Akai PDP4216M, Service Manual, Page: 69 / 86

English
2-5. The screen has a vertical line with
regular gap.
(A vertical stripe flash at especial color)
(1) This problem comes from Control B/D.
(2) Replace Control B/D.
[ [
Screen Display Form
2-6. A data copy is happened into vertical
direction
(1) In this case, it’s due to incorrect marking of scan wave.
(2) Replace a Y DRV B/D or Y SUS B/D.
[ [
Screen Display Form
2-7. The screen has one or several vertical
line
(1) In this case, It isn’t a problem about controller B/D or X
B/D.
(2) It may cause followings.
- It’s out of order a panel
- Open or short of DATA TCP FPC attached panel
- DATA TCP attached on panel is out of order
(3) Replace Module.
[ [
Screen Display Form
2- 8. The screen has one or several
horizontal line
(1) In this case, it isn’t a problem about controller B/D or X
B/D.
(2) It may cause followings.
- It’s out of order a panel
- Open or short of SCAN FPC attached panel
- SCAN FPC attached on panel is out of order.
(3) Replace Module.
[ [
Screen Display Form
- 13 -
The screen has a vertical line
with regular gap
<Case 1 : Entire Copy> <Display Pattern>
<Case 2 : Top Copy>
<Case 3 : Bottom Copy> <Case 4 : Entire Copy>
It may show several vertical
lines in a quarter or other
division part of screen
including left case.
It may be shown on several
horizontal lines including
left case.
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