I have run for months with an unsoldered bias LED

[dede4metal]

Dear all,

This is my first post here but this time around I really need some help. I am an owner of a Crack + Speedball.
Since I bought the unit (used) there has always been a small channel imbalance (low volume on Right CH)at low volume that would go away when turning the volume up.

After few month I wanted to find out what was wrong, it took me a while but the HLMP-6000 bias LED attached to A8 is not soldered anymore to A8, only to A.

ARGH! Have I ruined something? I should change it straight away right?

--- EDIT ---
After fiddling with it I have switch it on again and this time around no sound from the Right CH, this probably means before it was desoldered but still touching A8?

Thanks.

[Paul Birkeland]

A channel imbalance isn't likely to be caused by the LED not being soldered, but it is covered under the Crack FAQ post:
http://bottlehead.com/smf/index.php?topic=4295.0

Are you able to solder the LED back in place?  Are you able to measure voltages?

[dede4metal]

Thanks for the reply:

A channel imbalance isn't likely to be caused by the LED not being soldered, but it is covered under the Crack FAQ post:
newbielink:http://bottlehead.com/smf/index.php?topic=4295.0 [nonactive]

Thanks for pointing this out to be, when fixed the LED problem I will have a look into it.

Are you able to solder the LED back in place?  Are you able to measure voltages?

I am able but I need to buy a soldering station (mine broken) so it will take some time, I can measure voltages now but I am afraid that if I connect the CRACK with a broken LED contact it will damage the tube. I will buy the LED, the soldering unit and put it back into place then what check do you suggest? The usual one that are on the guide?

[Paul Birkeland]

Yes, you'll want to check the voltages listed in the Speedball manual.