no audio

Hi, I have some experience with electronics but I'm new to fixing vintage receivers, I have Luxman R-1030, and no audio from any input. When in AM/FM mode I can see the tuner is working, 10mV DC offset, no burned elements, I can trace the signal past volume control. I think I'll recap the power...

Greetings everyone, I have a Sansui BA-3000 I bought with issues. I tested it and realized that the RL02 relay was not functioning and decided to replace both relays on the (F-2511) protection board. I then realized the cermet resistors (R01 and R02) were burned up. I replaced them and the new...

Hey gang! I picked up a 1977 Technics 5170 a few months ago. Looked and sounded great! Then one day about a week ago all sound on the left side went out completely: front speakers (Advent Laureates), rear speakers (Baby Advent 1’s) and even headphones. There’s a weird smell and the center of the...

Hi I have a Tascam TSR8 the audio was fine and now there is no signal coming in, no vu display of audio, and no audio playback. Everything else works as usual. Any ideas? The only problem I had previously is the tension arm on the supply side sometimes is jerky. I removed the front panel to...

Hello AK, I am in the process of restoring a Marantz 1200b, the unit came in dead and would not even power on. I have recapped the entire unit and replaced the relay and resistors on the relay board. I only have 51.4v +/- and the relay will not engage. No shorts on the drivers or outputs...

My apologies in advance as I'm a novice at this yet would love to learn, so I appreciate any feedback :) I have an early-model 299D that powers up and tubes light up, but no sound is coming out of any inputs (also checked cables and speaker connections). I'd appreciate any troubleshooting...

Hey guys, I re-capped and changed all the transistors on a SA-9500 and I am getting no sound output. The relay is clicking, but there is no sound on either phono inputs and aux inputs. I have changed the seperated/normal switch, too. The bias has been set, the 20mv dialed in fairly easily...

I recently got a hold of a mint Fisher fvh-950 VCR. It's a top of the line unit, and one of the best build tape players i've ever seen. The video quality is also top tier (for a vcr) but there is no sound, not a whisper. I feel like the audio is just turned off or muted. It has Level meters on...

Hi, I have a 10yr old 42" LG plasma tv. Problem is that after about fifteen minutes of running fine, the audio drops out and after about another fifteen minutes the video is gone. I can hear a faint whining. Power it off then on, it starts working again and then the whole cycle repeats. There is...

The short version: I have a Realistic STA-820 that powers on but makes no sound. Anyone have any basic troubleshooting ideas? Some more details and background: I bought it used earlier this year and everything seemed fine, but after some time I noticed that one channel was quieter than the...

New to this and not familiar with this amp so I could use some help please. This is my friends amp and it has been setting for a few years. There is no output other than static and the occasional popping sound from the outputs. The left side is worse than the right but no output from either...

Hey guys, so I recently got a Marantz 4300 to fix up. I havent worked on a quad unit before so any advice is appreciated. As you can see the front is very very clean, but the tuning needle is broken off as well. From the outside, you wouldn't think much was wrong but the inside is telling me a...

Good evening, I have a Rank Arena Audio System 3000. It is a 3-in-1 tuner, cassette recorder, Garrard Turntable, and of course, amplifier. The system has been out of use for a number of years. Unfortunately, today I tried to power it on, and while it did power on, all I got from it was a...

This will be the 3rd Marantz time I've had this problem on personal units. If you have something similar happening when playing your unit and it is driving you nuts you are not alone. It seems like a simple issue at first glance. You're thinking it stems from a dirty switch, push button or...

I recapped this 2250, and all was well except for the phono section. I didn't have a signal generator with low enough output to not overdrive it when I first went through it. I left it as it was, using everything else just fine for a couple months, then I got a proper signal generator that...

I recapped this 2250, and all was well except for the phono section. I didn't have a signal generator with low enough output to not overdrive it when I first went through it. I left it as it was, using everything else just fine for a couple months, then I got a proper signal generator that...

So, I have these 2 nice RANE ME 30 Graphic Equalizers that we no longer used in a Theatre and neither of them are passing any Audio! Both pass audio only in Bypass mode. All LED's and buttons on the right side seem to work. One of them has an overload light permanently on. Otherwise their...

I am trying to hook up a pre-wired speaker system. I have a pioneer receiver and bose box. I can only get three speakers on the surround sound working. The two that are not do make sound when connecting a AAA battery but don't providr sound when I hook them up to the BOSE. When I started I...

Hello, I'm new, this is my first thread, so I hope I do this right. I'm 66, an old musician familiar with tube amps, and I'm working on a NAD 7140 receiver with no sound. I've heard great things about this forum and NAD gear, and I've already followed some suggestions for trouble shooting and...

Okay, so I have a ton of Marantz stuff, I love it, but every now and then I stray. This tine it is an Optonica SM 3205 amp. Optonica was Sharp's attempt to compete with the big boys in the 70's. I have a 4646 and it is built like a tank with three power supplies (one for each amp and one for the...

Hey Guys, I just got a 5025B cassette deck and although very dirty, it seems to mechanically function after I cleaned it (FF/REW/Play). The problem is no audible 'play' output. I get no meter deflection and can barely hear the tape with the amp volume almost all the way up, but it is there...

Hello all, my name is Will. I'm not sure of the rules around these forums. I'm not even sure if I'm posting this in the correct spot. I hope that the moderators would move my topic if it's listed incorrectly. I've got some problems with one of my vintage receivers. I'm inclined to learn...

Hello! I am new to AudioKarma, and relatively new to vintage audio equipment, so I would appreciate any insight you all might be able to offer. I have a problem with static and popping / no audio in my system. I've isolated the problem to the receiver, which is a Pioneer SX-727. The receiver...

Hi folks, I'm 100% new to any sort of even semi-serious audio; I haven't had an amp/tuner with good speakers... ever. I've always used computer speakers of some sort plugged into, well, a computer. I loved the old Sansui amp/tuner, tape deck, and record player we had when I was a kid, and...