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Sub-hue, Sub-color And Main Contrast; Sc-sshu,sscl); Bar Display Position Adjustment (op-disp); Pip Position Adjustment (pi-piph, Pipv) - Sony KP-XR432K90 Service Manual

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4-5. SUB-HUE , SUB-COLOR AND MAIN
CONTRAST ADJUSTMENT (MC-MYDR,
MSHU, MSCL, SC-SSHU, SSCL)
1. Receive the color-bar signal.
2. Mode
PICTURE
COLOR
BRIGHTNESS
TRINITONE
SERVICE DATA MC-MYDR
SERVICE DATA
MC-MSHU
SERVICE DATA
MC-MSCL
SERVICE DATA
SC-SSHU
SERVICE DATA
SC-SSCL
3. Set to service mode and set to P & P model .
4. Connect an oscilloscope between pin 5 of CN204 (A board)
connecter and ground.
5. Select " MC-MYDR", and adjust them to have VB1 = VB5
in the waveform levels.
6. Select " MC-MSCL, SC-SSCL" and adjust so that the wave
form shows VB1=VB4 and VB5=VB8.
7. Select " MC-MSHU, SC-SSHU" and adjust so that the wave
form shows VB2=VB3 and VB6=VB7.
8. Write the data into memory.
MUTING n ENTER
VB1
VB2
VB3
Fig. 4-5
4-6. BAR DISPLAY POSITION ADJUSTMENT
(OP-DISP)
1. Receive the monoscope signal.
2. Set to service mode.
3. Push " PICTURE +" . (Bar is displayed)
4. Select " OP-DISP " , and adjust so that the bar is as shown in
the figure.
5. Write the data into memory.
MUTING n ENTER
X1
X1 = X2
Fig. 4-6
: Personal 1 or 2.
: maximum
: center
: center
: medium
: 22
: 31
: 31
: 31
: 31
VB4
VB5
VB6
VB7
VB8
X2
4-7. PIP POSITION ADJUSTMENT
(PI-PIPH, PIPV)
1. Set the PIP mode.
2. Receive the monoscope signal on the main/sub picture.
3. Check the sub picture position.
X1-X2
X1-X2
4. If necessary set to service mode and adjust "PIPH", "PIPV".
5. Write the data into memory.
MUTING n ENTER
X1
– 22 –
KP-XR432K90/XR432N90
RM-Y906K
0.25sq
0.25sq
Y1
Y2
X2
Fig. 4-7
RM-Y906

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