20 Most Recent Harbinger APS12 12 Powered PA Speaker Questions & Answers

This is most likely a power supply issue which will require a trip to the repair shop.

This schematic is not available? you will need to contact the company... http://harbingerproaudio.com/product/v2115/

measure it with a fluke or similar multi-meter

You should NOT under any circumstances connect an audio input lead to a speaker output jack!
The RCA jacks you are trying to take output from ore "pre fader" which would be solid "line level" and not controlled by volume controls. Tap off the INPUT to the amp... you should be using balanced lines for the interconnects. RCA jacks are unbalanced lines. You can drive several inputs from a line level output of a mixer for example using a splitter cable.

eBay or an electronics component store https://www.google.com/search?q=parts+for+a+harbinger+vari+v2115+amplfier ..

It could be a number of things. Does the head light up when turned on? Are the controls on the channel turned up? Is the master turned up? Have you checked continuity on the cables? Have you tried the speakers with another amp, or the amp with other speakers? This will help narrow down the problem.

We sell this Same PA at the music store I work at, and I know that Any normally open momentary switch will work if it's Not working, then either the switch or cord is defective or we have had to service a few of these, never for that problem tho? So I guess it could be the input jack on the PA ? Hope that Helps?

If you do not have training in electronics you can cause serious damage to yourself trying to fix this. You will need to take this into the shop.

The most likely case is that one of the main output transistors (if which there are many) is shorted. When the protect circuit senses DC on the final output, it will not allow the output relay to come on to protect the speakers from raw DC. With the power removed, you can check between each outputs Emitter and Collector and you will probably find close to zero ohms. From that point you need to unsolder each of the pins of the bad channel until you find the shorted device(s) and replace them.

'pianoforte'

BREV. N. 838420

See page 22 troubleshooting of this manual. It may help you. dd501 (yamaha.com)

Depending on the model, there are four around that date, it could be the insert jacks are tarnished reducing the signal flow between the pre amp stage and digital power amplifier. It could be the power amplifier has failed. It could even be customer error in wiring. This assumes there is the correct level of signal entering the input sockets of course.

Are you sure you are quoting accurately? Could it be one of these instead? http://www.lyrics.cat/lyrics+lead+a+horse+to+water

It's a Line 6 and probably requires a software update from Line 6.

• Price:$1,099.99 on amazon