rectifier
Member
So I got myself a pedal platform amp, or at least something that I think will work nice with pedals, a Blackstar HT-5TH. Got it cheap off ebay, it arrived and I found out that the EQ on the overdrive channel is not working.
Now the funny thing is:
Bass Pot - Not working
Middle Pot - Not working
Treble Pot - Acts as a 2nd volume control
ISF Tone Pot - Works but also in a weird way, turning it down decreases the overall volume
I have been studying the schematics and the OD channel is not that complicated, It's not even tube based. I measured all the components in the EQ section and didn't find anything wrong so far. But maybe someone knows more than I do.
Any ideas what components could be responsible that the treble acts like a Volume? For me it seems that the signal may go straight through the pot
Now the funny thing is:
Bass Pot - Not working
Middle Pot - Not working
Treble Pot - Acts as a 2nd volume control
ISF Tone Pot - Works but also in a weird way, turning it down decreases the overall volume
I have been studying the schematics and the OD channel is not that complicated, It's not even tube based. I measured all the components in the EQ section and didn't find anything wrong so far. But maybe someone knows more than I do.
Any ideas what components could be responsible that the treble acts like a Volume? For me it seems that the signal may go straight through the pot
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