Sharp XV-310P Serviceanleitung Seite 19

Adjustment position
NTSC tint:
R860
Colour
saturation: R858
(su b-colour)
Sub-bias (RGB):
Common bias:
R520
20
Sub-bias (red):
RI602
Sub-bias (blue):
Adjustment condition
Receive the NTSC colour bar signal.
l
Turn the user colour and contrast
l
controls by ~10 steps toward the red
tint (-10 points).
Connect a 330-,uF capacitor, as
shown below, to drop the Y level.
Receive the NTSC colour bar signal.
l
Connect the oscilloscope between
l
TP803 and GND.
Set the colour and contrast controls
l
to + 7 points.
Receive the monoscope patter,n
l
signal.
Connect the oscilloscope between
l
TP1405 (G output) and GND.
Make this adjustment in a dark
l
room using the following tools and
instruments.
Receive the NTSC monoscope
l
pattern signal.
Receive the NTSC monoscope
l
pattern signal.
Adjustment method
Turn R860 to obtain the waveform
shown below.
To be aligned
To be aligned
Turn R858 to obtain the waveform
shown below.
75% white level
Turn RI434 so that the vertical
sync level difference between two
black portions at TP1405 be
7.8 f 0.1 VP-P.
V e r t i c a l s y n c
Adjust R520 so that the tone
contrast be maximum.
Turn RI602 and RI608 until the
best white balance can be
achieved.
aligned