Sony KV-32XBR200 Service Manual page 28

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4. Connect an oscilloscope to CN351 pin 3 on A board.
5. Set to Service Mode and select 2COL and 2HUE with
and
.
and
6. Adjust with
flat signal.
7. After adjust write 2HUE data 4 steps down.
8. Write into the memory by pressing
(75 ohms open level)
Y LEVEL (INPUT)
B-Y LEVEL (INPUT)
R-Y LEVEL (INPUT)
P&P SUB CONTRAST ADJUSTMENT (MSCO, ISCO)
1. Input a 75% color-bar signal.
2. Set: VIDEO mode = STANDARD
PICTURE = 100%
COLOR = minimum
GON = 0 (OFF), BON = 0(OFF),
TRINITONE = medium.
3. Set P&P mode.
4. Connect an oscilloscope to CN1103 pin 4 of A board and GND.
5. Set to Service Mode and select MSCO (main window) and
ISCO (sub window) with
and
6. Adjust with
7. Write into the memory by pressing
.
SUB
for 2COL and 2HUE so that even
then
1.65Vp-p
1.05Vp-p
1.05Vp-p
and
.
for the 1.75 ± 0.05Vp-p of level.
then
1.75 ± 0.05Vp-p
MAIN
P&P SUB COLOR, SUB HUE ADJUSTMENT
(MCOL, MSHU, ICOL, ISHU)
1. Input a 75% Color-bar signal.
2. Set: VIDEO mode = STANDARD
PICTURE = 100%
COLOR = 50%
HUE = 50%,
.
TRITONE = medium.
3. Set P&P mode.
4. Connect an oscilloscope to CN1103 pin 5 of A board and GND.
5. Set to Service Mode and select MCOL , MSHU (main window)
and ICOL, ISHU (sub window) with
and
6. Adjust with
7. After adjust write MSHU and ISHU data 1 step down.
8. Write into the memory by pressing
V1 V4 V1'
V3
SUB
SUB COLOR
V1–V4= ±0.1V
V1'–V4'= ±0.1V
SUB HUE
V3–V2= ±0.1V n 1
V3'–V2'= ±0.1V n1
P&P ACQUISITION ADJUSTMENT (MAHP, MAVP)
1. Input a Monoscope signal.
2. Set PICTURE = 100%.
3. Set P&P mode and set CHANNEL INDEX mode.
4. Set to Service Mode and select MAHP and MAVP with
and .
and
5. Adjust with
6. Write the memory by pressing
NEED TO ADJUST AFTER
GEOMETRIC ADJUST
A
B
— 28 —
and
.
.
then
V4'
V3'
MAIN
STEP DOWN
STEP DOWN
for the best center (main window).
then
C A–B = ±0.2 sg
C–D = ±0.2 sg
D
.
.