Question about Onkyo TX-DS747
Sounds like you have an intermittent problem?
Could be as simple as cold solder connections, as this is very common on older receivers and electronics.
If your not a tech, this is not a repair for you to play with as it can cause more damage to the unit.
If you don't care to open and if you know how to solder , tap around with an insulated tool or a wooden tool and see if you can get the problem to happen ,
If you see the problem connection, just touch with the solder rods on the connection, REMEMBER you must know how to solder as well as de solder. If you don't know how to solder , take the unit into a shop to be repaired.
Please leave me comment, if you need futhur assistance
Posted on Sep 28, 2009
Sorry to heard that your are having issues with your TX DS747.
This problem is the most difficult one to repair, as the failure cannot be duplicated and the parts are expensive, most owners of this equipment decides to replace it. This problem may be caused by a Integrated circuit, perhaps the origin was overheating issues, cold solder or even defect in manufacture (No one can find exactly why). Also, there is no guarantee that fixing this unit will work fine again.
According to the data that you provided, I believe the main board have one or more parts overheating causing the erratic behavior.
To have it fixed, the manufacturer request to send the part back to them and the cost may be the same as getting a new one from e-bay. If you want to fix it by yourself, you will get a headache to determine exactly what is the source of the problem and find that IC's are expensive ($45.USD at least) and difficult to find.
Anyway, check the user manual, determine if the equipment still under warranty. I recommend you to contact the manufacturer for assistance. Perhaps they appreciate you as customer and may give you a rebate or something to keep a customer happy.
Posted on Sep 27, 2009
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Posted on Jan 02, 2017
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