TM 1-1520-238-23 9-180 9.52. PILOT INSTRUMENT PANEL MATRIX VARIABLE RESISTOR REPLACEMENT – continued 9.52.6. Installation NOTE Reference designation (REF. DES.) iden- tification locators are stenciled above each variable resistor. a. Jumper terminals 2 and 3, take readings be- tween terminals 1 and 3 of new resistor (2). Use ohmmeter and adjust applicable resistor to within 0.05 OHM as shown in Table 1 below. Table 1 Ref. Des. Resistance R-1 Set to full counterclockwise position R-2 Set to 0.8 Ohms R-3 Set to full counterclockwise position R-4 Set to 0.8 Ohms R-5 Set to 0.3 Ohms R-6 Set to full counterclockwise position R-7 Set to full counterclockwise position R-8 Set to full counterclockwise position R-9 Set to 1.0 Ohms R-10 Set to 2.0 Ohms R-11 Set to 1.0 Ohms R-12 Set to 2.0 Ohms R-13 Set to 1.0 Ohms R-14 Set to 0.2 Ohms R-15 Set to full counterclockwise position R-16 Set to full counterclockwise position R-17 Set to full counterclockwise position R-18 Set to full counterclockwise position R-19 Set to full counterclockwise position R-20 Set to 2.0 Ohms R-21 Set to full counterclockwise position R-22 Set to full counterclockwise position R-23 Set to full counterclockwise position R-24 Set to full counterclockwise position R-25 Set to full counterclockwise position GO TO NEXT PAGE 2 M04-3685-6 2 1 3