DOWNLOAD LG 22LF15R (CHASSIS:LP81K) Service Manual ↓ Size: 1.64 MB | Pages: 29 in PDF or view online for FREE

- 9 -

This specification sheet is applied to 22” LCD TV which is
manufactured in TV Factory or is produced on the basis of this
data.

1) Because this is not a hot chassis, it is not necessary to use

an isolation transformer. However, the use of isolation
transformer will help protect test instrument.

2) Adjustment must be done in the correct order.
3) The adjustment must be performed in the circumstance of

25±5ºC of temperature and 65±10% of relative humidity if
there is no specific designation.

4) The input voltage of the receiver must keep 100-220V,

50/60Hz.

5) Before adjustment, execute Heat-Run for 5 minutes at RF

no signal

(1) Preliminary steps

** Connect the download jig to D-sub jack

(2) Download steps

1) Execute ‘ISP Tool’ program in PC, then a main window

will be opened

2) Click the connect button and confirm “Dialog Box”.

3) Click the Config button and Change speed.

E2PROM Device setting : over the 350Khz

4) Read and write bin file

Click “(1)Read” tab, and then load download file(XXXX.bin)
by clicking “Read”.

5) Click “Auto(2)” tab and set as below
6) click “Run(3)”.
7) After downloading, check “OK(4)” message.

Double click

(1)

filexxx.bin

( 4 ) ......... OK

( 3 ) 

( 2 ) 

f i l ex x x .bi n

- 10 -

1) Component Gain/Offset Adjustment7

- Convert to Component in Input-source
- Input the Component (Which has 720p@60Hz YPbPr

signal : 100% Color Bar (MSPG-925F Model : 217/
Pattern: 65 ) into Component.

- Adjust by commanding AUTO_COLOR_ADJUST (0xF1)

0x00 0x02 instruction

2) Confirmation

- We confirm whether “0xF3 (offset), 0xF4 (gain)” address

of EEPROM “0xBC” is “0xAA” or not. 

- If “0xF3”, “0xF4” address of EEPROM “0xBC” isn’t “0xAA”,

we adjust once more

- We can confirm the ADC values from “0x06~0x0B”

addresses in a page “0xBC”

* Manual ADC process using Service Remocon. After

enter Service Mode by pushing “ADC” key, execute
“Auto-RGB” by pushing “

G

” key at “Auto-RGB”.

* After Tool option/Area option change, you have to AC power off

Before PCBA check, you have to change the Tool option, Area
option and have to AC off/on (Plug out and in)
(If missing this process, set can operate abnormally)

(1) Profile : Must be changed the option value because being

different with some setting value depend on module maker,
inch and market 

(2) Equipment : adjustment remote control.
(3) Adjustment method

The input methods are same as other chassis.(Use IN-
START Key on the Adjust Remocon.)
(If not changed the option, the input menu can differ from
the model spec.)

* Refer to Job Expression of each main chassis ass’y

(EBUxxxxxxxx) for Option value

* Never push the IN-STOP KEY after completing the function

inspection.

* Caution

- Use the proper signal cable for EDID Download

<EDID DOWNLOAD>

<HDMI : 256bytes>

1) All Data : HEXA Value
2) Changeable Data

* Serial No : Controlled/ Data : 01
** Month : Controlled/ Data : 00
*** Year : Controlled
**** Check sum

1) Connect D-sub Signal Cable to D-Sub Jack.
2) Input HDCP key with HDCP-key- in-program.
3) HDCP Key value is stored on EEPROM(AT24C64) which is

from “0x80” address of 0xA0 page.

4) AC off/ on and on HDCP button of MSPG925 and confirm

whether picture is displayed or not of using MSPG925.

5) HDCP Key value is different among the sets.

* Before HDCP Download, you have to Set the Configuration

that CMD delay.
-> Configuration -> Option-> I2C delay(Write Byte : 0.5 ms,
Read Byte : 0.5ms, Read CMD Byte : 0.5ms)

[Fig. 2]

For HDMI EDID

- 11 -

- Purpose : Adjust the color temperature to reduce the

deviation of the module color temperature.

- Principle : To adjust the white balance without the saturation,

Fix the one of R/G/B gain to C0 and decrease the
others.

Adjustment mode : Two modes of Cool and Warm
(Medium data is automatically calibrated by the Cool data)

(1) Remote controller for adjustment 
(2) Color Analyzer : CA100+ or CA-210 or same product

- LCD TV( ch : 9 ),

(3) Auto W/B adjustment instrument(only for Auto adjustment)

(1) Enter the adjustment mode of DDC

1) Set command delay time : 50ms
2) Enter the DDC adjustment mode at the same time heat-

run mode when pushing the power on by power only key

3) Maintain the DDC adjustment mode with same condition

of Heat-run ->Maintain after AC off/on in status of Heat-
run pattern display

(2) Release the DDC adjustment mode

1) Release the adjust mode after AC off/on or std-by off/on

in status of finishing the Hear-run mode

2) Release the Adjust mode when receiving the aging off

command(F3 00 00) from adjustment equipment

3) Need to transmit the aging off command to TV set after

finishing the adjustment.

4) Check DDC adjust mode release by exit key and release

DDC adjust mode

(3) Enter the adjust mode of white balance

- Enter the white balance adjustment mode with aging

command(F3, 00, FF)

* Luminance min value is 190cd/m2 in the cool mode (For LCD)

(1) Adjustment mode : Two modes (Cool and Warm)

(Medium data is automatically calibrated by the Cool data)

(2) Color  analyzer(CA100+, CA210) should be used in the

calibrated ch by CS-1000 (LCD : CH9)

(3) Operate the zero-calibration of the CA100+ or CA-210,

then stick sensor to the module when adjusting.

(4) For manual adjustment, it is also possible by the following

sequence.

1) Select white pattern of heat-run by pressing “POWER

ON” key on remote control for adjustment then operate
heat run longer than 15 minutes. (If not executed this
step, the condition for W/B may be different.)

2) Push “Exit” key.
3) Change to the AV mode by remote control.(Push front-

AV or Input key)

4) Input external pattern(85% white pattern)
5) Push the ADJ key two times (entering White Balance

mode)

6) Stick the sensor to the center of the screen and select

each items (Red/Green/Blue Gain and Offset) using

D

/

E

(CH +/-) key on R/C.

7) Adjust R/ G/ B Gain using 

F

/

G

(VOL +/-) key on R/C.

8) Adjust two modes (Cool and Warm)

(Fix the one of R/G/B and change the others)

9) When adjustment is completed, Exit adjustment mode

using EXIT key on R/C.

- First adjust the coordinate far away from the target value(x, y).

(1) x, y > target

1) Decrease the R, G. 

(2) x, y < target

1) First decrease the B gain, 
2) Decrease the one of the others.

- In case of decreasing the x, decreasing the R : fix G
- In case of decreasing the y , decreasing the G : fix R

(3) x > target, y < target

1) First decrease B, so make y a little more than the target.
2) Adjust x value by decreasing the R

(4) x < target ,  y > target

1) First decrease B, so make x a little more than the target.
2) Adjust x value by decreasing the G

A

Standard color coordinate and temperature when using the
CA100+ or CA210 equipment)

Mode

Color coordinate

Temp

∆uv

X

Y

Cool

0.285±0.002

0.293±0.002

9,300K

0.000

Warm

0.313±0.002

0.329±0.002

6,500K

0.003

- 12 -

(1) Signal Table

(1) Signal Table

LEN : 84h+Bytes
CMD : E8h
ADH : E

2

PROM  Slave Address(A0,A2,A4,A6,A8), Not 00h

(Reserved by BufferToEEPROM)

ADL : E

2

PROM  Sub Address(00~FF)

Data : Write data

(2) Command Set

* Purpose

1) EDID write : 16-byte by 16-byte, 8 order (128-byte)

write(TO “00 – 7F” of “EEPROM Page A6”).

2) FOS Default write

<14-mode data>write
SyncFlags,HPeriodH, HPeriodL, VtotalH,VtotalL,
SrcHTotalH, SrcHTotalL, SrcHStartH, SrcHStartL,
SrcVStartH,SrcVStartL, HsyncPhase

3) Random Data write : write to the appointment Address of

E2PROM.

(1) Signal Table

(2) Command Set

* Purpose : To read(84h) the appointment Address of

E2PROM by 128(80h)-byte

- Check Input and Signal items. (cf. work instructions)

1.TV
2.AV (CVBS/ S-Video)
3.COMPONENT (480P)
4.RGB (PC : 1024 x 768 @ 60hz)
5.HDMI
6.PC Audio In and H/P Out
* Display and sound check is executed by Remote controller.

Aging On/Off

F3

00

FF/00

FF : ON / OO : OFF

Input select

F4

00

0x10 : TV

0x20 : AV

0x40 : Component

0x60 : RGB

0x90 : HDMI

R GAIN

16

00

00 - C0

Adjustment Gain

G GAIN

18

00 - C0

CSM COOL

B GAIN

1A

00 - C0

R GAIN

16

01

00 - C0

Adjustment Gain

G GAIN

18

00 - C0

CSM NORMAL

B GAIN

1A

00 - C0

R GAIN

16

02

00 - C0

Adjustment Gain

G GAIN

18

00 - C0

CSM WARM

B GAIN

1A

00 - C0

CSM mode

F2

00

00

COOL

01

NORMAL

02

WARM

AUTO ADC

F1

00

0, 1, 2

0:Adjustment Offset

1:Adjustment Gain

2:Adjustment Offset and Gain

EEPROM Read

E7

00

00

EEPROM read

EEPROM Write

E8

00

data

EEPROM write

ADR

VAL

Description

CMD
(hex)

Adjustment Contents

CMD

ADR

VAL

Delay 20m

EEPROM READ

E7

A0

0

0-Page   0~7F  Read

80

0-Page  80~FF  Read

A2

0

1-Page   0~7F  Read

80

1-Page  80~FF  Read

A4

0

2-Page   0~7F  Read

80

2-Page  80~FF  Read

A6

0

3-Page   0~7F  Read

80

3-Page  80~FF  Read

Adjustment item

CMD(hex) ADH(hex) ADL(hex)

Details

EEPROM WRITE

E8

94

16-Byte Write

(84+n)h

n-byte Write

Adjustment item

CMD(hex)

LEN

Remark

128 Bytes

Delay 100ms