DOWNLOAD LG 42PC1DG-AA (CHASSIS:PB61A) Service Manual ↓ Size: 13.92 MB | Pages: 51 in PDF or view online for FREE

- 9 -

(1) Color analyzer (CA-100 or similar product)
(2)  Automatic  adjustor  (with  automatic  adjustment  hour

necessity and the RS-232C communication being possible)

(Automatic Adjustment)

(1) As using the white pattern for adjustment the inner part,

HDMI connection need not. But as lower part, the RS-232C

Command is used.

Wb 00 00  Automatic adjustment of white balance start. 
Wb 00 10  The start of gain adjustment.(inside pattern)
Ja   00  ff   Adjustment Date.
Jb   00 c0
...
Wb 00 1f   The end of gain adjustment.

As occasion demands , adjust the offset.

( Wb 00 20(Start) , Wb 00 2f(end))

Wb 00 ff    Automatic adjustment of white balance end.

(Disappear the inside pattern)

Caution)  When  you  adjust,  automatically,  RS-232C

Command is used.

[

[ RS-232C Command

(Automatic Adjustment)

(Automatic Adjustment)

O

Calibrate of the CA-100, then attach sensor to PDP module

surface when you adjust.

O

Manual adjustment is also possible by the following sequence.  

(1) HEAT RUN at least 30 minutes by pressing the Power only

Key  on  the  Service  Remote  Control  and  adjust.  and  use
power only or tint key and establish BaudRate to 115200.

(2) It must start “    00 00”, complete “wb 00 ff”.
(3) Adjust offset.

(Passivity Adjustment)

(1) HEAT RUN at least 30 minutes by pressing the ‘7. White-

Pattern’ on the Service Remote Control and adjust.

(2) After attaching sensor to center of screen, select ‘7. 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.

(3) Adjust the High Light using R Gain/G Gain - [Cool].

(B Gain 192, R-Cut/G-Cut/B-Cut: 63/62/64 Fix.)

Adjust the High Light using G Gain/B Gain - [Medium].

(R Gain 192, R-Cut/G-Cut/B-Cut: 64/61/65 Fix.)

Adjust the High Light using G Gain/B Gain - [Warm].

(R Gain 192, R-Cut/G-Cut/B-Cut: 64/62/64 Fix.)

(4) Adjust using Volume +/- KEY.

Value of bright : High Level -> 216gray

[Cool]
X; 0.278±0.0015   Y; 0.279±0.0015
Color temperature: 11000°K ±1000°K
dUV: -3dUV
[Medium]
X; 0.287±0.0015   Y; 0.289±0.0015
Color temperature: 9300°K±1000°K
dUV: -3dUV
[Warm]
X; 0.314±0.0015   Y; 0.318±0.0015
Color temperature: 6300°K±1000°K
dUV: -3dUV

(5)  Move  the  the  Ez-Adjust  screen  by  pressing  the   

V

KEY

and exit the adjustment mode by  pressing the ADJ KEY.

216 FULL WHITE

CVBS Part

PDP MONITOR

COLOR

ANALYZER

TYPE; CA-100

<Fig. 6>  Connection Diagram of Automatic Adjustment

R Gain

G Gain

B Gain

R Offset

G Offset

B Offset

CENTER

(DEFAULT)(Hex)

00

00

00

00

00

00

D0

D0

D0

7f

7f

7f

Min

Max

(Hex)

C0

C0

C0

3F

3E

40

Cool

C0

C0

C0

40

40

41

Mid

C0

C0

C0

40

3E

40

Warm

RS-232C COMMAND

[CMD ID DATA]

Jg

Jh

Ji

lp

lq

lr

Cool

Ja

Jb

Jc

lj

lk

ll

Mid

Jd

Je

Jf

Lm

Lm

Lo

Warm

00

00

00

00

00

00

00

10

1f

20

2f

ff

Automatic adjustment of white balance start.

The start of gain adjustment.(inside white pattern)

The end of gain adjustment.

The start of Offset adjustment.(inside white pattern)

The end of Offset adjustment.

Automatic adjustment of white balance end.

(Disappear the inside pattern)

wb

wb

wb

wb

wb

wb

- 10 -

:  This  adjustment  is  checking  the  set  state  after  take  a
adjustment  of  examination,  check  state  of  this  model  as
shown  below  pressing  the  IN_STOP  button  on  the
adjustment Remote Controller.

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

- 11 -

Start check

Manufacture’s model

passage

1. Check the Power Off

status.

Does the whole
screen appear?

Is it 

identical to when the

power is off?

No

Yes

No

Yes

Yes

Yes

Yes

2. Check the Interface

signal status.

Is the Interface 

signal operating?

Yes

3. Check the St-by 5V

signal circuit.

Does the 

low pressure output

appear?

Does the 

St-by 5V signal 

appear?

No

No

Yes

4. Check the 5V Monitor

signal circuit.

Does the 

5V Monitor signal 

appear?

No

7. Check the VSC Vs-ON

signal 

Does the 

high tension output

appear?

Does the 

VSC signal Vs-ON

appear?

No

No

Does

high tension 

output voltage

occur?

When

removing  the Y B/D

Module input connector,

does output voltage

drop?

When the

Y, Z B/D Module

input connector, does Power

Board high tension 

output voltage drop?

No

NoNo

9. Check the Power

Board Output high

tension circuit

Yes

10. Check the Z B/D

Module output circuit

Yes

When 

removing the Z B/D

Module input connector,

does output voltage

drop?

11. Check the Y B/D

Module output circuit

Yes

Yes

8. Check the Vs, Va

voltage output circuit.

Does the 

Vs, Va voltage output

appear?

No

Yes

Yes

5. Check the VSC RL-ON

signal.

Does the 

VSC signal RL-ON

appear?

No

6. Check the VSC low

pressure output

Does the 

VSC low pressure

output appear?

No

- 12 -

T801: Vs Trans

T901: Va Trans

T112: Low Voltage Trans

T501: ST-BY Trans

T601: PFC Inductor