LG 50PC1DA-EC Schematic

PLASMA TV

SERVICE MANUAL

CAUTION

BEFORE SERVICING THE CHASSIS,
READ THE SAFETY PRECAUTIONS IN THIS MANUAL.

CHASSIS : PD61A

MODEL : 50PC1DA 50PC1DA-EC

website:http://biz.LGservice.com

- 2 -

CONTENTS

SAFETY PRECAUTIONS ....................................................................................3

DESCRIPTION OF CONTROLS ..........................................................................4

SPECIFICATIONS ................................................................................................9

ADJUSTMENT INSTRUCTIONS .......................................................................11

TROUBLE SHOOTING GUIDE..........................................................................17

BLOCK DIAGRAM.............................................................................................22

EXPLODED VIEW..............................................................................................24

EXPLODED VIEW PARTS LIST ........................................................................25

REPLACEMENT PARTS LIST...........................................................................26

SCHEMATIC DIAGRAM.........................................................................................

PRINTED CIRCUIT DIAGRAM ..............................................................................

- 3 -

SAFETY PRECAUTIONS

Many electrical and mechanical parts in this chassis have special safety-related characteristics. These parts are identified by in the
Schematic Diagram and Replacement Parts List.
It is essential that these special safety parts should be replaced with the same components as recommended in this manual to prevent
X-RADIATION, 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 monitor is blown, replace it
with the specified.

When replacing a high wattage resistor (Oxide Metal Film Resistor,
over 1W), keep the resistor 10mm away from PCB.

Keep wires away from high voltage or high temperature parts.

Due to high vacuum and large surface area of picture tube,
extreme care should be used in handling the Picture Tube.
Do not lift the Picture tube by it's Neck.

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 1MΩ and 5.2MΩ.
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 1.5K/10watt resistor in parallel with a 0.15uF 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

0.5mA.
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

1.5 Kohm/10W

To Instrument's
exposed
METALLIC PARTS

Good Earth Ground
such as WATER PIPE,
CONDUIT etc.

AC Volt-meter

IMPORTANT SAFETY NOTICE

0.15uF

POWER

Switches the set between ON and STANDBY.

D/A TV

INPUT

VOL

LIST

Q.VIEW

PR

POWER

1 2 3

4 5 6

7809

INDEX

POSITION

SIZE

REVEAL

I/II

TIME

GUIDE

PIP PR-

PIP

MENU

MUTE FAV

EXIT

VCR

TV

DVD

ARC

TEXT

SWAP

BACK

PIP PR+

INFO

i

?

i

OK

SUBTITLE/

PIP INPUT

SLEEP

D/A TV (Digital TV / Analogue TV)

Selects digital or analogue mode.

INPUT

Selects the DTV, TV, AV, Component, RGB or HDMI
modes.
switches the set on from standby.

TV, DVD, VCR

Selects the remote operating mode: TV, VCR, DVD.
Select other operating modes, for the remote to oper­ate external devices.

GUIDE

Shows programme schedule.

ARC (Aspect Ratio Control)

Selects your desired picture format.

SUBTITLE/

*

Recalls your preferred subtitle in digital mode.

PIP

Switches the sub picture on or off,select PIP, DW1/2
or POP modes.

SIZE

Adjusts the sub picture size.

POSITION

Moves the sub picture position.

PIP PR +/-

Selects a programme for the sub picture.

SWAP

Alternates between main and sub picture.

PIP INPUT

Selects the input mode for the sub picture.

BACK

Allow the user to move back one step in an inter­active application, EPG or other user interaction
function.

SLEEP

Sets the sleep timer.

- 4 -

DESCRIPTION OF CONTROLS

- 5 -

MENU

Displays on screen menus one by one.
Exits the current menu.
Memorizes menu changes.

OK

Accepts your selection or displays the current
mode.

DD / EE / FF / GG

Adjusts menu settings.
Selects menu item.

COLOURED BUTTONS

They are used as per the indications or functions dis­played on TV screen in case of Text displays
(Teletext, EPG) and programme edit.

VOL

DD / EE

(Volume Up/Down)

Increases/decreases sound level.

PR

DD / EE

(Programme Up/Down)

Selects a programme.

LIST

Displays the programme table.

Q.VIEW

Returns to the previously viewed programme.

NUMBER BUTTONS

MUTE

Switches the sound on or off.

FAV (FAVOURITE)

Displays the selected favourite programmes.

D/A TV

INPUT

VOL

LIST

Q.VIEW

PR

POWER

1 2 3

4 5 6

7809

INDEX

POSITION

SIZE

REVEAL

I/II

TIME

GUIDE

PIP PR-

PIP

MENU

MUTE FAV

EXIT

VCR

TV

DVD

ARC

TEXT

SWAP

BACK

PIP PR+

INFO

i

?

i

OK

SUBTITLE/

PIP INPUT

SLEEP

EXIT

Clears all on-screen displays and returns to TV
viewing from any menu.

TELETEXT BUTTONS

These buttons are used for teletext.
Text button is used to enable teletext services while
other buttons are for teletext functions. * For further
details, see the ‘Teletext’ section.

- 6 -

PR

VOL

OK

MENU

INPUT

PROGRAMME Buttons

VOLUME Buttons

MENU Button

OK Button

INPUT Button

POWER Button

Power/Standby
Indicator

• illuminates red in
standby mode.

• illuminates white
when the set is
switched on.

Front Panel Controls

- 7 -

AV IN 4V IN 4

L/L/MONOMONO

R

AUDIOAUDIO

VIDEOVIDEO

HDMI INHDMI IN

DIGITDIGITALAL AUDIO AUDIO

OUTOUT

OPTICALPTICAL

1(DVI)1(DVI)

2

RS-232C INRS-232C IN

(CONTROL(CONTROL & SERSERVICE)VICE)

RGB (PCRGB (PC/DTV)DTV)

RGB INRGB IN

AUDIO (RGB/DVI)AUDIO (RGB/DVI)

ININ

OUTOUT

VIDEOVIDEO

AUDIOAUDIO

MONO

( )

VIDEOVIDEO

AUDIOAUDIO

COMPONENT IN

S-VIDEOS-VIDEO

AV IN 3V IN 3

VARIABLEARIABLE

AUDIO OUTAUDIO OUT

REMOTEREMOTE
CONTROLCONTROL

AV 1V 1 AV 2 DTV OUTDTV OUT

ANTENNAANTENNA

IN

ANTENNAANTENNA

OUTOUT

EJECTEJECT PCMCIAPCMCIA SLOT SLOT

AUDIO Input

VIDEO Input

DIGITAL AUDIO OUT

OPTICAL

AV IN 3

VARIABLE AUDIO OUT

AV 1/2

DTV OUT

COMPONENT IN

HDMI/DVI IN

42PC1DV models have

a unit of HDMI / DVI
input jack.

ANTENNA IN

ANTENNA OUT

AUDIO IN
(RGB/DVI)

RGB IN
(PC/DTV)

AC IN

RS-232C INPUT
(CONTROL&SERVICE)

REMOTE CONTROL Port

PCMCIA (Personal

Computer Memory

Card International

Association) Slot

Back Connection Panel

HDMI IN

- 8 -

ACCESSORIES

Owner’s Manual

75Ω RF Coaxial

Power Cord

D/A TV

INPUT

VOL

LIST

Q.VIEW

PR

POWER

1 2 3

456

78

0

9

INDEX

POSITION

SIZE

REVEAL

I/II

TIME

G

U
ID

E

P
I
P

P
R

-

P
IP

M
E

N
U

MUTE FAV

E
X
IT

V
C

R

TV

DVD

ARC

TEXT

S
WAP

BAC

K

P
I
P
P

R

+
I
N

F
O

i

?

i

OK

S
U

B
T
I
T
L

E
/

P
IP
IN
P

U
T

S
L
E

E
P

D/A

VOL

LIST

Q.VIEW

PR

1 2 3

456

78

0

9

INDEX

POSITION

SIZE

REVEAL

I/II

TIME

G
U

ID

E

P
I
P

P
R

-

P
IP

M

E
N

U

MUTE FAV

EX

IT

T
V

ARC

TEXT

S

WAP

B

AC

K

P

IP
P

R
+

I

N
F
O

i

?

i

OK

S
L
E

E
P

VOL

LIST

Q.VIE

1 2 3

456

78

0

9

POSITION

SIZE

TIME

MUTE FAV

Remote Control /

Batteries

2-Wall brackets

2-eye-bolts

For 42PC1D*,

42PC3D*, 50PC1D*

Polishing Cloth

(42/50PC1D only)

Polish the screen

with the cloth.

2-bolts

(42PC1D*, 42PC3D*

only)

Owner’s Manual

SPECIFICATIONS

NOTE : Specifications and others are subject to change without notice for improvement

.

V Application Range

This spec is applied to the 50” PLASMA TV used PD61A Chassis.

V Specification

Each part is tested as below without special appointment.

1) Temperature : 25±5°C (77±9°F), CST : 40±5

2) Relative Humidity: 65±10%

3) Power Voltage: Standard Input voltage (100-240V~, 50/60Hz)
* Standard Voltage of each product is marked by models.

4) Specification and performance of each parts are followed each drawing and specification by part number in accordance with SBOM.

5) The receiver must be operated for about 20 minutes prior to the adjustment.

V Test Method

1) Performance : LGE TV test method followed.

2) Demanded other specification

Safety : CE, IEC specification
EMC : CE, IEC

V General Specification

1. Module Specification

1-1. 50” XGA MODULE

- 9 -

Chassis

PD61A 50PC1DV-EC The United Kingdom LG

Model Name Market Place Brand Remark

50PC1DV-EC

Safety : IEC/EN60065

EMI : EN55013

EMS : EN55020

The United Kingdom

TEST

Model ApplianceMarket Remark

Display Screen Device

Aspect Ratio

PDP Module

Operating Environment

Storage Environment

Input Voltage

1

2

3

4

5

6

No Item Specification Remark

50” Wide Color Display Module

16:9

PDP50X4,

RGB Closed Type

1)Temp. : 0~55deg

2)Humidity : 20~80%

3)Temp. : -20~60deg

4)Humidity : 10~90%

100-240V~, 50/60Hz

Plasma Display Panel

LGE SPEC.

Maker : LGIT

- 10 -

2. Model Specification ( 50” X4 module, Set with 38% Filter)

White peak Brightness

White average brightness

Brightness uniformity

Color Coordinate White X

Y

Red X

Y

Green X

Y

Blue X

Y

Color coordinate uniformity

Contrast ratio at dark room

Color Temperature Normal

Warm

Cool

Color pull in Range PAL

NTSC

Color killer Sensitivity

300

60

-10

0.275

0.280

0.650

0.305

0.230

0.655

0.130

0.035

-0.01

3000:1

8300

5500

9500

-500

-500

320

75

0

0.285

0.290

0.665

0.320

0.245

0.670

0.145

0.050

Average

3500:1

9300

6500

10500

+10

0.295

0.300

0.680

0.335

0.260

0.685

0.160

0.065

+0.01

10300

7500

11500

+500

+500

-80

1

2

3

4

5

6

7

8

9

No Item Remark

(*) Peak Brightness Mode

- 1/100 ~ 3/100 white window pattern

(Typically 1% window size)

- APC : User (Decrease brightness

from dynamic mode until entering

the peak brightness mode,

brightness : below 7 on OSD Menu)

- HDMI PC(1366*768 / 60Hz ) input

- Peak Brightness Condition may

slightly different between Sets.

- Full White Pattern

- APC : Clear (Dynamic)

- 85IRE Full White Pattern

- APC : Clear (Dynamic)

- 85IRE Full White Pattern

- APC : Clear (Dynamic)

- 85IRE Full White Pattern

- APC : Clear (Dynamic)

(*) Same as

Peak Brightness Mode Condition

- 85IRE Full White Pattern

- APC : Clear (Dynamic)

cd/m

2

cd/m

2

%

Hz

Hz

dBm

Min Typ Max Unit

- 11 -

4. Model General Specification

3. General Specifications(PDP 50X4)

Market

Broadcasting system

Receiving system

Scart Jack (3EA)

Video Input (2EA)

S-Video Input (1EA)

Component Input (1EA)

RGB Input

HDMI Input(2EA)

Audio Input (4EA)

Wired Control(2EA)

1

2

3

4

5

6

7

8

9

10

11

No Item Specification Remark

The United Kingdom

1) PAL-BG

2) PAL-DK

3) PAL-I, I’

4) DVB-T(ID TV)

Analog : Upper Heterodyne

Digital : COFDM

PAL, SECAM

PAL, SECAM, NTSC

PAL, SECAM, NTSC

Y/Cb/Cr, Y/Pb/Pr

RGB-PC,

RGB-DTV

HDMI-PC

HDMI-DTV & SOUND

PC Audio, Component, AV(2EA)

Discrete IR(Input, Output)

UK

Scart 3 Jack is only DTV output

4 System : PAL, SECAM, NTSC, PAL60

4 System : PAL, SECAM, NTSC, PAL60

VGA model has only 1 HDMI input

L/R Input

Display area

Outline dimension

Number of Pixels

Cell pitch

Pixel type

Weight(net)

Weight(gross)

Operation Environment Temperature

Humidity

Pressure

Storage Environment Temperature

Humidity

Pressure

I mage stick minimization Start time

mode Low Brightness

Arrival Time

1106.5(H) * 622.1(V) °

± 0.5

1190(H) * 700(V)*52(D) °

±1

1366(H) * 768(V)

270(H) *810(V)

RGB Closed type

19.7 20.2 20.7

278.7 279.2 284.2

0 ~ 55

20 ~ 80

800 ~ 1100

-20 ~ 60

10 ~ 90

700 ~ 1100

4.5 5 5.5

14 15 16

1

2

3

4

5

6

7

8

9

10

No Item Remark

1Pixel=3RGB Cells

1Pixel=3RGB Cells

5EA 1Box

Altitude : 0 to 2000M

mm

mm

um

Kg

Kg

deg

%

hPa

deg

%

hPa

min

min

Min Typ Max Unit

- 12 -

ADJUSTMENT INSTRUCTIONS

1. Application Object

These instructions are applied to all of the 50” PLASMA TV,
PD61A Chassis.

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.
(5) The receiver must be operated for about 15 minutes prior

to the adjustment.

O After RGB Full white HEAT-RUN Mode, the receiver must

be operated prior to adjustment.

O Enter into HEAT-RUN MODE

1) Press the POWER ON KEY on R/C for adjustment.

2) OSD display and screen display PATTERN MODE.

[ Set is activated HEAT-RUN without signal generator in

this mode.
[ Single color pattern(RED/BLUE/GREEN) of HEAT-RUN

mode uses to check PANEL.

Caution) If you turn on a still screen more than 20 minutes,

(Especially digital pattern, cross hatch pattern) after
image may be occur in the black level part of the screen.

3. Channel memory

3-1. Setting up the LGIDS

1) Install the LGIDS. (idsinst.exe)

2) After installation, restart your PC.

3) Extract [files.zip] to folder [c:\LGIDS\files].

4) Start LGIDS.

3-2. Channel memory Method

1) Select “PDP” and “Hurricane” on Model dialog. And check
your connection in Communication dialog. (If your
connection is ‘NG’, then set your PORT(COM1,2,3,...)
correctly.)

2) Connect RS-232C cable and turn on the power.
(If your connection has completed, you can see “Ready”.)

[ If your set is not an end products but only a board, you

have to make your board to Stand-by state (LED_R). And
you have to Download in Stand_by power state.

3) Select proper CH_memory file(*.nvm) for each model at
[NVRAM Download] $ [Write Batch]
Next, select proper binary file(*.bin) including the CH
information for each model at [NVRAM File].

File name : H2_CH_Memory_RZ.nvm

4) Click the [Download] button.
It means the completion of the CH memory download if all
items show ‘OK’ and Status is changed by ‘PASS’ at the
lower right corner of the window.

5) If you want to check whether the CH information is
memorized correctly or not, click the [Verify] button.
And then compare NVRAM File(*.bin) with the CH
information downloaded.

(Fig. 1)

(Fig. 2)

(1)

(2)(2)

(4)

(3)

(Fig. 3)

4. Sub Program Down Load

1) Select “ PDP” and “Hurricane” on Model dialog. and check
your connection in Communication dialog. (If your
connection is ‘NG’, then set your PORT(COM1,2,3,...)
correctly.

2) Connect RS232 cable and turn on the power. (Use the
special Cable for Sub-program)
(If your connection has completed, you can see ‘Ready’)

3) Select proper ‘Model’ for each model.

4) Select ‘flash file’ for each model.

5) Click the [Download] button.
It means the completion of the ROM download if all items
show ‘OK’ and Status is changed by ‘PASS’ at the lower
right corner of the window.

5. PCMCIA CARD Checking Method

1) You must adjust DTV 29 Channel and insert PCMCIA
CARD to socket.

2) If PCMCIA CARD works normally, normal signal display on
screen. But it works abnormally, “No CA module” words
display on screen.

6. POWER PCB Assy Voltage
Adjustments

(Va, Vs Voltage adjustments)

6-1. Test Equipment : D.M.M. 1EA

6-2.Connection Diagram for Measuring

: refer to Fig.5

6-3. Adjustment Method

(1) Va Adjustment

1) After receiving 100% Full White Pattern, HEAT RUN.

2) Connect + terminal of D.M.M to Va pin of P805, connect

- terminal to GND pin of P805.

3) After turning VR0901, 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) Connect + terminal of D.M.M to Vs pin of P805, connect
– terminal to GND pin of P805.

2) After turning VR951, voltage of D.M.M adjustment as
same as Va voltage which on label of panel right/top.
(Deviation; ±0.5V)

7. EDID (The Extended Display
Identification Data)/ DDC (Display
Data Channel) download

7-1. Required Test Equipment

1) Adjusting PC with S/W for writing EDID Data.(S/W : EDID
TESTER Ver.2.5)

2) A Jig for EDID Download.

3) Cable : Serial(9Pin or USB) to D-sub 15Pin cable, D-sub
15Pin cable, DVI to HDMI cable.

7-2. Setting of device

7-3. Preparation for Adjustment

1) As above Fig. 6, Connect the Set, EDID Download Jig, PC
& Cable.

2) Turn on the PC & EDID Download Jig. And Execute the
S/W : EDID TESTER Ver,2.5.

3) Set up S/W option.

Repeat Number : 5
Device Address : A0
PageByte : 8

4) Power on the Set.

- 13 -

Each PCB assembly must be checked by check JIG set.
(Because power PCB Assembly damages to PDP Module,
especially be careful)

(Fig. 5) Connection diagram of power adjustment for measuring

(Fig. 6) Connection Diagram of DDC download

(1)

(2)

(3)(3)

(Fig. 4)

- 14 -

7-4. Sequence of Adjustment

- DDC data of Analog-RGB

1) Init the data.

2) Load the EDID data.(Open File).

[ Analog file ] (for RGB)

[ Digital file ] (for GDMI)

3) Set the S/W as below.

4) Push the “Write Data & Verify”button. And confirm “Yes”.

5) If the writing is finished, you will see the “OK” message.

8. Auto AV(CVBS) Color Balance

8-1. Requirement

V This AV color balance adjustment should be performed

before white Balance Adjustment.

V It is very import to use adjustment pattern like Fig.7.

1) Within the pattern, color sequence should be aligned.
: W-Y-C-G-M-R-BLUE-BLACK.
(If color sequence is reversed (Black -> ... -> White),
reverse the pattern with REV key, when using Master
pattern generator like MSPG-925)

2) If minimum Black level and/or maximum White level is
not correct, select 100% color bar pattern.

8-2. Required Equipment

1) Remote controller for adjustment.

2) AV Pattern Generator.
: 802F Pattern Generator, Master(MSPG-925FA), etc.
(Which has PAL Composite Video format output with
standard(1.0 Vpp) Vertical 100% Color Bar Pattern as Fig.7)

8-3. Method of Auto AV(CVBS) Color Balance

1) Input the PAL Composite Video into video input.
(Input 50Hz : AV3/AV4 Input)

2) Set the PSM to Standard mode in Picture menu.

3) Press IN-STAR key on R/C for adjustment.

4) Press the

G(Vol. +) key operate to set, then it becomes

automatically.

5) Auto-RGB OK means completed adjustment.

9. Adjustment of White Balance

9-1. Required Equipment

1) Remote controller for adjustment.

2) Color Analyzer. (CA-100 or same product)

3) Auto W/B adjustment instrument(only for Auto adjustment)

4) AV Pattern Generator.

9-2. Connecting diagram of equipment for

measuring (For Auto Adjustment)

(Fig. 7) Auto AV(CVBS) Color Balance Test Pattern

(Fig. 8) Connection Diagram of Auto W/B Adjustment

- 15 -

W Auto adjustment Map(RS-232C)

9-3. Adjustment of White Balance

(For Manual adjustment)

O Operate the zero-calibration of the CA-100, then stick

sensor to PDP module surface when you adjust.

O For manual adjustment, it is also possible by the following

sequence.

1) Select white pattern of heat-run mode by pressing power on
key on remote control for adjustment then operate heat run
more than 15 minutes.

2) As below Fig.9, Supply 216Level (85 IRE) full screen
pattern to Video input.
(Input 50Hz, PD61A/C all model : AV4 Input)

3) Press the TV/AV KEY on R/C for converting input mode.

4) Set the PSM to Standard mode in Picture menu.

5) Enter the White Balance adjustment mode by pressing the
IN-START key twice(White Balance) on R/C.

6) Stick sensor to center of the screen and select each items
(Red/Green/Blue Gain and Offset) using

D / E(CH +/-) key

on R/C.

7) Adjust Only High Light with R Gain/ B Gain using

F / G

(VOL+/-) key on R/C.

8) Adjust it until color coordination becomes as below.
(Initially, R/G/B gain and R/G/B offset values are fixed as
below.

Red Gain : 82, Green Gain : 80, Blue Gain : 86
Red Offset : 7F, Green Offset : 7E, Blue Offset : 82)

[PD61A]-VGA 42”, XGA 42”,50” Module.
Brightness : High Light : 60 ± 20cd/m2
Color-Coordinate : High Light : X : 0.285 ± 0.003

Y : 0.290 ± 0.003

Color Temperature : 9,300°K ± 500°K.

9) When adjustment is completed, Exit adjustment mode using
EXIT key on R/C.

10. Auto Component Color Balance

10-1. Requirement

- It is very import to use correct adjustment pattern like fig.10.

V Within the pattern, color sequence should be aligned.

: W-Y-C-G-M-R-BLUE-BLACK.
(If color sequence is reversed(Black -> ... > White), reverse
the pattern with REV key, when using Master pattern.
generator like MSPG-925)

V If Minimum Black Level and/or Maximum White Level is not

correct, select 100% Color Bar Pattern.

10-2. Required Test Equipment

1) Remote controller for adjustment

2) 802F Pattern Generator
(Which has 720p Ypbpr output with Standard(0.7Vpp)
Vertical 100% Color Bar Pattern as Fig.10)

10-3. Method of auto component color balance

1) Input the Component 720p 100% Color Bar signal into

Component1 or Component2.

2) Set the PSM to Standard mode in Picture menu.

3) Press IN-START key on R/C for adjustment.

4) Press the

G(Vol. +) key operate to set, then it becomes

automatically.

5) Auto-RGB OK means complete adjustment

11. Auto RGB Color Balance

11-1. Requirement

- It is very import to use correct adjustment pattern like fig.11

V Within the pattern, color sequence should be aligned.

: W-Y-C-G-M-R-BLUE-BLACK.
(If color sequence is reversed(Black -> ... > White), reverse
the pattern with REV key, when using Master pattern
generator like MSPG-925)

V If Minimum Black Level and/or Maximum White Level is not

correct, Do select 100% Color Bar Pattern.

11-2. Required Test Equipment

1) Remote controller for adjustment.

2) 802F Pattern Generator, Master(MSPG-925FA), etc.
(Which has XGA 60Hz PC Format output with standard
(0.7Vpp) 100% Color Bar Pattern as Fig.11)

(Fig. 10) Auto Component Color Balance Test Pattern

(Fig. 9) Pattern for Adjustment of White Balance

216 Level (85 IRE)216 Level (85 IRE)

Type

Baud Rate

115200

Index

R Gain

G Gain

B Gain

R Offset

G Offset

B Offset

Data bit

8

Cmd1 Cmd2

ja

jb

jc

jd

je

jf

Stop bit

1

Parity

NONE

PD61A/C

Protocol

Setting

Data Min Value

00(00)

00(00)

00(00)

00(00)

00(00)

00(00)

Max Value

255(FF)

255(FF)

255(FF)

255(FF)

255(FF)

255(FF)

- 16 -

11-3. Method of Auto RGB Color Balance

1) Input the PC 1024x768 60Hz 100%Color bar into RGB.

2) Set the PSM to Standard mode in Picture menu.

3) Press ADJ key on R/C for adjustment.

4) Press the

G(Vol. +) key operate To set, then it becomes

automatically.

5) Auto-RGB OK means completed adjustment.

12. Default value in adjustment mode

( Default valued maybe modified during E/S & L/P Event for
adjustment time reduction, but will be fixed beforeMass Production.)

12-1. Auto Color Balance (Component/RGB)

12-2. White Balance

13. EEPROM Data Write

13-1. Signal TABLE

CMD : A0h
LENGTH : 85~94h (1~16 bytes)
ADH : E2PROM Sub Address high (00~1F)
ADL : E2PROM Sub Address low (00~FF)
Data : Write data
CS :

CMD + LENGTH + ADH + ADL + Data_1 + ... + Data_n

Delay : 20ms

13-2. Command Set

* Description

FOS Default write : <7mode data> write
Vtotal, V_Frequency, Sync_Polarity, Htotal, Hstart, Vstart, 0, Phase
Data write : Model Name and Serial Number write in EEPROM,.

13-3. Method & notice

1) Serial number D/L is using of scan equipment.

2) Setting of scan equipment operated by Manufacturing
Technology Group.

3) Press FRONT-AV on control R/C before Serial number D/L.

4) Serial number D/L must be conformed when it is produced
in production line, because serial number D/L is mandatory
by D-book 4.0.

(Fig. 13) Default Value on OSD

(Fig. 12) Default Value on OSD

(Fig. 11) Auto RGB Color Balance Test Pattern

CMD

LENGTH

ADH ADL

DATA_1 DATA_N

... CS DELAY

No

1

EEPROM WRITE

A0h 84h+n n-byted Write

(n=1~16)

Adjust mode CMD(hex) LENGTH(hex) Description

- 17 -

TROUBLE SHOOTING GUIDE

1. Power Board

1-1. The full flowchart for the voltage output

Start check

Manufacture’s model

passage

1. Check the Power Off
status.

Does the whole
screen appear?

Is it

identical to when the

power is off?

No

Yes

No

Yes

Yes

Yes

Yes

2. Check the Interface
signal status.

Is the Interface

signal operating?

Yes

3. Check the St-by 5V
signal circuit.

Does the

low pressure output

appear?

Does the

St-by 5V signal

appear?

No

No

Yes

4. Check the 5V Monitor
signal circuit.

Does the

5V Monitor signal

appear?

No

7. Check the VSC Vs-ON
signal

Does the

high tension output

appear?

Does the

VSC signal Vs-ON

appear?

No

No

Does the

high tension

output voltage

occur?

When

removing the Y B/D

Module input connector,

does output voltage

drop?

When the

Y, Z B/D Module

input connector, does Power

Board high tension

output voltage drop?

No No No

9. Check the Power
Board Output high

tension circuit

Yes

10. Check the Z B/D
Module output circuit

Yes

When

removing the Z B/D

Module input connector,

does output voltage

drop?

11. Check the Y B/D

Module output circuit

Yes

Yes

8. Check the Vs, Va

voltage output circuit.

Does the

Vs, Va voltage output

appear?

No

Yes

Yes

5. Check the VSC RL-ON
signal.

Does the

VSC signal RL-ON

appear?

No

6. Check the VSC low
pressure output

Does the

VSC low pressure

output appear?

No