![no sound audio overload no sound audio overload](https://cerebral-overload.com/wp-content/uploads/2017/11/MinfortTT8_07_preview.jpeg)
I then noticed on the schematic that Q651, Q652, and Q653 look like they all need to be triggered to close the relay drive circuit to ground (I could be totally wrong here in my assessment). It didn’t click on before either but I figured that was because the 601 was missing and pin 15 seems to drive that output. However at this point, the spkr relays don’t click on. I soldered it into place and turned it on and no OL. Since all power modules are the same number I thought I would try the 651 chip (center channel) in the 601 place to see if it really did go away.
![no sound audio overload no sound audio overload](https://ae01.alicdn.com/kf/HTB1cWg8ajzuK1Rjy0Fpq6yEpFXab/1-Pcs-12V-Car-Truck-Audio-Resettable-Fuse-Circuit-Breaker-Audio-Amplifier-Overload-Protection-Fuse-Holder.jpg)
The OL didn’t come back after the amp was on for some time, no spks connected, and in tuner mode like before. I suspected it might be faulty based on what I had read so I pulled it out and tested with 601 missing. I re-did some of the joints on IC601, and same problem. The IC602 was replaced under warranty years ago and I could tell the solder points were different and pretty healthy. Since the OL would come on after some time of being ON (no spkrs connected and in tuner mode), when it did go into OL, I pushed on the heatsink and the spkA relay would click back on as well as the fan turn on briefly (about 1 sec) and then turn back off and the relay clicked back off). I read about the solder joints and how they can become bad over time due to heat and board stress. I wasn't able to find a DC offset, if I measure between pin 3 and 8, and 6 and 8 of the power modules (IC601/602/651). The terms measure 20-30kOhm between +and - of each terminal.Ĥ. Spkr terms are not shorted - spkrs aren't even connected. haven't checked the cooling fan circuit yet as I don't have proper probes to reach all the little tiny spaces where the transistors are and dont want to accidentally short anything out while it's ON.ģ. Tested fan with a 12v battery and it turns on so that seems to work. DC offset on output lines (pins 3 and 6 of power modules)ġ. I was able to find that the common cause of OVERLOAD was either:Ĥ. I figure that's probably the gnd I should be referencing, but I could be wrong. I checked both chassis ground and points that the power modules (IC601,602,651) are connected to on Pin8 (gnd). Although I am a bit confused as to what the voltages are in reference to.
NO SOUND AUDIO OVERLOAD MANUAL
I did manage to get my hands on the service manual for this specific model so I have some schematics and some voltages to check. It was mostly other models but it looked like they shared a lot of the same components and design so I was mostly extrapolating to understand how the different circuits worked and tried to apply it to mine. That'll be in the next update.įWIW, I am currently looking for a new job (damn COVID-19) and while I do that my focus is on projects with revenue potential.I am new to this forum and I have found some good advice and information already on troubleshooting my technics amps for this OVERLOAD condition. I've just hooked up the '/' key to restart tracks. The arrow keys are reserved for moving up and down the playlist. So many OS X apps got broken in 10.12+ with that (especially DVD Player, which won't remember the last used folder unless you access the open file window while the app is not using fullscreen mode). Any chance of getting those arrow keys back, or at least the "/" key that used to restart tracks? I like that this version fixes the open file window not remembering the last used folder. I noticed that the key mappings changed from the arrow keys to the keys, and there is no longer any key mapped to "restart track" (you have to click it with the mouse now). Will display a warning and are unlikely to do anything. Please note that AO currently only supportsĪY8910, SN76496, YM2413, and YM2612 chips for VGM files – files using other chips * Added support for a second SN76496 PSG (some arcade titles) * Added support for the AY8910 (CPC, MSX, ZX Spectrum, some arcade titles) Various improvements to the VGM playback code: The result isn't perfect yet but it's much closer to the real thing than in the past. Overhauled the Orchestra-90 playback code.
NO SOUND AUDIO OVERLOAD MAC
Rewrote the Mac front end using Cocoa/Objective-C. Steps for reproduction would be very much appreciated also.Ĭhanges over the last public release eleven years ago are:
![no sound audio overload no sound audio overload](https://i.ebayimg.com/images/g/yCcAAOSw5k1cnYmF/s-l300.jpg)
If you notice any problems with this other than the above please let me know. There’s no way to close a file after you open it.
NO SOUND AUDIO OVERLOAD CODE
There are two known issues in the current code that I will resolve before a release: I’m pleased to report that Audio Overload for Catalina is now ready for beta.