DOWNLOAD LG 42PG20R-TA (CHASSIS:PP81A) Service Manual ↓ Size: 10.36 MB | Pages: 28 in PDF or view online for FREE

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Tool Option1 
Tool Option2
Area Option

*  Profile:  Must  be  changed  the  option  value  because  being

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

* Equipment : Adjustment Remote Controller

(1) Push the IN-START key in the Adjust R/C.
(2)  Input  the  Option  Number  that  was  specified  in  the  BOM,

into the Shipping area.

(3) Select “Tool Option1/ Tool Option2/ Area Option” by using

D

/

E

(CH+/-)  key,  and  press  the  number  key(0~9)

consecutively
ex)  If  the  value  of  Tool  Option1  is  7,  input  the  data  using

number key “7” (Fig. 2)

Caution:  Don’t  Push  “IN-STOP”  key  after  PCB  assembly

adjustment.

(4) Adjustment method    

Before  PCBA  check,  have  to  change  the  Tool  option  and
Area option  

[ About PDP

After  done  all  adjustments,  Press  IN-START  button  and
compare Tool option and Area option value with its BOM, if it
is  correctly  same  then  Change  “RF  mode”  and  then  unplug
the AC cable.
If it is not same, then correct it same with BOM and unplug AC
cable. 
For correct it to the model°Øs module from factory JIG model.

[ Don’t push The IN-STOP KEY after completing the function

inspection.

This  is  for  downloading  the  s/w  to  the  flash  memory  of  the
IC803

(1) PC
(2) ISP_tool program
(3) Download jig

(1) IC name and circuit number : Flash Memory and IC803
(2) Use voltage : 3.3V (5 pin)
(3) SCL : 15 pin
(4) SDA : 12 pin
(5) Tact time : about 2min and 30seconds

(1) Connect the download jig to D-sub jack

(2) Connect the PC to USB jack

<Fig. 2>

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(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. 

[ Caution

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

To be possible for plug and play

(1)  Adjusting  PC  with  S/W  for  writing  EDID  Data.(S/W:  EDID

TESTER Ver.2.5)

(2) A Jig for EDID Download
(3)  Cable  :  Serial(9Pin  or  USB)  to  D-sub  15Pin  cable,  D-sub

15Pin cable, DVI to HDMI cable.

Caution: Never connect HDMI & D-SUB Cable at the same time. 

O

XGA EDID DATA

<Analog : 128bytes>

<Fig. 3>  Connection Diagram of DDC Download

1

2

3

Manufaturer

Version

Revision

GSM

Digital : 1

Digital : 3

1E6D

01

03

Condition

Item

No

Hex Data

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<HDMI 1 : 256bytes>

<HDMI 2 : 256bytes>

<HDMI 3 : 256bytes>

O

Detail EDID Options are below (

ⓐ, ⓑ, ⓒ, ⓓ, ⓔ)

ⓐ Product ID 

ⓑ Serial No

=> Controlled on production line 

ⓒ Month, Year

=> Controlled on production line:  

ex)  Monthly: ‘11’  ->  ‘0B’ 

Year:  ‘2007’ ->  ‘11’

ⓓ Model Name(Hex)

ⓔ Checksum

=> Changeable by total EDID data

* Ananlog(128Byte)

1)

2)  

*HDMI 1/2/3 (256Byte)

1)

A

B

42PG20R-TA

50PG20R-TA

Product ID

Model Name

EDID table

219D

229D

D0C3

D1C3

Hex

9D21

9D22

C3D0

C3D1

DEC

40265(A)

40266(D)

50128(A)

50129(D)

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(1)  As  above  Fig.  3,  Connect  the  Set,  EDID  Download  Jig,,

PC & Cable

(2) Turn  on  the  PC  &  EDID  Download  Jig.  And    Execute  the

S/W : EDID TESTER Ver.2.5

(3) Set up the S/W option 

Repeat Number : 5
Device Address : A0
PageByte : 8

(4) Power on the Set

1) Sequence of Adjustment

1. DDC data of Analog-RGB

(1) Init the data 

(2) Load the EDID data.(Open File).

[Analog - RGB    : PP81A_RGB.ANA]
[Digital  - HDMI1 : PP81A_HDMI1.DVI]
[Digital  - HDMI2 : PP81A_HDMI2.DVI]
[Digital  - HDMI3 : PP81A_HDMI3.DVI]

(3) Set the S/W as below.

(4) Push the “Write Data & Verify” button. And confirm “Yes”.

(5) If the writing is finished, you will see the “OK”  message. 

(High-Bandwidth Digital Contents Protection)

(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  Main  M-STAR

IC(LGE6891DD)  which  is  0x80~0x90  addresses  of
0x00~0x01  page(EEPROM  MAP  PAGE0~PAGE1  /
START :A080)

(4) Play the Equipment(DVD Player) included HDCP Key and

confirm  whether  picture  is  displayed  or  not  of  using  DVD
Player.

(5) HDCP Key value is different among the sets

Open File

Open File