Hitachi CP-S830W - Page 15

CP-S830W
CP-S830E
Picture is not displayed only
when the VIDEO signal ts
input
Is
picture
displayed both
selected VIDEO1 and
VIDEO2?
Is
the 1/2
selected signal
changed at pin © of
PVID on the PWB ass'y
Input terminal
VIDEO?
Is
the 1/2
selected signal
changed at pin @ of l211
on the PWB ass'y
YES NO
© "L"=VIDEO1, "H"=VIDEO2
(" H "=5V)
PWB ass’y input terminal VIDEO
PWB ass’ drive
YES
Qt
'H'=2
("H"=5V)
Is
a voltage
input at pin @ of
PVDI on the PWB ass'y PWB ass'y signal
input terminal
VIDEO?
YES @+5V
PWB ass'y signal
Input signals
output at pins D, @, ©
of PVDI on the PWB ass'y
input terminal
VIDEO?
PWEB ass'y input
terminal VIDEO
YES @ Video signal
® Y signal
© C signal
PWB assy signal
“(5s