TDA080 Troubleshooting Guide

No Power:

• Make sure unit is plugged in
• Turn power switch on
• Check fuse
• Check transformer for 12VDC output
• Check continuity of switch
• Plug transformer into known good circuit board

Switch light on, no feed or cut:

• Remove and reseat circuit board
• Replace circuit board

Won't feed / Tape jam:

• With machine turned off, manually roll the knurled feed roller (312). If it turns more than 1/8 of a turn, the gear (427) should be replaced.
• Remove the cutting head (550) and check for pieces of tape stuck on the blade or inside the cutter.
• Remove the silicon roller holder (533). Check machine and roller holder for tape. Check for missing, torn or cracked silicone rollers, replace.
• Check green, magnetic gear (528) on feed motor for slippage.
• Wipe down feed roller and blades with IPA
• Make sure the blade is all the way down and the cutter pin slides into the slot on the blade, not under the blade

Won't cut/ Gear noise:

• Remove blade spring (257) from cutter head. Inspect blade guides (258/259) and housing (507) for wear
  and/or damage. Replace as needed.
• Inspect cutting blade (254) for wear.
• Remove front holder (518) and check for tape stuck in gears.
• Inspect gears for missing teeth/wear.