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Here's the short of it:I was given a Teac A-6300 and Sansui SD-7000, along with some reels. Both are in great physical condition, especially the Sansui, but they seem to only work in fast forward, no matter which buttons are pressed. I don't know if this is something that can be fixed by cleaning contacts or making an adjustment, or if they just need to be serviced.
If they need to be serviced, can anybody recommend a quality service center or technician in the midwest? Specifically within a two or three hour drive from Omaha? Any help would be GREATLY appreciated. Thanks!!
-PK
Follow Ups:
Is there a specific kind of oil or grease for lubricating the solenoid, capstan, etc.? I know how there are many opinions for turntables...-PK
I have found that over the years the grease they used on the pinch roller assembly mechanism tends to dry out and then it will not move freely. The solenoid cannot overcome the drag of the old grease. If you are handy you can easily disassemble the mechanism, clean and relube, and you will be good as new. Be very careful with disassembly and reassembly, there are small washers and circlips that easily fly off or fall into where they are not supposed to be. Look very carefully as you disassemble.I make this sound far harder than it really is. Go for it!
Best,
otari :-)
My mother-in-law, after seeing the Levinson 33H amps in my listening room: "Those are the nicest electric room heaters I've ever seen".
Hi.I had a TEAC 2300S that did the same thing. When the pinch roller doesn't press the tape firmly against the capstan, the tape speed isn't regulated & it's akin to the tape being fast-forwarded.
Use an old tape & try pressing the pinch roller gently into the capstan while pressing "play". If it seems to play ok, it's probably either the solenoid or the control circuit that applies electricity to the solenoid. If it clicks like it's trying to work but can't quite make it, the lube in the solenoid could've stiffened up.
I disconnected the AC from the deck & flushed out the solenoid with contact spray & worked it back & forth until it felt free. Then I hit it with some Cai-lube spray & waited 'til the spray evaporated. I plugged it back in & presto... it worked.
I'm not saying that's the thing that's wrong with yours, but that was my particular case.
Good luck!
Bobbo :-)
The pinch roller on the Teac is too stiff to be moved mechanically, so I just moved it toward the tape, and it worked perfectly. How can I clean and oil this? It seems like it wants to move. I should probably spring for the service manual...The pinch roller on the Sansui moves when buttons are pressed, the motors don't move when the roller is up. It seems to spin freely when it's down. Oh well. One at a time, I suppose.
-PK
I dunno about the Sansui, but if you unplug the AC mains & remove the back cover on the TEAC, you'll see a steel piston-like device maybe 2 or 3 inches long with a couple wires attached that moves the pinch roller up & down. That's the solenoid.You could try blasting it out with contact cleaner while manually moving it up & down 'til it feels free. Just spray it down the shaft of the solenoid. Once it's freed, shoot some Cai-lube down the shaft of the solenoid & work it several times. Wait 'til the spray is evaporated before plugging it back in. (Maybe an hour)
Let me know how it works out for you. Of course, it's at your own risk & all that. It worked for me but it may not be the problem with yours. It sounds like exactly the same thing mine did, though.
Cheers & good luck!
Bobbo :-)
I have a Teac A-4010 SL (anyone w/a spare head block cover?) and
experienced a similar problem. It's possible that the grease that
was in place between the solenoid and the linkage that attaches
to the pinch roller has sence gummed up. I've cleaned those surfaces
as good as I can without dismantling it and then put fresh lubricant
where the old grease used to be. My symptom was that the pinch
roller wouldn't put enough pressure on the capstan to pull the tape
across the heads. When manually pressed against the capstan, it
worked. When you hit stop, the capstan SHOULD snap back to it's
resting position. Prior to cleaning and relubing, it s-l-o-w-l-y
drifted back to it's resting position. There also should be a fine
adjustment at the solenoid if the solenoid can't/dosn't pull the
pinch roller quite up enough to make sure contact with the capstan
but without a professional advising you, I'd touch it as last resort.
(bought mine for $1.25, bought a belt for $8 and bypassed the
special plug in for the AC and wired a plug direct to the unit,
won't loose much if I screw up an adjustment or procedure)Alex
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