5. The screen display has a problem for Scan7. A data copy is happened into vertical
FFC.direction
(1) OIts may be a problem between Scan FFC and Y board.(1) In this case, itOs due to incorrect marking of scan wave.
(2) Check the connection of Y board and Scan COF.(2) Replace a Y DRV board or Y SUS board.
(3) If the Scan IC is failed, replace the Y DRV board.
* Screen Display Form
* Screen Display Form
one eighth
of screen
Display PatternCase 1 : Entire Copy
The screen display is very good
The screen display is a poorCase 2 : Top CopyCase 3 : Bottom Copy Case 4 : Entire Copy
* Check a method of SCAN IC
8. The screen has one or several vertical line
(1) In this case, It isnOt a problem about controller board
or X board.
(2) It may cause followings.
. ItOs out of order a panel
. Open or short of DATA COF FPC attached panel
. ItOs out of order a DATA COF attached panel
(3) Replace Module.
* Screen Display Form
It may show several vertical
Change the Vpp Pin into ANODE and GND Pin intolines in a quarter or other
CATHODE and then test the Diode with forward ordivision part of screen
including left case.
reverse direction.
6. The screen has a vertical line with regular9. The screen has one or several horizontal line
gap. (A vertical stripe flash at especial color)(1) In this case, it isnOt a problem about controller board or
(1) This is a problem about control board.X board.
(2) Replace Control board.(2) It may cause followings.
. ItOs out of order a panel
* Screen Display Form. Open or short of SCAN FPC attached panel
. ItOs out of order a SCAN IC attached panel
(3) Replace Y DRV board
* Screen Display Form
It may show several horizontal
lines including left case.
The screen has a vertical line
with regular gap
3-12PFM-42V1/42V1A/42V1E/42V1P |