Hi, I'd like a little more info, but I may be able to help anyway based on my experience with these.... Does the T752 behave this way when using the source selector knob, or just the remote, or both? If the buttons work fine, but not the remote, check the batteries in the remote and try again. Does the remote and/or the source selector knob successfully let you select other sources? If so, the next thing to check is the sea of ribbon connector cables inside. If you've never done anything like this before, PLEASE DON'T try. Not only are there so many ribbon cables inside that you could accidently disable something else, but there is enough capacitance inside that amp to give you a REALLY nasty shock, even with it unplugged and turned off. Now, if that hasn't scared you away and you want to check, or you want to have some info for your local tech, The tuner itself is just behind the antenna plug-in on the back of the unit, in a shiny metal-shielded box. There is a wide, thin white ribbon cable running from the tuner card down to the main board underneath. Make sure both connections are firmly seated, and are in STRAIGHT, and that the bottom connector's locking clamp is in place. Oh yes, make sure to pull up on that locking clamp before re-seating the cable. The cables are fragile, prone to lose connection, especially if the receiver has been moved recently. If re-seating the cable doesn't cure the issue, a tech will need to check the source selector chip and circuitry.
Answers & Comments
Hi,
I'd like a little more info, but I may be able to help anyway based on my experience with these....
Does the T752 behave this way when using the source selector knob, or just the remote, or both? If the buttons work fine, but not the remote, check the batteries in the remote and try again.
Does the remote and/or the source selector knob successfully let you select other sources? If so, the next thing to check is the sea of ribbon connector cables inside. If you've never done anything like this before, PLEASE DON'T try. Not only are there so many ribbon cables inside that you could accidently disable something else, but there is enough capacitance inside that amp to give you a REALLY nasty shock, even with it unplugged and turned off.
Now, if that hasn't scared you away and you want to check, or you want to have some info for your local tech, The tuner itself is just behind the antenna plug-in on the back of the unit, in a shiny metal-shielded box. There is a wide, thin white ribbon cable running from the tuner card down to the main board underneath. Make sure both connections are firmly seated, and are in STRAIGHT, and that the bottom connector's locking clamp is in place. Oh yes, make sure to pull up on that locking clamp before re-seating the cable. The cables are fragile, prone to lose connection, especially if the receiver has been moved recently.
If re-seating the cable doesn't cure the issue, a tech will need to check the source selector chip and circuitry.