DOWNLOAD LG 42PB4DT-UA (CHASSIS:PA72A) (serv.man2) Service Manual ↓ Size: 32.47 MB | Pages: 91 in PDF or view online for FREE

Model
42PB4DT-UA (CHASSIS:PA72A) (serv.man2)
Pages
91
Size
32.47 MB
Type
PDF
Document
Service Manual
Brand
Device
TV / Plasma
File
42pb4dt-ua-chassis-pa72a-sm2.pdf
Date
PREV: LG 60PB4DT-UB (CHASSIS:PA72A) (serv.man2) Service Manual

LG 42PB4DT-UA (CHASSIS:PA72A) (serv.man2) Service Manual ▷ View online

- 3 -
SPECIFICATIONS.................................................................4
ADJUSTMENT INSTRUCTIONS ..........................................5
BLOCK DIAGRAM & TROUBLESHOOTING GUIDE..........16
EXPLODED VIEW...............................................................54
EXPLODED VIEW PARTS LIST .........................................55
REPLACEMENT PARTS LIST ............................................56
SCHEMATIC DIAGRAM..........................................................
PRINTED CIRCUIT BOARDS .................................................
TABLE OF CONTENTS
- 4 -
SPECIFICATIONS
The specifications shown above may be changed without prior notice for quality improvement.
42PB4D            
( 42PB4DT-UB)
Width x Height x Depth         With Stand  
(inches/mm)                         
Without Stand
Weight (pounds / kg)            With Stand
Without Stand
Width x Height x Depth         With Stand
(inches/mm)                         
Without Stand
Weight (pounds / kg)            With Stand
Without Stand
Width x Height x Depth         With Stand
(inches/mm)                         
Without Stand
Weight (pounds / kg)            With Stand                     
Without Stand
50PB4D           
( 50PB4DT-UB)
60PB4D           
( 60PB4DT-UB)
Resolution
Power requirement
Television System
Program Coverage
External Antenna Impedance
Operating Temperature Range
Operating Humidity Range
Storage Temperature Range
Storage Humidity Range
44.5x30.2x12.2 inches
1130.0x768.1x310.4 mm
44.5x28.1x3.3 inches
1130.0x715.0x85.0 mm
67.2 pounds / 30.5kg
59.7 pounds / 27.1kg
1366 x 768 (Dot)
AC100-240V~ 50/60Hz
NTSC-M, ATSC, 64 & 256 QAM
VHF 2-13, UHF 14-69, CATV 1-135, DTV 2-69, CADTV 1-135
75 
Ω
0 ~ 40°C
Less than 80%
-20 ~ 60°C
Less than  85%
60.9x41.8x17.6 inches
1548.0x1061.0x448.0 mm
60.9x38.9x3.9 inches
1548.0x988.0x98.5 mm
132.3 pounds / 60kg
159.9 pounds / 72.5kg
51.5x35.7x14.6 inches
1308.0x906.1x370.0 mm
51.5x33.3x3.5 inches
1308.0x845.0x89.5 mm
93.5 pounds / 42.4kg
83.1 pounds / 37.7kg
1. Application Object
These instructions are applied to all of the PDP TV, PA72A.
2. Notes
(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 equipment.
(2) Adjustments must be done in the correct order.
(3) The adjustments 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 be must kept 110V, 60Hz
when adjusting.
(5) The receiver must be operational for about 15 minutes
prior to the adjustments.  
O
Preliminary action is applied to the test for afterimage
discharge detection, and 100% FULL WHITE PATTERN
must be operated automatically.
1) Pressing Power On key
2) Full Test Pattern(2 min 30sec) --> Full Black
Pattern(30sec) --> Full White Pattern
(Full White when the main power is turned on again
after being turned of) 
3) Pattern Mode is deselected by pressing CH +/-, Exit Key.
[
Set is activated HEAT-RUN without signal generator in this
mode.
3. EPLD Download
Download the software for configuring the input/output
interface of the signal.
3-1. Required Test Equipment
(1) PC 
(2) Jig for download(Jig for power supply)
(3) Interface B/D(Buffer)
3-2. Connection Diagram for Download
3-3. Adjustment Condition(Download
Condition) 
(1) IC & Circuit No.: Altera(EPM570T144C5N), IC301
Altera(EPM570F256C5N), IC305
[
Altera(EPLD), Xillinx(CPLD), Altera 2EA(Byte Blaster)
(2) Power: 5V (Pin 3 of P300)
(3) Download Pin: P300 (3Pin-5V, 1,2,4,5Pin-Data) 
(4) Download Program: iMPACK/ Max-Plu
3-4. Adjustment  
(1) Place the main B/D on the jig and connect the PC to the
main B/D by the interface B/D. 
(2) Connect the power of VSC B/D.
(3) Execute download program(iMPACK) of PC.
(4) Select ‘Cancel the initial screen of the program’ and click
the icon at the figure of (3). 
(5) When the file (*.cdf) suitable for the model is selected, the
icon as shown at the figure is created.
- 5 -
ADJUSTMENT INSTRUCTIONS
1. Execute
2. Select  Cancel the initial screen 
    of the program .
3. Select this icon.
PC
Main
B/D
Interface B/D
Connection Pin(P300)
Test Pattern 2min 30sec
Test Pattern 30sec
If you turn on a still screen more than 20 minutes (Especially
Digital pattern(13 CH), Cross Hatch Pattern), an afterimage
may occur in the black level part of the screen.
- 6 -
(6) Press the right button of the mouse on the icon to select
[Program].
(7) Check [Erase before programming] and [Verify] as shown
below and then press [OK].
(8) After about 10 seconds, the download guidance window
disappears to complete. 
4. Gemstar VBI Micom Download 
Download the program for the basic driving of the Gemstar
4-1. Required Test Equipment
(1) MPLAB ICD2 
(2) PC
(
3) Power Supply
(
4) RS-232C or USB cable
4-2. Connection Diagram for Adjustment
(1) As shown above, connect the MPLAB ICD2 equipment,
PC and Digital Connector.
(2) Turn on the MPLAB ICD2 POWER Supply.
(3) After turn on the PC and MONITOR, select the ‘MPLAB
IDE’ from the screen.
4-3. Adjustment  
(1) When the program is executed, select the MPLAB ICD2
from Programmer -> Select Programmer . 
(2) Select "Configure -> Select Device".
ADJUSTMENT INSTRUCTIONS
<OK/NG>
+13V
<Digital Board>
Connect the MPLAB ICD2 and connector of Digital Board
Connect the RS-232 or USB Cable
GND
Data
P1100
IC1103
Page of 91
Display

Click on the first or last page to see other 42PB4DT-UA (CHASSIS:PA72A) (serv.man2) service manuals if exist.

RANDOM: