Sony KL-W9000 service manual WB Bcoi, Lens Focus Adjustment

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Adjustment Items and Procedure	Tools and	Test Points	Adjustment Places	Illustration Waveforms and Values
	Signals
White Balance Adjustment
Preparation
Set as follows.
PIX : 90%	NTSC signal generator
BRT = CENT
H WHITE = OFF	Color & chromaticity
	meter (Minolta CS-100)
1. NTSC and RGB mode color temperature ... HIGH				(NTSC 30 IRE)
1) Set the color temperature to “H”, and enter *30 IRE flat field sig-	* NTSC 30 IRE				W9000
nal to the input, and select the SERVICE mode.				W7000
				*X : 0.257 ±0.005	0.257±0.005
2) White balance in SERVICE mode		WB meter
				Y : 0Z.281±0.005	0.281±0.005
Adjust *RCOI and BCOI to satisfy the specification.
				(VGA 30 IRE)
(WB: For GCOI, fix to 31)				W7000	W9000
				*X : 0.248 ±0.005	0.248±0.005
3) Enter *70 IRE flat field signal to the input, and select the SER-	* NTSC 70 IRE		* SERVICE mode	Y : 0.265±0.005	0.265±0.005
VICE mode.			WB RCOI	(NTSC 70 IRE)
Adjust *CXA2011 No.5 RDOF and No.7 BDOF to satisfy the			WB BCOI	W7000	W9000
specification.			* SERVICE mode	*X : 0.267 ±0.003	0.267±0.003
(Fix CXA2011 No.6 GDOF to 31)			CXA2011 No. 5	Y : 0.293 ±0.003	0.293±0.003
			RDOF	(VGA 70 IRE)
				W7000	W9000
4) Repeating the steps 2) and 3), adjust so that 30 IRE and 70 IRE	* NTSC 10 IRE		CXA2011 No. 7
				*X : 0.251 ±0.003	0.251±0.003
satisfy the specification.			BDOF
				Y : 0.276 ±0.003	0.276±0.003
5) Enter *10 IRE flat field signal to the input, and select the SER-
VICE mode.				(NTSC 10 IRE)
Adjust *BIAS3 No.00 RLBS and No.01 BLBS to satisfy the				W7000	W9000
specification.				*X : 0.276	0.266
6) In the SERVICE mode, set CXA1839 No.12 Y-DC to “1”, and	*NTSC 10 STEP		* SERVICE mode	Y : 0.289	0.265
				(VGA 10 IRE)
CXA1839 No.13 DPIX to “2”.			BIAS3 No00. RLBS
				W7000	W9000
7) Enter 10-step signal to the input, and confirm that the color at			BIAS3 No01. BLBS
				*X : 0.271	0.253
each step of 0 IRE to 100 IRE is homogeneous and not extremely			* SERVICE mode
				Y : 0.275	0.263
different from other parts.			CXA1839 No. 12
8) Save the data.			Y-DC
			CXA1839 No. 13
Lens Focus Adjustment			DPX
1) Loosen a focus locking screw.
2) Adjust the lens focus.

KL-W7000/W9000RM-Y980