Then start disconnecting the speaker wires,one Speaker at a time. Home theater questions? friend's Yamaha RX-V520 5.1 receiver won't power up by the switch on the front or the remote. The amp turns on but I get no audio. An amplifier usually does not start if there is a short in the audio power output stage because most amplifiers are designed to go into protect mode that prevents the high voltage transformer from receiving power. Thing sounded so sweet. When it's pushed to mono the sound comes out as it should, when pushed to stereo it works for awhile, then the right speaker cuts out. Hooked up a few pedals, let my kitten purr in standby for a good 15. Freakin’ out boys. The instrument volume is sufficiently up. A quick look inside shows everything looking OK - fuses are also fine. The complaint was no sound but have power. Got louder. The problem I'm having is with the stereo/mono button. Hi Matt, If the only connection between the Echo device and your stereo is through Aux input, Alexa won't be able to turn the receiver on and off. There are ways to make that happen -- adding a Harmony Hub to your setup comes to mind -- so I'll forward … Fuckin’ thing started hummin’. Usually the first thing I do was to connect a speaker at the output jack to see if the sound really not present. I have a old amplifier it's a Sears LXI series Model AM 4023. Most of these issues can be solved by the user, for little or no money and using a 'process of elimination'. Ask a technician for answers ASAP. The amp volume is sufficiently up. ... you start with power off (presumably already is, since it won't turn on) p0llinate : Then press and hold the speaker a/b buttons, while pressing power on. A customer of mine brought to me the TAC Integrated Stereo Power Amplifier With the Model of AV-355 for repair. Repeat until Everything is disconnected from the AVR. I noticed when it's like this the left speaker tends to go in and out really far when I turn the volume up and down, pushing alot of air out of the port. If none of the above steps help, you may well need to go ahead and get creative. This function therefores protects the audio power output stage and its power supply rails. There is no display on the receiver or amplifier LED screen. Now it won’t turn on. Another test is to check the output DC voltage at the speaker output jack. Rev’d up and ready to roar. Boys, got a killer Fender Deluxe Reverb ‘68 reissue. Try to turn it on. These are some of the more common Stereo System Repair issues we get emails and calls about after 30 years. It it still won't power up then, it is probably dead. Applicable Products and Categories of This Article IMPORTANT: This article applies … Try to turn it on. Shut off. Home Theater-Stereo. STEREO-AUDIO REPAIR DIY / QUESTION & ANSWER HELP Stereo Equipment / Gear Issue Troubleshooting Q&A. The instrument is properly plugged in at both ends. Starting with the cable box. The amp is properly connected to the speakers/enclosure. The building does have sufficiently working electricity. I have an amp rack for power amps for my sound system with two power strips.