Read LG 60PB4DT-UB (CHASSIS:PA72A) Service Manual online
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.
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
(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.
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.
must be operated automatically.
1) Pressing Power On key
2) Full Test Pattern(2 min 30sec) --> Full Black
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)
(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.
interface of the signal.
3-1. Required Test Equipment
(1) PC
(2) Jig for download(Jig for power supply)
(3) Interface B/D(Buffer)
(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) 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.
(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 .
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.
Digital pattern(13 CH), Cross Hatch Pattern), an afterimage
may occur in the black level part of the screen.
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