TM 55-4920-402-13&P Table   4-17.   Troubleshooting   Procedures   (Balancer/Phazor)   (Continued) Para/Step Trouble Probable   Cause Probable   Remedy 4-lld(6), (11), (15) 4-1ld (16) 4-12c(2) 4-12d(4) 4-12e(5) Balancer-Section    (Continued) Improper  Voltages  at  TP8 Improper  Voltages  at  TP12, TP1l,  TP2,  TP14,  TP13,  TP3 Accelerometer  Input  A Circuit   Defective Filter  Loop  Circuit Defective   or   Misadjusted Improper   Voltages Table 4-5 Improper  Voltage  at  TP1 Improper  Voltage  at  TP2 Improper  Indications  at  TP3 Improper  Indications  at  TP4 Phazor-Section Defective   Components +10  vdc  Power  Supply Defective + 5 vdc Power Supply Defective Sample   Command   Circuit Phase-Lock  Loop  Defective (Magnetic   Pickup   Input Circuit) 1. U107 (Fig 4-5), S1201,(29 Fig C- 2)  and  associated components   (Fig FO-1, Sheet 1) 2. U101   through U106 (Fig 4-5), S1204 (30 Fig C- 2)  and  associated components   (Fig FO-1, Sheet 1). 3. Adjust   Balancer (Para  4-20a)  as necessary. 1. Associated   com- ponents  (Fig  FO- 2)  and  Perform as   required Para/Step   below. 2.   Q101   (Fig   4-7) and   associated components   (Fig FO-2). 3.   Q101   (Fig   4-7) and   associated components   (Fig FO-2).  If  voltage too  high  check U 101 through U107 (Fig 4-7). U102,  U103,  (Fig  4-7), U108, U109 (Fig 4-5) and  associated  com- ponents  (Fig  FO-1, Sheet  2,  and  Fig  FO- 2). U101 (Fig 4-7) and associated  com- ponents  (Fig  FO-2). Change 4 4-16.3