Hi
I have Amplifier ka 7020 - and I don't know if works fine or not. My problem is , When Bass and treble is not full and push the loadness button (ON), the sound boost , but turn Bass and treble to full and push the loadness button (ON) the sound not boost . Is normal or have some problem with loadness bottun! THANKS FOR HELP , I 'm new in this forum , and thanks for your sapport!
I have Amplifier ka 7020 - and I don't know if works fine or not. My problem is , When Bass and treble is not full and push the loadness button (ON), the sound boost , but turn Bass and treble to full and push the loadness button (ON) the sound not boost . Is normal or have some problem with loadness bottun! THANKS FOR HELP , I 'm new in this forum , and thanks for your sapport!
According to the schematics the boost of tone controls is done via grounding the negative feedback lines.
Loudness switch is grounding the same lines - via resistors.
Once these lines are shorted to ground by tone controls then additional grounding via loudness switch has no effect - the lines are already fully grounded.