Pip Sub-Hue, Sub-Color Adjustment; User Control Bar Graph Display Position Adjustment; Pip Position Adjustment - Sony KP-43T90 Service Manual

4-5.PIP SUB-HUE , SUB-COLOR
ADJUSTMENT (PYC-PHUE, PYC-PCOL)
1. Display a color bar signal through the TV's VHF/UHF input.
2. Mode: Personal 1 or 2.
PICTURE: maximum
BRIGHTNESS: center
3. Enter the service mode and select the PIP mode.
4. Connect an oscilloscope between pin 5 of CN204 (A board) and
ground.
5. Select an unused video input for the main picture (it must be black),
and select the tuner for the small picture (it must be showing
colorbars).
6. Alternately select adjustment category "PYC", adjustment item # 2
"PHUE" and item #3 "PCOL" and adjust them so that VB1 = VB4 and
VB2 = VB3 as shown below.
VB1
7. Press "MUTING" and then "ENTER" to save the adjustment data.
4-6.USER-CONTROL BAR GRAPH DISPLAY
POSITION ADJUSTMENT (OP-DISP)
1. Select the video-1 input with no signal applied (the screen should
be black).
2. Enter the service mode.
3. Press the "Volume +" button so that the volume bar graph is displayed.
4. Check to make sure the bar graph is centered on the screen
horizontally. If necessary, select adjustment category "OP",
adjustment item # 0 "DISP", and adjust so that the bar graph is
centered. Adjust the data 1 step at a time, and then display the bar
graph again to check its position.
X1
5. Write the data into memory, press "MUTING" and then "ENTER".
COLOR: center
COLORTEMP: neutral
VB2 VB3 VB4
X2
X1 = X2

4-7.PIP POSITION ADJUSTMENT

(PIP-POFV, POFH)
1. Select the PIP mode.
2. Display any signal in the PIP window.
3. Alternately select adjustment category "PIP", adjustment item # 18
"POFV" and item #19 "POFH" and adjust so that the PIP window is
equally spaced from the screen edge in each position on the screen
as shown below. Use the POSITION button on the remote to change
the screen position of the PIP window.
X1-X2 < 0.25 sq
Y1-Y2 < 0.25 sq
X1
4. Write the data into memory, press "MUTING" and then "ENTER".
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KP- 43T90 / 48V90 / 53V90 / 61V90
Y1
Y2
X2