Horizontal Sweep

TB 11-6625-2713-50

16. Horizontal Sweep

a. Performance Check

(1) Connect digital voltmeter (A3) between case of A3A2Q19 (fig. 4) and chassis

ground, using leads and adapter supplied with digital voltmeter. If digital voltmeter does

not indicate between -0.24 and -0.26 volt, perform b(1) below.

(2) Move positive lead to A3A5TP1 (fig. 5). If voltage indication is not between

+0.64 and +0.66, perform b(2) below.

(3) Move positive lead to case of A3A5Q17 (fig. 5). If digital voltmeter does not

indicate between -0.24 and -0.26 volt, perform b(3) below.

Figure 5. Delay trigger and sweep adjustments.

(4) Set TI horizontal mode switch to EXT-HOR and center spot on horizontal

graticule centerline.

(5) Move positive lead and connect between A1A1A2Q7 collector and chassis

ground. If digital voltmeter does not indicate between 48.8 and 50.2 volts, perform b(4)

below.

(6) Disconnect positive lead and pull out PULL X10 VERNIER control.

If spot

shifts from graticule centerline, perform b(5) below.

b. Adjustments

(1) Adjust A3A2R2 (fig. 4) for -0-25 volt indication on digital voltmeter (R).