Actually good to know that you know the wiring diagram of your build.
Here's what i can help (tune by ear):
-Reset the LOC gain to the middle
-Reset (sagad sa counter-clockwise) the gain of channel 1&2 and channel 3&4)
-Switch to FULL instead of HPF for channel 1&2 and channel 3&4
-Do a pink noise (unoccupied radio station will do)
-Turn the amplifier gain clockwise until you hear clipping
-Do the same for the gain sa other channel
-Play a familar song to you
-Check if pwede na yung tunog. If not, do the gain again.
Or you can use a digital multimeter if you have 1 laying around.
PM nalang tayo if you have other inquiries or we can use the thread para malaman din ng iba. Hehe i think part of the thread naman yung concern mo![]()





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