Daewoo CMC-518X, Руководство по обслуживанию

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3. A Missing Color
13
No
No
No
No
RK, GK, BK
About 45V p-p
No
Yes
Yes
Yes
Yes
0.7Vpp
Check video signal
cable or video card.
Trouble in
IC801 or its
ambient circuit
Trouble in G1 line
and G2 line
One color is
missing
Is
input signal
normal?
Is the
output of pre-amp
IC801,
pin 15, 19, 22
all normal?
CRT
Cathode (Rk, Gk, Bk)
is normal?
Each
grid (G1, G2)
voltage
normal?
Is
video output
Q801, Q831, Q861
waveform
normal?
Trouble in
video output
circuit,
Q803, Q804
Q813, Q814
Q823, Q824
or ambient
Trouble in
65/8 Vdc line
Replace CRT
Yes