Try making sure that there are no keymoves or macros assigned to the Vol- button. In TV mode,
1) Press Setup until 2 blinks
2) Enter 994 (2 blinks) [this is the keymove command]
3) Press Vol-
4) Press Vol- again
The remote should blink twice.
1) Press Setup until 2 blinks
2) Enter 995 (2 blinks) [Macro command]
3) Press Vol-
4) Press Setup until 2 blinks
The remote should blink twice.
9XX commands instructions