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Pioneer QX-8000a power switch replacement (repair help)

aglaonike

New Member
Greetings!

I am looking at replacing a broken power switch on this Pioneer QX-8000a I found at the "side of the road" store. (Button is missing and switch is perpetually in "on" position)

I bought this replacement switch: https://www.ebay.com/itm/113248396279 which comes with one snubber capacitor - It is a Kemet .01 uf Y5V X1Y1 safety capacitor, rated at X1 400VAC/Y1 250VAC

The original switch has two capacitors attached:

IMG_6391.jpg

Do I need to buy another capacitor so there can be one for each side? Can anyone point me in the right direction so I can figure out how the wires will be placed on the new switch?

Thanks in advance for any help and all your patience!
 
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The reason why you see two snubber capacitors attached to the power switch is most likely because the unit is multi-voltage. In other words, it might accept 110/120/220/240Vac 50/60Hz depending on the geographical region. Can you check the back of the unit and see if there's a voltage selector and/or a more precise model number / name?
 
one snubber across one set of contacts, two sets of independent contacts - TWO snubbers...

your old switch had 2 connections per side, the third connection was never installed on the switch (those empty holes).
your new switch has the three connections per side. Normally closed (you will not use) / common / normally open (closed when button locked on/down)

If you are careful, you can reuse the snubber caps and insulators.

upload_2022-4-20_18-40-55.png

upload_2022-4-20_18-46-11.png
 
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Found out the hard way those switches break frequently. I just ripped out the springs. You can push them on pull them out that way. Easy peasy, lemon...
I know as soon as I would try to replace them another one would break. Yes, the next to go was the tape monitor switch. SX-3500. BOSE.. DOUBLE THUMBS DOWN!! I bought the 401's, brought them home, first one blew I blamed it on my son. Then the second one did. I know wrong forum. SORRY, HAD TO GET THAT OFF MY CHEST.
 
Hi! I wanted to thank you for your reply, markthefixer - I ordered a new snubber so I have two now. However, I had to put everything on hold until I finish moving 2500 miles across the country. I will update as soon I get settled and actually complete the wiring!

But thanks again, your reply was super helpful!


one snubber across one set of contacts, two sets of independent contacts - TWO snubbers...

your old switch had 2 connections per side, the third connection was never installed on the switch (those empty holes).
your new switch has the three connections per side. Normally closed (you will not use) / common / normally open (closed when button locked on/down)

If you are careful, you can reuse the snubber caps and insulators.

View attachment 2544602

View attachment 2544609
 
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