Hi guys,
I need a service manual/schematics for this amplifier MA3.0
I need a service manual/schematics for this amplifier MA3.0
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Veste/ LED TV Service Menu Code...10-31-2024, 03:58 AM -
Hello all. I dunno if this is the right forum for making this request. If not so, I'll be happy to post this somewhere else.
I have a Minx200 which has several shorted caps. I'm guessing a power source and/or regulator short circuit. I can't find schematics for this device. Any help is kindly appreciated. Thank you!06-23-2024, 04:21 PM -
Hi all,
I have an old Apogee SA400 power amplifier on the bench and need to track down a service manual. I remember being told in the past that these amps were made by Crest and are similar to the CA series but the layout looks very different and there are no PCB markings to help.
Any thoughts or pointers would be great.
Many thanks.
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Well for RF transmitters, transmitting without an impedance matched antenna and if the transmitter doesn't have automatic limiting... kiss the final transistor goodbye and chalk one up to something you killed.
But that's not the same way with audio amps for the most part, well, at least the wavelength of audio on copper is so long that you get all of it back anyway but the transistor is fine with it...
So how are people destroying finals in their audio amplifiers then? Heh.
Are people shorting their outputs or something, overdriving output to a too big speaker?... -
The Problem: This player has a toggle switch to select between Stereo, Mono R, and Mono L. Regardless of the setting it outputs the sound to both the L&R audio jacks. In the Mono R position, the audio output level is normal (from both the L and R audio output jacks), in the Stereo position the audio output is about half the volume, and in Mono L, it's about 3/4 the volume. Something about putting it into Stereo mode is causing the volume to drop significantly and I can't figure it out.
The player processes the audio signal using two different reference frequencies. The "R"...