Bottlehead Forum
Bottlehead Kits => Crack => Topic started by: dede4metal on April 27, 2016, 09:51:14 PM
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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.
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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 (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?
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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:
http://bottlehead.com/smf/index.php?topic=4295.0 (http://bottlehead.com/smf/index.php?topic=4295.0)
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?
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Yes, you'll want to check the voltages listed in the Speedball manual.