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Re: Technics amplifier 101 (I think)
This series of amps made quite a splash when they came out. Worth putting some funds and effort into getting going again at least. The on/off nature of your problem tends to point towards dry solder joints in and about the output/power regulation stages causing the amp to go into protection mode.
If you have decent soldering iron skills, remove the covers and go about blanker re-soldering any areas that have cracked or crystalline solder joints. Especially if the PCB has browned, good indicator of heat. If you are not much of a gun with the iron, try around your mates. This sort of repair would normally not cost you a lot of money.
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I have the same TECHNICS SU A900 MKII as you are talking about and it always runs warm I think using 4R speakers instead of 8R speakers should solve the problem and actually I am thinking of switching to 4R as well.
Let's establish which is the IN and which is the OUT here. The PC is a Line Level source so its OUTPUT would feed one of the amp's Line Level INPUTs.
What's the second amp going to do in your scenario? Something other than the normal stereo channels; something multichannel (if your PC supports it); or just more speakers supported for the PC to feed?
An RCA Y-connector pair would share the stereo output of the PC with multiple Line Level destinations.
If a second amp with its own volume control is intended to share the same two channels with the SU-V500 it could also be slaved off the back of the SU-V500 wih an RCA patch pair exiting the Tape 1 or 2 REC(OUT) jacks. The second amp would receive full-volume audio from whatever source the SU-V500 is playing. Just don't activate the selected Tape monitor on the SU-V500 or you will cut off the source to both amps.
puede ser un problema con la fuente de poder de la planta,con los parlantes,con los cables y terminales que conectan los parlantes con la planta ,puesto que la mayoria de amplificadores tienen control de temperatura y al sobrecalentarce se apaga por protecion y por eso ensiende por un rato y despues se apaga, por favor revice que los parlantes y los cables con teminales esten bien y no esten aciendo contacto
yes you can connect another cd player to the DAT input of your amp. input connections like DAT, TUNER, CD, AUX etc (except phono) is just to differentiate between what sources are connected, the amp cannot tell what source is connected and will output the sound no problem.
as for the remote operation, if the 2 technics cd players are switched on at the same time they're going to do what you command from the remote together but you'll obviously be listening to 1 at a time.
Why don't you try using the main outputs (the 2 XLR connectors). With 2 cables connect these two (left - right) outputs at your amplifier's aux in. In that case take care that the "output level" of the mixer works like master volume controlfor the signal that the mixer sends to the amplifier.
In case of a problem or clarification, don't hesitate to post.
Thanks and regards Please kindly rate this solution Stelios
Is the aux imput for tape or cd only? Or is it a dedicated phono imput?
If it is for tape or CD only it won't work has the cartridge from the deck needs a magnetic pre-amp.
If the amp doesn't have a phono imput you can get a pre-amp for cartridges from your local electrical shop. This will plug into your deck and then into the socket of the amp.
If the aux on your amp is a phono socket, assuming the record deck is working, then the pre-amp (inside your amp) for the cartridge has failed. It generally is located near the imput socket, chances are it will be single IC. It's a fair bet the IC will have failed, they tend to be static sensitive types prone to fail at the drop of a hat!
actually, chrysler/dodge has factory Infinity sound systems installed. The nice part about these systems is that you dont have to bypass the amplifiers in order to put a new radio in, but simply power up the amp by hooking up the amp turn on wire at the harness. The alpine should have 2 blue wires coming off of the back, one that is solid, the other with a white stripe. The one that is solid only has 12v when the fm/am radio is on (used for power antenna) but cuts off when other sources are used (cd,aux,ipod). My guesses are, you have the amp wire on the vehicle harness (blue) tied into this wire, instead of the BLUE/WHITE wire on the alpine which has 12v as long as the radio is on. i hope this solves your problem, 9 times out of 10 on a chrysler this is it.
The problem is the fact that the new receiver has no phono input. The phono input has an extra stage of amplification built in. Your receiver is working fine. You need to purchase a phono pre-amp. These run around $20. Connect the turntable to the preamp and the presmp output to any line level input on your new receiver and everything will work as expected.
Hi There, you need to eliminate all the connection and surplus items around the SUV-460 amplifier to determine if its the amp or not..
That is disconnect every thing then connect just the speakers and an input to the amp like a CD player or radio input. Then see if the amplifier plays OK thru the speakers on both channels and the balance control works fine....If it doesnt then the fault is inside the SUV-460 but if it all works fine than start reconnecting theemixer panel carefully and recheck all your cables and connections. Its a process of elimination to determine if its a "Box" fault or a cable fault...