Sony KV-SK29M80 Service Manual ▷ View online
– 36 –
KV-SK29M80/H
RM-GA002
4-3.
PICTURE QUALITY ADJUSTMENT
4-3-1. P MAX / CONTRAST ADJUSTMENT
1. Set TV to Video mode.
2. Set Picture mode to “CUSTOM”. Color temperature:cool
3. Input PAL 100% Color Bar to TV set (OTHER model)
2. Set Picture mode to “CUSTOM”. Color temperature:cool
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, Set
6. Go to service mode and set PICT 003 “PWL” to 00h, Set
PICT 002 SOC to 03. 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:
Add 5 steps to "PMAX".
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”, “BLBG” and SOC back to initial data.
(“PWL” : 01h, “BLBG” : 00h, SOC : 00).
12. Finally press [MUTING]
t - to write the data.
4-3-2. WHTL ADJUSTMENT
(EXCEPT LATIN BRAZIL)
(This adjustment must be done after PMAX ADJ.)
1. Select VIDEO mode.
2. Receive PAL CB to TV set.
3. PAL CB: White reference:100% white
2. Receive PAL CB to TV set.
3. PAL CB: White reference:100% white
Condition:
PIC
100%
COL
0%
BRT
50%
4. Set WHBL 10 SBRT to 35, WHBL 17 BLBG to 01
(Confirm PICT 02 SOC=00 & PICT 03 PWL=01)
5. Adjust waveform at KR to within spec.
By service item : PICT 004 WHTL
* In case that WHTL already 04, KR still lower than 116Vpp
set WHTL to 04.
* In case that WHTL already 00, KR still higher than 116Vpp
set WHTL to 00.
6. Set BLBG & SBRT back to original data.
(BLBG: 00, SBRT:33)
4-3-3. 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 11 steps to “SCOL” (PAL) – 25"
Add 11 steps to “SCOL” (PAL) – 29"
Add 11 steps to “SCOL” (PAL) – 29"
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 11 steps to SCOL (NTSC) – 25"
Add 11 steps to SCOL (NTSC) – 29"
Add 11 steps to SCOL (NTSC) – 29"
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.
4-3-4. 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” or
5. Set to service mode and select SADJ 001 “SHUE” or
YC 013 "TINT" with 1 and 4 button then adjust to
VB1=VB2=VB3=VB4 using 3 and 6 button.
VB1=VB2=VB3=VB4 using 3 and 6 button.
6. Press [MUTING]
t - to write the data.
KR
Black
KR
PAL
NTSC
145 2Vpp
110 2Vpp
VB1 = VB4 (for NTSC)
(Difference is within 70mV)
VB1 VB2 VB3 VB4
KR
Black
KR=116 2Vpp
VB2 = VB3 = VB4 (for PAL)
VB1
VB2 VB3 VB4
– 37 –
KV-SK29M80/H
RM-GA002
4-4.
GEOMETRY ADJUSTMENT
4-4-1. H-TRAPEZOID ADJUSTMENT
1.
Receive cross hatch/dot signal.
2.
Adjust RV1800 on CV 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.
4-4-2. 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.
4-4-3. 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.
Category
Function
Illustration
GEOM 000
H Position
(HPOS)
GEOM 001
H Parallelogram
(HPAR)
GEOM 002
H Bow
(HBOW)
GEOM 003
Linearity
(VLIN)
GEOM 005
EW Width
(HSIZ)
Note: Adjust HSIZ
16.6 + -(SPCB) _ 50Hz
14.8 + -(PAL Monoscope) _ 50Hz
15.3 + -(NTSC Monoscope) _ 60Hz
14.8 + -(PAL Monoscope) _ 50Hz
15.3 + -(NTSC Monoscope) _ 60Hz
GEOM 006
EW Parabola/Width
(EWPW)
GEOM 007
EW Upper Corner
(UCOP)
Parabola
GEOM 008
EW Lower Corner
(LCOP)
Parabola
GEOM 009
EW Trapezoid
(EWTZ)
GEOM 011
V-Amplitude
(VSIZ)
Note: Adjust VSIZ
12.6 + -(SPCB) _ 50Hz
11.3 + -(PAL Monoscope) _ 50Hz
11.7 + -(NTSC Monoscope) _ 60Hz
11.3 + -(PAL Monoscope) _ 50Hz
11.7 + -(NTSC Monoscope) _ 60Hz
GEOM 012
S-Correction
(SCOR)
GEOM 013
V-Shift
(VPOS)
Table 1
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.
VB1
VB2
VB3 VB4
80mV
– 38 –
KV
-SK29M80/H
-SK29M80/H
RM-GA002
SECTION 5
DIA
GRAMS
5-1.
BLOCK DIA
GRAM
VIF
SAW
SIF
SAW
MAIN
Power
Supply
Stdby
Power
FSS TUNER
Y
U
V
L
R
24.576MHz
DVD in
Rear AV in
Front AV in
Mon out
* FM Radio Function (STEREO model)
Mon
out
AV1
AV3
in
AV2
in
DVD
in
AC in ~
110 ~ 220V
CISPR/
PFC
Relay
LOW B
Stdy 3.3
AUDIO VCC
L
Audio Amp
ATT
NVM
V Def
H Def
DF
DQP
H Def
DF
DQP
VM
RGB Amp
Rot Amp
LCC Amp
6W
R
6W
L,R
H
P
P
EW, Hd
L,R
V+, V-
PWM
RGB
SIRCS
KEY
buttons
PLL
I/O Port
I/O Port
VIF & SIF
POWER
Color
Decoder
YUV
Processor
Jungle
RGB
A
D
C
C
D
A
C
Stereo,
DSP
Micro
Text
CC & V-chip
LED
+B
– 39 –
KV-SK29M80/H
RM-GA002
5-2.
CIRCUIT BOARDS LOCATION
5-3.
SCHEMATIC DIAGRAM INFORMATION
Note:
•
•
All capacitors are in µF unless otherwise noted.
•
All electrolytic capacitors are rated at 50V unless otherwise
noted.
noted.
•
All resistors are in ohms.
kΩ = 1000Ω, MΩ = 1000kΩ
kΩ = 1000Ω, MΩ = 1000kΩ
•
Indication of resistance which does not have rating electrical
power is as follows.
power is as follows.
Pitch: 5 mm
Rating electrical power 1/4W (CHIP: 1/10W)
Rating electrical power 1/4W (CHIP: 1/10W)
•
: nonflammable resistor.
•
: fusible resistor.
•
¢
: internal component.
•
: panel designation or adjustment for repair.
•
All variable and adjustable resistors have characteristic curve
B unless otherwise noted.
B unless otherwise noted.
•
Readings are taken with a color-bar signal input.
no mark
no mark
: Common
(
)
: PAL
[
]
: NTSC 3.58
•
Readings are taken with a 10MΩ digital multimeter.
•
Voltage are dc with respect to ground unless otherwise
noted.
noted.
•
Voltage variations may be noted due to normal production
tolerances.
tolerances.
•
All voltage are in Volt.
•
✽
: Cannot be measured.
•
Circled numbers are waveform references.
•
: B +bus.
•
: B –bus.
•
k
: signal path.
Note: The reference number which starts with Wxxx
(eg: W003) indicates a wire to wire connection.
Note: Components marked as XX are not fitted on this
model.
Reference information
RESISTOR
RESISTOR
: RN
METAL FILM
: RC
SOLID
: FPRD
NONFLAMMABLE CARBON
: FUSE
NONFLAMMABLE FUSIBLE
: RS
NONFLAMMABLE METAL OXIDE
: RB
NONFLAMMABLE CEMENT
: RW
NONFLAMMABLE WIREWOUND
:
✽
ADJUSTMENT RESISTOR
COIL
: LF-8L
MICRO INDUCTOR
CAPACITOR
: TA
TANTALUM
: PS
STYROL
: PP
POLYPROPYLENE
: PT
MYLAR
: MPS
METALIZED POLYESTER
: MPP
METALIZED POLYPROPYLENE
: ALB
BIPOLAR
: ALT
HIGH TEMPERATURE
: ALR
HIGH RIPPLE
Note:
The component identified by shading and
mark
mark
! are critical for safety. Replace only
with part number specified.
Note: "A" board schematic diagram is divided into 7
blocks. Each block is named by its function and
block "number". eg: Processor (Block 001).
Joint connection between boards can be identified
using the block number followed by the grid's guide.
block "number". eg: Processor (Block 001).
Joint connection between boards can be identified
using the block number followed by the grid's guide.
eg:-
<
IIS_WS
002:8F
Meaning: Block 001 joint IIS_WS is connected to
Block 002 joint IIS_WS located at grid 8F.
Block 002 joint IIS_WS located at grid 8F.
A Board
CV Board
H2 Board
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