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Spec 1 Dilemna

wlgrant6

wlgrant6

AK Subscriber
Subscriber
Recently was able to pick up a Spec 1 in nice cosmetic condition. But, unfortunately, soon discovered that the right ch was open. Found a problem I have never seen before. The rotary mode switch (ASD-046) has one of the little wipers, or fingers completely missing. Part of the tiny rivet is still there, but, the wiper is gone.

This switch appears to be only used in the spec 1, and is no longer available from Pioneer. Couldn't find anyone selling either the switch, or the "Filter Amplifier Assembly", of which it is a part of. In order to get the Spec 1 operational again, temporarily soldered in a jumper wire to bypass the Mode switch on the right side. The spec 1 is again operational, but of course, the Mode Sw no longer functions.

Anyone have any suggestions as to where I might obtain a switch? The Spec 1 is such a classic piece of equipment, I cannot leave it in this condition.
 
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you need to find someone who is already parting out a Spec-1

i have one that i am mightily resisting dropping to that status, to the point that i am designing a DIY replacement stepped volume control.

that ebay unit really doesn't look like it's fallen that far...

anybody out there with a true parts Spec-1??


edit: we need to check on the actual wafer of the switch, THAT may be reused from another model as a sub part of an assembly.
factors:
1 solder pin spacing
2 positions
3 dimensions including control shaft size and side shafts size and spacing

4 but most importantly, does it have a switching sequence built in (staggered) or is it generic????????? (1 common, 5 selected connections)
 
Last edited:
markthefixer said:
you need to find someone who is already parting out a Spec-1

i have one that i am mightily resisting dropping to that status, to the point that i am designing a DIY replacement volume control.

that ebay unit really doesn't look like it's fallen that far...

anybody out there with a true parts Spec-1??
Click to expand...

Parts is parts..:smoke:
 
With this data in hand, I would have no idea which other models used the same wafer. I have an SA8800 which has the same sequence and selections on it's mode sw. If it is as difficult to get to as the one on the spec, it would be pretty difficult to get to just to look at it. If a correct sw doesn't turn up, I may be forced to go this route. Thanks for the tip. I hadn't thought of that.
 
i have some wafers but will be totally unable to check measurements for 2 months or more from a hospital bed.
 
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