20 Most Recent Technics SA-DX750 Receiver - Page 2 Questions & Answers

http://www.eserviceinfo.com/downloadsm/35987/technics_sa-dx750.html

Newremotecontrol.com has a substitute remote with the same features as the original. Part# EUR7702KK0 for around $29.99. The original remote is obsolete.

Check all input cables,,rca jacks,,,make sure proper speaker channels on,,on the technics,,,change speaker wire,,could be bad,,good luck,,also if dusty ,,inside ,,,blow it out,,with air compresser or can of air ,,in local electronics store isle,,

Well if you can hear RS then take it to your local electronics repair store if warranty has expired. If you cant hear RS aswell then you might not have the right number of speaker's or speakers setup right. if you have 7.1 then you will have LS and RS speakers if it is 5.1 setup then then rear speaks have an option on most to be a rear (behind speakers) or rear (side speakers

everything should be run to the receiver in ,, then from the receiver out,, heres the instruction manual for your set up ,, http://service.us.panasonic.com/OPERMANPDF/SADX750.PDF

TV's don't play through receivers. TV sound might. If it comes from a Cable Box, connect the Cable Box digital audio to the receiver as you would any other high-end audio device; and the Cable Box's standard analog audio to the TV for those times you don't need the Technics audio capabilites (like watching news).

Have you looked at the manuals?

Check whether speakers are working at all:

• Does the speaker indicator light flashes or not?
• Do the speakers emit at least some small noise (try to plug in and out the speaker jack).
• Try to plug in different speakers (from another device, or borrow from your friends or neighbors).
• If other speakers work - try different speaker cords, maybe the cord is broken and you will only have to change cord, not the the speakers.

Try plug the speaker jack in different jack-holes of the DSP (usually the color of the jack and the jack-hole should match).
Does the DSP show any signs that it is operates normally.
If nothing helps - bring it to the warranty repair service (at least 2 years for all electronic devices) or much better - ask for replacement (ask the problems might reoccur for once already failed devices in the future). --------------- P.S. If this helped you to solve the problem (or at least brought some clarification) - rate this solution with 4 thumbs up! Thank you!

There is one on ebay.

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good luck.

Zeppelinx12

Here's a link - http://www.littlediode.com/components/RSN310R36A.html?NO_COOKIE_WARNING=2&ti=ee620e42228fae8ff8cec1707195d1b2&xid=82c9e9b9449b64e2c21ef3f5aea0d9ef

Page 24:

"Turn the unit off, disconnect the AC power suplly cord, then reconnect and turn the unit on. Consult you dealer if "F 70" remains in the display.

http://service.us.panasonic.com/OPERMANPDF/SADX750.PDF'

Support: 1-800-211-PANA (7262)
http://www2.panasonic.com/consumer-electronics/support/Contact-Us.4

This is most likely to be a short at the speaker connections. If you have binding posts with bare wires on the speaker connections check each one to ensure there are no stray filaments of wire shorting accross the connections.
If that is all OK then disconnect all speakers and connect one at a time (with the AV receiver switched off when you make connections) and test the result each time. You may then be able to determine if there is a fault with one of the speakers or the speaker wiring.

it could be that your amp chips are gettin hot

- if you've got any knowledge of takin these type of things apart then here goes. undo the six fixing screws (if it outs of warrenty that is).
what you'll see is a main board and a little pcb boad attached to the back in which the rca's are connected to. remove the screws that hold this in place and with a set of long nosed plyers gentlely close the plastic lugs so you can remove it ( also remove all wires as to remove it compleatly) if you look on this little board you will see 2 black chips that are next to each other. the 1 that stands out the tallest out of the pair CHECK IT FOR DRY JOINT (solder split ) as that 1 normally becomes loose and can move about (re solder it) and replce back. now on the main heat sink unit you have 2 amp chips. remove the screws and clean all heat sink compound. put new compund on and screw back ( these dont need removel if your gentle. replace the cover and see what it does
best of luck

Have you noticed if the speakers selector switch in the front panel is set to off ? That position for the switch is only suited to listen heaphones. Good Luck.
Flavio/BRAZIL

have you checked all your wiring as sometimes the wires can become loose at the back of the amp

According to Technics reference manual, turn the unit off, unplug for a few, plug in, turn unit on. Consult your "dealer"(authorized repair person, i guess) if light remains on. But doesn't say what f70 means, or associated with.
Unplug and open up the unit, and check the internal fuses on the circuit board. Also check for proper speaker wire hook up. Re-seat the connections. Visibly check the speaker wire runs for shorts, cracked casing, cat/dog chewing. etc.

Hope this helps.