RedShoeRider
- Nov 13, 2013
- 2
- Joined
- Nov 13, 2013
- Messages
- 2
Good Evening, All:
Though I realize this is a shot in the dark, perhaps someone else has run into this one!
I recently acquired a Tek 7L12 spectrum analyzer plugin for cheap in an unknown condition. Besides looking like it was run though a dirt machine, it's in ok condition. Gave it a good cleaning; it looks not-halfway-bad now! Inserting it into the 7903 mainframe I have, it rapidly (1sec on - 1sec off - 1 sec on) cycles. After a few seconds, I shut it off, not wanting to hurt the mainframe or the module.
Starting to dig though it, I found that if I removed the connector P872, located on the rear of the unit, it worked! Well, mostly. It powers up, communicates properly with the mainframe, changes modes, etc. It does not display a spectrum though, as the board that connector feeds is the IF board.
Being that there is a ton of work to go though to troubleshoot out that whole board, has anyone run into this particular problem before, and do you recall how it was fixed? I know it's an old module, well past it's "normal" lifespan, but if this saves me 10's of hours of troubleshooting....terrific!
Thanks a lot, all!
-Red
Though I realize this is a shot in the dark, perhaps someone else has run into this one!
I recently acquired a Tek 7L12 spectrum analyzer plugin for cheap in an unknown condition. Besides looking like it was run though a dirt machine, it's in ok condition. Gave it a good cleaning; it looks not-halfway-bad now! Inserting it into the 7903 mainframe I have, it rapidly (1sec on - 1sec off - 1 sec on) cycles. After a few seconds, I shut it off, not wanting to hurt the mainframe or the module.
Starting to dig though it, I found that if I removed the connector P872, located on the rear of the unit, it worked! Well, mostly. It powers up, communicates properly with the mainframe, changes modes, etc. It does not display a spectrum though, as the board that connector feeds is the IF board.
Being that there is a ton of work to go though to troubleshoot out that whole board, has anyone run into this particular problem before, and do you recall how it was fixed? I know it's an old module, well past it's "normal" lifespan, but if this saves me 10's of hours of troubleshooting....terrific!
Thanks a lot, all!
-Red