no sound

  1. triplegee77

    SX-550 with factory transistor installed incorrectly??? AF Muting Board

    Are my eyes/brain completely shot, or is this factory transistor installed incorrectly??? I have no sound output but all test points measure correctly (and I triple-checked all of my work). This is Q3 on the AWM-101 AF Muting assy. When I measure voltage on what should be the collector (per...
  2. richardg0n

    Marantz 2325 No Headphones and No Speaker Terminal Output but Relay Clicks?

    Hi Guys, I am working on a 2325 restoration, and I can't figure out why the speaker terminals have no output, nor do the headphones. With a DBT connected the protection relay clicks two seconds after powering up. I am using my signal tracer to follow a 1k tone running through AUX and can trace...
  3. I am simone

    Car stereo not producing sound

    I don't know a lot about this kind of thing, but i recently purchased a car with a nice sound system that worked at the time. The car has has a lot of battery issues and at one point when the car died, when it started the front two speakers didn't play sound. When it died again, same with the...
  4. A

    Sherwood R-945 Receiver PROBLEM!

    Hey all, New Here, New to working on receivers. I have a Sherwood R-945 that will not produce sound expect for a tiny bit at Full volume. It has done this intermittently but now its really broken. In the past i was able to turn it on/off/unplug/replug and get it to start working. Now it turns...
  5. D

    Troubleshooting Sound Issue with Technics SA-6000X Receiver: Sound Fades Out After a Few Seconds of Use

    Hi, I have a Technics SA-6000X receiver that has stopped working after a power outage. I replaced some burnt-out fuses and the receiver now turns on, but the sound only works for a few seconds before fading out. Prior to the power outage, I had lost the front left channel and attempted to fix it...
  6. S

    Technics SU-V98 quit working, screen displays weird, cannot select input, no sound

    I recently acquired a Technics SU-V98 to accompany my SL-B3 turntable. It has been working great for the past couple weeks until last night. When turned on, the screen displays randomly or not at all. None of the input selectors light up, and I am not getting any sound. After a minute or so, the...
  7. Stereoboy70

    Sansui 4000 issues.

    Hello all. Been awhile since I’ve posted. I’m having some issues with my 4000. No sound from any inputs, AM or FM. I rebuilt both amps (1150) the EQ board (1169) preamp board (1149) MPX board (1185) protection board (1176). New caps and new transistors. Also new filter caps etc.. The...
  8. F

    Sansui AU-317 turns on but no sound

    A few weeks ago I bought this AU-317 MK 1off eBay however when it arrived there was no sound coming out of it. Went back and forth with the seller and ended up keeping it at a significant discount. I've checked all of the audio inputs (AUX and Tuner) and channel outputs with no success of...
  9. X

    Sansui QRX-9001 no sound in rear left channel

    Hey all ! looking for some help on this one. I have a hunch it may be a bad output transistor on this beautiful piece. The front two channels work great in 2/4 mode/ 4 channel mode works great front and rear too but when engaged the rear left channel doesnt work at all. The power meter only...
  10. B

    No sound from my IA 2232 amplifier

    Hi - I hope I can get advice. We purchased a Marantz system in the late '80's and it gave us many years of good service. For the last few years it sat unused. We recently relocated and I want to get it set up in our new digs. When I hooked if up there is no sound. I tested the speakers (not...
  11. G

    Adcom GFA-565 Issue

    I have 2 Adcom GFA-565 Monoblock Poweramps and while both turn on having power, they are not delivering any sound to connected speakers. The speakers work properly as well as the cables connecting them function. Also, there's no "pop" noise when turning the amps on from the speakers connected...
  12. James Cox

    Marantz 240 possibly blown

    So my friend called me up today and was very distraught. He purchased a Marantz 240 and 7t preamp a few months ago and was experimenting with some separate phone preamps he had. The problem came when he was switching around the phono preamps with the amp and stuff on and accidentally hit the RCA...
  13. V

    Marantz 2285B right channel issues

    Hello AKers ! First of all, sorry for my bad English, I'm a French guy looking for some help with my Marantz 2285B ;) Here is the problem: In "Phono 1" mode, with my L100 Centurys hooked, I have no sound in the right channel... The weird thing is that it doesn't do it all the time... - If I...
  14. ocdecio

    SX-1250 - no sound on preamp

    Working on my first Pioneer. I repaired both driver (power amp) cards and that section is working great. Stabilizer card has +-65V. However when I connect the jumpers on the back, or put a scope on the Pre-Out I get nothing, zilch, on either channel, on any input (FM, AM, Phono, Aux etc). I...
  15. I

    Onkyo TX-21 only has sound thru headphones

    Onkyo TX-21 no sound through speakers, but does have sound through headphones. It was working fine the other night. I checked the 3 removable fuses, and they were fine. Is there something that may need cleaning or checked? Thank you.
  16. dtone

    Suggestions for no sound from effects unit

    Reached a troubleshooting dead-end (for me), so hoping to get some advice. Initially thought it might be a muting circuit problem (see other thread), but no dice. Problem: Reliable 1990s era Roland GP100 unit that recently stopped producing sound from any of the outputs. Functions properly in...
  17. D

    Marantz 2226B - Lights Up, No Sound

    Hello all...I'm new to site and also new to vintage equipment collecting and restoration. I recently acquired a Marantz 2226B. Plugged in and turned power on. All lights came on but no sound with any of the inputs. FM tuning and signal strength meters both fluctuate when tuning dial is...
  18. dtone

    Audio Muting Circuit Question

    Hello - New guy here. Great site with great info, so figured I'd seek some assistance. I'm not an electronics tech/expert, but have basic knowledge/skills/tools and ability to learn. I have a 1990s era Roland GP-100 effects unit that stopped producing sound and think it might be related to the...
  19. meako

    NAD 7175 Left Channel No Sound

    Preamp section seems to working. All connections and pots cleaned with contact cleaner. Power section seems to be the problem. I used a NAD 7150 preamp section to test. Right now the right channel sounds clear with no distortion. Left channel is just completely silent, even on headphones. I hear...
  20. liam rtr

    Need help!! No sound in left channel on Marantz 2245.

    So I turned on my Marantz 2245 the other day after it had been sitting for a couple of months. I played some music for a little bit out of the auxiliary input and it sounded good. The next day I tried to play a record through the phono stage and there was only sound on the right channel. I...
  21. reverend13

    HH Scott 299D - Power But No Audio

    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...
  22. V

    Help - only hissing sound from speakers

    Was playing music on MA6100 for an hour or 2, suddenly the music stopped and I could hear only a loud hissing sound from both speakers. All I could think at that moment was to run and pull the cord from power socket. Once I did that, the speaker hissing did not immediately stop. It sort of...
  23. icutfilm

    Harman Kardon AVR 55 No Sound?

    I was given this Harman Kardon AVR 55 but can't figure out why I am not getting any sound? I've tried all the functions, turned off surround mode, tried listening through headphone jack? All lights appear to function. Any suggestions?
  24. Juan-Jose

    Optonica SA-5605 Help

    Hello! I have this beautiful Optonica SA-5605, turns on, clicks out of protection (indicator turns green) but I get no sound. Called a local tech to take it for repair, and he said that he only does "major brands". So, I bought the elusive service manual (it is different from the...
  25. JB8

    SONY TC-366 No Sound, No VU Action

    Great people, I have a SONY TC-366 with newly installed belts and run capacitor, functions engaging nicely, but I'm getting no sound when using headphones to monitor known good reels, also not getting any VU reaction. When plugging source into AUX in, not getting any sound (or VU reaction)...
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