LG 42PQ100R User manual

PLASMA TV
SERVICE MANUAL
CAUTION
BEFORE SERVICING THE CHASSIS,
READ THE SAFETY PRECAUTIONS IN THIS MANUAL.
CHASSIS : PP91D
MODEL : 42PQ100R 42PQ100R-ZA
North/Latin America http://aic.lgservice.com
Europe/Africa http://eic.lgservice.com
Asia/Oceania http://biz.lgservice.com
Internal Use Only
P/NO : MFL62341201 (0905-REV00) Printed in Korea

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CONTENTS
CONTENTS ............................................................................................................................... 2
SAFETY PRECAUTIONS...........................................................................................................3
SPECIFICATION.........................................................................................................................4
ADJUSTMENT INSTRUCTION..................................................................................................8
BLOCK DIAGRAM ...................................................................................................................16
EXPLODED VIEW ..................................................................................................................17
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

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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Chassis
PP91A/B/C/D
Model Name Market Brand Remark
42/50PQ10R- TA NON- EU LG
42/50PQ30R- TA NON- EU LG
42/50PQ60R- TA NON- EU LG
42/50PQ70BR- TA NON- EU LG
50/60PS80BR- TA NON- EU LG
50PS60FR- TC NON- EU LG
42/50PQ600R-ZA EU LG
42/50PQ300R-ZA EU LG
42/50PQ200R-ZA EU LG
42/50PQ100R-ZA EU LG
Model Name Market Remark Appliance
42/50PQ600R- ZA
42/50PQ300R- ZA EU Sa ety: IEC/ EN60065 , EMI: EN55013 , EMS : EN55020 TEST
42/50PQ200R- ZA
42/50PQ100R- ZA
42/50PQ10R- TA
42/50PQ30R- TA
42/50PQ60R- TA NON- EU Sa ety : IEC/ EN60065, EMI : CISPR13 TEST4. Electrical Speci ication
42/50PQ70BR- TA
50/60PS80BR- TA
50PS60FR- TC

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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)

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(3) Central and South America(MA/MB)

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ADJUSTMENT INSTRUCTION
1. Application Range
This spec sheet is applied to all o the PP91A/B/C/D 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)
(PP91C/D Not support)
(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)
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( Fig. 1)
( Fig. 2)

(6) Select SW ile (XXXX.bin) you want, push the “OK” Key.
(7) S/W download process is excuted automatically.
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 Data
OWXGA EDID DATA(50inch)
<Analog(RGB) : 128byt s>
<HDMI 1 : 256byt s>
<HDMI 2 : 256byt s>
<HDMI 3 : 256byt s>
SIDE HDMI(HDMI 3) is adjust d abov 60 Tool mod l
OXGA EDID DATA(42inch)
<Analog(RGB) : 128byt s>
<HDMI 1 : 256byt s>
<HDMI 2 : 256byt s>
<HDMI 3 : 256byt s>
SIDE HDMI(HDMI 3) is adjust d abov 60Tool mod l
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O FHD EDID DATA (50/60inch–PQ70BR, PS60FR, PS80BR Tool )
<Analog(RGB): 128byt s>
< HDMI 1 : 256byt s>
< HDMI 2 : 256byt s>
<HDMI 3 : 256Byt s> SIDE HDMI(HDMI 3)
6. HDCP(High-Bandwidth Digital
Contents Protection) Download
HDCP download proc ss is d l t d in H6 mod ls
In H6 mod ls, it is usimg th EEPROM masking HDCP K y
7. Manual DC djustment
(Component 1, RGB)
[Caution]
- Do not conn ct xt rnal input cabl
- Adjustm nt r sult is appli d to SET On/Off lat r.
* Adjustm nt is don using int rnal ADC, so input signal is not
n c ssary.
7-1. COMPONENT DC (SD / HD)
(1) Conv rt to Compon nt1 input sourc .
(2) Pr ss ADJ k y on R/C for adjustm nt.
(3) Ent r Password numb r. Th valu of Password is “0 0 0
0”.
(4) S l ct “0. ADC calibration” by using D/E(CH +/-) and pr ss
ENTER(V).
(5) Start ADC adjustm nt by using F/G(VOL +/-) or pr ss
ENTER(V).
(6) ADC adjustm nt is x cut d automatically .
Wh n ADC adjustm nt is finish d, this OSD app ar.
7-2. RGB input DC (PP91C/D Not Support)
Auto RGB Gain/Offs t Adjustm nt
(1) Conv rt to PC in Input-sourc
(2) Pr ss ADJ k y on R/C for adjustm nt.
(3) Ent r Password numb r. Th valu of Password is “0 0 0
0”.
(4) S l ct “0. ADC calibration” by using D/E(CH +/-) and pr ss
ENTER(V).
(5) Start ADC adjustm nt by using F/G(VOL +/-) or pr ss
ENTER(V).
(6) ADC adjustm nt is x cut d automatically .
Wh n ADC adjustm nt is finish d, this OSD app ar.
Notice : Aft r All mod ch ck, s t th Sp ak r Volum “0”.
7-3. SC RT RGB input DC (Only for PP91C/D)
(1) Conv rt to RF input sourc .
(2) Pr ss ADJ k y on R/C for adjustm nt.
(3) Ent r Password numb r. Th valu of Password is “0 0 0
0”.
(4) S l ct “0. ADC calibration” by using D/E(CH +/-) and pr ss
ENTER(V).
(5) Start ADC adjustm nt by using F/G(VOL +/-) or pr ss
ENTER(V).
(6) ADC adjustm nt is x cut d automatically .
Wh n ADC adjustm nt is finish d, this OSD app ar
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RF input
NO SIGNAL or Whit nois
AV / Compon nt / RGB input
NO SIGNAL

Notice : Aft r All mod ch ck, s t th Sp ak r Volum “0”.
Caution : Don’t Pr ss th Pow r K y on R mot Controll r.
Just AC Pow r Off. ( Not DC off )
Notice : From this s nt nc , All working is mass production.
8. POWER PCB ssy Voltage
djustment(Vs voltag Adjustm nt)
8-1. Test Equipment: D.M.M 1EA
8-2. Connection Diagram for Measuring
R f r to (Fig. 4)
8-3. djustment Method
(1) Vs djustment
1) Conn ct + t rminal of D. M..M. to Vs pin of P702,
conn ct -t rminal to GND pin of P702.
2) Aft r turning VR901, voltag of D.M.M adjustm nt as
sam as Vs voltag which on lab l of pan l right/top (
d viation ; ±0.5V)
9. djustment of White Balance
9-1. Purpose and Principle for djustment
of the Color Temperature
(1) Purpos : Adjust th color t mp ratur to r duc th
d viation of th modul color t mp ratur .
(2) Principl : To adjust th whit balanc without th
saturation, Fix th on of R/G/B gain to C0 and d cr as
th oth rs.
(3) Adjustm nt mod : Two mod s of Cool, Warm and M dium
9-2. Required Equipment
(1) R mot controll r for adjustm nt
(2) Color Analyz r : CA-100+ or CA-210 or sam product
- PLASMA TV(ch : 10)
(3) Auto W/B adjustm nt instrum nt(only for Auto adjustm nt)
- Do th whit balanc adjustm nt und r th 10LUX
[Notic : Wh n using th Color Analyz r with PDP,
r comm nd th CA-100 mor than CA-210.
If CA-100 can not availabl , it is also good to us th CA-210.
(4) PC (for communication through RGB)
(5) Patt rn G n rator (MSPG-925FA tc.)
-B for whit balanc , pr ss th ADJ k y and s l ct third
row lik (Fig. 5)
-To nt r Whit -balanc mod , Ent r Password Numb r “0
0 0 0” and s l ct third row.
[Caution: Syst m control Host should b “DDC” for adjustm nt.
(6) Adjust W/B DATA, for all CSM, choos ‘COPY ALL’
9-3. Connecting Diagram of Equipment for
Measuring (For Automatic Adjustm nt)
(M thod 2, using RS-232C, You conn ct RS-232C Cabl )
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(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
Mod  : TV
TEMPERATURE : M dium
R-Gain. : 192
G-Gain. : 192
B-Gain. : 192
R-Offs t : 128
G-Offs t : 128
B-Offs t : 128
COPY ALL
(Fig. 6)
M thod 2-(RS-232C)

(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
(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.
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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)

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.
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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
ODDC Adjustment Command Set
[R/G/B GAIN max value : C0
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
501
A2
LV1
570
560
310
330
201
203
205
204
206
202
Many electrical an mechanical parts in this chassis have special safety-relate characteristics. These
parts are i entifie by in the Schematic Diagram an EXPLODED VIEW.
It is essential that these special safety parts shoul be replace with the same components as
recommen e in this manual to prevent X-RADIATION, Shock, Fire, or other Hazar s.
Do not mo ify the original esign without permission of manufacturer.
IMPORTANT SAFETY NOTICE

A-PDF Merger DEMO : Purchase from www.A-PDF.com to remove the watermark
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LGE Internal Use Only

Copyright ⓒ 2009 LG Electronics. Inc. All right reserved.
Only for training and service purposes
LGE Internal Use Only

Copyright ⓒ 2009 LG Electronics. Inc. All right reserved.
Only for training and service purposes
LGE Internal Use Only