- 24 -
2-5. The screen display has a problem for
Scan FFC.
(1) It s may be a problem between Scan FFC and Y B/D.
(2) Check the connection of Y B/D and Scan COF.
(3) If the Scan IC is failed, replace the Y DRV B/D.
[
Screen Display Form
[
Check a method of SCAN IC
Change the Vpp Pin into ANODE and GND Pin into CATHOD
and then test the Diode with forward or reverse direction.
2-6. The screen has a vertical line with
regular gap.
(A vertical stripe flash at especial color)
(1) This is a problem about control B/D.
(2) Replace Control B/D.
[
Screen Display Form
2-7. 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
one eighth
of screen
The screen display is very good
The screen display is a poor
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>
Содержание PFM-42V1E
Страница 48: ...SCHEMATIC DIAGRAM 48 1 DSUB AD9888 ...
Страница 49: ... 49 2 SCALER ASI510 ...
Страница 50: ... 50 3 MEMORY ...
Страница 51: ... 51 4 FLI2310 ...
Страница 52: ... 52 5 VPC3230D ...
Страница 53: ... 53 6 CXA2171AQ BA7657 CONNECTOR ...
Страница 54: ... 54 7 MICOM ...
Страница 55: ... 55 8 POWER ...
Страница 56: ... 56 9 AUDIO ...
Страница 57: ... 57 10 OPTION ...
Страница 58: ...Sep 2003 P NO 3828TSO063A Printed in Korea ...