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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Market

Broadcasting system

Available Channel

Receiving system

SCART Input(2EA)

Video Input (1EA)

S-Video Input (1EA)

Component Input (1EA)

RGB Input(1EA)

HDMIInput(2EA)

Audio Input (5EA)

RS-232C(1EA)

USB Input(1EA)

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No

Item

Specification

Remark

Non EU

PAL/ SECAM/ BG/I /DK, NTSC-M

BAND

PAL

VHF/UHF

E2~C69

CATV

S21~S47

Upper Heterodyne

PAL/SECAM/NTSC

PAL/SECAM/NTSC

PAL/SECAM/NTSC

Y/Cb/Cr, Y/Pb/Pr

RGB-PC, S/W Upgrade

HDMI-DTV, Only PCM Mode

AV (2EA), SIDE AV(1EA)

Remote control

Divx, MP3, JPEG

Rear 1EA, Side 1EA

Rear 1EA

Side AV : S-Video Priority

Rear HDMI(2)

L/R Input(PC 1EA, SCART 2EA, 

SIDE AV 1EA, Component 1EA)

V 

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This spec. sheet is applied to all of the PP81A Chassis.

(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

C of temperature and 65±10% of relative humidity if

there is no specific designation.

(4) The input voltage of the receiver must keep 100~240V,

50/60Hz.

(5) Before adjustment, execute Heat-Run for 30 minutes at RF

no signal.

1) Convert to PC in Input-source
2) Signal equipment displays

Output Voltage  :  700  mVp-p
Impress Resolution XGA (1024 x 768 @ 60Hz)
Model : 60    in Pattern Generator 

(1024x768@60Hz Black and White Pattern)

Pattern : 54   in Pattern Generator (MSPG-925 SERISE) 
[1/2 Black & White Pattern (Refer below picture)].

3) Adjust by commanding AUTO_COLOR_ADJUST(0xF1)

0x00 0x02 instruction.

1)  We confirm whether “0xF1 (offset), 0xF2 (gain)” address of

EEPROM “0xBC” is “0xAA” or not.

2)  If “0xF1”, “0xF2” address of EEPROM “0xBC” isn’t “0xAA”,

we adjust once more

3) We can confirm the ADC values from “0x00~0x05”

addresses in a page “0xBC”

[ Manual ADC process using Service Remocon. After enter

Service Mode by pushing “ADJ” key, execute “ADC Adjust” by
pushing “

G

” key at “Adjust-RGB”. 

1) Convert to Component in Input-source
2) Signal equipment displays

Impress Resolution  720P
MODEL : 217   in Pattern Generator

(720P/60Hz 100% Color Bar Mode)

PATTERN : 65  in Pattern Generator( MSPG-925 SERISE) 

3) Adjust by commanding AUTO_COLOR_ADJUST(0xF1)

0x00 0x02 instruction

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

<Fig. 1>

Adjustment pattern (COMPONENT)

MSPG925FA

Component

RGB

ADC

Model : 60

(1024x768@60Hz)

Model : 216

(720P@60Hz)

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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

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Manufaturer

Version

Revision

GSM

Digital : 1

Digital : 3

1E6D

01

03

Condition

Item

No

Hex Data