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SUPER 8 Rev 1.2 problem
http://byocelectronics.com/board/viewtopic.php?f=52&t=59315		 Page 1 of 1
Author:  jensvda88 [ Thu Jan 28, 2021 2:40 pm ]
Post subject:  SUPER 8 Rev 1.2 problem
Hello,

i am building a super 8 rev 1.2 switcher.

now, i was trying with the youtube video to test it first before put it in the enclosure.

i have some problems.
see video(sorry phone quality)

if it is necessary i take some better photos tommorow.

https://youtu.be/BzVsZEynafI


so i put the power on it turns on but with a lot of leds allready burning.
when i pres the switches 8 , 6 and 8&6 those leds come on.
when i pres switch BP and 2 nothing happens.
to switch mode and banks works also.

when i turn on 6, 8 and 6&8 and pres 2 they al go out?

what can i check or do to fix this issue?

thanks in advance.
Author:  byoc [ Thu Jan 28, 2021 6:36 pm ]
Post subject:  Re: SUPER 8 Rev 1.2 problem
We've had some trouble with a batch of transistors that went into the super8. Remove the transistors that correspond to the channels with problems. The relays for those channels won't work anymore, but the LEDs should work as expected.

You don't need to bother trying to desolder them at the moment. Just snip them off at the legs. If the LEDs work as they should, we'll get you some replacement transistors and you can desolder then.
Author:  jensvda88 [ Fri Jan 29, 2021 2:26 am ]
Post subject:  Re: SUPER 8 Rev 1.2 problem
Hello,

i took some pictures of my build.
you can see them here:

https://postimg.cc/gallery/PxKsK97

so i cut the black transistors at the channels with problems
Author:  jensvda88 [ Fri Jan 29, 2021 2:51 am ]
Post subject:  Re: SUPER 8 Rev 1.2 problem
Hi,

i just cut out the transistors at the channels that didnt work.

and now all the leds go as they have to go.
switching banks or mode also works
save presets (blinking yellow led) and call them up also works.

but as you said, the relay of those channels dont click now :)
so how can i get new transistors?

thanks in advance
Author:  byoc [ Fri Jan 29, 2021 12:17 pm ]
Post subject:  Re: SUPER 8 Rev 1.2 problem
jensvda88 wrote:
Hi,

i just cut out the transistors at the channels that didnt work.

and now all the leds go as they have to go.
switching banks or mode also works
save presets (blinking yellow led) and call them up also works.

but as you said, the relay of those channels dont click now :)
so how can i get new transistors?

thanks in advance


I apologize for the inconvenience. If you contact sales@buildyourownclone.com with your order info we'll get those out to you right away. Alternatively, 2N3904 transistors are pretty common and inexpensive. If you happen to have an electronics store nearby, there's a good chance they will have them. That's if you don't want to wait. Otherwise, we'll send you replacements asap.
Author:  chase.ed [ Wed Apr 28, 2021 9:29 pm ]
Post subject:  Re: SUPER 8 Rev 1.2 problem
Hi,

I’m pretty sure I’m dealing with this same problem. All of the functions with loops and presets seem to work except loop 3 won’t engage and the LED won’t light. I’ve used a cable tester to see if anything is soldered improperly, and looks as though everything checks out. I’ll do some further testing with a guitar signal to make sure there’s no other issues, but I’m convinced this is the only one.

Do I just need to replace that one transistor by the relay? Mine came with 2N5088 transistors.


Thanks,
Chase
Author:  duhvoodooman [ Thu Apr 29, 2021 11:19 am ]
Post subject:  Re: SUPER 8 Rev 1.2 problem
chase.ed wrote:
Do I just need to replace that one transistor by the relay? Mine came with 2N5088 transistors.

Very probably yes. But I'd ask for 2 or 3, just in case.
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