LG 42PQ210R User manual

PLASMA TV
SERVICE MANUAL
CAUTION
BEFORE SERVICING THE CHASSIS,
READ THE SAFETY PRECAUTIONS IN THIS MANUAL.
CHASSIS : PP91B
MODEL : 42PQ210R 42PQ210R-ZD
North/Latin A erica http://aic.lgservice.co
Europe/Africa http://eic.lgservice.co
Asia/Oceania http://biz.lgservice.co
Internal Use Only
P/NO : MFL60273010 (0909-REV00) Printed in Korea

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CONTENTS
CONTENTS ............................................................................................................................... 2
SAFETY PRECAUTIONS ...........................................................................................................3
SPECIFICATION.........................................................................................................................4
ADJUSTMENT INSTRUCTION ..................................................................................................8
BLOCK DIAGRAM ...................................................................................................................16
EXPLODED VIEW ..................................................................................................................1
SVC. SHEET ................................................................................................................................

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SAFETY PRECAUTIONS
Many electrical and mechanical parts in this chassis have special sa ety-related characteristics. These parts are identi ied by in the
Schematic Diagram and Exploded View.
It is essential that these special sa ety parts should be replaced with the same components as recommended in this manual to prevent
X-RADIATION, Shock, Fire, or other Hazards.
Do not modi y the original design without permission o manu acturer.
General Guidance
An isolation Transformer should always be used during the
servicing o a receiver whose chassis is not isolated rom the AC
power line. Use a trans ormer o adequate power rating as this
protects the technician rom accidents resulting in personal injury
rom electrical shocks.
It will also protect the receiver and it's components rom being
damaged by accidental shorts o the circuitry that may be
inadvertently introduced during the service operation.
I any use (or Fusible Resistor) in this monitor is blown, replace it
with the speci ied.
When replacing a high wattage resistor (Oxide Metal Film Resistor,
over 1W), keep the resistor 10mm away rom PCB.
Keep wires away rom high voltage or high temperature parts.
Due to high vacuum and large sur ace area o picture tube,
extreme care should be used in handling the Picture Tube.
Do not li t the Picture tube by it's Neck.
Leakage Current Cold Check(Antenna Cold Check)
With the instrument AC plug removed rom AC source, connect an
electrical jumper across the two AC plug prongs. Place the AC
switch in the on position, connect one lead o 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.
I 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 in inite.
An other abnormality exists that must be corrected be ore 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 or 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 o the limits speci ied, there is
possibility o shock hazard and the set must be checked and
repaired be ore 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

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SPECIFICATIONS
NOTE : Speci ications and others are subject to change without notice or improvement
.
VApplication Range
This spec is applied to PDP TV used PP91A/B/C/D 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 o each product is marked by models.
4) Speci ication and per ormance o each parts are ollowed each drawing and speci ication by part number in accordance with SBOM.
5) The receiver must be operated or about 20 minutes prior to the adjustment.
VTest Method
1) Per ormance : LGE TV test method ollowed.
2) Demanded other speci ication
Sa ety : CE, IEC speci ication
EMC : CE, IEC

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VModule Specification
(1) 42” XGA
(2) 50” WXGA
(3) 50” FHD
Display Screen Device
Aspect Ratio
PDP Module
Operating Environment
Storage Environment
Input Voltage
1
2
3
4
5
6
No Item Speci ication Remark
50 inch 16:9 Color plasma Display Module
16:9
PDP50G2####,
RGB Closed(Well) Type
1) Temp. : 0 ~ 55deg
2) Humidity : 20 ~ 80%
3) Temp. : -10 ~ 60deg
4) Humidity : 10 ~ 90%
AC100-240V~, 50/60Hz
PDP
Glass Filter
LGE SPEC.
Maker: LGIT
Display Screen Device
Aspect Ratio
PDP Module
Operating Environment
Storage Environment
Input Voltage
1
2
3
4
5
6
No Item Speci ication Remark
50 inch 16:9 Color plasma Display Module
16:9
PDP50H3####,
RGB Closed Type
1) Temp. : 0 ~ 55deg
2) Humidity : 20 ~ 80%
3) Temp. : -10 ~ 60deg
4) Humidity : 10 ~ 90%
AC100-240V~, 50/60Hz
PDP
Glass Filter
LGE SPEC.
Maker: LGIT
Display Screen Device
Aspect Ratio
PDP Module
Operating Environment
Storage Environment
Input Voltage
1
2
3
4
5
6
No Item Speci ication Remark
42 inch 16:9 Color plasma Display Module
16:9
PDP42G2####,
RGB Closed Type
1) Temp. : 0 ~ 60deg
2) Humidity : 20 ~ 80%
3) Temp. : -20 ~ 60deg
4) Humidity : 10 ~ 90%
AC100-240V~, 50/60Hz
PDP
Glass Filter
LGE SPEC.
Maker: LGIT

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VModel General Specification
(1) EU Spec.(ZA)
(2) NON-EU Spec.(TA)
No Item Speci ication Remark
1. Market EU
2. Broadcasting system PAL BG/I/DK, SECAM SECAM-L spec out
3. Available Channel BAND PAL
VHF/UHF C1_C69
CATV S1_S47
4. Receiving system Upper Heterodyne
5. SCART Input(2EA) PAL Full Scart 1EA, Hal 1EA
6. Video Input (1EA) PAL Side 1EA, PQ100R Not support.(side av spec out)
7 Component Input (1EA) Y/Cb/Cr, Y/ Pb/Pr PQ100R Not support.(side av spec out)
8 RGB Input (1EA) RGB-PC PQ100R Not support. (RGB spec out)
9 HDMI Input 1EA HDMI-DTV, Only PCM MODE Rear HDMI 1EA (only PQ100R)
2EA Rear HDMI 2EA
3EA Rear HDMI 2EA , Side HDMI 1EA(Only 42/50PQ600R-ZA)
10 Audio Input (5EA) PC Audio, AV (3EA), L/R Input(PC 1EA,SCART 2EA, SIDE AV 1EA
Component (1EA) Component 1EA) or PQ200R/300R/600R
LR Input(SCART 2EA) or PQ100R
11 USB Input(1EA) SD Divx, MP3, JPEG 42/50PQ100R-ZA : USB Spec out (Only SW Download)
42/50PQ200R-ZA/42PQ210R-ZD
: USB Spec out ( Only SW Download )
42/50PQ300R-ZA : only apply or MP3, JPEG
( SD Divx Spec out )
42/50PQ600R-ZA : apply SD Divx, MP3, JPEG

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(3) Central and South America(MA)

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ADJUSTMENT INSTRUCTION
1. Application Range
This spec sheet is applied to all o the PP91B chassis.
2. Specification
(1) Because this is not a hot chassis, it is not necessary to use
an isolation trans ormer. However, the use o isolation
trans ormer will help protect test instrument.
(2) Adjustment must be done in the correct order.
(3) The adjustment must be per ormed in the circumstance o
25±5°C o temperature and 65±10% o relative humidity i
there is no speci ic designation.
(4) The input voltage o the receiver must keep 100~240V,
50/60Hz.
(5) The receiver must be operated or about 5 minutes prior to
the adjustment when module is in the circumstance o over
15°
- In case o keeping module is in the circumstance o 0°C,
it should be placed in the circumstance o above 15°C or
2 hours
- In case o keeping module is in the circumstance o below
-20°C, it should be placed in the circumstance o above
15°C or 3 hours,.
3. S/W Program Download
3-1. Profile
This is or downloading the s/w to the lash memory o the
IC603
3-2. Equipment
(1) PC
(2) ISP_tool program
(3) Download jig
3-3. Connection Structure
3-4. Connection Condition
(1) IC name and circuit number : Flash Memory and IC603
(2) Use voltage : 3.3V (5 pin)
(3) SCL : 15 pin
(4) SDA : 12 pin
(5) Tact time : about 2min and 30seconds
3-5. Download Method (By using MSTAR JIG)
(1) Preliminary Steps
1) Connect the download jig to D-sub jack
2) Connect the PC to USB jack
(2) Download Steps
1) Execute ‘ISP Tool’ program in PC, then a main window will
be opened
Double click

2) Click the connect button and con irm “Dialog Box”.
3) Click the Con ig button and Change speed
E2PROM Device setting : over the 350Khz
4) Read and write bin ile
Click “(1)Read” tab, and then load download ile(XXXX.bin)
by clicking “Read”.
5) Click “Auto(2)” tab and set as below
6) Click “Run(3)”.
7) A ter downloading, check “OK(4)” message.
3-6. Download Method (By using USB
Memory Stick)
[Caution]
- Using ‘power on’ button o the control R/C, power on TV.
- USB ile (EPK) version must be bigger than downloaded
version o main B/D.
(1) Using ‘Power ON’ button o the control R/C, Power on TV.
(2) Insert the USB memory stick to the SET.
(3) Display USB loding message then, push the ‘Exit’ Key o
control R/C
(4) Push the ‘MENU’ Key and move the cusor ‘OPTION’ o
OSD ( Fig. 1)
* Caution: Don’t push the ‘OK’ key.Just cusor is on the
‘OPTION’ menu.
(5) Push the “7” key o control R/C continuously.
Then, Display “TV So tware Update” Pop-up menu. (Fig. 2)
(6) Select SW ile (XXXX.bin) you want, push the “OK” Key.
(7) S/W download process is excuted automatically.
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( Fig. 1)
( Fig. 2)

4. PCB Assembly Adjustment Method
4-1. Option Adjustment Following BOM
Tool Option
Area Option
Option 1
Option 2
Option 3(Available or EU & Non EU model)
* Pro ile: Must be changed the option value because being
di erent with some setting value depend on module, inch
and market
* Equipment : Adjustment Remote Controller
(1) Push the IN-START key in the Adjust R/C.
(2) Enter Password number. The value o Password is “0 0 0
0”.
(3) Input the Option Number that was speci ied in the BOM,
into the Shipping area.
(4) Select “Tool Option/ Area Option” by using D/E(CH+/-)
key, and press the number key(0~9) consecutively
ex) I the value o Tool Option1 is 4, input the data using
number key “4” (Fig. 3)
Caution: Don’t Push “IN-STOP” key a ter PCB assembly
adjustment.
(5) EDID D/L Method
A ter so tware D/L or PCBA manu acturing, you can
download EDID Data.
When you adjust Tool Option, H6 Model EDID download
process is executed automatically
* I the model don’t have HDMI 3, HDMI 3 will be disappeared
at OSD Window.
Caution: When you adjust tool option, don’t connect HDMI or D-
sub cable.
I you connect some cable, EDID D/L process will be
ailed.
(6) Adjustment method
Be ore PCBA check, have to change the Tool option and Area
option
[About PDP
A ter done all adjustments, Press IN-START button and
compare Tool option and Area option value with its BOM, i it
is correctly same then Change “RF mode” and then unplug
the AC cable.
I it is not same, then correct it same with BOM and unplug AC
cable.
For correct it to the model’s module rom actory JIG model.
[Don’t push The IN-STOP KEY a ter completing the unction
inspection.
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.
.
MODEL : XXXXXX Module : XXXX
S/W Ver. : X.XX ROM : XXXXXXX
UTT X Temp : xxxxx : Celsius
ADC CAL.
RGB : OK
Component SD OK
Component HD OK
EDID RGB(OK) HDMI1(NG) HDMI2(NG) HDMI3(NG)
Tool Option  4
Area Option  40
Option 1 17
Option 2 40
.
.
MODEL : XXXXXX Module : XXXX
S/W Ver. : X.XX ROM : XXXXXXX
UTT X Temp : xxxxx : Celsius
ADC CAL.
RGB : OK
Component SD OK
Component HD OK
EDID RGB(OK) HDMI1(OK) HDMI2(OK) HDMI3(OK)
Tool Option  4
Area Option  40
Option 1 17
Option 2 40
( Fig. 3)

5. EDID(The Extended Display
Identification Data)
Originally H6(PP91A/B) Model EDID download process is
executed when you adjust Tool Option.
[Caution
- Use the proper signal cable or EDID Download
- Never connect HDMI & D-SUB Cable at the same time.
- Use the proper cables below or EDID Writing
5-1. Profile: To be possible or plug and play
5-2. Equipment
(1) Adjusting PC with S/W or writing EDID Data.(S/W: EDID
TESTER Ver.2.5)
(2) A Jig or EDID Download
(3) Cable : Serial(9Pin or USB) to D-sub 15Pin cable, D-sub
15Pin cable, DVI to HDMI cable.
5-3. Connection Structure
Caution: Never connect HDMI & D-SUB Cable at the same time.
5-4. EDID Data
OWXGA EDID DATA(50inch)
<Analog(RGB) : 128bytes>
<HDMI 1 : 256bytes>
<HDMI 2 : 256bytes>
<HDMI 3 : 256bytes> SIDE HDMI(HDMI 3) is adjusted above
60Tool model
OXGA EDID DATA(42inch)
<Analog(RGB) : 128bytes>
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Connection Diagram o EDID

<HDMI 1 : 256bytes>
<HDMI 2 : 256bytes>
<HDMI 3 : 256bytes> SIDE HDMI(HDMI 3) is adjusted above
60Tool model
6. HDCP(High-Bandwidth Digital
Contents Protection) Download
HDCP download process is deleted in H6 models
In H6 models, it is usimg the EEPROM masking HDCP Key
. Manual ADC Adjustment
(Component 1, RGB)
[Caution]
- Do not connect external input cable
- Adjustment result is applied to SET On/O later.
* Adjustment is done using internal ADC, so input signal is not
necessary.
-1. COMPONENT ADC (SD / HD)
(1) Convert to Component1 input source.
(2) Press ADJ key on R/C or adjustment.
(3) Enter Password number. The value o Password is “0 0 0
0”.
(4) Select “0. ADC calibration” by using D/E(CH +/-) and press
ENTER(V).
(5) Start ADC adjustment by using F/G(VOL +/-) or press
ENTER(V).
(6) ADC adjustment is executed automatically .
When ADC adjustment is inished, this OSD appear.
-2. RGB input ADC
Auto RGB Gain/O set Adjustment
(1) Convert to PC in Input-source
(2) Press ADJ key on R/C or adjustment.
(3) Enter Password number. The value o Password is “0 0 0
0”.
(4) Select “0. ADC calibration” by using D/E(CH +/-) and press
ENTER(V).
(5) Start ADC adjustment by using F/G(VOL +/-) or press
ENTER(V).
(6) ADC adjustment is executed automatically .
When ADC adjustment is inished, this OSD appear.
Notice : A ter All mode check, set the Speaker Volume “0”.
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RF input
NO SIGNAL or White noise
AV / Component / RGB input
NO SIGNAL

Notice : From this sentence, All working is mass production.
8. POWER PCB Assy Voltage
Adjustment(Vs voltage Adjustment)
8-1. Test Equipment: D.M.M 1EA
8-2. Connection Diagram for Measuring
Re er to (Fig. 4)
8-3. Adjustment Method
(1) Vs Adjustment
1) Connect + terminal o D. M..M. to Vs pin o P702,
connect -terminal to GND pin o P702.
2) A ter turning VR901, voltage o D.M.M adjustment as
same as Vs voltage which on label o panel right/top (
deviation ; ±0.5V)
9. Adjustment of White Balance
9-1. Purpose and Principle for Adjustment
of the Color Temperature
(1) Purpose: Adjust the color temperature to reduce the
deviation o the module color temperature.
(2) Principle : To adjust the white balance without the
saturation, Fix the one o R/G/B gain to C0 and decrease
the others.
(3) Adjustment mode: Two modes o Cool, Warm and Medium
9-2. Required Equipment
(1) Remote controller or adjustment
(2) Color Analyzer : CA-100+ or CA-210 or same product
- PLASMA TV(ch : 10)
(3) Auto W/B adjustment instrument(only or Auto adjustment)
- Do the white balance adjustment under the 10LUX
[Notice: When using the Color Analyzer with PDP,
recommend the CA-100 more than CA-210.
I CA-100 can not available, it is also good to use the CA-210.
(4) PC ( or communication through RGB)
(5) Pattern Generator (MSPG-925FA etc.)
-Be ore white balance, press the ADJ key and select third
row like (Fig. 5)
-To enter White-balance mode, Enter Password Number “0
0 0 0” and select third row.
[Caution: System control Host should be “DDC” or adjustment.
(6) Adjust W/B DATA, or all CSM, choose ‘COPY ALL’
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P811 Vs ADJ
VR901
(Fig. 4)
EZ ADJUST
0. ADC CALIBRATION : TV
1. ADC ADJUST
2. SUB B/C ADJUST
3. W/B ADJUST
4. WHITE PATTERN : OFF
5. EDID D/L
(Fig. 5)
3. W/B ADJUST
Mode : TV
TEMPERATURE : Medium
R-Gain. : 192
G-Gain. : 192
B-Gain. : 192
R-O set : 128
G-O set : 128
B-O set : 128
COPY ALL
(Fig. 6)

9-3. Connecting Diagram of Equipment for
Measuring (For Automatic Adjustment)
(Method 2, using RS-232C, You connect RS-232C Cable)
(1) Enter the adjustment mode o the white balance
- Enter the white balance adjustment mode at the same time
heat-run mode when pushing the power on by power only
key
- Maintain the white balance adjustment mode with same
condition o Heat-run
- Maintain a ter AC o /on in status o Heat-run pattern display
(2) Release the white balance adjustment mode
- Release the adjust mode a ter AC o /on or std-by o /on in
status o inishing the Hear-run mode
- Release the Adjust mode when receiving the aging o
command(F3 00 00) rom adjustment equipment)
(3) Enter the adjust mode o white balance
- Enter the white balance adjustment mode with aging
command(F3, 00, FF)
9-4. Adjustment of White Balance for
Manual Adjustment(method 3)
Adjustment mode: Three modes o Cool, Medium(Vivid) and
Warm
- Equipment : 1) Color analyzer(CA100+, CA210) should be
used in the calibrated ch by CS-1000(PDP :
CH10)
2) Adjustment remocon
- For manual adjustment, it is also possible by the ollowing
sequence.
Operate the zero-calibration o the CA-100+ or CA-210, then
stick sensor to the module when adjusting.
(1) Select white pattern o heat-run by pressing “POWER ON”
key on remote control or adjustment then operate heat run
longer than 5 minutes. (recommend)
(I not executed this step, the condition or W/B will be
di erent)
(2) Changing to the AV mode by remote control.(Push ront-
AV)
(3) Input external pattern(85% white pattern).
(4) Stick sensor to center o the screen and select each items
(Red/Green/Blue Gain and O set) using D/E(CH +/-) key
on R/C..
(5) Adjust R/ G/ B Gain using F/G(VOL +/-) key on R/C.
(6) Adjust three modes o Cool, Medium(Vivid) and Warm as
below igure.
(Fix the one o R/G/B and change the others)
- Push the “VOL + “ key : Cool, Medium, Warm
[ Re er to the below case to know what value is ixed.
[CASE]
First adjust the coordinate much away rom the target value(x, y).
1. x, y > target
1) Decrease the R, G.
2. x, y < target
1) First decrease the B gain,
2) Decrease the one o the others.
- In case o decreasing the x, decreasing the R : ix G
- In case o decreasing the y , decreasing the G : ix R
3. x > target , y < target
1) First decrease B, so make y a little more than the target.
2) Adjust x value by decreasing the R
4. x < target , y > target
1) First decrease B, so make x a little more than the target.
2) Adjust x value by decreasing the G
(7) When adjustment is completed, Exit adjustment mode
using EXIT key on R/C.
9-5. Connecting diagram of Equipment for
Measuring (For Automatic Adjustment)
(method 1, using IIC, You connect RGB Cable)
(1) Enter the adjustment mode o the white balance
- Enter the white balance adjustment mode at the same time
heat-run mode when pushing the power on by power only
key
- Maintain the white balance adjustment mode with same
condition o Heat-run
- Maintain a ter AC o /on in status o Heat-run pattern display
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+0.0036,500K
Warm
+0.0009,300K
Medium
+0.00011,000K
Cool 0.276±0.002
0.285±0.002 0.293±0.002
0.329±0.002
0.313±0.002
0.283±0.002
YX uvTemp
Color coordinate
Mode
Method 1-(I2C)
Method 2-(RS-232C)

(2) Release the white balance adjustment mode
- Release the adjust mode a ter AC o /on or std-by o /on in
status o inishing the Hear-run mode
- push the “power on” key(IIC Mode) on Adjust remote-
controller.
- Release the Adjust mode when receiving the aging o
command(F3 00 00) rom adjustment equipment)
(3) Enter the adjust mode o white balance
- Enter the white balance adjustment mode with aging
command(F3, 00, FF)
OColor Temperature & Color Coordinates Setting
- When adjusting the Color Temperature, Color Analyzer CA-
210(Matrix should be corrected through CH10 o CS-1000)
should be used. When CA-210 have used, it don’t need to it
the CH10.
- Adjust the Color Temperature based below adjustment color
coordinates.
OTarget Value CA-210(LCD : CH 9, PDP : CH10), CA-100(PDP)
(Standard color coordinate and temperature when using the
CA-100+ or CA210 equipment)
OAbove optical characteristics are should be measured by
ollowing condition.
ODDC Adjustment Command Set
[R/G/B GAIN max value : C0
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+0.0036,500K
Warm
+0.0009,300K
Medium
+0.00011,000K
Cool 0.276±0.002
0.285±0.002 0.293±0.002
0.329±0.002
0.313±0.002
0.283±0.002
YX uvTemp
Color coordinate
Mode
Adjustment
Adjustment
Adjustment

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BLOCK DIAGRAM

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EXPLODED VIEW
A10
900
901
400
520
590
240
250
300
305
301
303
302 200
120
580
260
270 603
602 601
501
A2
LV1
570
560
310
330
201
203
205
204
206
202
Many electrical and mechanical parts in this chassis have special sa ety-related characteristics. These
parts are identi ied by in the Schematic Diagram and EXPLODED VIEW.
It is essential that these special sa ety parts should be replaced with the same components as
recommended in this manual to prevent X-RADIATION, Shock, Fire, or other Hazards.
Do not modi y the original design without permission o manu acturer.
IMPORTANT SAFETY NOTICE