Ike-- Funny. I just figured it out, and that's what it was. The Molex on the output has some weirdness. I put the connectors on in such a way that what would normally be 2 was 1, and 1 started working.
Thanks everyone for the help! Matt On Tue, Apr 28, 2009 at 7:26 PM, Ike Zimbel <[email protected]> wrote: > Hi Matt, > These posts have been getting to me in a weird order, so I just got your > 1st post now. One question, was Buss-1 working before you changed the pot? > If so, I would look for a solder bridge somewhere, AND, check the solder > joints on the Molex header at the bottom of the card, it may be that the > joint for that output let go when you re-installed the module. > Best, > Ike > > Matt Walsh wrote: >> >> Hello Neotek folks-- >> >> So Jim Fowler (another list member) and I seemed to have solved the >> problem we were having with Buss 8 on our Series II. Bad pot-- problem >> solved. While we were in there, we decided to change all the pots. >> This introduced another problem. >> >> On Buss 1, we do not get output. When we patch any other buss 2-8 to a >> channel everything is cool. When we patch buss 1 we get no signal, but >> we can hear the level changing as we turn the pot back and forth. We >> traced the output (which we are assuming is the bottom of the card) >> back to the resistor tied to the 7 pin of the TL074, and we do not get >> a voltage there. On all other busses we do. We changed out the chip >> and the problem persists. We pulled out that resistor and it's >> neighbor and they measure okay. >> >> The pot measures correctly, all the components seem to measure >> correctly. It seems like signal is getting *to* the opamp. >> >> So 2 things: >> >> 1. Does anybody have a scan of the schematic for the buss master card? >> >> 2. Does anybody have any idea what to look for? >> >> Also, if we want to start something that will allow users to upload >> documents and images, I would be happy to both host it and write he >> software to allow folks to easily share Neotek related stuff. I >> certainly have an interest in doing this. >> >> Best, >> Matt Walsh >> ------ >> >> View the list online at: http://www.mail-archive.com/[email protected] >> >> You can unsubscribe at anytime by sending an email to >> mailto:[email protected] with "unsubscribe neotek" in the message >> body. If you have any difficulties, or questions --please send an email to >> mailto:[email protected]. >> >> The Neotek list is lovingly hosted by Catapult Web. Remember that any >> message or reply sent to the list will be automatically forwarded to all >> subscribers. >> >> Vive Le Neotek! >> >> Thanks. >> >> >> > > -- > Ike Zimbel > Zimbel Audio Productions Ltd. > Toronto > 416-720-0887 > "Studio House Calls" - Repairs and upgrades to analog audio equipment > including: Amek, Allen & Heath, Neve, Neotek, MCI, Soundcraft and more. > > > ------ > > View the list online at: http://www.mail-archive.com/[email protected] > > You can unsubscribe at anytime by sending an email to > mailto:[email protected] with "unsubscribe neotek" in the message > body. If you have any difficulties, or questions --please send an email to > mailto:[email protected]. > > The Neotek list is lovingly hosted by Catapult Web. Remember that any > message or reply sent to the list will be automatically forwarded to all > subscribers. > > Vive Le Neotek! > > Thanks. > ------ View the list online at: http://www.mail-archive.com/[email protected] You can unsubscribe at anytime by sending an email to mailto:[email protected] with "unsubscribe neotek" in the message body. If you have any difficulties, or questions --please send an email to mailto:[email protected]. The Neotek list is lovingly hosted by Catapult Web. Remember that any message or reply sent to the list will be automatically forwarded to all subscribers. Vive Le Neotek! Thanks.
