DOWNLOAD LG 32LF15R (CHASSIS:LP81A) Service Manual ↓ Size: 1.88 MB | Pages: 31 in PDF or view online for FREE

- 9 -

This spec. sheet is applied all of the 26/32” LCD TV, LP81A
chassis (HURRICANE 5) by manufacturing LG TV Plant all
over the world.

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±5°C 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) The receiver must be operated for about 5 minutes prior to the

adjustment when module is in the circumstance of over 15º.

In case of keeping module is in the circumstance of 0°C, it
should be placed in the circumstance of above 15ºC for 2
hours.
In case of keeping module is in the circumstance of below -
20ºC, it should be placed in the circumstance of above
15ºC for 3 hours.

(1) Preliminary steps

1) Download method 1 (PCB Assy)

- HD

2) 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 ) 

 

                f i l ex x x .bi n

 

 

     

     f i l ex x x .bi n

(4)

 

.......... OK

)

( 3

( 2 )

 

- 10 -

(1) Method of Auto Component Color Balance

1) Convert to Component in Input-source
2) Input the Component (Which has 720p@60Hz 100%

Color Bar YPbPr signal into Component.

(MSPG-925F Model: 217/ Pattern: 65)

3) Adjust by commanding AUTO_COLOR_ADJUST (0xF1)

0x00 0x02 instruction

(2) Confirmation

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

of EEPROM “0xBC” is “0xAA” or not.

2) If “0xF3”, “0xF4” address of EEPROM “0xBC” isn’t

“0xAA”, we adjust once more.

3) 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 “ADJ” key, execute
“Auto-RGB” by pushing “_” key at “Auto-RGB”.

(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 the
model spec.)
* Refer to Job Expression of each main chassis ass’y
(EBTxxxxxxxx) for Option value  

* Before PCBA check, you have to change the Tool option, Area

option and have to AC off/on. (Plug out and in)

* After Tool Option/ Area Option change, you have to AC power off.
* Never push the IN-STOP KEY after completing the function

inspection.

(1) Method

1) Push In-start key on Adjust remote-control.
2) Check “Main V3.xx”

* Caution

Use the proper signal cable for EDID Download

* Caution:

- Never connect HDMI & D-SUB Cable at the same time.
- Use the proper cables below for EDID Writing

* EDID Data

<HDMI 1 : 256bytes>

The data is same without Physical address

-> Physical address(F) : HDMI 1 -> 10

- Detail EDID Options are below (A, B, C, D, E, F) 

A. Product ID

B. Serial No:  Controlled on production line
C. Month, Year: Controlled on production line:

ex)  Monthly: ‘09  ‘09

Year:  ‘2007 ->  ‘11’

D. Model Name(Hex): 

E. Checksum: Changeable by total EDID data

Item

Manufacturer ID

Version

Revision

Condition

GSM

Digital : 1

Digital :3

Data

1E6D

01

03

For HDMI EDID

Model name

Model Name(HEX)

LG TV

00 00 00 FC 00 4C 47 20 54 56 0A 20 20 20 20 20 20 20

Model

Product ID

Name

Dec

Hex

EDID table

HD

4018(A)

9CF5

F59C

4018(D)

9CF6

F69C

- 11 -

* 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)

* Change the DDC -> After Write Data delay Time 20ms ,also

Change the After Send Read Command delay Time 20ms.

* Check the Communication Clock -> 45KHz.

(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” addresses 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.

- 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 - 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 (ch:9)
3) Auto W/B adjustment instrument(only for Auto adjustment)

(1) Connecting diagram of equipment for measuring (For

Automatic Adjustment

1) Enter the adjustment mode of DDC

- Set command delay time : 50ms
- Enter the DDC adjustment mode at the same time

heat-run mode when pushing the power on by power
only key

- 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

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

off/on in status of finishing the Hear-run mode

- Release the Adjust mode when receiving the aging off

command(F3 00 00) from adjustment equipment

- Need to transmit the aging off command to TV set after

finishing the adjustment.

- 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 200cd/m

2

≥ 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, PDP : CH10)

(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.

* CASE

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.

(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

- Standard color coordinate and temperature when using the

CA100+ or CA210 equipment

To check the Coordinates of White Balance, you have to
measure at the below conditions.
Picture Mode : User 1
XD : Manual – XD Contrast : Off, XD Colour : Off
(If you miss the upper condition, the coordinates of W/B can
be lower than the spec.)

Mode

Color coordinate

Temp

∆uv

X

Y

Cool

0.276±0.002

0.283±0.002

11,000K 0.000

Warm

0.313±0.002

0.329±0.002

6,500K

0.003

- 12 -

** DDC Command set **

(1) Signal TABLE

LEN

: 84h+Bytes

CMD : E8h
ADH : E2PROM   Slave Address (A0,A2,A4,A6), Not 00h

(Reserved by BufferToEEPROM)

ADL

: E2PROM    Sub Address(00~FF)

Data : Write data
Delay : 20ms

(2) Command Set

* Purpose

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

write(TO “00 – 7F” of “EEPROM).

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 the appointment Address of

E

2

PROM.

(3) E2PROM Data Read

1) Signal TABLE 

2) COMMAND SET

* Purpose : To read(84h) the appointment Address of E2PROM

by 128(80h)-byte

Adjustment

Aging On/Off

Input select

R GAIN

G GAIN

B GAIN

R GAIN

G GAIN

B GAIN

R GAIN

G GAIN

B GAIN

CSM mode

AUTO ADC

EEPROM Read

EEPROMWrite

CMD(HEX)

F3

F4

16

18

1A

16

18

1A

16

18

1A

F2

F1

E7

E8

ADR

00

00

00

01

02

00

00

00

00

VALUE

FF/00

00 - C0

00 - C0

00 - C0

00 - C0

00 - C0

00 - C0

00 - C0

00 - C0

00 - C0

00

01

02

0, 1, 2

00

data

detail

FF : ON / OO : OFF

0x10 : TV

0x20 : AV1

0x21 : AV2

0x40 : Component1

GAIN adjustment

CSM COOL

GAIN adjustment

CSM NORMAL

GAIN adjustment

CSM WARM

COOL

NORMAL

WARM

0: Offset adjustment

1: Gain adjustment

2: Offset and Gain adjustment

EEPROM read

EEPROM write

Delay 20m

VAL

EEPROM WRITE

E8h

94

16-Byte Write

(84+n)h

n-byte Write

Adjustment contents

CMD(hex)

LEN

Details

128 Bytes

Delay 150ms

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 contents CMD(hex) ADH(hex) ADL(hex)

Details