I have this premier power amplifier that doesnt have any output. And i really can use help with this one. The power supply is functional, no shorted outputs.
No if i hook a speaker up to the amplifier and touch an rca to the shield i can hear something.
But no audio to a speaker is present.
No if i hook a speaker up to the amplifier and touch an rca to the shield i can hear something.
But no audio to a speaker is present.
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Amps with this type of speaker plug had a significant problem with breaking traces. Are they OK in this amp?
Does your signal source have a grounded shield?
Does your signal source have a grounded shield?
Ill check them.out perry. All i got to was the signal is going into the daughter preamp board checked the regulated and rail at the output transistors. Seems likely its the problem. Ill pull the board and check, but i do get a feed back type niose emitted, so i was leaning towards an opamp problem somewhere
I believe the problem. Is somewhere in the muting curcuit. This amplifier is oscillation and has rail and regulated voltage present. And some type of audio comes out of the Amp. I can see my 40htz at the speaker terminal and the outputs only can not hear it on a speaker.
Does your signal source have a grounded shield?
Did you pull the board to check the connections? 5v should produce a relatively strong output.
Did you pull the board to check the connections? 5v should produce a relatively strong output.
Yes grounded them together and same result only thing I get is a static burp when I touch signal source ground to the one of the ground points. Just no audio passing
With the waveform you posted, audio is clearly passing through the amp.
If you touch one speaker with the the emitter resistors for the outputs (one with the signal you posted) and touch the other speaker wire to the ground terminal, do you get audio?
If you touch one speaker with the the emitter resistors for the outputs (one with the signal you posted) and touch the other speaker wire to the ground terminal, do you get audio?
i tried that first with no success, so started signal tracing and accidentally grounded leg2 of Q101 with my scope and the audio started working so i started there
Pioneers sometimes have signal ground problems but those amps don't produce audio. The waveform you posted was clearly the amplified version of the input signal. I don't see how the amp could produce the waveform you posted and get no audio when doing as suggested in post 11.
Did you try it on a channel producing the signal you posted?
Did you try it on a channel producing the signal you posted?
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