20 Most Recent Sony STR-DE875 Receiver - Page 2 Questions & Answers

So the speakers and the individual amp channels work so that lets out the obvious big hardware items.

This is starting to sound like an obscure setting was set or changed by mistake.

It would be nice to figure out what that is/was in case it happens again but you may eventually have to resort to resetting the receiver to factory defaults and start over by holding the1/0 button for 5 seconds.

THE GOAL HEAR IS TO DETERMINE IF THE INSTALLATION IS CAUSING YOUR PROTECTION FAULT OR IS IT THE RECEIVER ITSELF HAVING INTERNAL DAMAGE. REMOVE THE RCA INPUTS AND DISCONNECT THE SPEAKERS, THEN POWER THE RECEIVER UP WITH THIS NO INPUT, NO SPEAKER LOAD CONDITION. IF IT STILL GOES INTO PROTECTION, THEN THE RECEIVER WILL NEED TO BE SERVICED, AS YOU HAVE TOTALLY SIMULATED A BENCHED CONDITION THAT IS TOTALLY INDEPENDENT OF YOUR INSTALLATION. MOST TIMES, THE RECEIVE WILL GO INTO PROTECTION WHEN IT SEES AN EXCESSIVE LOAD WHEN TURNING UP THE VOLUME, WHICH IS USUALLY CAUSED BY TOO MANY SPEAKERS OR DAMAGED SPEAKERS, BUT IF NO SPEAKERS CONNECTED, THEN IT IS USUALLY BECAUSE THE RECEIVER SEES AN EXCESSIVE LOAD DUE TO ITS OUTPUT SECTION BEING DAMAGED. IN ANY CASE, ONCE REPAIRED, YOU MUST CHECK YOUR SPEAKERS FOR BURNED VOICE-COILS, WHICH WILL IMPOSE AN EXCESSIVE LOAD TO THE AMPLIFIER AND CAN CAUSE IT TO FAIL AGAIN. LET ME KNOW IF YOU NEED FURTHER ASSISTANCE.....V

My bet would be on settings. Check the owners manual. If you don't have one google "sony (your model #) owners manual" sony has almost all their owners manuals online at no cost.

There is one one Ebay. Search for RM-PP505

Might sound silly, but have you checked the "A/B" speaker button on the front? it's easy to miss and it's a small button. The LCD display will light up "A" or "B" or "AB". Hope this helps, if not, post a comment and I can point you in the right direction, and/or help you diagnose a little deeper.

Protect mode will kicking whenever a fault is detected.

Causes that can start protect mode are:

Electrostatic harges on internal circuits.
Leave the unit unplugged for power for one hour or so, this will allow discharge.

Bad speaker wiring.
Check speaker wiring, try unplugging and plugging back, or start after removing one speaker at the time.

Internal fault.
Internal fault is the natural cause for protect mode. If all the above did not work, then the problem is a blown component or an internal fault. In this case the unit must be taken apart , tested and repaired by an experienced person.
If the unit is less than one year old, or if you want to get service, call Sony at the phone number listed on the product documentation.

Regards.

Most of the time it will need service (output transistors and resistors) This is a job for a electronic service tech. Estimate would be $100- $130

Protect means that an internal error, as a blown component, a short , or a wrong voltage had been detected.

Try unplugging the unot from all cables, including power cord, for ten minutes. If the unit is still on protection after restart, then you need to have the receiver taken apart and inspected by a technician.

SPDIF out is the Digital Audio output connection on the TV, take this and go into a Digital IN on your sony, select that input on the receiver and it shall pass Audio

IFF YOU HAVE CONNECTED X BOX TO AMP WITH PHONO CABLES CHECK THEY ARE NOT BROKEN ALONG THE LINE SOMEWERE.ALSO TRY HOOKING UP X BOX TO AMP WITH A OPTICAL CABLE AND SETTING X BOX OUT PUT TO 5.1 . IFF ALL THIS FAILS CHECK YOUR SPEAKER CABLES ARE NOT TOUCHING EACH OTHER OR EARTHING TO THE AMP OR OTHER METAL OBJECT.
HOPE THIS HELPS.

Put the signal into another input on the receiver. Any one will do except "phono"

Blinking doesnt always mean that the IR transmitter is working in the remote.
Check a couple-few of the online remote dealers you may be able to get one cheap.

have you adjusted your sound settings while in listening to the radio mode?

have you adjusted your subwoofer?

If you do not here a click as soon as the power is turned on, (note you must be in a very quite environment no noise absolutely to hear this) then the amplifier has blown output transistors which are pushing DC current to the speakers.

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

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SONY PS-FL7 service manuals download

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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 ..