Local repair shop tried replacing the digital processing chip (DSP), and failed by over heating the sub board.
I want to replace the subboard myself.
How do I get the right part?
I assume the sub board is a snap in, connect repair.
Do I need to ship unit to a authorized dealer?
It is past warrenty period, Im sure.
Give my toll free phone numbers to call.
I live in California
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your digital board is bad. Try this: turn the unit on, hold the display button and press power, there should be some front panel buttons that are + and -, press these to cycle through showing the different firmware versions. It should start out at MAIN the next one should be DSP, if the DSP shows nothing but ?????????, than Q3001 on the digital board is bad and you will need to replace the board
It depends on what wrong is with the receiver. If there is bad DSP (digital surround sound processing) board better to buy new receiver. If it is just bad channel it can be repaired below or about hundred dollars. It could be also just simple cold soldering joints. You need to bring it to a repair shop and get an estimate.
These units *(if I remember correctly) had a problem with a memory IC in the surround porcessing section that would show up initially as popping and would eventually end up with no sound at all. This is a straightforward repair that involves replacing the IC with a new one (different manufacturer). The problem is that this is a surface mounted IC and is difficult to replace without damaging the underlying PC board. This is NOT a DYI repair. Have this unit checked by an authorized Onkyo service center.
I can only assume that the unit either produces noise or no sound at all. The DSP board contains all of the digital processing circuits. Even with all surround processing turned of, the signal still passes through this board. It is possible to repair the board, but special tools and techniques are required and most shops are not set up for that level of repair. Unfortunately, the safest option is to replace the board. Inquire whether or not there is a "core" charge. This means that there is some value to the bad board that can be refunded to you upon its return to the manufacturer. With a $300 board, you may be able to recover up to $100 by returning the defective board.
I have the same reciever, and had the same problem. Contact Onkyo, this is a known issue where defective DSP chips were used and manifest problems with a popping / clicking sound when using surround settings. These receivers also have a Dolby Digital input issue that can cause audio dropouts when watching cable or SAT broadcasts that encode DD using a 'newer' broadcast encoding methods. Onkyo is covering the cost of that repair for me now, even though the receiver is 5 years old now....
I have the exact same amplifier with what sounds like the exact same problem. I opened up the amplifier, and while it was powered on started tapping around until I heard the popping and crackling suddenly increase. I was using a piece of wood and the plastic part of a screw driver for this. The popping and crackling suddenly burst out onto all channels when I was tapping on the DSP board (encased in a metal enclosure to the very right of the amplifier).
I took off the metal enclosure (with the receiver turned off, of course :), and with the receiver on, and started tapping around the DSP board, and I found that the biggest crackling effect was achieved when I tapped on the Cirrus Logic CS493292-CL chip which does all the decoding and switching.
I detached and took out the DSP board and looked at it very carefully but of course couldn't find any bad connections. I tried resoldering all the feet of the Cirrus Logic chip and many many components all around to no avail.
Finally I tried applying pressure to the chip while the popping was going on, and it stopped. Further investigation revealed that bending the board around the chip produced the same effect.
For the life of me I couldn't figure out why bending the board eliminates the problem, but my solution was to put a piece of eraser wrapped in masking tape and taped to the Cirrus Logic chip, and two other pieces on the back of the board in such a way that when the metal enclosure was replaced onto the board, it put gentle but firm pressure onto the Cirrus Logic chip and at the same time bent the DSP board slightly.
It's been a few days without popping, clicking or static, but time will tell. Good luck!
Some models of Onkyo had problems with memory chips on the DSP boards (digital processing). Replacing these chips usually resolved the problem. These chips are surface mounted and are not the easiest to replace. This should be done by a trained tech. Expect this type of repair to run about $150-$200.
Have you made sure the receiver's INPUT SELECTOR is set to "Video 2"? I know it seems like a stupid question, but worth mentioning as many folks would set the receiver on TV, which would not work unless the signal was also plugged into a "TV input" in back of the receiver. If your setting is correct, try running the TV cable sound temporarily into the receiver's DVD input, which we know does work. If you still don't get cable TV sound when the receiver is set to "DVD", then you have a problem with the TV cable audio portion. Most receivers would fail completely, rather than have only one input fail, so my guess is that there is a hookup or switching error somewhere.