Out of the blue, when I turned it on this morning I got no sound. Normally the power light blinks for a few seconds and then - sound. Now the power light continues blinking and there is no output. It's a beautiful piece of equipment and I hope I can avoid replacing it.
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Re: circa 1980 nakamichi tuner amplifier TA-3A
Anything branded Nakamichi is worth repairing in my opinion. The problem may be something quite simple, or worst case a blown output stage. First check that there are no problems with the speaker wiring or speakers. This can be done quickly by disconnecting the speaker wires and see if the unit fires up correctly. If it still shows the protection mode by blinking power light, then it will need some repair work done. If you are not versed in electronic repairs, fault-finding or soldering, then i suggest looking fpor a repair guy. Contact your local HiFi specialist retailer, They always know who you can trust to look at it for you, if not take it on themselves. Good Luck.
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If you are trying to connect a ribbon cable tuner to a conventional RCA input terminal amplifier, it won't work because the ribbon cable carries the signal output as well as the data for frequency synthesis which is determined by the processor located in the amplifier ( that is supposed to work with that type of tuner), and the data buss for the buttons on the front of the tuner.
For the time and effort to put into a workaround, it is cheaper by far to get a tuner that will work with your amp. If cosmetics are not an issue, brand of tuner will not matter as their outputs are "Line Level" or nominally 1 volt peak to peak..
All i did was mess with the REM wire, and found out i had to hook the REM wire to the blue/white wire on the deck. Instead of the blue/white wire, i had it hooked up to the solid blue wire on the deck which was preventing my amp from playing on CD.
an amp of this size generates alot of heat internally when in use as these use mosfet ICs and can get very hot. your problem is most definately dry solder joints and possibly quite a few at that. i've repaired quite a few sony surround receivers with similar problems and have all been down to dry solder joints.
The flashing light is indicating that a fault has been detected, and it is staying in "protect mode". First disconnect all cables from the processor (except the power cord) and then power up the processor. This will eliminate the possibility of a shorted cable or a problem with any connected components. f the light still flashes, there is an internal problem and the processor will require profesional service.