The Shop saidIs the resistor missing from the unit or just open/burnt? If missing or color codes unreadable then we would just draw a schematic of the surrounding circuits and figure out the correct value. If the resistor is open/burnt then cut it in half and remove the metal caps at the end being sure to leave the other metal cap on the end, be careful you only get 1 shot at this. Then measure the resistance from the end to middle and you will be in the ballpark by one of the 2 pieces. If you can't figure it out then send the unit to us.Thanks
—> Purchase or Repair:
If you need your Smith Geosource unit tested or repaired, 
give us a call at 1-336-969-0110.
  We offer free estimates and extended warranties on the work performed.
  Shipping/Receiving:
  Industrial Electronic Repair
  
  145 Rockwell Place Ct
  Tobaccoville, NC 27050
  Phone: 1-336-969-0110
Industrial Electronic Repair
                145 Rockwell Place Ct
                Tobaccoville, NC 27050
                🚑 Rush repair shipments only — no walk-ins.
Industrial Electronic Repair
                931-E S. Main St #204
                Kernersville, NC 27284
                📦 Mailing Address (for invoices or shipped repairs)
No walk-ins accepted.
—> Purchase or Repair: