20 Most Recent Technics SA-DX1040 Receiver - Page 9 Questions & Answers

On some systems F61 is to do with the fan not working properly, sometimes blocked with dust. On others it's a power amplifier failure. Yours does sound like a power amp problem, but both should be checked.

Of course you can!

Hi if u have checked everything out the only thing left is to replace the IC.amplifier chip which is bolted to the large silver heat sink...when u replace make sure u put some new heat sink compound on the IC ..if u don't know how to use a soldering iron properly don't attempt to do it u can easily destroy the new IC chip with heat .cheers

WHAT IS QUESTION

First, I'm not a Technics tech. * Normally I would suggest to check for warranty, but this unit is outdated. * Try to contact ; https://www.technics.com/us/support/ *** The following is for information only.*** * The following vid shows the speed switch on the left. If it's not tracking then there may be a problem in the selector switch, sync tracking, or motor drive. * You may want to check the "window" or sensor of the the speed sync light (the orange light). Wipe down the lamp and the peep hole where the sensor is located (on or near the lamp) * Wipe down the outer edge of the turn table to clean the metal "dots" or "bars" on the rim. This is what the sensor reads to determine speed. * Speed controls and direct drive turntable are not customer serviced parts (other than replacement of the component). * Example of play; https://www.youtube.com/watch?v=YUaywfmnvt0 * Closer look at auto play feature; https://www.youtube.com/watch?v=A7RURSnbSz4 * SL-1510 Mk2 repair; https://www.youtube.com/watch?v=Unf0rtQI0Us * SL-1900 repair; https://www.youtube.com/watch?v=k0HTskP4Wak * SL-1210 repair; https://www.youtube.com/watch?v=dKpQ3j6WzXQ * SL-23 repair;https://www.youtube.com/watch?v=hTTLkQosBzc * Repeating Return problem; https://www.youtube.com/watch?v=-tel1eKu9YI * SL-1200 Speed changes(sync); https://www.youtube.com/watch?v=jVws5t25XPk * SL-1300 Speed problem; https://www.youtube.com/watch?v=0Dg-S0QPaek * SL-1200 Very DEEP level repair; https://www.youtube.com/watch?v=mEvOpKsJMRo Aloha, ukeboy57

Hi,

I had the same system... still have the remote if you're interested in it?
Regards, Gary.

The first thing to do is check the connection to the TV. Is the right output from the TV actually connected? Check your cables from the TV to the amp.

Trash it, There are no repair parts available. Why spend several hundreds of dollars for test equipment, that you have need of

It is not Dolby Digital at all. It's just a Dolby Pro Logic. That means you have two front a centre channel for speech and back surround which is split between between two speakers. The difference is that the two back speakers on yours will produce the same sound from both. Whereas a Dolby 5.1 will produce individual sounds on the rear speakers and better definition on the other speakers. If you want better quality sound you need to upgrade it. I would go for one that has more channels than 5.1 and if you have a blu-ray player consider a Dolby Atmos one.

I had the same issue.the contacts on selector switch is dirty.All u need to get a good contact cleaner and spray the selector rod( remove knob first with preamp facing up), the liguid will find leak into selector and clean contacts.after doing mine, the slector knob feels more solid when turned and does not change input anymore.Junior

Hi try this ...cheers

A little more triage would be in order before you take a knife to it. Starting with - What Brand is the SA-300?

What source(s) produce the sound? Have you referred to the manual(s)?

If it's only an analog source doing it I would suspect a bad audio cable or a switch contact somewhere in the signal path. Typically, it might be a switch you rarely use, like a Tape Monitor or Mute. It's wise to occasionally (with power OFF) manipulate all manual controls throughput their ranges a number of times to wipe oxides from their contacts.

https://www.ebay.com/itm/Technics-sl-js1-Original-Turntable-Turntable-Service-Manual-WIRING-DIAGRAM-/323074678569 Technics sl js1 Original Turntable Turntable Service Manual WIRING DIAGRAM...

By fail if you mean to burn the voice coil or the ruin the cross over, you would have heard it. If it is all on the same channel you may be able to isolate the issue to the receiver.

Technics SA 5250 Service Manual Technics SA 5250

Time to replace the deck.

Look for resistors that have changed color and are dark