Swap your RCA's input to the amp. Does the channel that works switch to the other side? If so, then the problem is either your rca wire, or in your source unit. (try the wire first). If the same channel still is out, then problem in the amplifier or speakers. Move to swaping the speaker wires, right to left, and left to right... If problem same, then trouble is AMP, if problem moved, then trouble is speaker. If amp, remove amp, troubleshoot amp... (there are 3 basic parts to any amp... Power supply, input section, and amplifier section...) You know it's not the power supply because the sound is good on at least one channel, and most alll amps use one power supply for all channels, so if one channel sounds good, then you can rule out the power supply. Second, when an amplifier fails (usually, 90% of the time or more) it will result in a shorted output transistor or some other nasty condition that will blow a fuse, or toast a supply almost instantly, and again, your amp powers up, so odds are that the amplifier section of the amp might be ok. (no guarantee here, it's just the odds...I'd say it's like a 40/60 thing.... This leaves you to focus on the input section. First rule out the simple things... bad wiring, (rca, or speaker), bad speaker, bad source. Then rule out the simple things at the amp... broken rca input connectors (inside the amp at the PCB where the solder is) or outside the amp, where the jacks may have been crushed. Then rule out broken speaker terminals, where they can be cracked inside at the board where the solder is in the same way. After all this, you need your amp serviced by a qualified tech.
186 views
Usually answered in minutes!
×