HI I HAVE HAD MY LITTLE TECHNICS FOR YEARS AND LOVE IT HAVE HAD IT REPAIRED IN THE PAST FOR CD, HOWEVER ALL OF A SUDDEN THE SOUND IS AUWFUL, REALLT HEAVY BASE THERE IS NO BASE CONTROL BUTTON, THIS HAPPENED AFTER A SMALL PARTY WHEN MY BROTHER WHO DOES NOT REMEMBER MAY HAVE ADJUSTED THINGS BUT WE CANT SEEM TO SET IT RIGHT
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Re: TOO MUCH BASE
Try for starters, a different mic, maybe something happened there, maybe some party mix got into it. Other than that might need to figure out what you did tweek on? by getting a schematic on it and looking at the pictorial and checking the marking on the pc board what it says such as VR3 or whatever it is you might have tweeked on and see what it really does according to the schematic. Hard to tweek on something if you dont know what it does. I have never seen any tweeking make such an improvement that it increased power or talk ability to the extent it incresed your range dramatically. It's not worth the tweeking! The only way to tweek on CB's are with test equipment such as an oscilloscope and other gear. Sorry this has happened to you, it has happened to me before. Then I got wise and did it proper with the gear. Still no improvement as power gain to make any difference. Better off using a good antenna system to get more power going out into the world.
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Do you use the phono input or do you have line output . If you have a line output it's possible that for example your technics has a very high impendance, but with technics amp do you use and which phono amp and you cleaned your needle very good ... Does it work good using a cd player .... it can be a lot, so you need to tell your whole system , cleaned the amp inside, especially the potentiometres??????. Gr richard
hello it sound like the output ic may be in trouble you may have just dry joint on the ic which just resolder it . or there could be a capacitor leaking or they may have swelled up in which you will have to replace. it's best to do some visual checks first i'e look for any burnt parts any capacitor with bulging tops
Unplug the units power, unscrew and remove the top. it has 3 screws on the back and I believe 2 in each side. Look to see if anything such as a CD is jamming or preventing the tray from opening.
If there isn't something like a CD physically blocking the door mechanism then the issue could be anything from a slipping drive band a dead motor or something has gone wrong with the mainboard.
The "expected" life of an audio component is 5-9 years. If its past 3 years old its generally not worth repairing as 1 hour labor and a motor for instance would cost you more than the cost of a new unit.
Solved it... Turns out it was the connection between my "Tape Out" on my DA10, and "In" on my (Philips) DCC deck that caused some sort of (ground?)loop. Removing this connection solved my problem. Can't believe it took me so long to figure this out! Anyway, i'm very happy with this, since i really love this amp, and i felt really bad about this sudden weird distortion thing. My faith in the Technics brand has been restored, as has my appreciation for this lovely piece of gear :)
I had the exact same thing with my Technics SU-A808 stereo amp, btw.
anything can be repaired . with enough money and time anyways.. I don't understand why the discs would be getting scratched though.... the only thing that touches the readable surface is a laser. Maybe the unit is just dirty. Call a local repair shop and ask how much to clean it up... I had a CD jukebox with a 600 disc changer cleaned for under $100 not long ago.