Sony KDL-19L4000 / KDL-26L4000 Service Manual ▷ View online
- 12 -
3-3. White Balance adjustment
1.
Allow approximately 30 minutes for the set to warm up
before proceeding with the white balance adjustment.
before proceeding with the white balance adjustment.
2.
Connect the signal source to the 3 terminals of the
Component In input (Y/Pb/Pr).
Component In input (Y/Pb/Pr).
3.
Set the Picture Mode to “VIVID” in the user menu.
4.
Select the Component In input.
5.
Open the Factory Service Menu (see section 3-1.) and select
“Service Alignments Menu”.
“Service Alignments Menu”.
6.
Set “White Point Red”, “White Point Green”, “White Point
Blue” and “Black Level Offset Red”, “Black Level Offset
Green”, “Black Level Offset Blue” to average values as
shown in Table 1.
Blue” and “Black Level Offset Red”, “Black Level Offset
Green”, “Black Level Offset Blue” to average values as
shown in Table 1.
3-3-1. Preparation
Table 1
Red
Green
Blue
Red
Green
Blue
Gain
Gain
Gain
Offset
Offset
Offset
Cool
122
119
127
0
7
3
Neutral
127
117
113
1
6
2
Warm
127
107
73
2
6
2
1.
Select “COOL” from Color Tone in Service Alignments
Menu.
Menu.
2.
Input 70IRE full white pattern signal into Component In.
3.
Adjust “White Point Red”, “White Point Green”, “White Point
Blue” in Service Alignments Menu if needed.
Blue” in Service Alignments Menu if needed.
4.
Input 25IRE full white pattern signal into Component In.
5.
Adjust “Black Level Offset Red”, “Black Level Offset Green”,
“Black Level Offset Blue” in Service Alignments Menu if
needed.
“Black Level Offset Blue” in Service Alignments Menu if
needed.
6.
Repeat steps 2 to 5 to achieve desired White Balance.
3-3-2. “Cool ” White Balance Adjustment
1.
Select “NEUTRAL” from Color Tone in Service Alignments
Menu.
Menu.
2.
Input 70IRE full white pattern signal into Component In.
3.
Adjust “White Point Red”, “White Point Green”, “White Point
Blue” in Service Alignments Menu if needed.
Blue” in Service Alignments Menu if needed.
4.
Input 25IRE full white pattern signal into Component In.
5.
Adjust “Black Level Offset Red”, “Black Level Offset Green”,
“Black Level Offset Blue” in Service Alignments Menu if
needed.
“Black Level Offset Blue” in Service Alignments Menu if
needed.
6.
Repeat steps 2 to 5 to achieve desired White Balance.
3-3-3. “NEUTRAL ” White Balance Adjustment
1.
Select “WARM” from Color Tone in Service Alignments
Menu.
Menu.
2.
Input 70IRE full white pattern signal into Component In.
3.
Adjust “White Point Red”, “White Point Green”, “White Point
Blue” in Service Alignments Menu if needed.
Blue” in Service Alignments Menu if needed.
4.
Input 25IRE full white pattern signal into Component In.
5.
Adjust “Black Level Offset Red”, “Black Level Offset Green”,
“Black Level Offset Blue” in Service Alignments Menu if
needed.
“Black Level Offset Blue” in Service Alignments Menu if
needed.
6.
Repeat steps 2 to 5 to achieve desired White Balance.
7.
Save the settings.
3-3-4. “WARM ” White Balance Adjustment
- 13 -
4-1. BLOCK DIAGRAM 1 (19 inches)
TV Control
Source Select
3D-Comb
Digital Color Decoder
Audio Decoder
Full Audio Processing
MPEG2 Decoder
4-Field MA DI
10bit Video Processing
Enhanced PQ Processing
Single LVDS Output
HDMI/DVI
CI
Source Select
3D-Comb
Digital Color Decoder
Audio Decoder
Full Audio Processing
MPEG2 Decoder
4-Field MA DI
10bit Video Processing
Enhanced PQ Processing
Single LVDS Output
HDMI/DVI
CI
Tuner
ENG37E10KF
PNX8541
Channel Decoder
TDA10048HN
DDR2 64MB x 2
EDE5116AJBG-6E-E
NAND FLASH 64MB
NAND512W3A2CN6E
SPI FLASH 128KB
M25P10
CA
PCMCIA Slot
DUAL LVDS
OUTPUT
1680x1050
Side CVBS + L/R in
Y/Pb/Pr + L/R in
PC in
SCART1 in/out
SCART2 in/out
HDMI SWITCH
CXB1444R
AUDIO SWITCH
CD4052BPW
HDMI1
HDMI2
PC AUDIO IN
DVI AUDIO IN
KEY in
IR in
OP AMP
NJM4556AM
OP AMP
NJM4558AM
OP AMP
NJM4558AM
OP AMP
NJM4558AM
HEADPHONE
OUTPUT
SCART AUDIO
OUTPUT
AUDIO LINE
OUTPUT
CLASS D AMP
TFA9810T/N1
SPEAKERS
NVM 8KB
M24C64
LVDS
TRANSIMITTER
THC63LVD823
- 14 -
4-1. BLOCK DIAGRAM 2 (26 inches)
TV Control
Source Select
3D-Comb
Digital Color Decoder
Audio Decoder
Full Audio Processing
MPEG2 Decoder
4-Field MA DI
10bit Video Processing
Enhanced PQ Processing
Single LVDS Output
HDMI/DVI
CI
Source Select
3D-Comb
Digital Color Decoder
Audio Decoder
Full Audio Processing
MPEG2 Decoder
4-Field MA DI
10bit Video Processing
Enhanced PQ Processing
Single LVDS Output
HDMI/DVI
CI
PNX8541
Channel Decoder
TDA10048HN
DDR2 64MB x 2
EDE5116AJBG-6E-E
NAND FLASH 64MB
NAND512W3A2CN6E
SPI FLASH 128KB
M25P10
CA
PCMCIA Slot
LVDS output
1366x768
Side CVBS + L/R in
Y/Pb/Pr + L/R in
PC in
SCART1 in/out
SCART2 in/out
HDMI SWITCH
CXB1444R
AUDIO SWITCH
CD4052BPW
HDMI1
HDMI2
PC AUDIO IN
DVI AUDIO IN
KEY in
IR in
OP AMP
NJM4556AM
OP AMP
NJM4558AM
OP AMP
NJM4558AM
OP AMP
NJM4558AM
HEADPHONE
OUTPUT
SCART AUDIO
OUTPUT
AUDIO LINE
OUTPUT
CLASS D AMP
TFA9810T/N1
SPEAKERS
NVM 8KB
M24C64
Tuner
ENG37E10KF
- 15 -
H1
B
G
H5 (IR & LED)
5-2. CIRCUIT BOARD LOCATION
5-3. SCHEMATIC DIAGRAMS AND
PRINTED WIRING BOARDS
PRINTED WIRING BOARDS
Note :
•
All capacitors are in µF unless otherwise noted.
•
pF : µµF 50WV or less are not indicated except for
electrolytic types.
electrolytic types.
•
Indication of resistance, which does not have one for
rating electrical power, is as follows.
rating electrical power, is as follows.
Pitch : 5mm
Electrical power rating : 1/4W
Electrical power rating : 1/4W
•
Chip resistors are 1/10W
•
All resistors are in ohms.
k = 1000 ohms, M = 1000,000 ohms
k = 1000 ohms, M = 1000,000 ohms
•
: nonflammable resistor.
•
: fusible resistor.
•
: internal component.
•
: panel designation or adjustment for repair.
•
All variable and adjustable resistors have
characteristic curve B, unless otherwise noted.
characteristic curve B, unless otherwise noted.
•
All voltages are in Volts.
•
Readings are taken with a 10Mohm digital mutimeter.
•
Readings are taken with a color bar input signal.
•
Voltage variations may be noted due to normal production
tolerences.
tolerences.
•
: B + bus.
•
: B - bus.
•
: RF signal path.
•
: earth - ground.
•
: earth - chassis.
Reference Information
RESISTOR
RN
: METAL FILM
RC
: SOLID
FPRD
: NON FLAMMABLE CARBON
FUSE
: NON FLAMMABLE FUSIBLE
RS
: NON FLAMMABLE METAL OXIDE
RB
: NON FLAMMABLE CEMENT
RW
: NON FLAMMABLE 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
Les composants identifiés par une trame et
par une marque sont d'une importance
critique pour la sécurité. Ne les remplacer
que par des pièces de numéro spécifié.
specified.
par une marque sont d'une importance
critique pour la sécurité. Ne les remplacer
que par des pièces de numéro spécifié.
specified.
Note :
The components identified by shading
and marked are critical for safety.
Replace only with the part numbers
specified in the parts list.
and marked are critical for safety.
Replace only with the part numbers
specified in the parts list.
Note :
CVM Board
A Board
S1 Board
VM
C
H
D1
A
J
A2
N
D
A1
D2
C
A
4-2. CIRCUIT BOARD LOCATION
4-3. SCHEMATIC DIAGRAMS AND
PRINTED WIRING BOARDS
PRINTED WIRING BOARDS
Note : The components identified by mark contain
confidential information.
Strictly follow the instructions whenever the
components are repaired and/or replaced.
Strictly follow the instructions whenever the
components are repaired and/or replaced.
H1
B
G
H5 (IR & LED)
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