Read Sony KV-SR25M59K Service Manual online
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KV-SR25M59K/M69K/M89K
RM-W109
2-4. G2 (SCREEN) ADJUSTMENTS
1. Set the PICTURE to Normal.
2. Go to Service mode. Set WHBL 016 RGBB lat to 01.
3. Connect R,G,B of the C board cathode to the
2. Go to Service mode. Set WHBL 016 RGBB lat to 01.
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
5. Adjust G2 (screen) on the FBT until picture shows the
point before cut off.
Cathode setting voltage:
170 V
170 V
± 2 (VDC)
2-3. FOCUS ADJUSTMENT
FOCUS adjustment should be completed before W/B
adjustment.
adjustment.
1. Receive digital monoscope pattern.
2. Set "Picture Mode" to "DYNAMIC". (Multi), Set "Picture
2. Set "Picture Mode" to "DYNAMIC". (Multi), Set "Picture
Mode to Vivid (NTSC).
3. a) Adjust focus VR so that the center of screen
becomes just focus (except 25").
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. In case
magenta ring is obvious, adjust FOCUS VR to balance
between MAGENTA RING and FOCUS.
between MAGENTA RING and FOCUS.
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. Intelligent Picture: ON.
3. Set Picture to DYNAMIC. Intelligent Picture: ON.
i. For SA & SR set OPTB 006 OPB 6 to 00.
4. Select WHBL 002"RDRV" and adjust the value to 37
5. Select WHBL 003"GDRV" and 004 "BDRV"and adjust
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 (SA & SR series).
i. OPTM 006 – OPB 6 to original data (SA & SR series).
Adjust
Offset
Offset
18000
t 12363 t 9300
BKOR
–2
–3
BKOG
+1
+2
RDRV
0
0
GDRV
–3
–8
BDRV
–8
–18
2-6. SUB BRIGHT ADJUSTMENT
1. Set to service mode.
2. Brightness set to 50%, Picture: Minimum.
3. Select WHBL 010 SBRT with
2. Brightness set to 50%, Picture: Minimum.
3. Select WHBL 010 SBRT with
1
and
4
, and adjust
'SBRT' data with
3
and
6
so that the third stripe from
right dimly lit.
4. Copy the adjusted data "WHBL" 010 SBRT in RF to
Video Mode.
5. Write into the memory by pressing [MUTING] then
-
.
6. Models cut-off: 10 IRE
Slightly Glimmer: 20 IRE + 2 steps
FLYBACK TRANSFORMER (T503)
Focus
Screen
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