Discovery 3300 user
New member
Hi all,
I have a Discovery 3300 off warranty, purchased new from Radio Shack in 2007. It worked fine last year. It was kept over the past winter in an unheated porch (subject to below freezing temperatures but kept dry). Putting in new alkaline batteries powers up the unit but no buttons work, and I cannot power down except by pulling the batteries.
The left side battery alone powers the unit up. The right hand battery appears to do nothing, alone or paired. Regardless, no buttons work. The display shows "all metal", plus the full battery and sensitivity bars.
Both new batteries test over 9 V and are in good condition.
The symptoms do not change when pressing on the batteries to ensure good contact with the terminals.
Do you have any suggestions as to how I can make the thing startup and work correctly? The manual only says to check the batteries. There does not appear to be a reset button or anything similar.
I have a Discovery 3300 off warranty, purchased new from Radio Shack in 2007. It worked fine last year. It was kept over the past winter in an unheated porch (subject to below freezing temperatures but kept dry). Putting in new alkaline batteries powers up the unit but no buttons work, and I cannot power down except by pulling the batteries.
The left side battery alone powers the unit up. The right hand battery appears to do nothing, alone or paired. Regardless, no buttons work. The display shows "all metal", plus the full battery and sensitivity bars.
Both new batteries test over 9 V and are in good condition.
The symptoms do not change when pressing on the batteries to ensure good contact with the terminals.
Do you have any suggestions as to how I can make the thing startup and work correctly? The manual only says to check the batteries. There does not appear to be a reset button or anything similar.