DOWNLOAD LG 42PG100R-ZA (CHASSIS:PP81B) Service Manual ↓ Size: 10.58 MB | Pages: 28 in PDF or view online for FREE

Model
42PG100R-ZA (CHASSIS:PP81B)
Pages
28
Size
10.58 MB
Type
PDF
Document
Service Manual
Brand
Device
TV / Plasma
File
42pg100r-za-chassis-pp81b.pdf
Date

LG 42PG100R-ZA (CHASSIS:PP81B) Service Manual ▷ View online

- 5 -
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)
1
2
3
4
5
6
7
8
9
10
11
No
Item
Specification
Remark
EU
PAL-BG/I/DK, SECAM
BAND
PAL
VHF/UHF
C1~C69
CATV
S1~S47
Upper Heterodyne
PAL
PAL
PAL
Y/Cb/Cr, Y/Pb/Pr
RGB-PC
HDMI-DTV
PC Audio, AV (3EA), SIDE AV(1EA)
Full Scart 1EA, Harf 1EA
Side AV
Side AV : S-Video Priority
REAR HDMI(2)
L/R Input(PC 1EA, Component 2EA, Rear 1EA,
Side 1EA)
Model Specification
- 6 -
ADJUSTMENT INSTRUCTION
1. Application Range
This spec. sheet is applied to all of the PP81B Chassis.
2. Specification
(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.
3. ADC calibration
3-1. PC input ADC 
(1) Auto RGB Gain/Offset Adjustment
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.
(2) Confirmation
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”. 
3-2. COMPONENT input ADC 
(1) Component Gain/Offset Adjustment
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
(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
<Fig. 1>
Adjustment pattern (COMPONENT)
MSPG925FA
Component
RGB
ADC
Model : 60
(1024x768@60Hz)
Model : 216
(720P@60Hz)
- 7 -
4. PCB Assembly Adjustment Items
4-1. Option Adjustment Following BOM 
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.
5. S/W Program Download
5-1. Profile
This is for downloading the s/w to the flash memory of the
IC803
5-2. Equipment 
(1) PC
(2) ISP_tool program
(3) Download jig
5-3. Connection Structure
5-4. Connection Condition
(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
6. Download Method (PCB Ass’y)
6-1. Preliminary Steps
(1) Connect the download jig to D-sub jack
(2) Connect the PC to USB jack
<Fig. 2>
- 8 -
6-2. 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. 
7. EDID(The Extended Display
Identification Data) / DDC
(Display Data Channel) Download
[
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
7-1. Profile:
To be possible for plug and play
7-2. Equipment
(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.
7-3. Connection Structure
Caution: Never connect HDMI & D-SUB Cable at the same time. 
7-4. EDID Data 
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
Page of 28
Display

Click on the first or last page to see other 42PG100R-ZA (CHASSIS:PP81B) service manuals if exist.