KV-XR34M50 - Sony TV Service Manual (repair manual). Page 12

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KV-XR34M80,/50/XR34M81/XR34N60
RM-W104
RM-W103
RM-W150
2-4. G2 (SCREEN) ADJUSTMENTS
1. Set the  PICTURE to Normal.
2. Put the VIDEO input mode without signals
3.  Connect R,G,B of the  C board cathode to the
oscilloscope.
4. Adjust cathode voltage to the value below.
5. Adjust G2 (screen) on the FBT until picture shows the
point before cut off.
Cathode setting voltage:
170 V 
± 2 (VDC)
2-3. FOCUS ADJUSTMENT
FOCUS adjustment should be completed before W/B
adjustment.
(Except 34")
1. Receive digital monoscope pattern.
2. Set "Picture Mode" to "DYNAMIC".
3. a) Adjust focus VR so that the center of screen
becomes just focus(29", 34").
b) Adjust focus VR so that the lion teeth
becomes just focus(25").
4. Change the receiving signal to white pattern and blue
back.
5. Confirm Magenta ring is not noticeable. Incase
Magenta ring is obvious, adjust FOCUS VR to balance
between MAGENTA RING and FOCUS.
FLYBACK TRANSFORMER  (T503)
Focus
Screen
2-5. WHITE BALANCE ADJUSTMENT
1. Set to Service Mode (Refer Section 3-1:
ADJUSTMENTS WITH COMMANDER).
2. Input white raster signal.
3. Set Picture to DYNAMIC.
i. Set PICT 006 WTS to 00h (all models except AR2
series).
ii. For AR2 set OPTB 006 OPB 6 to 00.
4. Select WHBL 002"RDRV" and the value to 37
5. Select WHBL 003"GDRV" and 004 "BDRV"and adjust
the data for the best white balance in highlight
condition.
6. Adjust WHBL 000 "BKOR" and 001 "BKOG"and adjust
the data for best white balance cut-off condition.
7. Write into the memory by pressing [MUTING] then 
-
.
8. Write offset data for other mode.
After adjustment, please reset:
i. OPTM 006 – OPB 6 to original data (AR2 series).
ii. PICT 006 – WTS to original data (All models except
AR2 series)
Adjust
Offset
Offset
18000
t 12363 t 9300
BKOR
–2
–3
BKOG
+1
+2
RDRV
0
0
GDRV
–3
–8
BDRV
–8
–18
SUB BRIGHT ADJUSTMENT
1) Set to service mode.
2) Brightness set to 50%, Picture: Minimum.
3) Select WHBL SBRT with 
1
 and 
4
, and adjust 'SBRT'
data with 
3
 and 
6
 so that the third stripe from right
dimly lit.
4) Write into the memory by pressing [MUTING] then 
-
.
5. Models cut-off: 0 IRE (25" and 34")
10 IRE (29")
Slightly Glimmer: 10 IRE (25" and 34")
20 IRE (29")
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