Hello,
i tried to build a F6 amplifier with all parts from DIY store. Yesterday i switched on and hear only music from board A!
I measured all resistors of both boards in the installed state without current and found out that the resistor R3 in board B hasn't 100 Ohm but only 37 Ohm! At board A the R3 has 100 Ohm.
Can someone tell me the reason for this?
Thanks.
i tried to build a F6 amplifier with all parts from DIY store. Yesterday i switched on and hear only music from board A!
I measured all resistors of both boards in the installed state without current and found out that the resistor R3 in board B hasn't 100 Ohm but only 37 Ohm! At board A the R3 has 100 Ohm.
Can someone tell me the reason for this?
Thanks.
Hi steppenwolf2,
As you described, perhaps because you soldered 37 ohms instead of 100 ohms for R3 in board B?
As you described, perhaps because you soldered 37 ohms instead of 100 ohms for R3 in board B?
Check if you have an short to ground somewhere.
Also, you may get more responses if this were posted to the Pass Labs forum.
You may consider asking a moderator to move this thread over there.
Also, you may get more responses if this were posted to the Pass Labs forum.
You may consider asking a moderator to move this thread over there.
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Please post a series of well-lit, in-focus photos of your build. Both channels, PSU, connections.
I hope you are able to see the mistake.
I think the error is the following:
as i turned on the amplifier, the bios on the "B" board was at zero, so i had no signal. then i tried to measure the individual resistors and caused a short, which destroyed a component, which i don't know now.
I think the error is the following:
as i turned on the amplifier, the bios on the "B" board was at zero, so i had no signal. then i tried to measure the individual resistors and caused a short, which destroyed a component, which i don't know now.
Attachments
Usually the most expensive hard to replace one(s) What were you thinking? Fumbling about in a powered circuit?
I have now fitted the B board with new components from the diy store and now the F6 plays flawlessly on small speakers 🙂 When I connect the F6 to my actively driven TAD 4002 (117dB) horns (that's what I built them for) I have a relatively loud background noise. Can anyone tell me how I could eliminate this as it is very annoying.