Question about Audio Players & Recorders
And the signal sensor light, that triggers if it detects -20db, comes on and stays on even when nothing is plugged into the input.
i'm only using one channel but the problem occurs on both. after it fails both channels are cut...lights are on ... but no signal out.
if i reset it it works again for about 1/2 hr...then again for 15 minutes....then shuts off within 2-5 minutes. if i put a load on it it (play guitar thru it) fails quicker than just a no-load test(nothing plugged in).
nothing feels hot...i've tested with various alesis power transformers and plugged into various rooms and outlets (with a power condition...with a power strip...straight into the outlet...etc...) every situation causes the same failure.
Your internal circutry is failing... it sounds like its happening after it gets warm, which may cause an old/cheap part (or parts, like capacitors) to fail inside. think about how long have you had these items and how much use they have had. As always, thanks for using fixya
Posted on May 27, 2009
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Posted on Jan 02, 2017
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Be advised that the engagement of any device in a Tape Monitor loop on a late-model Audio/Video Receiver will effectively tie the receiver down to stereo-only analog sound reproduction. I'll explain.
The connections themselves are fairly simple but it pays to understand what happens in the loop.
In general, any Line-Level external processor (EQ, dynamic range expander, etc) will go into a Tape Monitor loop on a receiver. A Tape Monitor, when engaged, sends the stereo analog signal Out to the Processor, massages it and returns it to the receiver via the Tape Monitor IN connectors to be passed on to the receiver's internal processes (volume, tone, whatever).
Old school analog stereo-only receivers consistently work this way. Newer digital and audio/video receivers introduce a couple of problems: 1) digital sound processing to simulate a variety of soundfields; 2) multiple output channels, either discrete or digitally-generated.
The latter requires that whatever signal is being processed experiences a maximum of one analog-digital-analog conversion.
EVERYTHING analog coming into the modern digital receiver is automatically converted to a digital signal for internal processing unless you choose a STEREO-only or STEREO-Direct setting. Consequently, no further external analog-digital conversions would be allowed if, say, a Tape Monitor circuit was activated, and a possible feedback loop could otherwise be created in a digital-sourced selection (output to its own input), so the unit is wired to treat the Tape Monitor as the first analog step in the process and defeats any pure digital sources.
In a multichannel unit, what would happen to the other channels if you sent ONLY the Front Left & Right out for processing? The rest would NOT be processed. That logical problem also plays into the decision to defeat digital sources if the Tape Monitor is activated. I don't totally agree with the engineers but that's the way it is. Nature of the digital beast.
Okay, back to the hook-up:
You have to select any available 'tape loop' containing an overrideable analog 2-channel Out and In. That would be Video 1 or Tape on the HK.
Receiver Tape Out (Rec) - to the External Processor (EQ, whatever) Preamp-, Rec, Line-In;
Receiver Tape In (Play) - from the External Processor (EQ, whatever) Preamp-, Play , Line-Out.
So, to sum up, you can only use the EQ or any outboard processor for analog stereo sources. If you actually want to use an analog recording deck you could place it within the typical Equalizer's own Tape Monitor loop(s). Many have two to facilitate equalized dubbing between decks.
The EQ has its own Tape Loop(s) to replace the one it uses. Actual Tape Decks or Processors can nest into those loops and be engaged or bypassed via controls on the EQ or Processor.
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