Question about Technics SC-DV290 System
I have an old Technics SC-CH550 stereo system (separate units of CD, Tape, Graphic EQ and Amp but sold as one stacking unit) and when I connect it up and turn it on, only the amplifier unit comes on.
Could it be the flat connector lead (four heads on it in total) or something else?
I've tried connecting it up different ways around just to check I hadn't done it incorrectly
If it is the lead, does anyone know where I could find a replacement?
SOURCE: Technics sc-dv290
I'm currently working on a solution fot this problem and will post my results as soon as I succeed. I have got the ribbon cable but having trouble getting terminal that matches the back of the system.
Hope to have some news soon after the weekend
Posted on Jul 09, 2008
SOURCE: TECHNICS SC-CH550 STEREO SYSTEM
I belive that you have a lot of dust how is gatherd behind the system in the amplifier and it is preventing it to cool down you need to blow it clean and make sure that you keep the system gets cool air
if the temp in the amplifier gets to high it shut down the system instand of burning it very clever solution from the manufacturer
you have a very good system good luck
Posted on Mar 15, 2009
Posted on Nov 17, 2015
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The following is some boilerplate I made up that should explain some usage limitations.
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? They 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:
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.
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
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