Testing fuse and LED transformer
Step 1 – Remove screws on top (4 screws) and bottom (2 screws) of cover.
**When removing the cover, carefully pull it away from the unit but be careful because the LCD display is still plugged in. Pull the cover away and unplug the LCD screen. (as pictured below)
Step 2 – Unplug all wire leads and Remove the Computer Board (1 screw on top and bottom)
Step 3 – Remove Computer Board from Housing (4 screws)
Step 4 – Put in New Fuse (5 amp glass type fuse)
Step 5 – Test LED Display Transformer (Should be around .06 ohm). Test blue and brown wire that runs to computer board.
Step 6 – Replace transformer and LED Panel (1 screw on each side)