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– 48 –

7. Adjust values of SREG_WB_R (B) 03_OFST to be the chroma

in below table

8. Set SREG_TEST_G_LEVEL = 51 (20 IRE)
9. Adjust values of SREG_WB_R (B) 02_OFST to be the chroma

in below table.

10. Set values of SREG_WB_GAM_R (B) 01_OFST as follows;

SREG_WB_R (B) 01_OFST
= SREG_WB_R (B) 02_OFST
+ [SREG_WB_R (B) 02_OFST-SREG_WB_R (B) 03_OFST]

11. Set values of SREG_WB_R06 ~ 07_OFST and

WB_B06 ~ 07_OFST as follows
SREG_WB_R (B) 07_OFST
= SREG_WB_R (B) 05_OFST
+ [SREG_WB_R (B) 05_OFST-SREG_WB_R (B) 04_OFST]
SREG_WB_R (B) 06_OFST
= SREG_WB_R (B) 05_OFST
+ [SREG_WB_R (B) 05_OFST-SREG_WB_R (B) 04_OFST] /2

12. Send ECS command: COLOR_SAVE

When replacing the panel please reset the gamma and white balance
before performing W/B for new panel.

When replacing the BG1 board please readjust the AD and readjust
the W/B.

7. Adjust values of SREG_WB_R (B) 03_OFST to be the chroma

in the below table

8. Set SREG_TEST_G_LEVEL = 51 (20 IRE)
9. Adjust values of SREG_WB_R (B) 02_OFST to be the chroma

in the below table

10. Set values of SREG_WB_GAM_R (B) 01_OFST as follows

SREG_WB_R (B) 01_OFST
= SREG_WB_R (B) 02 OFST
+ [SREG_WB_R (B) 02 OFST-SREG_WB_R (B) 03_OFST]

11. Set values of SREG_WB_R06 ~ 07_OFST and WB_B06 ~

07_OFST as follows;
SREG_WB_R (B) 07_OFST
= SREG_WB_R (B) 05_OFST
+ [SREG_WB_R (B) 05_OFST-SREG_WB_R (B) 04_OFST]
SREG_WB_R (B) 06_OFST
= SREG_WB_R (B) 05_OFST
+ [SREG_WB_R (B) 05_OFST-SREG_WB_R (B) 04_OFST] /2

12. Send ECS command: COLOR_SAVE

1. Set up SREG_COLOR_TEMP = 3 (Warm 2)
2. Set SREG_TEST_G_LEVEL = 204 (80 IRE)
3. Adjust values of SREG_WB_R (B) 05_OFST to be the chroma

in below table

4. Set SREG_TEST_G_LEVEL = 128 (50 IRE)
5. Adjust values of SREG_WB_R (B) 04_OFST to be the chroma

in below table

6. Set SREG_TEST_G_LEVEL = 76 (30 IRE)

Internal

signal

(IRE)

SREG

_Test_G

_LEVEL

SPEC

target

46"

40"

32"

26"

20

51

0.5->0.7->1JND

.0014->.00196->.0028

0.5->0.7->1JND

.0014->.00196->.0028

0.5->0.7JND

0.0014->0.00196

0.3->0.5JND

0.0008->0.0014

0.2898 0.2869

0.2890

<-

0.2991 0.2975

0.2943

0.1929 0.1914

0.1942

0.4479 0.4465

0.4449

0.2861 0.2880

0.2887

0.2929 0.2981

0.2917

0.1926 0.1920

0.1950

0.4436 0.4471

0.4432

0.2866 0.2885

0.2895

0.2939 0.2991

0.2996

0.1926 0.1919

0.1925

0.4443 0.4477

0.4482

0.2883 0.2895

0.2934

0.2974 0.2997

0.3018

0.1925 0.1924

0.1945

0.4467 0.4483

0.4501

0.2880
0.2911
0.1947
0.4428
0.2871
0.2903
0.1943
0.4421
0.2887
0.2976
0.1927
0.4469
0.2922
0.3003
0.1942
0.4490

30

76

50

128

80

204

x

y

u'
v'

x

y

u'
v'

x

y

u'
v'

x
y

u'
v'

The target of White balance adjustment when color temperature is “Warm1”.

Internal

signal

(IRE)

SREG

_Test_G

_LEVEL

SPEC

target

46"

40"

32"

26"

20

51

0.5->0.7->1JND

.0014->.00196->.0028

0.5->0.7->1JND

.0014->.00196->.0028

0.5->0.7JND

0.0014->0.00196

0.3->0.5JND

0.0008->0.0014

0.3231 0.3191

0.3133

0.3253 0.3261

0.3130

0.2065 0.2034

0.2045

0.4679 0.4677

0.4596

0.3327 0.3238

0.3157

0.3494 0.3245

0.3090

0.2039 0.2074

0.2078

0.4818 0.4675

0.4577

0.3222 0.3326

0.3261

0.3273 0.3403

0.3283

0.2051 0.2073

0.2075

0.4688 0.4772

0.4699

0.3264 0.3136

0.3185

0.3377 0.3255

0.3182

0.2040 0.1998

0.2061

0.4749 0.4666

0.4633

0.3119
0.3097
0.2048
0.4575
0.3135
0.3069
0.2071
0.4561
0.3248
0.3271
0.2070
0.4691
0.3166
0.3161
0.2056
0.4618

30

76

50

128

80

204

x

y

u'
v'

x

y

u'
v'

x

y

u'
v'

x
y

u'
v'

The target of White balance adjustment when color temperature is “Warm2”.

– 49 –

10

9

8

4

7

5

6

3

STBY3.3V

SIRCS

D3.3V

BL_IN

STBY_LED

PICTURE_OFF

ON_TIMER

PWR

REC

2

3

2

KEY1

POWER_INT

Q303,304

LED

SW

SW

LED

Q301,302

D305

POWER

PIC OFF

D302

Q305

LED SW

D308

STANDBY

ILLUM

SENSOR

IC320

STBY3.3V

H3

(LED/OPTICAL

SENSOR)

Q320

POWER

S101

KEY

S102-S107

H1

(TOP SWITCH)

H4

(SIRCS)

SIRCS

IC401

CN401
TO BG1 BOARD
CN3008

CN101
TO BG1 BOARD
CN3008

CN351

TO BG1 BOARD

CN3008

IC8001

UT

(USB HOST MICRO)

3

2

1

8

7

50

23

12

11

22

CN8002

PANEL UNIT

TO

Q8004,8005

IC8000

Q8000

Q8003

20

Q8002

IC8002

+D3.3V

+D5V

15

11

12
14

8

10

7

5

6

2

15

56

57
14

26

58

25

29

62

64

LOG_RXD

SR_CLK

SIR_OUT

SIR_IN

LOG_TXD

HOST_ST1

HOST_ST0

RPLY_USB

INT_USB_HOST

RST_MICRO

CN8001

2,17

3,16

6

4

CN8003

TXD

RXD

MD0

RES

TO BG1 BOARD

CN3004

– 50 –

G

D

S

B1 E1

C2

B2 C1

E2

G

D

S

B2 E2

C1

B1 C2

E1

B2 E2

C1

B1 C2

E1

B2 E2

C1

B1 C2

E1

B1 E1

E2

C1(B2)

C2

B1

E2

C1

C2

(B2)

E1

(B2)

E1

E2

B1

C2

C1

B1

E1

C2

B2

C1

E2

G

S

S

D

G

D

B1

E1

C2

B2

C1

E2

B1

E2

C2

C1(B2)

E2

B1

C1

C2

E1(B2)

C2

B1

C1

E2

E1(B2)

C2

B1

C1

E2

B2

E1

C2

Transistor
(FET)

Transistor

Transistor

Transistor

Transistor

Transistor

Transistor

Transistor

Transistor

Transistor

Diode

Diode

Diode

Diode

Diode

Diode

Diode

Diode

Diode

Diode

Source

Source

Anode

Anode

(NC)

(NC)

Cathode

Anode

Cathode

Common

Cathode

Cathode

Common

Cathode

Cathode

Common

Common

Common

Common

Cathode

Anode

Base

Emitter

Collector

Base

Emitter

Collector

Drain

Gate

Gate

Drain

Device

Printed symbol

Terminal name

Circuit

Anode

Anode

Anode

Cathode

Anode

Anode

Cathode

Transistor
(FET)

Transistor
(FET)

Emitter

Collector

Base

Transistor

Source

Gate

Drain

Cathode

Anode

Anode

Cathode

Anode

Anode

Note:
•

All capacitors are in µF unless otherwise noted.(pF:µµF)
Capacitors without voltage indication are all 50V.

•

Indication of resistance, which does not have one for rating
electrical power, is as follows.

Pitch: 5 mm
Rating electrical power 1/4W (CHIP: 1/10W)

•

All resistors are in 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.

•

All voltages are in V.

•

: earth-ground

•

: earth-chassis

•

All voltages are in V.

Readings are taken with a 10 MΩ digital multimeter.

✽

k

Reference information
RESISTOR

: RN

METAL FILM

: RC

SOLID

: FPRD

NONFLAMMABLE CARBON

: FUSE

NONFLAMMABLE FUSIBLE

: RW

NONFLAMMABLE WIREWOUND

: RS

NONFLAMMABLE METAL OXIDE

: RB

NONFLAMMABLE CEMENT

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

! are critical for safety. Replace only with

Note: The components identified by mark   contain

confidential information. Strictly follow the instructions
whenever the components are repaired and /or replaced.

H1 Board

U2 Board

BG1 Board

H3 Board

G1H Board

UT Board

H4 Board

BH Board

H1 Board

U2 Board

BG1 Board

D2 Board (KLV-46D300A)

H3 Board

G3 Board

D1 Board

BH Board

UT Board

H4 Board

– 51 –

Board

Function

Note

 

BG1

I/O/Audio/Main µcon/
VSW.Trident/DDR/
HDMI.PC/
Power.DC_Alert/
Tuner.MSP

BH

HFR

D1 (40", 46")

Inverter

D2 (46")

Inverter

G1H (32")

Power Supply

G3 (40", 46")

Power Supply

 

U2

Side Input + HDMI

Due to complexity of the board, performing component
level field repair is not recommended.
If service is required, complete board replacement is
required. The schematic diagrams are no included in this
service manual. For part number information refer to the
Exploded View or Electrical Parts lists section of this
service manual.