Epson PX-8 Technical Manual page 235

Disassemble LCD
panel. Examine as-
sembly of board, Ze-
bra, and panel for any
problem, and check
for dirt. Clean dirt
and/or readjust as-
sembly if necessary.
Check continuity of
FPC cable signal lines
between cable end
and SED1130 pins.
3.2
Disassemble LCD
panel. Examine as-
sembly of board, Ze-
bra, and panel for any
problem, and check
for dirt. Clean dirt
and/or readjust as-
sembly if necessary.
Replace SED1120s
(X1 to X8) for missing
columns.
5-34
Check the output signal
line of SET 1120 which
has relation with illegal
display function.
y
Replace SED1120s to
left of that for
missing column.
REV.-A