I had volume at about 65/70% and it went to overload. Is there a reset circut bteaker on the inside if I take cover off. Other than that I love my Technics SA-EX 140
SOURCE: OVERLOAD MESSAGE
get a manual for ex-140 here
http://ec1.images-amazon.com/media/i3d/01/A/man-migrate/MANUAL000031494.pdf
or try ( i didnt check it) for ex-400 "Unsorted Technics Service Manuals" at
http://www.user-service-manuals.com/technics-service-manuals.htm
SOURCE: Technics SA-DA10 jumps into overload after 10 minutes
Have you tried connecting speakers? What was the result?
Yes, when you turn the volume up on these amps (or when the output gets past a certain level) the cooling fan should automatically come on.
SOURCE: Overload on Technics SA-AX710 Receiver
u can measure the speakers impedance, if is ok. I think this can be a problem, when is speakers with 4ohm conected.
SOURCE: Overload on Technics SA DA10
Cracked solder joints due to excessive heat cycling. Do not place in a shelf system. Top MUST be open for 1 ft. or better for proper convective cooling effect. Mine suffered same fate but repaired locally.
SOURCE: Technics SA DA20
I have a Technics SA DA20 control receiver. I was given it by an electronics workshop and it has this same error of OVERLOAD coming into the display when switched on. I removed the plates from underneath and re-soldered as far as I could all the points along the stereo amplifier ICs and as far as access would allow. The unit then worked normally for several hours. I was very pleased, and went out shopping!. But on my return after it had been off for about an hour, the same problem has come back. But my boss at the electornics workshop thinks it it just a dry joint, or series of dry joints. The unit is complex to dismantle, so patience and care is required in taking it apart and making a note or diagram of how it comes to pieces and how to re-assemble it after the board has been re-soldered. It does not appear to be a component problem or fault with the SVI power amplifier ICs.
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