Technics Audio Players & Recorders - Page 4 - Recent Questions, Troubleshooting & Support

Your best bet is to get a spray that is called deoxit gold for cleaning the volume control potentiometer. You have to disassemble the case to get to the internal portion and it could also be a bad solder connection on the board the control mounts to.

Faulty laser I expect.

Fuses should be tested - not assumed to be "fine". Check power switch for electrical operation. Check for broken/defective components.

That sounds suspiciously like an issue with speaker connections rather than amp output! There are manuals and specs here including a Service Manual https://www.google.com/search?q=technics+su-x840+user+manual ..

part number is rak-ch729wh https://www.emerx.eu/technics/technics-rak-ch729wh-se-ca1060-replacement-remote-control-same-description-as-original/ https://remotes-world.com/products/technics-hifi-rak---ch-729-wit?variant=4280429₪cy_id=11&roistat=merchant8_g_44472057049_online:en:AU:454658&roistat_referrer=&roistat_pos=&utm_source=google&utm_medium=cpc&utm_term=&utm_content=v2''326773573121''pla-294505072980''''44472057049''807469164''''g''''''pla''112912875''online''454658''AU''en''294505072980''''''''c''294505072980''1000481''''&gclid=CjwKCAjw64eJBhAGEiwABr9o2Mbdu2zJnfFelHlIgMELup8yVxq8VRpo_H3qCyHAEaj0CbqFJs1WPRoClUEQAvD_BwE https://www.remote-control-world.eu/rc-for-audio-hifi-technics-c-12_876/technics-rak-ch219wh-remote-control-duplicate-p-10719?currency=AUD&gclid=CjwKCAjw64eJBhAGEiwABr9o2I_T8xe7ftnoQ-HtoCPiWB5KfXims5YtefVci-6LiJigUDqdkSmpvhoCE8MQAvD_BwE

CD players have plastic gears. The gears can be stripped if someone has pushed the tray instead of using the open/close button. If you hear grinding noises, more than likely the player is shot. Sometimes pushing eject and tapping on the tray at the same time may pop it out. I don’t think a reset will work in your case but it’s worth a try.

Belt?

The right amplifier channel is defective.

I was struggling with the same problem with my friend piano. You need to replace check module which is plugged near power transistors. I found two bad transistors g109 and q119 (2SA1015). Changing those transistors and remaking soldering joints solved this problem.

This is hard to diagnose without special equipment. At the very least you need an OHM meter to test the speakers to see if they are ok. Beyond that you can use headphones to see if there is audio output. Other than that you need an oscilloscope or other visual diagnostic gear to check the amplifier.

The service manual can be ordered

hw would we guess some things require hands on to test and fixya does not have the capability

Q-TIP AND RUBBING ALCOHOL

YOU NEED TO ASK GOOGLE NOT FIXYA

Make sure your speakers and speaker wiring is the correct impedance and not shorting. Ensure there is plenty of clean fresh cool air for the amplifier.

i once had a panasonic dvd player which displayed the same code H02 and used the same drive mechanism as your player. this turned out to be a worn spindle motor and once replaced, all worked fine. you may well have the same fault. hope this helps?

hold the demo button in for a few seconds

Hi,
I'm currently working on a solution fot this problem and will post my results as soon as I succeed. I have got the ribbon cable but having trouble getting terminal that matches the back of the system.
Hope to have some news soon after the weekend
regards
topgunner

We are FIXYA dot com, we are not Technics, and we don't have your registered email address. Technics may have it, you use it to log in here but _we_ don't have it. No manuals for the 280, just the 290 sorry.

Technics-SL-DV-280-GN-SM - vintage hifi

www.vintageshifi.com > repertoire-pdf > pdf > telecharge

PDF Design and specifications are subject to change without notice. 2.Dimensions and weight are ... Sound processor: SH-DV280, Tuner/ Amplifier: SA-DV280,.

Technics SA-DV280 Stereo Tuner Amplifier Manual ' HiFi ...

www.hifiengine.com > manual_library > sa-dv280

Technics SA-DV280 · Specifications · Downloads · Comments · User login · Latest Comments · Gallery images · Latest Reviews.

Technics Stereo System SC-DV290 User Guide ...

audio.manualsonline.com > ... > Technics Stereo System

Audio manuals and audio service pdf instructions. Find the user manual you need for your audio device and more at ManualsOnline.

TECHNICS RSDV280EG - Service Manual Immediate ...

www.manualscenter.com > manuals > rsdv280eg-servic...

Jul 18, 2013 - Design and specifications are subject to change without. notice. ... Sound Processor: SH-DV280, DVD/Video CD/ CD Changer: SL. -DV280 ...

TECHNICS SC-DV290 OPERATING INSTRUCTIONS ...

www.manualslib.com > ... > Stereo System > SC-DV290

Technics DVD Stereo System Operating Instructions. SC-DV290 stereo system pdf manual download. Also for: Sh-dv290, Sa-dv290, Sl-dv290, Rs-dv290, ...

Disconnect all speaker wires from the back of the receiver and turn it back on. If overload does not turn on, post a comment and I can walk you thru troubleshooting. If it does, your receiver needs to be serviced. Hope this helps