Sony KV-SW252M50 Service Manual ▷ View online
– 29 –
KV-SW252M50/M80
RM-GA002
Reserved
Not used
3D OSD
(BX1L Full version GA Multi
0 = Normal with 3D Intelligent Picture OSD
Destination ONLY)
1 = Disable 3D Intelligent picture OSD
3D Comb
3D comb feature
0 = Comb Not available
1 = Comb available
1 = Comb available
PiP
PiP feature
0 = PiP Not Available
1 = PiP available
1 = PiP available
OSD Language Selection US (GA NTSC)
1x1x = Complicated Chinese
1xxx = Simplified Chinese
1xxx = Simplified Chinese
GA
x1xx = Arabic/Russian
x1xx = Arabic/Russian
xx1x = Thai
xxx1 = Persian/Vietnamese
x1xx = Arabic/Russian
xx1x = Thai
xxx1 = Persian/Vietnamese
No. OPB6
Item
Reserved
3D OSD
3D Comb
PiP
OSD Language Selection
DEC
KV-SW252M50
0
0
0
0
0
1
0
0
4
(India)
KV-SW252M80
0
0
0
0
0
1
0
0
4
(India)
KV-SW252M80
0
0
0
0
0
1
0
0
4
(Middle East)
KV-SW252M80
0
0
0
0
0
1
0
0
4
(Saudi Arabia)
No. OPB5
Signal Booster
Signal Booster feature
0 = disabled, 1 = enabled
MSYS ASD
(ASD Improvement for
0 = disabled, 1 = enabled
M System channels)
*Only applicable when ASD = 1
*Only applicable when ASD = 1
COSMIC ASD
Automatic Standard Detection
0 = disabled, 1 = enabled
Using COSMIC (Non-Stereo)
ASD
(Automatic Standard Detection)
0 = disabled, 1 = enabled
Tilt
(Tilt Correction/PIC Rotation)
0 = disabled, 1 = enabled
Band Edge
(VHF-H band Limit Position)
0 = 427.25MHz, 1 = 429.25MHz
IP Plus
(Intelligent Picture &
0 = disabled, 1 = enabled
Intelligent Picture Plus)
Wide
(Wide Mode/V-Compressed)
0 = disabled, 1 = enabled
Item
Signal
MSYS
COSMIC
ASD
Tilt
Band
IP
Wide
DEC
Booster
ASD
ASD
Edge
KV-SW252M50
1
0
0
0
1
0
1
1
139
(India)
KV-SW252M80
1
0
0
0
1
0
1
1
139
(India)
KV-SW252M80
1
0
1
0
1
0
1
1
171
(Middle East)
KV-SW252M80
1
0
1
0
1
0
1
1
171
(Saudi Arabia)
– 30 –
KV-SW252M50/M80
RM-GA002
3-3. PICTURE QUALITY ADJUSTMENT
3-3-1. P MAX / CONTRAST ADJUSTMENT
1. Set TV to Video mode.
2. Set Picture mode to “CUSTOM”.
3. Input PAL 100% Color Bar to TV set (OTHER model)
2. Set Picture mode to “CUSTOM”.
3. Input PAL 100% Color Bar to TV set (OTHER model)
and NTSC 75% Color Bar (NTSC model).
4. Set the following condition:
Picture 100%, Color 0%, Brightness 50%.
5. Connect an oscilloscope to pin 4 (R output) of CN004.
6. Go to service mode and set PICT 003 “PWL” to 00h and
6. Go to service mode and set PICT 003 “PWL” to 00h and
WHBL 017 “BLBG” to 01h.
7. Select SADJ 000 “PMAX” with 1 and 4 button of the
commander then adjust VR with spec with 3 and 6
button until reach the spec below:
button until reach the spec below:
8. Then copy the adjusted PMAX data to TV mode.
9. Select Wide mode to “ON” in TV and Video mode and
9. Select Wide mode to “ON” in TV and Video mode and
write “PMAX” data -6 steps
(for models with V-Compression features only).
(for models with V-Compression features only).
10. Press [MUTING]
t - to write the data.
11. Set “PWL” and “BLBG” back to initial data.
(“PWL” : 01h and “BLBG” : 00h).
12. Finally press [MUTING]
t - to write the data.
3-3-2. SUB COLOR ADJUSTMENT
1. Set TV to Video mode.
2. Set Picture mode to “CUSTOM”.
3. Input PAL 100% Color Bar to TV.
4. Set the following condition:
2. Set Picture mode to “CUSTOM”.
3. Input PAL 100% Color Bar to TV.
4. Set the following condition:
Picture 100%, Color 50%, Brightness 50%, Hue 50%
and Sharpness 50%
and Sharpness 50%
5. Set PICT 006 “WTS” to 00h.
6. Connect an oscilloscope to pin 2 (B output) of CN004 A
6. Connect an oscilloscope to pin 2 (B output) of CN004 A
Board.
7. Select SADJ 004 “SCOL” with 1 and 4 button of the
commander then adjust with 3 and 6 so that
VB2=VB3=VB4 (for PAL) then write in the data as below:
VB2=VB3=VB4 (for PAL) then write in the data as below:
Add 2 steps to “SCOL” (PAL) – 25"
Add 3 steps to “SCOL” (PAL) – 29"
Add 6 steps to “SCOL” (PAL) – 34"
Add 3 steps to “SCOL” (PAL) – 29"
Add 6 steps to “SCOL” (PAL) – 34"
8. Copy “SCOL” 50(PAL) video data to “SCOL” 50 (SECAM)
video.
9. Then copy “SCOL” 50(PAL) video data and “SCOL”
50(SECAM) video data to “SCOL” 50(PAL) and “SCOL”
50(SECAM) TV table.
50(SECAM) TV table.
10. For NTSC model input NTSC 75% Color Bar to TV and
repeat step no. 4 to 6.
11. Select SADJ 004 “SCOL” with 1 and 4 button of the
commander then adjust using 3 and 6 so that
VB1=VB4 then write in the data as below:
VB1=VB4 then write in the data as below:
Add 5 steps to SCOL (NTSC) – 25"
Add 4 steps to SCOL (NTSC) – 29"
Add 6 steps to SCOL (NTSC) – 34"
Add 4 steps to SCOL (NTSC) – 29"
Add 6 steps to SCOL (NTSC) – 34"
12. Copy “SCOL” 60(NTSC) video data to “SCOL” 60(NTSC)
TV .
13. Finally copy “SCOL” 50(PAL) and “SCOL” 60(NTSC) data
to “SCOL” 50(PAL) and 60(NTSC) in DVD mode.
14. Then press [MUTING]
t - to write the data.
15. Set PICT 006 “WTS” back to original data.
3-3-3 SUB HUE ADJUSTMENT
1. Set TV to Video mode.
2. Input NTSC 3.58 Color Bar to TV set.
3. Set the following condition:
2. Input NTSC 3.58 Color Bar to TV set.
3. Set the following condition:
Picture 100%, Color 50%, Brightness 50%, Hue 50%,
Sharpness 50%.
Sharpness 50%.
4. Connect oscilloscope to pin 2 (B output) of CN004.
5. Set to service mode and select SADJ 001 “SHUE”
5. Set to service mode and select SADJ 001 “SHUE”
(except SW252M60K and SW292M60K) and YC 013
"TINT" (SW252M60K and SW292M60K) with 1 and 4
button then adjust to VB1=VB2=VB3=VB4 using 3 and
6 button.
"TINT" (SW252M60K and SW292M60K) with 1 and 4
button then adjust to VB1=VB2=VB3=VB4 using 3 and
6 button.
6. Press [MUTING]
t - to write the data.
7. Select TV channel with NTSC 3.58 and perform step 3
to 6.
8. For single system model with NTSC 4.43, select TV
channel with NTSC 4.43 and perform step 3 to 6.
9. Once adjustment is completed in Video mode, carry out
adjustment in DVD mode. Input NTSC 3.58 Color Bar.
10. Connect oscilloscope to pin 2 (B output) of CN004.
11. Set to service mode and adjust service item YC 013
11. Set to service mode and adjust service item YC 013
“TINT” with 1 and 4 button until VB1=VB2=VB3=VB4.
12. Press [MUTING]
t - to write the data.
Illustration 1
The highest level of VB1, VB2, VB3 and VB4 should
be aligned at the same line.
The ideal difference between VB2 and VB3 is within + 80mV.
VR
Black
VR
PAL
34"
29"
25"
NTCS
1.85 0.03Vpp
1.57 0.03Vpp
1.85 0.03Vpp
VB2 = VB3 = VB4 (for PAL)
VB1
VB2 VB3 VB4
VB1 = VB4 (for NTSC)
(Difference is within 70mV)
VB1 VB2 VB3 VB4
VB1
VB2
VB3 VB4
80mV
– 31 –
KV-SW252M50/M80
RM-GA002
3-3-4 SUB BRIGHT ADJUSTMENT
1. Set TV to RF mode.
2. Input PAL monoscope to RF mode (OTHER model) and
2. Input PAL monoscope to RF mode (OTHER model) and
NTSC monoscope (NTSC model).
3. Set Brightness to 50% and Picture to “MINIMUM” in
"CUSTOM" mode.
4. Select WHBL 010 “SBRT” with 1 and 4 button and
adjust its data using 3 and 6 button so that the Cut
Off level and slightly glimmer is as the specification
below:-
Off level and slightly glimmer is as the specification
below:-
5.
Write into the memory by pressing [MUTING]
t -.
6. Copy the adjusted data WHBL 010 “SBRT” to Video
mode.
7. Once adjustment is completed in RF and Video mode,
carry out adjustment in DVD mode. Repeat step 2 to 3.
Select WHBL 010 “SBRT” and adjust its data as the
specification below:-
Select WHBL 010 “SBRT” and adjust its data as the
specification below:-
3-4. GEOMETRY ADJUSTMENT
3-4-1. H-TRAPEZOID ADJUSTMENT
1.
Receive cross hatch/dot signal.
2.
Adjust RV1800 on C Board to make H-Trapezoid
distortion best/to obtain the center illustration shown in
Table 1.
distortion best/to obtain the center illustration shown in
Table 1.
3-4-2. NORMAL MODE 50Hz / 60Hz
1.
Input PAL Special Color Bar (SPCB) or PAL Monoscope
(OTHER model) and Video mode or NTSC Monoscope
(NTSC model) signal using a pattern generator.
(OTHER model) and Video mode or NTSC Monoscope
(NTSC model) signal using a pattern generator.
2.
Set Wide Mode to “OFF”.
3.
Select Category items listed in Table 1.
4.
Raise and Lower the data value using 3 and 6 button
to obtain the center illustration.
to obtain the center illustration.
5.
Press [MUTING]
t - to save the data into the memory.
6.
For Korea models, copy adjusted 60Hz to 50Hz. Add 6
steps to 50Hz “HPOS” and 3 steps to 50Hz “HSIZ” and
save the data.
steps to 50Hz “HPOS” and 3 steps to 50Hz “HSIZ” and
save the data.
TV size
Cut Off
Slightly Glimmer
25"
10 IRE
20 IRE + 2 steps
29"
10 IRE
20 IRE + 2 steps
34"
10 IRE
20 IRE + 2 steps
28"
10 IRE
20 IRE
32"
10 IRE
20 IRE
TV size
Cut Off
Slightly Glimmer
25"
10 IRE
20 IRE + 2 steps
29"
10 IRE
20 IRE
34"
10 IRE
20 IRE + 2 steps
28"
10 IRE
20 IRE
32"
10 IRE
20 IRE
3-4-3. WIDE MODE 50Hz / 60Hz
(V Compression Adjustment)
(V Compression Adjustment)
1.
Input PAL Special Color Bar (SPCB) (OTHER model) or
Monoscope NTSC (NTSC model) signal using a pattern
generator.
Monoscope NTSC (NTSC model) signal using a pattern
generator.
2.
Set Wide Mode to “ON”.
3.
Copy NORMAL MODE 50Hz/60Hz adjusted data for the
following items:-
GEOM: 011 VSIZ, 010 VSLP, 012 SCOR and 003 VLIN
following items:-
GEOM: 011 VSIZ, 010 VSLP, 012 SCOR and 003 VLIN
4.
Select Category items listed in Table 1 except GEOM:
003 VLIN, 010 VSLP, 011 VSIZ, and 012 SCOR and
adjust the data to obtain the center illustration.
003 VLIN, 010 VSLP, 011 VSIZ, and 012 SCOR and
adjust the data to obtain the center illustration.
5.
Press [MUTING]
t - to save the data into the memory.
6.
For Korea models, copy adjusted 60Hz to 50Hz. Add 6
steps to 50Hz “HPOS” and save the data.
steps to 50Hz “HPOS” and save the data.
– 32 –
KV-SW252M50/M80
RM-GA002
SECTION 4
DIAGRAMS
4-1. BLOCK DIAGRAM
VIF
SA
W
SIF
SA
W
MAIN
Po
w
e
r
Supply
Stdb
y
Po
w
e
r
FSS TUNER
Y
U
V
L
R
24.576MHz
D
VD in
Rear A
V
in
F
ront A
V
in
Mon out
* FM Radio Function (STEREO model)
Mon out
AV
1
AV
3
in
AV
2
in
DV
D
in
AC
in ~
110 ~ 220V
CISPR/
PFC
Rela
y
LO
W B
Stdy 3.3
A
UDIO VCC
L
A
udio Amp
AT
T
NVM
V Def
H Def
DF
DQP
VM
RGB Amp
Rot Amp
LCC Amp
6W
R
6W
L,R
H
P
EW
, Hd
L,R
V+, V
-
PWM
RGB
SIRCS
KEY
b
uttons
PLL
I/O P
o
rt
I/O P
o
rt
VIF & SIF
PO
WER
Color
Decoder
YUV
Processor
J
ungle
RGB
A
D
C
D
A
C
Stereo
,
DSP
Micro
Te
x
t
CC &
V
-chip
LED
+B
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