Question about Technics SU-G75 Amplifier

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Only one input resultes in an output

Only one input results in an output the one that works is EXT John Hope

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John , Those units are KNOWN to have faulty switches. the most common switch it the TAPE MONITOR . try pressing it on and off several times to see if your other channel will come back on. If it does , even for only a second , you should try to spray a good quality contact cleaner such as De-Oxit cleaner. It should fix ya right up.

Posted on Apr 23, 2014

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Posted on Jan 02, 2017

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The sound from my tv will not play through my surround sound.


Make sure that you have your receivers input selector to the correct input that you plugged your tv into. Try plugging the tv output into the working input that you have for the dvd. If the tv still does not work, and you are using a working input, then clearly, there is no workable signal going into the receiver. In tv menu check the audio output format.
Some tv sets output their audio signal in digital format. If you plug that into a receiver with an analog audio input it will result in silence.

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Do you plug the sub woofer outputs to another amp?


Yes, for best results. Your subwoofer should have a seperate amplifier because it has low pass filter that produces low frequency signals. It is done by connecting the sub woofer output to the input signal of the amplifier and then connecting the output signal to the subwoofer speaker terminals. Hope this helps.

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1 Answer

What cable do I need to set up the HD and where do I plug it in? All the ones I lookes at have a rectangular end and I don't see one on the like that on the TV. I am using the 2 scart sockets for cable...


Any of these will work.

ANTENNA IN: UHF/VHF 75 ohm Din type (If in HD Broadcast)
EXT 1: SCART (AV Input/Output, RGB Input, TV Output)
EXT 2: SCART (AV Input/Output, Y/C Input, AV Link)
EXT 3: S-VIDEO (Y/C Input), RCA pin (AV Input)
EXT 4: RCA pin (Vomponant Input)
PC INPUT: D-sub 15 pin (ANALOG RGB), 3.5mm Javk (Audio Input)

Service Manual can be found here: http://www.givemefile.net/smanuals/lcd_tvs/sharp/file/45437.html

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Check that the input video mode for s-video inputs is AUTO or S-VIDEO.
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Hey, it seems you have a faulty inclosure.

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1 Answer

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EXT means external input,i.e.from an outside or alternate source.

That source could be a DVD / VCR , cable box, video game,etc.

2) New dvd/vcr recorders allow A / V inputs only,usually obtained

from a source box ( cable or satellite ) They do not have coax cable input/output,also known as RF in/RF out.

3)The dvd/vcr manufacturer expects the consumer to upgrade equipment periodically.If your TV or A/V receiver ( surround sound) has a video monitor output,problem solved!

 

Hope I helped you ......T.

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2 Answers

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Go into the service menu using the remote (hit the sleep timer, then video status and display at the same time), go into the status menu #2, then power off the tv. This will reset the HDMI port. If your sitll experiencing the issue, probably a dead board.

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