DBX TX-3 or Audio Dynamics T-200 Service Manual? - diyAudio
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Old 19th January 2010, 10:51 PM   #1
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Default DBX TX-3 or Audio Dynamics T-200 Service Manual?

Hi,

Anyone have have the service manual for either the DBX TX-3 MkII or Audio Dynamics T-200 tuner in a distributable form? I haven't been able to locate one yet. Thanks in advance.

F
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Old 15th April 2011, 05:10 AM   #2
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Default dbx-3 service manual

Just acquired a TX-3 and wonder if you were able to find a schematic? Ed
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Old 17th May 2011, 11:57 PM   #3
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Location: Fairport Beach (in Pickering), Ontario
Hate to resurrect old threads, but since their was no response posted I hope no one minds.

I have an original TX-3 on the way and I'm also looking for a schematic/service manual. Would a NAD 4300 main board schematic be the same?

Thx.
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Old 14th July 2014, 06:54 PM   #4
baco99 is offline baco99  United States
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Hi all
I, too, am in need of a service manual for this model. Any help would be great!
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Old 14th July 2014, 10:42 PM   #5
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Default dbx tx-3 SM

Six years and no SM. Found bad transistor in muting logic in tx-3. Had FM working well but lost it when I started to try and fix the AM. Finally bought a second working TX-3 to use as schematic. Haven't finished this project -- put it aside to work on others. Bob F. in Yahoo FM tuner group had some suggestions about how to locate a schematic but not able to follow up. What is wrong with yours? Or do you just want to rebuild it? Maybe I can help.
Ed Von Essen, Ventura, CA, USA
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Old 14th July 2014, 11:57 PM   #6
baco99 is offline baco99  United States
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Quote:
Originally Posted by edvonessen View Post
Six years and no SM. Found bad transistor in muting logic in tx-3. Had FM working well but lost it when I started to try and fix the AM. Finally bought a second working TX-3 to use as schematic. Haven't finished this project -- put it aside to work on others. Bob F. in Yahoo FM tuner group had some suggestions about how to locate a schematic but not able to follow up. What is wrong with yours? Or do you just want to rebuild it? Maybe I can help.

Ed Von Essen, Ventura, CA, USA


Problem holding stations.

Problem holding presets/memory.

Sounds great when it works.
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