Read LG 50PY3DF-UA (CHASSIS:PA73A) Service Manual online
1. Application Object
These instructions are applied to all of the PDP TV, PA73A.
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.
3. Component 480i/1080p RGB
1080p Adjustment
3-1. Synopsis
Component 480i/1080p RGB 1080p adjustment to set the
black level and the Gain to optimum.
black level and the Gain to optimum.
3-2. Test Equipment
(1) Service R/C
(2) 801GF(802B, 802F, 802R) or MSPG925FA Pattern
(2) 801GF(802B, 802F, 802R) or MSPG925FA Pattern
Generator (480i/1080i The Horizontal 100% Color Bar
Pattern adjust to within 0.7±0.1Vp-p)
Pattern adjust to within 0.7±0.1Vp-p)
[
Because the above pattern can differ by the model and
pattern for each device, you must check the pattern first.
3-3. 480i Comp1 Adjustment
(1) Receive the 480i Mode, 100% Horizontal Color Bar
Pattern(HozTV31Bar) to Component 1 port.
(MSPG-925FA: ==> Model : 209, Pattern : 65)
(MSPG-925FA: ==> Model : 209, Pattern : 65)
(2) Press the ADJ on the adjustment R/C to enter ‘Ez –
Adjust’. Select ‘1. Adjsut 480i Comp1’ using the
E
and
press the
G
to make the automatic adjustment.
(3) When the adjustment is over, 'ADC Component1 Success’
is displayed. If the adjustment has errors, 'ADC
Component1 408i Fail’ is displayed.
[Fail Message]
Component1 408i Fail’ is displayed.
[Fail Message]
- If the component is not connected: Component1 Not
Connected
- If the input format is not 480i: Not Valid Format
- If the input signal is not generated: Check Signal Status
- If the input signal is not generated: Check Signal Status
(4) Readjust after confirming the Pattern or adjustment
condition
(5) After adjustment is complete, exit the adjustment mode by
pressing the ADJ.
3-4. 1080p Comp1/RGB Adjustment
(1) Receive the 1080p Mode, 100% Horizontal Color Bar
Pattern(HozTV31Bar) to Component1 and RGB port.
(MSPG-925FA: ==> Model : 225 , Pattern : 65)
(MSPG-925FA: ==> Model : 225 , Pattern : 65)
(2) After connecting, wait for the image displayed on the
screen
(3) Press the ADJ on the adjustment R/C to enter ‘Ez –
Adjust’. Select ‘2. Adjsut 1080p Comp1/RGB’ using the
E
and press the
G
to make the automatic adjustment.
(4) When the adjustment is over, 'ADC Component1 Success’
is displayed. If the adjustment has errors, 'ADC
Component1 1080p Fail’ is displayed.
Component1 1080p Fail’ is displayed.
(5) When the Component1 adjustment is normally completed,
the RGB adjustment automatically starts.
(6) When the adjustment is over, 'ADC RGB 1080p Success’
is displayed.
(7) When the adjustment has errors, 'ADC RGB 1080p Fail’ is
displayed.
[Fail Message]
[Fail Message]
- If the component is not connected: Component1 Not
Connected
- If the input format is not 480i: Not Valid Format
- If the input signal is not generated: Check Signal Status
- If the input signal is not generated: Check Signal Status
(8) Readjust after confirming the Pattern or adjustment
condition
(9) After adjustment is complete, exit the adjustment mode by
pressing the ADJ.
- 5 -
ADJUSTMENT INSTRUCTIONS
<Fig. 1> ADC Adjustment Pattern:
480i/1080i 60Hz HozTV31Bar Pattern
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