Sharp VT-G14 - Page 67

67
VT-G14
VT-G21
Circuits to be checked:
» IC801 and its Adjacent Circuit
» R. G. B. Output Circuit
FLOWCHART NO. 2-12
NO SPECIFIC COLOUR (NTSC)
NO
NO
YES
YES
YES
NO
Is there a chroma signal
at pin (42) of IC801 ?
Check IF Circuit and
adjacent parts.
Is the white balance
properly adjusted ?
Is some colour
produced in B/W
broadcast reception ?
Readjust the white
balance.
The picture colour is
green or magenta.
Check Q1801 and its
adjacent circuits.
(Q1802 for VT-G14)
The picture colour is
red or cyan.
Check Q1802 and its
adjacent circuits.
(Q1801 for VT-G14)
The picture colour is
blue or yellow.
Check Q1803 and its
adjacent circuits.
IC801, X801
(16.2MHz)
Specific colours are not produced in
colour broadcast reception.