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Help with mono/stereo switch on T-amp
Help with mono/stereo switch on T-amp
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Old 7th October 2019, 09:30 PM   #1
alou is offline alou  Europe
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Default Help with mono/stereo switch on T-amp

Hello,
I need your help ,
I have a pair of poppulse t-150 used as monoblocks,while cleaning i lifted on and the switch on the bottom that switches from stereo to mono BTL,failed.
I removed the board and the switch looks like the one in the pic,
where can is source something like that or how can i fix this ?


Thanks
switch.jpg
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File Type: jpg switch.jpg (105.8 KB, 86 views)
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Old 7th October 2019, 10:17 PM   #2
rayma is offline rayma  United States
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If the top part of the switch is not damaged, you may be able to reinstall it.
Or if it is broken, buy a new switch and install the new top. No need to
remove the old bottom part. Or just add a wire jumper as a sub for the switch.
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Old 8th October 2019, 07:45 AM   #3
alou is offline alou  Europe
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I would like to avoid re-soldering, its too crowded on the other side of the pcb.
I dont think its broken just gotten loose and fell.
That is what i thought ,just replace the top.
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Old 8th October 2019, 08:06 AM   #4
russc is offline russc  England
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Can you just put it back together?
Secure the top with a dab of hot melt glue if loose.
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Old 8th October 2019, 08:54 AM   #5
alou is offline alou  Europe
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Yes i can do that perhaps but i wanted to restore the switch function,eventhough its always switch to BTL mono.
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Old 8th October 2019, 12:44 PM   #6
sgrossklass is online now sgrossklass  Germany
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It's a very simple switch that should go right back together in the order shown and work, assuming the parts go in the right way round and the black part still holds the slider part fine (try it out with just these two parts first). I think the metal cover has small tabs that may need to slide underneath the base or something, which might make things a bit fiddly but still not impossible... if it won't stay on due to something being broken off, use the hot glue as suggested.
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Old 8th October 2019, 12:52 PM   #7
alou is offline alou  Europe
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the metal cover looks dented on side ,not symetrical.
I found another switch at a local diy store,but its not slided, eventhough looks identical,its with a touch on touch switch which looks more solid.

Someone suggest me i can solder the three legs of the new switch over the three metal slides of the open switch ,to avoid removing the old.
Perhaps just shorting the proper pins together ,with glue over it is simple and more solid.
The older version had a shorting pin inside anyway.
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Old 8th October 2019, 07:25 PM   #8
alou is offline alou  Europe
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I just soldered the coresponding to mono top two together,perhaps later i will just resolder a new switch,to busy to do that now.
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Old 8th October 2019, 10:05 PM   #9
MAAC0 is offline MAAC0  Portugal
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Assuming a ground plane around the switch, sand the pcb and the cover part on both ends and two blobs of solder will hold it in place
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Old 8th October 2019, 10:08 PM   #10
alou is offline alou  Europe
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i just solder it with a solder blob together!They are tiny if you look at the pic had to use a Mag glass to view wile soldering,haven't listen o the amp yet since its late at night but i think it will be ok!
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