Akai LEA-19V07P, Service Manual

Page: 12 / 34

PC mode
7
、
Function Trouble
（
PC
）
Picture is not
in center
Missing color,
deflection color
Picture
dithering
No signal
Check if the R.G.B
input signal of U12 is normal
Y N
Check if the signal of
V-sync,H-sync is OK
Y N Y N Y N
Do “auto adjust”
process
Do “reset” process
on the menu
Check the circuit of
R.G.B input
Check the circuit
of VS.HS
Do “reset” process
on the menu or
the input mode
can’t be supported
Check the circuit
of VS.HS
12