Sony KF-50XBR800 Service Manual page 67

1) Before adjustment, set the following adjustment conditions in
each mode.
Adjustment conditions
Category
P-BOOST1 0
MCP-ADJ1 2
3
VID ADJ 1
2
3
2) Connect an oscilloscope to the CN702 pin 3 (TP743) on the
BB board.
1) Enter the RF color bar (75%) signal, and set the PICTURE
MODE to "Vivid".
2) Set the adjustment conditions in 1. Preparation, and further set
the following data.
Adjustment conditions
Category
2103-1 22
23
2103-2 22
23
3) Press the [TWIN] button on the remote commander to display
color bar on the left and right two screens.
4) Measure the waveform, and adjust so that a difference between
black level and white level is 1.25 Vp-p 1 STEP.
Adjustment positions
Category
Left screen 2103-1
Right screen 2103-2
.25 Vp-p
Item Data
BSET 0
GDRV 45
GCUT 30
GAM 0
DCTN 0
DPIC 0
Item Data
ATPD 0
DCTR 0
ATPD 0
DCTR 0
tem
2 SCON
2 SCON
5) After the adjustment finished, return the data set in 2) to origi-
nal values, and write the data by pressing the [MUTE] + [EN-
TER] buttons on the remote commander.
1) Enter the 1/2 window signal, and set the PICTURE MODE to
"Vivid".
2) Set the adjustment conditions in 1. Preparation, and further set
the following data.
Adjustment conditions
Category Item
2103-1 22
23
2103-2 22
23
3) Press the [TWIN] button on the remote commander to display
the STEP signal on the left and right two screens.
4) Measure the waveform, and adjust so that a difference between
black level and white level is 1.55 Vp-p 1 STEP.
Adjustment positions
Category
Left screen 2103-1
Right screen 2103-2
.55 Vp-p
5) After the adjustment finished, return the data set in 2) to origi-
nal values, and write the data by pressing the [MUTE] + [EN-
TER] buttons on the remote commander.
Data
ATPD 0
DCTR 0
ATPD 0
DCTR 0
tem
2 SCON
2 SCON