Sharp 29F-PE550 - Page 39

29F-PE550 / 29F-PD570
4 - 6
NO SPECIFIC COLOUR
Is only RF signal's colour
abnormal ?
Check tuner TU 251,
SF 202 and its related
circuit.
YES
NO
NO COLOUR
COLOUR PRODUCED
Adjust the colour
control at the user
MENU. Does colour
appear ?
Go to CHANNEL
SETTING at the user
MENU and change
to the appropriate
colour system. Does
the colour appear ?
NO
Set the
appropriate
colour level.
Set the
appropriate
colour system.
YES
YES
Using a PAL colour
bar signal, check the
RGB in & out line
between IC 1100 and
IC 851. Does the
waveforms normal ?
NO
Check IC 851, IC
1100 and its related
circuit.
NO
B