Technics SU-V98 No Sound

google SH-8057 manual


https://www.hifiengine.com/manual_library/technics/sh-8058.shtml

That sounds suspiciously like an issue with speaker connections rather than amp output!

There are manuals and specs here including a Service Manual

https://www.google.com/search?q=technics+su-x840+user+manual

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Use RCA cords and place between the turntable and amp. The amp is clearly labeled PHONO.

The first thing to do is check the connection to the TV. Is the right output from the TV actually connected? Check your cables from the TV to the amp.

Your amplifier is turned on and all the indicator lights work and you made it sure that all the cables, and cords are attached to where they are supposed to be connected and yet you don't get any sound coming out when you play a music. Amplifiers have selector knobs for you to set where your source is coming from. Selector knobs can be set to TUNER, DVD, CD, and AUX. The scenario might be like this: your source is coming from a movie being played on your DVD player connected to your amplifier but your knob selector is set to AUX. Try playing a music selection from your CD player attached to your amplifier and set the selector knob to CD. If still there is no sound coming out you need to have it checked by a qualified technician.

You can make it by yourself. All you have to do is to shorten a pair of RCA cord to about 2 inches and then plug them into the
shorting pins hole.

get audio cord or use yellow red white in for audio sound

The most common cause of this is defective coupling caps inside. These allow some DC voltage to pass through to the final amp stage. This DDC voltage is detected by the protection circuit and the unit shuts down. This unit will require service. Please note that this should be a simple and inexpensive repair. The cost should be less than $10 for parts.

Dan

The power amp section is bad or in protect mode.(shorted speaker wire)
Paul

Make sure it is not on mute. Check rear of receiver to make sure AUDIO IN has not become disconnected. Check input selector and verify that it matches the audio source.