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Model
KV-SA28M36
Pages
86
Size
7.79 MB
Type
PDF
Document
Service Manual
Brand
Device
TV
File
kv-sa28m36.pdf
Date

Sony KV-SA28M36 Service Manual ▷ View online

– 33 –
KV-SA28M36
RM-W107
3. Using the 
1
 and 
4
 buttons select, category GEOM
(service mode) Raise/lower data using the 
3
 and 
6
buttons to adjust the following items:-
Service Item
GEOM: 000
HPOS
HORIZONTAL SHIFT (HS)
001
HPAR
HORIZONTAL
PARALLELOGRAM
002
HBOW
HORIZONTAL BOW
003
VLIN
VERTICAL LINEARITY
005
HSIZ
EW WIDTH (EW)
006
EWPW
EW PARABOLA/WIDTH
(PW)
007
UCOP
EW UPPER CORNER
PARABOLA
008
LCOP
EW LOWER CORNER
PARABOLA
009
EWTZ
EW TRAPEZIUM
010
VSLP
VERTICAL SLOPE (VS)
011
VSIZ
VERTICAL AMPLITUDE
012
SCOR
S-CORRECTION (SC)
013
VPOS
VERTICAL SHIFT (VSH)
4. For Korea models only:
a) For GEOM items, copy adjusted 60Hz to 50Hz
b) Add 6 steps to 50Hz "HPOS" item and save data.
c) Add 3 steps to 50Hz "HSIZ" item and save data.
WIDE MODE (50Hz)
(V-Compression Adjustment)
1. Input SPCB signal(For NTSC models select Video
mode)
2. Adjust condition to WIDE MODE : ON.
3. Copy (item from NORMAL MODE (50Hz) adjusted
data for the following items:
Service Item
GEOM: 003
VLIN
VERTICAL LINEARITY
005
HSIZ
EW WIDTH (EW)
011
VSIZ
VERTICAL AMPLITUDE
012
SCOR
S-CORRECTION (SC)
4. Raise/lower data using the 
3
 and 
6
 buttons, select
and adjust the following item to obtain optimum image.
Service Item
GEOM:
000
HPOS
HORIZONTAL SHIFT (HS)
001
HPAR
HORIZONTAL
PARALLELOGRAM
002
HBOW
HORIZONTAL BOW
005
HSIZ
EW WIDTH (EW)
006
EWPW
EW PARABOLA/WIDTH (PW)
007
UCOP
EW UPPER CORNER
PARABOLA
008
LCOP
EW LOWER CORNER
PARABOLA
009
EWTZ
EW TRAPEZIUM
013
VPOS
VERTICAL SHIFT (VSH)
5. For Korea models only:
a) Copy adjusted 60Hz data to 50Hz
b) Add 6 steps to 50Hz "HPOS" item and save data.
7. Copy PMAX data to TV models.
8. Select "WIDE" mode for TV & Video mode,  Write the
data as below:
ADJUSTED PMAX VALUE : X
9. Set the PWL & BLBG back to (PWL: 01h and
BLBG: 00h)
YOUTPUT LEVEL ADJUSTMENT
1. Input a color with bar with 100IRE white signal to pin
1
 (CVBS) of CN2001 BC board.
2. Set to service mode and select 3D NR Bus data with
1
 and 
4
 of the commander.
3. Press [MUTING] 
-
 to write the data to TC90A88F.
PICTURE CONFIRMATION
1. Input a color bar with 100IRE white signal to pin 1
(CVBS) of CN2001 BC board.
2. Confirm no dot structure can been seen and the
picture is normal on the screen.
3. Input signal RAMP to pin 1 (CVBS) of CN2001 BC
board.
4. Confirm no vertical stripes, no noise can be seen and
the picture is normal on the screen.
5. Adjust RV2001 (BC board) so that the output level of
CN2001 (BC board) pin 3 (YOUT) is within spec.
3-4. DEFLECTION ADJUSTMENT
TILT CORRECTION ADJUSTMENT
(Picture Rotation Models Only)
1. Press [MENU] button on the remote commander.
2. Select [SETUP] and [PIC ROTATION].
3. Picture will rotate while pressing [f+,F-]. Make top
and bottom horizontal line parallel to edge of screen.
4. Press [TEST] + [NORMAL] button to set center
position.
H-TRAPEZOID ADJUSTMENT
1. Receive cross hatch/dot signal
2. Adjust RV750 on C-Board to make H-Trapezoid
distortion best.
NORMAL MODE (50Hz)
1. Set to Service Mode.
2. Input SPCB Signal (For NTSC models select Video
mode)
INCH
SA28
SA32
VIDEO MODE
TV MODE
FULL NORMAL FULL NORMAL
X
X-6
X
X-6
1.4 
± 0.05 Vpp
– 34 –
KV-SA28M36
RM-W107
NORMAL MODE (60Hz)
1. Input 525/60Hz signal.
2. Using the 
1
 and 
4
 buttons select category GEOM
(Service Mode.)
3. Raise/ lower data using the 
3
 and 
6
 buttons to
obtain optimum image.
Service Item
GEOM:
000
HPOS
HORIZONTAL SHIFT (HS)
001
HPAR
HORIZONTAL
PARALLELOGRAM
002
HBOW
HORIZONTAL BOW
003
VLIN
VERTICAL LINEARITY
005
HSIZ
EW WIDTH (EW)
006
EWPW
EW PARABOLA/WIDTH
(PW)
007
UCOP
EW UPPER CORNER
PARABOLA
008
LCOP
EW LOWER CORNER
PARABOLA
009
EWTZ
EW TRAPEZIUM
010
VSLP
VERTICAL SLOPE (VS)
011
VSIZ
VERTICAL AMPLITUDE
012
SCOR
S-CORRECTION (SC)
013
VPOS
VERTICAL SHIFT (VSH)
WIDE MODE (60Hz)
(V-Compression Adjustment)
1. Input Monoscope signal
2. Adjust condition to WIDE MODE : ON.
3. Copy (item from NORMAL MODE 60Hz) adjusted
data for the following items:
Service Item
GEOM: 003
VLIN
VERTICAL LINEARITY
010
VSLP
VERTIVAL SLOPE (VS)
011
VSIZ
VERTICAL AMPLITUDE
012
SCOR
S-CORRECTION (SC)
4. Raise/lower data using 
3
 and 
6
 buttons, select and
adjust the following item to obtain optimum image.
Service Item
GEOM: 000
HPOS
HORIZONTAL SHIFT (HS)
001
HPAR
HORIZONTAL
PARALLELOGRAM
002
HBOW
HORIZONTAL BOW
005
HSIZ
EW WIDTH (EW)
006
EWPW
EW PARABOLA/
WIDTH (PW)
007
UCOP
EW UPPER CORNER
PARABOLA
008
LCOP
EW LOWER CORNER
PARABOLA
009
EWTZ
EW TRAPAZIUM
013
VPOS
VERTICAL SHIFT (VSH)
3-5. PICTURE DISTORTION ADJUSTMENT
H. CENTER ADJUSTMENT (HPOS)
1. Input Monoscope signal.
2. Activate the Service Mode.
3. Select the HPOS item with 
1
 and 
4
.
4. Adjust the value of HPOS with 
3
 and 
6
 for the best
horizontal center.
5. Press [MUTING] then 
-
 to save into the memory.
H. SIZE ADJUSTMENT (HSIZ)
1. Input Monoscope signal.
2. Activate the Service Mode.
3. Select HSIZ with 
1
 and 
4
.
4. Adjust with 
3
 and 
6
 for the best horizontal size.
5. Press [MUTING] then 
-
 to save into the memory.
(
)
(
)
– 35 –
KV-SA28M36
RM-W107
V. SIZE ADJUSTMENT (VSIZ)
1. Input Monoscope signal.
2. Activate the Service Mode.
3. Select theVSIZ item with 
1
 and 
4
.
4. Adjust value of VSIZ with 
3
 and 
6
 for the best
vertical size.
5. Press [MUTING] then 
-
 to save into the memory.
V. CENTER ADJUSTMENT (VPOS)
1. Input Monoscope signal.
2. Activate the Service Mode.
3. Select VPOS item with 
1
 and 
4
.
4. Adjust value of  VPOS with 
3
 and 
6
 for the best
vertical size.
5. Press [MUTING] then 
-
 to save into the memory.
V. LINEARITY (VLIN), S CORRECTION (SCOR), EW
PARABOLA/WIDTH (EWPW), AND EW TRAPEZIUM
(EWTZ) ADJUSTMENTS
1. Input Monoscope signal.
2. Activate the Service Mode.
3. Select VLIN, SCOR, EWPW, and EWTZ with 
1
 and
4
.
4. Adjust with 
3
 and 
6
 for the best picture.
5. Press [MUTING] then 
-
 to save into the memory.
EW TRAPEZIUM (EWTZ)
EW PARABOLA/WIDTH (EWPW)
S CORRECTION (SCOR)
VERTICAL LINEARITY (VLIN)
HORIZONTOL PARALLELOGRAM (HPAR), H BOW
(HBOW), UPPER PIN (UCOP) AND LOW PIN (LCOP)
ADJUSTMENTS
1. Input Monoscope signal.
2. Activate the Service Mode.
3. Select the HPAR, HBOW, UCOP, and LCOP with 
1
and 
4
.
4. Adjust with 
3
 and 
6
 for the best picture.
5. Press [MUTING] then 
-
 to save into the memory.
EW UPPER CORNER PARABOLA (UCOP)
EW LOWER CORNER PARABOLA (LCOP)
HORIZONTOLPARALLELOGRAM (HPAR)
HORIZONTOL BOW (HBOW)
– 36 –
KV
-SA28M36
RM-W107
SECTION 4
DIA
GRAMS
4-1.
 BLOCK DIA
GRAM
VIF
SAW
SIF
 SAW
MAIN
Power
Supply
Stdby
Power
FSS TUNER
AV
Switch
3D
COMB/NR
SUB
FSS
TUVIF
G/Y
B/PB
R/PR
L
R
24.576MHz
DVD in
Rear AV in
 Front AV in
Mon out
Main CV
L,R in
Mon
out
AV
1,2
in
AV
1
in
RGB/
DVD
in
AC in ~
110-220V
RGB out 42-44
VM 64
VD + 107
VD – 104
EWD 108
LSL 69
LSR 68
118 XTAL OUT
119 XTAL IN
40 C1
71 CVBS / Y1
L, R
CISPR/
PFC
Relay
LOW B
Stdy 3.3
AUDIO VCC
FBT
L
2ch
10W
Tweeter
10W
Tweeter
Audio Amp
ATT
NVM
Pin out
H-drive
H-out
V-out
DF/DQP
VM
RGB Amp
Rot Amp
LCC Amp
feedback
R
L,R
H
P
EW, Hd
V+, V-
PWM
RGB
SIRCS
Key 
buttons
PLL
YC out
Center in
SUB
Picture
CV/Y
UV in
PIP
I/O Port
I/O Port
VIF & SIF
POWER
Color
Decoder
YUV
Processor
Jungle
RGB


C


C
Stereo,
DSP
Micro
Text
CC & V-chip
L
E
D
+B
ID
Centre
in
VIFIN1 105
VIFIN2 104
32 SIRCS
10 KEY
6 Green Led
7 Red Led
21 SCLO
22 SD
A
O
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