JiminSTL Posted November 6, 2015 Share Posted November 6, 2015 Question, please: is it possible or likely that merely by running a Cat 5 cable from a router to the ethernet port of a Sony receiver that serious damage could occur to the AVR? Specifically, when "helping" a friend do that, the satellite connection in the AVR no longer worked. At first, we got video but no audio, then nothing. Is there some inherent risk (even very small) in connecting/disconnecting an ethernet cable? Could we have "fried" some circuitry, or something? Was such a failure just waiting to happen, and this triggered it? Will appreciate some insight, as I feel bad about this. Thanks. Quote Link to comment Share on other sites More sharing options...
jimjimbo Posted November 6, 2015 Share Posted November 6, 2015 In my experience, there is an extraordinarily low possibility that simply connecting the cable caused the damage. I would assume that you switched cables to make sure you didn't have a bad one? If so, and it still didn't work, there is a possibility that the connector in the AVR was loose, or bad. Have you opened it up to look? Quote Link to comment Share on other sites More sharing options...
JiminSTL Posted November 6, 2015 Author Share Posted November 6, 2015 Thanks, Jim. When you say the connector in the AVR may be loose, would that derail the sat video and audio if the ethernet cable were disconnected from the AVR? Quote Link to comment Share on other sites More sharing options...
wvu80 Posted November 6, 2015 Share Posted November 6, 2015 (edited) In my experience, there is an extraordinarily low possibility that simply connecting the cable caused the damage. Agree. I would go further and say not possible, but there is always that .001% chance I guess. +++ Jim used the word "damage" to the AVR. It is more likely that hooking up the Ethernet cable could have triggered some self-sensing circuitry in the AVR that ended in some kind of lockup, but this would surely by now be a known problem. I feel this is still highly unlikely, but at least a little more possible than damage from simply plugging in an Ethernet cable. I would suggest unplugging the Ethernet cable (to eliminate variables) and use your basic trouble shooting skills, which I am sure you have. Edited November 6, 2015 by wvu80 Quote Link to comment Share on other sites More sharing options...
rebuy Posted November 6, 2015 Share Posted November 6, 2015 Unplug everything and let it reset. then make sure all connections are made before powering up. Might work--Might Not. 1 Quote Link to comment Share on other sites More sharing options...
CECAA850 Posted November 6, 2015 Share Posted November 6, 2015 At work here we have normal cat 5 cables and some that have 2 wires switched in one end (I have no idea why). Hold the ends together and make sure the colors are the same in both ends in the respective spots. Quote Link to comment Share on other sites More sharing options...
jimjimbo Posted November 6, 2015 Share Posted November 6, 2015 (edited) May I ask what model is the AVR? Make sure you cycle through all of the other inputs to verify they are all working, and agree to do a power off reset and make sure all connections are made prior to power on. Edited November 6, 2015 by jimjimbo 1 Quote Link to comment Share on other sites More sharing options...
JiminSTL Posted November 6, 2015 Author Share Posted November 6, 2015 Guys, thanks for the insights, and, PLEASE KEEP THEM COMING. My "friend" is my brother-in-law, a good guy, and the last thing I would want to do is harm his apparatus. I will be sending these comments to him, so we can have a better understanding of what might have occurred, and what might "fix" it. Any thoughts on the Sony AVR? b-in-law is thinking he will have to replace it. Quote Link to comment Share on other sites More sharing options...
JiminSTL Posted November 6, 2015 Author Share Posted November 6, 2015 (edited) Jim, the AVR is Sony model STR-1040, as I recall. Edited November 6, 2015 by JiminSTL Quote Link to comment Share on other sites More sharing options...
wvu80 Posted November 6, 2015 Share Posted November 6, 2015 (edited) At work here we have normal cat 5 cables and some that have 2 wires switched in one end (I have no idea why). Hold the ends together and make sure the colors are the same in both ends in the respective spots. Back in the olden days if you were connecting a HUB to another HUB two wires in a 10baseT configuration needed to be reversed for partitioning reasons. That was all made unnecessary around the 1990's when auto-sensing hubs made connecting hub-to-hub plug-n-play with regular 4 twisted-pair cabling, the modern standard Cat5 configuration. I'm not sure why any modern setup would need the reversed wires. Edit: Even if the wires were reversed somehow regarding Jim's dilemma, the result is that the connection would simply not work, nothing would affect the equipment on either end of the wire. There is simply no way Ethernet would have blown an AVR. Search for other answers, I feel pretty sure this is solvable. FYI In a previous life I installed networking equipment and I made/tested my own wiring. Edited November 6, 2015 by wvu80 Quote Link to comment Share on other sites More sharing options...
derrickdj1 Posted November 6, 2015 Share Posted November 6, 2015 Plain and simple, the cable did not cause the failure. It is an avr problem! Time for a new avr if it is not under warranty. Quote Link to comment Share on other sites More sharing options...
USNRET Posted November 6, 2015 Share Posted November 6, 2015 Occasionally my DirecTV DVR would lock up my network and the TV would freeze and lose audio. I would have to reboot DVR and router. Quote Link to comment Share on other sites More sharing options...
muel Posted November 6, 2015 Share Posted November 6, 2015 Well, actually more switches and some routers have POE (power over Ethernet) that allows the device to be powered without needing a separate power connection at the device. This keeps you from having to run power to your IP video cameras or wireless access points. It might be possible that your friends router has this capability. They are supposed to have auto-sensing capability so that it doesn't send power unless it is connected to a POE device. Possible short or malfunction? Just a thought. Quote Link to comment Share on other sites More sharing options...
jimjimbo Posted November 6, 2015 Share Posted November 6, 2015 Here's the Sony Home Theater Community site: just fyi, may want to do a search there, or ask a question. http://community.sony.com/t5/Home-Theater/ct-p/home-theater-systems I know this may be a nightmare, but......have you called tech support? How old is the AVR? I guess I still haven't figured out from your description....does it work at all now, with the ethernet cable disconnected? Quote Link to comment Share on other sites More sharing options...
JiminSTL Posted November 6, 2015 Author Share Posted November 6, 2015 The description I received: "we did something to the receiver because the sat cable setting is fried. i need another receiver. shame this one is a year old!" ^ Good idea about the Sony Home Theater Community. Quote Link to comment Share on other sites More sharing options...
jimjimbo Posted November 6, 2015 Share Posted November 6, 2015 Here is another link to a Google page that has links to problems with that receiver. https://www.google.com/search?q=Sony+model+STR-1040&oq=Sony+model+STR-1040&aqs=chrome..69i57&sourceid=chrome&es_sm=0&ie=UTF-8#q=sony+str+dn1040+problems Quote Link to comment Share on other sites More sharing options...
babadono Posted November 6, 2015 Share Posted November 6, 2015 At work here we have normal cat 5 cables and some that have 2 wires switched in one end (I have no idea why). Hold the ends together and make sure the colors are the same in both ends in the respective spots. One is a 'straight' cable the other a 'crossover' cable. Most modern enet switches will self detect and work with either. Back in the day this was not so. Quote Link to comment Share on other sites More sharing options...
babadono Posted November 6, 2015 Share Posted November 6, 2015 Does the AVR have reset button? Sometimes hidden. Press it, sometimes more than once is neccessary. Quote Link to comment Share on other sites More sharing options...
CECAA850 Posted November 6, 2015 Share Posted November 6, 2015 'crossover' cable That's the term they used for them, thanks. Quote Link to comment Share on other sites More sharing options...
JiminSTL Posted November 6, 2015 Author Share Posted November 6, 2015 Excellent thoughts and comments all. Thank you for your interest. I have passed them along to b-in-l. As I mentioned to him, it seems odd to me that an ethernet cable connection would cause a problem. Maybe if there were some kind of existing connection issue, or a component on the verge of physical/electronic failure, perhaps a slight physical movement or jolt was sufficient. But cause the problem . . . ? Quote Link to comment Share on other sites More sharing options...
Recommended Posts
Join the conversation
You can post now and register later. If you have an account, sign in now to post with your account.
Note: Your post will require moderator approval before it will be visible.