Hi friends,

My sony a/v receiver is broken...something is wrong..im thinking of sending it to sony service, but if anyone has any idea of a better place for me to repair my receiver will be much appreciated...im afraid the sony service will overcharge me...anyone pls help??

thanks in advance

what's wrong?
could be just dust stuck inside the circuit, take a blower and clean inside the AVR and see what happen....
offcourse u need to power off and disconnect 1st hor...

when i switch it on...in the middle of listening...there is a loud explosion sound...a pop sound..then my receiver is muted (i think this is the automatic response of the receiver to protect itself)...it happens frequently...now the occurances are intolaratable..

u use what speaker? 4, 6 or 8 ohms?
look like similar to my old Sony, just clean the dust and everything work perfectly....the duct causing some short circuit in the PCB board...

check the speaker connections at the back of the receiver.

maybe there're loose exposed speaker wires close to each other - establish connection due to heat and cause the short.

Check all connections at the rear of the amp...speakers, joints, surrounding stuff like curtain, wind and makesure the stuff is not shorted.

Next is remove all RCA cables (even the SUB) to make sure its not the RCA fault.

If can pull another extension cable from another plug to make sure its not the work of termites!

This is the fun part...ON the amps volume to MAX...but without input signal for about 5min...then play around with the Volume knob up and down...set the amp volume to norl after that

Do not off the unit after that but try to isolated which component might be faulty....try it

u guys made fine points there...will try them all...btw..currently i have a media HD player..with it..there is optical cable, which i connect it to my receiver, but there is no sound..no ac3 or dts..no sound at all...should the media player transmit the sound by the optical cable to my receiver? or im missing anything?

please specify what media player (or base on what chipset) you're using.

im using Apacer A670 media HD player...my receiver is sony STR-K840P..old model which i used it with my dvd player before..it has composite..coaxial..n optical cable port..no hdmi port..currently i connect the hdmi cable from my media player to my lcd tv..n optical cable from media player to my receiver...ntg comes out from my receiver..

how about optical cable from dvd player to receiver?

dont' forget to check for dead lizards inside yr avr.

Do a Foctory Reset on your amp...refer to the manual book...if you dun have one..download the pdf file.
But you have to set it back again after that

If I'm not mistaken for Sony the Optical is the 'DVD' button...and set it digital in to 'Auto'

dvd player to receiver is ok...it can decode ac3 and dts.....yes..the optical is under dvd..i can see it stated OPT under dvd...thus, the receiver already recognising the connection of the optical cable...will try to reset to factory default, btw what do u mean by setting digital in to "auto"?

http://www.docs.sony.com/release/STRK840P.pdf

page22.

I'm using Sony amp too and use DVD for coaxials...but a read through your manual book say maybe DVD or Video2.
It could also be from your Media player audio setting, try play around with it..I mean PCM, stereo whatever.

Read up the manual..

Cheers

Hope it works out for you


This post has been edited by azbro: Jul 21 2010, 09:26 AM

yes...downloaded the manual n read it...it maybe due to my media player..is it possible that...since my media is connected to my lcd tv by hdmi cable..the audio is sent to my lcd tv (my tv produces sound from my media, of coz with its 2 speaker, not surround sound), so the optical cable is redundant in this case? however, the optical cable has the red light....i did change the audio in my media...from ac3 to dts...with no sound from my reciever....in addition, in the manual...it says "all optical and coaxial jacks are compatible with 96kHz,48kHz, 44.1kHz, and 32 kHz sampling frequencies....does this means that ac3 or dts with other that stated frequency will not readable?


anyway, thanks a lot for ur help guys

This post has been edited by firecracker: Jul 21 2010, 10:20 AM

Try setting your Media player to:

SPDIF LPCM: Select this option to output the digitized analog audio to the SPDIF audio..meaning maybe Stereo only

SPDIF RAW: Select this option to output multichannel audio...meaning Dolby/DTS with the Opticals

My best bet will be SPDIF RAW.

Instead of HDMI.

Its kinda funny, most other media players can handle both HDMI and Optical at once.....but between analog L/R (RCA) and Optical (Digital) need to select in the settings......first time I hear a media player makes you choose between HDMI and Optical....usually, both are good to go....but there is an option to turn off the HDMI audio for other models too.

Try playing around with the settings.

Please try again the tips given above by all members....and lastly...make sure the Optical connection is secure into the Sony Amp....Many times ppl complain no sound only to find out the optical is not so ngam fitment....they usually use cellotape or pieces of paper to stick in it.



This post has been edited by azbro: Jul 21 2010, 11:04 AM

will do...thanks a lot friend...i'll try to play around the media player..i make an assupmtion that hdmi n optical are good together....but i need to check first..try different scenarios...thanks again..will keep posted if anything

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Added on July 21, 2010, 10:35 pmi changed the media player's audio setting to SPDIF RAW, reset my receiver, test every speaker including the subwoofer...all work flawlessly...the SPDIF RAW solved the issue of connectivity between the media player and receiver....n so far no popping sound comes out..now i can enjoy movies with surround sound..hopefully no popping sound later...keep my fingers crossed...anyway thanks a lot guys, especially azbro for the helps...learn few things today..thanks again

This post has been edited by firecracker: Jul 21 2010, 10:35 PM

Hi Firecracker, did the pop sound & protect mode solved?
Mine exactly the same problem...

btw, how to reset it? Need to give a try...
thanks