
Maintenance—T yp e 3 2 4
Horizontal Amplifier Troubleshooting Chart.
Initial setup: VOLTS/DIV at 5 DIV CAL; POSITION controls “ in” and centered; TIME/
DIV at 1 mS; TRIGGER at + AUTO; Trfg/Horiz Coupling switch at INT-AC; POWER — ON.
Sweep
crowded
on left of CRT
Yes
No
No
No
/ Check \
-•CSwp Gen cktS
0 4 4 0 .
0 4 5 1 ,
JQ453, Q 457
Q 460,
0 4 6 4 .
Fig. 4*7. Horizontal Amplifier troubleshooting chart.
Vertical Preamplifier and Output Amplifier Troubleshooting Chart. Initial setup: VOLTS/OIV at 5 DIV CAL; POSITION controls “ in”
and centered;
TIM E/DIV at 1 mS; TRIGGER at + AUTO, Trig/Horiz Coupling switch at INT — AC; POWER — ON.
Fig. 4-8. Vertical circuit troubleshooting chart.
4 -1 0