LG DU-50PZ60H, Руководство по обслуживанию

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1. Application Object
These instructions are applied to all of the PDP TV, AF-03BA.
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 instrument.
(2) Adjustment must be done in the correct order.
(3) The adjustment 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 must keep 100~240V,
50/60Hz in adjusting.
(5) The receiver must be operated for about 15 minutes prior
to the adjustment.
1) After receiving 100% white pattern(06CH), the receiver
must be operate prior to adjustment. (Or 3. White
Pattern condition in EZ - Adjust)
2) Enter into White Pattern
- Enter the Ez - Adjust by pressing ADJ Key on R/C for
adjustment.
- Select the 3. White Pattern using CH +/- Key and
press the Enter( Y ) Key.
Display the 100% Full White Pattern.
[
Set is activated HEAT-RUN without signal generator in
this mode.
If you turn on a still screen more than 20 minutes (Especially
Digital pattern(13 CH), Cross Hatch Pattern), a afterimage may
be occur in the black level part of the screen.
3. EPLD Download
(1) Test Equipment: Jig for PC, download
(2) Connect the power of VSC B/D.
(3) Execute download program(Flash Loader) of PC.
(4) After executing execution hot key (Programmer), icon click
(5) End after confirming
Each PCB Assy must be checked by Check JIG Set before
assembly. (Especially, be careful Power PCB Assy which can
cause fatal Damage to PDP Module.)
4. POWER PCB Assy Voltage
Adjustment
(Va, Vs Voltage Adjustment)
4-1 Test Equipment :
D.M.M 1EA
4-2 Connection Diagram for Measuring
Refer to Fig 2.
4-3 Adjustment Method
(1) Va Adjustment
1) C terminal of D.M.M to Va pin of P805 and
connect – terminal to GND pin of P805.
2) After turning the RV601, voltage of D.M.M adjustment as
same as Va voltage which on label of panel Right/Top.
(Deviation : ±0.5V)
(2) Vs adjustment
1) C terminal of D.M.M to Vs pin of P805 and connect
– terminal to GND pin of P805.
2) After turning the RV401, voltage of D.M.M adjustment as
same as Vs voltage which on label of panel Right/Top.
(Deviation : ±0.5V)
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ADJUSTMENT INSTRUCTIONS
PC
VSC
B/D
<Fig 1> Connection Diagram of EPLD Download
<Fig 2> Connection Diagram of Power Adjustment for Measuring