Onkyo TX-SR602 Problems

[Yossarian]

I just purchased a used Onkyo TX-SR602 receiver and have discovered some issues while playing around with it:

1) The component video output doesn't appear to work correctly. I have my DVD player connected to component input 1, the setup has DVD assigned to input 1, but when I run the DVD player I get diagonal splotchy colored lines (red/blue) that "swim" downward from the left-hand side to the right-hand side on the TV.

2) The subwoofer pre-out doesn't appear to be outputting anything. I've tried it into a couple of different sources, playing both content and using the level adjust through the on-screen display, but can't seem to get anything. I've turned the subwoofer setting off and on through the OSD, but that doesn't help any.

Any ideas?

Does anyone have a copy of the service manual, or know where I could find one?

Thanks,
Dave III

 

[Yossarian]

1) The component video output doesn't appear to work correctly. I have my DVD player connected to component input 1, the setup has DVD assigned to input 1, but when I run the DVD player I get diagonal splotchy colored lines (red/blue) that "swim" downward from the left-hand side to the right-hand side on the TV.

Just a quick update to my troubleshooting since my last post...

I also tried using the Component 2 and Component 3 inputs (and assigning the DVD input to each), but still had the same strange output from the Component out lines. Unfortunately, the model I have doesn't have the SVideo --> Component upconversion, so I couldn't try that to see if it really is the Component out that's fried, or maybe all of the Component in lines. Oh, well.

Does anyone have a copy of the service manual, or know where I could find one? I've opened up the case to look for any obvious signs of dead parts, but couldn't see anything. The inside is a mess of PCBs and ribbon cables, so I'd like to have the service manual before trying to take it apart.

Thanks,
Dave III

 

[j_garcia]

You can download the user's manual directly from Onkyo's website in PDF form. Go to downloads -> manuals -> receivers, and choose the model.

The service manuals are usually not available to the public and unless you are familiar with working on electronic equipment, I'd strongly suggest you leave it to someone who is.

The video part does sound like something is wrong.

With the sub, there are a number of things that it could be. You have to set the sub to "on", choose a crossover point, and set some or all of your speakers to small and it should work.

 

[Yossarian]

You can download the user's manual directly from Onkyo's website in PDF form. Go to downloads -> manuals -> receivers, and choose the model.

The service manuals are usually not available to the public and unless you are familiar with working on electronic equipment, I'd strongly suggest you leave it to someone who is.

The video part does sound like something is wrong.

With the sub, there are a number of things that it could be. You have to set the sub to "on", choose a crossover point, and set some or all of your speakers to small and it should work.

Thanks for the reply.

I am an electrical engineer and have a good bit of experience in working with A/V equipment (specifically audio amplifiers), so I'm pretty confident that I could troubleshoot the problem given the service manual.

Good thinking so far as the sub output is concerned. I've tried cycling the sub output on and off, changing the crossover point, and even enabling and disabling the "Double Bass" feature of the receiver (when it's activated, it will send the LF outputs of the FR & FL channels to the Sub as well), but so far have had no luck. I will try setting some speakers to "Small" to see what happens, though, just to be sure.

What I'm really confused about is that when I went to the level adjust feature, I was able to get white/pink/whatever color noise out of FR, FL, C, SR, and SL when those channels were selected, but didn't get any noise out of the subwoofer when Sub was selected. I verified the cable and subwoofer on my Denon AVR-3805 using the same level adjust feature and was able to get the noise output over the sub. Additionally, I threw in a Dolby Digital movie and didn't get any LFE over the subwoofer output (I disconnected all channels but C to be able to hear better, but the subwoofer wasn't moving at all). The scene was one of the latter fight scenes from _The Matrix_, so I'm fairly certain that it contained LFE content.

Thanks again,
Dave III

 

[j_garcia]

If none of your speakers are set to small, you will only be getting LFE from the sub - which means only when an LFE signal is present. Just becuse there is bass does not guarantee there is LFE content that will be sent to the sub.

 

[Yossarian]

If none of your speakers are set to small, you will only be getting LFE from the sub - which means only when an LFE signal is present. Just becuse there is bass does not guarantee there is LFE content that will be sent to the sub.

You have a good point.

I went back and watched that scene of _The Matrix_ with my Denon receiver, and I was definitely getting LFE content. I even disconnected all of the other channels and left just the sub connected to be sure. (All of my channels are set to large on the Denon.) So, I'm pretty confident that something is wrong with that output.

I'm going to put up a different post requesting the Service Manual... just in case this thread isn't getting the attention of someone that might have it.

Thanks again,
Dave III

 

[Buckeye_Nut]

Just a quick update to my troubleshooting since my last post...

I also tried using the Component 2 and Component 3 inputs (and assigning the DVD input to each), but still had the same strange output from the Component out lines.

Hmmm.... If I didnt know any better, I'd guess you're using the wrong cable. Did you go out and buy component cables, or are you using whatever you had laying around? To be honest, Im not sure if the RBG component cables are interchangable or not. Im thinking not, but not sure because I've never tried to see if it would work.

As for the sub-out, you'll need to calibrate and set up the receiver to output the signal to the sub. This will be done when you go through the setup menus.

 

[Yossarian]

Hmmm.... If I didnt know any better, I'd guess you're using the wrong cable. Did you go out and buy component cables, or are you using whatever you had laying around? To be honest, Im not sure if the RBG component cables are interchangable or not. Im thinking not, but not sure because I've never tried to see if it would work.

As for the sub-out, you'll need to calibrate and set up the receiver to output the signal to the sub. This will be done when you go through the setup menus.

Thanks for the reply.

The cables going from the DVD player to the receiver were Monster something or the other component while the cables going from the receiver to the TV were Dayton (************.com brand) component. Yes, both were bona fide component video cables, and both work fine with my Denon receiver. The Dayton ones have also worked going directly from the DVD player to the TV. Good thought, though... if they didn't have the bandwidth, that might cause a problem.

I'm fairly certain the sub out is gone at this point, given that when I run the level calibration tool on the Onkyo, I get output on all channels other than the sub out. I've verified the subwoofer and cables on my Denon, and they all work fine.

Thanks again,
Dave III

 

[j_garcia]

Does the sub have speaker level inputs? You can at least verify if the sub is working or not that way. 9 times out of 10, small is the setting you want to use, though you can use the lowest settings on the receiver's x-over if you have speakers that can handle a fair amount of bass. The large setting is only used when you have speakers that are capable of very low extension, say down into the low 30s.

 

[Yossarian]

Does the sub have speaker level inputs? You can at least verify if the sub is working or not that way. 9 times out of 10, small is the setting you want to use, though you can use the lowest settings on the receiver's x-over if you have speakers that can handle a fair amount of bass. The large setting is only used when you have speakers that are capable of very low extension, say down into the low 30s.

Howdy,

The subwoofer is definitely working. I get output from it when I use the signal level calibration tool on the Denon receiver. I also had just the subwoofer hooked up this morning when I was verifying that the particular scene in the Matrix that I was using had LFE content, and it was definitely playing. Additionally, when I was testing the Onkyo receiver, I plugged the sub out into the Aux in of another stereo just to see if I got anything, but didn't.

You have a very good point about the small vs. large setting, but in this particular case I think large is the right choice (it's even specified in the manual).

Thanks again,
Dave III

 

[Capper]

We sell Onkyo where I work, and I do have some bad news for ya. The 602 had issues. I also bought one for myself and the board fried on it in 6 months. Very uncommon for Onkyo in my experience, and even our rep confirmed that the 602 receiver and 302 player had more service issues than the rest of the entire line combined.

The good news is that as far as I know, it can be fixed. I can't say for sure with your machine, as I am by no means a technician, but based on experience, I think the only 602 that wasn't quickly and easily fixed was oddly enough, my own (they eventually replaced it with the 603).

I'd take it in to be looked at by an authorized repair depot. If it is under warranty still (which it should be), no harm done, if not, it might be worth at least getting it looked at.

Cheers.

(also a note from personal experience with the Onkyo line...regardless of your speaker type, choose small speakers unless you play mostly music with the system).

 

[brendy]

I have the 602.You need to set all speakers to small.After reading your posts as a test I set my fronts to large and "lost " all bass from my subs.Once again set all to small and calibrate the channel levels.