May 2014
Intermediate to advanced
320 pages
13h 41m
English
Content preview from Servicing Personal Computers, 3rd Edition
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1
*12V
il
il
Combined
sync input
(TTL ° *
level)
Figure 5.26. Typical waveforms in the horizontal deflection circuits
143
216
+ 15V-
27μ
τ
ΙΟΟμ
Ik
6μ8
Horiz
lin
Γ^
From line ■
driver stage
470
-— » 1=3-
«
L·
33
1N4148
10n
Horiz
flyback
transformer
100η
400V
Note:
use high-voltage
probe for this
measurement!
Figure 5.27. Typical circuitry around the CRT showing d.c. voltages
_ Vert
100 of! deflection
oj!
yoke
Figure 5.28. Typical vertical deflection system using an integrated circuit
217
Figure 5.29. Typical discrete vertical deflection circuitr ...