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Lights stay on! Yamaha ca-2010

oftheclod

oftheclod

New Member
Hi all,
Got a Yamaha ca-2010 old girl up and running from the curb yesterday!
Had to replace a power cord and a fuse and it sounds terrific hit it with deoxit and all the switches are working and quiet - only problem is all the lights stay on even when switched off!
what might this mean?
 
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Power switch not working OK? Does it still play audio when "switched off"? Carefully check for mains AC voltage
at the SWITCHED outlet at the rear, amp powered off.

Somebody has replumbed the lamp supply. Lamps are fed AC from 2 blue wires (marked LAmps) on the power supply board
accessable from underneath, maybe post a pic.
upload_2020-8-6_15-59-21.png
 
Check for mains voltage at the switched outlet at rear, amp power switch in off position.
Post a pic of the power switch
 
mbz said:
Power switch not working OK? Does it still play audio when "switched off"? Carefully check for mains AC voltage
at the SWITCHED outlet at the rear, amp powered off.

Somebody has replumbed the lamp supply. Lamps are fed AC from 2 blue wires (marked LAmps) on the power supply board
accessable from underneath, maybe post a pic.
View attachment 1945970
Click to expand...

it does still play when ‘off’. So it’s maybe that the power switch isn’t working? Would this be something at the switch in front, or the power board in the rear of the amp?
 
Hoping to get the outer cover off again tomorrow and send some pics. It sounds terrific, but just want to get the power switch working - this thing is HOT!
 
Replacement switch...


Check the datasheet sheet drawing and compare the mounting screw pattern for the snap switch at the back side of the on/off lever.

https://www.mouser.com/ProductDetail/Omron-Electronics/V-21-3C6?qs=zPELyVczQCN8rPeWPueWkw==

Some disassembly required -- screwdriver and soldering tools etc.

Datasheet
https://www.mouser.com/datasheet/2/307/en-v-1670758.pdf

Will likely need one of these if you can't salvage the OEM RC network soldered across the switch contacts.
https://www.mouser.com/ProductDetail/Cornell-Dubilier-CDE/104M06QC150?qs=N93jU/OIph4obXMkYa7MTg==
 
Last edited:
avionic said:
Replacement switch...


Check the datasheet sheet drawing and compare the mounting screw pattern for the snap switch at the back side of the on/off lever.

https://www.mouser.com/ProductDetail/Omron-Electronics/V-21-3C6?qs=zPELyVczQCN8rPeWPueWkw==

Some disassembly required -- screwdriver and soldering tools etc.

Datasheet
https://www.mouser.com/datasheet/2/307/en-v-1670758.pdf

Will likely need one of these if you can't salvage the OEM RC network soldered across the switch contacts.
https://www.mouser.com/ProductDetail/Cornell-Dubilier-CDE/104M06QC150?qs=N93jU/OIph4obXMkYa7MTg==
Click to expand...
This is great thank you!
 
Parabellum27 said:
You got a CA-2010 from the curb?! That is one hell of a find, congrats!
Click to expand...
Yea! I walked out to get coffee and it caught my eye! Googled it and immediately brought it inside despite its cut power cord. Anyway now it seems I’ll have to replace the power switch.
 
oftheclod said:
Yea! I walked out to get coffee and it caught my eye! Googled it and immediately brought it inside despite its cut power cord. Anyway now it seems I’ll have to replace the power switch.
Click to expand...

Now rush to get some lottery tickets! :-)

On the Canadian market, a good CA-2010 is worth more than 1000$CA (750$US).
 
mbz said:
Switch mounted on front panel, remove base plate and get pic of wires/switch tabs etc...
Click to expand...
Here’s the back of the power switch
 

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Yep it looks like it has seen some heat from arcing contacts..
This is the part that gets replaced..Snap action switch..
upload_2020-8-7_12-59-28.png
 
avionic said:
Yes . The part I posted is a suitable replacement 250v /21amp contacts.

will also probably need...
Click to expand...
ordered the parts and waiting for them to arrive - would anyone happen to know where to find a walk-through of doing this work? Will I have to detach circuit boards to replace the switch? I have tools and a soldering iron (but no experience haha).

I'm willing to try obviously but could only find this version of the repair manual online: https://www.hifi-archiv.info/Yamaha/CA-2010s/
 
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