Onkyo TX-Sr603 goes back to standby when press On button - help!
The other day I was pushing my tv into the cabinet and suddenly there was a loud pop and a puff of smoke came out of the top of my Onkyo TX-SR603x machine (top right, above where the dial is). ( I think the component cables on the back of the tv touched together when I pushed the tv in.) The standby light is still on, but when you press the 'on' button, it turns on for about 15 seconds, then back to standby. Is this just a blown fuse or something bigger? Since I am out of warranty, I am trying to decide whether to buy a new receiver or have this one fixed. (I bought it 4 years ago.)
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Re: Onkyo TX-Sr603 goes back to standby when press On...
Does not sound like the fuse. its easy to check. unplug unit and remove the cowling / shroud of the unit. the internal fuse will look like a car fuse. the old round style about 1" long and 1/4" round. sounds like a bigger problem. hope this helps.
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I occasionally have the same problem with my Onkyo 705. It is only with the signal from cable tv and never anything else. I have not found the cause of the problem exactly, but I have found that switching the listening mode to THX 7.1 fixes it, and often if I switch listening modes and switch right back, it fixes itself. I would be interested to know what you are using for input when this happens, or if it is with everything.
I have the same two problems! "Zone 2" works, but the main amp will make a noise and then stop working. Sometimes when I change the listening modes around it will start working. Lately, though, "zone 1" has gone out altogether.
Depending upon the type of power outage, you may have more of a confused receiver than a defecive one. Try unplugging the unit for an hour or so to see if that resets the whole thing back to "normal". If not, then further investigation with a scope or logic analyser will be required to determine whether the problem is with the internal CPU or a defect on the data lines. Unless the reset works, this is not likely to be a DYI repair.
Not to be found. Your remote controls a lot of functions, and as such can be confusing to program properly. I can only suggest two things, one, sit down with pages 14-18 of your user's manual and use some patience finding how to work it. If you do not have a manual it can be found at manualslib.com and look for this search result ONKYO TX-SR603X INSTRUCTION MANUAL Pdf Download. with manualslib.com underneath. Your second option is too take it a repair shop or knowledgeable audio/video dealer and have them program it for you.
When I initially bough mine, I had the same problem. It wouldn't shut down, but occasional popping sound on the center speaker. Turns out the impedance on the speaker was 4 ohms, not not 8. Replaced center with an o 8ohm speaker. This receiver is not reated to run 4 ohm speakers. If I had problems with 1, I can only imagine what kind of problems could happen if all the speakers were 4-ohms.