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3. A Missing Color
One color is
missing
Is
input signal
normal?
Check video signal
cable or video card.
0.7Vpp
Is the
output of pre-amp
(IC801, LM1281)
pin 17, 20, 26
all normal?
Trouble in
1C801 or its
ambient circuit
Is
Trouble in
?
;
About 45V p-p
nema?
or ambient
Each
grid (g1, G2)
voltage
Trouble in
79Vdc line
normal?
No
q
;
v Yes
>
Trouble in G1 line
and G2 line
Replace CRT |
11
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