20 Most Recent Sony STR-DE595 5-Channel Amplifier Questions & Answers


Replace the display.

Sony STR-DE595... | Answered on Dec 22, 2016


HI...
It will need tech service.
Check the Sony consumer site for who can do it.

Sony STR-DE595... | Answered on Oct 07, 2015


Check for shorts in the speaker lines.The easiest way to do this is to disconnect all the speaker lines from the amp. Now, turn it on and see if it goes into protect. If it does,that tells you that the problem is in the amp.
If it doesn't go into protect, reconnect the speaker lines one at a time until you find one(or more) that shuts the amp down. That would be your short.

Sony STR-DE595... | Answered on Feb 21, 2015


open the amp, you will see the remaining parts of the blown transistor in the pcb mostly the soldered legs will be there. before desolder the legs, findout the right position and direction of the trnsistor insertion to the pcb by comparing the blownout transistor with the legs on the pcb once confirmed the position write down(or draw) in apaper then remove the legs from the pcb and solder a new transistor in the pcb..i hope this will help you to fix your problem thanks.

Sony STR-DE595... | Answered on Dec 16, 2014


The protect mode setup provided to protect the speakers against burning due to the amp output short circuit. protecter activated means one or more channels of the O/Pamp is short circuited(defective) in your amplifire . First of all Remove the Power cable from the Amplifier and make sure no power connected to the Amp.
1.First step identify the faulty O/P Amp Channel---------
Inside the Amp you will see Five O/P Amp Sections (all are looking similar this is the common idea to locate the O/P Amps) there will be ten power transistors fitted on heatsink (2 transitors for each channel).some cases damaged transister are visible physicaly then easily you can identify the faulty channel(maybe cracked or blowned). There is no visible signs then you must do some tests with multimeter.You will find Five relays on the pcb( mostly square or rectangular ice cube relays) each relay have coil and N/O contacts built in and the terminals soldered to the pcb first you should identify the contact terminals (mostly it will be marked at the top side of the relay) otherwise a simple idea is , look on the pcb solder side trace the printed copper track going from the terminals of the relays you will see one is going to the speaker out socket this terminal called Sp O/P, other one going to the Amp O/P Transisters legs (some cases it pass through a coil of few turns) this terminal called Hot O/P . Do the same follow up and find the both terminals for the all the 5 channels.
Next step make sure you or not touching any live power (220v or 110v A.C) tracks or wires inside the Amplifire and you should keep this in your mind althrough the following tests
Take your multimeter select the D.C Voltage Range connect the Negative probe(Black) to the Metal Body of the Amp and put the positive probe (Red) apart safely. plug back the power cable to the Amp and power it from your wall socket then switch on the Amp. Turn the volume control knob to zero and select the input selector switch to Linein or Aux and remove the RCA Cable connected to that input socket. Now carefully touch the Hot O/P terminal of the relays with the positive probe and note down the voltage readings on a paer (Do this for all 5 relays one by one, values result may be + volt or -- volt or zero volt). After see the reading values we can find the faulty Amp section
1. The channels showing zero voltage are in good condition.
2. The channels showing + volt or -- volt ( may vary from 1 volt to 30 volt ) are faulty damaged Amp sections.
Now we located the faulty Amps then how to fix the faulty ones.
before going to do the next step switch off the Amp and remove the power cable from the wall socket. Check all active components one by one (transistors,diodes,zener diodes) and resisters capacitors in the faulty Amp section replace the faulty components by the same value new ones. carefully test the components twise. if you miss a small defect component or replace it in wrong way this single mistake will blow up your Amp again. After replaced the defective components do the relays Hot O/P terminals volt reading test process again. if all the readings are zero volt you have successfully repaired your amp still the reading showing some voltage means you must do the components checkup process again. If you do it slowly with full concentration surly you will fix your problem and your Amp will work back to enjoy the music .GOOD LUCK.
for comments and doubts contact [email protected]

Sony STR-DE595... | Answered on May 02, 2014


1.Check the Input wire cords mostly there will be a cut in Ground shield.
If the Point 1.is not solved. then try to open the Amplifier(Don't open if you are not a qualified technician) check the input connector set block's leg soldering might be a dry solder.

Sony STR-DE595... | Answered on Jan 17, 2014


Maybe your speakers are not connected correctly. The default is A

Sony STR-DE595... | Answered on Mar 03, 2013


Not really, but the good news is that you have four other channels to compare it with when testing parts!

Sony STR-DE595... | Answered on Dec 23, 2012


If your turn table has a magnetic cartridge it will not work,Becuase the ner recievers are not equip with a phono preamp, They are equip to only use a crystal or ceramic cartridge in the turn table.

Sony STR-DE595... | Answered on Oct 02, 2012


You should have MD/tape on the back with two phonos. Connect the phonos from turntable to IN slot. You should work

Sony STR-DE595... | Answered on Sep 29, 2012


Hello
You haven't given any details of the present condition of your Sony Amp. Anyway, I posts this solution assuming that, the set is dead now. If the set has been overheated, there must be some short or overload, in its output section. The output section is the most current conscuming part of any amp. To detect and repair this section, you must ahve sound knoledge in electronics, especially digital electroncis, because, except output part of this set, all other sections are digital circuits. Without knowing anything about digital electonics, all work will be in vein.
If you have enough knoledge, inform me by Fixya comment box. i'm ready to assist you to troubleshoot this set. You must have thorugh knoledge in electronics to follow me. OK.

Sony STR-DE595... | Answered on Dec 27, 2011


Start by choosing FM on a known frequency with a station broadcasting and volume is turned down to a NORMAL listening level. Next, make sure speaker selector isn't the wrong position (make sure "SPEAKERS OFF/A/B/A+B is set to A [or B to match the speaker terminal connections]), check to be sure "Mute" function is not activated by pressing the MUTE button on the remote to toggle it between on & off, Make sure headphones are disconnected. Make sure "PROTECT" is not displayed on the front as this indicates a shorted speaker wire - shut off and repair the shorted wire(s).

If you get sound on FM, but have an issue with another external component (CD, DVD, Phono, etc.) check the cables between the component and the input panel on the rear of the STR-DE595.

I hope this helps & good luck!

Sony STR-DE595... | Answered on Sep 13, 2011


Good day!

If your amplifier is under warranty,you have to send it to the nearest service center.Do not try to open the machine because the warranty void.
Its not only a busted fuse,there's a defective parts inside.like power transistor(regulator) and open resistor near on regulator.

try to contact first your dealer or manufacturer to service it.


Thank you

Sony STR-DE595... | Answered on May 16, 2011


You're the one with the eyeball on it. What do you think?

Does it self-protect with NO speakers attached?

Sony STR-DE595... | Answered on Mar 15, 2011


check in the back for a fuse, if no fuse in the back, it may be inside the case. If it's blown, there usually is a reason. also check to make sure that your speaker wires are not shorted, if they are they can burn up the output stage of your amp.

Sony STR-DE595... | Answered on Mar 08, 2011


I couldn't tell you if the model supports hdmi, apart from saying if it has got an hdmi socket it should (in theory). But I can say that if you want full 7.1 sound then though your blu ray can play them back (movies) in that sound, you won't hear them in that. It depends, if you want to experiance the full 7.1 sound, then you need a new amp and the two extra speakers.

Sony STR-DE595... | Answered on Jan 26, 2011

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