Digital Part - Samsung JADE LN A330J1D Series Training Manual

V. Trouble Shooting
C) Digital Part
It is difficult to check digital video signal because of too fast and small signal
Check digital video signal, Use H-sync, V-sync and Clock for basic
Each digital video ICs connected with data line, H-sync, V-sync and Clock line
Check H-sync period, V-sync period, Clock period
If period is out of spec, Change the IC
It
is
di
1
ff
Period(15.63kHz)
ic
ul
t
t
o
c
h
e
H-Sync
c
k
di
gi
t
1 Period(50Hz)
This example is Normal PAL TV signal Sync and Clock
V-Sync
1 Period(13.5MHz)
Clock