Read Sharp 37VT-26H Service Manual online
37VT-26H(GY)
62
Circuits to be checked:
»
IC801 and its Adjacent Circuit
»
R. G. B. Output Circuit
FLOWCHART NO. 2-10
NO SPECIFIC COLOUR (PAL)
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 Q1802 and its
adjacent circuits.
The picture colour is
red or cyan.
Check Q1801 and its
adjacent circuits.
The picture coloour is
blue or yellow.
Check Q1803 and its
adjacent circuits.
IC801
X801 (16.2MHz)
Specific colours are not produced in
colour broadcast reception.
Circuits to be checked:
»
IC801 and its Adjacent Circuit
»
R. G. B. Output Circuit
FLOWCHART NO. 2-11
NO SPECIFIC COLOUR (NTSC)
NO
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 Q1802 and its
adjacent circuits.
The picture colour is
red or cyan.
Check Q1801 and its
adjacent circuits.
The picture colour is
blue or yellow.
Check Q1803 and its
adjacent circuits.
IC801, X801(16.2MHz)
YES
Is the mode AV1,
AV2, or PB?
This model is not
suport NTSC colour at
broadcast.
Specific colours are not produced in
colour broadcast reception.
