using new boxes and remotes and i just moved and had to turn in the old box and remote. so i no longer have the drc450 anymore. now i have those new jp1.2 remotes that comcast is using as well.

oh well. finally ordered some 9910s, so that i can finally start toying around with this stuff.

thanks for the input guys,
kevin
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