KE-42TS2E (serv.man2) - Sony TV Service Manual (repair manual). Page 9

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KE-42TS2E (HK)    2-2E
2-1-5. Video coder input adjustment
1. Input All white 30 IRE signal of SECAM to the video input
terminal.
2. Set Picture Mode into “Personal2”.
Set [Dynamic Pict] and [Color Correct] to “OFF”, and then
set [Gamma Correct] to “MID”.
(Caution) The order of 1, 2 must not be changed.
3. Select Ry Adj from the Chroma decoder menu.
4. Adjust the Ry Adj (SECAM) and then, adjust so that the
detection value of R is the same as G value.
5. Repeat step 2 to 4 until the detection values of R, G, and B
are set in the margin range.
Allwable error: ± 5
6. Input By the value calculated as below.
By = Ry – 4 (if By < 0, input 0)
2-2. White Balance Adjustment
1. Set the service mode then select White Balance menu.
2. Select Large in the Window menu to output an internal
adjustment signal.
3. Set the color temperature to “Cool”.
4. Adjust the white balance so that the color temperature is set
to the value below during R, G, and B gain adjustments.
Color Temperature: 10000K (x=0.278 y=0.286 ±0.005)
5. Set the color temperature to “Normal”.
6. Adjust the white balance so that the color temperature is set
to the value below during R, G, and B gain adjustments.
Color Temperature: 8000K (x=0.295 y=0.305 ±0.005)
7. Set the color temperature to “Warm”.
8. Adjust the white balance so that the color temperature is set
to the value below during R, G, and B gain adjustments.
Color Temperature: 6500K (x=0.314 y=0.324 ±0.005)
2-3. Adjustment of sub-color and sub-hue
(Caution)
Use SMPTE color-bar whose white is 75%.
1. Input the SMPTE color-bar signal of NTSC into AV 4.
2. Change picture mode setup into “Personal2”.
3. Turn on the Blue Only mode by service mode.
(1)
(A)
(2)
(B)
(3)
(C)
(4)
(D)
Fig. 2-3-1
4. Adjust Sub Color and Sub Hue of NTSC while looking at a
screen.
4-1. Set the value of resister as follows.
Hue (NTSC)
=37
Sub Color (NTSC)
=8
Sub Color (PAL)
=8
Sub Color (SECAM) =8
C Out Level
=10
Then adjust C Out Level so that the brightness level of
(1) and (A), (4) and (D) become the same and adjust
Sub Hue so that the brightness level of (2) and (B), (3)
and (C) become the same. Check C Out Level and Sub
Hue once again. (C Out Level, Sub Hue require tracking
several times.)
5. Input the SMPTE color-bar signal of PAL into AV 4.
Set mode into “Personal2”.
6. Adjust Sub Color of PAL while looking at a screen.
6-1. Adjust Sub Color that the brightness level of (1) and
(A), (4) and (D) become the same.
7. Input the SMPTE color-bar signal of SECAM into AV 4.
Set Mode into “Personal2”.
8. Adjust Sub Color of SECAM while looking at a screen.
8-1. Adjust Sub Color that the brightness level of (1) and
(A), (4) and (D) in the fig. 2-3-1 become the same.
9. Lose 2 steps in the adjustment value of “Sub Color (PAL)”.
10. Cancel the Blue Only mode.
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