Hitachi 50gx49b Service Manual page 34

3. Reception Impossible with Snow Noise
Main
Picture
Reception impossible with snow noise
3
Yes
No
Sub Picture (PIP)
Yes
Vcc (Sv), BP (W), and
No
It06
D118,1912
Yes
pulse (Clock, Data, Enable) 1
No
w
1001
UlOl
Tuner 1
I
Yes
LOCK pin of U102
*
u102
(Tuner 2)
voltage applied to pins
Vcc (Sv), BP (5v), and
Yes
1
No
i