20 Most Recent Sony STR-DE705 Receiver Questions & Answers

Possibly one of the power transisitors has gone out. They are typically used in pairs, and if one went out, this is likely what you would experience. Open the unit and look for the power transistors. The have 3 leads and should be connected directly to a heat sync. If one burnt out, it will likely be obvious by just looking at it. Power transistors are cheap (>$10) and there are many online sources to by them from. With a litle soldering skill, shouldn't be too bad.

If protect is coming up on the display, it means the system is detecting a short somewhere on one of the speakers and so is turning the amp off to avoid damage.
Check all the connections at the back of the amp to ensure they are not shorting, and at the back of each speaker, if nothing is found there, check each wire for damage (like squashed or rodent damage).

If you are using bare strand wire for your speakers, check all terminals on both ends to see that they are tight and there are no stray copper strands.

Resetting probably won't fix it, Sounds like it needs output transistors and some resistors and/or fuses

More than likly the built in amplifier is dead and its time to lay it to rest. Before you do that, make sure all your positive and negitives are correct and that none of the wires are touching one another.

Broken wire, or bad connection to the head unit.

This means that the unit detected a problem and shut itself down to prevent further damage. The normal cuase of this is a defective transistor in the final amplifier stage. Figure on $15-$35 for parts plus the local labor rate for the total repair.

Dan

yes you can use a step down converter,but remember to use a higher rating converter.if your receiver need 100w ( or 1A )then you need a converter at least give 150w ( or 2A ).

It looks like the manual knows, and you can have 5 AM station presets and 15 FM. https://www.google.com/search?q=preset+a+second+AM+station+on+a+Sony+SRF-M97+Walkman ..

'Direct Drive' appears to mean something different to Sony unless the belt is for another function. https://lptunes.com/products/sony-ps-fl7-ii-ps-fl7-ii-psfl7-ii-turntable-tonearm-belt-replacement Service Manual

Sony PS-FL7 Stereo Turntable System Manual

Vinyl Engine https://www.vinylengine.com > library > sony > ps-fl7 Sony PS-FL7 owners manual, service manuals and schematics are for reference only and the Vinyl Engine bears no responsibility for errors or other inaccuracies. "); background-repeat: repeat-x; display: inline-block; overflow: hidden; position: relative; background-size: 14px 11.4px; height: 11.4px; width: 68px;">"); background-repeat: repeat-x; display: block; background-size: 14px 11.4px; height: 11.4px; width: calc(56px);"> Rating: 8/10 · ‎ 4 reviews

SONY PS-FL7 service manuals download

NoDevice https://www.nodevice.com > ... > Vinyl Players > SONY SONY PS-FL7 service manual (Vinyl Players) in PDF format will help to repair SONY PS-FL7, find errors and restore the device's functionality. ..

There is not reason this would click and not turn on. If it just clicked, it would likely be caused by interference from another appliance, typically a fridge or freezer. The most likely reason is a relay in the internal power supply. It will need a Sony Service Centre. https://www.sony.com/electronics/support/res/manuals/4154/41545841M.pdf It isn't a recorded known issue. Sony are high quality equipment so it is worth getting it fixed. https://www.google.com/search?q=sony+icf-cl75ip+clicks+and+not+working ..

Open it up and look for bulging or split electrolytic capacitors, especially in the back to the display and the power supply. Or take to an electronics technician for diagnosis. https://www.google.com/search?q=Sony+deck+MHC+RV900D+not+working ..

C81 error indicates an internal hardware fault.Check CD mechanism is not jammed.

Question edited for clarity, turned around plus CAPS. It should be a standard figure 8 connector. https://www.google.com/search?q=sony+audio+rack+su-s5520+power+cord+replacement ..

All devices that have a remote need a remote https://www.fixya.com/support/r29872378-universal_remotes_no_facsimile_remote ..