DOWNLOAD LG 42PC5D-AB (CHASSIS:PB73B) Service Manual ↓ Size: 10.26 MB | Pages: 42 in PDF or view online for FREE

- 8 -

1) Color Analyzer : CA-100(CH 10)
2) When adjusting the PLASMA color temperature, the No.

10  channel  with  the  matrix  compensated  (White,  Red,
Green  and  Blue  compensated)  should  be  used  for  the
CS-1000  as  Color  analyzer  (CA-100),  which  should  be
adjusted  based  on  the  white  balance  adjustment
coordinate as described below.

2)  Automatic  adjuster  (necessary  for  the  automatic

adjustment, possible to communicate via the RS-232C)

3)  Video  Signal  Generator  MSPG-925F  720p,

216Gray(Model : 217, Pattern : 78)

(for automatic adjustment)

Basically it uses the internal pattern but when internal pattern
is  not  possible,  you  can  select  HDMI  input  for  adjustment.
Through  the  option  at  the  most  bottom  part  of  the  Ez  Adjust
Menu  7.White  Balance  menu,  you  can  select  NONE,  INNER
and  HDMI,  and  the  default  is  set  to  INNER.  When  the
adjustment cannot be done with the internal pattern, you can
select HDMI input for adjustment.

For manual adjustment, press the ADJ KEY of the adjustment
R/C  to  enter  Ez  Adjust  7.White-Balance,  and  the  pattern  is
automatically displayed. (When you set the Option to INNER,
the default is always set to INNER)

1)  Connect  the  set  according  to  the  internal  pattern  or  HDMI

input in accordance with 7-3 measuring device connection
diagram. 

2)  Set  the  Baud  Rate  of  RS-232C  to  115200.  It  is  set  to

115200 as default.

3) Connect the RS-232C Cable to the set.
4) Connect the HDMI Cable to the set. (Limited to the set with

HDMI option)

5)  Select  and  adjust  the  model  applicable  to  PB75A  chassis

from the adjuster.

Caution)  For  automatic  adjustment,  RS-232C  Command  and

Chassis are commonly applied

Caution) Adjustment map

* White Balance adjustment (For automatic adjustment)

- Execute Power Only Key of the adjustment R/C to execute

automatic adjustment. Set the Baud Rate to 115200.

-  Always  start  adjustment  with  “wb  00  00”  and  end
adjustment with “wb 00 ff”
- Adjust the offset if necessary.

Color Analyer

RS-232C

Full White Pattern
  (Inner pattern)

<Fig. 6> Connection diagram for internal pattern

<Fig. 7> Connection diagram for HDMI input

216Gray White Pattern
       (HDMI Pattern)

Color Analyer

MSPG-925FS

MSPG-925FS
Video Signal Generator

ideo Signal Generator

Model : 217

Model : 217
Pattern : 78

Pattern : 78

RS-232C

RS-232C
Baud Rate : 1

Baud Rate : 115200

15200

Remark

RS-232C Command

[CMD  ID  DATA]

wb

wb

wb

wb

wb

wb

00

00

00

00

00

00

00

10

1f

20

2f

ff

Start white balance adjustment

End Gain adjustment

End Offset adjustment

R Gain

G Gain

B Gain

R Cut

G Cut

B Cut

jg

jh

ji

Cool

ja

jb

jc

Mid

RS-232C COMMAND

[CMD ID DATA]

CENTER

(DEFAULT)

jd

je

jf

00

00

00

192

192

192

127

127

127

Warm

Min

Max

192

192

192

64

64

64

Cool

192

192

192

64

64

64

Mid

192

192

192

64

64

64

Warm

- 9 -

(For manual adjustment)

- Required Equipment : When adjusting the PLASMA color

temperature,  the  No.  10  channel  with  the  matrix
compensated  (White,  Red,  Green  and  Blue
compensated)  should  be  used  for  the  CS-1000  as  Color
analyzer  (CA-100),  which  should  be  adjusted  based  on
the  white  balance  adjustment  coordinate  as  described
below.

(1) Enter to ‘EZ-ADJUST’ by pressing ADJ key of R/C.
(2) HEAT RUN at least 30 minutes by pressing the ‘11. TEST

Pattern’ on the Service Remote Control and adjust.

(3) Set CA-100 in Zero Calibration, when adjust PDP module

make it contacting completely in the surface.

(4)  Select  ‘6.  White-Balance’  of  ‘Ez  -  Adjust’  by  pressing  the

ADJ KEY on the Service R/C. Then enter adjustment mode
by  pressing  the  Right  KEY  (G).  This  time  white  pattern  is
displayed.  (When  press    Gkey,  the  screen  enters  to  Full
White internal pattern.)

(5)  The  adjustment  completes  in  three  color  temperatures  as

Cool, Medium, and Warm.

(6) When R GAIN is fixed at 192:

keep G GAIN and B GAIN less than 192 and find proper
values for adjustment.

When G GAIN is fixed at 192:

keep R GAIN and B GAIN less than 192 and find proper
values for adjustment.

When B GAIN is fixed at 192:

keep R GAIN and G GAIN less than 192 and find proper
values for adjustment.

(7) Adjust using Volume +/- KEY.
(8) When the adjustment is completed, press the OK (

A

KEY)

button  to  move  to  the  Ez  –Adjust  screen.  Press  the  ADJ
KEY to exit the adjustment mode.

[Ref.] White Balance Adjustment Pixel and Color Temperature

(1) Standard white balance standard white balance coordinate

when using CS-1000 device:

(2) Directed color coordinate when using CA-100 CH 10

Brightness: Full white 216gray 

(3) Directed color coordinate when using CA-210 CH 10

Color temperature Color analyzer

Color coordinate

X

Y

COOL

CA-100

0.276±0.002

0.283±0.002

MEDIUM

CA-100

0.285±0.002

0.293±0.002

WARM

CA-100

0.313±0.002

0.329±0.002

Color temperature Color analyzer

Color coordinate

X

Y

COOL

CA-210

0.276±0.002

0.283±0.002

MEDIUM

CA-210

0.285±0.002

0.293±0.002

WARM

CA-210

0.313±0.002

0.329±0.002

Color temperature Measuring instrument

Color coordinate

X

Y

COOL

11000K,  ∆uv=0.000

0.276

0.283

MEDIUM

9300K,  ∆uv=0.000

0.285

0.293

WARM

6500K,  ∆uv=0.000

0.313

0.329

1

2

3

4

5

6

7

8

9

10

Digital

30

Off

16:9

1

Dynamic

Cool

Off

Auto

Standard

Off

0

On

On

--

Off

Off

Off

16:9

Off

Normal

Off

C0, C5, C6, S11,

C20, C35, C52, C68

C43

Item

Condition

No

Remark

Input Mode

Volume Level

Mute

Aspect Ratio

SET ID

Picture  PSM

Color Temp.

Advanced

Cinema

Black level

Sound

SSM

AVL

Balance

TV Speaker

Time

Auto Clock

Manual Clock

Off Timer / On Timer

Sleep Timer / Auto Off

Option

Sub title

Child Lock

ARC

Demo

ISM Method

Low Power

Channel Memory    Analog

Digital

- 10 -

ATI

X260

ATI

X260

SIF

NTP3000

NTP3000

   I2S

SPDIF

I2S

CVBS(NT Main)

DDR2

64MBx2

DDR2

64MBx2

Flex Bus

RGB 30bit

TPA

Analog

Front

End

USB 1.1

I2C Port0

I2C CH1 I2C CH2 I2C CH3

MTV415

Micom

MTV415

Micom

USB (upgrade ready!!)

Dead IC when Standby

Dead IC when Standby

Video

Scaler

0

Video

Scaler

1 or 2

Alive IC when Standby

Alive IC when Standby

Audio

Video

TP

AV2 / L/R

MNT Out L/R

COMP1 L/R

COMP2 L/R

RGB L/R

TP_IN1

AV1

AV2

AV1, Y/C1

AV2, Y/C2

Flash

(NOR 32MB)

Flash

(NOR 32MB)

Latch

x

2

Latch

x

2

24C512

24C512

- 11 -

Check L729

Check

Power connector

Replace Power board

Check THC63LVD1023 (IC601)

#9(DE), #15(Clk), #7(Hsync),

#8(Vsync)

Check X260 (IC101)

Check P600 #47(DISP_EN),

#33(TXAC-) , #32(TXAC+) ,

#17(TXBC-) , #16(TXBC+)

Check THC63LVD1023 (IC601)

Check LVDS Cable

Check PDP/LCD Module

Control board

1

2

3

4

5

1 : _Check the L729 HIGH.

     _Check Power connector.

Y

NY

Y

YY

Y

N

N

2 : _Check the THC63LVD1023 (IC601)

 

input signal

#(

Clk

) :

74.25MHz

3 : _Check the P600 input signal

#47(DISP_EN) :

#33 (TXAC-) :

74.25MHz

3.3V

GND

#32 (TXAC+) :

4 : _Check the LVDS Cable

5 : _Check the PDP Module control board

#17 (TXBC-) :

#16 (TXBC+) :

74.25MHz

74.25MHz

74.25MHz