Table of Contents
Advertisement
POWER ON
Color bar which the chroma signal and the
burst signal are turned off.
Mode
POWER ON
Color bar which the chroma signal and the
burst signal are tured off
Measurement
point
Measurement
;
CN004
Pin @ (B)
point
Check on the LCD screen
Measuring
instrument
Adjustment
Measuring
;
Oscilloscope
instrument
P
Adjustment
RV003
element
Specified
Specified
value
value
Screen should not be colored.
2.60.1 Vp-p
[Connection]
1)
Adjust with RV003 so that the voltage between white
:
back light.
(100%) and the pedestal is 2.6+0.1V.
[Adjustment Method]
r
White (100%)
1)
Check that the LCD screen is not colored. If the screen is
26+0.1V
colored, adjust with RV003 (B gain) and RV005 (R gain).
i
os
Pedestal
!
7-8. fsc Adjustment (RG-24 board)
Video signal which the chroma signal, the
{
burst signal and the Y signal are turned
off.(Video
signal with only synchronous
signal)
1C002 Pin ©
Fig. 7-5
7-6. Sub Bright Adjustment (RG-24 board)
POWER ON
Signal
Color bar which the chroma signal and the
g
burst signal are turned off
Measurement | CN004 Pin @, Pin @ and Pin @
point
(G)
(R)
(B)
Measuring
instrument
Speers
—3.4+0.1V
value
Measurement
point
Measuring
instrument
Frequency counter
Adjustment
CV002
element
Specified
value
Note:
Connect
the frequency
counter
through
the buffer
amplifier
(oscilloscope,
etc) with
high
impedance
(1MQ or more) and low capacity.
(Adjustment Method]
1)
Adjust with CV002 so that the fsc frequency is 4433619+
150Hz.
[Connection]
1)
Install the LCD unit and perform the adjustment.
[Adjustment Method]
1)
Adjust with RV009 so that the DC level of the pedestal
part of the positive polarity G signal is —3.4+0.1Vdc.
2)
Adjust with RV007 so that the DC level of the pedestal
part of the positive polarity R signal is —3.4+0.1Vdc.
3)
Adjust with RV008 so that the DC level of the pedestal
part of the positive polarity B signal is —3.4+0.1Vdc.
OVde
3
—3.41t0.1V
pa
Pedestal
Sepereeny
| pees
Fig. 7-6
ce) ae
Advertisement
Table of Contents
