LG 42g1, 42g2, 42t1, 42v7, 42x2 schematic

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LG PLASMA LG PLASMA

ALIGNMENT HAND BOOKALIGNMENT HAND BOOK

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Updated 01/06/2011

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PANELS CONVERED IN THE HANDBOOK

(42G1 PANEL)

42PG20 42PG25

The Following Models use the 42G1 Panel (2008)

(42G2 PANEL) The Following Models use the 42G2 Panel (2009)

42PQ20 42PQ30

(42T1 PANEL) The Following Models use the 42G2 Panel (2009)

42PJ350

(42V7 PANEL) The Following Models use the 42V7 Panel (2006)

42PC3DVUD 42PM2DS / 2DW 42PM3MVATA / MVHMC / MVMC / MVTA / MVZA 42PM3RV / RV1NC / RVA / RVANC / RVNC / RVS / RVW 42PX3DV / DVA / DVANC / DVAW / DVB / DVBNC / DVBW 42PX3DVNC / DVW 42PX3RVMC / RVZA 42PX4DVAZC / DVEA / DW 42PX4MVHTA 42PX4RVHTA / RVMC / RVTA / RVZA

(42X2 PANEL) The Following Models use the 42X2 Panel (2004)

DN42PX12X / PX13X / PX13XW / PX40X / DN42PY10X / PY11X / PY11X / DN42PZ66 / PZ75 / DT42PY10X / DU42PX12X / DU42PY10X / MN42PZ95XV / MU42PM12X / MU42PZ90XVMZ42PM12X / MZ42PZ92XV / RP42PY10X / RT42PX12X / RT42PY10X / RZ42PX12X / RZ42PY10X / MZ42PM12X / MZ42PZ92XV / RP42PY10X / RT42PX12X / RT42PY10X / RZ42PX12X / RZ42PY10X

PANELS CONVERED IN THE HANDBOOK

(42X2A PANEL)

42PM2D / 42PX2DUC / 42PX4DGS / 42PX4DGS2 / 42PX4DGW / X4DNA / 42PX4DR / PX4DRK / PX4DRKNA / PX4DRKS / PX4DRKW / PX4DRW / 42PX4DS / PX4DUB / 42PX5D / PX5DEB / PX5RTB / DN42PX12

The Following Models use the 42X2A Panel (2005)

(42X3A PANEL) The Following Models use the 42X3A Panel (2006)

THE FOLLOWING MODELS USE THE 42X3A PANEL

42PB2DR / DR1 / DRNA / DR1S / DRD / DRL / DRLNA / DRNA 42PB2DRW 42PB2RR / B2RRML 42PC1D / D1 / D1ND / D1NF / D1S / D1W / D1DA 42PC1DB / DB1 / DB1ND / DB1NF / DB1S / DB1S1 / DB1W 42PC1DBND/ DCNF / DDA / DND / DR / DR1 / DR1NA / DR1W 42PC1DR2 / DR2NA/ DRA / DRANA / DRNA / DRW / DRW1 42PC1DRWNA / DRX / DRXNA / DW / RRTL / RRZL / RTH / RZH 42PC3D / DHUD / DUD / RAZJ 42PC7DHUA / RHMA 42PM2DNA 42PX3DUE 42PX4D / DAA / DG / DGNB / DNB / DRB / DRBNA / DRBS 42PX4DRBW / DRBW1 / DRBW2 / DRNA / DRNA 42PX5DA / DA1 / DA1NA / DANA / DAW / DMNA / DNA

(42X4A PANEL) The Following Models use the 42X4A Panel (2007)

42PB2RRHML 42PB4D / DAA / DAUA / DNB / DR / DRNA / DRPNG / DTUB 42PB4RTMA / RTTB 42PC1D2 / D2NF / DB2 / DB2NF / DGAA 42PC35ZC 42PC3DA / DANA / DANG 42PC51ZB 42PC5D / DAB / DCNB / DDB / DNA / DNG / DUC / DUL / DZB 42PC5RHTB / RTB / RZB 42PC7RAMA 42PT81ZB

PANELS CONVERED IN THE HANDBOOK

50PF95ZA / 50PY3DFUA / 50PY3DFUJ / 50PY3DR / 50PY3DRNB

50PS80

50PK540 / 50PK250

(50G1 PANEL)

The Following Models use the 50G1 Panel (2008)

50PG25 50PG20

(50G2 PANEL)

The Following Models use the 50G2 Panel (2009)

50PQ20, 50PQ30

(50H1 PANEL)

The Following Models use the 50H1 Panel (2007)

(50H2 PANEL) The Following Models use the 50H2 Panel (2009)

50PG60 50PG30

(50H3 PANEL) The Following Models use the 50H3 Panel (2009)

50PS30-UB 50PS60-UA / PS60C-UA

(50R1 PANEL) The Following Models use the 50R1 Panel (2010)

50PK950 / 50PK750 / 50PK560 / 50PK550 /

(50R3 PANEL) The Following Models use the 50R3 Panel (2011)

50PZ950

(50T1 PANEL) The Following Models use the 50T1 Panel (2010)

50PJ340 / 50PJ350

PANELS CONVERED IN THE HANDBOOK

(50X2 PANEL)

50PM2D 50PX4D / 4DG / 4DGNB / 4DGS / 4DGW / 4DNB 50PX5D / 5DAB 50PY2DR / 2DR2 / 2DR2NA / 2DRUA / 2DRW1 DN50PX13 DN50PY10 / DN50PY11 / DN50PY12N DN50PZ66 DT50PY10 DU50PX10 / DU50PX41S DU50PY10 / DW50PY10 MT50PM20 / M10 MZ50PM10 / RP50PX10H RP50PY10 / RT50PX10 RZ50PX10 / RZ50PY10 TN50PY20 / TU50PY22

The Following Models use the 50X2 Panel (2005)

(50X3 PANEL) The Following Models use the 50X3 Panel (2006)

50PB2DR/ 2DR1/ 2DR1NA / 2DRA / 2DRANA 50PB2DRNA / 2DRNA / 2DRW / 2RRHML 50PB2RRHTL / 2RRML / 2RRTL 50PC1D / 1D1 / 1D1ND / 1DB / 1DB1ND / 1DB1S 50PC1DB1W / 1DBND / 1DCNF / 1DND / 1DR 50PC1DR1 / 1DR1NA / 1DR2 / 1DR2NA / 1DRW 50PC1DRW1 / 1DRWNA / 1DW / 1RTH 50PM1MATA 50PM2DNA 50PX1DHUC 50PX2DUD 50PX4D1 / 4D1NB / 4D1S / 4D1W / 4DEB 50PX4MHTB / 4RHTB / 4RTB / RZB 50PX5DNA 50PY1DN / 1DNNA 50PY2DR1 / 2DR1NA / 2DR1S / DR1W / DR1W1 50PY2DRG / 2DRGNA / 2DRGW / 2DRNA / 2DRNA DN50PX12 DN50PX40M

PANELS CONVERED IN THE HANDBOOK

(50X4P PANEL)

50PB2DR 50X4P / 50PB3DP / DP1 / DR / DRW 50PB4DA / DR / DRP / DT / RT / RTH 50PC1D / D1 / D2 / DB1 / DB2 / R / RR 50PC5D / DP / R 50PC35 / DA / DAP / 51 / 55 50PT81 50X4P / 50PX4MP

The Following Models use the 50X4P Panel (2006)

(60H1 PANEL) The Following Models use the 60H1 Panel (2007)

60PY3D 60PB4D

(60H2 PANEL) The Following Models use the 60H2 Panel (2008)

60PG30FC-UA / 60PG30F-UA / 60PG3HFD-UA 60PG60F-UA / 60PG70F-UB / 60PG7HFD-UB

(60H3 PANEL) The Following Models use the 60H3 Panel (2008)

60PS11-UA / 60PS60-UA /60PS60C-UA / 60PS80-UA

(60R1 PANEL) The Following Models use the 60R1 Panel (2010)

60PK950 / 60PK750 / 60PK560 / 60PK550 / 60PK540 / 60PK250

(60X6 PANEL) The Following Models use the 60X6 Panel (2006)

60PC1D / DR / 60PY2R / 2D / 2DR / 60PZ9M / MA

(60X7 PANEL) The Following Models use the 60X7 Panel (2006)

60PB4DA / DR / DT

(71H2 PANEL) The Following Models use the 71H2 Panel (2006)

71PY1M

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42G1 PANEL

QUICK REFERENCE

ALIGNMENT HAND BOOK

MODELS USING THE 42G1 PANEL

42PG20 42PG25

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42G1 VS / VA ADJUSTMENT

PREPARATION:

1.) Pre-Heat unit for at least 10 Minutes before making adjustments.

2.) Place unit into White Wash from the Customer’s Menu for all adjustments.

3.) Be sure to use all adjustment values as indicated on the panel voltage label in the upper left hand corner of the panel. (Example above)

PROCEDURE: (See preceding figure for locations)

1.) Adjust VS using VR951. Measured from Pin 1 P812 to chassis ground. Match Panel Voltage label ±1V.

2.) Adjust VA using VR901. Measured from Pin 6 P812 to chassis ground. Match Panel Voltage label ±1V.

42G1 PANEL

42G1 Y-SUS BOARD ADJUSTMENT POINTS

V SET DOWN set too high

can cause shut down.

If this happens, remove the LVDS cable and

pre-alighn adjustments.

42G1 PANEL

42G1 Y-SUS ADJUSTMENT PREPARATION:

PREPARATION:

1.) Pre-Heat unit for at least 10 Minutes before making adjustments.

2.) Place unit into White Wash from the Customer’s Menu for all adjustments.

3.) Be sure to use all adjustment values as indicated on the panel voltage label in the upper left hand corner of the panel. (Example above)

PROCEDURE: (See figures for locations)

1) Adjust -Vy using VR501. Measured across R210.

Match Panel Voltage label ±1V.

2) Adjust VSC using VR502. Measured across R211

Match Panel Voltage label ±1V.

42G1 PANEL

Voltage Reads Positive

-Vy TP R210

Lower Left Side

of Board

VR502

VR501

VSC TP R211

-Vy Adj

VSC Adj

Middle Left Side of Board

Lower Left Side of Board

42G1 Y-Drive Waveform Test Point

Figure 1 shows the Y-Drive Waveform Test Point on the Center Top Y-Drive PWB. Indicated by the Arrow. Use this TP for alignment of the Y-Drive signal using Set-Up and Set-Down adjustments shown on the next page.

(Fig. 1)

Y Drive

Waveform TP

Top Y-Drive board.

42G1 PANEL

Observing the Y-SUS and Z-SUS Output Waveforms

External Triggering of the Oscilloscope allows for a Stable Display of both the Y and Z SUS Output Waveforms regardless of how distorted the waveforms may be, allowing the wave shape and phasing to be easily examined.

To set the Oscilloscope up for External Trigger first connect a Scope Probe set on direct to the External Input Jack. Next set the External Jack for AC Coupling either positive or negative slope, use the Trigger Menu on the Scope. Finally you will need to set the Trigger Level press the Trigger View and set the level as indicated in the picture below.

42G1 PANEL

VS_DA Located on the Control Board just above the AUTO Gen Test Points may be used as an external trigger source

Trigger Level Adjust

for locking the waveform on the Oscilloscope

42G1 Y-DRIVE WAVEFORM ADJUSTMENT

PRELIMINARY:

Adjustment locations for adjusting the Y-Drive waveform on the Y-SUS PWB shown below.

See Y-SUS Test Points and Adjustments diagram for detailed locations. (4 pages back). See next page for Adjustment specifications.

Top Left of PWB

Set-Dn

VR401

Set-Up

VR601

42G1 PANEL

42G1 Y-SUS ADJUSTMENT PREPARATION:

PREPARATION:

1) All adjustment preliminary preparations should be the same as for Va and Vs adjustments.

2) Va, Vs, -Vy, and VSC adjustments should be complete.

3) Be sure to use all adjustment values as indicated on the panel voltage label in the upper left hand corner of the panel.

PROCEDURE: (See preceding page for locations) Connect scope to Waveform TP on Y-Drive PWB.

1) Adjust RAMP until point “A”in diagram below is

150V p / p ±5V.

42G1 PANEL

2) Adjust V SET-DOWN until

point “B” in diagram below is

110uSec ±5uS

42G1 Y-SUS BOARD Z-SUS ADJUSTMENT POINTS

Z-Bias Adjustment Section of

the Y-SUS PWB

42G1 PANEL

42G1 Z-SUS ADJUSTMENT PREPARATION:

PREPARATION:

1.) Pre-Heat unit for at least 10 Minutes before making adjustments.

2.) Place unit into White Wash from the Customer’s Menu for all adjustments.

3.) All other adjustments should be complete.

4.) Be sure to use all adjustment values as indicated on the panel voltage label in the upper left hand corner of the panel.

(Example above)

PROCEDURE: (See preceding page for locations)

1.) Place DC Volt meter on VZB TP (Across R946 on the

Y-SUS Board).

2.) Adjust VZB (Z Bias) VR905 in accordance to your Panel’s voltage label.

42G1 PANEL

Z-Bias Adj

VR905

Z-Bias TP

Bottom right side of Y-SUS PWB

R946

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42G2 PLASMA PANEL

QUICK REFERENCE

ALIGNMENT HAND BOOK

MODELS USING THE 42G2 PANEL

42PQ20 42PQ30

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42G2 SMPS BOARD ADJUSTMENT POINTS

These two voltages are adjustable and should be adjusted to the correct values as indicated by the panel label. Example shown in the outlined area below. Always adjust “Highest to Lowest” voltages. VS and VA adjustment resistors are shown in the drawing below. They are located towards the top right hand side of the board. VR901 is the VS adjustment pot. VR502 is the VA adjustment pot.

Set should be in “Full White Raster”

1) VS ADJUST: Connect DVM to pin 1 or 2 of P811. Adjust VR901 until the voltage matches the panel’s voltage label.

2) VA ADJUST: Connect DVM to pin 9 or 10 of P811. Adjust VR502 until the voltage matches the panel’s voltage label.

42G2 PANEL

All measurements taken from Chassis Gnd.

42G2 Y-SUS BOARD ADJUSTMENT POINTS

42G2 PANEL

VSC and –Vy Voltage Adjustment Locations

These voltages are adjustable and Should be adjusted to the correct values as indicated by the panel’s voltage label. Example shown to the right.

-Vy (VR502) variable resistor located bottom center of the board.

Adjust the -Vy (VR502) while reading across R201.

Match your specific panel’s voltage label.

VSC (VR501) variable resistor located bottom center of the board.

42G2 PANEL

Adjust the VSC (VR501) while reading between left side R520 and TP just above R520. Match your specific panel’s voltage label.

VSC TP

Measure

Across TPs

-Vy TP

Across

VR201

VSC

VR501

-VY

VR502

42G2 Y-Drive Waveform Test Point

Figure 1 shows the Y-Drive PWB with the area of the Waveform TP outlined in the Red circle.

Use this TP for alignment of the Y-Drive signal using Set-Up and SetDown adjustments shown on the next page.

Y-DRIVE

Y Drive

Waveform TP

42G2 PANEL

Y-SUS

(Fig. 1)

42G2 Y-DRIVE WAVEFORM ADJUSTMENT

VS, VA, VSC, -Vy should have been completed.

See Y-SUS Test

Using a Full White Raster, adjust the Set-up and Set-dn section of the Y-Drive waveform.

Oscilloscope TP “Waveform” TP on the Y-Drive PWB.

(A) Set-Up: Adjust VR601 while observing

area (A) and set to 160V ± 1V.

(B) Set-Down: Adjust VR401 while

observing area (B) and set to

42G2 PANEL

185uSec ± 5uSec.

Points and

Adjustments diagram

for locations.

42G2 Z-SUS BOARD ADJUSTMENT POINTS

The above picture represents a 42G2 Panel Voltage Label. This is for an example only. You should adjust your set’s Z-Bias adjustment to your specific Panel’s Voltage Label not this book.

The picture below represents the 42G2 Z-SUS PWB. Use this for reference to locate the Adjustment control and the adjustment Test Points.

42G2 PANEL

42G2 Z-SUS BOARD ADJUSTMENT POINTS

VS, VA, VSC, -Vy should have been completed.

Full White Raster

1) Z-Bias TP: Connect DVM (+) right side R49 or R50 to

Chassis Gnd.

2) Adjust Z-Bias (VR8) to match your specific panel’s

42G2 PANEL

voltage label.

Z Bias Test Point

Right Side of either R49 or 50

To Chassis Ground

Z Bias Adjust

VR8

Same as Chassis Gnd.

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