Hitachi SM0063 Service Manual page 63

2-12. A center of screen is darker than
a edge of screen at full white pattern.
(1) In this case, it's a problem about Z B/D ramp wave.
(2) Check the connection cable of Z B/D and CTRL B/D.
(3) Replace the Z B/D.
[ [ Screen Display Form
2-13. It doesn't display a specified
brightness at specified color
(1) Check the connector of CTRL B/D input signal.
(2) Replace the CTRL B/D.
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