Table  4-3.  Balancer  Test  Point  Measurements Location   Peak-to-Peak   (mV) A TP1 TP8 TP12 TP11 TP2 TP14 TP13 TP3 285 to 315 285 to 315 76 to 84 95 to 105 95 to 105 475 to 525 570 to 630 2850 to 3105 B TP1 TP8 TP12 TP11 TP2 TP14 TP13 TP3 36 to 44 36 to 44 63 to 77 79 to 99 79 to 99 540 to 550 540 to 660 2700 to 3300 C TP1 30 to 40 TP8 30 to 40 TP12 63 to 77 TP11 810 to 990 TP2 81 to 99 TP14 450 to 550 TP13 5400 to 6600 TP3 2700 to 3300 NOTE:  READING  SPECIFIED  ARE  THE  APPROXIMATE PEAK-TO-PEAK mV INDICATIONS EXPECTED NOT IN- TENDED  FOR  CALIBRATION  PURPOSES. 4-12.  Phazor   Tests.   These   tests   will   determine   the operational  capability  of  the  Phazor.  Perform  per- formance checks (a) thru (p) only when directed by troubleshooting procedure Table 4-17 or when applic- ble. a. Perform Phazor resistance checks as applicable with Table 4-4. Figure 4-7 shows the location of Phazor test  points. b. Remove rear cover by removing four screws. CAUTION Disconnect +28 vdc power source before making  resistance  checks  with  multimeter. TM   55-4920-402-13&P Table 4-4. Phazor Power Supply Resistance Checks c. Voltage Test. (1) Connect +28 vdc power supply only to Balancer as shown in Figure 4-8. (2) Use VOM to measure voltages at test points in Table 4-5. Table  4-5.  Phazor  Voltage  Checks d.  Sample  Command  Test. (1) Connect Balancer and test equipment as shown in Figure 4-8. (2) Set FUNCTION switch A, R.P.M. RANGE switch  to  X10,  and  INTERRUPTER  LOGIC  switch  to SINGLE. (3) Connect oscilloscope to function generator output and set up function generator for a square wave output of 600 m. peak-to-peak at 41.7 Hz ± 1 Hz. (4) Disconnect oscilloscope from function generator and connect to TP3 (Figure 4-7). Verify that oscilloscope indication is a + 5 volt spike at 41.7 Hz. (TEST switch depressed). e. Phase-Lock Loop Tests. (1) Connect Balancer and test equipment as shown in Figure 4-8. Change 4 4-8.3/(4-8.4 blank)