repair

Hello all! Been working on an Akai GX-636 lately and thought I'd post my findings to maybe help anyone who's facing similar issues. The original issue was that the unit would only play for a few minutes before it would disengage playback. It took me a while to troubleshoot this one, and I...

I have this vintage Magnavox Micro Sonic Turntable AM/FM Radio Stereo Console - believe it is the Barcelona-Astro-Sonic "40" model 1-RP656 I am trying to repair the turntable. The radio and speakers work fine. When I switch to the turntable, if I hold the knob to Auto, it will spin just ever...

Hello everyone. For a long time I've been happy with my Bang & Olufsen Beomaster 4400, but he's pretty old and now it asks for repair. When I touching any input, i.e. Tape 1 or 2, the red "ON" indicator is shining but I can hear the protective relay and there are no sound. Also sometimes during...

I’m a youngin (21) who doesn’t know much about soldering or anything hands on really with speakers, I’ve had a pair of working mirage m3sis for a while and recently the midranges and tweeters were blown so I bought replacement diaphragms for them and replacement foams for the midranges, I was...

I used an electrical cleaning spray on some faders and it has broken one of them. Taking a look inside the fader it seems that the solvent disintegrated the most worn parts of the track at the top and bottom, so the fader just measures infinite resistance between pins, but the rest of the carbon...

A big shout out to MX117.MC7150, because he’s familiar with CD laser issues. Per the topic title, I have a Mac MCD7008 from 1992 and I wanna keep her! But … I’ve been getting the dreaded ERR message of Doom. A tech said, “No chance. No chance at all.” True? SO … I still have a reset to...

Hello everyone! I'm asking for help with repairing a Philips ag2230w. I am trying to eliminate play in the tonearm in the vertical plane of movement. I can't figure out how to disassemble the assembly, meaning how to remove the tonearm tube. Thank you in advance for your help!

I recently acquired a pair of Rectilinear III (111?, 3?) "Highboy" speakers with "MIDRANGE" and "TWEETER" controls on a recessed black plastic back panel. One has serial #44967, the other is missing the tag. I found that one (#1) had no audio from the mid driver and the other (#2) had no audio...

Hi gang, I got an R-117 in for service some weeks back . The main issue was one pwr amp blown to smithereens ( all transistors shorted) BUT the other issue that came up was that the Remote wouldnt command Source selection and neither would front panel buttons ( FM and AM for some reason are...

Long time lurker, first time poster. Picked this up a couple of months ago and have been making steady progress fixing it up. Listing said it "survived" a housefire. I made it my mission to make sure that ended up being true. I got it for about $150 +shipping. I ended up tearing it all the...

So I imported a PD-5000 from Japan and before anyone says anything, yes I understand the inherent risk of shipping these components and it was sold as untested anyways so I expected it would have issues. I have also read the CD player diagnosing thread and I'm still a bit stuck The package...

So I imported a PD-5000 from Japan and before anyone says anything, yes I understand the inherent risk of shipping these components and it was sold as untested anyways so I expected it would have issues. The package arrived fine and well protected, however the unit itself did not have any of the...

So I'm still relatively new to working on these older amplifiers and such but I always want to make sure I get things done right. I've been working on and diagnosing an issue with a Pioneer M-90a I imported from Japan. Evidently the predrivers have failed and everything down the board is getting...

I have an M-90a imported from Japan that looks like it's spent time in a river with how corroded it is, I got it for cheap so it is what it is, but I'd like to see if I can't fix it. The unit powers on but immediately enters protection mode. I have a step down transformer I'm using to power it...

Hey all. Working on a Sony table that is dropping the tone arm pretty violently due to lack of damping fluid. I have removed the little black rotating push rod and cleaned it and the brass plate it puts pressure against and reapplied some 500k silicone oil, but the tone arm is still dropping...

Hello all! This is my first post on this forum after a lot of lurking; please let me know if I should make any amendments to the post. I recently came into a Hafler P500 amp which the seller stated had worked fine last he used it a few years ago. Before connecting it to any speakers I did...

I recently bought a dbx 1bx dynamic range expander and it’s in very good shape but when I plugged in the right channel makes a lot of static and I’ve cleaned all the switches and replaced the power supply caps and it still persists not sure what to do any clues?

So i bought a restored audio system that i mentioned in the title, worked fine at home for a couple months, never had issues everything works even the cassette player, so my problem is that i moved out and took the speakers with me, assembled everything in the same manner and there's heavy...

Hey! I’m currently restoring a Monarch SAT-260X integrated amplifier and I’m trying to track down the service manual / schematic as well as the user manual. I’ve searched around but haven’t had any luck finding them elsewhere. I believe they’re available on HiFi Engine, though registration seems...

Hello, AudioKarma friends. My boyfriend has recently gotten into cassettes (hipster) and purchased a Sony FX-290W Walkman for just under 10 dollars. The seller claimed that the right channel was dead but the device was otherwise in good shape and you can just unplug the headphones slightly and...

First time posting, thanks for having me! Chasing some info on these, have done a reasonable amount of googling with no specific answer so far. I'm trying to figure out exactly what model these Camber's are (see photos). I wish they still had their original stickers! Found them at my local...

We recently built a new system, and we had a pair of Stephenes FR 150 16 ohms speakers that we used and loved them, but recently we noticed that one of the speakers started to have a little distortion. Does anyone know of someone who repairs them? We are in the Los Angeles area. Thanks Observatory1

Hello, I have a 326BEE with a problem that's proving pretty difficult to pin down. The first thing I noticed a little pop from the unit and the left channel went out. The only damaged component I could find was R250, which looked like it had blown, but was maybe just scortched and was still...

Hello everyone, I recently bought a Philips GA-247 turntable and I’m having an issue with the idler wheel arm alignment. When I select the speeds, the idler wheel does not touch the correct part of the motor pulley: At 16 RPM, instead of touching the thinnest step of the pulley, the idler wheel...

Hello My Yamaha RX_V683 has the protection circuitry activated. To search the failure I need a service-manual with the entire schemnatics. Doe's somebody knows where I can find it? Kindly Martin