DOWNLOAD LG 42PA4500-DF / 42PA4510-DC (CHASSIS:PB21A) Service Manual ↓ Size: 11.39 MB | Pages: 48 in PDF or view online for FREE

Model
42PA4500-DF 42PA4510-DC (CHASSIS:PB21A)
Pages
48
Size
11.39 MB
Type
PDF
Document
Service Manual
Brand
Device
TV / Plasma
File
42pa4500-df-42pa4510-dc-chassis-pb21a.pdf
Date

LG 42PA4500-DF / 42PA4510-DC (CHASSIS:PB21A) Service Manual ▷ View online

P/NO : MFL67341908 (1202-REV00)
CHASSIS : PB21A
MODEL : 42PA4500   
42PA4500-DF
MODEL :
 42PA4510   
42PA4510-DC
CAUTION
BEFORE SERVICING THE CHASSIS,
READ THE SAFETY PRECAUTIONS IN THIS MANUAL.
PLASMA TV
SERVICE MANUAL
- 2 -
CONTENTS
CONTENTS  .............................................................................................. 2
SAFETY PRECAUTIONS  ........................................................................ 3
SPECIFICATION ....................................................................................... 4
ADJUSTMENT INSTRUCTION ................................................................ 5
BLOCK DIAGRAM .................................................................................. 12
EXPLODED VIEW  .................................................................................. 13
SCHEMATIC CIRCUIT DIAGRAM  ..............................................................
- 3 -
Many electrical and mechanical parts in this chassis have special safety-related characteristics. These parts are identified by      in the 
Schematic Diagram and Exploded View.
It is essential that these special safety parts should be replaced with the same components as recommended in this manual to prevent 
Shock, Fire, or other Hazards. 
Do not modify the original design without permission of manufacturer.
General Guidance
An  isolation Transformer should always be used during the 
servicing of a receiver whose chassis is not isolated from the AC 
power line. Use a transformer of adequate power rating as this 
protects the technician from accidents resulting in personal injury 
from electrical shocks.
It will also protect the receiver and it's components from being 
damaged by accidental shorts of the circuitry that may be 
inadvertently introduced during the service operation.
If any fuse (or Fusible Resistor) in this TV receiver is blown, 
replace it with the specified.
When replacing a high wattage resistor (Oxide Metal Film Resistor, 
over 1 W), keep the resistor 10 mm away from PCB.
Keep wires away from high voltage or high temperature parts.
Before returning the receiver to the customer,
 
always perform an AC leakage current check on the exposed 
metallic parts of the cabinet, such as antennas, terminals, etc., to 
be sure the set is safe to operate without damage of electrical 
shock. 
Leakage Current Cold Check(Antenna Cold Check)
With the instrument AC plug removed from AC source, connect an 
electrical jumper across the two AC plug prongs. Place the AC 
switch in the on position, connect one lead of ohm-meter to the AC 
plug prongs tied together and touch other ohm-meter lead in turn to 
each exposed metallic parts such as antenna terminals, phone 
jacks, etc. 
If the exposed metallic part has a return path to the chassis, the 
measured resistance should be between 1 M
Ω and 5.2 MΩ. 
When the exposed metal has no return path to the chassis the 
reading must be infinite.
An other abnormality exists that must be corrected before the 
receiver is returned to the customer.
Leakage Current Hot Check
 
(See below Figure) 
Plug the AC cord directly into the AC outlet.
Do not use a line Isolation Transformer during this check.
 
Connect 1.5 K / 10 watt resistor in parallel with a 0.15 uF capacitor 
between a known good earth ground (Water Pipe, Conduit, etc.) 
and the exposed metallic parts.
Measure the AC voltage across the resistor using AC voltmeter 
with 1000 ohms/volt or more sensitivity.
Reverse plug the AC cord into the AC outlet and repeat AC voltage 
measurements for each exposed metallic part. Any voltage 
measured must not exceed 0.75 volt RMS which is corresponds to 
0.5 mA.
In case any measurement is out of the limits specified, there is 
possibility of shock hazard and the set must be checked and 
repaired before it is returned to the customer.
Leakage Current Hot Check circuit
IMPORTANT SAFETY NOTICE
1.5 Kohm/10W
To Instrument's
exposed 
METALLIC PARTS
Good Earth Ground
such as WATER PIPE,
CONDUIT etc.
AC Volt-meter
0.15uf
SAFETY PRECAUTIONS
- 4 -
SPECIFICATION
NOTE : Specifications and others are subject to change without notice for improvement.
1. Application range
This spec sheet is applied all of the PDP TV with PB21A chassis.
2. Requirement for Test
Each part is tested as below without special appointment.
(1) Temperature: 25 °C ± 5 °C(77 °F ± 9 °F), CST: 40 °C ± 5 °C
(2) Relative Humidity: 65 % ± 10 %
(3) Power Voltage
: Standard input voltage (AC 100-240 V~, 50/60 Hz)
* Standard Voltage of each products is marked by models.
(4)  Specification and performance of each parts are followed each drawing and specification by part number in accordance with 
BOM.
(5)  The receiver must be operated for about 5 minutes prior to the adjustment.
3. Test method
(1) Performance: LGE TV test method followed 
(2) Demanded other specification 
- Safety : CE, IEC specification
- EMC : CE, IEC
4. Model General Specification
No
Item
Specification
Remark
1
Receiving System
1) SBTVD / NTSC / PAL-M / PAL-N
50A6500-SA
50A4900-SA
2) DVB-T
42/50PA4500-DF
2
Available Channel
1) VHF : 02~13
2) UHF : 14~69
3) DTV : 07-69 (VHF high/UHF)
4) CATV : 02~135
50A6500-SA
50A4900-SA
1) VHF : 02~13
2) UHF : 14~69
3) DTV : 14~69 (UHF)
4) CATV : 02~135
42/50PA4500-DF
3
Input Voltage
1) AC 100 ~ 240V 50/60Hz
4
Market
Brazil / chile / Peru / Venezuela / Costarica / Uruguay
5
Screen Size
42 inch Wide(1024 × 768)
50 inch Wide(1024 × 768)
50 inch Wide(1920 × 1080)
60 inch Wide(1920 × 1080)
42PA all model
50PA4 all model
50PA6 all model
60PA6 all model
6
Aspect Ratio
16:9
7
Tuning System
FS
8
Module
PDP42T4####  (1024 × 768)
PDP50T4####  (1024 × 768)
PDP50R4####  (1920 × 1080)
PDP60R4####  (1920 × 1080)
42PA all model
50PA4 all model
50PA6 all model
60PA6 all model
9
Operating Environment
1) Temp : 0 ~ 40 deg
2) Humidity : ~ 80 %
10
Storage Environment
1) Temp : -20 ~ 60 deg
2) Humidity : ~ 85 %
Page of 48
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LG 42PA4500-DF / 42PA4510-DC (CHASSIS:PB21A) Service Manual ▷ Download

  • DOWNLOAD LG 42PA4500-DF / 42PA4510-DC (CHASSIS:PB21A) Service Manual ↓ Size: 11.39 MB | Pages: 48 in PDF or view online for FREE
  • Here you can View online or download the Service Manual for the LG 42PA4500-DF / 42PA4510-DC (CHASSIS:PB21A) in PDF for free, which will help you to disassemble, recover, fix and repair LG 42PA4500-DF / 42PA4510-DC (CHASSIS:PB21A) Plasma. Information contained in LG 42PA4500-DF / 42PA4510-DC (CHASSIS:PB21A) Service Manual (repair manual) includes:
  • Disassembly, troubleshooting, maintenance, adjustment, installation and setup instructions.
  • Schematics, Circuit, Wiring and Block diagrams.
  • Printed wiring boards (PWB) and printed circuit boards (PCB).
  • Exploded View and Parts List.