Learning Event 5: Adjust 1500 CPS

Level Radar, Adjust Power Supply and Center Current, and Synchronize
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Now, use this checklist

review

the

location

the

following

components and controls.

Control indicator group/power supply group (Figure 3).

Synchronizer-generator electronic marker SN-386/FPN-40 (Figure 28).

Synchronizer-generator

SN-386/FPN-40

release

handles

and

INTERLOCK

switch (Figure 29).

Power supplies test points and controls on SN-386/FPN-40 (Figure 30).

-6 V DC test point TP1509 (Figure 31).

-6 V DC adjustment control R1610 (Figure 31).

+6 V DC test point TP1509 (Figure 32).

+6 V DC adjustment control R1620 (Figure 32).

-12 V DC test point TP1512 (Figure 33).

-12 V DC adjustment control R1630 (Figure 33).

+12 V DC test point TP1513 (Figure 34).

+12 v DC adjustment control R1588 (Figure 34).

Ground test point TP1514 (Figure 30).

+45 V DC test point TP1518 (Figure 35).

-45 V DC test point TP1519 (Figure 36).

-45 V DC adjustment control TP1599 (Figure 36).

Learning Event 5:

ADJUST 1500 CPS

Learning Event 5 will enable you to identify and locate the components

used to adjust the 1500 CPS voltage level, and to identify and understand

the function of the interlocks.

The 1500 CPS voltage level adjustment is

performed to ensure proper voltage level of the 1500 CPS sine wave, which is

applied to the data take-off circuitry.

The location and initial settings of the components and controls used

in this learning event are given below.