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Auto Convergence Setting; Blue Offset Adjustment; White Balance Adjustment - Sony KP-FWS57M90 Service Manual

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KP-FWS57M90
RM-1007

3-11. AUTO CONVERGENCE SETTING

This adjustment must be performed after the registration adjust-
ment was made or after readjustment was made by any reason.
1.
Darken the periphery of this set.
2.
Receive the 50Hz (PAL) signal.
3.
Set in the service mode.
4.
Press "
(AUTO CONVERGENCE)" button on the front
panel of the set.
(The offset value is now automatically stored.)
5.
Check that no error message appears.
If an error message appears, recheck.
6.
Enter the NTSC monoscope signal, and perform the same
steps in the PAL modes respectively.

3-12. BLUE OFFSET ADJUSTMENT

This adjustment item must be ending the G2 adjustment .
1.
Input the HD (1080i/60Hz Black) signal into component in
terminal.
2.
Set PICTURE 100%, others are normal, DRC1250/60Hz.
3.
Adjust with SLN so that the blue reference pulse peak volt-
age of B terminal (CN1504) enters into standard.
GND (0V)
V
Item : DEF2 03 SLN
4.
Write the adjustment value in the NVM area of widezoom
mode after the adjustment.
BLUE REFERENCE PULSE
(UG board CN1504 B5 B)
2.15 ± 0.05V

3-13. WHITE BALANCE ADJUSTMENT

1. Connect the W/B adjustment jig (12C BUS).
2-1. Set "PICTURE MODE" TO "DYNAMIC", and adjust
PIC 01 COL (65) = 0
PIC 02 BRI (50) = 50
2-2. Receive video monoscope pattern.
2-3. Adjust sub-BRT (service item COLOR 08 SBRT) to make
10 IRE slightly glimmer.
3.
Receive HD WHITE signal, set to DYNAMIC mode.
Adjustment service mode
PIC 01 COL (65) = 0
PIC 02 BRI (50) = 50
LUMA 02 GAMMA = 3 b 0
LUMA 06 BLK = 3 b 0
COLR 02 RDRV
COLR 03 GDRV (34:FIX)
COLR 04 BDRV
COLR 05 RCUT
COLR 06 GCUT (31:FIX)
COLR 07 BCUT
Standard valiue
Color temperature : Hilight & Cutoff
12000K - 8 MPCD
CS100 : adjusting value
X = 0.274, Y = 0.273
W/B adjustment spec
H/L : within 1 JND (center) 100 IRE
C/O : within 2 JND (center) 22 IRE
4.
Adjustment Sub-BRT
Receive video monoscope (60 Hz) signal.
Set to DYNAMIC mode.
Set PIC 00 PIC 100 b 00
Set PIC 03 BRI = 50
Adjust Sub-BRT (service item COLR 08 SBRT) to make 10
IRE stair step of monoscope slightly glimmer.
Adjust COLR 08 SBRT
After adjustment finish, Return each setting data to orignal
data.
– 74 –

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