LG 50PZ570 User manual

PLASMA TV
SERVICE MANUAL
CAUTION
BEFORE SERVICING THE CHASSIS,
READ THE SAFETY PRECAUTIONS IN THIS MANUAL.
CHASSIS : PA12A
MODEL : 50PZ570 50PZ570-TB
North/Latin A erica http://aic.lgservice.co
Europe/Africa http://eic.lgservice.co
Asia/Oceania http://biz.lgservice.co
Internal Use Only
Printed in Korea
P/NO : MFL66986403(1102-REV00)

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CONTENTS
CONTENTS ............................................................................................................................... 2
SAFETY PRECAUTIONS ...........................................................................................................3
SPECIFICATION.........................................................................................................................4
ADJUSTMENT INSTRUCTION ..................................................................................................6
BLOCK DIAGRAM....................................................................................................................11
EXPLODED VIEW ..................................................................................................................12
CIRCUIT DIAGRAM .....................................................................................................................

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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.
Ge eral Guida ce
An isolatio Tra sformer 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 ha dli g the Picture Tube.
Do not li t the Picture tube by it's Neck.
Leakage Curre t Cold Check(A te a 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 Curre t Hot Check (See below Figure)
Plug the AC cord directly into the AC outlet.
Do ot use a li e Isolatio Tra sformer duri g 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 Curre t 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 .
VApplicatio Ra ge
This spec is applied to PDP TV used PA12A Chassis.
V Specificatio
Each part is tested as below without special appointment.
(1) Temperature : 25 °C ± 5 °C (77 °F ± 9 °F), CST : 40 ± 5
(2) Relative Humidity: 65 % ± 10 %
(3) Power Voltage: Standard Input voltage (100 V - 240 V ~, 50 / 60 Hz)
* 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
VModule Specificatio
(1) 3D 50” FHD
50PZ570-TB Australia, New Zealand, Thailand LG
Model Name Market Place Brand
No Item Speci ication Remark
1 Display Screen Device 127 cm (50 inch) wide Color Display Module PDP
2 Aspect Ratio 16:9
3 PDP Module PDP50R3####,
RGB Closed (Well) Type, Glass Filter (43%)
Pixel Format: 1920 horiz. By 1080 ver.
4 Operating Environment 1) Temp. : 0 deg ~ 40 deg
2) Humidity : 20 % ~ 80% LGE SPEC
5 Storage Environment 3) Temp. : -20 deg ~ 60 deg
4) Humidity : 10 % ~ 90 %
6 Input Voltage AC 100 V ~ 240 V, 50 / 60 Hz Maker LG
50PZ570-TB Australia, New Zealand, Thailand Sa ety : IEC/EN60065, EMI : CISPR13
Model Name Market Place Appliance

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VModel Ge eral Specificatio
No Item Speci ication Remarks
1 Market Australia, New Zealand, Malaysia, Indonesia, 36 Country
Singapore, South A rica
2 Broadcasting system PAL/SECAM-BG/DK , PAL-I, DVB-T
3 Receiving system Analog : Upper Heterodyne
Digital : COFDM
4 Video Input (1EA) PAL, SECAM, NTSC Side AV
5 Component Input (2EA) Y/Cb/Cr, Y/ Pb/Pr
6 RGB Input RGB-PC Analog (D-Sub 15Pin)
7 HDMI Input (4EA) HDMI-PC
HDMI-DTV HDMI1/DVI, HDMI2, HDMI3, HDMI4
8 Audio Input (3 EA) RGB/DVI Audio, Component, AV L/R Input
9 SPDIF Out(1 EA) SPDIF Out
10 USB(2EA) For SVC, S/W Download, X-Studio, DivX
11 Ethernet LAN

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ADJUSTMENT INSTRUCTION
1. Applicatio Ra ge
This spec sheet is applied to all o the PA12A chassis.
2. Specificatio
(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 °C ± 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 V ~ 240
V, 50 / 60 Hz.
(5) The receiver must be operated or about 5 minutes prior to
the adjustment when module is in the circumstance o over
15 °C
- 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,.
OA ter RGB Full White in HEAT-RUN Mode, the receiver
must be operated prior to the adjustment.
OEnter into HEAT-RUN MODE
1) Press the POWER ON KEY on R/C or adjustment.
2) OSD display and screen display PATTERN MODE.
- Set is activated HEAT run without signal generator in this
mode.
- Single color pattern ( WHITE ) o HEAT RUN MODE uses
to check panel.
- Caution : I you turn on a still screen more than 20
minutes (Especially digital pattern, cross hatch
pattern), an a ter image may be occur in the
black level part o the screen.
3. PCB assembly adjustme t
method
Caution: Using ‘power on’ button o the control R/C power on TV.
3-1. Dow load MAC Address,
CI+ Key a d widevi e Key.
* Connect TV SET and PC which download keys Writing
program by RS232C-Cable
(1) Start Program and Click ‘start’ Button to connect TV and
PC.
(2) When download succeed, you can see “OK” on the
screen.
* Each Chassis has it’ own MAC Address. Please be care ul o
download.
3-2. ADC Adjustme t
O Auto-control adjustment protocol(RS-232C)
(1) Adjustment o RGB
1) Convert to PC in Input-source.
2) Signal equipment displays
Output Voltage: 700 mVp-p
Impress Resolution FHD (1920 x 1080 @ 60Hz)
Model : 225 in Pattern Generator
Pattern : 65 in Pattern Generator
(MSPG-925 SERISE)
3) Adjust by commanding AUTO_COLOR_ADJUST
Order Command Set response
1. Inter the aa 00 00 a 00 OK00x
Adjustment
mode
2. Change the XB 00 40 b 00 OK40x (Adjust 480i Comp1 )
Source XB 00 60 (Adjust 1080p Comp1)
b 00 OK60x (Adjust 1080p RGB)
3. Start ad 00 10
Adjustment
4. Return the OKx ( Success condition )
Response NGx ( Failed condition )
5. Read data ( main ) (main : component1 480i, RGB 1080p)
Adjustment ad 00 20 00000000000000000000000007c007b006dx
data ( main ) (main : component1 480i, RGB 1080p)
ad 00 30 000000070000000000000000007c00830077x
6. Con irm ad 00 99 NG 03 00x (Failed condition)
Adjustment NG 03 01x (Failed condition)
NG 03 02x (Failed condition)
OK 03 03x (Success condition)
7. End o ad 00 90 d 00 OK90x
Adjustment

(2) COMPONENT input ADC
VConvert to Component in Input-source.
VSignal equipment displays
Impress Resolution 480i
MODEL: 209 in Pattern Generator(480i Mode)
PATTERN : 65 in Pattern Generator
(MSPG-925 SERISE)
Impress Resolution 1080i
MODEL: 225 in Pattern Generator(1080P Mode)
PATTERN: 65 in Pattern Generator
(MSPG-925 SERISE)
3-3. DFT Process.
* Depend on situation, Step can be changed. 3-4. I sert Tool OPTION
a d Model Name dow load.
(1) Press IN_START key on R/C to insert Tool OPTION
(2) On the “ Tool Option ”, Insert Tool Option by a number key
(3) Press the ENTER(V)
(4) Press ENTER(V) again.
(5) Select “OK to Download” by using F/G(VOL +/-) and press
G(VOL +)
3-5. EDID(The Exte ded Display
Ide tificatio Data) dow load
(1) Press the ADJ KEY on R/C and enter EZ ADJUST.
(2) Select “5.EDID D/L” by using D/E(CH +/-) and press
ENTER(V).
(3) Select “Start” and press navigation key(G).
(4) EDID download is executed automatically.
(5) Press EXIT key on R/C
* Caution
- Never connect HDMI & D-sub Cable when the user
download EDID .
3-6. Co firmatio
(1) Press ‘InStart’ Key on Factory SVC Remote Controller.
And MUST check ADC & EDID ADJ status is OK.
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Model Name 50PZ950 60PZ950 50PZ570 60PZ570
Tool Option 1 32777 32781 32809 32813
Tool Option 2 390 390 455 455
Tool option 3 3551 3551 3231 3231
Tool option 4 7352 7352 7352 7352
Tool option 5 14921 14921 14920 14920
Tool option 6 33625 33625 857 857
No STEP
1 DFT Mode-In
2 Tool Option Write
3 ADC ADJ
4 [RF]RF CHECK
5 [RF]<DTV>EYE
6 [COMP1]Color Test
7 [COMP2]Color Test
8 [RGB]Color Test
9 Version Check
10 Wireless Check
11 Motion Check
12 EDID Write
13 [AV1]Color Test
14 KEY1 Test
15 KEY2 Test
16 [HDMI1]Color Test
17 [HDMI2]Color Test
18 [HDMI3]Color Test
19 [HDMI4]Color Test
20 [TV]USB2 Audio Test
21 SPDIF OUT Audio Test
22 [TV]USB1 Audio Test
23 LAN Port Check
24 3D Check

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4. SET assembly adjustme t method
* Caution : Each PCB assembly must be checked by check JIG
set. (Because power PCB Assembly damages to PDP
Module, especially be care ul)
4-1.POWER PCB Assembly Voltage
adjustme t (Va/Vs Voltage Adjustme t)
Test equipment : D.M.M 1EA
Connection Diagram or Measuring : re er to ig.4
Adjustment method
(1) Va adjustment
1) Connect + terminal o D. M.M. to Va pin o P811,
connect -terminal to GND pin o P811.
2) A ter turning VR901,voltage o D.M.M adjustment as
same as Va voltage which on label o panel right/top
(deviation; ±0.5V)
(2) Vs adjustment
1) Connect + terminal o D. M..M. to Vs pin o P811,
connect -terminal to GND pin o P811.
2) A ter turning VR951, voltage o D.M.M adjustment as
same as Vs voltage which on label o panel right/top (
deviation ; ±0.5V)
4-2. Dow load Serial umber (RS-232C)
VPress “Power on” key o service R/C.
(Baud rate : 115200 bps)
VConnect RS232 Signal Cable to RS-232 Jack.
VWrite Serial number by use RS-232.
VMust check the serial number at the Diagnostics o SET UP
menu. (Re er to below ‘6.SET INFORMATION’).
4-3. Adjustme t of White Bala ce
Required Equipment
ORemote controller or adjustment
OColor Analyzer ( CS-1000, CA-100,100+,CA-210 or same
produc: CH 10 (PDP)
* Please adjust CA-210, CA-100+ by CS-1000 be ore
measuring
OAuto W/B adjustment instrument(only or Auto adjustment)
O9 Pin D-Sub Jack(RS232C) is connected to the AUTO W/B
EQUIPMENT.
Before Adjust of White Bala ce, Please press POWER ONLY
key
Adjust Process will start by execute RS232C Command.
O Color temperature standards according to CSM and Module
OCS-1000/CA-100+/CA-210(CH 10) White balance
adjustment coordinates and color temperature.
* Manual W/B process (using adjusts Remote control)
Please Adjust in AV 1 MODE, Turn o Energy Saving Mode.
(1) Enter ‘PICTURE RESET’ on Picture Mode, then turn o
Fresh Contrast and Fresh colour in Advanced Control
(2) A ter enter Service Mode by pushing “ADJ” key,
(3) Enter White Pattern o o service mode, and change o ->
on.
(4) Enter “W/B ADJUST” by pushing “G” key at “3. W/B
ADJUST”.
* Gain Max Value is 192. So, Never make any Gain Value over
192 and please ix one Value on 192, between R, G and B.
* Auto-control inter ace and directions
(1) Adjust in the place where the in lux o light like loodlight
around is blocked. (Illumination is less than 10ux).
(2) Measure and adjust a ter sticking the Color Analyzer (CA-
100+, CA210 ) to the side o the module.
(3) Aging time
A ter aging start, keep the Power on (no suspension o
power supply) and heat-run over 5 minutes
O Auto adjustment Map (RS232C)
CSM PLASMA
Cool 11000K
Medium 9300K
Warm 6500K
CSM Color Coordinate Temp ±Color Coordinate
xy
Cool 0.276 0.283 11000K 0.002
Medium 0.285 0.293 9300K 0.002
Warm 0.313 0.329 6500K 0.002
Min Tpy Max
R-GAIN 0 192 192
G-GAIN 0 192 192
B-GAIN 0 192 192
No Index CMD1 CMD2 Set ID Data
1 Start w b 0 00
2 Gain Start w b 0 10
3 Gain End w b 0 1F
4 O set Start w b 0 20
5 O set End w b 0 2F
6 End w b 0 FF
7 Medium R j a 0 00~FF
8 Medium G j b 0 00~FF
9 Medium B j c 0 00~FF
10 Warm R j d 0 00~FF
11 Warm G j e 0 00~FF
12 Warm B j 0 00~FF
13 Cool R j g 0 00~FF
14 Cool G j h 0 00~FF
15 Cool B j i 0 00~FF
16 Cool R,G,B j j 0 00~FF
17 Medium j k 0 00~FF
18 Warm j l 0 00~FF

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4-4. Serial umber dow load & Model
ame D/L a d Check Tool Optio .
(1) Press "Power on" button o a service R/C.(Baud rate :
115200 bps)
(2) Connect RS232-C Signal Cable and start ‘Option Check
Program Ver3.8’
(3) Scan serial Number and press ‘F5’ button.
(4) Check ‘OK’ on program (1) program.
(5) Press ‘In start’ button on SVC R/C, check Serial Number
and Model Name.
4-5. Check Tool Optio a d write Cou try
Group & Area Code(Optio ) D/L
* Country Group Code Table.
4-6. Checki g the EYE-Q Operatio .
(1) Press the EYE Key on the adjustment remote controller.
(2) Check the Sensor DATA ( It must be under 10) and keep
the data longer than 1.5s
(3) Check ‘OK’
(Sensor DATA 0 ~ 4095, Power Saving Mode 0 ~ 12)
* IF you press IN-STAP Button, change Green Eye-check OSD.
4-7. Pi g TEST
* This test is to check Network operation.
(1) Equipment Setting
1) Play the LAN Port Test PROGRAM.
2) Input IP set up or an inspection to Test
*IP Number : 12.12.2.2
(2) LAN PORT inspection (PING TEST)
* In this case Network setting is on Manual Setting.
1) Play the LAN Port Test Program.
2) connect each other LAN Port Jack.
3) Play Test (F9) button and con irm OK Message.
4) remove LAN CABLE
(3) Check Wireless unction.
1) Connect set and Dongle o Wireless to Cable o HDMI &
TTA 20Pin
2) At OSD o SET, check the message like Fig 3.
3) Detach Cable o Wireless Dongle
Model Name 50PZ950 60PZ950 50PZ570 60PZ570
Tool Option 1 32777 32781 32809 32813
Tool Option 2 390 390 455 455
Tool option 3 3551 3551 3231 3231
Tool option 4 7352 7352 7352 7352
Tool option 5 14921 14921 14920 14920
Tool option 6 33625 33625 857 857
Code Country Group
EU 04 EU
Australia/New Zealand 06 AU
Singapore 07 SG
South A rica 08 ZA
Vietnam 09 VN
Israel 13 IL
Indonesia 14 ID
Malaysia 15 MY
Iran 16 IR
Kenya KE
ATV 12 A-ASIA

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4-8. Magic Motio Remote Co troller test
Required Equipment
- RF Remote Controller or test, IR-KEY-Code Remote
Controller or test
* You must con irm the battery power o Remote Controller
be ore test
(Recommend that change the battery per every lot)
(1) I you select the ‘start key(Mute)’ on the controller, you can
pairing with the TV SET.
(2) You can check the cursor on the TV Screen, when select
the ‘OK Key’ on the controller
(3) You must remove the pairing with the TV Set by select
‘Vol+(STOP) Key’ on the controller
4-9. 3D Fu ctio Test
Required Equipment
O Pattern Generator : MSHG-600, MSPG-6100 [SUPPORT
HDMI1.4])
MODE : HDMI mode NO. 872
Pattern No.83
(1) Please input 3D test pattern like below (HDMI mode NO.
872 , pattern No.83)
(2) When 3D OSD appear automatically, then press OK button
on ADJ Remote Controller.
(3) Check the picture. The picture must be same as below.
(Don’t have to wear 3D glasses.)
4-10. Check RF Emitter.
Required Equipment
- Pattern Generator : 3D-GT002, MSHG-600,
MSPG-6100 [SUPPORT HDMI1.4])
MODE : HDMI mode NO. 872
Pattern No.83
(1) On 3D Mode, Check the picture like below.
(2) I RF Emitter is correctly working, you can see that the
lamp o RF tester turns on.
5. Set I formatio
(Serial No & Model ame)
5-1. Check the serial umber
& Model Name
(1) Push the menu button in DTV mode.
(2) Check the Serial Number
Select the STATION -> Diagnostics -> To set
6. SW Dow load Guide.
* Be ore put a *.epk to USB Stick make ‘LG_DTV’ older in USB.
Then, put *.epk ile to ‘LG_DTV’ older and Turn on TV
(1) Put the USB Stick to the USB socket
(2) Automatically detecting update ile in USB Stick
* I your downloaded program version in USB Stick is Low,
it didn’t work.
But your downloaded version is High, USB data is
automatically detecting.
(3) Show the message “Copying iles rom memory”
(4) Updating is staring.
(5) Updating Completed, The TV will restart automatically.
A ter turn on TV, Please press ‘IN-STOP’ button on ADJ
Remote-control.
* IF you don’t have ADJ R/C, enter ‘Factory Reset’ in
OPTION MENU.
(6) When TV turn on, check the Updated version on
Diagnostics MENU.
*A ter downloading, have to adjust TOOL OPTION again.