3. A Missing Color
One color is
missing
No
Is input signalCheck video signal
normal?cable or video card.
0.7Vpp
Yes
Is the
output of pre-amp
No
Trouble in IC801 or its
(IC801, TDA9210)
ambient circuit
pin 16,18, 20 all
normal?
Yes
Is video
CRTTrouble inYes
Nooutput IC(IC802,
Cathode (Rk, Gk, Bk)video output
TDA9536)
is normal?circuit or RK, GK, BK
normal?
ambient
About 40V p-p
Yes
No
Each grid (G1, G2)
Replace Video output IC
voltage normal?
Yes
No
Trouble in 100Vdc line
Replace CRT
19 |