SRJV Lot No. 1 Modification for JV-80/880

What’s Involved

Soldering, SMT soldering, de-soldering (optional)

Material and Tools Required

  • One of any below material:
    • 1x SMT resistor in 0603 or 0805 package, range 0 Ohm to 10 kOhm
    • 1x through hole resistor range 1 kOhm to 10 kOhm
    • thin wire
  • Soldering equipment

Operation Steps

  1. Desolder or destroy U2. Discard U2
  1. Depending on material available, do one of the following:
  • If you have thin wire: Solder a wire link between inside pad of R1 and pin 3 of U2 (or inside pad of C7, if you destroyed the pads of U2 along with its body). Finish.
  • If you have suitable SMT resistor: Solder a suitable (0603 or 0805, 0R to 10k) SMT resistor between pin 2 and pin 3 of U2. This can be done easily with hot air gun. 5.1k 0603 resistor shown. Finish.
  • If you have suitable through hole resistor: Solder a suitable (1k to 10k) through hole resistor between C8/C9’s inside pad to “RST” pad on production header. Finish.