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Calling All "Vintage" Integrated/Receiver Owners - Page 415

post #6211 of 16998

Just snagged a recapped and serviced Pioneer SX-1280 :) Awaiting delivery and it shall be used to primarily power my HE-6..biggrin.gif

post #6212 of 16998
Congrats! We will look forward to pics wink.gif
post #6213 of 16998

1980 Pioneer SX-D7000 Update:


Some of you may recall that when I bought my iron, the Fluoroscan meters did not work. So, after enjoying my price-adjusted purchase for some six odd months, I fired up the rig @ midnight for a promising overnight session. 


With my amp sitting on the lowest shelf, 0.5" off the floor, I rarely look down when I lean over to hit "Power." First thing I do is make sure the big fat round volume know is turned to zero and then I hit it. 


I stepped out the room for a hot minute. Upon my approach...eek.gif well, I'll be John Brown! Both meters were fully illuminated. Ain't never seen 'em lit up before. 5.5 hours have now past and they're still lit. However, the power meters are intermittent. 


Although, I never cleaned the internal switches and things, I suspect I might have a short. Because, when reviewing the selectors with the volume turned all the way down in AUX mode (DAC is connected here), I can hear music playing at low volume when I select either FM-AM-PHONO 2-PHONO 1. But no sound output with AUX with volume all the way down.


Somehow, there's a connection between the fluoroscan meters and these switches. Though I haven't fixed anything yet, I'm still excited this morning to finally have seen this bad boy in all its glory.




Edited by Silent One - 11/27/12 at 5:49am
post #6214 of 16998
Originally Posted by Silent One View Post




Sometime miracle just happens like bad luck!! Congrats!beerchug.gif

post #6215 of 16998
Originally Posted by Meewoo View Post

Originally Posted by Silent One View Post



Sometime miracle just happens like bad luck!! Congrats!beerchug.gif


Thanks. I'm hoping a good Betty Ford DeOx treatment will set it straight. Since I sit sideways a mere 12" from the rack, I rarely lean over to look down. Had I not left the room, a few more weeks might have passed before I noticed anything.rolleyes.gif

post #6216 of 16998
Check the PCB connector cables when you are in there cleaning, and disconnect, clean, and reconnect. That might be all you need ! Sweet.
post #6217 of 16998

Appreciate the guidance. Gonna sleep on it right about...now.wink.gif

post #6218 of 16998
Thread Starter 
Glad they started working. Hopefully a little cleaning will make it permanent.
post #6219 of 16998

That's cool that your fluoroscan displays are now lighting up.  She looks real pretty!  I have a 10+ year old NAD A/V receiver that takes about 10 minutes for its fluoroscan display to light up after its powered on.  Maybe I need to do some internal cleaning on it too?

post #6220 of 16998

Fluroscantastic! I wonder if there's high voltage on those connector pins. If so, it behooves to either eliminate the connectors and hard-wire the display to the pcb, or thoroughly clean the connectors with something like DeoxIT and follow up with a protecting liquid like DeoxIT Gold.


I enjoyed this message on the Caig website informing us customers that the site would be down, or downish, in the coming weeks:



During the weeks of December 3rd and 10th their maybe delays in shipments.

Thank you for your patience and inconvenience during this time.


UPDATE: I'm chagrined to learn that Pioneer's trademarked name for their famous display is not "Fluoroscan", as I'd always thought, but Fluroscan. Obviously this can cause confusion in a search, since a very large number of us have had it in our heads as "Fluoroscan". 

Edited by wualta - 11/27/12 at 10:21pm
post #6221 of 16998

After retiring this morning @ 0900 hours, I just woke up @ 1400 hours. Leaned over to hit "Power" - got more lights than displays at Holiday! ksc75smile.gif Though, I do have a confession to make. Initially, when I took the case off for cleaning when I first brought it home, I discovered I had completely run out of cleaner.blink.gif Looked down at all the dirt and simply resigned to putting the case back on. Wished I'd handled it the first time.

post #6222 of 16998

Sometimes all it takes is unplugging a connector, glaring at it, then plugging it back in. Sometimes a quick wiggle does it.

post #6223 of 16998

Even though I lack cleaner, I should just go ahead and get in there and make something happen!

post #6224 of 16998
Originally Posted by wualta View Post

Sometimes all it takes is unplugging a connector, glaring at it, then plugging it back in. Sometimes a quick wiggle does it.


Turns out angry stares not only work on bad dogs, they work on bad VU meters. Who knew?

post #6225 of 16998

Speaking of VU meters: Their plastic faces can pick up static charges strong enough to pull the needle mid-scale. In this case, going in for the glower and sneakily exhaling some high-humidity breath is a magical cure. Impress your non-audio friends.


Silent One: Why not "air test" the amp-- ie, continue using it as normal-- and see how long it takes for the meters to fail again, and under what conditions. They might not fail. But if they do, you'll definitely want some contact cleaner close at hand. At least you know it's not very likely to be a problem in the display (which I believe is vacuum-fluorescent, or VF) itself. Here's a possible clue from the Antique Radios site:


"A very common failure of Fluroscan displays is for the connections going to the heater [ie, filament] to tear loose from the circuit board that the panel solders into. The reason for this is that the heater connections get very hot during use, and after many heat/cool cycles the solder gets brittle."

Edited by wualta - 11/27/12 at 10:05pm
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